64 files changed, 70328 insertions, 1 deletions

diff --git a/LICENSE b/LICENSE
new file mode 100644
index 0000000..3be69f6
--- /dev/null
+++ b/LICENSE
@@ -0,0 +1,53 @@
+/****************************************************************************
+*
+*    The MIT License (MIT)
+*
+*    Copyright (c) 2014 Vivante Corporation
+*
+*    Permission is hereby granted, free of charge, to any person obtaining a
+*    copy of this software and associated documentation files (the "Software"),
+*    to deal in the Software without restriction, including without limitation
+*    the rights to use, copy, modify, merge, publish, distribute, sublicense,
+*    and/or sell copies of the Software, and to permit persons to whom the
+*    Software is furnished to do so, subject to the following conditions:
+*
+*    The above copyright notice and this permission notice shall be included in
+*    all copies or substantial portions of the Software.
+*
+*    THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+*    IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+*    FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+*    AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+*    LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+*    FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+*    DEALINGS IN THE SOFTWARE.
+*
+*****************************************************************************
+*
+*    The GPL License (GPL)
+*
+*    Copyright (C) 2014  Vivante Corporation
+*
+*    This program is free software; you can redistribute it and/or
+*    modify it under the terms of the GNU General Public License
+*    as published by the Free Software Foundation; either version 2
+*    of the License, or (at your option) any later version.
+*
+*    This program is distributed in the hope that it will be useful,
+*    but WITHOUT ANY WARRANTY; without even the implied warranty of
+*    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+*    GNU General Public License for more details.
+*
+*    You should have received a copy of the GNU General Public License
+*    along with this program; if not, write to the Free Software Foundation,
+*    Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+*
+*****************************************************************************
+*
+*    Note: This software is released under dual MIT and GPL licenses. A
+*    recipient may use this file under the terms of either the MIT license or
+*    GPL License. If you wish to use only one license not the other, you can
+*    indicate your decision by deleting one of the above license notices in your
+*    version of this file.
+*
+*****************************************************************************/
diff --git a/Readme.md b/Readme.md
index 2ba0689..fd27902 100644
--- a/Readme.md
+++ b/Readme.md
@@ -1 +1,5 @@
-master is an empty branch, checkout a relevant topic branch.
+
+# ti-gc320-driver
+
+This project hosts the kernel driver for GC320 IP available in Texas
+Instruments DRA7x based SoCs.
diff --git a/src/Kbuild b/src/Kbuild
new file mode 100755
index 0000000..f952b62
--- /dev/null
+++ b/src/Kbuild
@@ -0,0 +1,285 @@
+##############################################################################
+#
+#    The MIT License (MIT)
+#
+#    Copyright (c) 2014 Vivante Corporation
+#
+#    Permission is hereby granted, free of charge, to any person obtaining a
+#    copy of this software and associated documentation files (the "Software"),
+#    to deal in the Software without restriction, including without limitation
+#    the rights to use, copy, modify, merge, publish, distribute, sublicense,
+#    and/or sell copies of the Software, and to permit persons to whom the
+#    Software is furnished to do so, subject to the following conditions:
+#
+#    The above copyright notice and this permission notice shall be included in
+#    all copies or substantial portions of the Software.
+#
+#    THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+#    IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+#    FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+#    AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+#    LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+#    FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+#    DEALINGS IN THE SOFTWARE.
+#
+##############################################################################
+#
+#    The GPL License (GPL)
+#
+#    Copyright (C) 2014  Vivante Corporation
+#
+#    This program is free software; you can redistribute it and/or
+#    modify it under the terms of the GNU General Public License
+#    as published by the Free Software Foundation; either version 2
+#    of the License, or (at your option) any later version.
+#
+#    This program is distributed in the hope that it will be useful,
+#    but WITHOUT ANY WARRANTY; without even the implied warranty of
+#    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+#    GNU General Public License for more details.
+#
+#    You should have received a copy of the GNU General Public License
+#    along with this program; if not, write to the Free Software Foundation,
+#    Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+#
+##############################################################################
+#
+#    Note: This software is released under dual MIT and GPL licenses. A
+#    recipient may use this file under the terms of either the MIT license or
+#    GPL License. If you wish to use only one license not the other, you can
+#    indicate your decision by deleting one of the above license notices in your
+#    version of this file.
+#
+##############################################################################
+
+
+#
+# Linux build file for kernel HAL driver.
+#
+
+include $(AQROOT)/config.j6
+
+KERNEL_DIR ?= $(TOOL_DIR)/kernel
+
+OS_KERNEL_DIR   := hal/os/linux/kernel
+ARCH_KERNEL_DIR := hal/kernel/arch
+ARCH_VG_KERNEL_DIR := hal/kernel/archvg
+HAL_KERNEL_DIR  := hal/kernel
+HOST := $(shell hostname)
+
+# Check and include platform config.
+ifneq ($(PLATFORM),)
+
+# Get platform config path.
+PLATFORM_CONFIG ?= $(AQROOT)/$(OS_KERNEL_DIR)/platform/$(PLATFORM).config
+
+# Check whether it exists.
+PLATFORM_CONFIG := $(wildcard $(PLATFORM_CONFIG))
+
+# Include it if exists.
+ifneq ($(PLATFORM_CONFIG),)
+include $(PLATFORM_CONFIG)
+endif
+
+endif
+
+MODULE_NAME ?= galcore
+CUSTOMER_ALLOCATOR_OBJS    ?=
+ALLOCATOR_ARRAY_H_LOCATION ?= $(OS_KERNEL_DIR)/allocator/default/
+
+EXTRA_CFLAGS += -Werror
+
+OBJS := $(OS_KERNEL_DIR)/gc_hal_kernel_device.o \
+        $(OS_KERNEL_DIR)/gc_hal_kernel_linux.o \
+        $(OS_KERNEL_DIR)/gc_hal_kernel_math.o \
+        $(OS_KERNEL_DIR)/gc_hal_kernel_os.o \
+        $(OS_KERNEL_DIR)/gc_hal_kernel_debugfs.o \
+        $(OS_KERNEL_DIR)/gc_hal_kernel_allocator.o \
+
+ifneq ($(CONFIG_DMA_SHARED_BUFFER),)
+OBJS += $(OS_KERNEL_DIR)/allocator/default/gc_hal_kernel_allocator_dmabuf.o
+endif
+
+ifneq ($(CONFIG_IOMMU_SUPPORT),)
+OBJS += $(OS_KERNEL_DIR)/gc_hal_kernel_iommu.o
+endif
+
+ifneq ($(PLATFORM),)
+OBJS += $(OS_KERNEL_DIR)/gc_hal_kernel_probe.o
+OBJS += $(OS_KERNEL_DIR)/platform/$(PLATFORM).o
+else
+OBJS += $(OS_KERNEL_DIR)/gc_hal_kernel_driver.o
+endif
+
+OBJS += $(HAL_KERNEL_DIR)/gc_hal_kernel.o \
+        $(HAL_KERNEL_DIR)/gc_hal_kernel_command.o \
+        $(HAL_KERNEL_DIR)/gc_hal_kernel_db.o \
+        $(HAL_KERNEL_DIR)/gc_hal_kernel_debug.o \
+        $(HAL_KERNEL_DIR)/gc_hal_kernel_event.o \
+        $(HAL_KERNEL_DIR)/gc_hal_kernel_heap.o \
+        $(HAL_KERNEL_DIR)/gc_hal_kernel_mmu.o \
+        $(HAL_KERNEL_DIR)/gc_hal_kernel_video_memory.o \
+        $(HAL_KERNEL_DIR)/gc_hal_kernel_power.o
+
+OBJS += $(ARCH_KERNEL_DIR)/gc_hal_kernel_context.o \
+        $(ARCH_KERNEL_DIR)/gc_hal_kernel_hardware.o
+
+
+
+ifneq ($(CONFIG_SYNC),)
+EXTRA_CFLAGS += -Idrivers/staging/android
+
+OBJS += $(OS_KERNEL_DIR)/gc_hal_kernel_sync.o
+endif
+
+ifeq ($(SECURITY), 1)
+OBJS += $(OS_KERNEL_DIR)/gc_hal_kernel_security_channel.o \
+        $(HAL_KERNEL_DIR)/gc_hal_kernel_security.o
+endif
+
+ifneq ($(CUSTOMER_ALLOCATOR_OBJS),)
+OBJS += $(CUSTOMER_ALLOCATOR_OBJS)
+endif
+
+ifeq ($(KERNELRELEASE), )
+
+.PHONY: all clean install
+
+# Define targets.
+all:
+        @$(MAKE) V=$(V) ARCH=$(ARCH_TYPE) -C $(KERNEL_DIR) SUBDIRS=`pwd` modules
+
+clean:
+        @rm -rf $(OBJS)
+        @rm -rf modules.order Module.symvers .tmp_versions
+        @find $(AQROOT) -name ".gc_*.cmd" | xargs rm -f
+
+install: all
+        @mkdir -p $(SDK_DIR)/drivers
+        @cp $(MODULE_NAME).ko $(SDK_DIR)/drivers
+
+else
+
+
+EXTRA_CFLAGS += -DLINUX -DDRIVER
+
+ifeq ($(FLAREON),1)
+EXTRA_CFLAGS += -DFLAREON
+endif
+
+ifeq ($(DEBUG), 1)
+EXTRA_CFLAGS += -DDBG=1 -DDEBUG -D_DEBUG
+else
+EXTRA_CFLAGS += -DDBG=0
+endif
+
+ifeq ($(NO_DMA_COHERENT), 1)
+EXTRA_CFLAGS += -DNO_DMA_COHERENT
+endif
+
+ifeq ($(CONFIG_DOVE_GPU), 1)
+EXTRA_CFLAGS += -DCONFIG_DOVE_GPU=1
+endif
+
+ifneq ($(USE_PLATFORM_DRIVER), 0)
+EXTRA_CFLAGS += -DUSE_PLATFORM_DRIVER=1
+else
+EXTRA_CFLAGS += -DUSE_PLATFORM_DRIVER=0
+endif
+
+EXTRA_CFLAGS += -DVIVANTE_PROFILER=1
+EXTRA_CFLAGS += -DVIVANTE_PROFILER_CONTEXT=1
+
+ifeq ($(ENABLE_GPU_CLOCK_BY_DRIVER), 1)
+EXTRA_CFLAGS += -DENABLE_GPU_CLOCK_BY_DRIVER=1
+else
+EXTRA_CFLAGS += -DENABLE_GPU_CLOCK_BY_DRIVER=0
+endif
+
+ifeq ($(USE_NEW_LINUX_SIGNAL), 1)
+EXTRA_CFLAGS += -DUSE_NEW_LINUX_SIGNAL=1
+else
+EXTRA_CFLAGS += -DUSE_NEW_LINUX_SIGNAL=0
+endif
+
+ifeq ($(FORCE_ALL_VIDEO_MEMORY_CACHED), 1)
+EXTRA_CFLAGS += -DgcdPAGED_MEMORY_CACHEABLE=1
+else
+EXTRA_CFLAGS += -DgcdPAGED_MEMORY_CACHEABLE=0
+endif
+
+ifeq ($(NONPAGED_MEMORY_CACHEABLE), 1)
+EXTRA_CFLAGS += -DgcdNONPAGED_MEMORY_CACHEABLE=1
+else
+EXTRA_CFLAGS += -DgcdNONPAGED_MEMORY_CACHEABLE=0
+endif
+
+ifeq ($(NONPAGED_MEMORY_BUFFERABLE), 1)
+EXTRA_CFLAGS += -DgcdNONPAGED_MEMORY_BUFFERABLE=1
+else
+EXTRA_CFLAGS += -DgcdNONPAGED_MEMORY_BUFFERABLE=0
+endif
+
+ifeq ($(CACHE_FUNCTION_UNIMPLEMENTED), 1)
+EXTRA_CFLAGS += -DgcdCACHE_FUNCTION_UNIMPLEMENTED=1
+else
+EXTRA_CFLAGS += -DgcdCACHE_FUNCTION_UNIMPLEMENTED=0
+endif
+
+ifeq ($(CONFIG_SMP), y)
+EXTRA_CFLAGS += -DgcdSMP=1
+else
+EXTRA_CFLAGS += -DgcdSMP=0
+endif
+
+EXTRA_CFLAGS += -DgcdENABLE_3D=0
+
+EXTRA_CFLAGS += -DgcdENABLE_2D=1
+
+EXTRA_CFLAGS += -DgcdENABLE_VG=0
+
+ifeq ($(ENABLE_OUTER_CACHE_PATCH), 1)
+EXTRA_CFLAGS += -DgcdENABLE_OUTER_CACHE_PATCH=1
+else
+EXTRA_CFLAGS += -DgcdENABLE_OUTER_CACHE_PATCH=0
+endif
+
+ifeq ($(USE_BANK_ALIGNMENT), 1)
+    EXTRA_CFLAGS += -DgcdENABLE_BANK_ALIGNMENT=1
+    ifneq ($(BANK_BIT_START), 0)
+                ifneq ($(BANK_BIT_END), 0)
+                    EXTRA_CFLAGS += -DgcdBANK_BIT_START=$(BANK_BIT_START)
+                    EXTRA_CFLAGS += -DgcdBANK_BIT_END=$(BANK_BIT_END)
+                endif
+    endif
+
+    ifneq ($(BANK_CHANNEL_BIT), 0)
+        EXTRA_CFLAGS += -DgcdBANK_CHANNEL_BIT=$(BANK_CHANNEL_BIT)
+    endif
+endif
+
+ifeq ($(gcdFPGA_BUILD), 1)
+EXTRA_CFLAGS += -DgcdFPGA_BUILD=1
+else
+EXTRA_CFLAGS += -DgcdFPGA_BUILD=0
+endif
+
+ifeq ($(SECURITY), 1)
+EXTRA_CFLAGS += -DgcdSECURITY=1
+endif
+
+EXTRA_CFLAGS += -I$(AQROOT)/hal/kernel/inc
+EXTRA_CFLAGS += -I$(AQROOT)/hal/kernel
+EXTRA_CFLAGS += -I$(AQROOT)/hal/kernel/arch
+EXTRA_CFLAGS += -I$(AQROOT)/hal/kernel/inc
+EXTRA_CFLAGS += -I$(AQROOT)/hal/os/linux/kernel
+EXTRA_CFLAGS += -I$(AQROOT)/$(ALLOCATOR_ARRAY_H_LOCATION)
+
+
+EXTRA_CFLAGS += -DHOST=\"$(HOST)\"
+
+obj-m = $(MODULE_NAME).o
+
+$(MODULE_NAME)-objs  = $(OBJS)
+
+endif
diff --git a/src/config.j6 b/src/config.j6
new file mode 100755
index 0000000..0ff6b09
--- /dev/null
+++ b/src/config.j6
@@ -0,0 +1,70 @@
+##############################################################################
+#
+#    The MIT License (MIT)
+#
+#    Copyright (c) 2014 Vivante Corporation
+#
+#    Permission is hereby granted, free of charge, to any person obtaining a
+#    copy of this software and associated documentation files (the "Software"),
+#    to deal in the Software without restriction, including without limitation
+#    the rights to use, copy, modify, merge, publish, distribute, sublicense,
+#    and/or sell copies of the Software, and to permit persons to whom the
+#    Software is furnished to do so, subject to the following conditions:
+#
+#    The above copyright notice and this permission notice shall be included in
+#    all copies or substantial portions of the Software.
+#
+#    THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+#    IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+#    FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+#    AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+#    LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+#    FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+#    DEALINGS IN THE SOFTWARE.
+#
+##############################################################################
+#
+#    The GPL License (GPL)
+#
+#    Copyright (C) 2014  Vivante Corporation
+#
+#    This program is free software; you can redistribute it and/or
+#    modify it under the terms of the GNU General Public License
+#    as published by the Free Software Foundation; either version 2
+#    of the License, or (at your option) any later version.
+#
+#    This program is distributed in the hope that it will be useful,
+#    but WITHOUT ANY WARRANTY; without even the implied warranty of
+#    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+#    GNU General Public License for more details.
+#
+#    You should have received a copy of the GNU General Public License
+#    along with this program; if not, write to the Free Software Foundation,
+#    Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+#
+##############################################################################
+#
+#    Note: This software is released under dual MIT and GPL licenses. A
+#    recipient may use this file under the terms of either the MIT license or
+#    GPL License. If you wish to use only one license not the other, you can
+#    indicate your decision by deleting one of the above license notices in your
+#    version of this file.
+#
+##############################################################################
+
+
+ARCH_TYPE                         ?= arm
+SDK_DIR                           ?= $(AQROOT)/build/sdk
+VIVANTE_ENABLE_3D                 ?=0
+VIVANTE_ENABLE_2D                 ?=1
+VIVANTE_ENABLE_VG              ?=0
+FORCE_ALL_VIDEO_MEMORY_CACHED     ?= 0
+NONPAGED_MEMORY_CACHEABLE         ?= 0
+NONPAGED_MEMORY_BUFFERABLE        ?= 1
+CACHE_FUNCTION_UNIMPLEMENTED      ?= 0
+ENABLE_OUTER_CACHE_PATCH          ?= 1
+USE_BANK_ALIGNMENT                ?= 0
+BANK_BIT_START                    ?= 0
+BANK_BIT_END                      ?= 0
+BANK_CHANNEL_BIT                  ?= 0
+PLATFORM                          ?= ti/gc_hal_kernel_platform_j6
diff --git a/src/hal/kernel/arch/gc_hal_kernel_context.c b/src/hal/kernel/arch/gc_hal_kernel_context.c
new file mode 100755
index 0000000..91e4c6b
--- /dev/null
+++ b/src/hal/kernel/arch/gc_hal_kernel_context.c
@@ -0,0 +1,1108 @@
+/****************************************************************************
+*
+*    The MIT License (MIT)
+*
+*    Copyright (c) 2014 Vivante Corporation
+*
+*    Permission is hereby granted, free of charge, to any person obtaining a
+*    copy of this software and associated documentation files (the "Software"),
+*    to deal in the Software without restriction, including without limitation
+*    the rights to use, copy, modify, merge, publish, distribute, sublicense,
+*    and/or sell copies of the Software, and to permit persons to whom the
+*    Software is furnished to do so, subject to the following conditions:
+*
+*    The above copyright notice and this permission notice shall be included in
+*    all copies or substantial portions of the Software.
+*
+*    THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+*    IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+*    FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+*    AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+*    LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+*    FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+*    DEALINGS IN THE SOFTWARE.
+*
+*****************************************************************************
+*
+*    The GPL License (GPL)
+*
+*    Copyright (C) 2014  Vivante Corporation
+*
+*    This program is free software; you can redistribute it and/or
+*    modify it under the terms of the GNU General Public License
+*    as published by the Free Software Foundation; either version 2
+*    of the License, or (at your option) any later version.
+*
+*    This program is distributed in the hope that it will be useful,
+*    but WITHOUT ANY WARRANTY; without even the implied warranty of
+*    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+*    GNU General Public License for more details.
+*
+*    You should have received a copy of the GNU General Public License
+*    along with this program; if not, write to the Free Software Foundation,
+*    Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+*
+*****************************************************************************
+*
+*    Note: This software is released under dual MIT and GPL licenses. A
+*    recipient may use this file under the terms of either the MIT license or
+*    GPL License. If you wish to use only one license not the other, you can
+*    indicate your decision by deleting one of the above license notices in your
+*    version of this file.
+*
+*****************************************************************************/
+
+
+#include "gc_hal.h"
+#include "gc_hal_kernel.h"
+#include "gc_hal_kernel_context.h"
+#include "gc_hal_kernel_buffer.h"
+
+/******************************************************************************\
+******************************** Debugging Macro *******************************
+\******************************************************************************/
+
+/* Zone used for header/footer. */
+#define _GC_OBJ_ZONE    gcvZONE_HARDWARE
+
+
+/******************************************************************************\
+************************** Context State Buffer Helpers ************************
+\******************************************************************************/
+
+#define _STATE(reg)                                                            \
+    _State(\
+        Context, index, \
+        reg ## _Address >> 2, \
+        reg ## _ResetValue, \
+        reg ## _Count, \
+        gcvFALSE, gcvFALSE                                                     \
+        )
+
+#define _STATE_COUNT(reg, count)                                               \
+    _State(\
+        Context, index, \
+        reg ## _Address >> 2, \
+        reg ## _ResetValue, \
+        count, \
+        gcvFALSE, gcvFALSE                                                     \
+        )
+
+#define _STATE_COUNT_OFFSET(reg, offset, count)                                \
+    _State(\
+        Context, index, \
+        (reg ## _Address >> 2) + offset, \
+        reg ## _ResetValue, \
+        count, \
+        gcvFALSE, gcvFALSE                                                     \
+        )
+
+#define _STATE_MIRROR_COUNT(reg, mirror, count)                                \
+    _StateMirror(\
+        Context, \
+        reg ## _Address >> 2, \
+        count, \
+        mirror ## _Address >> 2                                                \
+        )
+
+#define _STATE_HINT(reg)                                                       \
+    _State(\
+        Context, index, \
+        reg ## _Address >> 2, \
+        reg ## _ResetValue, \
+        reg ## _Count, \
+        gcvFALSE, gcvTRUE                                                      \
+        )
+
+#define _STATE_HINT_BLOCK(reg, block, count)                                   \
+    _State(\
+        Context, index, \
+        (reg ## _Address >> 2) + (block << reg ## _BLK), \
+        reg ## _ResetValue, \
+        count, \
+        gcvFALSE, gcvTRUE                                                      \
+        )
+
+#define _STATE_COUNT_OFFSET_HINT(reg, offset, count)                           \
+    _State(\
+        Context, index, \
+        (reg ## _Address >> 2) + offset, \
+        reg ## _ResetValue, \
+        count, \
+        gcvFALSE, gcvTRUE                                                      \
+        )
+
+#define _STATE_X(reg)                                                          \
+    _State(\
+        Context, index, \
+        reg ## _Address >> 2, \
+        reg ## _ResetValue, \
+        reg ## _Count, \
+        gcvTRUE, gcvFALSE                                                      \
+        )
+
+#define _STATE_INIT_VALUE(reg, value)                                          \
+    _State(\
+        Context, index, \
+        reg ## _Address >> 2, \
+        value, \
+        reg ## _Count, \
+        gcvFALSE, gcvFALSE                                                     \
+        )
+
+#define _CLOSE_RANGE()                                                         \
+    _TerminateStateBlock(Context, index)
+
+#define _ENABLE(reg, field)                                                    \
+    do                                                                         \
+    {                                                                          \
+        if (gcmVERIFYFIELDVALUE(data, reg, MASK_ ## field, ENABLED))           \
+        {                                                                      \
+            enable |= gcmFIELDMASK(reg, field);                                \
+        }                                                                      \
+    }                                                                          \
+    while (gcvFALSE)
+
+#define _BLOCK_COUNT(reg)                                                      \
+    ((reg ## _Count) >> (reg ## _BLK))
+
+
+/******************************************************************************\
+*********************** Support Functions and Definitions **********************
+\******************************************************************************/
+
+#define gcdSTATE_MASK \
+    (gcmSETFIELDVALUE(0, AQ_COMMAND_NOP_COMMAND, OPCODE, NOP) | 0xC0FFEE)
+
+
+
+static gctUINT32
+_FlushPipe(
+    IN gckCONTEXT Context,
+    IN gctUINT32 Index,
+    IN gcePIPE_SELECT Pipe
+    )
+{
+    gctUINT32 flushSlots;
+    gctBOOL txCacheFix;
+    gctBOOL fcFlushStall;
+    gctBOOL iCacheInvalidate;
+
+    txCacheFix
+        = gckHARDWARE_IsFeatureAvailable(Context->hardware, gcvFEATURE_TEX_CACHE_FLUSH_FIX);
+
+    fcFlushStall
+        = gckHARDWARE_IsFeatureAvailable(Context->hardware, gcvFEATURE_FC_FLUSH_STALL);
+
+    iCacheInvalidate
+        = ((((gctUINT32) (Context->hardware->identity.chipMinorFeatures3)) >> (0 ? 3:3) & ((gctUINT32) ((((1 ? 3:3) - (0 ? 3:3) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 3:3) - (0 ? 3:3) + 1)))))) == (0x1 & ((gctUINT32) ((((1 ? 3:3) - (0 ? 3:3) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 3:3) - (0 ? 3:3) + 1)))))));
+
+    flushSlots = 6;
+
+    if (Pipe == gcvPIPE_3D)
+    {
+        if (!txCacheFix)
+        {
+            /* Semaphore stall */
+            flushSlots += 4;
+        }
+
+        /* VST cache */
+        flushSlots += 2;
+    }
+
+    if (fcFlushStall)
+    {
+        /* Flush tile status cache. */
+        flushSlots += 6;
+    }
+
+    if (iCacheInvalidate)
+    {
+        flushSlots += 12;
+    }
+
+    if (Context->buffer != gcvNULL)
+    {
+        gctUINT32_PTR buffer;
+
+        /* Address correct index. */
+        buffer = Context->buffer->logical + Index;
+
+        if (Pipe == gcvPIPE_3D && !txCacheFix)
+        {
+            /* Semaphore from FE to PE. */
+            *buffer++
+                = ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 31:27) - (0 ? 31:27) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 31:27) - (0 ? 31:27) + 1))))))) << (0 ? 31:27))) | (((gctUINT32) (0x01 & ((gctUINT32) ((((1 ? 31:27) - (0 ? 31:27) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 31:27) - (0 ? 31:27) + 1))))))) << (0 ? 31:27)))
+                | ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 25:16) - (0 ? 25:16) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 25:16) - (0 ? 25:16) + 1))))))) << (0 ? 25:16))) | (((gctUINT32) ((gctUINT32) (1) & ((gctUINT32) ((((1 ? 25:16) - (0 ? 25:16) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 25:16) - (0 ? 25:16) + 1))))))) << (0 ? 25:16)))
+                | ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 15:0) - (0 ? 15:0) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 15:0) - (0 ? 15:0) + 1))))))) << (0 ? 15:0))) | (((gctUINT32) ((gctUINT32) (0x0E02) & ((gctUINT32) ((((1 ? 15:0) - (0 ? 15:0) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 15:0) - (0 ? 15:0) + 1))))))) << (0 ? 15:0)));
+
+            *buffer++
+                = ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 4:0) - (0 ? 4:0) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 4:0) - (0 ? 4:0) + 1))))))) << (0 ? 4:0))) | (((gctUINT32) (0x01 & ((gctUINT32) ((((1 ? 4:0) - (0 ? 4:0) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 4:0) - (0 ? 4:0) + 1))))))) << (0 ? 4:0)))
+                | ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 12:8) - (0 ? 12:8) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 12:8) - (0 ? 12:8) + 1))))))) << (0 ? 12:8))) | (((gctUINT32) (0x07 & ((gctUINT32) ((((1 ? 12:8) - (0 ? 12:8) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 12:8) - (0 ? 12:8) + 1))))))) << (0 ? 12:8)));
+
+            /* Stall from FE to PE. */
+            *buffer++
+                = ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 31:27) - (0 ? 31:27) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 31:27) - (0 ? 31:27) + 1))))))) << (0 ? 31:27))) | (((gctUINT32) (0x09 & ((gctUINT32) ((((1 ? 31:27) - (0 ? 31:27) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 31:27) - (0 ? 31:27) + 1))))))) << (0 ? 31:27)));
+
+            *buffer++
+                = ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 4:0) - (0 ? 4:0) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 4:0) - (0 ? 4:0) + 1))))))) << (0 ? 4:0))) | (((gctUINT32) (0x01 & ((gctUINT32) ((((1 ? 4:0) - (0 ? 4:0) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 4:0) - (0 ? 4:0) + 1))))))) << (0 ? 4:0)))
+                | ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 12:8) - (0 ? 12:8) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 12:8) - (0 ? 12:8) + 1))))))) << (0 ? 12:8))) | (((gctUINT32) (0x07 & ((gctUINT32) ((((1 ? 12:8) - (0 ? 12:8) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 12:8) - (0 ? 12:8) + 1))))))) << (0 ? 12:8)));
+        }
+
+        /* Flush the current pipe. */
+        *buffer++
+            = ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 31:27) - (0 ? 31:27) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 31:27) - (0 ? 31:27) + 1))))))) << (0 ? 31:27))) | (((gctUINT32) (0x01 & ((gctUINT32) ((((1 ? 31:27) - (0 ? 31:27) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 31:27) - (0 ? 31:27) + 1))))))) << (0 ? 31:27)))
+            | ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 25:16) - (0 ? 25:16) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 25:16) - (0 ? 25:16) + 1))))))) << (0 ? 25:16))) | (((gctUINT32) ((gctUINT32) (1) & ((gctUINT32) ((((1 ? 25:16) - (0 ? 25:16) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 25:16) - (0 ? 25:16) + 1))))))) << (0 ? 25:16)))
+            | ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 15:0) - (0 ? 15:0) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 15:0) - (0 ? 15:0) + 1))))))) << (0 ? 15:0))) | (((gctUINT32) ((gctUINT32) (0x0E03) & ((gctUINT32) ((((1 ? 15:0) - (0 ? 15:0) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 15:0) - (0 ? 15:0) + 1))))))) << (0 ? 15:0)));
+
+        *buffer++
+            = (Pipe == gcvPIPE_2D)
+                ?   ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 3:3) - (0 ? 3:3) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 3:3) - (0 ? 3:3) + 1))))))) << (0 ? 3:3))) | (((gctUINT32) (0x1 & ((gctUINT32) ((((1 ? 3:3) - (0 ? 3:3) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 3:3) - (0 ? 3:3) + 1))))))) << (0 ? 3:3)))
+                :   ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 0:0) - (0 ? 0:0) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 0:0) - (0 ? 0:0) + 1))))))) << (0 ? 0:0))) | (((gctUINT32) (0x1 & ((gctUINT32) ((((1 ? 0:0) - (0 ? 0:0) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 0:0) - (0 ? 0:0) + 1))))))) << (0 ? 0:0)))
+                  | ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 1:1) - (0 ? 1:1) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 1:1) - (0 ? 1:1) + 1))))))) << (0 ? 1:1))) | (((gctUINT32) (0x1 & ((gctUINT32) ((((1 ? 1:1) - (0 ? 1:1) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 1:1) - (0 ? 1:1) + 1))))))) << (0 ? 1:1)))
+                  | ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 2:2) - (0 ? 2:2) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 2:2) - (0 ? 2:2) + 1))))))) << (0 ? 2:2))) | (((gctUINT32) (0x1 & ((gctUINT32) ((((1 ? 2:2) - (0 ? 2:2) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 2:2) - (0 ? 2:2) + 1))))))) << (0 ? 2:2)))
+                  | ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 5:5) - (0 ? 5:5) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 5:5) - (0 ? 5:5) + 1))))))) << (0 ? 5:5))) | (((gctUINT32) (0x1 & ((gctUINT32) ((((1 ? 5:5) - (0 ? 5:5) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 5:5) - (0 ? 5:5) + 1))))))) << (0 ? 5:5)));
+
+        /* Flush VST in separate cmd. */
+        if (Pipe == gcvPIPE_3D)
+        {
+            *buffer++
+                = ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 31:27) - (0 ? 31:27) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 31:27) - (0 ? 31:27) + 1))))))) << (0 ? 31:27))) | (((gctUINT32) (0x01 & ((gctUINT32) ((((1 ? 31:27) - (0 ? 31:27) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 31:27) - (0 ? 31:27) + 1))))))) << (0 ? 31:27)))
+                | ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 25:16) - (0 ? 25:16) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 25:16) - (0 ? 25:16) + 1))))))) << (0 ? 25:16))) | (((gctUINT32) ((gctUINT32) (1) & ((gctUINT32) ((((1 ? 25:16) - (0 ? 25:16) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 25:16) - (0 ? 25:16) + 1))))))) << (0 ? 25:16)))
+                | ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 15:0) - (0 ? 15:0) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 15:0) - (0 ? 15:0) + 1))))))) << (0 ? 15:0))) | (((gctUINT32) ((gctUINT32) (0x0E03) & ((gctUINT32) ((((1 ? 15:0) - (0 ? 15:0) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 15:0) - (0 ? 15:0) + 1))))))) << (0 ? 15:0)));
+
+            *buffer++ = ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 4:4) - (0 ? 4:4) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 4:4) - (0 ? 4:4) + 1))))))) << (0 ? 4:4))) | (((gctUINT32) (0x1 & ((gctUINT32) ((((1 ? 4:4) - (0 ? 4:4) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 4:4) - (0 ? 4:4) + 1))))))) << (0 ? 4:4)));
+        }
+
+        /* Semaphore from FE to PE. */
+        *buffer++
+            = ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 31:27) - (0 ? 31:27) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 31:27) - (0 ? 31:27) + 1))))))) << (0 ? 31:27))) | (((gctUINT32) (0x01 & ((gctUINT32) ((((1 ? 31:27) - (0 ? 31:27) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 31:27) - (0 ? 31:27) + 1))))))) << (0 ? 31:27)))
+            | ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 25:16) - (0 ? 25:16) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 25:16) - (0 ? 25:16) + 1))))))) << (0 ? 25:16))) | (((gctUINT32) ((gctUINT32) (1) & ((gctUINT32) ((((1 ? 25:16) - (0 ? 25:16) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 25:16) - (0 ? 25:16) + 1))))))) << (0 ? 25:16)))
+            | ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 15:0) - (0 ? 15:0) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 15:0) - (0 ? 15:0) + 1))))))) << (0 ? 15:0))) | (((gctUINT32) ((gctUINT32) (0x0E02) & ((gctUINT32) ((((1 ? 15:0) - (0 ? 15:0) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 15:0) - (0 ? 15:0) + 1))))))) << (0 ? 15:0)));
+
+        *buffer++
+            = ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 4:0) - (0 ? 4:0) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 4:0) - (0 ? 4:0) + 1))))))) << (0 ? 4:0))) | (((gctUINT32) (0x01 & ((gctUINT32) ((((1 ? 4:0) - (0 ? 4:0) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 4:0) - (0 ? 4:0) + 1))))))) << (0 ? 4:0)))
+            | ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 12:8) - (0 ? 12:8) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 12:8) - (0 ? 12:8) + 1))))))) << (0 ? 12:8))) | (((gctUINT32) (0x07 & ((gctUINT32) ((((1 ? 12:8) - (0 ? 12:8) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 12:8) - (0 ? 12:8) + 1))))))) << (0 ? 12:8)));
+
+        /* Stall from FE to PE. */
+        *buffer++
+            = ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 31:27) - (0 ? 31:27) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 31:27) - (0 ? 31:27) + 1))))))) << (0 ? 31:27))) | (((gctUINT32) (0x09 & ((gctUINT32) ((((1 ? 31:27) - (0 ? 31:27) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 31:27) - (0 ? 31:27) + 1))))))) << (0 ? 31:27)));
+
+        *buffer++
+            = ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 4:0) - (0 ? 4:0) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 4:0) - (0 ? 4:0) + 1))))))) << (0 ? 4:0))) | (((gctUINT32) (0x01 & ((gctUINT32) ((((1 ? 4:0) - (0 ? 4:0) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 4:0) - (0 ? 4:0) + 1))))))) << (0 ? 4:0)))
+            | ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 12:8) - (0 ? 12:8) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 12:8) - (0 ? 12:8) + 1))))))) << (0 ? 12:8))) | (((gctUINT32) (0x07 & ((gctUINT32) ((((1 ? 12:8) - (0 ? 12:8) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 12:8) - (0 ? 12:8) + 1))))))) << (0 ? 12:8)));
+
+        if (fcFlushStall)
+        {
+            *buffer++
+                = ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 31:27) - (0 ? 31:27) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 31:27) - (0 ? 31:27) + 1))))))) << (0 ? 31:27))) | (((gctUINT32) (0x01 & ((gctUINT32) ((((1 ? 31:27) - (0 ? 31:27) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 31:27) - (0 ? 31:27) + 1))))))) << (0 ? 31:27)))
+                | ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 15:0) - (0 ? 15:0) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 15:0) - (0 ? 15:0) + 1))))))) << (0 ? 15:0))) | (((gctUINT32) ((gctUINT32) (0x0594) & ((gctUINT32) ((((1 ? 15:0) - (0 ? 15:0) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 15:0) - (0 ? 15:0) + 1))))))) << (0 ? 15:0)))
+                | ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 25:16) - (0 ? 25:16) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 25:16) - (0 ? 25:16) + 1))))))) << (0 ? 25:16))) | (((gctUINT32) ((gctUINT32) (1) & ((gctUINT32) ((((1 ? 25:16) - (0 ? 25:16) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 25:16) - (0 ? 25:16) + 1))))))) << (0 ? 25:16)));
+
+            *buffer++
+                = ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 0:0) - (0 ? 0:0) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 0:0) - (0 ? 0:0) + 1))))))) << (0 ? 0:0))) | (((gctUINT32) (0x1 & ((gctUINT32) ((((1 ? 0:0) - (0 ? 0:0) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 0:0) - (0 ? 0:0) + 1))))))) << (0 ? 0:0)));
+
+            /* Semaphore from FE to PE. */
+            *buffer++
+                = ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 31:27) - (0 ? 31:27) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 31:27) - (0 ? 31:27) + 1))))))) << (0 ? 31:27))) | (((gctUINT32) (0x01 & ((gctUINT32) ((((1 ? 31:27) - (0 ? 31:27) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 31:27) - (0 ? 31:27) + 1))))))) << (0 ? 31:27)))
+                | ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 25:16) - (0 ? 25:16) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 25:16) - (0 ? 25:16) + 1))))))) << (0 ? 25:16))) | (((gctUINT32) ((gctUINT32) (1) & ((gctUINT32) ((((1 ? 25:16) - (0 ? 25:16) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 25:16) - (0 ? 25:16) + 1))))))) << (0 ? 25:16)))
+                | ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 15:0) - (0 ? 15:0) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 15:0) - (0 ? 15:0) + 1))))))) << (0 ? 15:0))) | (((gctUINT32) ((gctUINT32) (0x0E02) & ((gctUINT32) ((((1 ? 15:0) - (0 ? 15:0) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 15:0) - (0 ? 15:0) + 1))))))) << (0 ? 15:0)));
+
+            *buffer++
+                = ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 4:0) - (0 ? 4:0) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 4:0) - (0 ? 4:0) + 1))))))) << (0 ? 4:0))) | (((gctUINT32) (0x01 & ((gctUINT32) ((((1 ? 4:0) - (0 ? 4:0) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 4:0) - (0 ? 4:0) + 1))))))) << (0 ? 4:0)))
+                | ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 12:8) - (0 ? 12:8) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 12:8) - (0 ? 12:8) + 1))))))) << (0 ? 12:8))) | (((gctUINT32) (0x07 & ((gctUINT32) ((((1 ? 12:8) - (0 ? 12:8) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 12:8) - (0 ? 12:8) + 1))))))) << (0 ? 12:8)));
+
+            /* Stall from FE to PE. */
+            *buffer++
+                = ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 31:27) - (0 ? 31:27) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 31:27) - (0 ? 31:27) + 1))))))) << (0 ? 31:27))) | (((gctUINT32) (0x09 & ((gctUINT32) ((((1 ? 31:27) - (0 ? 31:27) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 31:27) - (0 ? 31:27) + 1))))))) << (0 ? 31:27)));
+
+            *buffer++
+                = ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 4:0) - (0 ? 4:0) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 4:0) - (0 ? 4:0) + 1))))))) << (0 ? 4:0))) | (((gctUINT32) (0x01 & ((gctUINT32) ((((1 ? 4:0) - (0 ? 4:0) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 4:0) - (0 ? 4:0) + 1))))))) << (0 ? 4:0)))
+                | ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 12:8) - (0 ? 12:8) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 12:8) - (0 ? 12:8) + 1))))))) << (0 ? 12:8))) | (((gctUINT32) (0x07 & ((gctUINT32) ((((1 ? 12:8) - (0 ? 12:8) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 12:8) - (0 ? 12:8) + 1))))))) << (0 ? 12:8)));
+        }
+
+        if (iCacheInvalidate)
+        {
+            /* Invalidate I$ after pipe is stalled */
+            *buffer++
+                = ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 31:27) - (0 ? 31:27) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 31:27) - (0 ? 31:27) + 1))))))) << (0 ? 31:27))) | (((gctUINT32) (0x01 & ((gctUINT32) ((((1 ? 31:27) - (0 ? 31:27) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 31:27) - (0 ? 31:27) + 1))))))) << (0 ? 31:27)))
+                | ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 25:16) - (0 ? 25:16) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 25:16) - (0 ? 25:16) + 1))))))) << (0 ? 25:16))) | (((gctUINT32) ((gctUINT32) (1) & ((gctUINT32) ((((1 ? 25:16) - (0 ? 25:16) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 25:16) - (0 ? 25:16) + 1))))))) << (0 ? 25:16)))
+                | ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 15:0) - (0 ? 15:0) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 15:0) - (0 ? 15:0) + 1))))))) << (0 ? 15:0))) | (((gctUINT32) ((gctUINT32) (0x0218) & ((gctUINT32) ((((1 ? 15:0) - (0 ? 15:0) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 15:0) - (0 ? 15:0) + 1))))))) << (0 ? 15:0)));
+
+            *buffer++
+                = ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 0:0) - (0 ? 0:0) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 0:0) - (0 ? 0:0) + 1))))))) << (0 ? 0:0))) | (((gctUINT32) (0x0 & ((gctUINT32) ((((1 ? 0:0) - (0 ? 0:0) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 0:0) - (0 ? 0:0) + 1))))))) << (0 ? 0:0)));
+
+            *buffer++
+                = ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 31:27) - (0 ? 31:27) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 31:27) - (0 ? 31:27) + 1))))))) << (0 ? 31:27))) | (((gctUINT32) (0x01 & ((gctUINT32) ((((1 ? 31:27) - (0 ? 31:27) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 31:27) - (0 ? 31:27) + 1))))))) << (0 ? 31:27)))
+                | ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 25:16) - (0 ? 25:16) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 25:16) - (0 ? 25:16) + 1))))))) << (0 ? 25:16))) | (((gctUINT32) ((gctUINT32) (1) & ((gctUINT32) ((((1 ? 25:16) - (0 ? 25:16) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 25:16) - (0 ? 25:16) + 1))))))) << (0 ? 25:16)))
+                | ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 15:0) - (0 ? 15:0) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 15:0) - (0 ? 15:0) + 1))))))) << (0 ? 15:0))) | (((gctUINT32) ((gctUINT32) (0x021A) & ((gctUINT32) ((((1 ? 15:0) - (0 ? 15:0) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 15:0) - (0 ? 15:0) + 1))))))) << (0 ? 15:0)));
+
+            *buffer++
+                = ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 0:0) - (0 ? 0:0) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 0:0) - (0 ? 0:0) + 1))))))) << (0 ? 0:0))) | (((gctUINT32) (0x1 & ((gctUINT32) ((((1 ? 0:0) - (0 ? 0:0) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 0:0) - (0 ? 0:0) + 1))))))) << (0 ? 0:0)))
+                | ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 4:4) - (0 ? 4:4) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 4:4) - (0 ? 4:4) + 1))))))) << (0 ? 4:4))) | (((gctUINT32) ((gctUINT32) (1) & ((gctUINT32) ((((1 ? 4:4) - (0 ? 4:4) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 4:4) - (0 ? 4:4) + 1))))))) << (0 ? 4:4)));
+
+            *buffer++
+                = ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 31:27) - (0 ? 31:27) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 31:27) - (0 ? 31:27) + 1))))))) << (0 ? 31:27))) | (((gctUINT32) (0x01 & ((gctUINT32) ((((1 ? 31:27) - (0 ? 31:27) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 31:27) - (0 ? 31:27) + 1))))))) << (0 ? 31:27)))
+                | ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 25:16) - (0 ? 25:16) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 25:16) - (0 ? 25:16) + 1))))))) << (0 ? 25:16))) | (((gctUINT32) ((gctUINT32) (1) & ((gctUINT32) ((((1 ? 25:16) - (0 ? 25:16) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 25:16) - (0 ? 25:16) + 1))))))) << (0 ? 25:16)))
+                | ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 15:0) - (0 ? 15:0) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 15:0) - (0 ? 15:0) + 1))))))) << (0 ? 15:0))) | (((gctUINT32) ((gctUINT32) (0x0218) & ((gctUINT32) ((((1 ? 15:0) - (0 ? 15:0) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 15:0) - (0 ? 15:0) + 1))))))) << (0 ? 15:0)));
+
+            *buffer++
+                = ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 0:0) - (0 ? 0:0) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 0:0) - (0 ? 0:0) + 1))))))) << (0 ? 0:0))) | (((gctUINT32) (0x1 & ((gctUINT32) ((((1 ? 0:0) - (0 ? 0:0) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 0:0) - (0 ? 0:0) + 1))))))) << (0 ? 0:0)));
+
+            *buffer++
+                = ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 31:27) - (0 ? 31:27) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 31:27) - (0 ? 31:27) + 1))))))) << (0 ? 31:27))) | (((gctUINT32) (0x01 & ((gctUINT32) ((((1 ? 31:27) - (0 ? 31:27) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 31:27) - (0 ? 31:27) + 1))))))) << (0 ? 31:27)))
+                | ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 25:16) - (0 ? 25:16) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 25:16) - (0 ? 25:16) + 1))))))) << (0 ? 25:16))) | (((gctUINT32) ((gctUINT32) (1) & ((gctUINT32) ((((1 ? 25:16) - (0 ? 25:16) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 25:16) - (0 ? 25:16) + 1))))))) << (0 ? 25:16)))
+                | ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 15:0) - (0 ? 15:0) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 15:0) - (0 ? 15:0) + 1))))))) << (0 ? 15:0))) | (((gctUINT32) ((gctUINT32) (0x021A) & ((gctUINT32) ((((1 ? 15:0) - (0 ? 15:0) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 15:0) - (0 ? 15:0) + 1))))))) << (0 ? 15:0)));
+
+            *buffer++
+                = ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 0:0) - (0 ? 0:0) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 0:0) - (0 ? 0:0) + 1))))))) << (0 ? 0:0))) | (((gctUINT32) (0x1 & ((gctUINT32) ((((1 ? 0:0) - (0 ? 0:0) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 0:0) - (0 ? 0:0) + 1))))))) << (0 ? 0:0)))
+                | ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 5:5) - (0 ? 5:5) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 5:5) - (0 ? 5:5) + 1))))))) << (0 ? 5:5))) | (((gctUINT32) ((gctUINT32) (1) & ((gctUINT32) ((((1 ? 5:5) - (0 ? 5:5) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 5:5) - (0 ? 5:5) + 1))))))) << (0 ? 5:5)));
+
+            /* Semaphore from FE to PE. */
+            *buffer++
+                = ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 31:27) - (0 ? 31:27) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 31:27) - (0 ? 31:27) + 1))))))) << (0 ? 31:27))) | (((gctUINT32) (0x01 & ((gctUINT32) ((((1 ? 31:27) - (0 ? 31:27) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 31:27) - (0 ? 31:27) + 1))))))) << (0 ? 31:27)))
+                | ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 25:16) - (0 ? 25:16) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 25:16) - (0 ? 25:16) + 1))))))) << (0 ? 25:16))) | (((gctUINT32) ((gctUINT32) (1) & ((gctUINT32) ((((1 ? 25:16) - (0 ? 25:16) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 25:16) - (0 ? 25:16) + 1))))))) << (0 ? 25:16)))
+                | ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 15:0) - (0 ? 15:0) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 15:0) - (0 ? 15:0) + 1))))))) << (0 ? 15:0))) | (((gctUINT32) ((gctUINT32) (0x0E02) & ((gctUINT32) ((((1 ? 15:0) - (0 ? 15:0) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 15:0) - (0 ? 15:0) + 1))))))) << (0 ? 15:0)));
+
+            *buffer++
+                = ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 4:0) - (0 ? 4:0) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 4:0) - (0 ? 4:0) + 1))))))) << (0 ? 4:0))) | (((gctUINT32) (0x01 & ((gctUINT32) ((((1 ? 4:0) - (0 ? 4:0) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 4:0) - (0 ? 4:0) + 1))))))) << (0 ? 4:0)))
+                | ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 12:8) - (0 ? 12:8) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 12:8) - (0 ? 12:8) + 1))))))) << (0 ? 12:8))) | (((gctUINT32) (0x07 & ((gctUINT32) ((((1 ? 12:8) - (0 ? 12:8) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 12:8) - (0 ? 12:8) + 1))))))) << (0 ? 12:8)));
+
+            /* Stall from FE to PE. */
+            *buffer++
+                = ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 31:27) - (0 ? 31:27) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 31:27) - (0 ? 31:27) + 1))))))) << (0 ? 31:27))) | (((gctUINT32) (0x09 & ((gctUINT32) ((((1 ? 31:27) - (0 ? 31:27) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 31:27) - (0 ? 31:27) + 1))))))) << (0 ? 31:27)));
+
+            *buffer++
+                = ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 4:0) - (0 ? 4:0) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 4:0) - (0 ? 4:0) + 1))))))) << (0 ? 4:0))) | (((gctUINT32) (0x01 & ((gctUINT32) ((((1 ? 4:0) - (0 ? 4:0) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 4:0) - (0 ? 4:0) + 1))))))) << (0 ? 4:0)))
+                | ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 12:8) - (0 ? 12:8) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 12:8) - (0 ? 12:8) + 1))))))) << (0 ? 12:8))) | (((gctUINT32) (0x07 & ((gctUINT32) ((((1 ? 12:8) - (0 ? 12:8) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 12:8) - (0 ? 12:8) + 1))))))) << (0 ? 12:8)));
+        }
+    }
+
+    /* Number of slots taken by flushing pipe. */
+    return flushSlots;
+}
+
+
+static gctUINT32
+_SwitchPipe(
+    IN gckCONTEXT Context,
+    IN gctUINT32 Index,
+    IN gcePIPE_SELECT Pipe
+    )
+{
+    gctUINT32 slots = 6;
+
+    if (Context->buffer != gcvNULL)
+    {
+        gctUINT32_PTR buffer;
+
+        /* Address correct index. */
+        buffer = Context->buffer->logical + Index;
+
+        /* LoadState(AQPipeSelect, 1), pipe. */
+        *buffer++
+            = ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 31:27) - (0 ? 31:27) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 31:27) - (0 ? 31:27) + 1))))))) << (0 ? 31:27))) | (((gctUINT32) (0x01 & ((gctUINT32) ((((1 ? 31:27) - (0 ? 31:27) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 31:27) - (0 ? 31:27) + 1))))))) << (0 ? 31:27)))
+            | ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 15:0) - (0 ? 15:0) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 15:0) - (0 ? 15:0) + 1))))))) << (0 ? 15:0))) | (((gctUINT32) ((gctUINT32) (0x0E00) & ((gctUINT32) ((((1 ? 15:0) - (0 ? 15:0) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 15:0) - (0 ? 15:0) + 1))))))) << (0 ? 15:0)))
+            | ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 25:16) - (0 ? 25:16) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 25:16) - (0 ? 25:16) + 1))))))) << (0 ? 25:16))) | (((gctUINT32) ((gctUINT32) (1) & ((gctUINT32) ((((1 ? 25:16) - (0 ? 25:16) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 25:16) - (0 ? 25:16) + 1))))))) << (0 ? 25:16)));
+
+        *buffer++
+            = (Pipe == gcvPIPE_2D)
+                ? 0x1
+                : 0x0;
+
+        /* Semaphore from FE to PE. */
+        *buffer++
+            = ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 31:27) - (0 ? 31:27) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 31:27) - (0 ? 31:27) + 1))))))) << (0 ? 31:27))) | (((gctUINT32) (0x01 & ((gctUINT32) ((((1 ? 31:27) - (0 ? 31:27) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 31:27) - (0 ? 31:27) + 1))))))) << (0 ? 31:27)))
+            | ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 25:16) - (0 ? 25:16) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 25:16) - (0 ? 25:16) + 1))))))) << (0 ? 25:16))) | (((gctUINT32) ((gctUINT32) (1) & ((gctUINT32) ((((1 ? 25:16) - (0 ? 25:16) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 25:16) - (0 ? 25:16) + 1))))))) << (0 ? 25:16)))
+            | ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 15:0) - (0 ? 15:0) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 15:0) - (0 ? 15:0) + 1))))))) << (0 ? 15:0))) | (((gctUINT32) ((gctUINT32) (0x0E02) & ((gctUINT32) ((((1 ? 15:0) - (0 ? 15:0) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 15:0) - (0 ? 15:0) + 1))))))) << (0 ? 15:0)));
+
+        *buffer++
+            = ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 4:0) - (0 ? 4:0) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 4:0) - (0 ? 4:0) + 1))))))) << (0 ? 4:0))) | (((gctUINT32) (0x01 & ((gctUINT32) ((((1 ? 4:0) - (0 ? 4:0) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 4:0) - (0 ? 4:0) + 1))))))) << (0 ? 4:0)))
+            | ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 12:8) - (0 ? 12:8) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 12:8) - (0 ? 12:8) + 1))))))) << (0 ? 12:8))) | (((gctUINT32) (0x07 & ((gctUINT32) ((((1 ? 12:8) - (0 ? 12:8) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 12:8) - (0 ? 12:8) + 1))))))) << (0 ? 12:8)));
+
+        /* Stall from FE to PE. */
+        *buffer++
+            = ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 31:27) - (0 ? 31:27) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 31:27) - (0 ? 31:27) + 1))))))) << (0 ? 31:27))) | (((gctUINT32) (0x09 & ((gctUINT32) ((((1 ? 31:27) - (0 ? 31:27) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 31:27) - (0 ? 31:27) + 1))))))) << (0 ? 31:27)));
+
+        *buffer++
+            = ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 4:0) - (0 ? 4:0) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 4:0) - (0 ? 4:0) + 1))))))) << (0 ? 4:0))) | (((gctUINT32) (0x01 & ((gctUINT32) ((((1 ? 4:0) - (0 ? 4:0) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 4:0) - (0 ? 4:0) + 1))))))) << (0 ? 4:0)))
+            | ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 12:8) - (0 ? 12:8) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 12:8) - (0 ? 12:8) + 1))))))) << (0 ? 12:8))) | (((gctUINT32) (0x07 & ((gctUINT32) ((((1 ? 12:8) - (0 ? 12:8) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 12:8) - (0 ? 12:8) + 1))))))) << (0 ? 12:8)));
+    }
+
+    Context->pipeSelectBytes = slots * gcmSIZEOF(gctUINT32);
+
+    return slots;
+}
+
+
+static gceSTATUS
+_InitializeContextBuffer(
+    IN gckCONTEXT Context
+    )
+{
+    gctUINT32_PTR buffer;
+    gctUINT32 index;
+
+
+    /* Reset the buffer index. */
+    index = 0;
+
+    /* Reset the last state address. */
+    Context->lastAddress = ~0U;
+
+    /* Get the buffer pointer. */
+    buffer = (Context->buffer == gcvNULL)
+        ? gcvNULL
+        : Context->buffer->logical;
+
+
+    /**************************************************************************/
+    /* Build 2D states. *******************************************************/
+
+
+
+    /**************************************************************************/
+    /* Link to another address. ***********************************************/
+
+    Context->linkIndex3D = (gctUINT)index;
+
+    if (buffer != gcvNULL)
+    {
+        buffer[index + 0]
+            = ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 31:27) - (0 ? 31:27) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 31:27) - (0 ? 31:27) + 1))))))) << (0 ? 31:27))) | (((gctUINT32) (0x08 & ((gctUINT32) ((((1 ? 31:27) - (0 ? 31:27) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 31:27) - (0 ? 31:27) + 1))))))) << (0 ? 31:27)))
+            | ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 15:0) - (0 ? 15:0) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 15:0) - (0 ? 15:0) + 1))))))) << (0 ? 15:0))) | (((gctUINT32) ((gctUINT32) (0) & ((gctUINT32) ((((1 ? 15:0) - (0 ? 15:0) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 15:0) - (0 ? 15:0) + 1))))))) << (0 ? 15:0)));
+
+        buffer[index + 1]
+            = 0;
+    }
+
+    index += 2;
+
+    /* Store the end of the context buffer. */
+    Context->bufferSize = index * gcmSIZEOF(gctUINT32);
+
+
+    /**************************************************************************/
+    /* Pipe switch for the case where neither 2D nor 3D are used. *************/
+
+    /* Store the 3D entry index. */
+    Context->entryOffsetXDFrom2D = (gctUINT)index * gcmSIZEOF(gctUINT32);
+
+    /* Flush 2D pipe. */
+    index += _FlushPipe(Context, index, gcvPIPE_2D);
+
+    /* Switch to 3D pipe. */
+    index += _SwitchPipe(Context, index, gcvPIPE_3D);
+
+    /* Store the location of the link. */
+    Context->linkIndexXD = (gctUINT)index;
+
+    if (buffer != gcvNULL)
+    {
+        buffer[index + 0]
+            = ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 31:27) - (0 ? 31:27) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 31:27) - (0 ? 31:27) + 1))))))) << (0 ? 31:27))) | (((gctUINT32) (0x08 & ((gctUINT32) ((((1 ? 31:27) - (0 ? 31:27) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 31:27) - (0 ? 31:27) + 1))))))) << (0 ? 31:27)))
+            | ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 15:0) - (0 ? 15:0) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 15:0) - (0 ? 15:0) + 1))))))) << (0 ? 15:0))) | (((gctUINT32) ((gctUINT32) (0) & ((gctUINT32) ((((1 ? 15:0) - (0 ? 15:0) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 15:0) - (0 ? 15:0) + 1))))))) << (0 ? 15:0)));
+
+        buffer[index + 1]
+            = 0;
+    }
+
+    index += 2;
+
+
+    /**************************************************************************/
+    /* Save size for buffer. **************************************************/
+
+    Context->totalSize = index * gcmSIZEOF(gctUINT32);
+
+
+    /* Success. */
+    return gcvSTATUS_OK;
+}
+
+static gceSTATUS
+_DestroyContext(
+    IN gckCONTEXT Context
+    )
+{
+    gceSTATUS status = gcvSTATUS_OK;
+
+    if (Context != gcvNULL)
+    {
+        gcsCONTEXT_PTR bufferHead;
+
+        /* Free context buffers. */
+        for (bufferHead = Context->buffer; Context->buffer != gcvNULL;)
+        {
+            /* Get a shortcut to the current buffer. */
+            gcsCONTEXT_PTR buffer = Context->buffer;
+
+            /* Get the next buffer. */
+            gcsCONTEXT_PTR next = buffer->next;
+
+            /* Last item? */
+            if (next == bufferHead)
+            {
+                next = gcvNULL;
+            }
+
+            /* Destroy the signal. */
+            if (buffer->signal != gcvNULL)
+            {
+                gcmkONERROR(gckOS_DestroySignal(
+                    Context->os, buffer->signal
+                    ));
+
+                buffer->signal = gcvNULL;
+            }
+
+            /* Free state delta map. */
+            if (buffer->logical != gcvNULL)
+            {
+                if (Context->hardware->kernel->virtualCommandBuffer)
+                {
+                    gcmkONERROR(gckEVENT_DestroyVirtualCommandBuffer(
+                        Context->hardware->kernel->eventObj,
+                        Context->totalSize,
+                        buffer->physical,
+                        buffer->logical,
+                        gcvKERNEL_PIXEL
+                        ));
+                }
+                else
+                {
+                    gcmkONERROR(gckEVENT_FreeContiguousMemory(
+                        Context->hardware->kernel->eventObj,
+                        Context->totalSize,
+                        buffer->physical,
+                        buffer->logical,
+                        gcvKERNEL_PIXEL
+                        ));
+                }
+
+                buffer->logical = gcvNULL;
+            }
+
+            /* Free context buffer. */
+            gcmkONERROR(gcmkOS_SAFE_FREE(Context->os, buffer));
+
+            /* Remove from the list. */
+            Context->buffer = next;
+        }
+
+#if gcdSECURE_USER
+        /* Free the hint array. */
+        if (Context->hint != gcvNULL)
+        {
+            gcmkONERROR(gcmkOS_SAFE_FREE(Context->os, Context->hint));
+        }
+#endif
+        /* Free record array copy. */
+#if REMOVE_DUPLICATED_COPY_FROM_USER
+        if (Context->recordArrayMap != gcvNULL)
+        {
+            gcsRECORD_ARRAY_MAP_PTR map = Context->recordArrayMap;
+
+            do
+            {
+                /* Free record array. */
+                gcmkONERROR(gcmkOS_SAFE_FREE(Context->os, map->kData));
+                map = map->next;
+            }
+            while (map != Context->recordArrayMap);
+
+            gcmkONERROR(gcmkOS_SAFE_FREE(Context->os, Context->recordArrayMap));
+        }
+#else
+        if (Context->recordArray != gcvNULL)
+        {
+            gcmkONERROR(gcmkOS_SAFE_FREE(Context->os, Context->recordArray));
+        }
+#endif
+
+        /* Mark the gckCONTEXT object as unknown. */
+        Context->object.type = gcvOBJ_UNKNOWN;
+
+        /* Free the gckCONTEXT object. */
+        gcmkONERROR(gcmkOS_SAFE_FREE(Context->os, Context));
+    }
+
+OnError:
+    return status;
+}
+
+
+/******************************************************************************\
+**************************** Context Management API ****************************
+\******************************************************************************/
+
+/******************************************************************************\
+**
+**  gckCONTEXT_Construct
+**
+**  Construct a new gckCONTEXT object.
+**
+**  INPUT:
+**
+**      gckOS Os
+**          Pointer to gckOS object.
+**
+**      gctUINT32 ProcessID
+**          Current process ID.
+**
+**      gckHARDWARE Hardware
+**          Pointer to gckHARDWARE object.
+**
+**  OUTPUT:
+**
+**      gckCONTEXT * Context
+**          Pointer to a variable thet will receive the gckCONTEXT object
+**          pointer.
+*/
+gceSTATUS
+gckCONTEXT_Construct(
+    IN gckOS Os,
+    IN gckHARDWARE Hardware,
+    IN gctUINT32 ProcessID,
+    OUT gckCONTEXT * Context
+    )
+{
+    gceSTATUS status;
+    gckCONTEXT context = gcvNULL;
+    gctUINT32 allocationSize;
+    gctUINT i;
+    gctPOINTER pointer = gcvNULL;
+    gctUINT32 address;
+
+    gcmkHEADER_ARG("Os=0x%08X Hardware=0x%08X", Os, Hardware);
+
+    /* Verify the arguments. */
+    gcmkVERIFY_OBJECT(Os, gcvOBJ_OS);
+    gcmkVERIFY_ARGUMENT(Context != gcvNULL);
+
+
+    /**************************************************************************/
+    /* Allocate and initialize basic fields of gckCONTEXT. ********************/
+
+    /* The context object size. */
+    allocationSize = gcmSIZEOF(struct _gckCONTEXT);
+
+    /* Allocate the object. */
+    gcmkONERROR(gckOS_Allocate(
+        Os, allocationSize, &pointer
+        ));
+
+    context = pointer;
+
+    /* Reset the entire object. */
+    gcmkONERROR(gckOS_ZeroMemory(context, allocationSize));
+
+    /* Initialize the gckCONTEXT object. */
+    context->object.type = gcvOBJ_CONTEXT;
+    context->os          = Os;
+    context->hardware    = Hardware;
+
+
+    context->entryPipe = gcvPIPE_2D;
+    context->exitPipe  = gcvPIPE_2D;
+
+    /* Get the command buffer requirements. */
+    gcmkONERROR(gckHARDWARE_QueryCommandBuffer(
+        Hardware,
+        &context->alignment,
+        &context->reservedHead,
+        &context->reservedTail
+        ));
+
+    /* Mark the context as dirty to force loading of the entire state table
+       the first time. */
+    context->dirty = gcvTRUE;
+
+
+    /**************************************************************************/
+    /* Get the size of the context buffer. ************************************/
+
+    gcmkONERROR(_InitializeContextBuffer(context));
+
+
+    /**************************************************************************/
+    /* Compute the size of the record array. **********************************/
+
+    context->recordArraySize
+#ifdef DISABLE_RECORD_ARRAY_SIZE_OPTIMIZATION
+        = gcmSIZEOF(gcsSTATE_DELTA_RECORD) * (gctUINT)context->maxState;
+#else
+        = gcmSIZEOF(gcsSTATE_DELTA_RECORD) * (gctUINT)context->numStates;
+#endif
+
+
+    if (context->maxState > 0)
+    {
+        /**************************************************************************/
+        /* Allocate and reset the state mapping table. ****************************/
+        if (context->hardware->kernel->command->stateMap == gcvNULL)
+        {
+            /* Allocate the state mapping table. */
+            gcmkONERROR(gckOS_Allocate(
+                Os,
+                gcmSIZEOF(gcsSTATE_MAP) * context->maxState,
+                &pointer
+                ));
+
+            context->map = pointer;
+
+            /* Zero the state mapping table. */
+            gcmkONERROR(gckOS_ZeroMemory(
+                context->map, gcmSIZEOF(gcsSTATE_MAP) * context->maxState
+                ));
+
+            context->hardware->kernel->command->stateMap = pointer;
+        }
+        else
+        {
+            context->map = context->hardware->kernel->command->stateMap;
+        }
+
+        /**************************************************************************/
+        /* Allocate the hint array. ***********************************************/
+
+#if gcdSECURE_USER
+        /* Allocate hints. */
+        gcmkONERROR(gckOS_Allocate(
+            Os,
+            gcmSIZEOF(gctBOOL) * context->maxState,
+            &pointer
+            ));
+
+        context->hint = pointer;
+#endif
+    }
+
+    /**************************************************************************/
+    /* Allocate the context and state delta buffers. **************************/
+
+    for (i = 0; i < gcdCONTEXT_BUFFER_COUNT; i += 1)
+    {
+        /* Allocate a context buffer. */
+        gcsCONTEXT_PTR buffer;
+
+        gctSIZE_T totalSize = context->totalSize;
+
+        /* Allocate the context buffer structure. */
+        gcmkONERROR(gckOS_Allocate(
+            Os,
+            gcmSIZEOF(gcsCONTEXT),
+            &pointer
+            ));
+
+        buffer = pointer;
+
+        /* Reset the context buffer structure. */
+        gcmkVERIFY_OK(gckOS_ZeroMemory(
+            buffer, gcmSIZEOF(gcsCONTEXT)
+            ));
+
+        /* Append to the list. */
+        if (context->buffer == gcvNULL)
+        {
+            buffer->next    = buffer;
+            context->buffer = buffer;
+        }
+        else
+        {
+            buffer->next          = context->buffer->next;
+            context->buffer->next = buffer;
+        }
+
+        /* Set the number of delta in the order of creation. */
+#if gcmIS_DEBUG(gcdDEBUG_CODE)
+        buffer->num = i;
+#endif
+
+        /* Create the busy signal. */
+        gcmkONERROR(gckOS_CreateSignal(
+            Os, gcvFALSE, &buffer->signal
+            ));
+
+        /* Set the signal, buffer is currently not busy. */
+        gcmkONERROR(gckOS_Signal(
+            Os, buffer->signal, gcvTRUE
+            ));
+
+        /* Create a new physical context buffer. */
+        if (context->hardware->kernel->virtualCommandBuffer)
+        {
+            gcmkONERROR(gckKERNEL_AllocateVirtualCommandBuffer(
+                context->hardware->kernel,
+                gcvFALSE,
+                &totalSize,
+                &buffer->physical,
+                &pointer
+                ));
+
+            gcmkONERROR(gckKERNEL_GetGPUAddress(
+                context->hardware->kernel,
+                pointer,
+                gcvFALSE,
+                buffer->physical,
+                &address
+                ));
+        }
+        else
+        {
+            gcmkONERROR(gckOS_AllocateContiguous(
+                Os,
+                gcvFALSE,
+                &totalSize,
+                &buffer->physical,
+                &pointer
+                ));
+
+            gcmkONERROR(gckHARDWARE_ConvertLogical(
+                context->hardware,
+                pointer,
+                gcvFALSE,
+                &address
+                ));
+        }
+
+        buffer->logical = pointer;
+        buffer->address = address;
+
+        /* Set gckEVENT object pointer. */
+        buffer->eventObj = Hardware->kernel->eventObj;
+
+        /* Set the pointers to the LINK commands. */
+        if (context->linkIndex2D != 0)
+        {
+            buffer->link2D = &buffer->logical[context->linkIndex2D];
+        }
+
+        if (context->linkIndex3D != 0)
+        {
+            buffer->link3D = &buffer->logical[context->linkIndex3D];
+        }
+
+        if (context->linkIndexXD != 0)
+        {
+            gctPOINTER xdLink;
+            gctUINT32 xdEntryAddress;
+            gctUINT32 xdEntrySize;
+            gctUINT32 linkBytes;
+
+            /* Determine LINK parameters. */
+            xdLink
+                = &buffer->logical[context->linkIndexXD];
+
+            xdEntryAddress
+                = buffer->address
+                + context->entryOffsetXDFrom3D;
+
+            xdEntrySize
+                = context->bufferSize
+                - context->entryOffsetXDFrom3D;
+
+            /* Query LINK size. */
+            gcmkONERROR(gckHARDWARE_Link(
+                Hardware, gcvNULL, 0, 0, &linkBytes, gcvNULL, gcvNULL
+                ));
+
+            /* Generate a LINK. */
+            gcmkONERROR(gckHARDWARE_Link(
+                Hardware,
+                xdLink,
+                xdEntryAddress,
+                xdEntrySize,
+                &linkBytes,
+                gcvNULL,
+                gcvNULL
+                ));
+        }
+    }
+
+
+    /**************************************************************************/
+    /* Initialize the context buffers. ****************************************/
+
+    /* Initialize the current context buffer. */
+    gcmkONERROR(_InitializeContextBuffer(context));
+
+    /* Make all created contexts equal. */
+    {
+        gcsCONTEXT_PTR currContext, tempContext;
+
+        /* Set the current context buffer. */
+        currContext = context->buffer;
+
+        /* Get the next context buffer. */
+        tempContext = currContext->next;
+
+        /* Loop through all buffers. */
+        while (tempContext != currContext)
+        {
+            if (tempContext == gcvNULL)
+            {
+                gcmkONERROR(gcvSTATUS_NOT_FOUND);
+            }
+
+            /* Copy the current context. */
+            gckOS_MemCopy(
+                tempContext->logical,
+                currContext->logical,
+                context->totalSize
+                );
+
+            /* Get the next context buffer. */
+            tempContext = tempContext->next;
+        }
+    }
+
+    /* Return pointer to the gckCONTEXT object. */
+    *Context = context;
+
+    /* Success. */
+    gcmkFOOTER_ARG("*Context=0x%08X", *Context);
+    return gcvSTATUS_OK;
+
+OnError:
+    /* Roll back on error. */
+    gcmkVERIFY_OK(_DestroyContext(context));
+
+    /* Return the status. */
+    gcmkFOOTER();
+    return status;
+}
+
+/******************************************************************************\
+**
+**  gckCONTEXT_Destroy
+**
+**  Destroy a gckCONTEXT object.
+**
+**  INPUT:
+**
+**      gckCONTEXT Context
+**          Pointer to an gckCONTEXT object.
+**
+**  OUTPUT:
+**
+**      Nothing.
+*/
+gceSTATUS
+gckCONTEXT_Destroy(
+    IN gckCONTEXT Context
+    )
+{
+    gceSTATUS status;
+
+    gcmkHEADER_ARG("Context=0x%08X", Context);
+
+    /* Verify the arguments. */
+    gcmkVERIFY_OBJECT(Context, gcvOBJ_CONTEXT);
+
+    /* Destroy the context and all related objects. */
+    status = _DestroyContext(Context);
+
+    /* Success. */
+    gcmkFOOTER_NO();
+    return status;
+}
+
+/******************************************************************************\
+**
+**  gckCONTEXT_Update
+**
+**  Merge all pending state delta buffers into the current context buffer.
+**
+**  INPUT:
+**
+**      gckCONTEXT Context
+**          Pointer to an gckCONTEXT object.
+**
+**      gctUINT32 ProcessID
+**          Current process ID.
+**
+**      gcsSTATE_DELTA_PTR StateDelta
+**          Pointer to the state delta.
+**
+**  OUTPUT:
+**
+**      Nothing.
+*/
+gceSTATUS
+gckCONTEXT_Update(
+    IN gckCONTEXT Context,
+    IN gctUINT32 ProcessID,
+    IN gcsSTATE_DELTA_PTR StateDelta
+    )
+{
+    return gcvSTATUS_OK;
+}
+
+gceSTATUS
+gckCONTEXT_MapBuffer(
+    IN gckCONTEXT Context,
+    OUT gctUINT32 *Physicals,
+    OUT gctUINT64 *Logicals,
+    OUT gctUINT32 *Bytes
+    )
+{
+    gceSTATUS status;
+    int i = 0;
+    gctSIZE_T pageCount;
+    gckVIRTUAL_COMMAND_BUFFER_PTR commandBuffer;
+    gckKERNEL kernel = Context->hardware->kernel;
+    gctPOINTER logical;
+    gctPHYS_ADDR physical;
+
+    gcsCONTEXT_PTR buffer;
+
+    gcmkHEADER();
+
+    gcmkVERIFY_OBJECT(Context, gcvOBJ_CONTEXT);
+
+    buffer = Context->buffer;
+
+    for (i = 0; i < gcdCONTEXT_BUFFER_COUNT; i++)
+    {
+        if (kernel->virtualCommandBuffer)
+        {
+            commandBuffer = (gckVIRTUAL_COMMAND_BUFFER_PTR)buffer->physical;
+            physical = commandBuffer->physical;
+
+            gcmkONERROR(gckOS_CreateUserVirtualMapping(
+                kernel->os,
+                physical,
+                Context->totalSize,
+                &logical,
+                &pageCount));
+        }
+        else
+        {
+            physical = buffer->physical;
+
+            gcmkONERROR(gckOS_MapMemory(
+                kernel->os,
+                physical,
+                Context->totalSize,
+                &logical));
+        }
+
+        Physicals[i] = gcmPTR_TO_NAME(physical);
+
+        Logicals[i] = gcmPTR_TO_UINT64(logical);
+
+        buffer = buffer->next;
+    }
+
+    *Bytes = (gctUINT)Context->totalSize;
+
+    gcmkFOOTER_NO();
+    return gcvSTATUS_OK;
+
+OnError:
+    gcmkFOOTER();
+    return status;
+}
+
diff --git a/src/hal/kernel/arch/gc_hal_kernel_context.h b/src/hal/kernel/arch/gc_hal_kernel_context.h
new file mode 100755
index 0000000..b02878b
--- /dev/null
+++ b/src/hal/kernel/arch/gc_hal_kernel_context.h
@@ -0,0 +1,247 @@
+/****************************************************************************
+*
+*    The MIT License (MIT)
+*
+*    Copyright (c) 2014 Vivante Corporation
+*
+*    Permission is hereby granted, free of charge, to any person obtaining a
+*    copy of this software and associated documentation files (the "Software"),
+*    to deal in the Software without restriction, including without limitation
+*    the rights to use, copy, modify, merge, publish, distribute, sublicense,
+*    and/or sell copies of the Software, and to permit persons to whom the
+*    Software is furnished to do so, subject to the following conditions:
+*
+*    The above copyright notice and this permission notice shall be included in
+*    all copies or substantial portions of the Software.
+*
+*    THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+*    IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+*    FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+*    AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+*    LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+*    FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+*    DEALINGS IN THE SOFTWARE.
+*
+*****************************************************************************
+*
+*    The GPL License (GPL)
+*
+*    Copyright (C) 2014  Vivante Corporation
+*
+*    This program is free software; you can redistribute it and/or
+*    modify it under the terms of the GNU General Public License
+*    as published by the Free Software Foundation; either version 2
+*    of the License, or (at your option) any later version.
+*
+*    This program is distributed in the hope that it will be useful,
+*    but WITHOUT ANY WARRANTY; without even the implied warranty of
+*    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+*    GNU General Public License for more details.
+*
+*    You should have received a copy of the GNU General Public License
+*    along with this program; if not, write to the Free Software Foundation,
+*    Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+*
+*****************************************************************************
+*
+*    Note: This software is released under dual MIT and GPL licenses. A
+*    recipient may use this file under the terms of either the MIT license or
+*    GPL License. If you wish to use only one license not the other, you can
+*    indicate your decision by deleting one of the above license notices in your
+*    version of this file.
+*
+*****************************************************************************/
+
+
+#ifndef __gc_hal_kernel_context_h_
+#define __gc_hal_kernel_context_h_
+
+#include "gc_hal_kernel_buffer.h"
+
+/* Exprimental optimization. */
+#define REMOVE_DUPLICATED_COPY_FROM_USER 1
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/* Maps state locations within the context buffer. */
+typedef struct _gcsSTATE_MAP * gcsSTATE_MAP_PTR;
+typedef struct _gcsSTATE_MAP
+{
+    /* Index of the state in the context buffer. */
+    gctUINT                     index;
+
+    /* State mask. */
+    gctUINT32                   mask;
+}
+gcsSTATE_MAP;
+
+/* Context buffer. */
+typedef struct _gcsCONTEXT * gcsCONTEXT_PTR;
+typedef struct _gcsCONTEXT
+{
+    /* For debugging: the number of context buffer in the order of creation. */
+#if gcmIS_DEBUG(gcdDEBUG_CODE)
+    gctUINT                     num;
+#endif
+
+    /* Pointer to gckEVENT object. */
+    gckEVENT                    eventObj;
+
+    /* Context busy signal. */
+    gctSIGNAL                   signal;
+
+    /* Physical address of the context buffer. */
+    gctPHYS_ADDR                physical;
+
+    /* Logical address of the context buffer. */
+    gctUINT32_PTR               logical;
+
+    /* Hardware address of the context buffer. */
+    gctUINT32                   address;
+
+    /* Pointer to the LINK commands. */
+    gctPOINTER                  link2D;
+    gctPOINTER                  link3D;
+
+    /* The number of pending state deltas. */
+    gctUINT                     deltaCount;
+
+    /* Pointer to the first delta to be applied. */
+    gcsSTATE_DELTA_PTR          delta;
+
+    /* Next context buffer. */
+    gcsCONTEXT_PTR              next;
+}
+gcsCONTEXT;
+
+typedef struct _gcsRECORD_ARRAY_MAP * gcsRECORD_ARRAY_MAP_PTR;
+struct  _gcsRECORD_ARRAY_MAP
+{
+    /* User pointer key. */
+    gctUINT64                   key;
+
+    /* Kernel memory buffer. */
+    gcsSTATE_DELTA_RECORD_PTR   kData;
+
+    /* Next map. */
+    gcsRECORD_ARRAY_MAP_PTR     next;
+
+};
+
+#define USE_SW_RESET 1
+
+/* gckCONTEXT structure that hold the current context. */
+struct _gckCONTEXT
+{
+    /* Object. */
+    gcsOBJECT                   object;
+
+    /* Pointer to gckOS object. */
+    gckOS                       os;
+
+    /* Pointer to gckHARDWARE object. */
+    gckHARDWARE                 hardware;
+
+    /* Command buffer alignment. */
+    gctUINT32                   alignment;
+    gctUINT32                   reservedHead;
+    gctUINT32                   reservedTail;
+
+    /* Context buffer metrics. */
+    gctSIZE_T                   maxState;
+    gctUINT32                   numStates;
+    gctUINT32                   totalSize;
+    gctUINT32                   bufferSize;
+    gctUINT32                   linkIndex2D;
+    gctUINT32                   linkIndex3D;
+    gctUINT32                   linkIndexXD;
+    gctUINT32                   entryOffset3D;
+    gctUINT32                   entryOffsetXDFrom2D;
+    gctUINT32                   entryOffsetXDFrom3D;
+
+    /* Dirty flags. */
+    gctBOOL                     dirty;
+    gctBOOL                     dirty2D;
+    gctBOOL                     dirty3D;
+    gcsCONTEXT_PTR              dirtyBuffer;
+
+    /* State mapping. */
+    gcsSTATE_MAP_PTR            map;
+
+    /* List of context buffers. */
+    gcsCONTEXT_PTR              buffer;
+
+    /* A copy of the user record array. */
+    gctUINT                     recordArraySize;
+#if REMOVE_DUPLICATED_COPY_FROM_USER
+    gcsRECORD_ARRAY_MAP_PTR     recordArrayMap;
+#else
+    gcsSTATE_DELTA_RECORD_PTR   recordArray;
+#endif
+
+    /* Requested pipe select for context. */
+    gcePIPE_SELECT              entryPipe;
+    gcePIPE_SELECT              exitPipe;
+
+    /* Variables used for building state buffer. */
+    gctUINT32                   lastAddress;
+    gctSIZE_T                   lastSize;
+    gctUINT32                   lastIndex;
+    gctBOOL                     lastFixed;
+
+    gctUINT32                   pipeSelectBytes;
+
+    /* Hint array. */
+#if gcdSECURE_USER
+    gctBOOL_PTR                 hint;
+#endif
+
+#if VIVANTE_PROFILER_CONTEXT
+    gcsPROFILER_COUNTERS        latestProfiler;
+    gcsPROFILER_COUNTERS        histroyProfiler;
+
+#if USE_SW_RESET
+    /* RA */
+    gctUINT32                   prevRaValidPixelCount;
+    gctUINT32                   prevRaTotalQuadCount;
+    gctUINT32                   prevRaValidQuadCountAfterEarlyZ;
+    gctUINT32                   prevRaTotalPrimitiveCount;
+    gctUINT32                   prevRaPipeCacheMissCounter;
+    gctUINT32                   prevRaPrefetchCacheMissCounter;
+
+    /* PE */
+    gctUINT32                   prevPePixelCountKilledByColorPipe;
+    gctUINT32                   prevPePixelCountKilledByDepthPipe;
+    gctUINT32                   prevPePixelCountDrawnByColorPipe;
+    gctUINT32                   prevPePixelCountDrawnByDepthPipe;
+
+    /* PA */
+    gctUINT32                   prevPaInputVtxCounter;
+    gctUINT32                   prevPaInputPrimCounter;
+    gctUINT32                   prevPaOutputPrimCounter;
+    gctUINT32                   prevPaDepthClippedCounter;
+    gctUINT32                   prevPaTrivialRejectedCounter;
+    gctUINT32                   prevPaCulledCounter;
+
+    /* SH */
+    gctUINT32                   prevVSInstCount;
+    gctUINT32                   prevVSBranchInstCount;
+    gctUINT32                   prevVSTexInstCount;
+    gctUINT32                   prevVSVertexCount;
+    gctUINT32                   prevPSInstCount;
+    gctUINT32                   prevPSBranchInstCount;
+    gctUINT32                   prevPSTexInstCount;
+    gctUINT32                   prevPSPixelCount;
+#endif
+
+#endif
+};
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* __gc_hal_kernel_context_h_ */
+
diff --git a/src/hal/kernel/arch/gc_hal_kernel_hardware.c b/src/hal/kernel/arch/gc_hal_kernel_hardware.c
new file mode 100755
index 0000000..10ea1e8
--- /dev/null
+++ b/src/hal/kernel/arch/gc_hal_kernel_hardware.c
@@ -0,0 +1,7894 @@
+/****************************************************************************
+*
+*    The MIT License (MIT)
+*
+*    Copyright (c) 2014 Vivante Corporation
+*
+*    Permission is hereby granted, free of charge, to any person obtaining a
+*    copy of this software and associated documentation files (the "Software"),
+*    to deal in the Software without restriction, including without limitation
+*    the rights to use, copy, modify, merge, publish, distribute, sublicense,
+*    and/or sell copies of the Software, and to permit persons to whom the
+*    Software is furnished to do so, subject to the following conditions:
+*
+*    The above copyright notice and this permission notice shall be included in
+*    all copies or substantial portions of the Software.
+*
+*    THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+*    IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+*    FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+*    AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+*    LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+*    FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+*    DEALINGS IN THE SOFTWARE.
+*
+*****************************************************************************
+*
+*    The GPL License (GPL)
+*
+*    Copyright (C) 2014  Vivante Corporation
+*
+*    This program is free software; you can redistribute it and/or
+*    modify it under the terms of the GNU General Public License
+*    as published by the Free Software Foundation; either version 2
+*    of the License, or (at your option) any later version.
+*
+*    This program is distributed in the hope that it will be useful,
+*    but WITHOUT ANY WARRANTY; without even the implied warranty of
+*    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+*    GNU General Public License for more details.
+*
+*    You should have received a copy of the GNU General Public License
+*    along with this program; if not, write to the Free Software Foundation,
+*    Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+*
+*****************************************************************************
+*
+*    Note: This software is released under dual MIT and GPL licenses. A
+*    recipient may use this file under the terms of either the MIT license or
+*    GPL License. If you wish to use only one license not the other, you can
+*    indicate your decision by deleting one of the above license notices in your
+*    version of this file.
+*
+*****************************************************************************/
+
+
+#include "gc_hal.h"
+#include "gc_hal_kernel.h"
+#if VIVANTE_PROFILER_CONTEXT
+#include "gc_hal_kernel_context.h"
+#endif
+
+#define gcdDISABLE_FE_L2    1
+
+#define _GC_OBJ_ZONE    gcvZONE_HARDWARE
+
+#define gcmSEMAPHORESTALL(buffer) \
+        do \
+        { \
+            /* Arm the PE-FE Semaphore. */ \
+            *buffer++ \
+                = gcmSETFIELDVALUE(0, AQ_COMMAND_LOAD_STATE_COMMAND, OPCODE, LOAD_STATE) \
+                | gcmSETFIELD     (0, AQ_COMMAND_LOAD_STATE_COMMAND, COUNT, 1) \
+                | gcmSETFIELD     (0, AQ_COMMAND_LOAD_STATE_COMMAND, ADDRESS, 0x0E02); \
+            \
+            *buffer++ \
+                = gcmSETFIELDVALUE(0, AQ_SEMAPHORE, SOURCE, FRONT_END) \
+                | gcmSETFIELDVALUE(0, AQ_SEMAPHORE, DESTINATION, PIXEL_ENGINE);\
+            \
+            /* STALL FE until PE is done flushing. */ \
+            *buffer++ \
+                = gcmSETFIELDVALUE(0, STALL_COMMAND, OPCODE, STALL); \
+            \
+            *buffer++ \
+                = gcmSETFIELDVALUE(0, STALL_STALL, SOURCE, FRONT_END) \
+                | gcmSETFIELDVALUE(0, STALL_STALL, DESTINATION, PIXEL_ENGINE); \
+        } while(0)
+
+typedef struct _gcsiDEBUG_REGISTERS * gcsiDEBUG_REGISTERS_PTR;
+typedef struct _gcsiDEBUG_REGISTERS
+{
+    gctSTRING       module;
+    gctUINT         index;
+    gctUINT         shift;
+    gctUINT         data;
+    gctUINT         count;
+    gctUINT32       signature;
+}
+gcsiDEBUG_REGISTERS;
+
+/******************************************************************************\
+********************************* Support Code *********************************
+\******************************************************************************/
+static gctBOOL
+_IsHardwareMatch(
+    IN gckHARDWARE Hardware,
+    IN gctINT32 ChipModel,
+    IN gctUINT32 ChipRevision
+    )
+{
+    return ((Hardware->identity.chipModel == ChipModel) &&
+            (Hardware->identity.chipRevision == ChipRevision));
+}
+
+static gceSTATUS
+_ResetGPU(
+    IN gckHARDWARE Hardware,
+    IN gckOS Os,
+    IN gceCORE Core
+    );
+
+static gceSTATUS
+_IdentifyHardware(
+    IN gckOS Os,
+    IN gceCORE Core,
+    OUT gcsHAL_QUERY_CHIP_IDENTITY_PTR Identity
+    )
+{
+    gceSTATUS status;
+
+    gctUINT32 chipIdentity;
+
+    gctUINT32 streamCount = 0;
+    gctUINT32 registerMax = 0;
+    gctUINT32 threadCount = 0;
+    gctUINT32 shaderCoreCount = 0;
+    gctUINT32 vertexCacheSize = 0;
+    gctUINT32 vertexOutputBufferSize = 0;
+    gctUINT32 pixelPipes = 0;
+    gctUINT32 instructionCount = 0;
+    gctUINT32 numConstants = 0;
+    gctUINT32 bufferSize = 0;
+    gctUINT32 varyingsCount = 0;
+    gctUINT32 debugControl0 = 0;
+
+    gcmkHEADER_ARG("Os=0x%x", Os);
+
+    /***************************************************************************
+    ** Get chip ID and revision.
+    */
+
+    /* Read chip identity register. */
+    gcmkONERROR(
+        gckOS_ReadRegisterEx(Os, Core,
+                             0x00018,
+                             &chipIdentity));
+
+    /* Special case for older graphic cores. */
+    if (((((gctUINT32) (chipIdentity)) >> (0 ? 31:24) & ((gctUINT32) ((((1 ? 31:24) - (0 ? 31:24) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 31:24) - (0 ? 31:24) + 1)))))) == (0x01 & ((gctUINT32) ((((1 ? 31:24) - (0 ? 31:24) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 31:24) - (0 ? 31:24) + 1))))))))
+    {
+        Identity->chipModel    = gcv500;
+        Identity->chipRevision = (((((gctUINT32) (chipIdentity)) >> (0 ? 15:12)) & ((gctUINT32) ((((1 ? 15:12) - (0 ? 15:12) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 15:12) - (0 ? 15:12) + 1)))))) );
+    }
+
+    else
+    {
+        /* Read chip identity register. */
+        gcmkONERROR(
+            gckOS_ReadRegisterEx(Os, Core,
+                                 0x00020,
+                                 (gctUINT32_PTR) &Identity->chipModel));
+
+        if (((Identity->chipModel & 0xFF00) == 0x0400)
+          && (Identity->chipModel != 0x0420)
+          && (Identity->chipModel != 0x0428))
+        {
+            Identity->chipModel = (gceCHIPMODEL) (Identity->chipModel & 0x0400);
+        }
+
+        /* Read CHIP_REV register. */
+        gcmkONERROR(
+            gckOS_ReadRegisterEx(Os, Core,
+                                 0x00024,
+                                 &Identity->chipRevision));
+
+        if ((Identity->chipModel == gcv2000) && (Identity->chipRevision & 0xffff0000) == 0xffff0000)
+        {
+            Identity->chipModel = gcv3000;
+            Identity->chipRevision &= 0xffff;
+            Identity->chipFlags |= gcvCHIP_FLAG_GC2000_R2;
+        }
+
+        if ((Identity->chipModel    == gcv300)
+        &&  (Identity->chipRevision == 0x2201)
+        )
+        {
+            gctUINT32 chipDate;
+            gctUINT32 chipTime;
+
+            /* Read date and time registers. */
+            gcmkONERROR(
+                gckOS_ReadRegisterEx(Os, Core,
+                                     0x00028,
+                                     &chipDate));
+
+            gcmkONERROR(
+                gckOS_ReadRegisterEx(Os, Core,
+                                     0x0002C,
+                                     &chipTime));
+
+            if ((chipDate == 0x20080814) && (chipTime == 0x12051100))
+            {
+                /* This IP has an ECO; put the correct revision in it. */
+                Identity->chipRevision = 0x1051;
+            }
+        }
+
+        gcmkONERROR(
+            gckOS_ReadRegisterEx(Os, Core,
+                                 0x000A8,
+                                 &Identity->productID));
+    }
+
+    gcmkTRACE_ZONE(gcvLEVEL_INFO, gcvZONE_HARDWARE,
+                   "Identity: chipModel=%X",
+                   Identity->chipModel);
+
+    gcmkTRACE_ZONE(gcvLEVEL_INFO, gcvZONE_HARDWARE,
+                   "Identity: chipRevision=%X",
+                   Identity->chipRevision);
+
+
+    /***************************************************************************
+    ** Get chip features.
+    */
+
+    /* Read chip feature register. */
+    gcmkONERROR(
+        gckOS_ReadRegisterEx(Os, Core,
+                             0x0001C,
+                             &Identity->chipFeatures));
+
+
+    if (((Identity->chipModel == gcv500) && (Identity->chipRevision < 2))
+    ||  ((Identity->chipModel == gcv300) && (Identity->chipRevision < 0x2000))
+    )
+    {
+        /* GC500 rev 1.x and GC300 rev < 2.0 doesn't have these registers. */
+        Identity->chipMinorFeatures  = 0;
+        Identity->chipMinorFeatures1 = 0;
+        Identity->chipMinorFeatures2 = 0;
+        Identity->chipMinorFeatures3 = 0;
+        Identity->chipMinorFeatures4 = 0;
+        Identity->chipMinorFeatures5 = 0;
+        Identity->chipMinorFeatures6 = 0;
+    }
+    else
+    {
+        /* Read chip minor feature register #0. */
+        gcmkONERROR(
+            gckOS_ReadRegisterEx(Os, Core,
+                                 0x00034,
+                                 &Identity->chipMinorFeatures));
+
+        if (((((gctUINT32) (Identity->chipMinorFeatures)) >> (0 ? 21:21) & ((gctUINT32) ((((1 ? 21:21) - (0 ? 21:21) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 21:21) - (0 ? 21:21) + 1)))))) == (0x1 & ((gctUINT32) ((((1 ? 21:21) - (0 ? 21:21) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 21:21) - (0 ? 21:21) + 1)))))))
+        )
+        {
+            /* Read chip minor featuress register #1. */
+            gcmkONERROR(
+                gckOS_ReadRegisterEx(Os, Core,
+                                     0x00074,
+                                     &Identity->chipMinorFeatures1));
+
+            /* Read chip minor featuress register #2. */
+            gcmkONERROR(
+                gckOS_ReadRegisterEx(Os, Core,
+                                     0x00084,
+                                     &Identity->chipMinorFeatures2));
+
+            /*Identity->chipMinorFeatures2 &= ~(0x1 << 3);*/
+
+            /* Read chip minor featuress register #1. */
+            gcmkONERROR(
+                gckOS_ReadRegisterEx(Os, Core,
+                                     0x00088,
+                                     &Identity->chipMinorFeatures3));
+
+
+            /* Read chip minor featuress register #4. */
+            gcmkONERROR(
+                gckOS_ReadRegisterEx(Os, Core,
+                                     0x00094,
+                                     &Identity->chipMinorFeatures4));
+
+            /* Read chip minor featuress register #5. */
+            gcmkONERROR(
+                gckOS_ReadRegisterEx(Os, Core,
+                                     0x000A0,
+                                     &Identity->chipMinorFeatures5));
+
+            /* Read chip minor featuress register #6. */
+            gcmkONERROR(
+                gckOS_ReadRegisterEx(Os, Core,
+                                     0x000DC,
+                                     &Identity->chipMinorFeatures6));
+        }
+        else
+        {
+            /* Chip doesn't has minor features register #1 or 2 or 3 or 4. */
+            Identity->chipMinorFeatures1 = 0;
+            Identity->chipMinorFeatures2 = 0;
+            Identity->chipMinorFeatures3 = 0;
+            Identity->chipMinorFeatures4 = 0;
+            Identity->chipMinorFeatures5 = 0;
+            Identity->chipMinorFeatures6 = 0;
+        }
+    }
+
+    /* Get the Supertile layout in the hardware. */
+    if (((((gctUINT32) (Identity->chipMinorFeatures3)) >> (0 ? 26:26) & ((gctUINT32) ((((1 ? 26:26) - (0 ? 26:26) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 26:26) - (0 ? 26:26) + 1)))))) == (0x1 & ((gctUINT32) ((((1 ? 26:26) - (0 ? 26:26) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 26:26) - (0 ? 26:26) + 1)))))))
+     || ((((gctUINT32) (Identity->chipMinorFeatures3)) >> (0 ? 8:8) & ((gctUINT32) ((((1 ? 8:8) - (0 ? 8:8) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 8:8) - (0 ? 8:8) + 1)))))) == (0x1 & ((gctUINT32) ((((1 ? 8:8) - (0 ? 8:8) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 8:8) - (0 ? 8:8) + 1))))))))
+    {
+        Identity->superTileMode = 2;
+    }
+    else if (((((gctUINT32) (Identity->chipMinorFeatures)) >> (0 ? 27:27) & ((gctUINT32) ((((1 ? 27:27) - (0 ? 27:27) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 27:27) - (0 ? 27:27) + 1)))))) == (0x1 & ((gctUINT32) ((((1 ? 27:27) - (0 ? 27:27) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 27:27) - (0 ? 27:27) + 1))))))))
+    {
+        Identity->superTileMode = 1;
+    }
+    else
+    {
+        Identity->superTileMode = 0;
+    }
+
+    /* Exception for GC1000, revision 5035 &  GC800, revision 4612 */
+    if (((Identity->chipModel == gcv1000) && ((Identity->chipRevision == 0x5035)
+                                           || (Identity->chipRevision == 0x5036)
+                                           || (Identity->chipRevision == 0x5037)
+                                           || (Identity->chipRevision == 0x5039)
+                                           || (Identity->chipRevision >= 0x5040)))
+    || ((Identity->chipModel == gcv800) && (Identity->chipRevision == 0x4612))
+    || ((Identity->chipModel == gcv600) && (Identity->chipRevision >= 0x4650))
+    || ((Identity->chipModel == gcv860) && (Identity->chipRevision == 0x4647))
+    || ((Identity->chipModel == gcv400) && (Identity->chipRevision >= 0x4633)))
+    {
+        Identity->superTileMode = 1;
+    }
+
+    gcmkTRACE_ZONE(gcvLEVEL_INFO, gcvZONE_HARDWARE,
+                   "Identity: chipFeatures=0x%08X",
+                   Identity->chipFeatures);
+
+    gcmkTRACE_ZONE(gcvLEVEL_INFO, gcvZONE_HARDWARE,
+                   "Identity: chipMinorFeatures=0x%08X",
+                   Identity->chipMinorFeatures);
+
+    gcmkTRACE_ZONE(gcvLEVEL_INFO, gcvZONE_HARDWARE,
+                   "Identity: chipMinorFeatures1=0x%08X",
+                   Identity->chipMinorFeatures1);
+
+    gcmkTRACE_ZONE(gcvLEVEL_INFO, gcvZONE_HARDWARE,
+                   "Identity: chipMinorFeatures2=0x%08X",
+                   Identity->chipMinorFeatures2);
+
+    gcmkTRACE_ZONE(gcvLEVEL_INFO, gcvZONE_HARDWARE,
+                   "Identity: chipMinorFeatures3=0x%08X",
+                   Identity->chipMinorFeatures3);
+
+    gcmkTRACE_ZONE(gcvLEVEL_INFO, gcvZONE_HARDWARE,
+                   "Identity: chipMinorFeatures4=0x%08X",
+                   Identity->chipMinorFeatures4);
+
+    gcmkTRACE_ZONE(gcvLEVEL_INFO, gcvZONE_HARDWARE,
+                   "Identity: chipMinorFeatures5=0x%08X",
+                   Identity->chipMinorFeatures5);
+
+    gcmkTRACE_ZONE(gcvLEVEL_INFO, gcvZONE_HARDWARE,
+                   "Identity: chipMinorFeatures6=0x%08X",
+                   Identity->chipMinorFeatures6);
+
+    /***************************************************************************
+    ** Get chip specs.
+    */
+
+    if (((((gctUINT32) (Identity->chipMinorFeatures)) >> (0 ? 21:21) & ((gctUINT32) ((((1 ? 21:21) - (0 ? 21:21) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 21:21) - (0 ? 21:21) + 1)))))) == (0x1 & ((gctUINT32) ((((1 ? 21:21) - (0 ? 21:21) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 21:21) - (0 ? 21:21) + 1))))))))
+    {
+        gctUINT32 specs, specs2, specs3, specs4;
+
+        /* Read gcChipSpecs register. */
+        gcmkONERROR(
+            gckOS_ReadRegisterEx(Os, Core,
+                                 0x00048,
+                                 &specs));
+
+        /* Extract the fields. */
+        registerMax            = (((((gctUINT32) (specs)) >> (0 ? 7:4)) & ((gctUINT32) ((((1 ? 7:4) - (0 ? 7:4) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 7:4) - (0 ? 7:4) + 1)))))) );
+        threadCount            = (((((gctUINT32) (specs)) >> (0 ? 11:8)) & ((gctUINT32) ((((1 ? 11:8) - (0 ? 11:8) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 11:8) - (0 ? 11:8) + 1)))))) );
+        shaderCoreCount        = (((((gctUINT32) (specs)) >> (0 ? 24:20)) & ((gctUINT32) ((((1 ? 24:20) - (0 ? 24:20) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 24:20) - (0 ? 24:20) + 1)))))) );
+        vertexCacheSize        = (((((gctUINT32) (specs)) >> (0 ? 16:12)) & ((gctUINT32) ((((1 ? 16:12) - (0 ? 16:12) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 16:12) - (0 ? 16:12) + 1)))))) );
+        vertexOutputBufferSize = (((((gctUINT32) (specs)) >> (0 ? 31:28)) & ((gctUINT32) ((((1 ? 31:28) - (0 ? 31:28) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 31:28) - (0 ? 31:28) + 1)))))) );
+        pixelPipes             = (((((gctUINT32) (specs)) >> (0 ? 27:25)) & ((gctUINT32) ((((1 ? 27:25) - (0 ? 27:25) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 27:25) - (0 ? 27:25) + 1)))))) );
+
+        /* Read gcChipSpecs2 register. */
+        gcmkONERROR(
+            gckOS_ReadRegisterEx(Os, Core,
+                                 0x00080,
+                                 &specs2));
+
+        instructionCount       = (((((gctUINT32) (specs2)) >> (0 ? 15:8)) & ((gctUINT32) ((((1 ? 15:8) - (0 ? 15:8) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 15:8) - (0 ? 15:8) + 1)))))) );
+        numConstants           = (((((gctUINT32) (specs2)) >> (0 ? 31:16)) & ((gctUINT32) ((((1 ? 31:16) - (0 ? 31:16) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 31:16) - (0 ? 31:16) + 1)))))) );
+        bufferSize             = (((((gctUINT32) (specs2)) >> (0 ? 7:0)) & ((gctUINT32) ((((1 ? 7:0) - (0 ? 7:0) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 7:0) - (0 ? 7:0) + 1)))))) );
+
+        /* Read gcChipSpecs3 register. */
+        gcmkONERROR(
+            gckOS_ReadRegisterEx(Os, Core,
+                                 0x0008C,
+                                 &specs3));
+
+        varyingsCount          = (((((gctUINT32) (specs3)) >> (0 ? 8:4)) & ((gctUINT32) ((((1 ? 8:4) - (0 ? 8:4) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 8:4) - (0 ? 8:4) + 1)))))) );
+
+        /* Read gcChipSpecs4 register. */
+        gcmkONERROR(
+            gckOS_ReadRegisterEx(Os, Core,
+                                 0x0009C,
+                                 &specs4));
+
+
+        streamCount            = (((((gctUINT32) (specs4)) >> (0 ? 16:12)) & ((gctUINT32) ((((1 ? 16:12) - (0 ? 16:12) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 16:12) - (0 ? 16:12) + 1)))))) );
+        if (streamCount == 0)
+        {
+            /* Extract stream count from older register. */
+            streamCount        = (((((gctUINT32) (specs)) >> (0 ? 3:0)) & ((gctUINT32) ((((1 ? 3:0) - (0 ? 3:0) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 3:0) - (0 ? 3:0) + 1)))))) );
+        }
+
+        gcmkTRACE_ZONE(gcvLEVEL_INFO, gcvZONE_HARDWARE,
+                       "Identity: chipSpecs1=0x%08X",
+                       specs);
+
+        gcmkTRACE_ZONE(gcvLEVEL_INFO, gcvZONE_HARDWARE,
+                       "Identity: chipSpecs2=0x%08X",
+                       specs2);
+
+        gcmkTRACE_ZONE(gcvLEVEL_INFO, gcvZONE_HARDWARE,
+                       "Identity: chipSpecs3=0x%08X",
+                       specs3);
+
+        gcmkTRACE_ZONE(gcvLEVEL_INFO, gcvZONE_HARDWARE,
+                       "Identity: chipSpecs4=0x%08X",
+                       specs4);
+    }
+
+    /* Get the number of pixel pipes. */
+    Identity->pixelPipes = gcmMAX(pixelPipes, 1);
+
+    /* Get the stream count. */
+    Identity->streamCount = (streamCount != 0)
+                          ? streamCount
+                          : (Identity->chipModel >= gcv1000) ? 4 : 1;
+
+    gcmkTRACE_ZONE(gcvLEVEL_INFO, gcvZONE_HARDWARE,
+                   "Specs: streamCount=%u%s",
+                   Identity->streamCount,
+                   (streamCount == 0) ? " (default)" : "");
+
+    /* Get the vertex output buffer size. */
+    Identity->vertexOutputBufferSize = (vertexOutputBufferSize != 0)
+                                     ? 1 << vertexOutputBufferSize
+                                     : (Identity->chipModel == gcv400)
+                                       ? (Identity->chipRevision < 0x4000) ? 512
+                                       : (Identity->chipRevision < 0x4200) ? 256
+                                       : 128
+                                     : (Identity->chipModel == gcv530)
+                                       ? (Identity->chipRevision < 0x4200) ? 512
+                                       : 128
+                                     : 512;
+
+    gcmkTRACE_ZONE(gcvLEVEL_INFO, gcvZONE_HARDWARE,
+                   "Specs: vertexOutputBufferSize=%u%s",
+                   Identity->vertexOutputBufferSize,
+                   (vertexOutputBufferSize == 0) ? " (default)" : "");
+
+    /* Get the maximum number of threads. */
+    Identity->threadCount = (threadCount != 0)
+                          ? 1 << threadCount
+                          : (Identity->chipModel == gcv400) ? 64
+                          : (Identity->chipModel == gcv500) ? 128
+                          : (Identity->chipModel == gcv530) ? 128
+                          : 256;
+
+    gcmkTRACE_ZONE(gcvLEVEL_INFO, gcvZONE_HARDWARE,
+                   "Specs: threadCount=%u%s",
+                   Identity->threadCount,
+                   (threadCount == 0) ? " (default)" : "");
+
+    /* Get the number of shader cores. */
+    Identity->shaderCoreCount = (shaderCoreCount != 0)
+                              ? shaderCoreCount
+                              : (Identity->chipModel >= gcv1000) ? 2
+                              : 1;
+    gcmkTRACE_ZONE(gcvLEVEL_INFO, gcvZONE_HARDWARE,
+                   "Specs: shaderCoreCount=%u%s",
+                   Identity->shaderCoreCount,
+                   (shaderCoreCount == 0) ? " (default)" : "");
+
+    /* Get the vertex cache size. */
+    Identity->vertexCacheSize = (vertexCacheSize != 0)
+                              ? vertexCacheSize
+                              : 8;
+    gcmkTRACE_ZONE(gcvLEVEL_INFO, gcvZONE_HARDWARE,
+                   "Specs: vertexCacheSize=%u%s",
+                   Identity->vertexCacheSize,
+                   (vertexCacheSize == 0) ? " (default)" : "");
+
+    /* Get the maximum number of temporary registers. */
+    Identity->registerMax = (registerMax != 0)
+        /* Maximum of registerMax/4 registers are accessible to 1 shader */
+                          ? 1 << registerMax
+                          : (Identity->chipModel == gcv400) ? 32
+                          : 64;
+    gcmkTRACE_ZONE(gcvLEVEL_INFO, gcvZONE_HARDWARE,
+                   "Specs: registerMax=%u%s",
+                   Identity->registerMax,
+                   (registerMax == 0) ? " (default)" : "");
+
+    /* Get the instruction count. */
+    Identity->instructionCount = (instructionCount == 0) ? 256
+                               : (instructionCount == 1) ? 1024
+                               : (instructionCount == 2) ? 2048
+                               : (instructionCount == 0xFF) ? 512
+                               : 256;
+
+    if (Identity->instructionCount == 256)
+    {
+        if ((Identity->chipModel == gcv2000 && Identity->chipRevision == 0x5108)
+        ||  Identity->chipModel == gcv880)
+        {
+            Identity->instructionCount = 512;
+        }
+        else if (((((gctUINT32) (Identity->chipMinorFeatures3)) >> (0 ? 3:3) & ((gctUINT32) ((((1 ? 3:3) - (0 ? 3:3) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 3:3) - (0 ? 3:3) + 1)))))) == (0x1 & ((gctUINT32) ((((1 ? 3:3) - (0 ? 3:3) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 3:3) - (0 ? 3:3) + 1))))))))
+        {
+            Identity->instructionCount = 512;
+        }
+    }
+
+    gcmkTRACE_ZONE(gcvLEVEL_INFO, gcvZONE_HARDWARE,
+                   "Specs: instructionCount=%u%s",
+                   Identity->instructionCount,
+                   (instructionCount == 0) ? " (default)" : "");
+
+    /* Get the number of constants. */
+    Identity->numConstants = (numConstants == 0) ? 168 : numConstants;
+
+    gcmkTRACE_ZONE(gcvLEVEL_INFO, gcvZONE_HARDWARE,
+                   "Specs: numConstants=%u%s",
+                   Identity->numConstants,
+                   (numConstants == 0) ? " (default)" : "");
+
+    /* Get the buffer size. */
+    Identity->bufferSize = bufferSize;
+
+    gcmkTRACE_ZONE(gcvLEVEL_INFO, gcvZONE_HARDWARE,
+                   "Specs: bufferSize=%u%s",
+                   Identity->bufferSize,
+                   (bufferSize == 0) ? " (default)" : "");
+
+
+     if (varyingsCount != 0)
+     {
+         Identity->varyingsCount = varyingsCount;
+     }
+     else if (((((gctUINT32) (Identity->chipMinorFeatures1)) >> (0 ? 23:23) & ((gctUINT32) ((((1 ? 23:23) - (0 ? 23:23) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 23:23) - (0 ? 23:23) + 1)))))) == (0x1 & ((gctUINT32) ((((1 ? 23:23) - (0 ? 23:23) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 23:23) - (0 ? 23:23) + 1))))))))
+     {
+         Identity->varyingsCount = 12;
+     }
+     else
+     {
+         Identity->varyingsCount = 8;
+     }
+
+     /* For some cores, it consumes two varying for position, so the max varying vectors should minus one. */
+     if ((Identity->chipModel == gcv5000 && Identity->chipRevision == 0x5434) ||
+         (Identity->chipModel == gcv4000 && Identity->chipRevision == 0x5222) ||
+         (Identity->chipModel == gcv4000 && Identity->chipRevision == 0x5208) ||
+         (Identity->chipModel == gcv4000 && Identity->chipRevision == 0x5245) ||
+         (Identity->chipModel == gcv3000 && Identity->chipRevision == 0x5435) ||
+         (Identity->chipModel == gcv2200 && Identity->chipRevision == 0x5244) ||
+         (Identity->chipModel == gcv1500 && Identity->chipRevision == 0x5246) ||
+         ((Identity->chipModel == gcv2100 || Identity->chipModel == gcv2000) && Identity->chipRevision == 0x5108) ||
+         (Identity->chipModel == gcv880 && (Identity->chipRevision == 0x5107 || Identity->chipRevision == 0x5106)))
+     {
+         Identity->varyingsCount -= 1;
+     }
+
+    Identity->chip2DControl = 0;
+    if (Identity->chipModel == gcv320)
+    {
+        gctUINT32 data;
+
+        gcmkONERROR(
+            gckOS_ReadRegisterEx(Os,
+                                 Core,
+                                 0x0002C,
+                                 &data));
+
+        if ((data != 33956864) &&
+            ((Identity->chipRevision == 0x5007) ||
+            (Identity->chipRevision == 0x5220)))
+        {
+            Identity->chip2DControl |= 0xFF &
+                (Identity->chipRevision == 0x5220 ? 8 :
+                (Identity->chipRevision == 0x5007 ? 12 : 0));
+        }
+
+        if  (Identity->chipRevision == 0x5007)
+        {
+            /* Disable splitting rectangle. */
+            Identity->chip2DControl |= 0x100;
+
+            /* Enable 2D Flush. */
+            Identity->chip2DControl |= 0x200;
+        }
+    }
+
+
+    gcmkONERROR(
+            gckOS_ReadRegisterEx(Os, Core,
+                                 0x00470,
+                                 &debugControl0));
+
+    if (debugControl0 & (1 << 16))
+    {
+        Identity->chipFlags |= gcvCHIP_FLAG_MSAA_COHERENCEY_ECO_FIX;
+    }
+
+    /* Success. */
+    gcmkFOOTER();
+    return gcvSTATUS_OK;
+
+OnError:
+    /* Return the status. */
+    gcmkFOOTER();
+    return status;
+}
+
+#define gcdDEBUG_MODULE_CLOCK_GATING   0
+#define gcdDISABLE_MODULE_CLOCK_GATING 0
+#define gcdDISABLE_FE_CLOCK_GATING     0
+#define gcdDISABLE_PE_CLOCK_GATING     0
+#define gcdDISABLE_SH_CLOCK_GATING     0
+#define gcdDISABLE_PA_CLOCK_GATING     0
+#define gcdDISABLE_SE_CLOCK_GATING     0
+#define gcdDISABLE_RA_CLOCK_GATING     0
+#define gcdDISABLE_RA_EZ_CLOCK_GATING  0
+#define gcdDISABLE_RA_HZ_CLOCK_GATING  0
+#define gcdDISABLE_TX_CLOCK_GATING     0
+
+#if gcdDEBUG_MODULE_CLOCK_GATING
+gceSTATUS
+_ConfigureModuleLevelClockGating(
+    gckHARDWARE Hardware
+    )
+{
+    gctUINT32 data;
+
+    gcmkVERIFY_OK(
+        gckOS_ReadRegisterEx(Hardware->os,
+                             Hardware->core,
+                             Hardware->powerBaseAddress
+                             + 0x00104,
+                             &data));
+
+#if gcdDISABLE_FE_CLOCK_GATING
+    data = ((((gctUINT32) (data)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 0:0) - (0 ? 0:0) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 0:0) - (0 ? 0:0) + 1))))))) << (0 ? 0:0))) | (((gctUINT32) ((gctUINT32) (1) & ((gctUINT32) ((((1 ? 0:0) - (0 ? 0:0) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 0:0) - (0 ? 0:0) + 1))))))) << (0 ? 0:0)));
+#endif
+
+#if gcdDISABLE_PE_CLOCK_GATING
+    data = ((((gctUINT32) (data)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 2:2) - (0 ? 2:2) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 2:2) - (0 ? 2:2) + 1))))))) << (0 ? 2:2))) | (((gctUINT32) ((gctUINT32) (1) & ((gctUINT32) ((((1 ? 2:2) - (0 ? 2:2) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 2:2) - (0 ? 2:2) + 1))))))) << (0 ? 2:2)));
+#endif
+
+#if gcdDISABLE_SH_CLOCK_GATING
+    data = ((((gctUINT32) (data)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 3:3) - (0 ? 3:3) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 3:3) - (0 ? 3:3) + 1))))))) << (0 ? 3:3))) | (((gctUINT32) ((gctUINT32) (1) & ((gctUINT32) ((((1 ? 3:3) - (0 ? 3:3) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 3:3) - (0 ? 3:3) + 1))))))) << (0 ? 3:3)));
+#endif
+
+#if gcdDISABLE_PA_CLOCK_GATING
+    data = ((((gctUINT32) (data)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 4:4) - (0 ? 4:4) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 4:4) - (0 ? 4:4) + 1))))))) << (0 ? 4:4))) | (((gctUINT32) ((gctUINT32) (1) & ((gctUINT32) ((((1 ? 4:4) - (0 ? 4:4) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 4:4) - (0 ? 4:4) + 1))))))) << (0 ? 4:4)));
+#endif
+
+#if gcdDISABLE_SE_CLOCK_GATING
+    data = ((((gctUINT32) (data)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 5:5) - (0 ? 5:5) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 5:5) - (0 ? 5:5) + 1))))))) << (0 ? 5:5))) | (((gctUINT32) ((gctUINT32) (1) & ((gctUINT32) ((((1 ? 5:5) - (0 ? 5:5) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 5:5) - (0 ? 5:5) + 1))))))) << (0 ? 5:5)));
+#endif
+
+#if gcdDISABLE_RA_CLOCK_GATING
+    data = ((((gctUINT32) (data)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 6:6) - (0 ? 6:6) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 6:6) - (0 ? 6:6) + 1))))))) << (0 ? 6:6))) | (((gctUINT32) ((gctUINT32) (1) & ((gctUINT32) ((((1 ? 6:6) - (0 ? 6:6) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 6:6) - (0 ? 6:6) + 1))))))) << (0 ? 6:6)));
+#endif
+
+#if gcdDISABLE_TX_CLOCK_GATING
+    data = ((((gctUINT32) (data)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 7:7) - (0 ? 7:7) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 7:7) - (0 ? 7:7) + 1))))))) << (0 ? 7:7))) | (((gctUINT32) ((gctUINT32) (1) & ((gctUINT32) ((((1 ? 7:7) - (0 ? 7:7) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 7:7) - (0 ? 7:7) + 1))))))) << (0 ? 7:7)));
+#endif
+
+#if gcdDISABLE_RA_EZ_CLOCK_GATING
+    data = ((((gctUINT32) (data)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 16:16) - (0 ? 16:16) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 16:16) - (0 ? 16:16) + 1))))))) << (0 ? 16:16))) | (((gctUINT32) ((gctUINT32) (1) & ((gctUINT32) ((((1 ? 16:16) - (0 ? 16:16) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 16:16) - (0 ? 16:16) + 1))))))) << (0 ? 16:16)));
+#endif
+
+#if gcdDISABLE_RA_HZ_CLOCK_GATING
+    data = ((((gctUINT32) (data)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 17:17) - (0 ? 17:17) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 17:17) - (0 ? 17:17) + 1))))))) << (0 ? 17:17))) | (((gctUINT32) ((gctUINT32) (1) & ((gctUINT32) ((((1 ? 17:17) - (0 ? 17:17) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 17:17) - (0 ? 17:17) + 1))))))) << (0 ? 17:17)));
+#endif
+
+    gcmkVERIFY_OK(
+        gckOS_WriteRegisterEx(Hardware->os,
+                              Hardware->core,
+                              Hardware->powerBaseAddress
+                              + 0x00104,
+                              data));
+
+#if gcdDISABLE_MODULE_CLOCK_GATING
+    gcmkVERIFY_OK(
+        gckOS_ReadRegisterEx(Hardware->os,
+                             Hardware->core,
+                             Hardware->powerBaseAddress +
+                             0x00100,
+                             &data));
+
+    data = ((((gctUINT32) (data)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 0:0) - (0 ? 0:0) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 0:0) - (0 ? 0:0) + 1))))))) << (0 ? 0:0))) | (((gctUINT32) ((gctUINT32) (0) & ((gctUINT32) ((((1 ? 0:0) - (0 ? 0:0) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 0:0) - (0 ? 0:0) + 1))))))) << (0 ? 0:0)));
+
+
+    gcmkVERIFY_OK(
+        gckOS_WriteRegisterEx(Hardware->os,
+                              Hardware->core,
+                              Hardware->powerBaseAddress
+                              + 0x00100,
+                              data));
+#endif
+
+    return gcvSTATUS_OK;
+}
+#endif
+
+#if gcdPOWEROFF_TIMEOUT
+void
+_PowerTimerFunction(
+    gctPOINTER Data
+    )
+{
+    gckHARDWARE hardware = (gckHARDWARE)Data;
+    gcmkVERIFY_OK(
+        gckHARDWARE_SetPowerManagementState(hardware, gcvPOWER_OFF_TIMEOUT));
+}
+#endif
+
+static gceSTATUS
+_VerifyDMA(
+    IN gckOS Os,
+    IN gceCORE Core,
+    gctUINT32_PTR Address1,
+    gctUINT32_PTR Address2,
+    gctUINT32_PTR State1,
+    gctUINT32_PTR State2
+    )
+{
+    gceSTATUS status;
+    gctUINT32 i;
+
+    gcmkONERROR(gckOS_ReadRegisterEx(Os, Core, 0x660, State1));
+    gcmkONERROR(gckOS_ReadRegisterEx(Os, Core, 0x664, Address1));
+
+    for (i = 0; i < 500; i += 1)
+    {
+        gcmkONERROR(gckOS_ReadRegisterEx(Os, Core, 0x660, State2));
+        gcmkONERROR(gckOS_ReadRegisterEx(Os, Core, 0x664, Address2));
+
+        if (*Address1 != *Address2)
+        {
+            break;
+        }
+
+        if (*State1 != *State2)
+        {
+            break;
+        }
+    }
+
+OnError:
+    return status;
+}
+
+static gceSTATUS
+_DumpDebugRegisters(
+    IN gckOS Os,
+    IN gceCORE Core,
+    IN gcsiDEBUG_REGISTERS_PTR Descriptor
+    )
+{
+    gceSTATUS status = gcvSTATUS_OK;
+    gctUINT32 select;
+    gctUINT32 data = 0;
+    gctUINT i;
+
+    gcmkHEADER_ARG("Os=0x%X Descriptor=0x%X", Os, Descriptor);
+
+    gcmkPRINT_N(4, "    %s debug registers:\n", Descriptor->module);
+
+    for (i = 0; i < Descriptor->count; i += 1)
+    {
+        select = i << Descriptor->shift;
+
+        gcmkONERROR(gckOS_WriteRegisterEx(Os, Core, Descriptor->index, select));
+#if gcdFPGA_BUILD
+        gcmkONERROR(gckOS_Delay(Os, 1000));
+#endif
+        gcmkONERROR(gckOS_ReadRegisterEx(Os, Core, Descriptor->data, &data));
+
+        gcmkPRINT_N(12, "      [0x%02X] 0x%08X\n", i, data);
+    }
+
+    select = 0xF << Descriptor->shift;
+
+    for (i = 0; i < 500; i += 1)
+    {
+        gcmkONERROR(gckOS_WriteRegisterEx(Os, Core, Descriptor->index, select));
+#if gcdFPGA_BUILD
+        gcmkONERROR(gckOS_Delay(Os, 1000));
+#endif
+        gcmkONERROR(gckOS_ReadRegisterEx(Os, Core, Descriptor->data, &data));
+
+        if (data == Descriptor->signature)
+        {
+            break;
+        }
+    }
+
+    if (i == 500)
+    {
+        gcmkPRINT_N(4, "      failed to obtain the signature (read 0x%08X).\n", data);
+    }
+    else
+    {
+        gcmkPRINT_N(8, "      signature = 0x%08X (%d read attempt(s))\n", data, i + 1);
+    }
+
+OnError:
+    /* Return the error. */
+    gcmkFOOTER();
+    return status;
+}
+
+static gceSTATUS
+_IsGPUPresent(
+    IN gckHARDWARE Hardware
+    )
+{
+    gceSTATUS status;
+    gcsHAL_QUERY_CHIP_IDENTITY identity;
+    gctUINT32 control;
+
+    gcmkHEADER_ARG("Hardware=0x%x", Hardware);
+
+    /* Verify the arguments. */
+    gcmkVERIFY_OBJECT(Hardware, gcvOBJ_HARDWARE);
+
+    gcmkONERROR(gckOS_ReadRegisterEx(Hardware->os,
+                                     Hardware->core,
+                                     0x00000,
+                                     &control));
+
+    control = ((((gctUINT32) (control)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 1:1) - (0 ? 1:1) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 1:1) - (0 ? 1:1) + 1))))))) << (0 ? 1:1))) | (((gctUINT32) ((gctUINT32) (0) & ((gctUINT32) ((((1 ? 1:1) - (0 ? 1:1) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 1:1) - (0 ? 1:1) + 1))))))) << (0 ? 1:1)));
+    control = ((((gctUINT32) (control)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 0:0) - (0 ? 0:0) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 0:0) - (0 ? 0:0) + 1))))))) << (0 ? 0:0))) | (((gctUINT32) ((gctUINT32) (0) & ((gctUINT32) ((((1 ? 0:0) - (0 ? 0:0) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 0:0) - (0 ? 0:0) + 1))))))) << (0 ? 0:0)));
+
+    gcmkONERROR(gckOS_WriteRegisterEx(Hardware->os,
+                                      Hardware->core,
+                                      0x00000,
+                                      control));
+
+    /* Identify the hardware. */
+    gcmkONERROR(_IdentifyHardware(Hardware->os,
+                                  Hardware->core,
+                                  &identity));
+
+    /* Check if these are the same values as saved before. */
+    if ((Hardware->identity.chipModel          != identity.chipModel)
+    ||  (Hardware->identity.chipRevision       != identity.chipRevision)
+    ||  (Hardware->identity.chipFeatures       != identity.chipFeatures)
+    ||  (Hardware->identity.chipMinorFeatures  != identity.chipMinorFeatures)
+    ||  (Hardware->identity.chipMinorFeatures1 != identity.chipMinorFeatures1)
+    ||  (Hardware->identity.chipMinorFeatures2 != identity.chipMinorFeatures2)
+    )
+    {
+        gcmkPRINT("[galcore]: GPU is not present.");
+        gcmkONERROR(gcvSTATUS_GPU_NOT_RESPONDING);
+    }
+
+    /* Success. */
+    gcmkFOOTER_NO();
+    return gcvSTATUS_OK;
+
+OnError:
+    /* Return the error. */
+    gcmkFOOTER();
+    return status;
+}
+
+gceSTATUS
+_FlushCache(
+    gckHARDWARE Hardware,
+    gckCOMMAND Command
+    )
+{
+    gceSTATUS status;
+    gctUINT32 bytes, requested;
+    gctPOINTER buffer;
+
+    /* Get the size of the flush command. */
+    gcmkONERROR(gckHARDWARE_Flush(Hardware,
+                                  gcvFLUSH_ALL,
+                                  gcvNULL,
+                                  &requested));
+
+    /* Reserve space in the command queue. */
+    gcmkONERROR(gckCOMMAND_Reserve(Command,
+                                   requested,
+                                   &buffer,
+                                   &bytes));
+
+    /* Append a flush. */
+    gcmkONERROR(gckHARDWARE_Flush(
+        Hardware, gcvFLUSH_ALL, buffer, &bytes
+        ));
+
+    /* Execute the command queue. */
+    gcmkONERROR(gckCOMMAND_Execute(Command, requested));
+
+    return gcvSTATUS_OK;
+
+OnError:
+    return status;
+}
+
+gctBOOL
+_IsGPUIdle(
+    IN gctUINT32 Idle
+    )
+{
+   return  (((((gctUINT32) (Idle)) >> (0 ? 0:0)) & ((gctUINT32) ((((1 ? 0:0) - (0 ? 0:0) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 0:0) - (0 ? 0:0) + 1)))))) )
+        && (((((gctUINT32) (Idle)) >> (0 ? 1:1)) & ((gctUINT32) ((((1 ? 1:1) - (0 ? 1:1) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 1:1) - (0 ? 1:1) + 1)))))) )
+        && (((((gctUINT32) (Idle)) >> (0 ? 3:3)) & ((gctUINT32) ((((1 ? 3:3) - (0 ? 3:3) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 3:3) - (0 ? 3:3) + 1)))))) )
+        && (((((gctUINT32) (Idle)) >> (0 ? 4:4)) & ((gctUINT32) ((((1 ? 4:4) - (0 ? 4:4) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 4:4) - (0 ? 4:4) + 1)))))) )
+        && (((((gctUINT32) (Idle)) >> (0 ? 5:5)) & ((gctUINT32) ((((1 ? 5:5) - (0 ? 5:5) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 5:5) - (0 ? 5:5) + 1)))))) )
+        && (((((gctUINT32) (Idle)) >> (0 ? 6:6)) & ((gctUINT32) ((((1 ? 6:6) - (0 ? 6:6) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 6:6) - (0 ? 6:6) + 1)))))) )
+        && (((((gctUINT32) (Idle)) >> (0 ? 7:7)) & ((gctUINT32) ((((1 ? 7:7) - (0 ? 7:7) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 7:7) - (0 ? 7:7) + 1)))))) )
+        && (((((gctUINT32) (Idle)) >> (0 ? 2:2)) & ((gctUINT32) ((((1 ? 2:2) - (0 ? 2:2) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 2:2) - (0 ? 2:2) + 1)))))) )
+        ;
+}
+
+/*
+* State timer helper must be called with powerMutex held.
+*/
+void
+gckSTATETIMER_Reset(
+    IN gcsSTATETIMER * StateTimer,
+    IN gctUINT64 Start
+    )
+{
+    gctUINT64 now;
+
+    if (Start)
+    {
+        now = Start;
+    }
+    else
+    {
+        gckOS_GetProfileTick(&now);
+    }
+
+    StateTimer->recent = StateTimer->start = now;
+
+    gckOS_ZeroMemory(StateTimer->elapse, gcmSIZEOF(StateTimer->elapse));
+}
+
+void
+gckSTATETIMER_Accumulate(
+    IN gcsSTATETIMER * StateTimer,
+    IN gceCHIPPOWERSTATE OldState
+    )
+{
+    gctUINT64 now;
+    gctUINT64 elapse;
+
+    gckOS_GetProfileTick(&now);
+
+    elapse = now - StateTimer->recent;
+
+    StateTimer->recent = now;
+
+    StateTimer->elapse[OldState] += elapse;
+}
+
+void
+gckSTATETIMER_Query(
+    IN gcsSTATETIMER * StateTimer,
+    IN gceCHIPPOWERSTATE State,
+    OUT gctUINT64_PTR Start,
+    OUT gctUINT64_PTR End,
+    OUT gctUINT64_PTR On,
+    OUT gctUINT64_PTR Off,
+    OUT gctUINT64_PTR Idle,
+    OUT gctUINT64_PTR Suspend
+    )
+{
+    *Start = StateTimer->start;
+
+    gckSTATETIMER_Accumulate(StateTimer, State);
+
+    *End = StateTimer->recent;
+
+    *On      = StateTimer->elapse[gcvPOWER_ON];
+    *Off     = StateTimer->elapse[gcvPOWER_OFF];
+    *Idle    = StateTimer->elapse[gcvPOWER_IDLE];
+    *Suspend = StateTimer->elapse[gcvPOWER_SUSPEND];
+
+    gckSTATETIMER_Reset(StateTimer, StateTimer->recent);
+}
+
+/******************************************************************************\
+****************************** gckHARDWARE API code *****************************
+\******************************************************************************/
+
+/*******************************************************************************
+**
+**  gckHARDWARE_Construct
+**
+**  Construct a new gckHARDWARE object.
+**
+**  INPUT:
+**
+**      gckOS Os
+**          Pointer to an initialized gckOS object.
+**
+**      gceCORE Core
+**          Specified core.
+**
+**  OUTPUT:
+**
+**      gckHARDWARE * Hardware
+**          Pointer to a variable that will hold the pointer to the gckHARDWARE
+**          object.
+*/
+gceSTATUS
+gckHARDWARE_Construct(
+    IN gckOS Os,
+    IN gceCORE Core,
+    OUT gckHARDWARE * Hardware
+    )
+{
+    gceSTATUS status;
+    gckHARDWARE hardware = gcvNULL;
+    gctUINT16 data = 0xff00;
+    gctPOINTER pointer = gcvNULL;
+#if gcdMULTI_GPU_AFFINITY
+    gctUINT32 control;
+#endif
+
+    gcmkHEADER_ARG("Os=0x%x", Os);
+
+    /* Verify the arguments. */
+    gcmkVERIFY_OBJECT(Os, gcvOBJ_OS);
+    gcmkVERIFY_ARGUMENT(Hardware != gcvNULL);
+
+    /* Enable the GPU. */
+    gcmkONERROR(gckOS_SetGPUPower(Os, Core, gcvTRUE, gcvTRUE));
+    gcmkONERROR(gckOS_WriteRegisterEx(Os,
+                                      Core,
+                                      0x00000,
+                                      0x00000900));
+
+    /* Allocate the gckHARDWARE object. */
+    gcmkONERROR(gckOS_Allocate(Os,
+                               gcmSIZEOF(struct _gckHARDWARE),
+                               &pointer));
+
+    gckOS_ZeroMemory(pointer, gcmSIZEOF(struct _gckHARDWARE));
+
+    hardware = (gckHARDWARE) pointer;
+
+    /* Initialize the gckHARDWARE object. */
+    hardware->object.type = gcvOBJ_HARDWARE;
+    hardware->os          = Os;
+    hardware->core        = Core;
+
+    /* Identify the hardware. */
+    gcmkONERROR(_IdentifyHardware(Os, Core, &hardware->identity));
+
+    /* Determine the hardware type */
+    switch (hardware->identity.chipModel)
+    {
+    case gcv350:
+    case gcv355:
+        hardware->type = gcvHARDWARE_VG;
+        break;
+
+    case gcv200:
+    case gcv300:
+    case gcv320:
+    case gcv328:
+    case gcv420:
+    case gcv428:
+    case gcv520:
+        hardware->type = gcvHARDWARE_2D;
+        break;
+
+    default:
+#if gcdMULTI_GPU_AFFINITY
+        hardware->type = (Core == gcvCORE_MAJOR) ? gcvHARDWARE_3D : gcvHARDWARE_OCL;
+#else
+        hardware->type = gcvHARDWARE_3D;
+#endif
+
+        if(hardware->identity.chipModel == gcv880 && hardware->identity.chipRevision == 0x5107)
+        {
+            /*set outstanding limit*/
+            gctUINT32 axi_ot;
+            gcmkONERROR(gckOS_ReadRegisterEx(Os, Core, 0x00414, &axi_ot));
+            axi_ot = (axi_ot & (~0xFF)) | 0x00010;
+            gcmkONERROR(gckOS_WriteRegisterEx(Os, Core, 0x00414, axi_ot));
+        }
+
+
+        if ((((((gctUINT32) (hardware->identity.chipFeatures)) >> (0 ? 9:9)) & ((gctUINT32) ((((1 ? 9:9) - (0 ? 9:9) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 9:9) - (0 ? 9:9) + 1)))))) ))
+        {
+            hardware->type = (gceHARDWARE_TYPE) (hardware->type | gcvHARDWARE_2D);
+        }
+    }
+
+    hardware->powerBaseAddress
+        = ((hardware->identity.chipModel   == gcv300)
+        && (hardware->identity.chipRevision < 0x2000))
+            ? 0x0100
+            : 0x0000;
+
+    /* _ResetGPU need powerBaseAddress. */
+    status = _ResetGPU(hardware, Os, Core);
+
+    if (status != gcvSTATUS_OK)
+    {
+        gcmkTRACE_ZONE(gcvLEVEL_INFO, gcvZONE_HARDWARE,
+            "_ResetGPU failed: status=%d\n", status);
+    }
+
+#if gcdENABLE_DEC_COMPRESSION && !gcdDEC_ENABLE_AHB
+    gcmkONERROR(gckOS_WriteRegisterEx(Os, gcvCORE_DEC, 0x18180, ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 22:22) - (0 ? 22:22) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 22:22) - (0 ? 22:22) + 1))))))) << (0 ? 22:22))) | (((gctUINT32) (0x1 & ((gctUINT32) ((((1 ? 22:22) - (0 ? 22:22) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 22:22) - (0 ? 22:22) + 1))))))) << (0 ? 22:22)))));
+#endif
+
+#if gcdMULTI_GPU_AFFINITY
+    control = ((((gctUINT32) (0x00FF0A05)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 27:27) - (0 ? 27:27) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 27:27) - (0 ? 27:27) + 1))))))) << (0 ? 27:27))) | (((gctUINT32) ((gctUINT32) (1) & ((gctUINT32) ((((1 ? 27:27) - (0 ? 27:27) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 27:27) - (0 ? 27:27) + 1))))))) << (0 ? 27:27)));
+
+    gcmkONERROR(gckOS_WriteRegisterEx(Os,
+                                      Core,
+                                      0x0055C,
+                                      control));
+#endif
+
+    hardware->powerMutex = gcvNULL;
+
+    hardware->mmuVersion
+        = (((((gctUINT32) (hardware->identity.chipMinorFeatures1)) >> (0 ? 28:28)) & ((gctUINT32) ((((1 ? 28:28) - (0 ? 28:28) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 28:28) - (0 ? 28:28) + 1)))))) );
+
+    /* Determine whether bug fixes #1 are present. */
+    hardware->extraEventStates = ((((gctUINT32) (hardware->identity.chipMinorFeatures1)) >> (0 ? 3:3) & ((gctUINT32) ((((1 ? 3:3) - (0 ? 3:3) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 3:3) - (0 ? 3:3) + 1)))))) == (0x0 & ((gctUINT32) ((((1 ? 3:3) - (0 ? 3:3) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 3:3) - (0 ? 3:3) + 1)))))));
+
+    /* Check if big endian */
+    hardware->bigEndian = (*(gctUINT8 *)&data == 0xff);
+
+    /* Initialize the fast clear. */
+    gcmkONERROR(gckHARDWARE_SetFastClear(hardware, -1, -1));
+
+#if !gcdENABLE_128B_MERGE
+
+    if (((((gctUINT32) (hardware->identity.chipMinorFeatures2)) >> (0 ? 21:21) & ((gctUINT32) ((((1 ? 21:21) - (0 ? 21:21) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 21:21) - (0 ? 21:21) + 1)))))) == (0x1  & ((gctUINT32) ((((1 ? 21:21) - (0 ? 21:21) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 21:21) - (0 ? 21:21) + 1))))))))
+    {
+        /* 128B merge is turned on by default. Disable it. */
+        gcmkONERROR(gckOS_WriteRegisterEx(Os, Core, 0x00558, 0));
+    }
+
+#endif
+
+    /* Set power state to ON. */
+    hardware->chipPowerState  = gcvPOWER_ON;
+    hardware->clockState      = gcvTRUE;
+    hardware->powerState      = gcvTRUE;
+    hardware->lastWaitLink    = ~0U;
+    hardware->lastEnd         = ~0U;
+    hardware->globalSemaphore = gcvNULL;
+#if gcdENABLE_FSCALE_VAL_ADJUST
+    hardware->powerOnFscaleVal = 64;
+#endif
+
+    gcmkONERROR(gckOS_CreateMutex(Os, &hardware->powerMutex));
+    gcmkONERROR(gckOS_CreateSemaphore(Os, &hardware->globalSemaphore));
+    hardware->startIsr = gcvNULL;
+    hardware->stopIsr = gcvNULL;
+
+#if gcdPOWEROFF_TIMEOUT
+    hardware->powerOffTimeout = gcdPOWEROFF_TIMEOUT;
+
+    gcmkVERIFY_OK(gckOS_CreateTimer(Os,
+                                    _PowerTimerFunction,
+                                    (gctPOINTER)hardware,
+                                    &hardware->powerOffTimer));
+#endif
+
+    gcmkONERROR(gckOS_AtomConstruct(Os, &hardware->pageTableDirty));
+    gcmkONERROR(gckOS_AtomConstruct(Os, &hardware->pendingEvent));
+
+#if gcdLINK_QUEUE_SIZE
+    hardware->linkQueue.front = 0;
+    hardware->linkQueue.rear = 0;
+    hardware->linkQueue.count = 0;
+#endif
+
+    /* Enable power management by default. */
+    hardware->powerManagement = gcvTRUE;
+
+    /* Disable profiler by default */
+    hardware->gpuProfiler = gcvFALSE;
+
+#if defined(LINUX) || defined(__QNXNTO__) || defined(UNDERCE)
+    if (hardware->mmuVersion)
+    {
+        hardware->endAfterFlushMmuCache = gcvTRUE;
+    }
+    else
+#endif
+    {
+        hardware->endAfterFlushMmuCache = gcvFALSE;
+    }
+
+    gcmkONERROR(gckOS_QueryOption(Os, "mmu", (gctUINT32_PTR)&hardware->enableMMU));
+
+    hardware->minFscaleValue = 1;
+
+    gckSTATETIMER_Reset(&hardware->powerStateTimer, 0);
+
+    /* Return pointer to the gckHARDWARE object. */
+    *Hardware = hardware;
+
+    /* Success. */
+    gcmkFOOTER_ARG("*Hardware=0x%x", *Hardware);
+    return gcvSTATUS_OK;
+
+OnError:
+    /* Roll back. */
+    if (hardware != gcvNULL)
+    {
+        /* Turn off the power. */
+        gcmkVERIFY_OK(gckOS_SetGPUPower(Os, Core, gcvFALSE, gcvFALSE));
+
+        if (hardware->globalSemaphore != gcvNULL)
+        {
+            /* Destroy the global semaphore. */
+            gcmkVERIFY_OK(gckOS_DestroySemaphore(Os,
+                                                 hardware->globalSemaphore));
+        }
+
+        if (hardware->powerMutex != gcvNULL)
+        {
+            /* Destroy the power mutex. */
+            gcmkVERIFY_OK(gckOS_DeleteMutex(Os, hardware->powerMutex));
+        }
+
+#if gcdPOWEROFF_TIMEOUT
+        if (hardware->powerOffTimer != gcvNULL)
+        {
+            gcmkVERIFY_OK(gckOS_StopTimer(Os, hardware->powerOffTimer));
+            gcmkVERIFY_OK(gckOS_DestroyTimer(Os, hardware->powerOffTimer));
+        }
+#endif
+
+        if (hardware->pageTableDirty != gcvNULL)
+        {
+            gcmkVERIFY_OK(gckOS_AtomDestroy(Os, hardware->pageTableDirty));
+        }
+
+        if (hardware->pendingEvent != gcvNULL)
+        {
+            gcmkVERIFY_OK(gckOS_AtomDestroy(Os, hardware->pendingEvent));
+        }
+
+        gcmkVERIFY_OK(gcmkOS_SAFE_FREE(Os, hardware));
+    }
+
+    /* Return the status. */
+    gcmkFOOTER();
+    return status;
+}
+
+/*******************************************************************************
+**
+**  gckHARDWARE_Destroy
+**
+**  Destroy an gckHARDWARE object.
+**
+**  INPUT:
+**
+**      gckHARDWARE Hardware
+**          Pointer to the gckHARDWARE object that needs to be destroyed.
+**
+**  OUTPUT:
+**
+**      Nothing.
+*/
+gceSTATUS
+gckHARDWARE_Destroy(
+    IN gckHARDWARE Hardware
+    )
+{
+    gceSTATUS status;
+
+    gcmkHEADER_ARG("Hardware=0x%x", Hardware);
+
+    /* Verify the arguments. */
+    gcmkVERIFY_OBJECT(Hardware, gcvOBJ_HARDWARE);
+
+    /* Destroy the power semaphore. */
+    gcmkVERIFY_OK(gckOS_DestroySemaphore(Hardware->os,
+                                         Hardware->globalSemaphore));
+
+    /* Destroy the power mutex. */
+    gcmkVERIFY_OK(gckOS_DeleteMutex(Hardware->os, Hardware->powerMutex));
+
+#if gcdPOWEROFF_TIMEOUT
+    gcmkVERIFY_OK(gckOS_StopTimer(Hardware->os, Hardware->powerOffTimer));
+    gcmkVERIFY_OK(gckOS_DestroyTimer(Hardware->os, Hardware->powerOffTimer));
+#endif
+
+    gcmkVERIFY_OK(gckOS_AtomDestroy(Hardware->os, Hardware->pageTableDirty));
+
+    gcmkVERIFY_OK(gckOS_AtomDestroy(Hardware->os, Hardware->pendingEvent));
+
+    gcmkVERIFY_OK(gckOS_FreeNonPagedMemory(
+        Hardware->os,
+        Hardware->functionBytes,
+        Hardware->functionPhysical,
+        Hardware->functionLogical
+        ));
+
+    /* Mark the object as unknown. */
+    Hardware->object.type = gcvOBJ_UNKNOWN;
+
+    /* Free the object. */
+    gcmkONERROR(gcmkOS_SAFE_FREE(Hardware->os, Hardware));
+
+    /* Success. */
+    gcmkFOOTER_NO();
+    return gcvSTATUS_OK;
+
+OnError:
+    gcmkFOOTER();
+    return status;
+}
+
+/*******************************************************************************
+**
+**  gckHARDWARE_GetType
+**
+**  Get the hardware type.
+**
+**  INPUT:
+**
+**      gckHARDWARE Harwdare
+**          Pointer to an gckHARDWARE object.
+**
+**  OUTPUT:
+**
+**      gceHARDWARE_TYPE * Type
+**          Pointer to a variable that receives the type of hardware object.
+*/
+gceSTATUS
+gckHARDWARE_GetType(
+    IN gckHARDWARE Hardware,
+    OUT gceHARDWARE_TYPE * Type
+    )
+{
+    gcmkHEADER_ARG("Hardware=0x%x", Hardware);
+    gcmkVERIFY_ARGUMENT(Type != gcvNULL);
+
+    *Type = Hardware->type;
+
+    gcmkFOOTER_ARG("*Type=%d", *Type);
+    return gcvSTATUS_OK;
+}
+
+/*******************************************************************************
+**
+**  gckHARDWARE_InitializeHardware
+**
+**  Initialize the hardware.
+**
+**  INPUT:
+**
+**      gckHARDWARE Hardware
+**          Pointer to the gckHARDWARE object.
+**
+**  OUTPUT:
+**
+**      Nothing.
+*/
+gceSTATUS
+gckHARDWARE_InitializeHardware(
+    IN gckHARDWARE Hardware
+    )
+{
+    gceSTATUS status;
+    gctUINT32 baseAddress;
+    gctUINT32 chipRev;
+    gctUINT32 control;
+    gctUINT32 data;
+    gctUINT32 regPMC = 0;
+
+    gcmkHEADER_ARG("Hardware=0x%x", Hardware);
+
+    /* Verify the arguments. */
+    gcmkVERIFY_OBJECT(Hardware, gcvOBJ_HARDWARE);
+
+    /* Read the chip revision register. */
+    gcmkONERROR(gckOS_ReadRegisterEx(Hardware->os,
+                                     Hardware->core,
+                                     0x00024,
+                                     &chipRev));
+
+    chipRev &= 0xffff;
+
+    if (chipRev != Hardware->identity.chipRevision)
+    {
+        /* Chip is not there! */
+        gcmkONERROR(gcvSTATUS_CONTEXT_LOSSED);
+    }
+
+    /* Disable isolate GPU bit. */
+    gcmkONERROR(gckOS_WriteRegisterEx(Hardware->os,
+                                      Hardware->core,
+                                      0x00000,
+                                      ((((gctUINT32) (0x00000900)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 19:19) - (0 ? 19:19) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 19:19) - (0 ? 19:19) + 1))))))) << (0 ? 19:19))) | (((gctUINT32) ((gctUINT32) (0) & ((gctUINT32) ((((1 ? 19:19) - (0 ? 19:19) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 19:19) - (0 ? 19:19) + 1))))))) << (0 ? 19:19)))));
+
+    gcmkONERROR(gckOS_ReadRegisterEx(Hardware->os,
+                                     Hardware->core,
+                                     0x00000,
+                                     &control));
+
+    /* Enable debug register. */
+    gcmkONERROR(gckOS_WriteRegisterEx(Hardware->os,
+                                      Hardware->core,
+                                      0x00000,
+                                      ((((gctUINT32) (control)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 11:11) - (0 ? 11:11) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 11:11) - (0 ? 11:11) + 1))))))) << (0 ? 11:11))) | (((gctUINT32) ((gctUINT32) (0) & ((gctUINT32) ((((1 ? 11:11) - (0 ? 11:11) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 11:11) - (0 ? 11:11) + 1))))))) << (0 ? 11:11)))));
+
+    /* Reset memory counters. */
+    gcmkONERROR(gckOS_WriteRegisterEx(Hardware->os,
+                                      Hardware->core,
+                                      0x0003C,
+                                      ~0U));
+
+    gcmkONERROR(gckOS_WriteRegisterEx(Hardware->os,
+                                      Hardware->core,
+                                      0x0003C,
+                                      0));
+
+    /* Get the system's physical base address. */
+    gcmkONERROR(gckOS_GetBaseAddress(Hardware->os, &baseAddress));
+
+    /* Program the base addesses. */
+    gcmkONERROR(gckOS_WriteRegisterEx(Hardware->os,
+                                      Hardware->core,
+                                      0x0041C,
+                                      baseAddress));
+
+    gcmkONERROR(gckOS_WriteRegisterEx(Hardware->os,
+                                      Hardware->core,
+                                      0x00418,
+                                      baseAddress));
+
+    gcmkONERROR(gckOS_WriteRegisterEx(Hardware->os,
+                                      Hardware->core,
+                                      0x00428,
+                                      baseAddress));
+
+    gcmkONERROR(gckOS_WriteRegisterEx(Hardware->os,
+                                      Hardware->core,
+                                      0x00420,
+                                      baseAddress));
+
+    gcmkONERROR(gckOS_WriteRegisterEx(Hardware->os,
+                                      Hardware->core,
+                                      0x00424,
+                                      baseAddress));
+
+    {
+        gcmkONERROR(gckOS_ReadRegisterEx(Hardware->os,
+                                         Hardware->core,
+                                         Hardware->powerBaseAddress +
+                                         0x00100,
+                                         &data));
+
+        /* Enable clock gating. */
+        data = ((((gctUINT32) (data)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 0:0) - (0 ? 0:0) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 0:0) - (0 ? 0:0) + 1))))))) << (0 ? 0:0))) | (((gctUINT32) ((gctUINT32) (1) & ((gctUINT32) ((((1 ? 0:0) - (0 ? 0:0) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 0:0) - (0 ? 0:0) + 1))))))) << (0 ? 0:0)));
+
+        if ((Hardware->identity.chipRevision == 0x4301)
+        ||  (Hardware->identity.chipRevision == 0x4302)
+        )
+        {
+            /* Disable stall module level clock gating for 4.3.0.1 and 4.3.0.2
+            ** revisions. */
+            data = ((((gctUINT32) (data)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 1:1) - (0 ? 1:1) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 1:1) - (0 ? 1:1) + 1))))))) << (0 ? 1:1))) | (((gctUINT32) ((gctUINT32) (1) & ((gctUINT32) ((((1 ? 1:1) - (0 ? 1:1) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 1:1) - (0 ? 1:1) + 1))))))) << (0 ? 1:1)));
+        }
+
+        gcmkONERROR(gckOS_WriteRegisterEx(Hardware->os,
+                                          Hardware->core,
+                                          Hardware->powerBaseAddress
+                                          + 0x00100,
+                                          data));
+
+    }
+
+    if (Hardware->identity.chipModel == gcv4000 &&
+        ((Hardware->identity.chipRevision == 0x5208) || (Hardware->identity.chipRevision == 0x5222)))
+    {
+        gcmkONERROR(
+            gckOS_WriteRegisterEx(Hardware->os,
+                                  Hardware->core,
+                                  0x0010C,
+                                  ((((gctUINT32) (0x01590880)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 23:23) - (0 ? 23:23) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 23:23) - (0 ? 23:23) + 1))))))) << (0 ? 23:23))) | (((gctUINT32) ((gctUINT32) (1) & ((gctUINT32) ((((1 ? 23:23) - (0 ? 23:23) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 23:23) - (0 ? 23:23) + 1))))))) << (0 ? 23:23)))));
+    }
+
+    if (Hardware->identity.chipModel == gcv1000 &&
+        (Hardware->identity.chipRevision == 0x5039 ||
+        Hardware->identity.chipRevision == 0x5040))
+    {
+        gctUINT32 pulseEater;
+
+        pulseEater = ((((gctUINT32) (0x01590880)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 16:16) - (0 ? 16:16) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 16:16) - (0 ? 16:16) + 1))))))) << (0 ? 16:16))) | (((gctUINT32) ((gctUINT32) (0) & ((gctUINT32) ((((1 ? 16:16) - (0 ? 16:16) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 16:16) - (0 ? 16:16) + 1))))))) << (0 ? 16:16)));
+
+        gcmkONERROR(
+            gckOS_WriteRegisterEx(Hardware->os,
+                                  Hardware->core,
+                                  0x0010C,
+                                  ((((gctUINT32) (pulseEater)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 17:17) - (0 ? 17:17) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 17:17) - (0 ? 17:17) + 1))))))) << (0 ? 17:17))) | (((gctUINT32) ((gctUINT32) (1) & ((gctUINT32) ((((1 ? 17:17) - (0 ? 17:17) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 17:17) - (0 ? 17:17) + 1))))))) << (0 ? 17:17)))));
+    }
+
+    if ((gckHARDWARE_IsFeatureAvailable(Hardware, gcvFEATURE_HALTI2) == gcvSTATUS_FALSE)
+     || (Hardware->identity.chipRevision < 0x5422)
+    )
+    {
+        if (regPMC == 0)
+        {
+            gcmkONERROR(
+                gckOS_ReadRegisterEx(Hardware->os,
+                                     Hardware->core,
+                                     Hardware->powerBaseAddress
+                                     + 0x00104,
+                                     &regPMC));
+        }
+
+        regPMC = ((((gctUINT32) (regPMC)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 15:15) - (0 ? 15:15) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 15:15) - (0 ? 15:15) + 1))))))) << (0 ? 15:15))) | (((gctUINT32) ((gctUINT32) (1) & ((gctUINT32) ((((1 ? 15:15) - (0 ? 15:15) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 15:15) - (0 ? 15:15) + 1))))))) << (0 ? 15:15)));
+    }
+
+    if (_IsHardwareMatch(Hardware, gcv2000, 0x5108))
+    {
+        gcmkONERROR(
+            gckOS_ReadRegisterEx(Hardware->os,
+                                 Hardware->core,
+                                 0x00480,
+                                 &data));
+
+        /* Set FE bus to one, TX bus to zero */
+        data = ((((gctUINT32) (data)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 3:3) - (0 ? 3:3) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 3:3) - (0 ? 3:3) + 1))))))) << (0 ? 3:3))) | (((gctUINT32) ((gctUINT32) (1) & ((gctUINT32) ((((1 ? 3:3) - (0 ? 3:3) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 3:3) - (0 ? 3:3) + 1))))))) << (0 ? 3:3)));
+        data = ((((gctUINT32) (data)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 7:7) - (0 ? 7:7) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 7:7) - (0 ? 7:7) + 1))))))) << (0 ? 7:7))) | (((gctUINT32) ((gctUINT32) (0) & ((gctUINT32) ((((1 ? 7:7) - (0 ? 7:7) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 7:7) - (0 ? 7:7) + 1))))))) << (0 ? 7:7)));
+
+        gcmkONERROR(
+            gckOS_WriteRegisterEx(Hardware->os,
+                                  Hardware->core,
+                                  0x00480,
+                                  data));
+    }
+
+    gcmkONERROR(
+        gckHARDWARE_SetMMU(Hardware,
+                           Hardware->kernel->mmu->pageTableLogical));
+
+    if (Hardware->identity.chipModel >= gcv400
+    &&  Hardware->identity.chipModel != gcv420
+    &&  (((((gctUINT32) (Hardware->identity.chipMinorFeatures3)) >> (0 ? 15:15) & ((gctUINT32) ((((1 ? 15:15) - (0 ? 15:15) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 15:15) - (0 ? 15:15) + 1)))))) == (0x1 & ((gctUINT32) ((((1 ? 15:15) - (0 ? 15:15) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 15:15) - (0 ? 15:15) + 1))))))) != gcvTRUE)
+    )
+    {
+        if (regPMC == 0)
+        {
+        gcmkONERROR(
+            gckOS_ReadRegisterEx(Hardware->os,
+                                 Hardware->core,
+                                 Hardware->powerBaseAddress
+                                 + 0x00104,
+                                 &regPMC));
+        }
+
+        /* Disable PA clock gating. */
+        regPMC = ((((gctUINT32) (regPMC)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 4:4) - (0 ? 4:4) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 4:4) - (0 ? 4:4) + 1))))))) << (0 ? 4:4))) | (((gctUINT32) ((gctUINT32) (1) & ((gctUINT32) ((((1 ? 4:4) - (0 ? 4:4) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 4:4) - (0 ? 4:4) + 1))))))) << (0 ? 4:4)));
+    }
+
+    /* Limit 2D outstanding request. */
+    if (_IsHardwareMatch(Hardware, gcv880, 0x5107))
+    {
+        gctUINT32 axi_ot;
+        gcmkONERROR(gckOS_ReadRegisterEx(Hardware->os, Hardware->core, 0x00414, &axi_ot));
+        axi_ot = (axi_ot & (~0xFF)) | 0x00010;
+        gcmkONERROR(gckOS_WriteRegisterEx(Hardware->os, Hardware->core, 0x00414, axi_ot));
+    }
+
+    if (Hardware->identity.chip2DControl & 0xFF)
+    {
+        gctUINT32 data;
+
+        gcmkONERROR(
+            gckOS_ReadRegisterEx(Hardware->os,
+                                 Hardware->core,
+                                 0x00414,
+                                 &data));
+
+        data = ((((gctUINT32) (data)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 7:0) - (0 ? 7:0) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 7:0) - (0 ? 7:0) + 1))))))) << (0 ? 7:0))) | (((gctUINT32) ((gctUINT32) (Hardware->identity.chip2DControl & 0xFF) & ((gctUINT32) ((((1 ? 7:0) - (0 ? 7:0) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 7:0) - (0 ? 7:0) + 1))))))) << (0 ? 7:0)));
+
+        gcmkONERROR(
+            gckOS_WriteRegisterEx(Hardware->os,
+                                  Hardware->core,
+                                  0x00414,
+                                  data));
+    }
+
+    if (_IsHardwareMatch(Hardware, gcv1000, 0x5035))
+    {
+        gcmkONERROR(
+            gckOS_ReadRegisterEx(Hardware->os,
+                                 Hardware->core,
+                                 0x00414,
+                                 &data));
+
+        /* Disable HZ-L2. */
+        data = ((((gctUINT32) (data)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 12:12) - (0 ? 12:12) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 12:12) - (0 ? 12:12) + 1))))))) << (0 ? 12:12))) | (((gctUINT32) ((gctUINT32) (1) & ((gctUINT32) ((((1 ? 12:12) - (0 ? 12:12) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 12:12) - (0 ? 12:12) + 1))))))) << (0 ? 12:12)));
+
+        gcmkONERROR(
+            gckOS_WriteRegisterEx(Hardware->os,
+                                  Hardware->core,
+                                  0x00414,
+                                  data));
+    }
+
+    if (_IsHardwareMatch(Hardware, gcv4000, 0x5222)
+     || _IsHardwareMatch(Hardware, gcv2000, 0x5108)
+    )
+    {
+        if (regPMC == 0)
+        {
+        gcmkONERROR(
+            gckOS_ReadRegisterEx(Hardware->os,
+                                 Hardware->core,
+                                 Hardware->powerBaseAddress
+                                 + 0x00104,
+                                 &regPMC));
+        }
+
+        /* Disable TX clock gating. */
+        regPMC = ((((gctUINT32) (regPMC)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 7:7) - (0 ? 7:7) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 7:7) - (0 ? 7:7) + 1))))))) << (0 ? 7:7))) | (((gctUINT32) ((gctUINT32) (1) & ((gctUINT32) ((((1 ? 7:7) - (0 ? 7:7) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 7:7) - (0 ? 7:7) + 1))))))) << (0 ? 7:7)));
+    }
+
+    if (_IsHardwareMatch(Hardware, gcv880, 0x5106))
+    {
+        Hardware->kernel->timeOut = 140 * 1000;
+    }
+
+    if (regPMC == 0)
+    {
+        gcmkONERROR(
+            gckOS_ReadRegisterEx(Hardware->os,
+                                 Hardware->core,
+                                 Hardware->powerBaseAddress
+                                 + 0x00104,
+                                 &regPMC));
+    }
+
+    /* Disable RA HZ clock gating. */
+    regPMC = ((((gctUINT32) (regPMC)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 17:17) - (0 ? 17:17) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 17:17) - (0 ? 17:17) + 1))))))) << (0 ? 17:17))) | (((gctUINT32) ((gctUINT32) (1) & ((gctUINT32) ((((1 ? 17:17) - (0 ? 17:17) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 17:17) - (0 ? 17:17) + 1))))))) << (0 ? 17:17)));
+
+    /* Disable RA EZ clock gating. */
+    regPMC = ((((gctUINT32) (regPMC)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 16:16) - (0 ? 16:16) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 16:16) - (0 ? 16:16) + 1))))))) << (0 ? 16:16))) | (((gctUINT32) ((gctUINT32) (1) & ((gctUINT32) ((((1 ? 16:16) - (0 ? 16:16) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 16:16) - (0 ? 16:16) + 1))))))) << (0 ? 16:16)));
+
+    if (regPMC != 0)
+    {
+        gcmkONERROR(
+            gckOS_WriteRegisterEx(Hardware->os,
+                                  Hardware->core,
+                                  Hardware->powerBaseAddress
+                                  + 0x00104,
+                                  regPMC));
+    }
+
+    if (_IsHardwareMatch(Hardware, gcv2000, 0x5108)
+     || (_IsHardwareMatch(Hardware, gcv3000, 0x5450) && (Hardware->identity.chipFlags & gcvCHIP_FLAG_GC2000_R2))
+     || _IsHardwareMatch(Hardware, gcv320, 0x5007)
+     || _IsHardwareMatch(Hardware, gcv320, 0x5303)
+     || _IsHardwareMatch(Hardware, gcv880, 0x5106)
+     || _IsHardwareMatch(Hardware, gcv400, 0x4645)
+    )
+    {
+        /* Update GPU AXI cache atttribute. */
+        gcmkONERROR(gckOS_WriteRegisterEx(Hardware->os,
+                                          Hardware->core,
+                                          0x00008,
+                                          0x00002200));
+    }
+
+
+    if ((Hardware->identity.chipRevision > 0x5420)
+     && gckHARDWARE_IsFeatureAvailable(Hardware, gcvFEATURE_PIPE_3D))
+    {
+        gcmkONERROR(gckOS_ReadRegisterEx(Hardware->os,
+                                     Hardware->core,
+                                     0x0010C,
+                                     &data));
+
+        /* Disable internal DFS. */
+        data = ((((gctUINT32) (data)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 18:18) - (0 ? 18:18) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 18:18) - (0 ? 18:18) + 1))))))) << (0 ? 18:18))) | (((gctUINT32) ((gctUINT32) (1) & ((gctUINT32) ((((1 ? 18:18) - (0 ? 18:18) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 18:18) - (0 ? 18:18) + 1))))))) << (0 ? 18:18)));
+
+        gcmkONERROR(gckOS_WriteRegisterEx(Hardware->os,
+                                      Hardware->core,
+                                      0x0010C,
+                                      data));
+    }
+
+#if gcdDEBUG_MODULE_CLOCK_GATING
+    _ConfigureModuleLevelClockGating(Hardware);
+#endif
+
+    /* Success. */
+    gcmkFOOTER_NO();
+    return gcvSTATUS_OK;
+
+OnError:
+    /* Return the error. */
+    gcmkFOOTER();
+    return status;
+}
+
+/*******************************************************************************
+**
+**  gckHARDWARE_QueryMemory
+**
+**  Query the amount of memory available on the hardware.
+**
+**  INPUT:
+**
+**      gckHARDWARE Hardware
+**          Pointer to the gckHARDWARE object.
+**
+**  OUTPUT:
+**
+**      gctSIZE_T * InternalSize
+**          Pointer to a variable that will hold the size of the internal video
+**          memory in bytes.  If 'InternalSize' is gcvNULL, no information of the
+**          internal memory will be returned.
+**
+**      gctUINT32 * InternalBaseAddress
+**          Pointer to a variable that will hold the hardware's base address for
+**          the internal video memory.  This pointer cannot be gcvNULL if
+**          'InternalSize' is also non-gcvNULL.
+**
+**      gctUINT32 * InternalAlignment
+**          Pointer to a variable that will hold the hardware's base address for
+**          the internal video memory.  This pointer cannot be gcvNULL if
+**          'InternalSize' is also non-gcvNULL.
+**
+**      gctSIZE_T * ExternalSize
+**          Pointer to a variable that will hold the size of the external video
+**          memory in bytes.  If 'ExternalSize' is gcvNULL, no information of the
+**          external memory will be returned.
+**
+**      gctUINT32 * ExternalBaseAddress
+**          Pointer to a variable that will hold the hardware's base address for
+**          the external video memory.  This pointer cannot be gcvNULL if
+**          'ExternalSize' is also non-gcvNULL.
+**
+**      gctUINT32 * ExternalAlignment
+**          Pointer to a variable that will hold the hardware's base address for
+**          the external video memory.  This pointer cannot be gcvNULL if
+**          'ExternalSize' is also non-gcvNULL.
+**
+**      gctUINT32 * HorizontalTileSize
+**          Number of horizontal pixels per tile.  If 'HorizontalTileSize' is
+**          gcvNULL, no horizontal pixel per tile will be returned.
+**
+**      gctUINT32 * VerticalTileSize
+**          Number of vertical pixels per tile.  If 'VerticalTileSize' is
+**          gcvNULL, no vertical pixel per tile will be returned.
+*/
+gceSTATUS
+gckHARDWARE_QueryMemory(
+    IN gckHARDWARE Hardware,
+    OUT gctSIZE_T * InternalSize,
+    OUT gctUINT32 * InternalBaseAddress,
+    OUT gctUINT32 * InternalAlignment,
+    OUT gctSIZE_T * ExternalSize,
+    OUT gctUINT32 * ExternalBaseAddress,
+    OUT gctUINT32 * ExternalAlignment,
+    OUT gctUINT32 * HorizontalTileSize,
+    OUT gctUINT32 * VerticalTileSize
+    )
+{
+    gcmkHEADER_ARG("Hardware=0x%x", Hardware);
+
+    /* Verify the arguments. */
+    gcmkVERIFY_OBJECT(Hardware, gcvOBJ_HARDWARE);
+
+    if (InternalSize != gcvNULL)
+    {
+        /* No internal memory. */
+        *InternalSize = 0;
+    }
+
+    if (ExternalSize != gcvNULL)
+    {
+        /* No external memory. */
+        *ExternalSize = 0;
+    }
+
+    if (HorizontalTileSize != gcvNULL)
+    {
+        /* 4x4 tiles. */
+        *HorizontalTileSize = 4;
+    }
+
+    if (VerticalTileSize != gcvNULL)
+    {
+        /* 4x4 tiles. */
+        *VerticalTileSize = 4;
+    }
+
+    /* Success. */
+    gcmkFOOTER_ARG("*InternalSize=%lu *InternalBaseAddress=0x%08x "
+                   "*InternalAlignment=0x%08x *ExternalSize=%lu "
+                   "*ExternalBaseAddress=0x%08x *ExtenalAlignment=0x%08x "
+                   "*HorizontalTileSize=%u *VerticalTileSize=%u",
+                   gcmOPT_VALUE(InternalSize),
+                   gcmOPT_VALUE(InternalBaseAddress),
+                   gcmOPT_VALUE(InternalAlignment),
+                   gcmOPT_VALUE(ExternalSize),
+                   gcmOPT_VALUE(ExternalBaseAddress),
+                   gcmOPT_VALUE(ExternalAlignment),
+                   gcmOPT_VALUE(HorizontalTileSize),
+                   gcmOPT_VALUE(VerticalTileSize));
+    return gcvSTATUS_OK;
+}
+
+/*******************************************************************************
+**
+**  gckHARDWARE_QueryChipIdentity
+**
+**  Query the identity of the hardware.
+**
+**  INPUT:
+**
+**      gckHARDWARE Hardware
+**          Pointer to the gckHARDWARE object.
+**
+**  OUTPUT:
+**
+**      gcsHAL_QUERY_CHIP_IDENTITY_PTR Identity
+**          Pointer to the identity structure.
+**
+*/
+gceSTATUS
+gckHARDWARE_QueryChipIdentity(
+    IN gckHARDWARE Hardware,
+    OUT gcsHAL_QUERY_CHIP_IDENTITY_PTR Identity
+    )
+{
+    gctUINT32 features;
+
+    gcmkHEADER_ARG("Hardware=0x%x", Hardware);
+
+    /* Verify the arguments. */
+    gcmkVERIFY_OBJECT(Hardware, gcvOBJ_HARDWARE);
+    gcmkVERIFY_ARGUMENT(Identity != gcvNULL);
+
+    /* Return chip model and revision. */
+    Identity->chipModel = Hardware->identity.chipModel;
+    Identity->chipRevision = Hardware->identity.chipRevision;
+
+    /* Return feature set. */
+    features = Hardware->identity.chipFeatures;
+
+    if ((((((gctUINT32) (features)) >> (0 ? 0:0)) & ((gctUINT32) ((((1 ? 0:0) - (0 ? 0:0) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 0:0) - (0 ? 0:0) + 1)))))) ))
+    {
+        /* Override fast clear by command line. */
+        features = ((((gctUINT32) (features)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 0:0) - (0 ? 0:0) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 0:0) - (0 ? 0:0) + 1))))))) << (0 ? 0:0))) | (((gctUINT32) ((gctUINT32) (Hardware->allowFastClear) & ((gctUINT32) ((((1 ? 0:0) - (0 ? 0:0) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 0:0) - (0 ? 0:0) + 1))))))) << (0 ? 0:0)));
+    }
+
+    if ((((((gctUINT32) (features)) >> (0 ? 5:5)) & ((gctUINT32) ((((1 ? 5:5) - (0 ? 5:5) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 5:5) - (0 ? 5:5) + 1)))))) ))
+    {
+        /* Override compression by command line. */
+        features = ((((gctUINT32) (features)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 5:5) - (0 ? 5:5) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 5:5) - (0 ? 5:5) + 1))))))) << (0 ? 5:5))) | (((gctUINT32) ((gctUINT32) (Hardware->allowCompression) & ((gctUINT32) ((((1 ? 5:5) - (0 ? 5:5) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 5:5) - (0 ? 5:5) + 1))))))) << (0 ? 5:5)));
+    }
+
+    /* Mark 2D pipe as available for GC500.0 through GC500.2 and GC300,
+    ** since they did not have this bit. */
+    if (((Hardware->identity.chipModel == gcv500) && (Hardware->identity.chipRevision <= 2))
+    ||   (Hardware->identity.chipModel == gcv300)
+    )
+    {
+        features = ((((gctUINT32) (features)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 9:9) - (0 ? 9:9) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 9:9) - (0 ? 9:9) + 1))))))) << (0 ? 9:9))) | (((gctUINT32) (0x1 & ((gctUINT32) ((((1 ? 9:9) - (0 ? 9:9) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 9:9) - (0 ? 9:9) + 1))))))) << (0 ? 9:9)));
+    }
+
+    Identity->chipFeatures = features;
+
+    /* Return minor features. */
+    Identity->chipMinorFeatures  = Hardware->identity.chipMinorFeatures;
+    Identity->chipMinorFeatures1 = Hardware->identity.chipMinorFeatures1;
+    Identity->chipMinorFeatures2 = Hardware->identity.chipMinorFeatures2;
+    Identity->chipMinorFeatures3 = Hardware->identity.chipMinorFeatures3;
+    Identity->chipMinorFeatures4 = Hardware->identity.chipMinorFeatures4;
+    Identity->chipMinorFeatures5 = Hardware->identity.chipMinorFeatures5;
+    Identity->chipMinorFeatures6 = Hardware->identity.chipMinorFeatures6;
+
+    /* Return chip specs. */
+    Identity->streamCount            = Hardware->identity.streamCount;
+    Identity->registerMax            = Hardware->identity.registerMax;
+    Identity->threadCount            = Hardware->identity.threadCount;
+    Identity->shaderCoreCount        = Hardware->identity.shaderCoreCount;
+    Identity->vertexCacheSize        = Hardware->identity.vertexCacheSize;
+    Identity->vertexOutputBufferSize = Hardware->identity.vertexOutputBufferSize;
+    Identity->pixelPipes             = Hardware->identity.pixelPipes;
+    Identity->instructionCount       = Hardware->identity.instructionCount;
+    Identity->numConstants           = Hardware->identity.numConstants;
+    Identity->bufferSize             = Hardware->identity.bufferSize;
+    Identity->varyingsCount          = Hardware->identity.varyingsCount;
+    Identity->superTileMode          = Hardware->identity.superTileMode;
+    Identity->chip2DControl          = Hardware->identity.chip2DControl;
+
+    Identity->productID              = Hardware->identity.productID;
+    Identity->chipFlags               = Hardware->identity.chipFlags;
+
+    /* Success. */
+    gcmkFOOTER_NO();
+    return gcvSTATUS_OK;
+}
+
+/*******************************************************************************
+**
+**  gckHARDWARE_SplitMemory
+**
+**  Split a hardware specific memory address into a pool and offset.
+**
+**  INPUT:
+**
+**      gckHARDWARE Hardware
+**          Pointer to the gckHARDWARE object.
+**
+**      gctUINT32 Address
+**          Address in hardware specific format.
+**
+**  OUTPUT:
+**
+**      gcePOOL * Pool
+**          Pointer to a variable that will hold the pool type for the address.
+**
+**      gctUINT32 * Offset
+**          Pointer to a variable that will hold the offset for the address.
+*/
+gceSTATUS
+gckHARDWARE_SplitMemory(
+    IN gckHARDWARE Hardware,
+    IN gctUINT32 Address,
+    OUT gcePOOL * Pool,
+    OUT gctUINT32 * Offset
+    )
+{
+    gcmkHEADER_ARG("Hardware=0x%x Addres=0x%08x", Hardware, Address);
+
+    /* Verify the arguments. */
+    gcmkVERIFY_OBJECT(Hardware, gcvOBJ_HARDWARE);
+    gcmkVERIFY_ARGUMENT(Pool != gcvNULL);
+    gcmkVERIFY_ARGUMENT(Offset != gcvNULL);
+
+    if (Hardware->mmuVersion == 0)
+    {
+        /* Dispatch on memory type. */
+        switch ((((((gctUINT32) (Address)) >> (0 ? 31:31)) & ((gctUINT32) ((((1 ? 31:31) - (0 ? 31:31) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 31:31) - (0 ? 31:31) + 1)))))) ))
+        {
+        case 0x0:
+            /* System memory. */
+            *Pool = gcvPOOL_SYSTEM;
+            break;
+
+        case 0x1:
+            /* Virtual memory. */
+            *Pool = gcvPOOL_VIRTUAL;
+            break;
+
+        default:
+            /* Invalid memory type. */
+            gcmkFOOTER_ARG("status=%d", gcvSTATUS_INVALID_ARGUMENT);
+            return gcvSTATUS_INVALID_ARGUMENT;
+        }
+
+        /* Return offset of address. */
+        *Offset = (((((gctUINT32) (Address)) >> (0 ? 30:0)) & ((gctUINT32) ((((1 ? 30:0) - (0 ? 30:0) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 30:0) - (0 ? 30:0) + 1)))))) );
+    }
+    else
+    {
+        *Pool = gcvPOOL_SYSTEM;
+        *Offset = Address;
+    }
+
+    /* Success. */
+    gcmkFOOTER_ARG("*Pool=%d *Offset=0x%08x", *Pool, *Offset);
+    return gcvSTATUS_OK;
+}
+
+/*******************************************************************************
+**
+**  gckHARDWARE_Execute
+**
+**  Kickstart the hardware's command processor with an initialized command
+**  buffer.
+**
+**  INPUT:
+**
+**      gckHARDWARE Hardware
+**          Pointer to the gckHARDWARE object.
+**
+**      gctUINT32 Address
+**          Hardware address of command buffer.
+**
+**      gctSIZE_T Bytes
+**          Number of bytes for the prefetch unit (until after the first LINK).
+**
+**  OUTPUT:
+**
+**      Nothing.
+*/
+gceSTATUS
+gckHARDWARE_Execute(
+    IN gckHARDWARE Hardware,
+    IN gctUINT32 Address,
+    IN gctSIZE_T Bytes
+    )
+{
+    gceSTATUS status;
+    gctUINT32 control;
+
+    gcmkHEADER_ARG("Hardware=0x%x Address=0x%x Bytes=%lu",
+                   Hardware, Address, Bytes);
+
+    /* Verify the arguments. */
+    gcmkVERIFY_OBJECT(Hardware, gcvOBJ_HARDWARE);
+
+    /* Enable all events. */
+    gcmkONERROR(
+        gckOS_WriteRegisterEx(Hardware->os, Hardware->core, 0x00014, ~0U));
+
+    /* Write address register. */
+    gcmkONERROR(
+        gckOS_WriteRegisterEx(Hardware->os, Hardware->core, 0x00654, Address));
+
+    /* Build control register. */
+    control = ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 16:16) - (0 ? 16:16) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 16:16) - (0 ? 16:16) + 1))))))) << (0 ? 16:16))) | (((gctUINT32) (0x1 & ((gctUINT32) ((((1 ? 16:16) - (0 ? 16:16) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 16:16) - (0 ? 16:16) + 1))))))) << (0 ? 16:16)))
+            | ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 15:0) - (0 ? 15:0) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 15:0) - (0 ? 15:0) + 1))))))) << (0 ? 15:0))) | (((gctUINT32) ((gctUINT32) ((Bytes + 7) >> 3) & ((gctUINT32) ((((1 ? 15:0) - (0 ? 15:0) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 15:0) - (0 ? 15:0) + 1))))))) << (0 ? 15:0)));
+
+    /* Set big endian */
+    if (Hardware->bigEndian)
+    {
+        control |= ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 21:20) - (0 ? 21:20) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 21:20) - (0 ? 21:20) + 1))))))) << (0 ? 21:20))) | (((gctUINT32) (0x2 & ((gctUINT32) ((((1 ? 21:20) - (0 ? 21:20) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 21:20) - (0 ? 21:20) + 1))))))) << (0 ? 21:20)));
+    }
+
+    /* Write control register. */
+    gcmkONERROR(
+        gckOS_WriteRegisterEx(Hardware->os, Hardware->core, 0x00658, control));
+
+    /* Increase execute count. */
+    Hardware->executeCount++;
+
+    /* Record last execute address. */
+    Hardware->lastExecuteAddress = Address;
+
+    gcmkTRACE_ZONE(gcvLEVEL_INFO, gcvZONE_HARDWARE,
+                  "Started command buffer @ 0x%08x",
+                  Address);
+
+    /* Success. */
+    gcmkFOOTER_NO();
+    return gcvSTATUS_OK;
+
+OnError:
+    /* Return the status. */
+    gcmkFOOTER();
+    return status;
+}
+
+/*******************************************************************************
+**
+**  gckHARDWARE_WaitLink
+**
+**  Append a WAIT/LINK command sequence at the specified location in the command
+**  queue.
+**
+**  INPUT:
+**
+**      gckHARDWARE Hardware
+**          Pointer to an gckHARDWARE object.
+**
+**      gctPOINTER Logical
+**          Pointer to the current location inside the command queue to append
+**          WAIT/LINK command sequence at or gcvNULL just to query the size of the
+**          WAIT/LINK command sequence.
+**
+**      gctUINT32 Offset
+**          Offset into command buffer required for alignment.
+**
+**      gctSIZE_T * Bytes
+**          Pointer to the number of bytes available for the WAIT/LINK command
+**          sequence.  If 'Logical' is gcvNULL, this argument will be ignored.
+**
+**  OUTPUT:
+**
+**      gctSIZE_T * Bytes
+**          Pointer to a variable that will receive the number of bytes required
+**          by the WAIT/LINK command sequence.  If 'Bytes' is gcvNULL, nothing will
+**          be returned.
+**
+**      gctUINT32 * WaitOffset
+**          Pointer to a variable that will receive the offset of the WAIT command
+**          from the specified logcial pointer.
+**          If 'WaitOffset' is gcvNULL nothing will be returned.
+**
+**      gctSIZE_T * WaitSize
+**          Pointer to a variable that will receive the number of bytes used by
+**          the WAIT command.  If 'LinkSize' is gcvNULL nothing will be returned.
+*/
+gceSTATUS
+gckHARDWARE_WaitLink(
+    IN gckHARDWARE Hardware,
+    IN gctPOINTER Logical,
+    IN gctUINT32 Offset,
+    IN OUT gctUINT32 * Bytes,
+    OUT gctUINT32 * WaitOffset,
+    OUT gctUINT32 * WaitSize
+    )
+{
+    static const gctUINT waitCount = 200;
+
+    gceSTATUS status;
+    gctUINT32 address;
+    gctUINT32_PTR logical;
+    gctUINT32 bytes;
+
+    gcmkHEADER_ARG("Hardware=0x%x Logical=0x%x Offset=0x%08x *Bytes=%lu",
+                   Hardware, Logical, Offset, gcmOPT_VALUE(Bytes));
+
+    /* Verify the arguments. */
+    gcmkVERIFY_OBJECT(Hardware, gcvOBJ_HARDWARE);
+    gcmkVERIFY_ARGUMENT((Logical != gcvNULL) || (Bytes != gcvNULL));
+
+    /* Compute number of bytes required. */
+    bytes = gcmALIGN(Offset + 16, 8) - Offset;
+    /* Cast the input pointer. */
+    logical = (gctUINT32_PTR) Logical;
+
+    if (logical != gcvNULL)
+    {
+        /* Not enough space? */
+        if (*Bytes < bytes)
+        {
+            /* Command queue too small. */
+            gcmkONERROR(gcvSTATUS_BUFFER_TOO_SMALL);
+        }
+
+        /* Convert logical into hardware specific address. */
+        gcmkONERROR(gckHARDWARE_ConvertLogical(Hardware, logical, gcvFALSE, &address));
+
+        /* Store the WAIT/LINK address. */
+        Hardware->lastWaitLink = address;
+
+        /* Append WAIT(count). */
+        logical[0]
+            = ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 31:27) - (0 ? 31:27) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 31:27) - (0 ? 31:27) + 1))))))) << (0 ? 31:27))) | (((gctUINT32) (0x07 & ((gctUINT32) ((((1 ? 31:27) - (0 ? 31:27) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 31:27) - (0 ? 31:27) + 1))))))) << (0 ? 31:27)))
+            | ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 15:0) - (0 ? 15:0) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 15:0) - (0 ? 15:0) + 1))))))) << (0 ? 15:0))) | (((gctUINT32) ((gctUINT32) (waitCount) & ((gctUINT32) ((((1 ? 15:0) - (0 ? 15:0) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 15:0) - (0 ? 15:0) + 1))))))) << (0 ? 15:0)));
+
+
+        /* Append LINK(2, address). */
+        logical[2]
+            = ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 31:27) - (0 ? 31:27) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 31:27) - (0 ? 31:27) + 1))))))) << (0 ? 31:27))) | (((gctUINT32) (0x08 & ((gctUINT32) ((((1 ? 31:27) - (0 ? 31:27) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 31:27) - (0 ? 31:27) + 1))))))) << (0 ? 31:27)))
+            | ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 15:0) - (0 ? 15:0) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 15:0) - (0 ? 15:0) + 1))))))) << (0 ? 15:0))) | (((gctUINT32) ((gctUINT32) (bytes >> 3) & ((gctUINT32) ((((1 ? 15:0) - (0 ? 15:0) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 15:0) - (0 ? 15:0) + 1))))))) << (0 ? 15:0)));
+
+        logical[3] = address;
+
+        gcmkTRACE_ZONE(
+            gcvLEVEL_INFO, gcvZONE_HARDWARE,
+            "0x%08x: WAIT %u", address, waitCount
+            );
+
+        gcmkTRACE_ZONE(
+            gcvLEVEL_INFO, gcvZONE_HARDWARE,
+            "0x%08x: LINK 0x%08x, #%lu",
+            address + 8, address, bytes
+            );
+        if (WaitOffset != gcvNULL)
+        {
+            /* Return the offset pointer to WAIT command. */
+            *WaitOffset = 0;
+        }
+
+        if (WaitSize != gcvNULL)
+        {
+            /* Return number of bytes used by the WAIT command. */
+            *WaitSize = 8;
+        }
+    }
+
+    if (Bytes != gcvNULL)
+    {
+        /* Return number of bytes required by the WAIT/LINK command
+        ** sequence. */
+        *Bytes = bytes;
+    }
+
+    /* Success. */
+    gcmkFOOTER_ARG("*Bytes=%lu *WaitOffset=0x%x *WaitSize=%lu",
+                   gcmOPT_VALUE(Bytes), gcmOPT_VALUE(WaitOffset),
+                   gcmOPT_VALUE(WaitSize));
+    return gcvSTATUS_OK;
+
+OnError:
+    /* Return the status. */
+    gcmkFOOTER();
+    return status;
+}
+
+/*******************************************************************************
+**
+**  gckHARDWARE_End
+**
+**  Append an END command at the specified location in the command queue.
+**
+**  INPUT:
+**
+**      gckHARDWARE Hardware
+**          Pointer to an gckHARDWARE object.
+**
+**      gctPOINTER Logical
+**          Pointer to the current location inside the command queue to append
+**          END command at or gcvNULL just to query the size of the END command.
+**
+**      gctSIZE_T * Bytes
+**          Pointer to the number of bytes available for the END command.  If
+**          'Logical' is gcvNULL, this argument will be ignored.
+**
+**  OUTPUT:
+**
+**      gctSIZE_T * Bytes
+**          Pointer to a variable that will receive the number of bytes required
+**          for the END command.  If 'Bytes' is gcvNULL, nothing will be returned.
+*/
+gceSTATUS
+gckHARDWARE_End(
+    IN gckHARDWARE Hardware,
+    IN gctPOINTER Logical,
+    IN OUT gctUINT32 * Bytes
+    )
+{
+    gctUINT32_PTR logical = (gctUINT32_PTR) Logical;
+    gctUINT32 address;
+    gceSTATUS status;
+
+    gcmkHEADER_ARG("Hardware=0x%x Logical=0x%x *Bytes=%lu",
+                   Hardware, Logical, gcmOPT_VALUE(Bytes));
+
+    /* Verify the arguments. */
+    gcmkVERIFY_OBJECT(Hardware, gcvOBJ_HARDWARE);
+    gcmkVERIFY_ARGUMENT((Logical == gcvNULL) || (Bytes != gcvNULL));
+
+    if (Logical != gcvNULL)
+    {
+        if (*Bytes < 8)
+        {
+            /* Command queue too small. */
+            gcmkONERROR(gcvSTATUS_BUFFER_TOO_SMALL);
+        }
+
+        /* Append END. */
+       logical[0] =
+            ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 31:27) - (0 ? 31:27) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 31:27) - (0 ? 31:27) + 1))))))) << (0 ? 31:27))) | (((gctUINT32) (0x02 & ((gctUINT32) ((((1 ? 31:27) - (0 ? 31:27) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 31:27) - (0 ? 31:27) + 1))))))) << (0 ? 31:27)));
+
+        /* Record the count of execution which is finised by this END. */
+        logical[1] =
+            Hardware->executeCount;
+
+        gcmkTRACE_ZONE(gcvLEVEL_INFO, gcvZONE_HARDWARE, "0x%x: END", Logical);
+
+        /* Make sure the CPU writes out the data to memory. */
+        gcmkONERROR(
+            gckOS_MemoryBarrier(Hardware->os, Logical));
+
+        gcmkONERROR(gckHARDWARE_ConvertLogical(Hardware, logical, gcvFALSE, &address));
+
+        Hardware->lastEnd = address;
+    }
+
+    if (Bytes != gcvNULL)
+    {
+        /* Return number of bytes required by the END command. */
+        *Bytes = 8;
+    }
+
+    /* Success. */
+    gcmkFOOTER_ARG("*Bytes=%lu", gcmOPT_VALUE(Bytes));
+    return gcvSTATUS_OK;
+
+OnError:
+    /* Return the status. */
+    gcmkFOOTER();
+    return status;
+}
+
+
+/*******************************************************************************
+**
+**  gckHARDWARE_Nop
+**
+**  Append a NOP command at the specified location in the command queue.
+**
+**  INPUT:
+**
+**      gckHARDWARE Hardware
+**          Pointer to an gckHARDWARE object.
+**
+**      gctPOINTER Logical
+**          Pointer to the current location inside the command queue to append
+**          NOP command at or gcvNULL just to query the size of the NOP command.
+**
+**      gctSIZE_T * Bytes
+**          Pointer to the number of bytes available for the NOP command.  If
+**          'Logical' is gcvNULL, this argument will be ignored.
+**
+**  OUTPUT:
+**
+**      gctSIZE_T * Bytes
+**          Pointer to a variable that will receive the number of bytes required
+**          for the NOP command.  If 'Bytes' is gcvNULL, nothing will be returned.
+*/
+gceSTATUS
+gckHARDWARE_Nop(
+    IN gckHARDWARE Hardware,
+    IN gctPOINTER Logical,
+    IN OUT gctSIZE_T * Bytes
+    )
+{
+    gctUINT32_PTR logical = (gctUINT32_PTR) Logical;
+    gceSTATUS status;
+
+    gcmkHEADER_ARG("Hardware=0x%x Logical=0x%x *Bytes=%lu",
+                   Hardware, Logical, gcmOPT_VALUE(Bytes));
+
+    /* Verify the arguments. */
+    gcmkVERIFY_OBJECT(Hardware, gcvOBJ_HARDWARE);
+    gcmkVERIFY_ARGUMENT((Logical == gcvNULL) || (Bytes != gcvNULL));
+
+    if (Logical != gcvNULL)
+    {
+        if (*Bytes < 8)
+        {
+            /* Command queue too small. */
+            gcmkONERROR(gcvSTATUS_BUFFER_TOO_SMALL);
+        }
+
+        /* Append NOP. */
+        logical[0] = ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 31:27) - (0 ? 31:27) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 31:27) - (0 ? 31:27) + 1))))))) << (0 ? 31:27))) | (((gctUINT32) (0x03 & ((gctUINT32) ((((1 ? 31:27) - (0 ? 31:27) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 31:27) - (0 ? 31:27) + 1))))))) << (0 ? 31:27)));
+
+        gcmkTRACE_ZONE(gcvLEVEL_INFO, gcvZONE_HARDWARE, "0x%x: NOP", Logical);
+    }
+
+    if (Bytes != gcvNULL)
+    {
+        /* Return number of bytes required by the NOP command. */
+        *Bytes = 8;
+    }
+
+    /* Success. */
+    gcmkFOOTER_ARG("*Bytes=%lu", gcmOPT_VALUE(Bytes));
+    return gcvSTATUS_OK;
+
+OnError:
+    /* Return the status. */
+    gcmkFOOTER();
+    return status;
+}
+
+/*******************************************************************************
+**
+**  gckHARDWARE_Event
+**
+**  Append an EVENT command at the specified location in the command queue.
+**
+**  INPUT:
+**
+**      gckHARDWARE Hardware
+**          Pointer to an gckHARDWARE object.
+**
+**      gctPOINTER Logical
+**          Pointer to the current location inside the command queue to append
+**          the EVENT command at or gcvNULL just to query the size of the EVENT
+**          command.
+**
+**      gctUINT8 Event
+**          Event ID to program.
+**
+**      gceKERNEL_WHERE FromWhere
+**          Location of the pipe to send the event.
+**
+**      gctSIZE_T * Bytes
+**          Pointer to the number of bytes available for the EVENT command.  If
+**          'Logical' is gcvNULL, this argument will be ignored.
+**
+**  OUTPUT:
+**
+**      gctSIZE_T * Bytes
+**          Pointer to a variable that will receive the number of bytes required
+**          for the EVENT command.  If 'Bytes' is gcvNULL, nothing will be
+**          returned.
+*/
+gceSTATUS
+gckHARDWARE_Event(
+    IN gckHARDWARE Hardware,
+    IN gctPOINTER Logical,
+    IN gctUINT8 Event,
+    IN gceKERNEL_WHERE FromWhere,
+    IN OUT gctUINT32 * Bytes
+    )
+{
+    gctUINT size;
+    gctUINT32 destination = 0;
+    gctUINT32_PTR logical = (gctUINT32_PTR) Logical;
+    gceSTATUS status;
+
+    gcmkHEADER_ARG("Hardware=0x%x Logical=0x%x Event=%u FromWhere=%d *Bytes=%lu",
+                   Hardware, Logical, Event, FromWhere, gcmOPT_VALUE(Bytes));
+
+    /* Verify the arguments. */
+    gcmkVERIFY_OBJECT(Hardware, gcvOBJ_HARDWARE);
+    gcmkVERIFY_ARGUMENT((Logical == gcvNULL) || (Bytes != gcvNULL));
+    gcmkVERIFY_ARGUMENT(Event < 32);
+
+
+    /* Determine the size of the command. */
+
+    size = (Hardware->extraEventStates && (FromWhere == gcvKERNEL_PIXEL))
+         ? gcmALIGN(8 + (1 + 5) * 4, 8) /* EVENT + 5 STATES */
+         : 8;
+
+    if (Logical != gcvNULL)
+    {
+        if (*Bytes < size)
+        {
+            /* Command queue too small. */
+            gcmkONERROR(gcvSTATUS_BUFFER_TOO_SMALL);
+        }
+
+        switch (FromWhere)
+        {
+        case gcvKERNEL_COMMAND:
+            /* From command processor. */
+            destination = ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 5:5) - (0 ? 5:5) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 5:5) - (0 ? 5:5) + 1))))))) << (0 ? 5:5))) | (((gctUINT32) (0x1 & ((gctUINT32) ((((1 ? 5:5) - (0 ? 5:5) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 5:5) - (0 ? 5:5) + 1))))))) << (0 ? 5:5)));
+            break;
+
+        case gcvKERNEL_PIXEL:
+            /* From pixel engine. */
+            destination = ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 6:6) - (0 ? 6:6) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 6:6) - (0 ? 6:6) + 1))))))) << (0 ? 6:6))) | (((gctUINT32) (0x1 & ((gctUINT32) ((((1 ? 6:6) - (0 ? 6:6) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 6:6) - (0 ? 6:6) + 1))))))) << (0 ? 6:6)));
+            break;
+
+        default:
+            gcmkONERROR(gcvSTATUS_INVALID_ARGUMENT);
+        }
+
+        /* Append EVENT(Event, destiantion). */
+        logical[0] = ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 31:27) - (0 ? 31:27) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 31:27) - (0 ? 31:27) + 1))))))) << (0 ? 31:27))) | (((gctUINT32) (0x01 & ((gctUINT32) ((((1 ? 31:27) - (0 ? 31:27) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 31:27) - (0 ? 31:27) + 1))))))) << (0 ? 31:27)))
+                   | ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 15:0) - (0 ? 15:0) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 15:0) - (0 ? 15:0) + 1))))))) << (0 ? 15:0))) | (((gctUINT32) ((gctUINT32) (0x0E01) & ((gctUINT32) ((((1 ? 15:0) - (0 ? 15:0) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 15:0) - (0 ? 15:0) + 1))))))) << (0 ? 15:0)))
+                   | ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 25:16) - (0 ? 25:16) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 25:16) - (0 ? 25:16) + 1))))))) << (0 ? 25:16))) | (((gctUINT32) ((gctUINT32) (1) & ((gctUINT32) ((((1 ? 25:16) - (0 ? 25:16) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 25:16) - (0 ? 25:16) + 1))))))) << (0 ? 25:16)));
+
+        logical[1] = ((((gctUINT32) (destination)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 4:0) - (0 ? 4:0) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 4:0) - (0 ? 4:0) + 1))))))) << (0 ? 4:0))) | (((gctUINT32) ((gctUINT32) (Event) & ((gctUINT32) ((((1 ? 4:0) - (0 ? 4:0) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 4:0) - (0 ? 4:0) + 1))))))) << (0 ? 4:0)));
+
+        /* Make sure the event ID gets written out before GPU can access it. */
+        gcmkONERROR(
+            gckOS_MemoryBarrier(Hardware->os, logical + 1));
+
+#if gcmIS_DEBUG(gcdDEBUG_TRACE)
+        {
+            gctPHYS_ADDR_T phys;
+            gckOS_GetPhysicalAddress(Hardware->os, Logical, &phys);
+            gcmkTRACE_ZONE(gcvLEVEL_INFO, gcvZONE_HARDWARE,
+                           "0x%08x: EVENT %d", phys, Event);
+        }
+#endif
+
+        /* Append the extra states. These are needed for the chips that do not
+        ** support back-to-back events due to the async interface. The extra
+        ** states add the necessary delay to ensure that event IDs do not
+        ** collide. */
+        if (size > 8)
+        {
+            logical[2] = ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 31:27) - (0 ? 31:27) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 31:27) - (0 ? 31:27) + 1))))))) << (0 ? 31:27))) | (((gctUINT32) (0x01 & ((gctUINT32) ((((1 ? 31:27) - (0 ? 31:27) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 31:27) - (0 ? 31:27) + 1))))))) << (0 ? 31:27)))
+                       | ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 15:0) - (0 ? 15:0) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 15:0) - (0 ? 15:0) + 1))))))) << (0 ? 15:0))) | (((gctUINT32) ((gctUINT32) (0x0100) & ((gctUINT32) ((((1 ? 15:0) - (0 ? 15:0) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 15:0) - (0 ? 15:0) + 1))))))) << (0 ? 15:0)))
+                       | ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 25:16) - (0 ? 25:16) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 25:16) - (0 ? 25:16) + 1))))))) << (0 ? 25:16))) | (((gctUINT32) ((gctUINT32) (5) & ((gctUINT32) ((((1 ? 25:16) - (0 ? 25:16) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 25:16) - (0 ? 25:16) + 1))))))) << (0 ? 25:16)));
+            logical[3] = 0;
+            logical[4] = 0;
+            logical[5] = 0;
+            logical[6] = 0;
+            logical[7] = 0;
+        }
+
+#if gcdINTERRUPT_STATISTIC
+        if (Event < gcmCOUNTOF(Hardware->kernel->eventObj->queues))
+        {
+            gckOS_AtomSetMask(Hardware->pendingEvent, 1 << Event);
+        }
+#endif
+    }
+
+    if (Bytes != gcvNULL)
+    {
+        /* Return number of bytes required by the EVENT command. */
+        *Bytes = size;
+    }
+
+    /* Success. */
+    gcmkFOOTER_ARG("*Bytes=%lu", gcmOPT_VALUE(Bytes));
+    return gcvSTATUS_OK;
+
+OnError:
+    /* Return the status. */
+    gcmkFOOTER();
+    return status;
+}
+
+/*******************************************************************************
+**
+**  gckHARDWARE_PipeSelect
+**
+**  Append a PIPESELECT command at the specified location in the command queue.
+**
+**  INPUT:
+**
+**      gckHARDWARE Hardware
+**          Pointer to an gckHARDWARE object.
+**
+**      gctPOINTER Logical
+**          Pointer to the current location inside the command queue to append
+**          the PIPESELECT command at or gcvNULL just to query the size of the
+**          PIPESELECT command.
+**
+**      gcePIPE_SELECT Pipe
+**          Pipe value to select.
+**
+**      gctSIZE_T * Bytes
+**          Pointer to the number of bytes available for the PIPESELECT command.
+**          If 'Logical' is gcvNULL, this argument will be ignored.
+**
+**  OUTPUT:
+**
+**      gctSIZE_T * Bytes
+**          Pointer to a variable that will receive the number of bytes required
+**          for the PIPESELECT command.  If 'Bytes' is gcvNULL, nothing will be
+**          returned.
+*/
+gceSTATUS
+gckHARDWARE_PipeSelect(
+    IN gckHARDWARE Hardware,
+    IN gctPOINTER Logical,
+    IN gcePIPE_SELECT Pipe,
+    IN OUT gctUINT32 * Bytes
+    )
+{
+    gctUINT32_PTR logical = (gctUINT32_PTR) Logical;
+    gceSTATUS status;
+
+    gcmkHEADER_ARG("Hardware=0x%x Logical=0x%x Pipe=%d *Bytes=%lu",
+                   Hardware, Logical, Pipe, gcmOPT_VALUE(Bytes));
+
+    /* Verify the arguments. */
+    gcmkVERIFY_OBJECT(Hardware, gcvOBJ_HARDWARE);
+    gcmkVERIFY_ARGUMENT((Logical == gcvNULL) || (Bytes != gcvNULL));
+
+    /* Append a PipeSelect. */
+    if (Logical != gcvNULL)
+    {
+        gctUINT32 flush, stall;
+
+        if (*Bytes < 32)
+        {
+            /* Command queue too small. */
+            gcmkONERROR(gcvSTATUS_BUFFER_TOO_SMALL);
+        }
+
+        flush = (Pipe == gcvPIPE_2D)
+              ? ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 1:1) - (0 ? 1:1) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 1:1) - (0 ? 1:1) + 1))))))) << (0 ? 1:1))) | (((gctUINT32) (0x1 & ((gctUINT32) ((((1 ? 1:1) - (0 ? 1:1) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 1:1) - (0 ? 1:1) + 1))))))) << (0 ? 1:1)))
+              | ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 0:0) - (0 ? 0:0) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 0:0) - (0 ? 0:0) + 1))))))) << (0 ? 0:0))) | (((gctUINT32) (0x1 & ((gctUINT32) ((((1 ? 0:0) - (0 ? 0:0) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 0:0) - (0 ? 0:0) + 1))))))) << (0 ? 0:0)))
+              : ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 3:3) - (0 ? 3:3) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 3:3) - (0 ? 3:3) + 1))))))) << (0 ? 3:3))) | (((gctUINT32) (0x1 & ((gctUINT32) ((((1 ? 3:3) - (0 ? 3:3) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 3:3) - (0 ? 3:3) + 1))))))) << (0 ? 3:3)));
+
+        stall = ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 4:0) - (0 ? 4:0) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 4:0) - (0 ? 4:0) + 1))))))) << (0 ? 4:0))) | (((gctUINT32) (0x01 & ((gctUINT32) ((((1 ? 4:0) - (0 ? 4:0) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 4:0) - (0 ? 4:0) + 1))))))) << (0 ? 4:0)))
+              | ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 12:8) - (0 ? 12:8) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 12:8) - (0 ? 12:8) + 1))))))) << (0 ? 12:8))) | (((gctUINT32) (0x07 & ((gctUINT32) ((((1 ? 12:8) - (0 ? 12:8) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 12:8) - (0 ? 12:8) + 1))))))) << (0 ? 12:8)));
+
+        /* LoadState(AQFlush, 1), flush. */
+        logical[0]
+            = ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 31:27) - (0 ? 31:27) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 31:27) - (0 ? 31:27) + 1))))))) << (0 ? 31:27))) | (((gctUINT32) (0x01 & ((gctUINT32) ((((1 ? 31:27) - (0 ? 31:27) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 31:27) - (0 ? 31:27) + 1))))))) << (0 ? 31:27)))
+            | ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 15:0) - (0 ? 15:0) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 15:0) - (0 ? 15:0) + 1))))))) << (0 ? 15:0))) | (((gctUINT32) ((gctUINT32) (0x0E03) & ((gctUINT32) ((((1 ? 15:0) - (0 ? 15:0) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 15:0) - (0 ? 15:0) + 1))))))) << (0 ? 15:0)))
+            | ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 25:16) - (0 ? 25:16) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 25:16) - (0 ? 25:16) + 1))))))) << (0 ? 25:16))) | (((gctUINT32) ((gctUINT32) (1) & ((gctUINT32) ((((1 ? 25:16) - (0 ? 25:16) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 25:16) - (0 ? 25:16) + 1))))))) << (0 ? 25:16)));
+
+        logical[1]
+            = flush;
+
+        gcmkTRACE_ZONE(gcvLEVEL_INFO, gcvZONE_HARDWARE,
+                       "0x%x: FLUSH 0x%x", logical, flush);
+
+        /* LoadState(AQSempahore, 1), stall. */
+        logical[2]
+            = ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 31:27) - (0 ? 31:27) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 31:27) - (0 ? 31:27) + 1))))))) << (0 ? 31:27))) | (((gctUINT32) (0x01 & ((gctUINT32) ((((1 ? 31:27) - (0 ? 31:27) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 31:27) - (0 ? 31:27) + 1))))))) << (0 ? 31:27)))
+            | ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 25:16) - (0 ? 25:16) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 25:16) - (0 ? 25:16) + 1))))))) << (0 ? 25:16))) | (((gctUINT32) ((gctUINT32) (1) & ((gctUINT32) ((((1 ? 25:16) - (0 ? 25:16) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 25:16) - (0 ? 25:16) + 1))))))) << (0 ? 25:16)))
+            | ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 15:0) - (0 ? 15:0) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 15:0) - (0 ? 15:0) + 1))))))) << (0 ? 15:0))) | (((gctUINT32) ((gctUINT32) (0x0E02) & ((gctUINT32) ((((1 ? 15:0) - (0 ? 15:0) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 15:0) - (0 ? 15:0) + 1))))))) << (0 ? 15:0)));
+
+        logical[3]
+            = stall;
+
+        gcmkTRACE_ZONE(gcvLEVEL_INFO, gcvZONE_HARDWARE,
+                       "0x%x: SEMAPHORE 0x%x", logical + 2, stall);
+
+        /* Stall, stall. */
+        logical[4] = ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 31:27) - (0 ? 31:27) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 31:27) - (0 ? 31:27) + 1))))))) << (0 ? 31:27))) | (((gctUINT32) (0x09 & ((gctUINT32) ((((1 ? 31:27) - (0 ? 31:27) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 31:27) - (0 ? 31:27) + 1))))))) << (0 ? 31:27)));
+        logical[5] = stall;
+
+        gcmkTRACE_ZONE(gcvLEVEL_INFO, gcvZONE_HARDWARE,
+                       "0x%x: STALL 0x%x", logical + 4, stall);
+
+        /* LoadState(AQPipeSelect, 1), pipe. */
+        logical[6]
+            = ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 31:27) - (0 ? 31:27) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 31:27) - (0 ? 31:27) + 1))))))) << (0 ? 31:27))) | (((gctUINT32) (0x01 & ((gctUINT32) ((((1 ? 31:27) - (0 ? 31:27) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 31:27) - (0 ? 31:27) + 1))))))) << (0 ? 31:27)))
+            | ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 15:0) - (0 ? 15:0) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 15:0) - (0 ? 15:0) + 1))))))) << (0 ? 15:0))) | (((gctUINT32) ((gctUINT32) (0x0E00) & ((gctUINT32) ((((1 ? 15:0) - (0 ? 15:0) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 15:0) - (0 ? 15:0) + 1))))))) << (0 ? 15:0)))
+            | ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 25:16) - (0 ? 25:16) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 25:16) - (0 ? 25:16) + 1))))))) << (0 ? 25:16))) | (((gctUINT32) ((gctUINT32) (1) & ((gctUINT32) ((((1 ? 25:16) - (0 ? 25:16) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 25:16) - (0 ? 25:16) + 1))))))) << (0 ? 25:16)));
+
+        logical[7] = (Pipe == gcvPIPE_2D)
+            ? 0x1
+            : 0x0;
+
+        gcmkTRACE_ZONE(gcvLEVEL_INFO, gcvZONE_HARDWARE,
+                       "0x%x: PIPE %d", logical + 6, Pipe);
+    }
+
+    if (Bytes != gcvNULL)
+    {
+        /* Return number of bytes required by the PIPESELECT command. */
+        *Bytes = 32;
+    }
+
+    /* Success. */
+    gcmkFOOTER_ARG("*Bytes=%lu", gcmOPT_VALUE(Bytes));
+    return gcvSTATUS_OK;
+
+OnError:
+    /* Return the status. */
+    gcmkFOOTER();
+    return status;
+}
+
+/*******************************************************************************
+**
+**  gckHARDWARE_Link
+**
+**  Append a LINK command at the specified location in the command queue.
+**
+**  INPUT:
+**
+**      gckHARDWARE Hardware
+**          Pointer to an gckHARDWARE object.
+**
+**      gctPOINTER Logical
+**          Pointer to the current location inside the command queue to append
+**          the LINK command at or gcvNULL just to query the size of the LINK
+**          command.
+**
+**      gctUINT32 FetchAddress
+**          Hardware address of destination of LINK.
+**
+**      gctSIZE_T FetchSize
+**          Number of bytes in destination of LINK.
+**
+**      gctSIZE_T * Bytes
+**          Pointer to the number of bytes available for the LINK command.  If
+**          'Logical' is gcvNULL, this argument will be ignored.
+**
+**  OUTPUT:
+**
+**      gctSIZE_T * Bytes
+**          Pointer to a variable that will receive the number of bytes required
+**          for the LINK command.  If 'Bytes' is gcvNULL, nothing will be returned.
+*/
+gceSTATUS
+gckHARDWARE_Link(
+    IN gckHARDWARE Hardware,
+    IN gctPOINTER Logical,
+    IN gctUINT32 FetchAddress,
+    IN gctUINT32 FetchSize,
+    IN OUT gctUINT32 * Bytes,
+    OUT gctUINT32 * Low,
+    OUT gctUINT32 * High
+    )
+{
+    gceSTATUS status;
+    gctSIZE_T bytes;
+    gctUINT32 link;
+    gctUINT32_PTR logical = (gctUINT32_PTR) Logical;
+
+    gcmkHEADER_ARG("Hardware=0x%x Logical=0x%x FetchAddress=0x%x FetchSize=%lu "
+                   "*Bytes=%lu",
+                   Hardware, Logical, FetchAddress, FetchSize,
+                   gcmOPT_VALUE(Bytes));
+
+    /* Verify the arguments. */
+    gcmkVERIFY_OBJECT(Hardware, gcvOBJ_HARDWARE);
+    gcmkVERIFY_ARGUMENT((Logical == gcvNULL) || (Bytes != gcvNULL));
+
+    if (Logical != gcvNULL)
+    {
+        if (*Bytes < 8)
+        {
+            /* Command queue too small. */
+            gcmkONERROR(gcvSTATUS_BUFFER_TOO_SMALL);
+        }
+
+        gcmkONERROR(
+            gckOS_WriteMemory(Hardware->os, logical + 1, FetchAddress));
+
+        if (High)
+        {
+            *High = FetchAddress;
+        }
+
+        /* Make sure the address got written before the LINK command. */
+        gcmkONERROR(
+            gckOS_MemoryBarrier(Hardware->os, logical + 1));
+
+        /* Compute number of 64-byte aligned bytes to fetch. */
+        bytes = gcmALIGN(FetchAddress + FetchSize, 64) - FetchAddress;
+
+        /* Append LINK(bytes / 8), FetchAddress. */
+        link = ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 31:27) - (0 ? 31:27) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 31:27) - (0 ? 31:27) + 1))))))) << (0 ? 31:27))) | (((gctUINT32) (0x08 & ((gctUINT32) ((((1 ? 31:27) - (0 ? 31:27) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 31:27) - (0 ? 31:27) + 1))))))) << (0 ? 31:27)))
+             | ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 15:0) - (0 ? 15:0) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 15:0) - (0 ? 15:0) + 1))))))) << (0 ? 15:0))) | (((gctUINT32) ((gctUINT32) (bytes >> 3) & ((gctUINT32) ((((1 ? 15:0) - (0 ? 15:0) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 15:0) - (0 ? 15:0) + 1))))))) << (0 ? 15:0)));
+
+        gcmkONERROR(
+            gckOS_WriteMemory(Hardware->os, logical, link));
+
+        if (Low)
+        {
+            *Low = link;
+        }
+
+        /* Memory barrier. */
+        gcmkONERROR(
+            gckOS_MemoryBarrier(Hardware->os, logical));
+    }
+
+    if (Bytes != gcvNULL)
+    {
+        /* Return number of bytes required by the LINK command. */
+        *Bytes = 8;
+    }
+
+    /* Success. */
+    gcmkFOOTER_ARG("*Bytes=%lu", gcmOPT_VALUE(Bytes));
+    return gcvSTATUS_OK;
+
+OnError:
+    /* Return the status. */
+    gcmkFOOTER();
+    return status;
+}
+
+/*******************************************************************************
+**
+**  gckHARDWARE_UpdateQueueTail
+**
+**  Update the tail of the command queue.
+**
+**  INPUT:
+**
+**      gckHARDWARE Hardware
+**          Pointer to an gckHARDWARE object.
+**
+**      gctPOINTER Logical
+**          Logical address of the start of the command queue.
+**
+**      gctUINT32 Offset
+**          Offset into the command queue of the tail (last command).
+**
+**  OUTPUT:
+**
+**      Nothing.
+*/
+gceSTATUS
+gckHARDWARE_UpdateQueueTail(
+    IN gckHARDWARE Hardware,
+    IN gctPOINTER Logical,
+    IN gctUINT32 Offset
+    )
+{
+    gceSTATUS status;
+
+    gcmkHEADER_ARG("Hardware=0x%x Logical=0x%x Offset=0x%08x",
+                   Hardware, Logical, Offset);
+
+    /* Verify the hardware. */
+    gcmkVERIFY_OBJECT(Hardware, gcvOBJ_HARDWARE);
+
+    /* Force a barrier. */
+    gcmkONERROR(
+        gckOS_MemoryBarrier(Hardware->os, Logical));
+
+    /* Notify gckKERNEL object of change. */
+    gcmkONERROR(
+        gckKERNEL_Notify(Hardware->kernel,
+                         gcvNOTIFY_COMMAND_QUEUE,
+                         gcvFALSE));
+
+    if (status == gcvSTATUS_CHIP_NOT_READY)
+    {
+        gcmkONERROR(gcvSTATUS_DEVICE);
+    }
+
+    /* Success. */
+    gcmkFOOTER_NO();
+    return gcvSTATUS_OK;
+
+OnError:
+    /* Return the status. */
+    gcmkFOOTER();
+    return status;
+}
+
+/*******************************************************************************
+**
+**  gckHARDWARE_ConvertLogical
+**
+**  Convert a logical system address into a hardware specific address.
+**
+**  INPUT:
+**
+**      gckHARDWARE Hardware
+**          Pointer to an gckHARDWARE object.
+**
+**      gctPOINTER Logical
+**          Logical address to convert.
+**
+**      gctBOOL InUserSpace
+**          gcvTRUE if the memory in user space.
+**
+**      gctUINT32* Address
+**          Return hardware specific address.
+**
+**  OUTPUT:
+**
+**      Nothing.
+*/
+gceSTATUS
+gckHARDWARE_ConvertLogical(
+    IN gckHARDWARE Hardware,
+    IN gctPOINTER Logical,
+    IN gctBOOL InUserSpace,
+    OUT gctUINT32 * Address
+    )
+{
+    gctUINT32 address;
+    gceSTATUS status;
+    gctUINT32 baseAddress;
+    gctPHYS_ADDR_T physical;
+
+    gcmkHEADER_ARG("Hardware=0x%x Logical=0x%x InUserSpace=%d",
+                   Hardware, Logical, InUserSpace);
+
+    /* Verify the arguments. */
+    gcmkVERIFY_OBJECT(Hardware, gcvOBJ_HARDWARE);
+    gcmkVERIFY_ARGUMENT(Logical != gcvNULL);
+    gcmkVERIFY_ARGUMENT(Address != gcvNULL);
+
+    /* Convert logical address into a physical address. */
+    if (InUserSpace)
+    {
+        gcmkONERROR(gckOS_UserLogicalToPhysical(Hardware->os, Logical, &physical));
+    }
+    else
+    {
+        gcmkONERROR(gckOS_GetPhysicalAddress(Hardware->os, Logical, &physical));
+    }
+
+    gcmkSAFECASTPHYSADDRT(address, physical);
+
+    /* For old MMU, get GPU address according to baseAddress. */
+    if (Hardware->mmuVersion == 0)
+    {
+        gcmkONERROR(gckOS_GetBaseAddress(Hardware->os, &baseAddress));
+
+        /* Subtract base address to get a GPU address. */
+        gcmkASSERT(address >= baseAddress);
+        address -= baseAddress;
+    }
+
+    /* Return hardware specific address. */
+    *Address = (Hardware->mmuVersion == 0)
+             ? ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 31:31) - (0 ? 31:31) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 31:31) - (0 ? 31:31) + 1))))))) << (0 ? 31:31))) | (((gctUINT32) (0x0 & ((gctUINT32) ((((1 ? 31:31) - (0 ? 31:31) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 31:31) - (0 ? 31:31) + 1))))))) << (0 ? 31:31)))
+               | ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 30:0) - (0 ? 30:0) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 30:0) - (0 ? 30:0) + 1))))))) << (0 ? 30:0))) | (((gctUINT32) ((gctUINT32) (address) & ((gctUINT32) ((((1 ? 30:0) - (0 ? 30:0) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 30:0) - (0 ? 30:0) + 1))))))) << (0 ? 30:0)))
+             : address;
+
+    /* Success. */
+    gcmkFOOTER_ARG("*Address=0x%08x", *Address);
+    return gcvSTATUS_OK;
+
+OnError:
+    /* Return the status. */
+    gcmkFOOTER();
+    return status;
+}
+
+/*******************************************************************************
+**
+**  gckHARDWARE_Interrupt
+**
+**  Process an interrupt.
+**
+**  INPUT:
+**
+**      gckHARDWARE Hardware
+**          Pointer to an gckHARDWARE object.
+**
+**      gctBOOL InterruptValid
+**          If gcvTRUE, this function will read the interrupt acknowledge
+**          register, stores the data, and return whether or not the interrupt
+**          is ours or not.  If gcvFALSE, this functions will read the interrupt
+**          acknowledge register and combine it with any stored value to handle
+**          the event notifications.
+**
+**  OUTPUT:
+**
+**      Nothing.
+*/
+gceSTATUS
+gckHARDWARE_Interrupt(
+    IN gckHARDWARE Hardware,
+    IN gctBOOL InterruptValid
+    )
+{
+    gckEVENT eventObj;
+    gctUINT32 data = 0;
+    gceSTATUS status;
+
+    gcmkHEADER_ARG("Hardware=0x%x InterruptValid=%d", Hardware, InterruptValid);
+
+    /* Verify the arguments. */
+    gcmkVERIFY_OBJECT(Hardware, gcvOBJ_HARDWARE);
+
+    /* Extract gckEVENT object. */
+    eventObj = Hardware->kernel->eventObj;
+    gcmkVERIFY_OBJECT(eventObj, gcvOBJ_EVENT);
+
+    if (InterruptValid)
+    {
+        /* Read AQIntrAcknowledge register. */
+        gcmkONERROR(
+            gckOS_ReadRegisterEx(Hardware->os,
+                                 Hardware->core,
+                                 0x00010,
+                                 &data));
+
+        if (data == 0)
+        {
+            /* Not our interrupt. */
+            status = gcvSTATUS_NOT_OUR_INTERRUPT;
+        }
+        else
+        {
+
+#if gcdINTERRUPT_STATISTIC
+            gckOS_AtomClearMask(Hardware->pendingEvent, data);
+#endif
+
+            /* Inform gckEVENT of the interrupt. */
+            status = gckEVENT_Interrupt(eventObj,
+                                        data);
+        }
+    }
+    else
+    {
+            /* Handle events. */
+            status = gckEVENT_Notify(eventObj, 0);
+    }
+
+OnError:
+    /* Return the status. */
+    gcmkFOOTER();
+    return status;
+}
+
+/*******************************************************************************
+**
+**  gckHARDWARE_QueryCommandBuffer
+**
+**  Query the command buffer alignment and number of reserved bytes.
+**
+**  INPUT:
+**
+**      gckHARDWARE Harwdare
+**          Pointer to an gckHARDWARE object.
+**
+**  OUTPUT:
+**
+**      gctSIZE_T * Alignment
+**          Pointer to a variable receiving the alignment for each command.
+**
+**      gctSIZE_T * ReservedHead
+**          Pointer to a variable receiving the number of reserved bytes at the
+**          head of each command buffer.
+**
+**      gctSIZE_T * ReservedTail
+**          Pointer to a variable receiving the number of bytes reserved at the
+**          tail of each command buffer.
+*/
+gceSTATUS
+gckHARDWARE_QueryCommandBuffer(
+    IN gckHARDWARE Hardware,
+    OUT gctUINT32 * Alignment,
+    OUT gctUINT32 * ReservedHead,
+    OUT gctUINT32 * ReservedTail
+    )
+{
+    gcmkHEADER_ARG("Hardware=0x%x", Hardware);
+
+    /* Verify the arguments. */
+    gcmkVERIFY_OBJECT(Hardware, gcvOBJ_HARDWARE);
+
+    if (Alignment != gcvNULL)
+    {
+        /* Align every 8 bytes. */
+        *Alignment = 8;
+    }
+
+    if (ReservedHead != gcvNULL)
+    {
+        /* Reserve space for SelectPipe(). */
+        *ReservedHead = 32;
+    }
+
+    if (ReservedTail != gcvNULL)
+    {
+        /* Reserve space for Link(). */
+        *ReservedTail = 8;
+    }
+
+    /* Success. */
+    gcmkFOOTER_ARG("*Alignment=%lu *ReservedHead=%lu *ReservedTail=%lu",
+                   gcmOPT_VALUE(Alignment), gcmOPT_VALUE(ReservedHead),
+                   gcmOPT_VALUE(ReservedTail));
+    return gcvSTATUS_OK;
+}
+
+/*******************************************************************************
+**
+**  gckHARDWARE_QuerySystemMemory
+**
+**  Query the command buffer alignment and number of reserved bytes.
+**
+**  INPUT:
+**
+**      gckHARDWARE Harwdare
+**          Pointer to an gckHARDWARE object.
+**
+**  OUTPUT:
+**
+**      gctSIZE_T * SystemSize
+**          Pointer to a variable that receives the maximum size of the system
+**          memory.
+**
+**      gctUINT32 * SystemBaseAddress
+**          Poinetr to a variable that receives the base address for system
+**          memory.
+*/
+gceSTATUS
+gckHARDWARE_QuerySystemMemory(
+    IN gckHARDWARE Hardware,
+    OUT gctSIZE_T * SystemSize,
+    OUT gctUINT32 * SystemBaseAddress
+    )
+{
+    gcmkHEADER_ARG("Hardware=0x%x", Hardware);
+
+    /* Verify the arguments. */
+    gcmkVERIFY_OBJECT(Hardware, gcvOBJ_HARDWARE);
+
+    if (SystemSize != gcvNULL)
+    {
+        /* Maximum system memory can be 2GB. */
+        *SystemSize = 1U << 31;
+    }
+
+    if (SystemBaseAddress != gcvNULL)
+    {
+        /* Set system memory base address. */
+        *SystemBaseAddress = ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 31:31) - (0 ? 31:31) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 31:31) - (0 ? 31:31) + 1))))))) << (0 ? 31:31))) | (((gctUINT32) (0x0 & ((gctUINT32) ((((1 ? 31:31) - (0 ? 31:31) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 31:31) - (0 ? 31:31) + 1))))))) << (0 ? 31:31)));
+    }
+
+    /* Success. */
+    gcmkFOOTER_ARG("*SystemSize=%lu *SystemBaseAddress=%lu",
+                   gcmOPT_VALUE(SystemSize), gcmOPT_VALUE(SystemBaseAddress));
+    return gcvSTATUS_OK;
+}
+
+
+/*******************************************************************************
+**
+**  gckHARDWARE_SetMMU
+**
+**  Set the page table base address.
+**
+**  INPUT:
+**
+**      gckHARDWARE Harwdare
+**          Pointer to an gckHARDWARE object.
+**
+**      gctPOINTER Logical
+**          Logical address of the page table.
+**
+**  OUTPUT:
+**
+**      Nothing.
+*/
+gceSTATUS
+gckHARDWARE_SetMMU(
+    IN gckHARDWARE Hardware,
+    IN gctPOINTER Logical
+    )
+{
+    gceSTATUS status;
+    gctUINT32 address = 0;
+    gctUINT32 idle;
+    gctUINT32 timer = 0, delay = 1;
+    gctPHYS_ADDR_T physical;
+
+    gcmkHEADER_ARG("Hardware=0x%x Logical=0x%x", Hardware, Logical);
+
+    /* Verify the arguments. */
+    gcmkVERIFY_OBJECT(Hardware, gcvOBJ_HARDWARE);
+
+    if (Hardware->mmuVersion == 0)
+    {
+        gcmkVERIFY_ARGUMENT(Logical != gcvNULL);
+
+        /* Convert the logical address into physical address. */
+        gcmkONERROR(gckOS_GetPhysicalAddress(Hardware->os, Logical, &physical));
+
+        gcmkSAFECASTPHYSADDRT(address, physical);
+
+        gcmkTRACE_ZONE(gcvLEVEL_INFO, gcvZONE_HARDWARE,
+                       "Setting page table to 0x%08X",
+                       address);
+
+        /* Write the AQMemoryFePageTable register. */
+        gcmkONERROR(
+            gckOS_WriteRegisterEx(Hardware->os,
+                                  Hardware->core,
+                                  0x00400,
+                                  address));
+
+        /* Write the AQMemoryRaPageTable register. */
+        gcmkONERROR(
+            gckOS_WriteRegisterEx(Hardware->os,
+                                  Hardware->core,
+                                  0x00410,
+                                  address));
+
+        /* Write the AQMemoryTxPageTable register. */
+        gcmkONERROR(
+            gckOS_WriteRegisterEx(Hardware->os,
+                                  Hardware->core,
+                                  0x00404,
+                                  address));
+
+
+        /* Write the AQMemoryPePageTable register. */
+        gcmkONERROR(
+            gckOS_WriteRegisterEx(Hardware->os,
+                                  Hardware->core,
+                                  0x00408,
+                                  address));
+
+        /* Write the AQMemoryPezPageTable register. */
+        gcmkONERROR(
+            gckOS_WriteRegisterEx(Hardware->os,
+                                  Hardware->core,
+                                  0x0040C,
+                                  address));
+    }
+    else if (Hardware->enableMMU == gcvTRUE)
+    {
+        /* Prepared command sequence contains an END,
+        ** so update lastEnd and store executeCount to END command.
+        */
+        gcsHARDWARE_FUNCTION *function = &Hardware->functions[gcvHARDWARE_FUNCTION_MMU];
+        gctUINT32_PTR endLogical = (gctUINT32_PTR)function->endLogical;
+
+        Hardware->lastEnd = function->endAddress;
+
+        *(endLogical + 1) = Hardware->executeCount + 1;
+
+        /* Execute prepared command sequence. */
+        gcmkONERROR(gckHARDWARE_Execute(
+            Hardware,
+            function->address,
+            function->bytes
+            ));
+
+#if gcdLINK_QUEUE_SIZE
+        gckLINKQUEUE_Enqueue(
+            &Hardware->linkQueue,
+            function->address,
+            function->address + function->bytes,
+            0,
+            0
+            );
+#endif
+
+        /* Wait until MMU configure finishes. */
+        do
+        {
+            gckOS_Delay(Hardware->os, delay);
+
+            gcmkONERROR(gckOS_ReadRegisterEx(
+                Hardware->os,
+                Hardware->core,
+                0x00004,
+                &idle));
+
+            timer += delay;
+            delay *= 2;
+
+#if gcdGPU_TIMEOUT
+            if (timer >= Hardware->kernel->timeOut)
+            {
+                gckHARDWARE_DumpGPUState(Hardware);
+                gckCOMMAND_DumpExecutingBuffer(Hardware->kernel->command);
+
+                /* Even if hardware is not reset correctly, let software
+                ** continue to avoid software stuck. Software will timeout again
+                ** and try to recover GPU in next timeout.
+                */
+                gcmkONERROR(gcvSTATUS_DEVICE);
+            }
+#endif
+        }
+        while (!(((((gctUINT32) (idle)) >> (0 ? 0:0)) & ((gctUINT32) ((((1 ? 0:0) - (0 ? 0:0) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 0:0) - (0 ? 0:0) + 1)))))) ));
+
+        /* Enable MMU. */
+        gcmkONERROR(gckOS_WriteRegisterEx(
+            Hardware->os,
+            Hardware->core,
+            0x0018C,
+            ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 0:0) - (0 ? 0:0) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 0:0) - (0 ? 0:0) + 1))))))) << (0 ? 0:0))) | (((gctUINT32) ((gctUINT32) (gcvTRUE) & ((gctUINT32) ((((1 ? 0:0) - (0 ? 0:0) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 0:0) - (0 ? 0:0) + 1))))))) << (0 ? 0:0)))
+            ));
+    }
+
+    /* Return the status. */
+    gcmkFOOTER_NO();
+    return gcvSTATUS_OK;
+
+OnError:
+    /* Return the status. */
+    gcmkFOOTER();
+    return status;
+}
+
+/*******************************************************************************
+**
+**  gckHARDWARE_FlushMMU
+**
+**  Flush the page table.
+**
+**  INPUT:
+**
+**      gckHARDWARE Harwdare
+**          Pointer to an gckHARDWARE object.
+**
+**  OUTPUT:
+**
+**      Nothing.
+*/
+gceSTATUS
+gckHARDWARE_FlushMMU(
+    IN gckHARDWARE Hardware
+    )
+{
+    gceSTATUS status;
+    gckCOMMAND command;
+    gctUINT32_PTR buffer;
+    gctUINT32 bufferSize;
+    gctPOINTER pointer = gcvNULL;
+    gctUINT32 flushSize;
+    gctUINT32 count;
+    gctPHYS_ADDR_T physical;
+    gctUINT32 address;
+
+    gcmkHEADER_ARG("Hardware=0x%x", Hardware);
+
+    /* Verify the arguments. */
+    gcmkVERIFY_OBJECT(Hardware, gcvOBJ_HARDWARE);
+
+    /* Verify the gckCOMMAND object pointer. */
+    command = Hardware->kernel->command;
+
+    /* Flush the memory controller. */
+    if (Hardware->mmuVersion == 0)
+    {
+        gcmkONERROR(gckCOMMAND_Reserve(
+            command, 8, &pointer, &bufferSize
+            ));
+
+        buffer = (gctUINT32_PTR) pointer;
+
+        buffer[0]
+            = ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 31:27) - (0 ? 31:27) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 31:27) - (0 ? 31:27) + 1))))))) << (0 ? 31:27))) | (((gctUINT32) (0x01 & ((gctUINT32) ((((1 ? 31:27) - (0 ? 31:27) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 31:27) - (0 ? 31:27) + 1))))))) << (0 ? 31:27)))
+            | ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 15:0) - (0 ? 15:0) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 15:0) - (0 ? 15:0) + 1))))))) << (0 ? 15:0))) | (((gctUINT32) ((gctUINT32) (0x0E04) & ((gctUINT32) ((((1 ? 15:0) - (0 ? 15:0) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 15:0) - (0 ? 15:0) + 1))))))) << (0 ? 15:0)))
+            | ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 25:16) - (0 ? 25:16) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 25:16) - (0 ? 25:16) + 1))))))) << (0 ? 25:16))) | (((gctUINT32) ((gctUINT32) (1) & ((gctUINT32) ((((1 ? 25:16) - (0 ? 25:16) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 25:16) - (0 ? 25:16) + 1))))))) << (0 ? 25:16)));
+
+        buffer[1]
+            = ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 0:0) - (0 ? 0:0) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 0:0) - (0 ? 0:0) + 1))))))) << (0 ? 0:0))) | (((gctUINT32) (0x1 & ((gctUINT32) ((((1 ? 0:0) - (0 ? 0:0) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 0:0) - (0 ? 0:0) + 1))))))) << (0 ? 0:0)))
+            | ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 1:1) - (0 ? 1:1) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 1:1) - (0 ? 1:1) + 1))))))) << (0 ? 1:1))) | (((gctUINT32) (0x1 & ((gctUINT32) ((((1 ? 1:1) - (0 ? 1:1) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 1:1) - (0 ? 1:1) + 1))))))) << (0 ? 1:1)))
+            | ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 2:2) - (0 ? 2:2) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 2:2) - (0 ? 2:2) + 1))))))) << (0 ? 2:2))) | (((gctUINT32) (0x1 & ((gctUINT32) ((((1 ? 2:2) - (0 ? 2:2) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 2:2) - (0 ? 2:2) + 1))))))) << (0 ? 2:2)))
+            | ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 3:3) - (0 ? 3:3) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 3:3) - (0 ? 3:3) + 1))))))) << (0 ? 3:3))) | (((gctUINT32) (0x1 & ((gctUINT32) ((((1 ? 3:3) - (0 ? 3:3) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 3:3) - (0 ? 3:3) + 1))))))) << (0 ? 3:3)))
+            | ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 4:4) - (0 ? 4:4) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 4:4) - (0 ? 4:4) + 1))))))) << (0 ? 4:4))) | (((gctUINT32) (0x1 & ((gctUINT32) ((((1 ? 4:4) - (0 ? 4:4) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 4:4) - (0 ? 4:4) + 1))))))) << (0 ? 4:4)));
+
+        gcmkONERROR(gckCOMMAND_Execute(command, 8));
+    }
+    else
+    {
+        /* semaphore stall cmd size */
+        gctUINT32 stCmds = gckHARDWARE_IsFeatureAvailable(Hardware, gcvFEATURE_TEX_CACHE_FLUSH_FIX) ? 0 : 4;
+
+        flushSize =  (stCmds + 18) * 4;
+
+        gcmkONERROR(gckCOMMAND_Reserve(
+            command, flushSize, &pointer, &bufferSize
+            ));
+
+        buffer = (gctUINT32_PTR) pointer;
+
+        count = ((gctUINT)bufferSize - flushSize + 7) >> 3;
+
+        gcmkONERROR(gckOS_GetPhysicalAddress(command->os, buffer, &physical));
+
+        gcmkSAFECASTPHYSADDRT(address, physical);
+
+        if (stCmds)
+        {
+            /* Arm the PE-FE Semaphore. */
+            *buffer++
+                = ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 31:27) - (0 ? 31:27) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 31:27) - (0 ? 31:27) + 1))))))) << (0 ? 31:27))) | (((gctUINT32) (0x01 & ((gctUINT32) ((((1 ? 31:27) - (0 ? 31:27) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 31:27) - (0 ? 31:27) + 1))))))) << (0 ? 31:27)))
+                | ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 25:16) - (0 ? 25:16) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 25:16) - (0 ? 25:16) + 1))))))) << (0 ? 25:16))) | (((gctUINT32) ((gctUINT32) (1) & ((gctUINT32) ((((1 ? 25:16) - (0 ? 25:16) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 25:16) - (0 ? 25:16) + 1))))))) << (0 ? 25:16)))
+                | ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 15:0) - (0 ? 15:0) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 15:0) - (0 ? 15:0) + 1))))))) << (0 ? 15:0))) | (((gctUINT32) ((gctUINT32) (0x0E02) & ((gctUINT32) ((((1 ? 15:0) - (0 ? 15:0) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 15:0) - (0 ? 15:0) + 1))))))) << (0 ? 15:0)));
+
+            *buffer++
+                = ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 4:0) - (0 ? 4:0) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 4:0) - (0 ? 4:0) + 1))))))) << (0 ? 4:0))) | (((gctUINT32) (0x01 & ((gctUINT32) ((((1 ? 4:0) - (0 ? 4:0) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 4:0) - (0 ? 4:0) + 1))))))) << (0 ? 4:0)))
+                | ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 12:8) - (0 ? 12:8) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 12:8) - (0 ? 12:8) + 1))))))) << (0 ? 12:8))) | (((gctUINT32) (0x07 & ((gctUINT32) ((((1 ? 12:8) - (0 ? 12:8) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 12:8) - (0 ? 12:8) + 1))))))) << (0 ? 12:8)));
+
+            /* STALL FE until PE is done flushing. */
+            *buffer++
+                = ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 31:27) - (0 ? 31:27) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 31:27) - (0 ? 31:27) + 1))))))) << (0 ? 31:27))) | (((gctUINT32) (0x09 & ((gctUINT32) ((((1 ? 31:27) - (0 ? 31:27) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 31:27) - (0 ? 31:27) + 1))))))) << (0 ? 31:27)));
+
+            *buffer++
+                = ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 4:0) - (0 ? 4:0) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 4:0) - (0 ? 4:0) + 1))))))) << (0 ? 4:0))) | (((gctUINT32) (0x01 & ((gctUINT32) ((((1 ? 4:0) - (0 ? 4:0) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 4:0) - (0 ? 4:0) + 1))))))) << (0 ? 4:0)))
+                | ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 12:8) - (0 ? 12:8) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 12:8) - (0 ? 12:8) + 1))))))) << (0 ? 12:8))) | (((gctUINT32) (0x07 & ((gctUINT32) ((((1 ? 12:8) - (0 ? 12:8) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 12:8) - (0 ? 12:8) + 1))))))) << (0 ? 12:8)));
+        }
+
+        /* Flush cache. */
+        *buffer++
+            = ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 31:27) - (0 ? 31:27) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 31:27) - (0 ? 31:27) + 1))))))) << (0 ? 31:27))) | (((gctUINT32) (0x01 & ((gctUINT32) ((((1 ? 31:27) - (0 ? 31:27) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 31:27) - (0 ? 31:27) + 1))))))) << (0 ? 31:27)))
+            | ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 25:16) - (0 ? 25:16) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 25:16) - (0 ? 25:16) + 1))))))) << (0 ? 25:16))) | (((gctUINT32) ((gctUINT32) (1) & ((gctUINT32) ((((1 ? 25:16) - (0 ? 25:16) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 25:16) - (0 ? 25:16) + 1))))))) << (0 ? 25:16)))
+            | ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 15:0) - (0 ? 15:0) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 15:0) - (0 ? 15:0) + 1))))))) << (0 ? 15:0))) | (((gctUINT32) ((gctUINT32) (0x0E03) & ((gctUINT32) ((((1 ? 15:0) - (0 ? 15:0) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 15:0) - (0 ? 15:0) + 1))))))) << (0 ? 15:0)));
+
+        *buffer++
+            = ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 3:3) - (0 ? 3:3) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 3:3) - (0 ? 3:3) + 1))))))) << (0 ? 3:3))) | (((gctUINT32) (0x1 & ((gctUINT32) ((((1 ? 3:3) - (0 ? 3:3) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 3:3) - (0 ? 3:3) + 1))))))) << (0 ? 3:3)))
+            | ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 1:1) - (0 ? 1:1) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 1:1) - (0 ? 1:1) + 1))))))) << (0 ? 1:1))) | (((gctUINT32) (0x1 & ((gctUINT32) ((((1 ? 1:1) - (0 ? 1:1) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 1:1) - (0 ? 1:1) + 1))))))) << (0 ? 1:1)))
+            | ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 2:2) - (0 ? 2:2) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 2:2) - (0 ? 2:2) + 1))))))) << (0 ? 2:2))) | (((gctUINT32) (0x1 & ((gctUINT32) ((((1 ? 2:2) - (0 ? 2:2) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 2:2) - (0 ? 2:2) + 1))))))) << (0 ? 2:2)))
+            | ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 5:5) - (0 ? 5:5) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 5:5) - (0 ? 5:5) + 1))))))) << (0 ? 5:5))) | (((gctUINT32) (0x1 & ((gctUINT32) ((((1 ? 5:5) - (0 ? 5:5) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 5:5) - (0 ? 5:5) + 1))))))) << (0 ? 5:5)))
+            | ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 6:6) - (0 ? 6:6) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 6:6) - (0 ? 6:6) + 1))))))) << (0 ? 6:6))) | (((gctUINT32) (0x1 & ((gctUINT32) ((((1 ? 6:6) - (0 ? 6:6) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 6:6) - (0 ? 6:6) + 1))))))) << (0 ? 6:6)));
+
+        /* Flush VTS in separate command */
+        *buffer++
+            = ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 31:27) - (0 ? 31:27) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 31:27) - (0 ? 31:27) + 1))))))) << (0 ? 31:27))) | (((gctUINT32) (0x01 & ((gctUINT32) ((((1 ? 31:27) - (0 ? 31:27) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 31:27) - (0 ? 31:27) + 1))))))) << (0 ? 31:27)))
+            | ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 25:16) - (0 ? 25:16) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 25:16) - (0 ? 25:16) + 1))))))) << (0 ? 25:16))) | (((gctUINT32) ((gctUINT32) (1) & ((gctUINT32) ((((1 ? 25:16) - (0 ? 25:16) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 25:16) - (0 ? 25:16) + 1))))))) << (0 ? 25:16)))
+            | ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 15:0) - (0 ? 15:0) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 15:0) - (0 ? 15:0) + 1))))))) << (0 ? 15:0))) | (((gctUINT32) ((gctUINT32) (0x0E03) & ((gctUINT32) ((((1 ? 15:0) - (0 ? 15:0) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 15:0) - (0 ? 15:0) + 1))))))) << (0 ? 15:0)));
+
+        *buffer++
+            = ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 4:4) - (0 ? 4:4) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 4:4) - (0 ? 4:4) + 1))))))) << (0 ? 4:4))) | (((gctUINT32) (0x1 & ((gctUINT32) ((((1 ? 4:4) - (0 ? 4:4) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 4:4) - (0 ? 4:4) + 1))))))) << (0 ? 4:4)));
+
+        /* Arm the PE-FE Semaphore. */
+        *buffer++
+            = ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 31:27) - (0 ? 31:27) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 31:27) - (0 ? 31:27) + 1))))))) << (0 ? 31:27))) | (((gctUINT32) (0x01 & ((gctUINT32) ((((1 ? 31:27) - (0 ? 31:27) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 31:27) - (0 ? 31:27) + 1))))))) << (0 ? 31:27)))
+            | ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 25:16) - (0 ? 25:16) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 25:16) - (0 ? 25:16) + 1))))))) << (0 ? 25:16))) | (((gctUINT32) ((gctUINT32) (1) & ((gctUINT32) ((((1 ? 25:16) - (0 ? 25:16) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 25:16) - (0 ? 25:16) + 1))))))) << (0 ? 25:16)))
+            | ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 15:0) - (0 ? 15:0) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 15:0) - (0 ? 15:0) + 1))))))) << (0 ? 15:0))) | (((gctUINT32) ((gctUINT32) (0x0E02) & ((gctUINT32) ((((1 ? 15:0) - (0 ? 15:0) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 15:0) - (0 ? 15:0) + 1))))))) << (0 ? 15:0)));
+
+        *buffer++
+            = ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 4:0) - (0 ? 4:0) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 4:0) - (0 ? 4:0) + 1))))))) << (0 ? 4:0))) | (((gctUINT32) (0x01 & ((gctUINT32) ((((1 ? 4:0) - (0 ? 4:0) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 4:0) - (0 ? 4:0) + 1))))))) << (0 ? 4:0)))
+            | ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 12:8) - (0 ? 12:8) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 12:8) - (0 ? 12:8) + 1))))))) << (0 ? 12:8))) | (((gctUINT32) (0x07 & ((gctUINT32) ((((1 ? 12:8) - (0 ? 12:8) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 12:8) - (0 ? 12:8) + 1))))))) << (0 ? 12:8)));
+
+        /* STALL FE until PE is done flushing. */
+        *buffer++
+            = ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 31:27) - (0 ? 31:27) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 31:27) - (0 ? 31:27) + 1))))))) << (0 ? 31:27))) | (((gctUINT32) (0x09 & ((gctUINT32) ((((1 ? 31:27) - (0 ? 31:27) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 31:27) - (0 ? 31:27) + 1))))))) << (0 ? 31:27)));
+
+        *buffer++
+            = ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 4:0) - (0 ? 4:0) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 4:0) - (0 ? 4:0) + 1))))))) << (0 ? 4:0))) | (((gctUINT32) (0x01 & ((gctUINT32) ((((1 ? 4:0) - (0 ? 4:0) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 4:0) - (0 ? 4:0) + 1))))))) << (0 ? 4:0)))
+            | ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 12:8) - (0 ? 12:8) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 12:8) - (0 ? 12:8) + 1))))))) << (0 ? 12:8))) | (((gctUINT32) (0x07 & ((gctUINT32) ((((1 ? 12:8) - (0 ? 12:8) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 12:8) - (0 ? 12:8) + 1))))))) << (0 ? 12:8)));
+
+        /* LINK to next slot to flush FE FIFO. */
+        *buffer++
+            = ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 31:27) - (0 ? 31:27) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 31:27) - (0 ? 31:27) + 1))))))) << (0 ? 31:27))) | (((gctUINT32) (0x08 & ((gctUINT32) ((((1 ? 31:27) - (0 ? 31:27) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 31:27) - (0 ? 31:27) + 1))))))) << (0 ? 31:27)))
+            | ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 15:0) - (0 ? 15:0) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 15:0) - (0 ? 15:0) + 1))))))) << (0 ? 15:0))) | (((gctUINT32) ((gctUINT32) (4) & ((gctUINT32) ((((1 ? 15:0) - (0 ? 15:0) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 15:0) - (0 ? 15:0) + 1))))))) << (0 ? 15:0)));
+
+        *buffer++
+            = address + (stCmds + 10) * gcmSIZEOF(gctUINT32);
+
+        /* Flush MMU cache. */
+        *buffer++
+            = ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 31:27) - (0 ? 31:27) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 31:27) - (0 ? 31:27) + 1))))))) << (0 ? 31:27))) | (((gctUINT32) (0x01 & ((gctUINT32) ((((1 ? 31:27) - (0 ? 31:27) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 31:27) - (0 ? 31:27) + 1))))))) << (0 ? 31:27)))
+            | ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 15:0) - (0 ? 15:0) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 15:0) - (0 ? 15:0) + 1))))))) << (0 ? 15:0))) | (((gctUINT32) ((gctUINT32) (0x0061) & ((gctUINT32) ((((1 ? 15:0) - (0 ? 15:0) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 15:0) - (0 ? 15:0) + 1))))))) << (0 ? 15:0)))
+            | ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 25:16) - (0 ? 25:16) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 25:16) - (0 ? 25:16) + 1))))))) << (0 ? 25:16))) | (((gctUINT32) ((gctUINT32) (1) & ((gctUINT32) ((((1 ? 25:16) - (0 ? 25:16) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 25:16) - (0 ? 25:16) + 1))))))) << (0 ? 25:16)));
+
+        *buffer++
+            = (((((gctUINT32) (~0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 4:4) - (0 ? 4:4) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 4:4) - (0 ? 4:4) + 1))))))) << (0 ? 4:4))) | (((gctUINT32) (0x1 & ((gctUINT32) ((((1 ? 4:4) - (0 ? 4:4) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 4:4) - (0 ? 4:4) + 1))))))) << (0 ? 4:4))) &  ((((gctUINT32) (~0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 7:7) - (0 ? 7:7) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 7:7) - (0 ? 7:7) + 1))))))) << (0 ? 7:7))) | (((gctUINT32) (0x0 & ((gctUINT32) ((((1 ? 7:7) - (0 ? 7:7) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 7:7) - (0 ? 7:7) + 1))))))) << (0 ? 7:7))));
+
+        /* Arm the PE-FE Semaphore. */
+        *buffer++
+            = ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 31:27) - (0 ? 31:27) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 31:27) - (0 ? 31:27) + 1))))))) << (0 ? 31:27))) | (((gctUINT32) (0x01 & ((gctUINT32) ((((1 ? 31:27) - (0 ? 31:27) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 31:27) - (0 ? 31:27) + 1))))))) << (0 ? 31:27)))
+            | ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 25:16) - (0 ? 25:16) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 25:16) - (0 ? 25:16) + 1))))))) << (0 ? 25:16))) | (((gctUINT32) ((gctUINT32) (1) & ((gctUINT32) ((((1 ? 25:16) - (0 ? 25:16) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 25:16) - (0 ? 25:16) + 1))))))) << (0 ? 25:16)))
+            | ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 15:0) - (0 ? 15:0) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 15:0) - (0 ? 15:0) + 1))))))) << (0 ? 15:0))) | (((gctUINT32) ((gctUINT32) (0x0E02) & ((gctUINT32) ((((1 ? 15:0) - (0 ? 15:0) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 15:0) - (0 ? 15:0) + 1))))))) << (0 ? 15:0)));
+
+        *buffer++
+            = ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 4:0) - (0 ? 4:0) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 4:0) - (0 ? 4:0) + 1))))))) << (0 ? 4:0))) | (((gctUINT32) (0x01 & ((gctUINT32) ((((1 ? 4:0) - (0 ? 4:0) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 4:0) - (0 ? 4:0) + 1))))))) << (0 ? 4:0)))
+            | ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 12:8) - (0 ? 12:8) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 12:8) - (0 ? 12:8) + 1))))))) << (0 ? 12:8))) | (((gctUINT32) (0x07 & ((gctUINT32) ((((1 ? 12:8) - (0 ? 12:8) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 12:8) - (0 ? 12:8) + 1))))))) << (0 ? 12:8)));
+
+        /* STALL FE until PE is done flushing. */
+       *buffer++
+            = ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 31:27) - (0 ? 31:27) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 31:27) - (0 ? 31:27) + 1))))))) << (0 ? 31:27))) | (((gctUINT32) (0x09 & ((gctUINT32) ((((1 ? 31:27) - (0 ? 31:27) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 31:27) - (0 ? 31:27) + 1))))))) << (0 ? 31:27)));
+
+       *buffer++
+            = ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 4:0) - (0 ? 4:0) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 4:0) - (0 ? 4:0) + 1))))))) << (0 ? 4:0))) | (((gctUINT32) (0x01 & ((gctUINT32) ((((1 ? 4:0) - (0 ? 4:0) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 4:0) - (0 ? 4:0) + 1))))))) << (0 ? 4:0)))
+            | ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 12:8) - (0 ? 12:8) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 12:8) - (0 ? 12:8) + 1))))))) << (0 ? 12:8))) | (((gctUINT32) (0x07 & ((gctUINT32) ((((1 ? 12:8) - (0 ? 12:8) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 12:8) - (0 ? 12:8) + 1))))))) << (0 ? 12:8)));
+
+        /* LINK to next slot to flush FE FIFO. */
+        *buffer++
+            = ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 31:27) - (0 ? 31:27) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 31:27) - (0 ? 31:27) + 1))))))) << (0 ? 31:27))) | (((gctUINT32) (0x08 & ((gctUINT32) ((((1 ? 31:27) - (0 ? 31:27) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 31:27) - (0 ? 31:27) + 1))))))) << (0 ? 31:27)))
+            | ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 15:0) - (0 ? 15:0) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 15:0) - (0 ? 15:0) + 1))))))) << (0 ? 15:0))) | (((gctUINT32) ((gctUINT32) (count) & ((gctUINT32) ((((1 ? 15:0) - (0 ? 15:0) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 15:0) - (0 ? 15:0) + 1))))))) << (0 ? 15:0)));
+
+        *buffer++
+            = address + flushSize;
+
+        gcmkONERROR(gckCOMMAND_Execute(command, flushSize));
+    }
+
+    /* Success. */
+    gcmkFOOTER_NO();
+    return gcvSTATUS_OK;
+
+OnError:
+
+    /* Return the status. */
+    gcmkFOOTER();
+    return status;
+}
+
+gceSTATUS
+gckHARDWARE_SetMMUStates(
+    IN gckHARDWARE Hardware,
+    IN gctPOINTER MtlbAddress,
+    IN gceMMU_MODE Mode,
+    IN gctPOINTER SafeAddress,
+    IN gctPOINTER Logical,
+    IN OUT gctUINT32 * Bytes
+    )
+{
+    gceSTATUS status;
+    gctUINT32 config, address;
+    gctUINT32 extMtlb, extSafeAddrss, configEx = 0;
+    gctPHYS_ADDR_T physical;
+    gctUINT32_PTR buffer;
+    gctBOOL ace;
+    gctUINT32 reserveBytes = 16 + 4 * 4;
+
+    gctBOOL config2D;
+
+    gcmkHEADER_ARG("Hardware=0x%x", Hardware);
+
+    /* Verify the arguments. */
+    gcmkVERIFY_OBJECT(Hardware, gcvOBJ_HARDWARE);
+    gcmkVERIFY_ARGUMENT(Hardware->mmuVersion != 0);
+
+    ace = gckHARDWARE_IsFeatureAvailable(Hardware, gcvFEATURE_ACE);
+
+    if (ace)
+    {
+        reserveBytes += 8;
+    }
+
+    config2D =  gckHARDWARE_IsFeatureAvailable(Hardware, gcvFEATURE_PIPE_3D)
+             && gckHARDWARE_IsFeatureAvailable(Hardware, gcvFEATURE_PIPE_2D);
+
+    if (config2D)
+    {
+        reserveBytes +=
+            /* Pipe Select. */
+            4 * 4
+            /* Configure MMU States. */
+          + 4 * 4
+            /* Semaphore stall */
+          + 4 * 8;
+
+        if (ace)
+        {
+            reserveBytes += 8;
+        }
+    }
+
+    /* Convert logical address into physical address. */
+    gcmkONERROR(
+        gckOS_GetPhysicalAddress(Hardware->os, MtlbAddress, &physical));
+
+    config  = (gctUINT32)(physical & 0xFFFFFFFF);
+    extMtlb = (gctUINT32)(physical >> 32);
+
+    gcmkONERROR(
+        gckOS_GetPhysicalAddress(Hardware->os, SafeAddress, &physical));
+
+    address = (gctUINT32)(physical & 0xFFFFFFFF);
+    extSafeAddrss = (gctUINT32)(physical >> 32);
+
+    if (address & 0x3F)
+    {
+        gcmkONERROR(gcvSTATUS_NOT_ALIGNED);
+    }
+
+    switch (Mode)
+    {
+    case gcvMMU_MODE_1K:
+        if (config & 0x3FF)
+        {
+            gcmkONERROR(gcvSTATUS_NOT_ALIGNED);
+        }
+
+        config |= ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 0:0) - (0 ? 0:0) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 0:0) - (0 ? 0:0) + 1))))))) << (0 ? 0:0))) | (((gctUINT32) (0x1 & ((gctUINT32) ((((1 ? 0:0) - (0 ? 0:0) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 0:0) - (0 ? 0:0) + 1))))))) << (0 ? 0:0)));
+
+        break;
+
+    case gcvMMU_MODE_4K:
+        if (config & 0xFFF)
+        {
+            gcmkONERROR(gcvSTATUS_NOT_ALIGNED);
+        }
+
+        config |= ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 0:0) - (0 ? 0:0) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 0:0) - (0 ? 0:0) + 1))))))) << (0 ? 0:0))) | (((gctUINT32) (0x0 & ((gctUINT32) ((((1 ? 0:0) - (0 ? 0:0) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 0:0) - (0 ? 0:0) + 1))))))) << (0 ? 0:0)));
+
+        break;
+
+    default:
+        gcmkONERROR(gcvSTATUS_INVALID_ARGUMENT);
+    }
+
+    if (ace)
+    {
+        configEx = ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 7:0) - (0 ? 7:0) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 7:0) - (0 ? 7:0) + 1))))))) << (0 ? 7:0))) | (((gctUINT32) ((gctUINT32) (extSafeAddrss) & ((gctUINT32) ((((1 ? 7:0) - (0 ? 7:0) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 7:0) - (0 ? 7:0) + 1))))))) << (0 ? 7:0)))
+                 | ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 23:16) - (0 ? 23:16) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 23:16) - (0 ? 23:16) + 1))))))) << (0 ? 23:16))) | (((gctUINT32) ((gctUINT32) (extMtlb) & ((gctUINT32) ((((1 ? 23:16) - (0 ? 23:16) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 23:16) - (0 ? 23:16) + 1))))))) << (0 ? 23:16)));
+    }
+
+    if (Logical != gcvNULL)
+    {
+        buffer = Logical;
+
+        *buffer++
+            = ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 31:27) - (0 ? 31:27) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 31:27) - (0 ? 31:27) + 1))))))) << (0 ? 31:27))) | (((gctUINT32) (0x01 & ((gctUINT32) ((((1 ? 31:27) - (0 ? 31:27) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 31:27) - (0 ? 31:27) + 1))))))) << (0 ? 31:27)))
+            | ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 15:0) - (0 ? 15:0) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 15:0) - (0 ? 15:0) + 1))))))) << (0 ? 15:0))) | (((gctUINT32) ((gctUINT32) (0x0061) & ((gctUINT32) ((((1 ? 15:0) - (0 ? 15:0) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 15:0) - (0 ? 15:0) + 1))))))) << (0 ? 15:0)))
+            | ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 25:16) - (0 ? 25:16) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 25:16) - (0 ? 25:16) + 1))))))) << (0 ? 25:16))) | (((gctUINT32) ((gctUINT32) (1) & ((gctUINT32) ((((1 ? 25:16) - (0 ? 25:16) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 25:16) - (0 ? 25:16) + 1))))))) << (0 ? 25:16)));
+
+        *buffer++ = config;
+
+        *buffer++
+            = ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 31:27) - (0 ? 31:27) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 31:27) - (0 ? 31:27) + 1))))))) << (0 ? 31:27))) | (((gctUINT32) (0x01 & ((gctUINT32) ((((1 ? 31:27) - (0 ? 31:27) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 31:27) - (0 ? 31:27) + 1))))))) << (0 ? 31:27)))
+            | ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 15:0) - (0 ? 15:0) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 15:0) - (0 ? 15:0) + 1))))))) << (0 ? 15:0))) | (((gctUINT32) ((gctUINT32) (0x0060) & ((gctUINT32) ((((1 ? 15:0) - (0 ? 15:0) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 15:0) - (0 ? 15:0) + 1))))))) << (0 ? 15:0)))
+            | ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 25:16) - (0 ? 25:16) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 25:16) - (0 ? 25:16) + 1))))))) << (0 ? 25:16))) | (((gctUINT32) ((gctUINT32) (1) & ((gctUINT32) ((((1 ? 25:16) - (0 ? 25:16) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 25:16) - (0 ? 25:16) + 1))))))) << (0 ? 25:16)));
+
+        *buffer++ = address;
+
+        if (ace)
+        {
+            *buffer++
+                = ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 31:27) - (0 ? 31:27) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 31:27) - (0 ? 31:27) + 1))))))) << (0 ? 31:27))) | (((gctUINT32) (0x01 & ((gctUINT32) ((((1 ? 31:27) - (0 ? 31:27) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 31:27) - (0 ? 31:27) + 1))))))) << (0 ? 31:27)))
+                | ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 15:0) - (0 ? 15:0) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 15:0) - (0 ? 15:0) + 1))))))) << (0 ? 15:0))) | (((gctUINT32) ((gctUINT32) (0x0068) & ((gctUINT32) ((((1 ? 15:0) - (0 ? 15:0) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 15:0) - (0 ? 15:0) + 1))))))) << (0 ? 15:0)))
+                | ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 25:16) - (0 ? 25:16) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 25:16) - (0 ? 25:16) + 1))))))) << (0 ? 25:16))) | (((gctUINT32) ((gctUINT32) (1) & ((gctUINT32) ((((1 ? 25:16) - (0 ? 25:16) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 25:16) - (0 ? 25:16) + 1))))))) << (0 ? 25:16)));
+
+            *buffer++
+                = configEx;
+        }
+
+        do{*buffer++ = ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 31:27) - (0 ? 31:27) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 31:27) - (0 ? 31:27) + 1))))))) << (0 ? 31:27))) | (((gctUINT32) (0x01 & ((gctUINT32) ((((1 ? 31:27) - (0 ? 31:27) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 31:27) - (0 ? 31:27) + 1))))))) << (0 ? 31:27))) | ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 25:16) - (0 ? 25:16) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 25:16) - (0 ? 25:16) + 1))))))) << (0 ? 25:16))) | (((gctUINT32) ((gctUINT32) (1) & ((gctUINT32) ((((1 ? 25:16) - (0 ? 25:16) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 25:16) - (0 ? 25:16) + 1))))))) << (0 ? 25:16))) | ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 15:0) - (0 ? 15:0) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 15:0) - (0 ? 15:0) + 1))))))) << (0 ? 15:0))) | (((gctUINT32) ((gctUINT32) (0x0E02) & ((gctUINT32) ((((1 ? 15:0) - (0 ? 15:0) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 15:0) - (0 ? 15:0) + 1))))))) << (0 ? 15:0))); *buffer++ = ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 4:0) - (0 ? 4:0) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 4:0) - (0 ? 4:0) + 1))))))) << (0 ? 4:0))) | (((gctUINT32) (0x01 & ((gctUINT32) ((((1 ? 4:0) - (0 ? 4:0) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 4:0) - (0 ? 4:0) + 1))))))) << (0 ? 4:0))) | ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 12:8) - (0 ? 12:8) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 12:8) - (0 ? 12:8) + 1))))))) << (0 ? 12:8))) | (((gctUINT32) (0x07 & ((gctUINT32) ((((1 ? 12:8) - (0 ? 12:8) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 12:8) - (0 ? 12:8) + 1))))))) << (0 ? 12:8))); *buffer++ = ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 31:27) - (0 ? 31:27) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 31:27) - (0 ? 31:27) + 1))))))) << (0 ? 31:27))) | (((gctUINT32) (0x09 & ((gctUINT32) ((((1 ? 31:27) - (0 ? 31:27) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 31:27) - (0 ? 31:27) + 1))))))) << (0 ? 31:27))); *buffer++ = ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 4:0) - (0 ? 4:0) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 4:0) - (0 ? 4:0) + 1))))))) << (0 ? 4:0))) | (((gctUINT32) (0x01 & ((gctUINT32) ((((1 ? 4:0) - (0 ? 4:0) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 4:0) - (0 ? 4:0) + 1))))))) << (0 ? 4:0))) | ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 12:8) - (0 ? 12:8) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 12:8) - (0 ? 12:8) + 1))))))) << (0 ? 12:8))) | (((gctUINT32) (0x07 & ((gctUINT32) ((((1 ? 12:8) - (0 ? 12:8) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 12:8) - (0 ? 12:8) + 1))))))) << (0 ? 12:8)));} while(0);;
+
+        if (config2D)
+        {
+            /* LoadState(AQPipeSelect, 1), pipe. */
+            *buffer++
+                = ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 31:27) - (0 ? 31:27) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 31:27) - (0 ? 31:27) + 1))))))) << (0 ? 31:27))) | (((gctUINT32) (0x01 & ((gctUINT32) ((((1 ? 31:27) - (0 ? 31:27) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 31:27) - (0 ? 31:27) + 1))))))) << (0 ? 31:27)))
+                | ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 15:0) - (0 ? 15:0) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 15:0) - (0 ? 15:0) + 1))))))) << (0 ? 15:0))) | (((gctUINT32) ((gctUINT32) (0x0E00) & ((gctUINT32) ((((1 ? 15:0) - (0 ? 15:0) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 15:0) - (0 ? 15:0) + 1))))))) << (0 ? 15:0)))
+                | ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 25:16) - (0 ? 25:16) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 25:16) - (0 ? 25:16) + 1))))))) << (0 ? 25:16))) | (((gctUINT32) ((gctUINT32) (1) & ((gctUINT32) ((((1 ? 25:16) - (0 ? 25:16) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 25:16) - (0 ? 25:16) + 1))))))) << (0 ? 25:16)));
+
+            *buffer++ = 0x1;
+
+            *buffer++
+                = ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 31:27) - (0 ? 31:27) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 31:27) - (0 ? 31:27) + 1))))))) << (0 ? 31:27))) | (((gctUINT32) (0x01 & ((gctUINT32) ((((1 ? 31:27) - (0 ? 31:27) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 31:27) - (0 ? 31:27) + 1))))))) << (0 ? 31:27)))
+                | ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 15:0) - (0 ? 15:0) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 15:0) - (0 ? 15:0) + 1))))))) << (0 ? 15:0))) | (((gctUINT32) ((gctUINT32) (0x0061) & ((gctUINT32) ((((1 ? 15:0) - (0 ? 15:0) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 15:0) - (0 ? 15:0) + 1))))))) << (0 ? 15:0)))
+                | ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 25:16) - (0 ? 25:16) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 25:16) - (0 ? 25:16) + 1))))))) << (0 ? 25:16))) | (((gctUINT32) ((gctUINT32) (1) & ((gctUINT32) ((((1 ? 25:16) - (0 ? 25:16) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 25:16) - (0 ? 25:16) + 1))))))) << (0 ? 25:16)));
+
+            *buffer++ = config;
+
+            *buffer++
+                = ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 31:27) - (0 ? 31:27) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 31:27) - (0 ? 31:27) + 1))))))) << (0 ? 31:27))) | (((gctUINT32) (0x01 & ((gctUINT32) ((((1 ? 31:27) - (0 ? 31:27) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 31:27) - (0 ? 31:27) + 1))))))) << (0 ? 31:27)))
+                | ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 15:0) - (0 ? 15:0) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 15:0) - (0 ? 15:0) + 1))))))) << (0 ? 15:0))) | (((gctUINT32) ((gctUINT32) (0x0060) & ((gctUINT32) ((((1 ? 15:0) - (0 ? 15:0) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 15:0) - (0 ? 15:0) + 1))))))) << (0 ? 15:0)))
+                | ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 25:16) - (0 ? 25:16) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 25:16) - (0 ? 25:16) + 1))))))) << (0 ? 25:16))) | (((gctUINT32) ((gctUINT32) (1) & ((gctUINT32) ((((1 ? 25:16) - (0 ? 25:16) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 25:16) - (0 ? 25:16) + 1))))))) << (0 ? 25:16)));
+
+            *buffer++ = address;
+
+            if (ace)
+            {
+                *buffer++
+                    = ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 31:27) - (0 ? 31:27) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 31:27) - (0 ? 31:27) + 1))))))) << (0 ? 31:27))) | (((gctUINT32) (0x01 & ((gctUINT32) ((((1 ? 31:27) - (0 ? 31:27) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 31:27) - (0 ? 31:27) + 1))))))) << (0 ? 31:27)))
+                    | ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 15:0) - (0 ? 15:0) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 15:0) - (0 ? 15:0) + 1))))))) << (0 ? 15:0))) | (((gctUINT32) ((gctUINT32) (0x0068) & ((gctUINT32) ((((1 ? 15:0) - (0 ? 15:0) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 15:0) - (0 ? 15:0) + 1))))))) << (0 ? 15:0)))
+                    | ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 25:16) - (0 ? 25:16) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 25:16) - (0 ? 25:16) + 1))))))) << (0 ? 25:16))) | (((gctUINT32) ((gctUINT32) (1) & ((gctUINT32) ((((1 ? 25:16) - (0 ? 25:16) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 25:16) - (0 ? 25:16) + 1))))))) << (0 ? 25:16)));
+
+                *buffer++
+                    = configEx;
+            }
+
+            do{*buffer++ = ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 31:27) - (0 ? 31:27) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 31:27) - (0 ? 31:27) + 1))))))) << (0 ? 31:27))) | (((gctUINT32) (0x01 & ((gctUINT32) ((((1 ? 31:27) - (0 ? 31:27) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 31:27) - (0 ? 31:27) + 1))))))) << (0 ? 31:27))) | ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 25:16) - (0 ? 25:16) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 25:16) - (0 ? 25:16) + 1))))))) << (0 ? 25:16))) | (((gctUINT32) ((gctUINT32) (1) & ((gctUINT32) ((((1 ? 25:16) - (0 ? 25:16) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 25:16) - (0 ? 25:16) + 1))))))) << (0 ? 25:16))) | ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 15:0) - (0 ? 15:0) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 15:0) - (0 ? 15:0) + 1))))))) << (0 ? 15:0))) | (((gctUINT32) ((gctUINT32) (0x0E02) & ((gctUINT32) ((((1 ? 15:0) - (0 ? 15:0) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 15:0) - (0 ? 15:0) + 1))))))) << (0 ? 15:0))); *buffer++ = ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 4:0) - (0 ? 4:0) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 4:0) - (0 ? 4:0) + 1))))))) << (0 ? 4:0))) | (((gctUINT32) (0x01 & ((gctUINT32) ((((1 ? 4:0) - (0 ? 4:0) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 4:0) - (0 ? 4:0) + 1))))))) << (0 ? 4:0))) | ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 12:8) - (0 ? 12:8) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 12:8) - (0 ? 12:8) + 1))))))) << (0 ? 12:8))) | (((gctUINT32) (0x07 & ((gctUINT32) ((((1 ? 12:8) - (0 ? 12:8) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 12:8) - (0 ? 12:8) + 1))))))) << (0 ? 12:8))); *buffer++ = ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 31:27) - (0 ? 31:27) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 31:27) - (0 ? 31:27) + 1))))))) << (0 ? 31:27))) | (((gctUINT32) (0x09 & ((gctUINT32) ((((1 ? 31:27) - (0 ? 31:27) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 31:27) - (0 ? 31:27) + 1))))))) << (0 ? 31:27))); *buffer++ = ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 4:0) - (0 ? 4:0) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 4:0) - (0 ? 4:0) + 1))))))) << (0 ? 4:0))) | (((gctUINT32) (0x01 & ((gctUINT32) ((((1 ? 4:0) - (0 ? 4:0) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 4:0) - (0 ? 4:0) + 1))))))) << (0 ? 4:0))) | ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 12:8) - (0 ? 12:8) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 12:8) - (0 ? 12:8) + 1))))))) << (0 ? 12:8))) | (((gctUINT32) (0x07 & ((gctUINT32) ((((1 ? 12:8) - (0 ? 12:8) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 12:8) - (0 ? 12:8) + 1))))))) << (0 ? 12:8)));} while(0);;
+
+            /* LoadState(AQPipeSelect, 1), pipe. */
+            *buffer++
+                = ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 31:27) - (0 ? 31:27) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 31:27) - (0 ? 31:27) + 1))))))) << (0 ? 31:27))) | (((gctUINT32) (0x01 & ((gctUINT32) ((((1 ? 31:27) - (0 ? 31:27) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 31:27) - (0 ? 31:27) + 1))))))) << (0 ? 31:27)))
+                | ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 15:0) - (0 ? 15:0) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 15:0) - (0 ? 15:0) + 1))))))) << (0 ? 15:0))) | (((gctUINT32) ((gctUINT32) (0x0E00) & ((gctUINT32) ((((1 ? 15:0) - (0 ? 15:0) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 15:0) - (0 ? 15:0) + 1))))))) << (0 ? 15:0)))
+                | ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 25:16) - (0 ? 25:16) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 25:16) - (0 ? 25:16) + 1))))))) << (0 ? 25:16))) | (((gctUINT32) ((gctUINT32) (1) & ((gctUINT32) ((((1 ? 25:16) - (0 ? 25:16) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 25:16) - (0 ? 25:16) + 1))))))) << (0 ? 25:16)));
+
+            *buffer++ = 0x0;
+
+            do{*buffer++ = ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 31:27) - (0 ? 31:27) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 31:27) - (0 ? 31:27) + 1))))))) << (0 ? 31:27))) | (((gctUINT32) (0x01 & ((gctUINT32) ((((1 ? 31:27) - (0 ? 31:27) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 31:27) - (0 ? 31:27) + 1))))))) << (0 ? 31:27))) | ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 25:16) - (0 ? 25:16) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 25:16) - (0 ? 25:16) + 1))))))) << (0 ? 25:16))) | (((gctUINT32) ((gctUINT32) (1) & ((gctUINT32) ((((1 ? 25:16) - (0 ? 25:16) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 25:16) - (0 ? 25:16) + 1))))))) << (0 ? 25:16))) | ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 15:0) - (0 ? 15:0) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 15:0) - (0 ? 15:0) + 1))))))) << (0 ? 15:0))) | (((gctUINT32) ((gctUINT32) (0x0E02) & ((gctUINT32) ((((1 ? 15:0) - (0 ? 15:0) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 15:0) - (0 ? 15:0) + 1))))))) << (0 ? 15:0))); *buffer++ = ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 4:0) - (0 ? 4:0) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 4:0) - (0 ? 4:0) + 1))))))) << (0 ? 4:0))) | (((gctUINT32) (0x01 & ((gctUINT32) ((((1 ? 4:0) - (0 ? 4:0) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 4:0) - (0 ? 4:0) + 1))))))) << (0 ? 4:0))) | ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 12:8) - (0 ? 12:8) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 12:8) - (0 ? 12:8) + 1))))))) << (0 ? 12:8))) | (((gctUINT32) (0x07 & ((gctUINT32) ((((1 ? 12:8) - (0 ? 12:8) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 12:8) - (0 ? 12:8) + 1))))))) << (0 ? 12:8))); *buffer++ = ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 31:27) - (0 ? 31:27) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 31:27) - (0 ? 31:27) + 1))))))) << (0 ? 31:27))) | (((gctUINT32) (0x09 & ((gctUINT32) ((((1 ? 31:27) - (0 ? 31:27) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 31:27) - (0 ? 31:27) + 1))))))) << (0 ? 31:27))); *buffer++ = ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 4:0) - (0 ? 4:0) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 4:0) - (0 ? 4:0) + 1))))))) << (0 ? 4:0))) | (((gctUINT32) (0x01 & ((gctUINT32) ((((1 ? 4:0) - (0 ? 4:0) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 4:0) - (0 ? 4:0) + 1))))))) << (0 ? 4:0))) | ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 12:8) - (0 ? 12:8) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 12:8) - (0 ? 12:8) + 1))))))) << (0 ? 12:8))) | (((gctUINT32) (0x07 & ((gctUINT32) ((((1 ? 12:8) - (0 ? 12:8) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 12:8) - (0 ? 12:8) + 1))))))) << (0 ? 12:8)));} while(0);;
+        }
+
+    }
+
+    if (Bytes != gcvNULL)
+    {
+        *Bytes = reserveBytes;
+    }
+
+    /* Return the status. */
+    gcmkFOOTER_NO();
+    return status;
+
+OnError:
+    /* Return the status. */
+    gcmkFOOTER();
+    return status;
+}
+
+#if gcdPROCESS_ADDRESS_SPACE
+/*******************************************************************************
+**
+**  gckHARDWARE_ConfigMMU
+**
+**  Append a MMU Configuration command sequence at the specified location in the command
+**  queue. That command sequence consists of mmu configuration, LINK and WAIT/LINK.
+**  LINK is fetched and paresed with new mmu configuration.
+**
+**  If MMU Configuration is not changed between commit, change last WAIT/LINK to
+**  link to ENTRY.
+**
+**  -+-----------+-----------+-----------------------------------------
+**   | WAIT/LINK | WAIT/LINK |
+**  -+-----------+-----------+-----------------------------------------
+**         |          /|\
+**        \|/          |
+**    +--------------------+
+**    | ENTRY | ... | LINK |
+**    +--------------------+
+**
+**  If MMU Configuration is changed between commit, change last WAIT/LINK to
+**  link to MMU CONFIGURATION command sequence, and there are an EVNET and
+**  an END at the end of this command sequence, when interrupt handler
+**  receives this event, it will start FE at ENTRY to continue the command
+**  buffer execution.
+**
+**  -+-----------+-------------------+---------+---------+-----------+--
+**   | WAIT/LINK | MMU CONFIGURATION |  EVENT  |  END    | WAIT/LINK |
+**  -+-----------+-------------------+---------+---------+-----------+--
+**        |            /|\                                   /|\
+**        +-------------+                                     |
+**                                          +--------------------+
+**                                          | ENTRY | ... | LINK |
+**                                          +--------------------+
+**  INPUT:
+**
+**      gckHARDWARE Hardware
+**          Pointer to an gckHARDWARE object.
+**
+**      gctPOINTER Logical
+**          Pointer to the current location inside the command queue to append
+**          command sequence at or gcvNULL just to query the size of the
+**          command sequence.
+**
+**      gctPOINTER MtlbLogical
+**          Pointer to the current Master TLB.
+**
+**      gctUINT32 Offset
+**          Offset into command buffer required for alignment.
+**
+**      gctSIZE_T * Bytes
+**          Pointer to the number of bytes available for the command
+**          sequence.  If 'Logical' is gcvNULL, this argument will be ignored.
+**
+**  OUTPUT:
+**
+**      gctSIZE_T * Bytes
+**          Pointer to a variable that will receive the number of bytes required
+**          by the command sequence.  If 'Bytes' is gcvNULL, nothing will
+**          be returned.
+**
+**      gctUINT32 * WaitLinkOffset
+**          Pointer to a variable that will receive the offset of the WAIT/LINK command
+**          from the specified logcial pointer.
+**          If 'WaitLinkOffset' is gcvNULL nothing will be returned.
+**
+**      gctSIZE_T * WaitLinkBytes
+**          Pointer to a variable that will receive the number of bytes used by
+**          the WAIT command.
+**          If 'WaitLinkBytes' is gcvNULL nothing will be returned.
+*/
+gceSTATUS
+gckHARDWARE_ConfigMMU(
+    IN gckHARDWARE Hardware,
+    IN gctPOINTER Logical,
+    IN gctPOINTER MtlbLogical,
+    IN gctUINT32 Offset,
+    IN OUT gctSIZE_T * Bytes,
+    OUT gctSIZE_T * WaitLinkOffset,
+    OUT gctSIZE_T * WaitLinkBytes
+    )
+{
+    gceSTATUS status;
+    gctSIZE_T bytes, bytesAligned;
+    gctUINT32 config;
+    gctUINT32_PTR buffer = (gctUINT32_PTR) Logical;
+    gctUINT32 physical;
+    gctUINT32 event;
+    gctSIZE_T stCmds; /* semaphore stall cmd size */;
+
+    gcmkHEADER_ARG("Hardware=0x%08X Logical=0x%08x MtlbLogical=0x%08X",
+                   Hardware, Logical, MtlbLogical);
+
+    stCmds = gckHARDWARE_IsFeatureAvailable(Hardware, gcvFEATURE_TEX_CACHE_FLUSH_FIX) ? 0 : 4;
+
+    bytes
+        /* Semaphore stall states. */
+        = stCmds * 4
+        /* Flush cache states. */
+        + 20 * 4
+        /* MMU configuration states. */
+        + 6 * 4
+        /* EVENT. */
+        + 2 * 4
+        /* END. */
+        + 2 * 4
+        /* WAIT/LINK. */
+        + 4 * 4;
+
+    /* Compute number of bytes required. */
+    bytesAligned = gcmALIGN(Offset + bytes, 8) - Offset;
+
+    if (buffer != gcvNULL)
+    {
+        if (MtlbLogical == gcvNULL)
+        {
+            gcmkONERROR(gcvSTATUS_INVALID_ARGUMENT);
+        }
+
+        /* Get physical address of this command buffer segment. */
+        gcmkONERROR(gckOS_GetPhysicalAddress(Hardware->os, buffer, &physical));
+
+        /* Get physical address of Master TLB. */
+        gcmkONERROR(gckOS_GetPhysicalAddress(Hardware->os, MtlbLogical, &config));
+
+        config |= ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 0:0) - (0 ? 0:0) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 0:0) - (0 ? 0:0) + 1))))))) << (0 ? 0:0))) | (((gctUINT32) (0x0 & ((gctUINT32) ((((1 ? 0:0) - (0 ? 0:0) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 0:0) - (0 ? 0:0) + 1))))))) << (0 ? 0:0)))
+                | ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 4:4) - (0 ? 4:4) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 4:4) - (0 ? 4:4) + 1))))))) << (0 ? 4:4))) | (((gctUINT32) (0x1 & ((gctUINT32) ((((1 ? 4:4) - (0 ? 4:4) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 4:4) - (0 ? 4:4) + 1))))))) << (0 ? 4:4)));
+
+        if (stCmds)
+        {
+            /* Arm the PE-FE Semaphore. */
+            *buffer++
+                = ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 31:27) - (0 ? 31:27) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 31:27) - (0 ? 31:27) + 1))))))) << (0 ? 31:27))) | (((gctUINT32) (0x01 & ((gctUINT32) ((((1 ? 31:27) - (0 ? 31:27) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 31:27) - (0 ? 31:27) + 1))))))) << (0 ? 31:27)))
+                | ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 25:16) - (0 ? 25:16) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 25:16) - (0 ? 25:16) + 1))))))) << (0 ? 25:16))) | (((gctUINT32) ((gctUINT32) (1) & ((gctUINT32) ((((1 ? 25:16) - (0 ? 25:16) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 25:16) - (0 ? 25:16) + 1))))))) << (0 ? 25:16)))
+                | ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 15:0) - (0 ? 15:0) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 15:0) - (0 ? 15:0) + 1))))))) << (0 ? 15:0))) | (((gctUINT32) ((gctUINT32) (0x0E02) & ((gctUINT32) ((((1 ? 15:0) - (0 ? 15:0) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 15:0) - (0 ? 15:0) + 1))))))) << (0 ? 15:0)));
+
+            *buffer++
+                = ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 4:0) - (0 ? 4:0) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 4:0) - (0 ? 4:0) + 1))))))) << (0 ? 4:0))) | (((gctUINT32) (0x01 & ((gctUINT32) ((((1 ? 4:0) - (0 ? 4:0) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 4:0) - (0 ? 4:0) + 1))))))) << (0 ? 4:0)))
+                | ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 12:8) - (0 ? 12:8) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 12:8) - (0 ? 12:8) + 1))))))) << (0 ? 12:8))) | (((gctUINT32) (0x07 & ((gctUINT32) ((((1 ? 12:8) - (0 ? 12:8) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 12:8) - (0 ? 12:8) + 1))))))) << (0 ? 12:8)));
+
+            /* STALL FE until PE is done flushing. */
+            *buffer++
+                = ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 31:27) - (0 ? 31:27) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 31:27) - (0 ? 31:27) + 1))))))) << (0 ? 31:27))) | (((gctUINT32) (0x09 & ((gctUINT32) ((((1 ? 31:27) - (0 ? 31:27) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 31:27) - (0 ? 31:27) + 1))))))) << (0 ? 31:27)));
+
+            *buffer++
+                = ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 4:0) - (0 ? 4:0) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 4:0) - (0 ? 4:0) + 1))))))) << (0 ? 4:0))) | (((gctUINT32) (0x01 & ((gctUINT32) ((((1 ? 4:0) - (0 ? 4:0) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 4:0) - (0 ? 4:0) + 1))))))) << (0 ? 4:0)))
+                | ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 12:8) - (0 ? 12:8) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 12:8) - (0 ? 12:8) + 1))))))) << (0 ? 12:8))) | (((gctUINT32) (0x07 & ((gctUINT32) ((((1 ? 12:8) - (0 ? 12:8) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 12:8) - (0 ? 12:8) + 1))))))) << (0 ? 12:8)));
+        }
+
+        /* Flush cache. */
+        *buffer++
+            = ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 31:27) - (0 ? 31:27) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 31:27) - (0 ? 31:27) + 1))))))) << (0 ? 31:27))) | (((gctUINT32) (0x01 & ((gctUINT32) ((((1 ? 31:27) - (0 ? 31:27) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 31:27) - (0 ? 31:27) + 1))))))) << (0 ? 31:27)))
+            | ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 25:16) - (0 ? 25:16) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 25:16) - (0 ? 25:16) + 1))))))) << (0 ? 25:16))) | (((gctUINT32) ((gctUINT32) (1) & ((gctUINT32) ((((1 ? 25:16) - (0 ? 25:16) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 25:16) - (0 ? 25:16) + 1))))))) << (0 ? 25:16)))
+            | ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 15:0) - (0 ? 15:0) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 15:0) - (0 ? 15:0) + 1))))))) << (0 ? 15:0))) | (((gctUINT32) ((gctUINT32) (0x0E03) & ((gctUINT32) ((((1 ? 15:0) - (0 ? 15:0) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 15:0) - (0 ? 15:0) + 1))))))) << (0 ? 15:0)));
+
+        *buffer++
+            = ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 3:3) - (0 ? 3:3) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 3:3) - (0 ? 3:3) + 1))))))) << (0 ? 3:3))) | (((gctUINT32) (0x1 & ((gctUINT32) ((((1 ? 3:3) - (0 ? 3:3) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 3:3) - (0 ? 3:3) + 1))))))) << (0 ? 3:3)))
+            | ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 1:1) - (0 ? 1:1) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 1:1) - (0 ? 1:1) + 1))))))) << (0 ? 1:1))) | (((gctUINT32) (0x1 & ((gctUINT32) ((((1 ? 1:1) - (0 ? 1:1) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 1:1) - (0 ? 1:1) + 1))))))) << (0 ? 1:1)))
+            | ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 0:0) - (0 ? 0:0) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 0:0) - (0 ? 0:0) + 1))))))) << (0 ? 0:0))) | (((gctUINT32) (0x1 & ((gctUINT32) ((((1 ? 0:0) - (0 ? 0:0) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 0:0) - (0 ? 0:0) + 1))))))) << (0 ? 0:0)))
+            | ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 2:2) - (0 ? 2:2) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 2:2) - (0 ? 2:2) + 1))))))) << (0 ? 2:2))) | (((gctUINT32) (0x1 & ((gctUINT32) ((((1 ? 2:2) - (0 ? 2:2) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 2:2) - (0 ? 2:2) + 1))))))) << (0 ? 2:2)))
+            | ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 5:5) - (0 ? 5:5) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 5:5) - (0 ? 5:5) + 1))))))) << (0 ? 5:5))) | (((gctUINT32) (0x1 & ((gctUINT32) ((((1 ? 5:5) - (0 ? 5:5) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 5:5) - (0 ? 5:5) + 1))))))) << (0 ? 5:5)))
+            | ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 6:6) - (0 ? 6:6) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 6:6) - (0 ? 6:6) + 1))))))) << (0 ? 6:6))) | (((gctUINT32) (0x1 & ((gctUINT32) ((((1 ? 6:6) - (0 ? 6:6) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 6:6) - (0 ? 6:6) + 1))))))) << (0 ? 6:6)));
+
+        /* Flush VTS in separate command */
+        *buffer++
+            = ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 31:27) - (0 ? 31:27) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 31:27) - (0 ? 31:27) + 1))))))) << (0 ? 31:27))) | (((gctUINT32) (0x01 & ((gctUINT32) ((((1 ? 31:27) - (0 ? 31:27) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 31:27) - (0 ? 31:27) + 1))))))) << (0 ? 31:27)))
+            | ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 25:16) - (0 ? 25:16) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 25:16) - (0 ? 25:16) + 1))))))) << (0 ? 25:16))) | (((gctUINT32) ((gctUINT32) (1) & ((gctUINT32) ((((1 ? 25:16) - (0 ? 25:16) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 25:16) - (0 ? 25:16) + 1))))))) << (0 ? 25:16)))
+            | ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 15:0) - (0 ? 15:0) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 15:0) - (0 ? 15:0) + 1))))))) << (0 ? 15:0))) | (((gctUINT32) ((gctUINT32) (0x0E03) & ((gctUINT32) ((((1 ? 15:0) - (0 ? 15:0) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 15:0) - (0 ? 15:0) + 1))))))) << (0 ? 15:0)));
+
+        *buffer++
+            = ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 4:4) - (0 ? 4:4) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 4:4) - (0 ? 4:4) + 1))))))) << (0 ? 4:4))) | (((gctUINT32) (0x1 & ((gctUINT32) ((((1 ? 4:4) - (0 ? 4:4) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 4:4) - (0 ? 4:4) + 1))))))) << (0 ? 4:4)));
+
+        /* Flush tile status cache. */
+        *buffer++
+            = ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 31:27) - (0 ? 31:27) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 31:27) - (0 ? 31:27) + 1))))))) << (0 ? 31:27))) | (((gctUINT32) (0x01 & ((gctUINT32) ((((1 ? 31:27) - (0 ? 31:27) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 31:27) - (0 ? 31:27) + 1))))))) << (0 ? 31:27)))
+            | ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 25:16) - (0 ? 25:16) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 25:16) - (0 ? 25:16) + 1))))))) << (0 ? 25:16))) | (((gctUINT32) ((gctUINT32) (1) & ((gctUINT32) ((((1 ? 25:16) - (0 ? 25:16) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 25:16) - (0 ? 25:16) + 1))))))) << (0 ? 25:16)))
+            | ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 15:0) - (0 ? 15:0) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 15:0) - (0 ? 15:0) + 1))))))) << (0 ? 15:0))) | (((gctUINT32) ((gctUINT32) (0x0594) & ((gctUINT32) ((((1 ? 15:0) - (0 ? 15:0) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 15:0) - (0 ? 15:0) + 1))))))) << (0 ? 15:0)));
+
+        *buffer++
+            = ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 0:0) - (0 ? 0:0) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 0:0) - (0 ? 0:0) + 1))))))) << (0 ? 0:0))) | (((gctUINT32) (0x1 & ((gctUINT32) ((((1 ? 0:0) - (0 ? 0:0) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 0:0) - (0 ? 0:0) + 1))))))) << (0 ? 0:0)));
+
+        /* Arm the PE-FE Semaphore. */
+        *buffer++
+            = ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 31:27) - (0 ? 31:27) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 31:27) - (0 ? 31:27) + 1))))))) << (0 ? 31:27))) | (((gctUINT32) (0x01 & ((gctUINT32) ((((1 ? 31:27) - (0 ? 31:27) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 31:27) - (0 ? 31:27) + 1))))))) << (0 ? 31:27)))
+            | ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 25:16) - (0 ? 25:16) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 25:16) - (0 ? 25:16) + 1))))))) << (0 ? 25:16))) | (((gctUINT32) ((gctUINT32) (1) & ((gctUINT32) ((((1 ? 25:16) - (0 ? 25:16) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 25:16) - (0 ? 25:16) + 1))))))) << (0 ? 25:16)))
+            | ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 15:0) - (0 ? 15:0) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 15:0) - (0 ? 15:0) + 1))))))) << (0 ? 15:0))) | (((gctUINT32) ((gctUINT32) (0x0E02) & ((gctUINT32) ((((1 ? 15:0) - (0 ? 15:0) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 15:0) - (0 ? 15:0) + 1))))))) << (0 ? 15:0)));
+
+        *buffer++
+            = ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 4:0) - (0 ? 4:0) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 4:0) - (0 ? 4:0) + 1))))))) << (0 ? 4:0))) | (((gctUINT32) (0x01 & ((gctUINT32) ((((1 ? 4:0) - (0 ? 4:0) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 4:0) - (0 ? 4:0) + 1))))))) << (0 ? 4:0)))
+            | ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 12:8) - (0 ? 12:8) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 12:8) - (0 ? 12:8) + 1))))))) << (0 ? 12:8))) | (((gctUINT32) (0x07 & ((gctUINT32) ((((1 ? 12:8) - (0 ? 12:8) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 12:8) - (0 ? 12:8) + 1))))))) << (0 ? 12:8)));
+
+        /* STALL FE until PE is done flushing. */
+        *buffer++
+            = ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 31:27) - (0 ? 31:27) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 31:27) - (0 ? 31:27) + 1))))))) << (0 ? 31:27))) | (((gctUINT32) (0x09 & ((gctUINT32) ((((1 ? 31:27) - (0 ? 31:27) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 31:27) - (0 ? 31:27) + 1))))))) << (0 ? 31:27)));
+
+        *buffer++
+            = ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 4:0) - (0 ? 4:0) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 4:0) - (0 ? 4:0) + 1))))))) << (0 ? 4:0))) | (((gctUINT32) (0x01 & ((gctUINT32) ((((1 ? 4:0) - (0 ? 4:0) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 4:0) - (0 ? 4:0) + 1))))))) << (0 ? 4:0)))
+            | ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 12:8) - (0 ? 12:8) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 12:8) - (0 ? 12:8) + 1))))))) << (0 ? 12:8))) | (((gctUINT32) (0x07 & ((gctUINT32) ((((1 ? 12:8) - (0 ? 12:8) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 12:8) - (0 ? 12:8) + 1))))))) << (0 ? 12:8)));
+
+        /* LINK to next slot to flush FE FIFO. */
+        *buffer++
+            = ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 31:27) - (0 ? 31:27) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 31:27) - (0 ? 31:27) + 1))))))) << (0 ? 31:27))) | (((gctUINT32) (0x08 & ((gctUINT32) ((((1 ? 31:27) - (0 ? 31:27) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 31:27) - (0 ? 31:27) + 1))))))) << (0 ? 31:27)))
+            | ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 15:0) - (0 ? 15:0) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 15:0) - (0 ? 15:0) + 1))))))) << (0 ? 15:0))) | (((gctUINT32) ((gctUINT32) (4) & ((gctUINT32) ((((1 ? 15:0) - (0 ? 15:0) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 15:0) - (0 ? 15:0) + 1))))))) << (0 ? 15:0)));
+
+        *buffer++
+            = physical + (stCmds + 12) * gcmSIZEOF(gctUINT32);
+
+        /* Configure MMU. */
+        *buffer++
+            = ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 31:27) - (0 ? 31:27) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 31:27) - (0 ? 31:27) + 1))))))) << (0 ? 31:27))) | (((gctUINT32) (0x01 & ((gctUINT32) ((((1 ? 31:27) - (0 ? 31:27) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 31:27) - (0 ? 31:27) + 1))))))) << (0 ? 31:27)))
+            | ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 15:0) - (0 ? 15:0) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 15:0) - (0 ? 15:0) + 1))))))) << (0 ? 15:0))) | (((gctUINT32) ((gctUINT32) (0x0061) & ((gctUINT32) ((((1 ? 15:0) - (0 ? 15:0) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 15:0) - (0 ? 15:0) + 1))))))) << (0 ? 15:0)))
+            | ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 25:16) - (0 ? 25:16) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 25:16) - (0 ? 25:16) + 1))))))) << (0 ? 25:16))) | (((gctUINT32) ((gctUINT32) (1) & ((gctUINT32) ((((1 ? 25:16) - (0 ? 25:16) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 25:16) - (0 ? 25:16) + 1))))))) << (0 ? 25:16)));
+
+        *buffer++
+            = (((((gctUINT32) (~0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 4:4) - (0 ? 4:4) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 4:4) - (0 ? 4:4) + 1))))))) << (0 ? 4:4))) | (((gctUINT32) (0x1 & ((gctUINT32) ((((1 ? 4:4) - (0 ? 4:4) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 4:4) - (0 ? 4:4) + 1))))))) << (0 ? 4:4))) &  ((((gctUINT32) (~0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 7:7) - (0 ? 7:7) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 7:7) - (0 ? 7:7) + 1))))))) << (0 ? 7:7))) | (((gctUINT32) (0x0 & ((gctUINT32) ((((1 ? 7:7) - (0 ? 7:7) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 7:7) - (0 ? 7:7) + 1))))))) << (0 ? 7:7))));
+
+        /* Arm the PE-FE Semaphore. */
+        *buffer++
+            = ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 31:27) - (0 ? 31:27) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 31:27) - (0 ? 31:27) + 1))))))) << (0 ? 31:27))) | (((gctUINT32) (0x01 & ((gctUINT32) ((((1 ? 31:27) - (0 ? 31:27) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 31:27) - (0 ? 31:27) + 1))))))) << (0 ? 31:27)))
+            | ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 25:16) - (0 ? 25:16) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 25:16) - (0 ? 25:16) + 1))))))) << (0 ? 25:16))) | (((gctUINT32) ((gctUINT32) (1) & ((gctUINT32) ((((1 ? 25:16) - (0 ? 25:16) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 25:16) - (0 ? 25:16) + 1))))))) << (0 ? 25:16)))
+            | ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 15:0) - (0 ? 15:0) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 15:0) - (0 ? 15:0) + 1))))))) << (0 ? 15:0))) | (((gctUINT32) ((gctUINT32) (0x0E02) & ((gctUINT32) ((((1 ? 15:0) - (0 ? 15:0) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 15:0) - (0 ? 15:0) + 1))))))) << (0 ? 15:0)));
+
+        *buffer++
+            = ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 4:0) - (0 ? 4:0) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 4:0) - (0 ? 4:0) + 1))))))) << (0 ? 4:0))) | (((gctUINT32) (0x01 & ((gctUINT32) ((((1 ? 4:0) - (0 ? 4:0) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 4:0) - (0 ? 4:0) + 1))))))) << (0 ? 4:0)))
+            | ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 12:8) - (0 ? 12:8) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 12:8) - (0 ? 12:8) + 1))))))) << (0 ? 12:8))) | (((gctUINT32) (0x07 & ((gctUINT32) ((((1 ? 12:8) - (0 ? 12:8) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 12:8) - (0 ? 12:8) + 1))))))) << (0 ? 12:8)));
+
+        /* STALL FE until PE is done flushing. */
+        *buffer++
+            = ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 31:27) - (0 ? 31:27) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 31:27) - (0 ? 31:27) + 1))))))) << (0 ? 31:27))) | (((gctUINT32) (0x09 & ((gctUINT32) ((((1 ? 31:27) - (0 ? 31:27) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 31:27) - (0 ? 31:27) + 1))))))) << (0 ? 31:27)));
+
+        *buffer++
+            = ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 4:0) - (0 ? 4:0) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 4:0) - (0 ? 4:0) + 1))))))) << (0 ? 4:0))) | (((gctUINT32) (0x01 & ((gctUINT32) ((((1 ? 4:0) - (0 ? 4:0) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 4:0) - (0 ? 4:0) + 1))))))) << (0 ? 4:0)))
+            | ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 12:8) - (0 ? 12:8) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 12:8) - (0 ? 12:8) + 1))))))) << (0 ? 12:8))) | (((gctUINT32) (0x07 & ((gctUINT32) ((((1 ? 12:8) - (0 ? 12:8) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 12:8) - (0 ? 12:8) + 1))))))) << (0 ? 12:8)));
+
+        /* LINK to next slot to flush FE FIFO. */
+        *buffer++
+            = ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 31:27) - (0 ? 31:27) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 31:27) - (0 ? 31:27) + 1))))))) << (0 ? 31:27))) | (((gctUINT32) (0x08 & ((gctUINT32) ((((1 ? 31:27) - (0 ? 31:27) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 31:27) - (0 ? 31:27) + 1))))))) << (0 ? 31:27)))
+            | ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 15:0) - (0 ? 15:0) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 15:0) - (0 ? 15:0) + 1))))))) << (0 ? 15:0))) | (((gctUINT32) ((gctUINT32) (5) & ((gctUINT32) ((((1 ? 15:0) - (0 ? 15:0) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 15:0) - (0 ? 15:0) + 1))))))) << (0 ? 15:0)));
+
+        *buffer++
+            = physical + (stCmds + 20) * 4;
+
+        *buffer++
+            = ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 31:27) - (0 ? 31:27) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 31:27) - (0 ? 31:27) + 1))))))) << (0 ? 31:27))) | (((gctUINT32) (0x01 & ((gctUINT32) ((((1 ? 31:27) - (0 ? 31:27) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 31:27) - (0 ? 31:27) + 1))))))) << (0 ? 31:27)))
+            | ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 15:0) - (0 ? 15:0) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 15:0) - (0 ? 15:0) + 1))))))) << (0 ? 15:0))) | (((gctUINT32) ((gctUINT32) (0x0061) & ((gctUINT32) ((((1 ? 15:0) - (0 ? 15:0) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 15:0) - (0 ? 15:0) + 1))))))) << (0 ? 15:0)))
+            | ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 25:16) - (0 ? 25:16) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 25:16) - (0 ? 25:16) + 1))))))) << (0 ? 25:16))) | (((gctUINT32) ((gctUINT32) (1) & ((gctUINT32) ((((1 ? 25:16) - (0 ? 25:16) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 25:16) - (0 ? 25:16) + 1))))))) << (0 ? 25:16)));
+
+        *buffer++
+            = config;
+
+        /* Arm the PE-FE Semaphore. */
+        *buffer++
+            = ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 31:27) - (0 ? 31:27) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 31:27) - (0 ? 31:27) + 1))))))) << (0 ? 31:27))) | (((gctUINT32) (0x01 & ((gctUINT32) ((((1 ? 31:27) - (0 ? 31:27) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 31:27) - (0 ? 31:27) + 1))))))) << (0 ? 31:27)))
+            | ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 25:16) - (0 ? 25:16) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 25:16) - (0 ? 25:16) + 1))))))) << (0 ? 25:16))) | (((gctUINT32) ((gctUINT32) (1) & ((gctUINT32) ((((1 ? 25:16) - (0 ? 25:16) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 25:16) - (0 ? 25:16) + 1))))))) << (0 ? 25:16)))
+            | ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 15:0) - (0 ? 15:0) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 15:0) - (0 ? 15:0) + 1))))))) << (0 ? 15:0))) | (((gctUINT32) ((gctUINT32) (0x0E02) & ((gctUINT32) ((((1 ? 15:0) - (0 ? 15:0) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 15:0) - (0 ? 15:0) + 1))))))) << (0 ? 15:0)));
+
+        *buffer++
+            = ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 4:0) - (0 ? 4:0) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 4:0) - (0 ? 4:0) + 1))))))) << (0 ? 4:0))) | (((gctUINT32) (0x01 & ((gctUINT32) ((((1 ? 4:0) - (0 ? 4:0) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 4:0) - (0 ? 4:0) + 1))))))) << (0 ? 4:0)))
+            | ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 12:8) - (0 ? 12:8) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 12:8) - (0 ? 12:8) + 1))))))) << (0 ? 12:8))) | (((gctUINT32) (0x07 & ((gctUINT32) ((((1 ? 12:8) - (0 ? 12:8) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 12:8) - (0 ? 12:8) + 1))))))) << (0 ? 12:8)));
+
+        /* STALL FE until PE is done flushing. */
+        *buffer++
+            = ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 31:27) - (0 ? 31:27) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 31:27) - (0 ? 31:27) + 1))))))) << (0 ? 31:27))) | (((gctUINT32) (0x09 & ((gctUINT32) ((((1 ? 31:27) - (0 ? 31:27) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 31:27) - (0 ? 31:27) + 1))))))) << (0 ? 31:27)));
+
+        *buffer++
+            = ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 4:0) - (0 ? 4:0) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 4:0) - (0 ? 4:0) + 1))))))) << (0 ? 4:0))) | (((gctUINT32) (0x01 & ((gctUINT32) ((((1 ? 4:0) - (0 ? 4:0) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 4:0) - (0 ? 4:0) + 1))))))) << (0 ? 4:0)))
+            | ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 12:8) - (0 ? 12:8) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 12:8) - (0 ? 12:8) + 1))))))) << (0 ? 12:8))) | (((gctUINT32) (0x07 & ((gctUINT32) ((((1 ? 12:8) - (0 ? 12:8) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 12:8) - (0 ? 12:8) + 1))))))) << (0 ? 12:8)));
+
+        /* Event 29. */
+        *buffer++
+            = ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 31:27) - (0 ? 31:27) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 31:27) - (0 ? 31:27) + 1))))))) << (0 ? 31:27))) | (((gctUINT32) (0x01 & ((gctUINT32) ((((1 ? 31:27) - (0 ? 31:27) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 31:27) - (0 ? 31:27) + 1))))))) << (0 ? 31:27)))
+            | ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 15:0) - (0 ? 15:0) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 15:0) - (0 ? 15:0) + 1))))))) << (0 ? 15:0))) | (((gctUINT32) ((gctUINT32) (0x0E01) & ((gctUINT32) ((((1 ? 15:0) - (0 ? 15:0) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 15:0) - (0 ? 15:0) + 1))))))) << (0 ? 15:0)))
+            | ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 25:16) - (0 ? 25:16) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 25:16) - (0 ? 25:16) + 1))))))) << (0 ? 25:16))) | (((gctUINT32) ((gctUINT32) (1) & ((gctUINT32) ((((1 ? 25:16) - (0 ? 25:16) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 25:16) - (0 ? 25:16) + 1))))))) << (0 ? 25:16)));
+
+        event = ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 6:6) - (0 ? 6:6) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 6:6) - (0 ? 6:6) + 1))))))) << (0 ? 6:6))) | (((gctUINT32) (0x1 & ((gctUINT32) ((((1 ? 6:6) - (0 ? 6:6) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 6:6) - (0 ? 6:6) + 1))))))) << (0 ? 6:6)));
+        event = ((((gctUINT32) (event)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 4:0) - (0 ? 4:0) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 4:0) - (0 ? 4:0) + 1))))))) << (0 ? 4:0))) | (((gctUINT32) ((gctUINT32) (29) & ((gctUINT32) ((((1 ? 4:0) - (0 ? 4:0) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 4:0) - (0 ? 4:0) + 1))))))) << (0 ? 4:0)));
+
+        *buffer++
+            = event;
+
+        /* Append END. */
+        *buffer++
+           = ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 31:27) - (0 ? 31:27) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 31:27) - (0 ? 31:27) + 1))))))) << (0 ? 31:27))) | (((gctUINT32) (0x02 & ((gctUINT32) ((((1 ? 31:27) - (0 ? 31:27) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 31:27) - (0 ? 31:27) + 1))))))) << (0 ? 31:27)));
+    }
+
+    if (Bytes != gcvNULL)
+    {
+        *Bytes = bytesAligned;
+    }
+
+    if (WaitLinkOffset != gcvNULL)
+    {
+        *WaitLinkOffset = bytes - 4 * 4;
+    }
+
+    if (WaitLinkBytes != gcvNULL)
+    {
+        *WaitLinkBytes = 4 * 4;
+    }
+
+    gcmkFOOTER_NO();
+    return gcvSTATUS_OK;
+
+OnError:
+    gcmkFOOTER();
+    return status;
+}
+#endif
+
+/*******************************************************************************
+**
+**  gckHARDWARE_BuildVirtualAddress
+**
+**  Build a virtual address.
+**
+**  INPUT:
+**
+**      gckHARDWARE Harwdare
+**          Pointer to an gckHARDWARE object.
+**
+**      gctUINT32 Index
+**          Index into page table.
+**
+**      gctUINT32 Offset
+**          Offset into page.
+**
+**  OUTPUT:
+**
+**      gctUINT32 * Address
+**          Pointer to a variable receiving te hardware address.
+*/
+gceSTATUS
+gckHARDWARE_BuildVirtualAddress(
+    IN gckHARDWARE Hardware,
+    IN gctUINT32 Index,
+    IN gctUINT32 Offset,
+    OUT gctUINT32 * Address
+    )
+{
+    gcmkHEADER_ARG("Hardware=0x%x Index=%u Offset=%u", Hardware, Index, Offset);
+
+    /* Verify the arguments. */
+    gcmkVERIFY_OBJECT(Hardware, gcvOBJ_HARDWARE);
+    gcmkVERIFY_ARGUMENT(Address != gcvNULL);
+
+    /* Build virtual address. */
+    *Address = ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 31:31) - (0 ? 31:31) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 31:31) - (0 ? 31:31) + 1))))))) << (0 ? 31:31))) | (((gctUINT32) (0x1 & ((gctUINT32) ((((1 ? 31:31) - (0 ? 31:31) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 31:31) - (0 ? 31:31) + 1))))))) << (0 ? 31:31)))
+             | ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 30:0) - (0 ? 30:0) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 30:0) - (0 ? 30:0) + 1))))))) << (0 ? 30:0))) | (((gctUINT32) ((gctUINT32) (Offset | (Index << 12)) & ((gctUINT32) ((((1 ? 30:0) - (0 ? 30:0) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 30:0) - (0 ? 30:0) + 1))))))) << (0 ? 30:0)));
+
+    /* Success. */
+    gcmkFOOTER_ARG("*Address=0x%08x", *Address);
+    return gcvSTATUS_OK;
+}
+
+gceSTATUS
+gckHARDWARE_GetIdle(
+    IN gckHARDWARE Hardware,
+    IN gctBOOL Wait,
+    OUT gctUINT32 * Data
+    )
+{
+    gceSTATUS status;
+    gctUINT32 idle = 0;
+    gctINT retry, poll, pollCount;
+    gctUINT32 address;
+
+    gcmkHEADER_ARG("Hardware=0x%x Wait=%d", Hardware, Wait);
+
+    /* Verify the arguments. */
+    gcmkVERIFY_OBJECT(Hardware, gcvOBJ_HARDWARE);
+    gcmkVERIFY_ARGUMENT(Data != gcvNULL);
+
+
+    /* If we have to wait, try 100 polls per millisecond. */
+    pollCount = Wait ? 100 : 1;
+
+    /* At most, try for 1 second. */
+    for (retry = 0; retry < 1000; ++retry)
+    {
+        /* If we have to wait, try 100 polls per millisecond. */
+        for (poll = pollCount; poll > 0; --poll)
+        {
+            /* Read register. */
+            gcmkONERROR(
+                gckOS_ReadRegisterEx(Hardware->os, Hardware->core, 0x00004, &idle));
+
+            /* Read the current FE address. */
+            gcmkONERROR(gckOS_ReadRegisterEx(Hardware->os,
+                                             Hardware->core,
+                                             0x00664,
+                                             &address));
+
+
+            /* See if we have to wait for FE idle. */
+            if (_IsGPUIdle(idle)
+             && (address == Hardware->lastEnd + 8)
+             )
+            {
+                /* FE is idle. */
+                break;
+            }
+        }
+
+        /* Check if we need to wait for FE and FE is busy. */
+        if (Wait && !_IsGPUIdle(idle))
+        {
+            /* Wait a little. */
+            gcmkTRACE_ZONE(gcvLEVEL_INFO, gcvZONE_HARDWARE,
+                           "%s: Waiting for idle: 0x%08X",
+                           __FUNCTION__, idle);
+
+            gcmkVERIFY_OK(gckOS_Delay(Hardware->os, 1));
+        }
+        else
+        {
+            break;
+        }
+    }
+
+    /* Return idle to caller. */
+    *Data = idle;
+
+#if defined(EMULATOR)
+    /* Wait a little while until CModel FE gets END.
+     * END is supposed to be appended by caller.
+     */
+    gckOS_Delay(gcvNULL, 100);
+#endif
+
+    /* Success. */
+    gcmkFOOTER_ARG("*Data=0x%08x", *Data);
+    return gcvSTATUS_OK;
+
+OnError:
+    /* Return the status. */
+    gcmkFOOTER();
+    return status;
+}
+
+/* Flush the caches. */
+gceSTATUS
+gckHARDWARE_Flush(
+    IN gckHARDWARE Hardware,
+    IN gceKERNEL_FLUSH Flush,
+    IN gctPOINTER Logical,
+    IN OUT gctUINT32 * Bytes
+    )
+{
+    gctUINT32 pipe;
+    gctUINT32 flush = 0;
+    gctUINT32 flushVST = 0;
+    gctBOOL flushTileStatus;
+    gctUINT32_PTR logical = (gctUINT32_PTR) Logical;
+    gceSTATUS status;
+
+    gcmkHEADER_ARG("Hardware=0x%x Flush=0x%x Logical=0x%x *Bytes=%lu",
+                   Hardware, Flush, Logical, gcmOPT_VALUE(Bytes));
+
+    /* Verify the arguments. */
+    gcmkVERIFY_OBJECT(Hardware, gcvOBJ_HARDWARE);
+
+    /* Get current pipe. */
+    pipe = Hardware->kernel->command->pipeSelect;
+
+    /* Flush tile status cache. */
+    flushTileStatus = Flush & gcvFLUSH_TILE_STATUS;
+
+    /* Flush 3D color cache. */
+    if ((Flush & gcvFLUSH_COLOR) && (pipe == 0x0))
+    {
+        flush |= ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 1:1) - (0 ? 1:1) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 1:1) - (0 ? 1:1) + 1))))))) << (0 ? 1:1))) | (((gctUINT32) (0x1 & ((gctUINT32) ((((1 ? 1:1) - (0 ? 1:1) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 1:1) - (0 ? 1:1) + 1))))))) << (0 ? 1:1)));
+    }
+
+    /* Flush 3D depth cache. */
+    if ((Flush & gcvFLUSH_DEPTH) && (pipe == 0x0))
+    {
+        flush |= ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 0:0) - (0 ? 0:0) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 0:0) - (0 ? 0:0) + 1))))))) << (0 ? 0:0))) | (((gctUINT32) (0x1 & ((gctUINT32) ((((1 ? 0:0) - (0 ? 0:0) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 0:0) - (0 ? 0:0) + 1))))))) << (0 ? 0:0)));
+    }
+
+    /* Flush 3D texture cache. */
+    if ((Flush & gcvFLUSH_TEXTURE) && (pipe == 0x0))
+    {
+        flush |= ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 2:2) - (0 ? 2:2) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 2:2) - (0 ? 2:2) + 1))))))) << (0 ? 2:2))) | (((gctUINT32) (0x1 & ((gctUINT32) ((((1 ? 2:2) - (0 ? 2:2) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 2:2) - (0 ? 2:2) + 1))))))) << (0 ? 2:2)));
+        flushVST = ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 4:4) - (0 ? 4:4) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 4:4) - (0 ? 4:4) + 1))))))) << (0 ? 4:4))) | (((gctUINT32) (0x1 & ((gctUINT32) ((((1 ? 4:4) - (0 ? 4:4) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 4:4) - (0 ? 4:4) + 1))))))) << (0 ? 4:4)));
+    }
+
+    /* Flush 2D cache. */
+    if ((Flush & gcvFLUSH_2D) && (pipe == 0x1))
+    {
+        flush |= ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 3:3) - (0 ? 3:3) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 3:3) - (0 ? 3:3) + 1))))))) << (0 ? 3:3))) | (((gctUINT32) (0x1 & ((gctUINT32) ((((1 ? 3:3) - (0 ? 3:3) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 3:3) - (0 ? 3:3) + 1))))))) << (0 ? 3:3)));
+    }
+
+
+    /* See if there is a valid flush. */
+    if ((flush == 0) && (flushTileStatus == gcvFALSE))
+    {
+        if (Bytes != gcvNULL)
+        {
+            /* No bytes required. */
+            *Bytes = 0;
+        }
+    }
+    else
+    {
+        gctUINT32 reserveBytes = 0;
+        gctBOOL txCacheFix = gckHARDWARE_IsFeatureAvailable(Hardware, gcvFEATURE_TEX_CACHE_FLUSH_FIX)
+                           ? gcvTRUE : gcvFALSE;
+
+        /* Determine reserve bytes. */
+        if (!txCacheFix)
+        {
+            /* Semaphore/Stall */
+            reserveBytes += 4 * gcmSIZEOF(gctUINT32);
+        }
+
+        if (flush)
+        {
+            reserveBytes += 2 * gcmSIZEOF(gctUINT32);
+        }
+
+        if (flushVST)
+        {
+            reserveBytes += 2 * gcmSIZEOF(gctUINT32);
+        }
+
+        if (flushTileStatus)
+        {
+            reserveBytes += 2 * gcmSIZEOF(gctUINT32);
+        }
+
+        /* Semaphore/Stall */
+        reserveBytes += 4 * gcmSIZEOF(gctUINT32);
+
+        /* Copy to command queue. */
+        if (Logical != gcvNULL)
+        {
+            if (*Bytes < reserveBytes)
+            {
+                /* Command queue too small. */
+                gcmkONERROR(gcvSTATUS_BUFFER_TOO_SMALL);
+            }
+
+            if (!txCacheFix)
+            {
+                /* Semaphore. */
+                *logical++
+                    = ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 31:27) - (0 ? 31:27) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 31:27) - (0 ? 31:27) + 1))))))) << (0 ? 31:27))) | (((gctUINT32) (0x01 & ((gctUINT32) ((((1 ? 31:27) - (0 ? 31:27) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 31:27) - (0 ? 31:27) + 1))))))) << (0 ? 31:27)))
+                    | ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 25:16) - (0 ? 25:16) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 25:16) - (0 ? 25:16) + 1))))))) << (0 ? 25:16))) | (((gctUINT32) ((gctUINT32) (1) & ((gctUINT32) ((((1 ? 25:16) - (0 ? 25:16) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 25:16) - (0 ? 25:16) + 1))))))) << (0 ? 25:16)))
+                    | ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 15:0) - (0 ? 15:0) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 15:0) - (0 ? 15:0) + 1))))))) << (0 ? 15:0))) | (((gctUINT32) ((gctUINT32) (0x0E02) & ((gctUINT32) ((((1 ? 15:0) - (0 ? 15:0) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 15:0) - (0 ? 15:0) + 1))))))) << (0 ? 15:0)));
+
+                *logical++
+                    = ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 4:0) - (0 ? 4:0) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 4:0) - (0 ? 4:0) + 1))))))) << (0 ? 4:0))) | (((gctUINT32) (0x01 & ((gctUINT32) ((((1 ? 4:0) - (0 ? 4:0) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 4:0) - (0 ? 4:0) + 1))))))) << (0 ? 4:0)))
+                    | ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 12:8) - (0 ? 12:8) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 12:8) - (0 ? 12:8) + 1))))))) << (0 ? 12:8))) | (((gctUINT32) (0x07 & ((gctUINT32) ((((1 ? 12:8) - (0 ? 12:8) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 12:8) - (0 ? 12:8) + 1))))))) << (0 ? 12:8)));
+
+                /* Stall. */
+                *logical++
+                    = ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 31:27) - (0 ? 31:27) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 31:27) - (0 ? 31:27) + 1))))))) << (0 ? 31:27))) | (((gctUINT32) (0x09 & ((gctUINT32) ((((1 ? 31:27) - (0 ? 31:27) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 31:27) - (0 ? 31:27) + 1))))))) << (0 ? 31:27)));
+
+                *logical++
+                    = ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 4:0) - (0 ? 4:0) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 4:0) - (0 ? 4:0) + 1))))))) << (0 ? 4:0))) | (((gctUINT32) (0x01 & ((gctUINT32) ((((1 ? 4:0) - (0 ? 4:0) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 4:0) - (0 ? 4:0) + 1))))))) << (0 ? 4:0)))
+                    | ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 12:8) - (0 ? 12:8) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 12:8) - (0 ? 12:8) + 1))))))) << (0 ? 12:8))) | (((gctUINT32) (0x07 & ((gctUINT32) ((((1 ? 12:8) - (0 ? 12:8) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 12:8) - (0 ? 12:8) + 1))))))) << (0 ? 12:8)));
+            }
+
+            if (flush)
+            {
+                /* Append LOAD_STATE to AQFlush. */
+                *logical++
+                    = ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 31:27) - (0 ? 31:27) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 31:27) - (0 ? 31:27) + 1))))))) << (0 ? 31:27))) | (((gctUINT32) (0x01 & ((gctUINT32) ((((1 ? 31:27) - (0 ? 31:27) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 31:27) - (0 ? 31:27) + 1))))))) << (0 ? 31:27)))
+                    | ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 15:0) - (0 ? 15:0) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 15:0) - (0 ? 15:0) + 1))))))) << (0 ? 15:0))) | (((gctUINT32) ((gctUINT32) (0x0E03) & ((gctUINT32) ((((1 ? 15:0) - (0 ? 15:0) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 15:0) - (0 ? 15:0) + 1))))))) << (0 ? 15:0)))
+                    | ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 25:16) - (0 ? 25:16) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 25:16) - (0 ? 25:16) + 1))))))) << (0 ? 25:16))) | (((gctUINT32) ((gctUINT32) (1) & ((gctUINT32) ((((1 ? 25:16) - (0 ? 25:16) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 25:16) - (0 ? 25:16) + 1))))))) << (0 ? 25:16)));
+
+                *logical++ = flush;
+
+                gcmkTRACE_ZONE(gcvLEVEL_INFO, gcvZONE_HARDWARE, "0x%x: FLUSH 0x%x", logical - 1, flush);
+            }
+
+            if (flushVST)
+            {
+                /* Append LOAD_STATE to AQFlush. */
+                *logical++
+                    = ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 31:27) - (0 ? 31:27) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 31:27) - (0 ? 31:27) + 1))))))) << (0 ? 31:27))) | (((gctUINT32) (0x01 & ((gctUINT32) ((((1 ? 31:27) - (0 ? 31:27) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 31:27) - (0 ? 31:27) + 1))))))) << (0 ? 31:27)))
+                    | ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 15:0) - (0 ? 15:0) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 15:0) - (0 ? 15:0) + 1))))))) << (0 ? 15:0))) | (((gctUINT32) ((gctUINT32) (0x0E03) & ((gctUINT32) ((((1 ? 15:0) - (0 ? 15:0) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 15:0) - (0 ? 15:0) + 1))))))) << (0 ? 15:0)))
+                    | ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 25:16) - (0 ? 25:16) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 25:16) - (0 ? 25:16) + 1))))))) << (0 ? 25:16))) | (((gctUINT32) ((gctUINT32) (1) & ((gctUINT32) ((((1 ? 25:16) - (0 ? 25:16) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 25:16) - (0 ? 25:16) + 1))))))) << (0 ? 25:16)));
+
+                *logical++ = flushVST;
+
+                gcmkTRACE_ZONE(gcvLEVEL_INFO, gcvZONE_HARDWARE, "0x%x: FLUSH 0x%x", logical - 1, flush);
+            }
+
+            if (flushTileStatus)
+            {
+                *logical++
+                    = ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 31:27) - (0 ? 31:27) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 31:27) - (0 ? 31:27) + 1))))))) << (0 ? 31:27))) | (((gctUINT32) (0x01 & ((gctUINT32) ((((1 ? 31:27) - (0 ? 31:27) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 31:27) - (0 ? 31:27) + 1))))))) << (0 ? 31:27)))
+                    | ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 15:0) - (0 ? 15:0) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 15:0) - (0 ? 15:0) + 1))))))) << (0 ? 15:0))) | (((gctUINT32) ((gctUINT32) (0x0594) & ((gctUINT32) ((((1 ? 15:0) - (0 ? 15:0) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 15:0) - (0 ? 15:0) + 1))))))) << (0 ? 15:0)))
+                    | ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 25:16) - (0 ? 25:16) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 25:16) - (0 ? 25:16) + 1))))))) << (0 ? 25:16))) | (((gctUINT32) ((gctUINT32) (1) & ((gctUINT32) ((((1 ? 25:16) - (0 ? 25:16) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 25:16) - (0 ? 25:16) + 1))))))) << (0 ? 25:16)));
+
+                *logical++
+                    = ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 0:0) - (0 ? 0:0) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 0:0) - (0 ? 0:0) + 1))))))) << (0 ? 0:0))) | (((gctUINT32) (0x1 & ((gctUINT32) ((((1 ? 0:0) - (0 ? 0:0) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 0:0) - (0 ? 0:0) + 1))))))) << (0 ? 0:0)));
+
+                gcmkTRACE_ZONE(gcvLEVEL_INFO, gcvZONE_HARDWARE,
+                               "0x%x: FLUSH TILE STATUS 0x%x", logical - 1, logical[-1]);
+            }
+
+            /* Semaphore. */
+            *logical++
+                = ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 31:27) - (0 ? 31:27) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 31:27) - (0 ? 31:27) + 1))))))) << (0 ? 31:27))) | (((gctUINT32) (0x01 & ((gctUINT32) ((((1 ? 31:27) - (0 ? 31:27) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 31:27) - (0 ? 31:27) + 1))))))) << (0 ? 31:27)))
+                | ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 25:16) - (0 ? 25:16) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 25:16) - (0 ? 25:16) + 1))))))) << (0 ? 25:16))) | (((gctUINT32) ((gctUINT32) (1) & ((gctUINT32) ((((1 ? 25:16) - (0 ? 25:16) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 25:16) - (0 ? 25:16) + 1))))))) << (0 ? 25:16)))
+                | ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 15:0) - (0 ? 15:0) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 15:0) - (0 ? 15:0) + 1))))))) << (0 ? 15:0))) | (((gctUINT32) ((gctUINT32) (0x0E02) & ((gctUINT32) ((((1 ? 15:0) - (0 ? 15:0) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 15:0) - (0 ? 15:0) + 1))))))) << (0 ? 15:0)));
+
+            *logical++
+                = ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 4:0) - (0 ? 4:0) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 4:0) - (0 ? 4:0) + 1))))))) << (0 ? 4:0))) | (((gctUINT32) (0x01 & ((gctUINT32) ((((1 ? 4:0) - (0 ? 4:0) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 4:0) - (0 ? 4:0) + 1))))))) << (0 ? 4:0)))
+                | ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 12:8) - (0 ? 12:8) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 12:8) - (0 ? 12:8) + 1))))))) << (0 ? 12:8))) | (((gctUINT32) (0x07 & ((gctUINT32) ((((1 ? 12:8) - (0 ? 12:8) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 12:8) - (0 ? 12:8) + 1))))))) << (0 ? 12:8)));
+
+            /* Stall. */
+            *logical++
+                = ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 31:27) - (0 ? 31:27) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 31:27) - (0 ? 31:27) + 1))))))) << (0 ? 31:27))) | (((gctUINT32) (0x09 & ((gctUINT32) ((((1 ? 31:27) - (0 ? 31:27) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 31:27) - (0 ? 31:27) + 1))))))) << (0 ? 31:27)));
+
+            *logical++
+                = ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 4:0) - (0 ? 4:0) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 4:0) - (0 ? 4:0) + 1))))))) << (0 ? 4:0))) | (((gctUINT32) (0x01 & ((gctUINT32) ((((1 ? 4:0) - (0 ? 4:0) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 4:0) - (0 ? 4:0) + 1))))))) << (0 ? 4:0)))
+                | ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 12:8) - (0 ? 12:8) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 12:8) - (0 ? 12:8) + 1))))))) << (0 ? 12:8))) | (((gctUINT32) (0x07 & ((gctUINT32) ((((1 ? 12:8) - (0 ? 12:8) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 12:8) - (0 ? 12:8) + 1))))))) << (0 ? 12:8)));
+        }
+
+        if (Bytes != gcvNULL)
+        {
+            /* bytes required. */
+            *Bytes = reserveBytes;
+        }
+    }
+
+    /* Success. */
+    gcmkFOOTER_ARG("*Bytes=%lu", gcmOPT_VALUE(Bytes));
+    return gcvSTATUS_OK;
+
+OnError:
+    /* Return the status. */
+    gcmkFOOTER();
+    return status;
+}
+
+gceSTATUS
+gckHARDWARE_SetFastClear(
+    IN gckHARDWARE Hardware,
+    IN gctINT Enable,
+    IN gctINT Compression
+    )
+{
+    return gcvSTATUS_OK;
+}
+
+typedef enum
+{
+    gcvPOWER_FLAG_INITIALIZE    = 1 << 0,
+    gcvPOWER_FLAG_STALL         = 1 << 1,
+    gcvPOWER_FLAG_STOP          = 1 << 2,
+    gcvPOWER_FLAG_START         = 1 << 3,
+    gcvPOWER_FLAG_RELEASE       = 1 << 4,
+    gcvPOWER_FLAG_DELAY         = 1 << 5,
+    gcvPOWER_FLAG_SAVE          = 1 << 6,
+    gcvPOWER_FLAG_ACQUIRE       = 1 << 7,
+    gcvPOWER_FLAG_POWER_OFF     = 1 << 8,
+    gcvPOWER_FLAG_CLOCK_OFF     = 1 << 9,
+    gcvPOWER_FLAG_CLOCK_ON      = 1 << 10,
+}
+gcePOWER_FLAGS;
+
+#if gcmIS_DEBUG(gcdDEBUG_TRACE)
+static gctCONST_STRING
+_PowerEnum(gceCHIPPOWERSTATE State)
+{
+    const gctCONST_STRING states[] =
+    {
+        gcmSTRING(gcvPOWER_ON),
+        gcmSTRING(gcvPOWER_OFF),
+        gcmSTRING(gcvPOWER_IDLE),
+        gcmSTRING(gcvPOWER_SUSPEND),
+        gcmSTRING(gcvPOWER_SUSPEND_ATPOWERON),
+        gcmSTRING(gcvPOWER_OFF_ATPOWERON),
+        gcmSTRING(gcvPOWER_IDLE_BROADCAST),
+        gcmSTRING(gcvPOWER_SUSPEND_BROADCAST),
+        gcmSTRING(gcvPOWER_OFF_BROADCAST),
+        gcmSTRING(gcvPOWER_OFF_RECOVERY),
+        gcmSTRING(gcvPOWER_OFF_TIMEOUT),
+        gcmSTRING(gcvPOWER_ON_AUTO)
+    };
+
+    if ((State >= gcvPOWER_ON) && (State <= gcvPOWER_ON_AUTO))
+    {
+        return states[State - gcvPOWER_ON];
+    }
+
+    return "unknown";
+}
+#endif
+
+/*******************************************************************************
+**
+**  gckHARDWARE_SetPowerManagementState
+**
+**  Set GPU to a specified power state.
+**
+**  INPUT:
+**
+**      gckHARDWARE Harwdare
+**          Pointer to an gckHARDWARE object.
+**
+**      gceCHIPPOWERSTATE State
+**          Power State.
+**
+*/
+gceSTATUS
+gckHARDWARE_SetPowerManagementState(
+    IN gckHARDWARE Hardware,
+    IN gceCHIPPOWERSTATE State
+    )
+{
+    gceSTATUS status;
+    gckCOMMAND command = gcvNULL;
+    gckOS os;
+    gctUINT flag, clock;
+    gctPOINTER buffer;
+    gctUINT32 bytes, requested;
+    gctBOOL acquired = gcvFALSE;
+    gctBOOL mutexAcquired = gcvFALSE;
+    gctBOOL stall = gcvTRUE;
+    gctBOOL broadcast = gcvFALSE;
+#if gcdPOWEROFF_TIMEOUT
+    gctBOOL timeout = gcvFALSE;
+    gctBOOL isAfter = gcvFALSE;
+    gctUINT32 currentTime;
+#endif
+    gctUINT32 process, thread;
+    gctBOOL commitEntered = gcvFALSE;
+    gctBOOL commandStarted = gcvFALSE;
+    gctBOOL isrStarted = gcvFALSE;
+
+#if gcdENABLE_PROFILING
+    gctUINT64 time, freq, mutexTime, onTime, stallTime, stopTime, delayTime,
+              initTime, offTime, startTime, totalTime;
+#endif
+    gctBOOL global = gcvFALSE;
+    gctBOOL globalAcquired = gcvFALSE;
+    gctBOOL configMmu = gcvFALSE;
+
+    /* State transition flags. */
+    static const gctUINT flags[4][4] =
+    {
+        /* gcvPOWER_ON           */
+        {   /* ON                */ 0,
+            /* OFF               */ gcvPOWER_FLAG_ACQUIRE   |
+                                    gcvPOWER_FLAG_STALL     |
+                                    gcvPOWER_FLAG_STOP      |
+                                    gcvPOWER_FLAG_POWER_OFF |
+                                    gcvPOWER_FLAG_CLOCK_OFF,
+            /* IDLE              */ gcvPOWER_FLAG_ACQUIRE   |
+                                    gcvPOWER_FLAG_STALL,
+            /* SUSPEND           */ gcvPOWER_FLAG_ACQUIRE   |
+                                    gcvPOWER_FLAG_STALL     |
+                                    gcvPOWER_FLAG_STOP      |
+                                    gcvPOWER_FLAG_CLOCK_OFF,
+        },
+
+        /* gcvPOWER_OFF          */
+        {   /* ON                */ gcvPOWER_FLAG_INITIALIZE |
+                                    gcvPOWER_FLAG_START      |
+                                    gcvPOWER_FLAG_RELEASE    |
+                                    gcvPOWER_FLAG_DELAY,
+            /* OFF               */ 0,
+            /* IDLE              */ gcvPOWER_FLAG_INITIALIZE |
+                                    gcvPOWER_FLAG_START      |
+                                    gcvPOWER_FLAG_DELAY,
+            /* SUSPEND           */ gcvPOWER_FLAG_INITIALIZE |
+                                    gcvPOWER_FLAG_CLOCK_OFF,
+        },
+
+        /* gcvPOWER_IDLE         */
+        {   /* ON                */ gcvPOWER_FLAG_RELEASE,
+            /* OFF               */ gcvPOWER_FLAG_STOP      |
+                                    gcvPOWER_FLAG_POWER_OFF |
+                                    gcvPOWER_FLAG_CLOCK_OFF,
+            /* IDLE              */ 0,
+            /* SUSPEND           */ gcvPOWER_FLAG_STOP      |
+                                    gcvPOWER_FLAG_CLOCK_OFF,
+        },
+
+        /* gcvPOWER_SUSPEND      */
+        {   /* ON                */ gcvPOWER_FLAG_START     |
+                                    gcvPOWER_FLAG_RELEASE   |
+                                    gcvPOWER_FLAG_DELAY     |
+                                    gcvPOWER_FLAG_CLOCK_ON,
+            /* OFF               */ gcvPOWER_FLAG_SAVE      |
+                                    gcvPOWER_FLAG_POWER_OFF |
+                                    gcvPOWER_FLAG_CLOCK_OFF,
+            /* IDLE              */ gcvPOWER_FLAG_START     |
+                                    gcvPOWER_FLAG_DELAY     |
+                                    gcvPOWER_FLAG_CLOCK_ON,
+            /* SUSPEND           */ 0,
+        },
+    };
+
+    /* Clocks. */
+    static const gctUINT clocks[4] =
+    {
+        /* gcvPOWER_ON */
+        ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 0:0) - (0 ? 0:0) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 0:0) - (0 ? 0:0) + 1))))))) << (0 ? 0:0))) | (((gctUINT32) ((gctUINT32) (0) & ((gctUINT32) ((((1 ? 0:0) - (0 ? 0:0) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 0:0) - (0 ? 0:0) + 1))))))) << (0 ? 0:0))) |
+        ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 1:1) - (0 ? 1:1) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 1:1) - (0 ? 1:1) + 1))))))) << (0 ? 1:1))) | (((gctUINT32) ((gctUINT32) (0) & ((gctUINT32) ((((1 ? 1:1) - (0 ? 1:1) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 1:1) - (0 ? 1:1) + 1))))))) << (0 ? 1:1))) |
+        ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 8:2) - (0 ? 8:2) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 8:2) - (0 ? 8:2) + 1))))))) << (0 ? 8:2))) | (((gctUINT32) ((gctUINT32) (64) & ((gctUINT32) ((((1 ? 8:2) - (0 ? 8:2) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 8:2) - (0 ? 8:2) + 1))))))) << (0 ? 8:2))) |
+        ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 9:9) - (0 ? 9:9) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 9:9) - (0 ? 9:9) + 1))))))) << (0 ? 9:9))) | (((gctUINT32) ((gctUINT32) (1) & ((gctUINT32) ((((1 ? 9:9) - (0 ? 9:9) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 9:9) - (0 ? 9:9) + 1))))))) << (0 ? 9:9))),
+
+        /* gcvPOWER_OFF */
+        ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 0:0) - (0 ? 0:0) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 0:0) - (0 ? 0:0) + 1))))))) << (0 ? 0:0))) | (((gctUINT32) ((gctUINT32) (1) & ((gctUINT32) ((((1 ? 0:0) - (0 ? 0:0) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 0:0) - (0 ? 0:0) + 1))))))) << (0 ? 0:0))) |
+        ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 1:1) - (0 ? 1:1) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 1:1) - (0 ? 1:1) + 1))))))) << (0 ? 1:1))) | (((gctUINT32) ((gctUINT32) (1) & ((gctUINT32) ((((1 ? 1:1) - (0 ? 1:1) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 1:1) - (0 ? 1:1) + 1))))))) << (0 ? 1:1))) |
+        ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 8:2) - (0 ? 8:2) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 8:2) - (0 ? 8:2) + 1))))))) << (0 ? 8:2))) | (((gctUINT32) ((gctUINT32) (1) & ((gctUINT32) ((((1 ? 8:2) - (0 ? 8:2) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 8:2) - (0 ? 8:2) + 1))))))) << (0 ? 8:2))) |
+        ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 9:9) - (0 ? 9:9) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 9:9) - (0 ? 9:9) + 1))))))) << (0 ? 9:9))) | (((gctUINT32) ((gctUINT32) (1) & ((gctUINT32) ((((1 ? 9:9) - (0 ? 9:9) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 9:9) - (0 ? 9:9) + 1))))))) << (0 ? 9:9))),
+
+        /* gcvPOWER_IDLE */
+        ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 0:0) - (0 ? 0:0) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 0:0) - (0 ? 0:0) + 1))))))) << (0 ? 0:0))) | (((gctUINT32) ((gctUINT32) (0) & ((gctUINT32) ((((1 ? 0:0) - (0 ? 0:0) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 0:0) - (0 ? 0:0) + 1))))))) << (0 ? 0:0))) |
+        ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 1:1) - (0 ? 1:1) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 1:1) - (0 ? 1:1) + 1))))))) << (0 ? 1:1))) | (((gctUINT32) ((gctUINT32) (0) & ((gctUINT32) ((((1 ? 1:1) - (0 ? 1:1) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 1:1) - (0 ? 1:1) + 1))))))) << (0 ? 1:1))) |
+        ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 8:2) - (0 ? 8:2) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 8:2) - (0 ? 8:2) + 1))))))) << (0 ? 8:2))) | (((gctUINT32) ((gctUINT32) (1) & ((gctUINT32) ((((1 ? 8:2) - (0 ? 8:2) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 8:2) - (0 ? 8:2) + 1))))))) << (0 ? 8:2))) |
+        ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 9:9) - (0 ? 9:9) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 9:9) - (0 ? 9:9) + 1))))))) << (0 ? 9:9))) | (((gctUINT32) ((gctUINT32) (1) & ((gctUINT32) ((((1 ? 9:9) - (0 ? 9:9) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 9:9) - (0 ? 9:9) + 1))))))) << (0 ? 9:9))),
+
+        /* gcvPOWER_SUSPEND */
+        ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 0:0) - (0 ? 0:0) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 0:0) - (0 ? 0:0) + 1))))))) << (0 ? 0:0))) | (((gctUINT32) ((gctUINT32) (1) & ((gctUINT32) ((((1 ? 0:0) - (0 ? 0:0) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 0:0) - (0 ? 0:0) + 1))))))) << (0 ? 0:0))) |
+        ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 1:1) - (0 ? 1:1) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 1:1) - (0 ? 1:1) + 1))))))) << (0 ? 1:1))) | (((gctUINT32) ((gctUINT32) (1) & ((gctUINT32) ((((1 ? 1:1) - (0 ? 1:1) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 1:1) - (0 ? 1:1) + 1))))))) << (0 ? 1:1))) |
+        ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 8:2) - (0 ? 8:2) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 8:2) - (0 ? 8:2) + 1))))))) << (0 ? 8:2))) | (((gctUINT32) ((gctUINT32) (1) & ((gctUINT32) ((((1 ? 8:2) - (0 ? 8:2) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 8:2) - (0 ? 8:2) + 1))))))) << (0 ? 8:2))) |
+        ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 9:9) - (0 ? 9:9) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 9:9) - (0 ? 9:9) + 1))))))) << (0 ? 9:9))) | (((gctUINT32) ((gctUINT32) (1) & ((gctUINT32) ((((1 ? 9:9) - (0 ? 9:9) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 9:9) - (0 ? 9:9) + 1))))))) << (0 ? 9:9))),
+    };
+
+    gcmkHEADER_ARG("Hardware=0x%x State=%d", Hardware, State);
+#if gcmIS_DEBUG(gcdDEBUG_TRACE)
+    gcmkTRACE_ZONE(gcvLEVEL_INFO, gcvZONE_HARDWARE,
+                   "Switching to power state %d(%s)",
+                   State, _PowerEnum(State));
+#endif
+
+    /* Verify the arguments. */
+    gcmkVERIFY_OBJECT(Hardware, gcvOBJ_HARDWARE);
+
+    /* Get the gckOS object pointer. */
+    os = Hardware->os;
+    gcmkVERIFY_OBJECT(os, gcvOBJ_OS);
+
+    /* Get the gckCOMMAND object pointer. */
+    gcmkVERIFY_OBJECT(Hardware->kernel, gcvOBJ_KERNEL);
+    command = Hardware->kernel->command;
+    gcmkVERIFY_OBJECT(command, gcvOBJ_COMMAND);
+
+    /* Start profiler. */
+    gcmkPROFILE_INIT(freq, time);
+
+    /* Convert the broadcast power state. */
+    switch (State)
+    {
+    case gcvPOWER_SUSPEND_ATPOWERON:
+        /* Convert to SUSPEND and don't wait for STALL. */
+        State = gcvPOWER_SUSPEND;
+        stall = gcvFALSE;
+        break;
+
+    case gcvPOWER_OFF_ATPOWERON:
+        /* Convert to OFF and don't wait for STALL. */
+        State = gcvPOWER_OFF;
+        stall = gcvFALSE;
+        break;
+
+    case gcvPOWER_IDLE_BROADCAST:
+        /* Convert to IDLE and note we are inside broadcast. */
+        State     = gcvPOWER_IDLE;
+        broadcast = gcvTRUE;
+        break;
+
+    case gcvPOWER_SUSPEND_BROADCAST:
+        /* Convert to SUSPEND and note we are inside broadcast. */
+        State     = gcvPOWER_SUSPEND;
+        broadcast = gcvTRUE;
+        break;
+
+    case gcvPOWER_OFF_BROADCAST:
+        /* Convert to OFF and note we are inside broadcast. */
+        State     = gcvPOWER_OFF;
+        broadcast = gcvTRUE;
+        break;
+
+    case gcvPOWER_OFF_RECOVERY:
+        /* Convert to OFF and note we are inside recovery. */
+        State     = gcvPOWER_OFF;
+        stall     = gcvFALSE;
+        broadcast = gcvTRUE;
+        break;
+
+    case gcvPOWER_ON_AUTO:
+        /* Convert to ON and note we are inside recovery. */
+        State = gcvPOWER_ON;
+        break;
+
+    case gcvPOWER_ON:
+    case gcvPOWER_IDLE:
+    case gcvPOWER_SUSPEND:
+    case gcvPOWER_OFF:
+        /* Mark as global power management. */
+        global = gcvTRUE;
+        break;
+
+#if gcdPOWEROFF_TIMEOUT
+    case gcvPOWER_OFF_TIMEOUT:
+        /* Convert to OFF and note we are inside broadcast. */
+        State     = gcvPOWER_OFF;
+        broadcast = gcvTRUE;
+        /* Check time out */
+        timeout = gcvTRUE;
+        break;
+#endif
+
+    default:
+        break;
+    }
+
+    if (Hardware->powerManagement == gcvFALSE
+     && State != gcvPOWER_ON
+    )
+    {
+        gcmkFOOTER_NO();
+        return gcvSTATUS_OK;
+    }
+
+    /* Get current process and thread IDs. */
+    gcmkONERROR(gckOS_GetProcessID(&process));
+    gcmkONERROR(gckOS_GetThreadID(&thread));
+
+    if (broadcast)
+    {
+        /* Try to acquire the power mutex. */
+        status = gckOS_AcquireMutex(os, Hardware->powerMutex, 0);
+
+        if (status == gcvSTATUS_TIMEOUT)
+        {
+            /* Check if we already own this mutex. */
+            if ((Hardware->powerProcess == process)
+            &&  (Hardware->powerThread  == thread)
+            )
+            {
+                /* Bail out on recursive power management. */
+                gcmkFOOTER_NO();
+                return gcvSTATUS_OK;
+            }
+            else if (State != gcvPOWER_ON)
+            {
+                /* Called from IST,
+                ** so waiting here will cause deadlock,
+                ** if lock holder call gckCOMMAND_Stall() */
+                status = gcvSTATUS_INVALID_REQUEST;
+                goto OnError;
+            }
+            else
+            {
+                /* Acquire the power mutex. */
+                gcmkONERROR(gckOS_AcquireMutex(os,
+                                               Hardware->powerMutex,
+                                               gcvINFINITE));
+            }
+        }
+    }
+    else
+    {
+        /* Acquire the power mutex. */
+        gcmkONERROR(gckOS_AcquireMutex(os, Hardware->powerMutex, gcvINFINITE));
+    }
+
+    /* Get time until mtuex acquired. */
+    gcmkPROFILE_QUERY(time, mutexTime);
+
+    Hardware->powerProcess = process;
+    Hardware->powerThread  = thread;
+    mutexAcquired          = gcvTRUE;
+
+    /* Grab control flags and clock. */
+    flag  = flags[Hardware->chipPowerState][State];
+    clock = clocks[State];
+
+#if gcdENABLE_FSCALE_VAL_ADJUST
+    if (State == gcvPOWER_ON)
+    {
+        clock = ((((gctUINT32) (clock)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 8:2) - (0 ? 8:2) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 8:2) - (0 ? 8:2) + 1))))))) << (0 ? 8:2))) | (((gctUINT32) ((gctUINT32) (Hardware->powerOnFscaleVal) & ((gctUINT32) ((((1 ? 8:2) - (0 ? 8:2) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 8:2) - (0 ? 8:2) + 1))))))) << (0 ? 8:2)));
+    }
+#endif
+
+    if (State == gcvPOWER_SUSPEND && Hardware->chipPowerState == gcvPOWER_OFF && broadcast)
+    {
+#if gcdPOWER_SUSPEND_WHEN_IDLE
+    /* Do nothing */
+
+        /* Release the power mutex. */
+        gcmkONERROR(gckOS_ReleaseMutex(os, Hardware->powerMutex));
+
+           gcmkFOOTER_NO();
+        return gcvSTATUS_OK;
+#else
+    /* Clock should be on when switch power from off to suspend */
+        clock = ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 0:0) - (0 ? 0:0) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 0:0) - (0 ? 0:0) + 1))))))) << (0 ? 0:0))) | (((gctUINT32) ((gctUINT32) (0) & ((gctUINT32) ((((1 ? 0:0) - (0 ? 0:0) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 0:0) - (0 ? 0:0) + 1))))))) << (0 ? 0:0))) |
+                ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 1:1) - (0 ? 1:1) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 1:1) - (0 ? 1:1) + 1))))))) << (0 ? 1:1))) | (((gctUINT32) ((gctUINT32) (0) & ((gctUINT32) ((((1 ? 1:1) - (0 ? 1:1) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 1:1) - (0 ? 1:1) + 1))))))) << (0 ? 1:1))) |
+                ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 8:2) - (0 ? 8:2) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 8:2) - (0 ? 8:2) + 1))))))) << (0 ? 8:2))) | (((gctUINT32) ((gctUINT32) (1) & ((gctUINT32) ((((1 ? 8:2) - (0 ? 8:2) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 8:2) - (0 ? 8:2) + 1))))))) << (0 ? 8:2))) |
+                ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 9:9) - (0 ? 9:9) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 9:9) - (0 ? 9:9) + 1))))))) << (0 ? 9:9))) | (((gctUINT32) ((gctUINT32) (1) & ((gctUINT32) ((((1 ? 9:9) - (0 ? 9:9) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 9:9) - (0 ? 9:9) + 1))))))) << (0 ? 9:9))) ;
+#endif
+    }
+
+#if gcdPOWEROFF_TIMEOUT
+    if (timeout)
+    {
+        gcmkONERROR(gckOS_GetTicks(&currentTime));
+
+        gcmkONERROR(
+            gckOS_TicksAfter(Hardware->powerOffTime, currentTime, &isAfter));
+
+        /* powerOffTime is pushed forward, give up.*/
+        if (isAfter
+        /* Expect a transition start from IDLE or SUSPEND. */
+        ||  (Hardware->chipPowerState == gcvPOWER_ON)
+        ||  (Hardware->chipPowerState == gcvPOWER_OFF)
+        )
+        {
+            /* Release the power mutex. */
+            gcmkONERROR(gckOS_ReleaseMutex(os, Hardware->powerMutex));
+
+            /* No need to do anything. */
+            gcmkFOOTER_NO();
+            return gcvSTATUS_OK;
+        }
+
+        gcmkTRACE_ZONE(gcvLEVEL_INFO, gcvZONE_HARDWARE,
+                       "Power Off GPU[%d] at %u [supposed to be at %u]",
+                       Hardware->core, currentTime, Hardware->powerOffTime);
+    }
+#endif
+
+    if (flag == 0)
+    {
+        /* Release the power mutex. */
+        gcmkONERROR(gckOS_ReleaseMutex(os, Hardware->powerMutex));
+
+        /* No need to do anything. */
+        gcmkFOOTER_NO();
+        return gcvSTATUS_OK;
+    }
+
+    /* If this is an internal power management, we have to check if we can grab
+    ** the global power semaphore. If we cannot, we have to wait until the
+    ** external world changes power management. */
+    if (!global)
+    {
+        /* Try to acquire the global semaphore. */
+        status = gckOS_TryAcquireSemaphore(os, Hardware->globalSemaphore);
+        if (status == gcvSTATUS_TIMEOUT)
+        {
+            if (State == gcvPOWER_IDLE || State == gcvPOWER_SUSPEND)
+            {
+                /* Called from thread routine which should NEVER sleep.*/
+                gcmkONERROR(gcvSTATUS_INVALID_REQUEST);
+            }
+
+            /* Release the power mutex. */
+            gcmkTRACE_ZONE(gcvLEVEL_INFO, gcvZONE_HARDWARE,
+                           "Releasing the power mutex.");
+            gcmkONERROR(gckOS_ReleaseMutex(os, Hardware->powerMutex));
+            mutexAcquired = gcvFALSE;
+
+            /* Wait for the semaphore. */
+            gcmkTRACE_ZONE(gcvLEVEL_INFO, gcvZONE_HARDWARE,
+                           "Waiting for global semaphore.");
+            gcmkONERROR(gckOS_AcquireSemaphore(os, Hardware->globalSemaphore));
+            globalAcquired = gcvTRUE;
+
+            /* Acquire the power mutex. */
+            gcmkTRACE_ZONE(gcvLEVEL_INFO, gcvZONE_HARDWARE,
+                           "Reacquiring the power mutex.");
+            gcmkONERROR(gckOS_AcquireMutex(os,
+                                           Hardware->powerMutex,
+                                           gcvINFINITE));
+            mutexAcquired = gcvTRUE;
+
+            /* chipPowerState may be changed by external world during the time
+            ** we give up powerMutex, so updating flag now is necessary. */
+            flag = flags[Hardware->chipPowerState][State];
+
+            if (flag == 0)
+            {
+                gcmkONERROR(gckOS_ReleaseSemaphore(os, Hardware->globalSemaphore));
+                globalAcquired = gcvFALSE;
+
+                gcmkONERROR(gckOS_ReleaseMutex(os, Hardware->powerMutex));
+                mutexAcquired = gcvFALSE;
+
+                gcmkFOOTER_NO();
+                return gcvSTATUS_OK;
+            }
+        }
+        else
+        {
+            /* Error. */
+            gcmkONERROR(status);
+        }
+
+        /* Release the global semaphore again. */
+        gcmkONERROR(gckOS_ReleaseSemaphore(os, Hardware->globalSemaphore));
+        globalAcquired = gcvFALSE;
+    }
+    else
+    {
+        if (State == gcvPOWER_OFF || State == gcvPOWER_SUSPEND || State == gcvPOWER_IDLE)
+        {
+            /* Acquire the global semaphore if it has not been acquired. */
+            status = gckOS_TryAcquireSemaphore(os, Hardware->globalSemaphore);
+            if (status == gcvSTATUS_OK)
+            {
+                globalAcquired = gcvTRUE;
+            }
+            else if (status != gcvSTATUS_TIMEOUT)
+            {
+                /* Other errors. */
+                gcmkONERROR(status);
+            }
+            /* Ignore gcvSTATUS_TIMEOUT and leave globalAcquired as gcvFALSE.
+            ** gcvSTATUS_TIMEOUT means global semaphore has already
+            ** been acquired before this operation, so even if we fail,
+            ** we should not release it in our error handling. It should be
+            ** released by the next successful global gcvPOWER_ON. */
+        }
+
+        /* Global power management can't be aborted, so sync with
+        ** proceeding last commit. */
+        if (flag & gcvPOWER_FLAG_ACQUIRE)
+        {
+            /* Acquire the power management semaphore. */
+            gcmkONERROR(gckOS_AcquireSemaphore(os, command->powerSemaphore));
+            acquired = gcvTRUE;
+
+            /* avoid acquiring again. */
+            flag &= ~gcvPOWER_FLAG_ACQUIRE;
+        }
+    }
+
+    if (flag & (gcvPOWER_FLAG_INITIALIZE | gcvPOWER_FLAG_CLOCK_ON))
+    {
+        /* Turn on the power. */
+        gcmkONERROR(gckOS_SetGPUPower(os, Hardware->core, gcvTRUE, gcvTRUE));
+
+        /* Mark clock and power as enabled. */
+        Hardware->clockState = gcvTRUE;
+        Hardware->powerState = gcvTRUE;
+
+        for (;;)
+        {
+            /* Check if GPU is present and awake. */
+            status = _IsGPUPresent(Hardware);
+
+            /* Check if the GPU is not responding. */
+            if (status == gcvSTATUS_GPU_NOT_RESPONDING)
+            {
+                /* Turn off the power and clock. */
+                gcmkONERROR(gckOS_SetGPUPower(os, Hardware->core, gcvFALSE, gcvFALSE));
+
+                Hardware->clockState = gcvFALSE;
+                Hardware->powerState = gcvFALSE;
+
+                /* Wait a little. */
+                gckOS_Delay(os, 1);
+
+                /* Turn on the power and clock. */
+                gcmkONERROR(gckOS_SetGPUPower(os, Hardware->core, gcvTRUE, gcvTRUE));
+
+                Hardware->clockState = gcvTRUE;
+                Hardware->powerState = gcvTRUE;
+
+                /* We need to initialize the hardware and start the command
+                 * processor. */
+                flag |= gcvPOWER_FLAG_INITIALIZE | gcvPOWER_FLAG_START;
+            }
+            else
+            {
+                /* Test for error. */
+                gcmkONERROR(status);
+
+                /* Break out of loop. */
+                break;
+            }
+        }
+    }
+
+    /* Get time until powered on. */
+    gcmkPROFILE_QUERY(time, onTime);
+
+    if ((flag & gcvPOWER_FLAG_STALL) && stall)
+    {
+        gctBOOL idle;
+        gctINT32 atomValue;
+
+        /* For global operation, all pending commits have already been
+        ** blocked by globalSemaphore or powerSemaphore.*/
+        if (!global)
+        {
+            /* Check commit atom. */
+            gcmkONERROR(gckOS_AtomGet(os, command->atomCommit, &atomValue));
+
+            if (atomValue > 0)
+            {
+                /* Commits are pending - abort power management. */
+                status = broadcast ? gcvSTATUS_CHIP_NOT_READY
+                                   : gcvSTATUS_MORE_DATA;
+                goto OnError;
+            }
+        }
+
+        if (broadcast)
+        {
+            /* Check for idle. */
+            gcmkONERROR(gckHARDWARE_QueryIdle(Hardware, &idle));
+
+            if (!idle)
+            {
+                status = gcvSTATUS_CHIP_NOT_READY;
+                goto OnError;
+            }
+        }
+
+        else
+        {
+            /* Acquire the command queue. */
+            gcmkONERROR(gckCOMMAND_EnterCommit(command, gcvTRUE));
+            commitEntered = gcvTRUE;
+
+            /* Get the size of the flush command. */
+            gcmkONERROR(gckHARDWARE_Flush(Hardware,
+                                          gcvFLUSH_ALL,
+                                          gcvNULL,
+                                          &requested));
+
+            /* Reserve space in the command queue. */
+            gcmkONERROR(gckCOMMAND_Reserve(command,
+                                           requested,
+                                           &buffer,
+                                           &bytes));
+
+            /* Append a flush. */
+            gcmkONERROR(gckHARDWARE_Flush(
+                Hardware, gcvFLUSH_ALL, buffer, &bytes
+                ));
+
+            /* Execute the command queue. */
+            gcmkONERROR(gckCOMMAND_Execute(command, requested));
+
+            /* Release the command queue. */
+            gcmkONERROR(gckCOMMAND_ExitCommit(command, gcvTRUE));
+            commitEntered = gcvFALSE;
+
+            /* Wait to finish all commands. */
+            gcmkONERROR(gckCOMMAND_Stall(command, gcvTRUE));
+        }
+    }
+
+    /* Get time until stalled. */
+    gcmkPROFILE_QUERY(time, stallTime);
+
+    if (flag & gcvPOWER_FLAG_ACQUIRE)
+    {
+        /* Acquire the power management semaphore. */
+        gcmkONERROR(gckOS_AcquireSemaphore(os, command->powerSemaphore));
+        acquired = gcvTRUE;
+    }
+
+    if (flag & gcvPOWER_FLAG_STOP)
+    {
+        /* Stop the command parser. */
+        gcmkONERROR(gckCOMMAND_Stop(command, gcvFALSE));
+
+        /* Stop the Isr. */
+        if (Hardware->stopIsr)
+        {
+            gcmkONERROR(Hardware->stopIsr(Hardware->isrContext));
+        }
+    }
+
+    /* Flush Cache before Power Off. */
+    if (flag & gcvPOWER_FLAG_POWER_OFF)
+    {
+        if (Hardware->clockState == gcvFALSE)
+        {
+            /* Turn off the GPU power. */
+            gcmkONERROR(
+                    gckOS_SetGPUPower(os,
+                        Hardware->core,
+                        gcvTRUE,
+                        gcvTRUE));
+
+            Hardware->clockState = gcvTRUE;
+
+            if (gckHARDWARE_IsFeatureAvailable(Hardware, gcvFEATURE_DYNAMIC_FREQUENCY_SCALING) != gcvTRUE)
+            {
+                /* Write the clock control register. */
+                gcmkONERROR(gckOS_WriteRegisterEx(os,
+                                                  Hardware->core,
+                                                  0x00000,
+                                                  clocks[0]));
+
+                /* Done loading the frequency scaler. */
+                gcmkONERROR(gckOS_WriteRegisterEx(os,
+                                                  Hardware->core,
+                                                  0x00000,
+                                                  ((((gctUINT32) (clocks[0])) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 9:9) - (0 ? 9:9) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 9:9) - (0 ? 9:9) + 1))))))) << (0 ? 9:9))) | (((gctUINT32) ((gctUINT32) (0) & ((gctUINT32) ((((1 ? 9:9) - (0 ? 9:9) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 9:9) - (0 ? 9:9) + 1))))))) << (0 ? 9:9)))));
+            }
+        }
+
+        gcmkONERROR(gckCOMMAND_Start(command));
+
+        gcmkONERROR(_FlushCache(Hardware, command));
+
+        gckOS_Delay(gcvNULL, 1);
+
+        /* Stop the command parser. */
+        gcmkONERROR(gckCOMMAND_Stop(command, gcvFALSE));
+
+        flag |= gcvPOWER_FLAG_CLOCK_OFF;
+    }
+
+    /* Get time until stopped. */
+    gcmkPROFILE_QUERY(time, stopTime);
+
+    /* Only process this when hardware is enabled. */
+    if (Hardware->clockState && Hardware->powerState
+    /* Don't touch clock control if dynamic frequency scaling is available. */
+    && gckHARDWARE_IsFeatureAvailable(Hardware, gcvFEATURE_DYNAMIC_FREQUENCY_SCALING) != gcvTRUE
+    )
+    {
+        if (flag & (gcvPOWER_FLAG_POWER_OFF | gcvPOWER_FLAG_CLOCK_OFF))
+        {
+            if (Hardware->identity.chipModel == gcv4000
+            && ((Hardware->identity.chipRevision == 0x5208) || (Hardware->identity.chipRevision == 0x5222)))
+            {
+                clock &= ~2U;
+            }
+        }
+
+        /* Write the clock control register. */
+        gcmkONERROR(gckOS_WriteRegisterEx(os,
+                                          Hardware->core,
+                                          0x00000,
+                                          clock));
+
+        /* Done loading the frequency scaler. */
+        gcmkONERROR(gckOS_WriteRegisterEx(os,
+                                          Hardware->core,
+                                          0x00000,
+                                          ((((gctUINT32) (clock)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 9:9) - (0 ? 9:9) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 9:9) - (0 ? 9:9) + 1))))))) << (0 ? 9:9))) | (((gctUINT32) ((gctUINT32) (0) & ((gctUINT32) ((((1 ? 9:9) - (0 ? 9:9) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 9:9) - (0 ? 9:9) + 1))))))) << (0 ? 9:9)))));
+    }
+
+    if (flag & gcvPOWER_FLAG_DELAY)
+    {
+        /* Wait for the specified amount of time to settle coming back from
+        ** power-off or suspend state. */
+        gcmkONERROR(gckOS_Delay(os, gcdPOWER_CONTROL_DELAY));
+    }
+
+    /* Get time until delayed. */
+    gcmkPROFILE_QUERY(time, delayTime);
+
+    if (flag & gcvPOWER_FLAG_INITIALIZE)
+    {
+        /* Initialize hardware. */
+        gcmkONERROR(gckHARDWARE_InitializeHardware(Hardware));
+
+        gcmkONERROR(gckHARDWARE_SetFastClear(Hardware,
+                                             Hardware->allowFastClear,
+                                             Hardware->allowCompression));
+
+        /* Force the command queue to reload the next context. */
+        command->currContext = gcvNULL;
+
+        /* Need to config mmu after command start. */
+        configMmu = gcvTRUE;
+    }
+
+    /* Get time until initialized. */
+    gcmkPROFILE_QUERY(time, initTime);
+
+    if (flag & (gcvPOWER_FLAG_POWER_OFF | gcvPOWER_FLAG_CLOCK_OFF))
+    {
+        /* Turn off the GPU power. */
+        gcmkONERROR(
+            gckOS_SetGPUPower(os,
+                              Hardware->core,
+                              (flag & gcvPOWER_FLAG_CLOCK_OFF) ? gcvFALSE
+                                                               : gcvTRUE,
+                              (flag & gcvPOWER_FLAG_POWER_OFF) ? gcvFALSE
+                                                               : gcvTRUE));
+
+        /* Save current hardware power and clock states. */
+        Hardware->clockState = (flag & gcvPOWER_FLAG_CLOCK_OFF) ? gcvFALSE
+                                                                : gcvTRUE;
+        Hardware->powerState = (flag & gcvPOWER_FLAG_POWER_OFF) ? gcvFALSE
+                                                                : gcvTRUE;
+    }
+
+    /* Get time until off. */
+    gcmkPROFILE_QUERY(time, offTime);
+
+    if (flag & gcvPOWER_FLAG_START)
+    {
+        /* Start the command processor. */
+        gcmkONERROR(gckCOMMAND_Start(command));
+        commandStarted = gcvTRUE;
+
+        if (Hardware->startIsr)
+        {
+            /* Start the Isr. */
+            gcmkONERROR(Hardware->startIsr(Hardware->isrContext));
+            isrStarted = gcvTRUE;
+        }
+    }
+
+    /* Get time until started. */
+    gcmkPROFILE_QUERY(time, startTime);
+
+    if (flag & gcvPOWER_FLAG_RELEASE)
+    {
+        /* Release the power management semaphore. */
+        gcmkONERROR(gckOS_ReleaseSemaphore(os, command->powerSemaphore));
+        acquired = gcvFALSE;
+
+        if (global)
+        {
+            /* Verify global semaphore has been acquired already before
+            ** we release it.
+            ** If it was acquired, gckOS_TryAcquireSemaphore will return
+            ** gcvSTATUS_TIMEOUT and we release it. Otherwise, global
+            ** semaphore will be acquried now, but it still is released
+            ** immediately. */
+            status = gckOS_TryAcquireSemaphore(os, Hardware->globalSemaphore);
+            if (status != gcvSTATUS_TIMEOUT)
+            {
+                gcmkONERROR(status);
+            }
+
+            /* Release the global semaphore. */
+            gcmkONERROR(gckOS_ReleaseSemaphore(os, Hardware->globalSemaphore));
+            globalAcquired = gcvFALSE;
+        }
+    }
+
+    gckSTATETIMER_Accumulate(&Hardware->powerStateTimer, Hardware->chipPowerState);
+
+    /* Save the new power state. */
+    Hardware->chipPowerState = State;
+
+#if gcdDVFS
+    if (State == gcvPOWER_ON && Hardware->kernel->dvfs)
+    {
+        gckDVFS_Start(Hardware->kernel->dvfs);
+    }
+#endif
+
+#if gcdPOWEROFF_TIMEOUT
+    /* Reset power off time */
+    gcmkONERROR(gckOS_GetTicks(&currentTime));
+
+    Hardware->powerOffTime = currentTime + Hardware->powerOffTimeout;
+
+    if (State == gcvPOWER_IDLE || State == gcvPOWER_SUSPEND)
+    {
+        /* Start a timer to power off GPU when GPU enters IDLE or SUSPEND. */
+        gcmkVERIFY_OK(gckOS_StartTimer(os,
+                                       Hardware->powerOffTimer,
+                                       Hardware->powerOffTimeout));
+    }
+    else
+    {
+        gcmkTRACE_ZONE(gcvLEVEL_INFO, gcvZONE_HARDWARE, "Cancel powerOfftimer");
+
+        /* Cancel running timer when GPU enters ON or OFF. */
+        gcmkVERIFY_OK(gckOS_StopTimer(os, Hardware->powerOffTimer));
+    }
+#endif
+
+    /* Release the power mutex. */
+    gcmkONERROR(gckOS_ReleaseMutex(os, Hardware->powerMutex));
+
+    /* Get total time. */
+    gcmkPROFILE_QUERY(time, totalTime);
+#if gcdENABLE_PROFILING
+    gcmkTRACE_ZONE(gcvLEVEL_INFO, gcvZONE_HARDWARE,
+                   "PROF(%llu): mutex:%llu on:%llu stall:%llu stop:%llu",
+                   freq, mutexTime, onTime, stallTime, stopTime);
+    gcmkTRACE_ZONE(gcvLEVEL_INFO, gcvZONE_HARDWARE,
+                   "  delay:%llu init:%llu off:%llu start:%llu total:%llu",
+                   delayTime, initTime, offTime, startTime, totalTime);
+#endif
+
+    /* Success. */
+    gcmkFOOTER_NO();
+    return gcvSTATUS_OK;
+
+OnError:
+    if (commandStarted)
+    {
+        gcmkVERIFY_OK(gckCOMMAND_Stop(command, gcvFALSE));
+    }
+
+    if (isrStarted)
+    {
+        gcmkVERIFY_OK(Hardware->stopIsr(Hardware->isrContext));
+    }
+
+    if (commitEntered)
+    {
+        /* Release the command queue mutex. */
+        gcmkVERIFY_OK(gckCOMMAND_ExitCommit(command, gcvTRUE));
+    }
+
+    if (acquired)
+    {
+        /* Release semaphore. */
+        gcmkVERIFY_OK(gckOS_ReleaseSemaphore(Hardware->os,
+                                             command->powerSemaphore));
+    }
+
+    if (globalAcquired)
+    {
+        gcmkVERIFY_OK(gckOS_ReleaseSemaphore(Hardware->os,
+                                             Hardware->globalSemaphore));
+    }
+
+    if (mutexAcquired)
+    {
+        gcmkVERIFY_OK(gckOS_ReleaseMutex(Hardware->os, Hardware->powerMutex));
+    }
+
+    /* Return the status. */
+    gcmkFOOTER();
+    return status;
+}
+
+/*******************************************************************************
+**
+**  gckHARDWARE_QueryPowerManagementState
+**
+**  Get GPU power state.
+**
+**  INPUT:
+**
+**      gckHARDWARE Harwdare
+**          Pointer to an gckHARDWARE object.
+**
+**      gceCHIPPOWERSTATE* State
+**          Power State.
+**
+*/
+gceSTATUS
+gckHARDWARE_QueryPowerManagementState(
+    IN gckHARDWARE Hardware,
+    OUT gceCHIPPOWERSTATE* State
+    )
+{
+    gcmkHEADER_ARG("Hardware=0x%x", Hardware);
+
+    /* Verify the arguments. */
+    gcmkVERIFY_OBJECT(Hardware, gcvOBJ_HARDWARE);
+    gcmkVERIFY_ARGUMENT(State != gcvNULL);
+
+    /* Return the statue. */
+    *State = Hardware->chipPowerState;
+
+    /* Success. */
+    gcmkFOOTER_ARG("*State=%d", *State);
+    return gcvSTATUS_OK;
+}
+
+/*******************************************************************************
+**
+**  gckHARDWARE_SetPowerManagement
+**
+**  Configure GPU power management function.
+**  Only used in driver initialization stage.
+**
+**  INPUT:
+**
+**      gckHARDWARE Harwdare
+**          Pointer to an gckHARDWARE object.
+**
+**      gctBOOL PowerManagement
+**          Power Mangement State.
+**
+*/
+gceSTATUS
+gckHARDWARE_SetPowerManagement(
+    IN gckHARDWARE Hardware,
+    IN gctBOOL PowerManagement
+    )
+{
+    gcmkHEADER_ARG("Hardware=0x%x", Hardware);
+
+    /* Verify the arguments. */
+    gcmkVERIFY_OBJECT(Hardware, gcvOBJ_HARDWARE);
+
+    gcmkVERIFY_OK(
+        gckOS_AcquireMutex(Hardware->os, Hardware->powerMutex, gcvINFINITE));
+
+    Hardware->powerManagement = PowerManagement;
+
+    gcmkVERIFY_OK(gckOS_ReleaseMutex(Hardware->os, Hardware->powerMutex));
+
+    /* Success. */
+    gcmkFOOTER_NO();
+    return gcvSTATUS_OK;
+}
+
+/*******************************************************************************
+**
+**  gckHARDWARE_SetGpuProfiler
+**
+**  Configure GPU profiler function.
+**  Only used in driver initialization stage.
+**
+**  INPUT:
+**
+**      gckHARDWARE Harwdare
+**          Pointer to an gckHARDWARE object.
+**
+**      gctBOOL GpuProfiler
+**          GOU Profiler State.
+**
+*/
+gceSTATUS
+gckHARDWARE_SetGpuProfiler(
+    IN gckHARDWARE Hardware,
+    IN gctBOOL GpuProfiler
+    )
+{
+    gcmkHEADER_ARG("Hardware=0x%x", Hardware);
+
+    /* Verify the arguments. */
+    gcmkVERIFY_OBJECT(Hardware, gcvOBJ_HARDWARE);
+
+    if (GpuProfiler == gcvTRUE)
+    {
+        gctUINT32 data = 0;
+
+        /* Need to disable clock gating when doing profiling. */
+        gcmkVERIFY_OK(
+            gckOS_ReadRegisterEx(Hardware->os,
+                                 Hardware->core,
+                                 Hardware->powerBaseAddress +
+                                 0x00100,
+                                 &data));
+
+        data = ((((gctUINT32) (data)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 0:0) - (0 ? 0:0) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 0:0) - (0 ? 0:0) + 1))))))) << (0 ? 0:0))) | (((gctUINT32) ((gctUINT32) (0) & ((gctUINT32) ((((1 ? 0:0) - (0 ? 0:0) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 0:0) - (0 ? 0:0) + 1))))))) << (0 ? 0:0)));
+
+
+        gcmkVERIFY_OK(
+            gckOS_WriteRegisterEx(Hardware->os,
+                                  Hardware->core,
+                                  Hardware->powerBaseAddress
+                                  + 0x00100,
+                                  data));
+    }
+
+    Hardware->gpuProfiler = GpuProfiler;
+
+    /* Success. */
+    gcmkFOOTER_NO();
+    return gcvSTATUS_OK;
+}
+
+#if gcdENABLE_FSCALE_VAL_ADJUST
+gceSTATUS
+gckHARDWARE_SetFscaleValue(
+    IN gckHARDWARE Hardware,
+    IN gctUINT32   FscaleValue
+    )
+{
+    gceSTATUS status;
+    gctUINT32 clock;
+    gctBOOL acquired = gcvFALSE;
+
+    gcmkHEADER_ARG("Hardware=0x%x FscaleValue=%d", Hardware, FscaleValue);
+
+    gcmkVERIFY_ARGUMENT(FscaleValue > 0 && FscaleValue <= 64);
+
+    gcmkONERROR(
+        gckOS_AcquireMutex(Hardware->os, Hardware->powerMutex, gcvINFINITE));
+    acquired =  gcvTRUE;
+
+    Hardware->powerOnFscaleVal = FscaleValue;
+
+    if (Hardware->chipPowerState == gcvPOWER_ON)
+    {
+        gctUINT32 data;
+
+        gcmkONERROR(
+            gckOS_ReadRegisterEx(Hardware->os,
+                                 Hardware->core,
+                                 Hardware->powerBaseAddress
+                                 + 0x00104,
+                                 &data));
+
+        /* Disable all clock gating. */
+        gcmkONERROR(
+            gckOS_WriteRegisterEx(Hardware->os,
+                                  Hardware->core,
+                                  Hardware->powerBaseAddress
+                                  + 0x00104,
+                                  ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 0:0) - (0 ? 0:0) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 0:0) - (0 ? 0:0) + 1))))))) << (0 ? 0:0))) | (((gctUINT32) ((gctUINT32) (1) & ((gctUINT32) ((((1 ? 0:0) - (0 ? 0:0) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 0:0) - (0 ? 0:0) + 1))))))) << (0 ? 0:0)))
+                                  | ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 1:1) - (0 ? 1:1) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 1:1) - (0 ? 1:1) + 1))))))) << (0 ? 1:1))) | (((gctUINT32) ((gctUINT32) (1) & ((gctUINT32) ((((1 ? 1:1) - (0 ? 1:1) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 1:1) - (0 ? 1:1) + 1))))))) << (0 ? 1:1)))
+                                  | ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 2:2) - (0 ? 2:2) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 2:2) - (0 ? 2:2) + 1))))))) << (0 ? 2:2))) | (((gctUINT32) ((gctUINT32) (1) & ((gctUINT32) ((((1 ? 2:2) - (0 ? 2:2) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 2:2) - (0 ? 2:2) + 1))))))) << (0 ? 2:2)))
+                                  | ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 3:3) - (0 ? 3:3) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 3:3) - (0 ? 3:3) + 1))))))) << (0 ? 3:3))) | (((gctUINT32) ((gctUINT32) (1) & ((gctUINT32) ((((1 ? 3:3) - (0 ? 3:3) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 3:3) - (0 ? 3:3) + 1))))))) << (0 ? 3:3)))
+                                  | ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 4:4) - (0 ? 4:4) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 4:4) - (0 ? 4:4) + 1))))))) << (0 ? 4:4))) | (((gctUINT32) ((gctUINT32) (1) & ((gctUINT32) ((((1 ? 4:4) - (0 ? 4:4) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 4:4) - (0 ? 4:4) + 1))))))) << (0 ? 4:4)))
+                                  | ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 5:5) - (0 ? 5:5) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 5:5) - (0 ? 5:5) + 1))))))) << (0 ? 5:5))) | (((gctUINT32) ((gctUINT32) (1) & ((gctUINT32) ((((1 ? 5:5) - (0 ? 5:5) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 5:5) - (0 ? 5:5) + 1))))))) << (0 ? 5:5)))
+                                  | ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 6:6) - (0 ? 6:6) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 6:6) - (0 ? 6:6) + 1))))))) << (0 ? 6:6))) | (((gctUINT32) ((gctUINT32) (1) & ((gctUINT32) ((((1 ? 6:6) - (0 ? 6:6) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 6:6) - (0 ? 6:6) + 1))))))) << (0 ? 6:6)))
+                                  | ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 7:7) - (0 ? 7:7) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 7:7) - (0 ? 7:7) + 1))))))) << (0 ? 7:7))) | (((gctUINT32) ((gctUINT32) (1) & ((gctUINT32) ((((1 ? 7:7) - (0 ? 7:7) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 7:7) - (0 ? 7:7) + 1))))))) << (0 ? 7:7)))
+                                  | ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 8:8) - (0 ? 8:8) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 8:8) - (0 ? 8:8) + 1))))))) << (0 ? 8:8))) | (((gctUINT32) ((gctUINT32) (1) & ((gctUINT32) ((((1 ? 8:8) - (0 ? 8:8) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 8:8) - (0 ? 8:8) + 1))))))) << (0 ? 8:8)))
+                                  | ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 9:9) - (0 ? 9:9) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 9:9) - (0 ? 9:9) + 1))))))) << (0 ? 9:9))) | (((gctUINT32) ((gctUINT32) (1) & ((gctUINT32) ((((1 ? 9:9) - (0 ? 9:9) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 9:9) - (0 ? 9:9) + 1))))))) << (0 ? 9:9)))
+                                  | ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 11:11) - (0 ? 11:11) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 11:11) - (0 ? 11:11) + 1))))))) << (0 ? 11:11))) | (((gctUINT32) ((gctUINT32) (1) & ((gctUINT32) ((((1 ? 11:11) - (0 ? 11:11) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 11:11) - (0 ? 11:11) + 1))))))) << (0 ? 11:11)))));
+
+        clock = ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 0:0) - (0 ? 0:0) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 0:0) - (0 ? 0:0) + 1))))))) << (0 ? 0:0))) | (((gctUINT32) ((gctUINT32) (0) & ((gctUINT32) ((((1 ? 0:0) - (0 ? 0:0) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 0:0) - (0 ? 0:0) + 1))))))) << (0 ? 0:0)))
+              | ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 1:1) - (0 ? 1:1) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 1:1) - (0 ? 1:1) + 1))))))) << (0 ? 1:1))) | (((gctUINT32) ((gctUINT32) (0) & ((gctUINT32) ((((1 ? 1:1) - (0 ? 1:1) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 1:1) - (0 ? 1:1) + 1))))))) << (0 ? 1:1)))
+              | ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 8:2) - (0 ? 8:2) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 8:2) - (0 ? 8:2) + 1))))))) << (0 ? 8:2))) | (((gctUINT32) ((gctUINT32) (FscaleValue) & ((gctUINT32) ((((1 ? 8:2) - (0 ? 8:2) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 8:2) - (0 ? 8:2) + 1))))))) << (0 ? 8:2)))
+              | ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 9:9) - (0 ? 9:9) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 9:9) - (0 ? 9:9) + 1))))))) << (0 ? 9:9))) | (((gctUINT32) ((gctUINT32) (1) & ((gctUINT32) ((((1 ? 9:9) - (0 ? 9:9) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 9:9) - (0 ? 9:9) + 1))))))) << (0 ? 9:9)));
+
+        gcmkONERROR(gckOS_WriteRegisterEx(Hardware->os,
+                                          Hardware->core,
+                                          0x00000,
+                                          clock));
+
+        /* Done loading the frequency scaler. */
+        gcmkONERROR(gckOS_WriteRegisterEx(Hardware->os,
+                                          Hardware->core,
+                                          0x00000,
+                                          ((((gctUINT32) (clock)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 9:9) - (0 ? 9:9) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 9:9) - (0 ? 9:9) + 1))))))) << (0 ? 9:9))) | (((gctUINT32) ((gctUINT32) (0) & ((gctUINT32) ((((1 ? 9:9) - (0 ? 9:9) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 9:9) - (0 ? 9:9) + 1))))))) << (0 ? 9:9)))));
+
+        /* Restore all clock gating. */
+        gcmkONERROR(
+            gckOS_WriteRegisterEx(Hardware->os,
+                                  Hardware->core,
+                                  Hardware->powerBaseAddress
+                                  + 0x00104,
+                                  data));
+    }
+
+    gcmkVERIFY(gckOS_ReleaseMutex(Hardware->os, Hardware->powerMutex));
+
+    gcmkFOOTER_NO();
+    return gcvSTATUS_OK;
+
+OnError:
+    if (acquired)
+    {
+        gcmkVERIFY(gckOS_ReleaseMutex(Hardware->os, Hardware->powerMutex));
+    }
+
+    gcmkFOOTER();
+    return status;
+}
+
+gceSTATUS
+gckHARDWARE_GetFscaleValue(
+    IN gckHARDWARE Hardware,
+    IN gctUINT * FscaleValue,
+    IN gctUINT * MinFscaleValue,
+    IN gctUINT * MaxFscaleValue
+    )
+{
+    *FscaleValue = Hardware->powerOnFscaleVal;
+    *MinFscaleValue = Hardware->minFscaleValue;
+    *MaxFscaleValue = 64;
+
+    return gcvSTATUS_OK;
+}
+
+gceSTATUS
+gckHARDWARE_SetMinFscaleValue(
+    IN gckHARDWARE Hardware,
+    IN gctUINT MinFscaleValue
+    )
+{
+    if (MinFscaleValue >= 1 && MinFscaleValue <= 64)
+    {
+        Hardware->minFscaleValue = MinFscaleValue;
+    }
+
+    return gcvSTATUS_OK;
+}
+#endif
+
+#if gcdPOWEROFF_TIMEOUT
+gceSTATUS
+gckHARDWARE_SetPowerOffTimeout(
+    IN gckHARDWARE  Hardware,
+    IN gctUINT32    Timeout
+)
+{
+    gcmkHEADER_ARG("Hardware=0x%x Timeout=%d", Hardware, Timeout);
+
+    Hardware->powerOffTimeout = Timeout;
+
+    gcmkFOOTER_NO();
+    return gcvSTATUS_OK;
+}
+
+
+gceSTATUS
+gckHARDWARE_QueryPowerOffTimeout(
+    IN gckHARDWARE  Hardware,
+    OUT gctUINT32*  Timeout
+)
+{
+    gcmkHEADER_ARG("Hardware=0x%x", Hardware);
+
+    *Timeout = Hardware->powerOffTimeout;
+
+    gcmkFOOTER_ARG("*Timeout=%d", *Timeout);
+    return gcvSTATUS_OK;
+}
+#endif
+
+gceSTATUS
+gckHARDWARE_QueryIdle(
+    IN gckHARDWARE Hardware,
+    OUT gctBOOL_PTR IsIdle
+    )
+{
+    gceSTATUS status;
+    gctUINT32 idle, address;
+    gctBOOL   isIdle;
+
+#if gcdINTERRUPT_STATISTIC
+    gctINT32 pendingInterrupt;
+#endif
+
+    gcmkHEADER_ARG("Hardware=0x%x", Hardware);
+
+    /* Verify the arguments. */
+    gcmkVERIFY_OBJECT(Hardware, gcvOBJ_HARDWARE);
+    gcmkVERIFY_ARGUMENT(IsIdle != gcvNULL);
+
+    /* We are idle when the power is not ON. */
+    if (Hardware->chipPowerState != gcvPOWER_ON)
+    {
+        isIdle = gcvTRUE;
+    }
+
+    else
+    {
+        /* Read idle register. */
+        gcmkONERROR(
+            gckOS_ReadRegisterEx(Hardware->os, Hardware->core, 0x00004, &idle));
+
+
+        /* Pipe must be idle. */
+        if (((((((gctUINT32) (idle)) >> (0 ? 1:1)) & ((gctUINT32) ((((1 ? 1:1) - (0 ? 1:1) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 1:1) - (0 ? 1:1) + 1)))))) ) != 1)
+        ||  ((((((gctUINT32) (idle)) >> (0 ? 3:3)) & ((gctUINT32) ((((1 ? 3:3) - (0 ? 3:3) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 3:3) - (0 ? 3:3) + 1)))))) ) != 1)
+        ||  ((((((gctUINT32) (idle)) >> (0 ? 4:4)) & ((gctUINT32) ((((1 ? 4:4) - (0 ? 4:4) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 4:4) - (0 ? 4:4) + 1)))))) ) != 1)
+        ||  ((((((gctUINT32) (idle)) >> (0 ? 5:5)) & ((gctUINT32) ((((1 ? 5:5) - (0 ? 5:5) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 5:5) - (0 ? 5:5) + 1)))))) ) != 1)
+        ||  ((((((gctUINT32) (idle)) >> (0 ? 6:6)) & ((gctUINT32) ((((1 ? 6:6) - (0 ? 6:6) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 6:6) - (0 ? 6:6) + 1)))))) ) != 1)
+        ||  ((((((gctUINT32) (idle)) >> (0 ? 7:7)) & ((gctUINT32) ((((1 ? 7:7) - (0 ? 7:7) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 7:7) - (0 ? 7:7) + 1)))))) ) != 1)
+        ||  ((((((gctUINT32) (idle)) >> (0 ? 2:2)) & ((gctUINT32) ((((1 ? 2:2) - (0 ? 2:2) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 2:2) - (0 ? 2:2) + 1)))))) ) != 1)
+        )
+        {
+            /* Something is busy. */
+            isIdle = gcvFALSE;
+        }
+
+        else
+        {
+            /* Read the current FE address. */
+            gcmkONERROR(gckOS_ReadRegisterEx(Hardware->os,
+                                             Hardware->core,
+                                             0x00664,
+                                             &address));
+
+            /* Test if address is inside the last WAIT/LINK sequence. */
+            if ((address >= Hardware->lastWaitLink)
+            &&  (address <= Hardware->lastWaitLink + 16)
+            )
+            {
+                /* FE is in last WAIT/LINK and the pipe is idle. */
+                isIdle = gcvTRUE;
+            }
+            else
+            {
+                /* FE is not in WAIT/LINK yet. */
+                isIdle = gcvFALSE;
+            }
+        }
+
+
+    }
+
+#if gcdINTERRUPT_STATISTIC
+    gcmkONERROR(gckOS_AtomGet(
+        Hardware->os,
+        Hardware->kernel->eventObj->interruptCount,
+        &pendingInterrupt
+        ));
+
+    if (pendingInterrupt)
+    {
+        isIdle = gcvFALSE;
+    }
+#endif
+
+    {
+        *IsIdle = isIdle;
+    }
+
+    /* Success. */
+    gcmkFOOTER_NO();
+    return gcvSTATUS_OK;
+
+OnError:
+    /* Return the status. */
+    gcmkFOOTER();
+    return status;
+}
+
+/*******************************************************************************
+** Handy macros that will help in reading those debug registers.
+*/
+
+#define gcmkREAD_DEBUG_REGISTER(control, block, index, data) \
+    gcmkONERROR(\
+        gckOS_WriteRegisterEx(Hardware->os, \
+                              Hardware->core, \
+                              GC_DEBUG_CONTROL##control##_Address, \
+                              gcmSETFIELD(0, \
+                                          GC_DEBUG_CONTROL##control, \
+                                          block, \
+                                          index))); \
+    gcmkONERROR(\
+        gckOS_ReadRegisterEx(Hardware->os, \
+                             Hardware->core, \
+                             GC_DEBUG_SIGNALS_##block##_Address, \
+                             &profiler->data))
+
+#define gcmkREAD_DEBUG_REGISTER_N(control, block, index, data) \
+    gcmkONERROR(\
+        gckOS_WriteRegisterEx(Hardware->os, \
+                              Hardware->core, \
+                              GC_DEBUG_CONTROL##control##_Address, \
+                              gcmSETFIELD(0, \
+                                          GC_DEBUG_CONTROL##control, \
+                                          block, \
+                                          index))); \
+    gcmkONERROR(\
+        gckOS_ReadRegisterEx(Hardware->os, \
+                             Hardware->core, \
+                             GC_DEBUG_SIGNALS_##block##_Address, \
+                             &data))
+
+#define gcmkRESET_DEBUG_REGISTER(control, block, value) \
+    gcmkONERROR(\
+        gckOS_WriteRegisterEx(Hardware->os, \
+                              Hardware->core, \
+                              GC_DEBUG_CONTROL##control##_Address, \
+                              gcmSETFIELD(0, \
+                                          GC_DEBUG_CONTROL##control, \
+                                          block, \
+                                          value))); \
+    gcmkONERROR(\
+        gckOS_WriteRegisterEx(Hardware->os, \
+                              Hardware->core, \
+                              GC_DEBUG_CONTROL##control##_Address, \
+                              gcmSETFIELD(0, \
+                                          GC_DEBUG_CONTROL##control, \
+                                          block, \
+                                          0)))
+
+/*******************************************************************************
+**
+**  gckHARDWARE_ProfileEngine2D
+**
+**  Read the profile registers available in the 2D engine and sets them in the
+**  profile.  The function will also reset the pixelsRendered counter every time.
+**
+**  INPUT:
+**
+**      gckHARDWARE Hardware
+**          Pointer to an gckHARDWARE object.
+**
+**      OPTIONAL gcs2D_PROFILE_PTR Profile
+**          Pointer to a gcs2D_Profile structure.
+**
+**  OUTPUT:
+**
+**      Nothing.
+*/
+gceSTATUS
+gckHARDWARE_ProfileEngine2D(
+    IN gckHARDWARE Hardware,
+    OPTIONAL gcs2D_PROFILE_PTR Profile
+    )
+{
+    gceSTATUS status;
+    gcs2D_PROFILE_PTR profiler = Profile;
+
+    gcmkHEADER_ARG("Hardware=0x%x", Hardware);
+
+    /* Verify the arguments. */
+    gcmkVERIFY_OBJECT(Hardware, gcvOBJ_HARDWARE);
+
+    if (Profile != gcvNULL)
+    {
+        /* Read the cycle count. */
+        gcmkONERROR(
+            gckOS_ReadRegisterEx(Hardware->os,
+                                 Hardware->core,
+                                 0x00438,
+                                 &Profile->cycleCount));
+
+        /* Read pixels rendered by 2D engine. */
+        gcmkONERROR(gckOS_WriteRegisterEx(Hardware->os, Hardware->core, 0x00470,   ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 23:16) - (0 ? 23:16) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 23:16) - (0 ? 23:16) + 1))))))) << (0 ? 23:16))) | (((gctUINT32) ((gctUINT32) (11) & ((gctUINT32) ((((1 ? 23:16) - (0 ? 23:16) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 23:16) - (0 ? 23:16) + 1))))))) << (0 ? 23:16))) ));
+gcmkONERROR(gckOS_ReadRegisterEx(Hardware->os, Hardware->core, 0x00454, &profiler->pixelsRendered));
+
+        /* Reset counter. */
+        gcmkONERROR(gckOS_WriteRegisterEx(Hardware->os, Hardware->core, 0x00470,   ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 23:16) - (0 ? 23:16) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 23:16) - (0 ? 23:16) + 1))))))) << (0 ? 23:16))) | (((gctUINT32) ((gctUINT32) (15) & ((gctUINT32) ((((1 ? 23:16) - (0 ? 23:16) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 23:16) - (0 ? 23:16) + 1))))))) << (0 ? 23:16))) ));
+gcmkONERROR(gckOS_WriteRegisterEx(Hardware->os, Hardware->core, 0x00470,   ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 23:16) - (0 ? 23:16) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 23:16) - (0 ? 23:16) + 1))))))) << (0 ? 23:16))) | (((gctUINT32) ((gctUINT32) (0) & ((gctUINT32) ((((1 ? 23:16) - (0 ? 23:16) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 23:16) - (0 ? 23:16) + 1))))))) << (0 ? 23:16)))
+));
+    }
+
+    /* Success. */
+    gcmkFOOTER_NO();
+    return gcvSTATUS_OK;
+
+OnError:
+    /* Return the status. */
+    gcmkFOOTER();
+    return status;
+}
+
+#if VIVANTE_PROFILER
+gceSTATUS
+gckHARDWARE_QueryProfileRegisters(
+    IN gckHARDWARE Hardware,
+    IN gctBOOL Reset,
+    OUT gcsPROFILER_COUNTERS * Counters
+    )
+{
+    gceSTATUS status;
+    gcsPROFILER_COUNTERS * profiler = Counters;
+    gctUINT i, clock;
+    gctUINT32 colorKilled, colorDrawn, depthKilled, depthDrawn;
+    gctUINT32 totalRead, totalWrite;
+    gceCHIPMODEL chipModel;
+    gctUINT32 chipRevision;
+    gctUINT32 resetValue = 0xF;
+
+    gcmkHEADER_ARG("Hardware=0x%x Counters=0x%x", Hardware, Counters);
+
+    /* Verify the arguments. */
+    gcmkVERIFY_OBJECT(Hardware, gcvOBJ_HARDWARE);
+
+    chipModel = Hardware->identity.chipModel;
+    chipRevision = Hardware->identity.chipRevision;
+    if ((chipModel == gcv5000 && chipRevision == 0x5434) || (chipModel == gcv3000 && chipRevision == 0x5435))
+    {
+        resetValue = 0xFF;
+    }
+
+    /* Read the counters. */
+    gcmkONERROR(
+        gckOS_ReadRegisterEx(Hardware->os,
+                             Hardware->core,
+                             0x00438,
+                             &profiler->gpuCyclesCounter));
+
+    gcmkONERROR(
+        gckOS_ReadRegisterEx(Hardware->os,
+                             Hardware->core,
+                             0x00078,
+                             &profiler->gpuTotalCyclesCounter));
+
+    gcmkONERROR(
+        gckOS_ReadRegisterEx(Hardware->os,
+                             Hardware->core,
+                             0x0007C,
+                             &profiler->gpuIdleCyclesCounter));
+
+
+    /* Read clock control register. */
+    gcmkONERROR(gckOS_ReadRegisterEx(Hardware->os,
+                                     Hardware->core,
+                                     0x00000,
+                                     &clock));
+
+    profiler->gpuTotalRead64BytesPerFrame = 0;
+    profiler->gpuTotalWrite64BytesPerFrame = 0;
+    profiler->pe_pixel_count_killed_by_color_pipe = 0;
+    profiler->pe_pixel_count_killed_by_depth_pipe = 0;
+    profiler->pe_pixel_count_drawn_by_color_pipe = 0;
+    profiler->pe_pixel_count_drawn_by_depth_pipe = 0;
+
+    /* Walk through all avaiable pixel pipes. */
+    for (i = 0; i < Hardware->identity.pixelPipes; ++i)
+    {
+        /* Select proper pipe. */
+        gcmkONERROR(gckOS_WriteRegisterEx(Hardware->os,
+                                          Hardware->core,
+                                          0x00000,
+                                          ((((gctUINT32) (clock)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 23:20) - (0 ? 23:20) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 23:20) - (0 ? 23:20) + 1))))))) << (0 ? 23:20))) | (((gctUINT32) ((gctUINT32) (i) & ((gctUINT32) ((((1 ? 23:20) - (0 ? 23:20) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 23:20) - (0 ? 23:20) + 1))))))) << (0 ? 23:20)))));
+
+        /* BW */
+        gcmkONERROR(
+        gckOS_ReadRegisterEx(Hardware->os,
+                             Hardware->core,
+                             0x00040,
+                             &totalRead));
+        gcmkONERROR(
+        gckOS_ReadRegisterEx(Hardware->os,
+                             Hardware->core,
+                             0x00044,
+                             &totalWrite));
+
+        profiler->gpuTotalRead64BytesPerFrame += totalRead;
+        profiler->gpuTotalWrite64BytesPerFrame += totalWrite;
+
+        /* PE */
+        gcmkONERROR(gckOS_WriteRegisterEx(Hardware->os, Hardware->core, 0x00470, ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 23:16) - (0 ? 23:16) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 23:16) - (0 ? 23:16) + 1))))))) << (0 ? 23:16))) | (((gctUINT32) ((gctUINT32) (0) & ((gctUINT32) ((((1 ? 23:16) - (0 ? 23:16) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 23:16) - (0 ? 23:16) + 1))))))) << (0 ? 23:16)))));gcmkONERROR(gckOS_ReadRegisterEx(Hardware->os, Hardware->core, 0x00454, &colorKilled));
+        gcmkONERROR(gckOS_WriteRegisterEx(Hardware->os, Hardware->core, 0x00470, ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 23:16) - (0 ? 23:16) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 23:16) - (0 ? 23:16) + 1))))))) << (0 ? 23:16))) | (((gctUINT32) ((gctUINT32) (1) & ((gctUINT32) ((((1 ? 23:16) - (0 ? 23:16) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 23:16) - (0 ? 23:16) + 1))))))) << (0 ? 23:16)))));gcmkONERROR(gckOS_ReadRegisterEx(Hardware->os, Hardware->core, 0x00454, &depthKilled));
+        gcmkONERROR(gckOS_WriteRegisterEx(Hardware->os, Hardware->core, 0x00470, ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 23:16) - (0 ? 23:16) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 23:16) - (0 ? 23:16) + 1))))))) << (0 ? 23:16))) | (((gctUINT32) ((gctUINT32) (2) & ((gctUINT32) ((((1 ? 23:16) - (0 ? 23:16) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 23:16) - (0 ? 23:16) + 1))))))) << (0 ? 23:16)))));gcmkONERROR(gckOS_ReadRegisterEx(Hardware->os, Hardware->core, 0x00454, &colorDrawn));
+        gcmkONERROR(gckOS_WriteRegisterEx(Hardware->os, Hardware->core, 0x00470, ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 23:16) - (0 ? 23:16) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 23:16) - (0 ? 23:16) + 1))))))) << (0 ? 23:16))) | (((gctUINT32) ((gctUINT32) (3) & ((gctUINT32) ((((1 ? 23:16) - (0 ? 23:16) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 23:16) - (0 ? 23:16) + 1))))))) << (0 ? 23:16)))));gcmkONERROR(gckOS_ReadRegisterEx(Hardware->os, Hardware->core, 0x00454, &depthDrawn));
+
+        profiler->pe_pixel_count_killed_by_color_pipe += colorKilled;
+        profiler->pe_pixel_count_killed_by_depth_pipe += depthKilled;
+        profiler->pe_pixel_count_drawn_by_color_pipe += colorDrawn;
+        profiler->pe_pixel_count_drawn_by_depth_pipe += depthDrawn;
+    }
+
+    /* Reset clock control register. */
+    gcmkONERROR(gckOS_WriteRegisterEx(Hardware->os,
+                                      Hardware->core,
+                                      0x00000,
+                                      clock));
+
+    /* Reset counters. */
+    gcmkONERROR(
+        gckOS_WriteRegisterEx(Hardware->os, Hardware->core, 0x0003C, 1));
+    gcmkONERROR(
+        gckOS_WriteRegisterEx(Hardware->os, Hardware->core, 0x0003C, 0));
+    gcmkONERROR(
+        gckOS_WriteRegisterEx(Hardware->os, Hardware->core, 0x00438, 0));
+    gcmkONERROR(
+        gckOS_WriteRegisterEx(Hardware->os, Hardware->core, 0x00078, 0));
+    gcmkONERROR(gckOS_WriteRegisterEx(Hardware->os, Hardware->core, 0x00470,   ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 23:16) - (0 ? 23:16) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 23:16) - (0 ? 23:16) + 1))))))) << (0 ? 23:16))) | (((gctUINT32) ((gctUINT32) (resetValue) & ((gctUINT32) ((((1 ? 23:16) - (0 ? 23:16) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 23:16) - (0 ? 23:16) + 1))))))) << (0 ? 23:16))) ));
+gcmkONERROR(gckOS_WriteRegisterEx(Hardware->os, Hardware->core, 0x00470,   ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 23:16) - (0 ? 23:16) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 23:16) - (0 ? 23:16) + 1))))))) << (0 ? 23:16))) | (((gctUINT32) ((gctUINT32) (0) & ((gctUINT32) ((((1 ? 23:16) - (0 ? 23:16) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 23:16) - (0 ? 23:16) + 1))))))) << (0 ? 23:16)))
+));
+
+    /* SH */
+    gcmkONERROR(gckOS_WriteRegisterEx(Hardware->os, Hardware->core, 0x00470,   ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 31:24) - (0 ? 31:24) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 31:24) - (0 ? 31:24) + 1))))))) << (0 ? 31:24))) | (((gctUINT32) ((gctUINT32) (7) & ((gctUINT32) ((((1 ? 31:24) - (0 ? 31:24) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 31:24) - (0 ? 31:24) + 1))))))) << (0 ? 31:24))) ));
+gcmkONERROR(gckOS_ReadRegisterEx(Hardware->os, Hardware->core, 0x0045C, &profiler->ps_inst_counter));
+    gcmkONERROR(gckOS_WriteRegisterEx(Hardware->os, Hardware->core, 0x00470,   ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 31:24) - (0 ? 31:24) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 31:24) - (0 ? 31:24) + 1))))))) << (0 ? 31:24))) | (((gctUINT32) ((gctUINT32) (8) & ((gctUINT32) ((((1 ? 31:24) - (0 ? 31:24) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 31:24) - (0 ? 31:24) + 1))))))) << (0 ? 31:24))) ));
+gcmkONERROR(gckOS_ReadRegisterEx(Hardware->os, Hardware->core, 0x0045C, &profiler->rendered_pixel_counter));
+    gcmkONERROR(gckOS_WriteRegisterEx(Hardware->os, Hardware->core, 0x00470,   ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 31:24) - (0 ? 31:24) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 31:24) - (0 ? 31:24) + 1))))))) << (0 ? 31:24))) | (((gctUINT32) ((gctUINT32) (9) & ((gctUINT32) ((((1 ? 31:24) - (0 ? 31:24) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 31:24) - (0 ? 31:24) + 1))))))) << (0 ? 31:24))) ));
+gcmkONERROR(gckOS_ReadRegisterEx(Hardware->os, Hardware->core, 0x0045C, &profiler->vs_inst_counter));
+    gcmkONERROR(gckOS_WriteRegisterEx(Hardware->os, Hardware->core, 0x00470,   ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 31:24) - (0 ? 31:24) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 31:24) - (0 ? 31:24) + 1))))))) << (0 ? 31:24))) | (((gctUINT32) ((gctUINT32) (10) & ((gctUINT32) ((((1 ? 31:24) - (0 ? 31:24) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 31:24) - (0 ? 31:24) + 1))))))) << (0 ? 31:24))) ));
+gcmkONERROR(gckOS_ReadRegisterEx(Hardware->os, Hardware->core, 0x0045C, &profiler->rendered_vertice_counter));
+    gcmkONERROR(gckOS_WriteRegisterEx(Hardware->os, Hardware->core, 0x00470,   ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 31:24) - (0 ? 31:24) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 31:24) - (0 ? 31:24) + 1))))))) << (0 ? 31:24))) | (((gctUINT32) ((gctUINT32) (11) & ((gctUINT32) ((((1 ? 31:24) - (0 ? 31:24) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 31:24) - (0 ? 31:24) + 1))))))) << (0 ? 31:24))) ));
+gcmkONERROR(gckOS_ReadRegisterEx(Hardware->os, Hardware->core, 0x0045C, &profiler->vtx_branch_inst_counter));
+    gcmkONERROR(gckOS_WriteRegisterEx(Hardware->os, Hardware->core, 0x00470,   ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 31:24) - (0 ? 31:24) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 31:24) - (0 ? 31:24) + 1))))))) << (0 ? 31:24))) | (((gctUINT32) ((gctUINT32) (12) & ((gctUINT32) ((((1 ? 31:24) - (0 ? 31:24) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 31:24) - (0 ? 31:24) + 1))))))) << (0 ? 31:24))) ));
+gcmkONERROR(gckOS_ReadRegisterEx(Hardware->os, Hardware->core, 0x0045C, &profiler->vtx_texld_inst_counter));
+    gcmkONERROR(gckOS_WriteRegisterEx(Hardware->os, Hardware->core, 0x00470,   ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 31:24) - (0 ? 31:24) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 31:24) - (0 ? 31:24) + 1))))))) << (0 ? 31:24))) | (((gctUINT32) ((gctUINT32) (13) & ((gctUINT32) ((((1 ? 31:24) - (0 ? 31:24) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 31:24) - (0 ? 31:24) + 1))))))) << (0 ? 31:24))) ));
+gcmkONERROR(gckOS_ReadRegisterEx(Hardware->os, Hardware->core, 0x0045C, &profiler->pxl_branch_inst_counter));
+    gcmkONERROR(gckOS_WriteRegisterEx(Hardware->os, Hardware->core, 0x00470,   ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 31:24) - (0 ? 31:24) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 31:24) - (0 ? 31:24) + 1))))))) << (0 ? 31:24))) | (((gctUINT32) ((gctUINT32) (14) & ((gctUINT32) ((((1 ? 31:24) - (0 ? 31:24) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 31:24) - (0 ? 31:24) + 1))))))) << (0 ? 31:24))) ));
+gcmkONERROR(gckOS_ReadRegisterEx(Hardware->os, Hardware->core, 0x0045C, &profiler->pxl_texld_inst_counter));
+    gcmkONERROR(gckOS_WriteRegisterEx(Hardware->os, Hardware->core, 0x00470,   ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 31:24) - (0 ? 31:24) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 31:24) - (0 ? 31:24) + 1))))))) << (0 ? 31:24))) | (((gctUINT32) ((gctUINT32) (resetValue) & ((gctUINT32) ((((1 ? 31:24) - (0 ? 31:24) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 31:24) - (0 ? 31:24) + 1))))))) << (0 ? 31:24))) ));
+gcmkONERROR(gckOS_WriteRegisterEx(Hardware->os, Hardware->core, 0x00470,   ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 31:24) - (0 ? 31:24) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 31:24) - (0 ? 31:24) + 1))))))) << (0 ? 31:24))) | (((gctUINT32) ((gctUINT32) (0) & ((gctUINT32) ((((1 ? 31:24) - (0 ? 31:24) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 31:24) - (0 ? 31:24) + 1))))))) << (0 ? 31:24)))
+));
+
+    /* PA */
+    gcmkONERROR(gckOS_WriteRegisterEx(Hardware->os, Hardware->core, 0x00474,   ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 7:0) - (0 ? 7:0) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 7:0) - (0 ? 7:0) + 1))))))) << (0 ? 7:0))) | (((gctUINT32) ((gctUINT32) (3) & ((gctUINT32) ((((1 ? 7:0) - (0 ? 7:0) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 7:0) - (0 ? 7:0) + 1))))))) << (0 ? 7:0))) ));
+gcmkONERROR(gckOS_ReadRegisterEx(Hardware->os, Hardware->core, 0x00460, &profiler->pa_input_vtx_counter));
+    gcmkONERROR(gckOS_WriteRegisterEx(Hardware->os, Hardware->core, 0x00474,   ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 7:0) - (0 ? 7:0) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 7:0) - (0 ? 7:0) + 1))))))) << (0 ? 7:0))) | (((gctUINT32) ((gctUINT32) (4) & ((gctUINT32) ((((1 ? 7:0) - (0 ? 7:0) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 7:0) - (0 ? 7:0) + 1))))))) << (0 ? 7:0))) ));
+gcmkONERROR(gckOS_ReadRegisterEx(Hardware->os, Hardware->core, 0x00460, &profiler->pa_input_prim_counter));
+    gcmkONERROR(gckOS_WriteRegisterEx(Hardware->os, Hardware->core, 0x00474,   ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 7:0) - (0 ? 7:0) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 7:0) - (0 ? 7:0) + 1))))))) << (0 ? 7:0))) | (((gctUINT32) ((gctUINT32) (5) & ((gctUINT32) ((((1 ? 7:0) - (0 ? 7:0) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 7:0) - (0 ? 7:0) + 1))))))) << (0 ? 7:0))) ));
+gcmkONERROR(gckOS_ReadRegisterEx(Hardware->os, Hardware->core, 0x00460, &profiler->pa_output_prim_counter));
+    gcmkONERROR(gckOS_WriteRegisterEx(Hardware->os, Hardware->core, 0x00474,   ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 7:0) - (0 ? 7:0) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 7:0) - (0 ? 7:0) + 1))))))) << (0 ? 7:0))) | (((gctUINT32) ((gctUINT32) (6) & ((gctUINT32) ((((1 ? 7:0) - (0 ? 7:0) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 7:0) - (0 ? 7:0) + 1))))))) << (0 ? 7:0))) ));
+gcmkONERROR(gckOS_ReadRegisterEx(Hardware->os, Hardware->core, 0x00460, &profiler->pa_depth_clipped_counter));
+    gcmkONERROR(gckOS_WriteRegisterEx(Hardware->os, Hardware->core, 0x00474,   ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 7:0) - (0 ? 7:0) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 7:0) - (0 ? 7:0) + 1))))))) << (0 ? 7:0))) | (((gctUINT32) ((gctUINT32) (7) & ((gctUINT32) ((((1 ? 7:0) - (0 ? 7:0) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 7:0) - (0 ? 7:0) + 1))))))) << (0 ? 7:0))) ));
+gcmkONERROR(gckOS_ReadRegisterEx(Hardware->os, Hardware->core, 0x00460, &profiler->pa_trivial_rejected_counter));
+    gcmkONERROR(gckOS_WriteRegisterEx(Hardware->os, Hardware->core, 0x00474,   ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 7:0) - (0 ? 7:0) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 7:0) - (0 ? 7:0) + 1))))))) << (0 ? 7:0))) | (((gctUINT32) ((gctUINT32) (8) & ((gctUINT32) ((((1 ? 7:0) - (0 ? 7:0) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 7:0) - (0 ? 7:0) + 1))))))) << (0 ? 7:0))) ));
+gcmkONERROR(gckOS_ReadRegisterEx(Hardware->os, Hardware->core, 0x00460, &profiler->pa_culled_counter));
+    gcmkONERROR(gckOS_WriteRegisterEx(Hardware->os, Hardware->core, 0x00474,   ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 7:0) - (0 ? 7:0) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 7:0) - (0 ? 7:0) + 1))))))) << (0 ? 7:0))) | (((gctUINT32) ((gctUINT32) (resetValue) & ((gctUINT32) ((((1 ? 7:0) - (0 ? 7:0) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 7:0) - (0 ? 7:0) + 1))))))) << (0 ? 7:0))) ));
+gcmkONERROR(gckOS_WriteRegisterEx(Hardware->os, Hardware->core, 0x00474,   ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 7:0) - (0 ? 7:0) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 7:0) - (0 ? 7:0) + 1))))))) << (0 ? 7:0))) | (((gctUINT32) ((gctUINT32) (0) & ((gctUINT32) ((((1 ? 7:0) - (0 ? 7:0) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 7:0) - (0 ? 7:0) + 1))))))) << (0 ? 7:0)))
+));
+
+    /* SE */
+    gcmkONERROR(gckOS_WriteRegisterEx(Hardware->os, Hardware->core, 0x00474,   ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 15:8) - (0 ? 15:8) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 15:8) - (0 ? 15:8) + 1))))))) << (0 ? 15:8))) | (((gctUINT32) ((gctUINT32) (0) & ((gctUINT32) ((((1 ? 15:8) - (0 ? 15:8) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 15:8) - (0 ? 15:8) + 1))))))) << (0 ? 15:8))) ));
+gcmkONERROR(gckOS_ReadRegisterEx(Hardware->os, Hardware->core, 0x00464, &profiler->se_culled_triangle_count));
+    gcmkONERROR(gckOS_WriteRegisterEx(Hardware->os, Hardware->core, 0x00474,   ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 15:8) - (0 ? 15:8) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 15:8) - (0 ? 15:8) + 1))))))) << (0 ? 15:8))) | (((gctUINT32) ((gctUINT32) (1) & ((gctUINT32) ((((1 ? 15:8) - (0 ? 15:8) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 15:8) - (0 ? 15:8) + 1))))))) << (0 ? 15:8))) ));
+gcmkONERROR(gckOS_ReadRegisterEx(Hardware->os, Hardware->core, 0x00464, &profiler->se_culled_lines_count));
+    gcmkONERROR(gckOS_WriteRegisterEx(Hardware->os, Hardware->core, 0x00474,   ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 15:8) - (0 ? 15:8) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 15:8) - (0 ? 15:8) + 1))))))) << (0 ? 15:8))) | (((gctUINT32) ((gctUINT32) (resetValue) & ((gctUINT32) ((((1 ? 15:8) - (0 ? 15:8) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 15:8) - (0 ? 15:8) + 1))))))) << (0 ? 15:8))) ));
+gcmkONERROR(gckOS_WriteRegisterEx(Hardware->os, Hardware->core, 0x00474,   ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 15:8) - (0 ? 15:8) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 15:8) - (0 ? 15:8) + 1))))))) << (0 ? 15:8))) | (((gctUINT32) ((gctUINT32) (0) & ((gctUINT32) ((((1 ? 15:8) - (0 ? 15:8) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 15:8) - (0 ? 15:8) + 1))))))) << (0 ? 15:8)))
+));
+
+    /* RA */
+    gcmkONERROR(gckOS_WriteRegisterEx(Hardware->os, Hardware->core, 0x00474,   ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 23:16) - (0 ? 23:16) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 23:16) - (0 ? 23:16) + 1))))))) << (0 ? 23:16))) | (((gctUINT32) ((gctUINT32) (0) & ((gctUINT32) ((((1 ? 23:16) - (0 ? 23:16) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 23:16) - (0 ? 23:16) + 1))))))) << (0 ? 23:16))) ));
+gcmkONERROR(gckOS_ReadRegisterEx(Hardware->os, Hardware->core, 0x00448, &profiler->ra_valid_pixel_count));
+    gcmkONERROR(gckOS_WriteRegisterEx(Hardware->os, Hardware->core, 0x00474,   ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 23:16) - (0 ? 23:16) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 23:16) - (0 ? 23:16) + 1))))))) << (0 ? 23:16))) | (((gctUINT32) ((gctUINT32) (1) & ((gctUINT32) ((((1 ? 23:16) - (0 ? 23:16) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 23:16) - (0 ? 23:16) + 1))))))) << (0 ? 23:16))) ));
+gcmkONERROR(gckOS_ReadRegisterEx(Hardware->os, Hardware->core, 0x00448, &profiler->ra_total_quad_count));
+    gcmkONERROR(gckOS_WriteRegisterEx(Hardware->os, Hardware->core, 0x00474,   ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 23:16) - (0 ? 23:16) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 23:16) - (0 ? 23:16) + 1))))))) << (0 ? 23:16))) | (((gctUINT32) ((gctUINT32) (2) & ((gctUINT32) ((((1 ? 23:16) - (0 ? 23:16) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 23:16) - (0 ? 23:16) + 1))))))) << (0 ? 23:16))) ));
+gcmkONERROR(gckOS_ReadRegisterEx(Hardware->os, Hardware->core, 0x00448, &profiler->ra_valid_quad_count_after_early_z));
+    gcmkONERROR(gckOS_WriteRegisterEx(Hardware->os, Hardware->core, 0x00474,   ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 23:16) - (0 ? 23:16) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 23:16) - (0 ? 23:16) + 1))))))) << (0 ? 23:16))) | (((gctUINT32) ((gctUINT32) (3) & ((gctUINT32) ((((1 ? 23:16) - (0 ? 23:16) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 23:16) - (0 ? 23:16) + 1))))))) << (0 ? 23:16))) ));
+gcmkONERROR(gckOS_ReadRegisterEx(Hardware->os, Hardware->core, 0x00448, &profiler->ra_total_primitive_count));
+    gcmkONERROR(gckOS_WriteRegisterEx(Hardware->os, Hardware->core, 0x00474,   ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 23:16) - (0 ? 23:16) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 23:16) - (0 ? 23:16) + 1))))))) << (0 ? 23:16))) | (((gctUINT32) ((gctUINT32) (9) & ((gctUINT32) ((((1 ? 23:16) - (0 ? 23:16) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 23:16) - (0 ? 23:16) + 1))))))) << (0 ? 23:16))) ));
+gcmkONERROR(gckOS_ReadRegisterEx(Hardware->os, Hardware->core, 0x00448, &profiler->ra_pipe_cache_miss_counter));
+    gcmkONERROR(gckOS_WriteRegisterEx(Hardware->os, Hardware->core, 0x00474,   ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 23:16) - (0 ? 23:16) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 23:16) - (0 ? 23:16) + 1))))))) << (0 ? 23:16))) | (((gctUINT32) ((gctUINT32) (10) & ((gctUINT32) ((((1 ? 23:16) - (0 ? 23:16) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 23:16) - (0 ? 23:16) + 1))))))) << (0 ? 23:16))) ));
+gcmkONERROR(gckOS_ReadRegisterEx(Hardware->os, Hardware->core, 0x00448, &profiler->ra_prefetch_cache_miss_counter));
+    gcmkONERROR(gckOS_WriteRegisterEx(Hardware->os, Hardware->core, 0x00474,   ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 23:16) - (0 ? 23:16) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 23:16) - (0 ? 23:16) + 1))))))) << (0 ? 23:16))) | (((gctUINT32) ((gctUINT32) (resetValue) & ((gctUINT32) ((((1 ? 23:16) - (0 ? 23:16) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 23:16) - (0 ? 23:16) + 1))))))) << (0 ? 23:16))) ));
+gcmkONERROR(gckOS_WriteRegisterEx(Hardware->os, Hardware->core, 0x00474,   ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 23:16) - (0 ? 23:16) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 23:16) - (0 ? 23:16) + 1))))))) << (0 ? 23:16))) | (((gctUINT32) ((gctUINT32) (0) & ((gctUINT32) ((((1 ? 23:16) - (0 ? 23:16) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 23:16) - (0 ? 23:16) + 1))))))) << (0 ? 23:16)))
+));
+
+    /* TX */
+    gcmkONERROR(gckOS_WriteRegisterEx(Hardware->os, Hardware->core, 0x00474,   ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 31:24) - (0 ? 31:24) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 31:24) - (0 ? 31:24) + 1))))))) << (0 ? 31:24))) | (((gctUINT32) ((gctUINT32) (0) & ((gctUINT32) ((((1 ? 31:24) - (0 ? 31:24) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 31:24) - (0 ? 31:24) + 1))))))) << (0 ? 31:24))) ));
+gcmkONERROR(gckOS_ReadRegisterEx(Hardware->os, Hardware->core, 0x0044C, &profiler->tx_total_bilinear_requests));
+    gcmkONERROR(gckOS_WriteRegisterEx(Hardware->os, Hardware->core, 0x00474,   ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 31:24) - (0 ? 31:24) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 31:24) - (0 ? 31:24) + 1))))))) << (0 ? 31:24))) | (((gctUINT32) ((gctUINT32) (1) & ((gctUINT32) ((((1 ? 31:24) - (0 ? 31:24) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 31:24) - (0 ? 31:24) + 1))))))) << (0 ? 31:24))) ));
+gcmkONERROR(gckOS_ReadRegisterEx(Hardware->os, Hardware->core, 0x0044C, &profiler->tx_total_trilinear_requests));
+    gcmkONERROR(gckOS_WriteRegisterEx(Hardware->os, Hardware->core, 0x00474,   ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 31:24) - (0 ? 31:24) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 31:24) - (0 ? 31:24) + 1))))))) << (0 ? 31:24))) | (((gctUINT32) ((gctUINT32) (2) & ((gctUINT32) ((((1 ? 31:24) - (0 ? 31:24) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 31:24) - (0 ? 31:24) + 1))))))) << (0 ? 31:24))) ));
+gcmkONERROR(gckOS_ReadRegisterEx(Hardware->os, Hardware->core, 0x0044C, &profiler->tx_total_discarded_texture_requests));
+    gcmkONERROR(gckOS_WriteRegisterEx(Hardware->os, Hardware->core, 0x00474,   ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 31:24) - (0 ? 31:24) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 31:24) - (0 ? 31:24) + 1))))))) << (0 ? 31:24))) | (((gctUINT32) ((gctUINT32) (3) & ((gctUINT32) ((((1 ? 31:24) - (0 ? 31:24) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 31:24) - (0 ? 31:24) + 1))))))) << (0 ? 31:24))) ));
+gcmkONERROR(gckOS_ReadRegisterEx(Hardware->os, Hardware->core, 0x0044C, &profiler->tx_total_texture_requests));
+    gcmkONERROR(gckOS_WriteRegisterEx(Hardware->os, Hardware->core, 0x00474,   ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 31:24) - (0 ? 31:24) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 31:24) - (0 ? 31:24) + 1))))))) << (0 ? 31:24))) | (((gctUINT32) ((gctUINT32) (5) & ((gctUINT32) ((((1 ? 31:24) - (0 ? 31:24) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 31:24) - (0 ? 31:24) + 1))))))) << (0 ? 31:24))) ));
+gcmkONERROR(gckOS_ReadRegisterEx(Hardware->os, Hardware->core, 0x0044C, &profiler->tx_mem_read_count));
+    gcmkONERROR(gckOS_WriteRegisterEx(Hardware->os, Hardware->core, 0x00474,   ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 31:24) - (0 ? 31:24) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 31:24) - (0 ? 31:24) + 1))))))) << (0 ? 31:24))) | (((gctUINT32) ((gctUINT32) (6) & ((gctUINT32) ((((1 ? 31:24) - (0 ? 31:24) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 31:24) - (0 ? 31:24) + 1))))))) << (0 ? 31:24))) ));
+gcmkONERROR(gckOS_ReadRegisterEx(Hardware->os, Hardware->core, 0x0044C, &profiler->tx_mem_read_in_8B_count));
+    gcmkONERROR(gckOS_WriteRegisterEx(Hardware->os, Hardware->core, 0x00474,   ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 31:24) - (0 ? 31:24) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 31:24) - (0 ? 31:24) + 1))))))) << (0 ? 31:24))) | (((gctUINT32) ((gctUINT32) (7) & ((gctUINT32) ((((1 ? 31:24) - (0 ? 31:24) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 31:24) - (0 ? 31:24) + 1))))))) << (0 ? 31:24))) ));
+gcmkONERROR(gckOS_ReadRegisterEx(Hardware->os, Hardware->core, 0x0044C, &profiler->tx_cache_miss_count));
+    gcmkONERROR(gckOS_WriteRegisterEx(Hardware->os, Hardware->core, 0x00474,   ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 31:24) - (0 ? 31:24) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 31:24) - (0 ? 31:24) + 1))))))) << (0 ? 31:24))) | (((gctUINT32) ((gctUINT32) (8) & ((gctUINT32) ((((1 ? 31:24) - (0 ? 31:24) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 31:24) - (0 ? 31:24) + 1))))))) << (0 ? 31:24))) ));
+gcmkONERROR(gckOS_ReadRegisterEx(Hardware->os, Hardware->core, 0x0044C, &profiler->tx_cache_hit_texel_count));
+    gcmkONERROR(gckOS_WriteRegisterEx(Hardware->os, Hardware->core, 0x00474,   ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 31:24) - (0 ? 31:24) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 31:24) - (0 ? 31:24) + 1))))))) << (0 ? 31:24))) | (((gctUINT32) ((gctUINT32) (9) & ((gctUINT32) ((((1 ? 31:24) - (0 ? 31:24) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 31:24) - (0 ? 31:24) + 1))))))) << (0 ? 31:24))) ));
+gcmkONERROR(gckOS_ReadRegisterEx(Hardware->os, Hardware->core, 0x0044C, &profiler->tx_cache_miss_texel_count));
+    gcmkONERROR(gckOS_WriteRegisterEx(Hardware->os, Hardware->core, 0x00474,   ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 31:24) - (0 ? 31:24) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 31:24) - (0 ? 31:24) + 1))))))) << (0 ? 31:24))) | (((gctUINT32) ((gctUINT32) (resetValue) & ((gctUINT32) ((((1 ? 31:24) - (0 ? 31:24) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 31:24) - (0 ? 31:24) + 1))))))) << (0 ? 31:24))) ));
+gcmkONERROR(gckOS_WriteRegisterEx(Hardware->os, Hardware->core, 0x00474,   ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 31:24) - (0 ? 31:24) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 31:24) - (0 ? 31:24) + 1))))))) << (0 ? 31:24))) | (((gctUINT32) ((gctUINT32) (0) & ((gctUINT32) ((((1 ? 31:24) - (0 ? 31:24) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 31:24) - (0 ? 31:24) + 1))))))) << (0 ? 31:24)))
+));
+
+    /* MC */
+    gcmkONERROR(gckOS_WriteRegisterEx(Hardware->os, Hardware->core, 0x00478,   ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 7:0) - (0 ? 7:0) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 7:0) - (0 ? 7:0) + 1))))))) << (0 ? 7:0))) | (((gctUINT32) ((gctUINT32) (1) & ((gctUINT32) ((((1 ? 7:0) - (0 ? 7:0) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 7:0) - (0 ? 7:0) + 1))))))) << (0 ? 7:0))) ));
+gcmkONERROR(gckOS_ReadRegisterEx(Hardware->os, Hardware->core, 0x00468, &profiler->mc_total_read_req_8B_from_pipeline));
+    gcmkONERROR(gckOS_WriteRegisterEx(Hardware->os, Hardware->core, 0x00478,   ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 7:0) - (0 ? 7:0) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 7:0) - (0 ? 7:0) + 1))))))) << (0 ? 7:0))) | (((gctUINT32) ((gctUINT32) (2) & ((gctUINT32) ((((1 ? 7:0) - (0 ? 7:0) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 7:0) - (0 ? 7:0) + 1))))))) << (0 ? 7:0))) ));
+gcmkONERROR(gckOS_ReadRegisterEx(Hardware->os, Hardware->core, 0x00468, &profiler->mc_total_read_req_8B_from_IP));
+    gcmkONERROR(gckOS_WriteRegisterEx(Hardware->os, Hardware->core, 0x00478,   ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 7:0) - (0 ? 7:0) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 7:0) - (0 ? 7:0) + 1))))))) << (0 ? 7:0))) | (((gctUINT32) ((gctUINT32) (3) & ((gctUINT32) ((((1 ? 7:0) - (0 ? 7:0) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 7:0) - (0 ? 7:0) + 1))))))) << (0 ? 7:0))) ));
+gcmkONERROR(gckOS_ReadRegisterEx(Hardware->os, Hardware->core, 0x00468, &profiler->mc_total_write_req_8B_from_pipeline));
+    gcmkONERROR(gckOS_WriteRegisterEx(Hardware->os, Hardware->core, 0x00478,   ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 7:0) - (0 ? 7:0) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 7:0) - (0 ? 7:0) + 1))))))) << (0 ? 7:0))) | (((gctUINT32) ((gctUINT32) (resetValue) & ((gctUINT32) ((((1 ? 7:0) - (0 ? 7:0) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 7:0) - (0 ? 7:0) + 1))))))) << (0 ? 7:0))) ));
+gcmkONERROR(gckOS_WriteRegisterEx(Hardware->os, Hardware->core, 0x00478,   ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 7:0) - (0 ? 7:0) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 7:0) - (0 ? 7:0) + 1))))))) << (0 ? 7:0))) | (((gctUINT32) ((gctUINT32) (0) & ((gctUINT32) ((((1 ? 7:0) - (0 ? 7:0) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 7:0) - (0 ? 7:0) + 1))))))) << (0 ? 7:0)))
+));
+
+    /* HI */
+    gcmkONERROR(gckOS_WriteRegisterEx(Hardware->os, Hardware->core, 0x00478,   ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 15:8) - (0 ? 15:8) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 15:8) - (0 ? 15:8) + 1))))))) << (0 ? 15:8))) | (((gctUINT32) ((gctUINT32) (0) & ((gctUINT32) ((((1 ? 15:8) - (0 ? 15:8) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 15:8) - (0 ? 15:8) + 1))))))) << (0 ? 15:8))) ));
+gcmkONERROR(gckOS_ReadRegisterEx(Hardware->os, Hardware->core, 0x0046C, &profiler->hi_axi_cycles_read_request_stalled));
+    gcmkONERROR(gckOS_WriteRegisterEx(Hardware->os, Hardware->core, 0x00478,   ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 15:8) - (0 ? 15:8) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 15:8) - (0 ? 15:8) + 1))))))) << (0 ? 15:8))) | (((gctUINT32) ((gctUINT32) (1) & ((gctUINT32) ((((1 ? 15:8) - (0 ? 15:8) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 15:8) - (0 ? 15:8) + 1))))))) << (0 ? 15:8))) ));
+gcmkONERROR(gckOS_ReadRegisterEx(Hardware->os, Hardware->core, 0x0046C, &profiler->hi_axi_cycles_write_request_stalled));
+    gcmkONERROR(gckOS_WriteRegisterEx(Hardware->os, Hardware->core, 0x00478,   ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 15:8) - (0 ? 15:8) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 15:8) - (0 ? 15:8) + 1))))))) << (0 ? 15:8))) | (((gctUINT32) ((gctUINT32) (2) & ((gctUINT32) ((((1 ? 15:8) - (0 ? 15:8) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 15:8) - (0 ? 15:8) + 1))))))) << (0 ? 15:8))) ));
+gcmkONERROR(gckOS_ReadRegisterEx(Hardware->os, Hardware->core, 0x0046C, &profiler->hi_axi_cycles_write_data_stalled));
+    gcmkONERROR(gckOS_WriteRegisterEx(Hardware->os, Hardware->core, 0x00478,   ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 15:8) - (0 ? 15:8) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 15:8) - (0 ? 15:8) + 1))))))) << (0 ? 15:8))) | (((gctUINT32) ((gctUINT32) (resetValue) & ((gctUINT32) ((((1 ? 15:8) - (0 ? 15:8) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 15:8) - (0 ? 15:8) + 1))))))) << (0 ? 15:8))) ));
+gcmkONERROR(gckOS_WriteRegisterEx(Hardware->os, Hardware->core, 0x00478,   ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 15:8) - (0 ? 15:8) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 15:8) - (0 ? 15:8) + 1))))))) << (0 ? 15:8))) | (((gctUINT32) ((gctUINT32) (0) & ((gctUINT32) ((((1 ? 15:8) - (0 ? 15:8) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 15:8) - (0 ? 15:8) + 1))))))) << (0 ? 15:8)))
+));
+
+    /* Success. */
+    gcmkFOOTER_NO();
+    return gcvSTATUS_OK;
+
+OnError:
+    /* Return the status. */
+    gcmkFOOTER();
+    return status;
+}
+#endif
+
+
+#if VIVANTE_PROFILER_CONTEXT
+#define gcmkUPDATE_PROFILE_DATA(data) \
+    profilerHistroy->data += profiler->data
+
+gceSTATUS
+gckHARDWARE_QueryContextProfile(
+    IN gckHARDWARE Hardware,
+    IN gctBOOL Reset,
+    IN gckCONTEXT Context,
+    OUT gcsPROFILER_COUNTERS * Counters
+    )
+{
+    gceSTATUS status;
+    gckCOMMAND command = Hardware->kernel->command;
+    gcsPROFILER_COUNTERS * profiler = Counters;
+
+    gcmkHEADER_ARG("Hardware=0x%x Counters=0x%x", Hardware, Counters);
+
+    /* Verify the arguments. */
+    gcmkVERIFY_OBJECT(Hardware, gcvOBJ_HARDWARE);
+
+    /* Acquire the context sequnence mutex. */
+    gcmkONERROR(gckOS_AcquireMutex(
+        command->os, command->mutexContextSeq, gcvINFINITE
+        ));
+
+    /* Read the counters. */
+    gcmkVERIFY_OK(gckOS_MemCopy(
+        profiler, &Context->histroyProfiler, gcmSIZEOF(gcsPROFILER_COUNTERS)
+        ));
+
+    /* Reset counters. */
+    gcmkVERIFY_OK(gckOS_ZeroMemory(
+        &Context->histroyProfiler, gcmSIZEOF(gcsPROFILER_COUNTERS)
+        ));
+
+    gcmkVERIFY_OK(gckOS_ReleaseMutex(
+        command->os, command->mutexContextSeq
+        ));
+
+    /* Success. */
+    gcmkFOOTER_NO();
+    return gcvSTATUS_OK;
+
+OnError:
+    /* Return the status. */
+    gcmkFOOTER();
+    return status;
+}
+
+static gctUINT32
+CalcDelta(
+    IN gctUINT32 new,
+    IN gctUINT32 old
+    )
+{
+    if (new >= old)
+    {
+        return new - old;
+    }
+    else
+    {
+        return (gctUINT32)((gctUINT64)new + 0x100000000ll - old);
+    }
+}
+
+#if USE_SW_RESET
+#define gcmkRESET_PROFILE_DATA(counterName, prevCounterName) \
+    temp = profiler->counterName; \
+    profiler->counterName = CalcDelta(temp, Context->prevCounterName); \
+    Context->prevCounterName = temp
+
+#endif
+
+gceSTATUS
+gckHARDWARE_UpdateContextProfile(
+    IN gckHARDWARE Hardware,
+    IN gckCONTEXT Context
+    )
+{
+    gceSTATUS status;
+    gcsPROFILER_COUNTERS * profiler = &Context->latestProfiler;
+    gcsPROFILER_COUNTERS * profilerHistroy = &Context->histroyProfiler;
+    gctUINT i, clock;
+    gctUINT32 colorKilled = 0, colorDrawn = 0, depthKilled = 0, depthDrawn = 0;
+    gctUINT32 totalRead, totalWrite;
+    gceCHIPMODEL chipModel;
+    gctUINT32 chipRevision;
+    gctUINT32 temp;
+    gctUINT32 resetValue = 0xF;
+
+    gcmkHEADER_ARG("Hardware=0x%x Context=0x%x", Hardware, Context);
+
+    /* Verify the arguments. */
+    gcmkVERIFY_OBJECT(Hardware, gcvOBJ_HARDWARE);
+    gcmkVERIFY_OBJECT(Context, gcvOBJ_CONTEXT);
+
+    chipModel = Hardware->identity.chipModel;
+    chipRevision = Hardware->identity.chipRevision;
+    if ((chipModel == gcv5000 && chipRevision == 0x5434) || (chipModel == gcv3000 && chipRevision == 0x5435))
+    {
+        resetValue = 0xFF;
+    }
+
+    /* Read the counters. */
+    gcmkONERROR(
+        gckOS_ReadRegisterEx(Hardware->os,
+                             Hardware->core,
+                             0x00438,
+                             &profiler->gpuCyclesCounter));
+    gcmkUPDATE_PROFILE_DATA(gpuCyclesCounter);
+
+    gcmkONERROR(
+        gckOS_ReadRegisterEx(Hardware->os,
+                             Hardware->core,
+                             0x00078,
+                             &profiler->gpuTotalCyclesCounter));
+    gcmkUPDATE_PROFILE_DATA(gpuTotalCyclesCounter);
+
+    if (chipModel == gcv2100 || chipModel == gcv2000 || chipModel == gcv880)
+    {
+        gcmkONERROR(
+            gckOS_ReadRegisterEx(Hardware->os,
+                                 Hardware->core,
+                                 0x00078,
+                                 &profiler->gpuIdleCyclesCounter));
+    }
+    else
+    {
+        gcmkONERROR(
+            gckOS_ReadRegisterEx(Hardware->os,
+                                 Hardware->core,
+                                 0x0007C,
+                                 &profiler->gpuIdleCyclesCounter));
+    }
+    gcmkUPDATE_PROFILE_DATA(gpuIdleCyclesCounter);
+
+    /* Read clock control register. */
+    gcmkONERROR(gckOS_ReadRegisterEx(Hardware->os,
+                                     Hardware->core,
+                                     0x00000,
+                                     &clock));
+
+    profiler->gpuTotalRead64BytesPerFrame = 0;
+    profiler->gpuTotalWrite64BytesPerFrame = 0;
+    profiler->pe_pixel_count_killed_by_color_pipe = 0;
+    profiler->pe_pixel_count_killed_by_depth_pipe = 0;
+    profiler->pe_pixel_count_drawn_by_color_pipe = 0;
+    profiler->pe_pixel_count_drawn_by_depth_pipe = 0;
+
+    /* Walk through all avaiable pixel pipes. */
+    for (i = 0; i < Hardware->identity.pixelPipes; ++i)
+    {
+        /* Select proper pipe. */
+        gcmkONERROR(gckOS_WriteRegisterEx(Hardware->os,
+                                           Hardware->core,
+                                           0x00000,
+                                           ((((gctUINT32) (clock)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 23:20) - (0 ? 23:20) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 23:20) - (0 ? 23:20) + 1))))))) << (0 ? 23:20))) | (((gctUINT32) ((gctUINT32) (i) & ((gctUINT32) ((((1 ? 23:20) - (0 ? 23:20) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 23:20) - (0 ? 23:20) + 1))))))) << (0 ? 23:20)))));
+
+        /* BW */
+        gcmkONERROR(
+        gckOS_ReadRegisterEx(Hardware->os,
+                             Hardware->core,
+                             0x00040,
+                             &totalRead));
+        gcmkONERROR(
+        gckOS_ReadRegisterEx(Hardware->os,
+                             Hardware->core,
+                             0x00044,
+                             &totalWrite));
+
+        profiler->gpuTotalRead64BytesPerFrame += totalRead;
+        profiler->gpuTotalWrite64BytesPerFrame += totalWrite;
+
+        /* PE */
+        gcmkONERROR(gckOS_WriteRegisterEx(Hardware->os, Hardware->core, 0x00470, ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 23:16) - (0 ? 23:16) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 23:16) - (0 ? 23:16) + 1))))))) << (0 ? 23:16))) | (((gctUINT32) ((gctUINT32) (0) & ((gctUINT32) ((((1 ? 23:16) - (0 ? 23:16) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 23:16) - (0 ? 23:16) + 1))))))) << (0 ? 23:16)))));gcmkONERROR(gckOS_ReadRegisterEx(Hardware->os, Hardware->core, 0x00454, &colorKilled));
+        gcmkONERROR(gckOS_WriteRegisterEx(Hardware->os, Hardware->core, 0x00470, ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 23:16) - (0 ? 23:16) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 23:16) - (0 ? 23:16) + 1))))))) << (0 ? 23:16))) | (((gctUINT32) ((gctUINT32) (1) & ((gctUINT32) ((((1 ? 23:16) - (0 ? 23:16) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 23:16) - (0 ? 23:16) + 1))))))) << (0 ? 23:16)))));gcmkONERROR(gckOS_ReadRegisterEx(Hardware->os, Hardware->core, 0x00454, &depthKilled));
+        gcmkONERROR(gckOS_WriteRegisterEx(Hardware->os, Hardware->core, 0x00470, ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 23:16) - (0 ? 23:16) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 23:16) - (0 ? 23:16) + 1))))))) << (0 ? 23:16))) | (((gctUINT32) ((gctUINT32) (2) & ((gctUINT32) ((((1 ? 23:16) - (0 ? 23:16) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 23:16) - (0 ? 23:16) + 1))))))) << (0 ? 23:16)))));gcmkONERROR(gckOS_ReadRegisterEx(Hardware->os, Hardware->core, 0x00454, &colorDrawn));
+        gcmkONERROR(gckOS_WriteRegisterEx(Hardware->os, Hardware->core, 0x00470, ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 23:16) - (0 ? 23:16) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 23:16) - (0 ? 23:16) + 1))))))) << (0 ? 23:16))) | (((gctUINT32) ((gctUINT32) (3) & ((gctUINT32) ((((1 ? 23:16) - (0 ? 23:16) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 23:16) - (0 ? 23:16) + 1))))))) << (0 ? 23:16)))));gcmkONERROR(gckOS_ReadRegisterEx(Hardware->os, Hardware->core, 0x00454, &depthDrawn));
+
+        profiler->pe_pixel_count_killed_by_color_pipe += colorKilled;
+        profiler->pe_pixel_count_killed_by_depth_pipe += depthKilled;
+        profiler->pe_pixel_count_drawn_by_color_pipe += colorDrawn;
+        profiler->pe_pixel_count_drawn_by_depth_pipe += depthDrawn;
+    }
+
+    gcmkUPDATE_PROFILE_DATA(gpuTotalRead64BytesPerFrame);
+    gcmkUPDATE_PROFILE_DATA(gpuTotalWrite64BytesPerFrame);
+#if USE_SW_RESET
+    gcmkRESET_PROFILE_DATA(pe_pixel_count_killed_by_color_pipe, prevPePixelCountKilledByColorPipe);
+    gcmkRESET_PROFILE_DATA(pe_pixel_count_killed_by_depth_pipe, prevPePixelCountKilledByDepthPipe);
+    gcmkRESET_PROFILE_DATA(pe_pixel_count_drawn_by_color_pipe, prevPePixelCountDrawnByColorPipe);
+    gcmkRESET_PROFILE_DATA(pe_pixel_count_drawn_by_depth_pipe, prevPePixelCountDrawnByDepthPipe);
+#endif
+    gcmkUPDATE_PROFILE_DATA(pe_pixel_count_killed_by_color_pipe);
+    gcmkUPDATE_PROFILE_DATA(pe_pixel_count_killed_by_depth_pipe);
+    gcmkUPDATE_PROFILE_DATA(pe_pixel_count_drawn_by_color_pipe);
+    gcmkUPDATE_PROFILE_DATA(pe_pixel_count_drawn_by_depth_pipe);
+
+    /* Reset clock control register. */
+    gcmkONERROR(gckOS_WriteRegisterEx(Hardware->os,
+                                      Hardware->core,
+                                      0x00000,
+                                      clock));
+
+    /* Reset counters. */
+    gcmkONERROR(
+        gckOS_WriteRegisterEx(Hardware->os, Hardware->core, 0x0003C, 1));
+    gcmkONERROR(
+        gckOS_WriteRegisterEx(Hardware->os, Hardware->core, 0x0003C, 0));
+    gcmkONERROR(
+        gckOS_WriteRegisterEx(Hardware->os, Hardware->core, 0x00438, 0));
+    gcmkONERROR(
+        gckOS_WriteRegisterEx(Hardware->os, Hardware->core, 0x00078, 0));
+#if !USE_SW_RESET
+    gcmkONERROR(gckOS_WriteRegisterEx(Hardware->os, Hardware->core, 0x00470,   ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 23:16) - (0 ? 23:16) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 23:16) - (0 ? 23:16) + 1))))))) << (0 ? 23:16))) | (((gctUINT32) ((gctUINT32) (resetValue) & ((gctUINT32) ((((1 ? 23:16) - (0 ? 23:16) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 23:16) - (0 ? 23:16) + 1))))))) << (0 ? 23:16))) ));
+gcmkONERROR(gckOS_WriteRegisterEx(Hardware->os, Hardware->core, 0x00470,   ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 23:16) - (0 ? 23:16) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 23:16) - (0 ? 23:16) + 1))))))) << (0 ? 23:16))) | (((gctUINT32) ((gctUINT32) (0) & ((gctUINT32) ((((1 ? 23:16) - (0 ? 23:16) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 23:16) - (0 ? 23:16) + 1))))))) << (0 ? 23:16)))
+));
+#endif
+    /* SH */
+    gcmkONERROR(gckOS_WriteRegisterEx(Hardware->os, Hardware->core, 0x00470,   ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 31:24) - (0 ? 31:24) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 31:24) - (0 ? 31:24) + 1))))))) << (0 ? 31:24))) | (((gctUINT32) ((gctUINT32) (7) & ((gctUINT32) ((((1 ? 31:24) - (0 ? 31:24) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 31:24) - (0 ? 31:24) + 1))))))) << (0 ? 31:24))) ));
+gcmkONERROR(gckOS_ReadRegisterEx(Hardware->os, Hardware->core, 0x0045C, &profiler->ps_inst_counter));
+    gcmkONERROR(gckOS_WriteRegisterEx(Hardware->os, Hardware->core, 0x00470,   ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 31:24) - (0 ? 31:24) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 31:24) - (0 ? 31:24) + 1))))))) << (0 ? 31:24))) | (((gctUINT32) ((gctUINT32) (8) & ((gctUINT32) ((((1 ? 31:24) - (0 ? 31:24) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 31:24) - (0 ? 31:24) + 1))))))) << (0 ? 31:24))) ));
+gcmkONERROR(gckOS_ReadRegisterEx(Hardware->os, Hardware->core, 0x0045C, &profiler->rendered_pixel_counter));
+    gcmkONERROR(gckOS_WriteRegisterEx(Hardware->os, Hardware->core, 0x00470,   ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 31:24) - (0 ? 31:24) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 31:24) - (0 ? 31:24) + 1))))))) << (0 ? 31:24))) | (((gctUINT32) ((gctUINT32) (9) & ((gctUINT32) ((((1 ? 31:24) - (0 ? 31:24) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 31:24) - (0 ? 31:24) + 1))))))) << (0 ? 31:24))) ));
+gcmkONERROR(gckOS_ReadRegisterEx(Hardware->os, Hardware->core, 0x0045C, &profiler->vs_inst_counter));
+    gcmkONERROR(gckOS_WriteRegisterEx(Hardware->os, Hardware->core, 0x00470,   ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 31:24) - (0 ? 31:24) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 31:24) - (0 ? 31:24) + 1))))))) << (0 ? 31:24))) | (((gctUINT32) ((gctUINT32) (10) & ((gctUINT32) ((((1 ? 31:24) - (0 ? 31:24) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 31:24) - (0 ? 31:24) + 1))))))) << (0 ? 31:24))) ));
+gcmkONERROR(gckOS_ReadRegisterEx(Hardware->os, Hardware->core, 0x0045C, &profiler->rendered_vertice_counter));
+    gcmkONERROR(gckOS_WriteRegisterEx(Hardware->os, Hardware->core, 0x00470,   ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 31:24) - (0 ? 31:24) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 31:24) - (0 ? 31:24) + 1))))))) << (0 ? 31:24))) | (((gctUINT32) ((gctUINT32) (11) & ((gctUINT32) ((((1 ? 31:24) - (0 ? 31:24) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 31:24) - (0 ? 31:24) + 1))))))) << (0 ? 31:24))) ));
+gcmkONERROR(gckOS_ReadRegisterEx(Hardware->os, Hardware->core, 0x0045C, &profiler->vtx_branch_inst_counter));
+    gcmkONERROR(gckOS_WriteRegisterEx(Hardware->os, Hardware->core, 0x00470,   ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 31:24) - (0 ? 31:24) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 31:24) - (0 ? 31:24) + 1))))))) << (0 ? 31:24))) | (((gctUINT32) ((gctUINT32) (12) & ((gctUINT32) ((((1 ? 31:24) - (0 ? 31:24) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 31:24) - (0 ? 31:24) + 1))))))) << (0 ? 31:24))) ));
+gcmkONERROR(gckOS_ReadRegisterEx(Hardware->os, Hardware->core, 0x0045C, &profiler->vtx_texld_inst_counter));
+    gcmkONERROR(gckOS_WriteRegisterEx(Hardware->os, Hardware->core, 0x00470,   ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 31:24) - (0 ? 31:24) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 31:24) - (0 ? 31:24) + 1))))))) << (0 ? 31:24))) | (((gctUINT32) ((gctUINT32) (13) & ((gctUINT32) ((((1 ? 31:24) - (0 ? 31:24) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 31:24) - (0 ? 31:24) + 1))))))) << (0 ? 31:24))) ));
+gcmkONERROR(gckOS_ReadRegisterEx(Hardware->os, Hardware->core, 0x0045C, &profiler->pxl_branch_inst_counter));
+    gcmkONERROR(gckOS_WriteRegisterEx(Hardware->os, Hardware->core, 0x00470,   ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 31:24) - (0 ? 31:24) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 31:24) - (0 ? 31:24) + 1))))))) << (0 ? 31:24))) | (((gctUINT32) ((gctUINT32) (14) & ((gctUINT32) ((((1 ? 31:24) - (0 ? 31:24) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 31:24) - (0 ? 31:24) + 1))))))) << (0 ? 31:24))) ));
+gcmkONERROR(gckOS_ReadRegisterEx(Hardware->os, Hardware->core, 0x0045C, &profiler->pxl_texld_inst_counter));
+
+#if USE_SW_RESET
+    gcmkRESET_PROFILE_DATA(ps_inst_counter, prevPSInstCount);
+    gcmkRESET_PROFILE_DATA(rendered_pixel_counter, prevPSPixelCount);
+    gcmkRESET_PROFILE_DATA(vs_inst_counter, prevVSInstCount);
+    gcmkRESET_PROFILE_DATA(rendered_vertice_counter, prevVSVertexCount);
+    gcmkRESET_PROFILE_DATA(vtx_branch_inst_counter, prevVSBranchInstCount);
+    gcmkRESET_PROFILE_DATA(vtx_texld_inst_counter, prevVSTexInstCount);
+    gcmkRESET_PROFILE_DATA(pxl_branch_inst_counter, prevPSBranchInstCount);
+    gcmkRESET_PROFILE_DATA(pxl_texld_inst_counter, prevPSTexInstCount);
+#endif
+
+    gcmkUPDATE_PROFILE_DATA(ps_inst_counter);
+    gcmkUPDATE_PROFILE_DATA(rendered_pixel_counter);
+    gcmkUPDATE_PROFILE_DATA(vs_inst_counter);
+    gcmkUPDATE_PROFILE_DATA(rendered_vertice_counter);
+    gcmkUPDATE_PROFILE_DATA(vtx_branch_inst_counter);
+    gcmkUPDATE_PROFILE_DATA(vtx_texld_inst_counter);
+    gcmkUPDATE_PROFILE_DATA(pxl_branch_inst_counter);
+    gcmkUPDATE_PROFILE_DATA(pxl_texld_inst_counter);
+
+#if !USE_SW_RESET
+    gcmkONERROR(gckOS_WriteRegisterEx(Hardware->os, Hardware->core, 0x00470,   ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 31:24) - (0 ? 31:24) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 31:24) - (0 ? 31:24) + 1))))))) << (0 ? 31:24))) | (((gctUINT32) ((gctUINT32) (resetValue) & ((gctUINT32) ((((1 ? 31:24) - (0 ? 31:24) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 31:24) - (0 ? 31:24) + 1))))))) << (0 ? 31:24))) ));
+gcmkONERROR(gckOS_WriteRegisterEx(Hardware->os, Hardware->core, 0x00470,   ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 31:24) - (0 ? 31:24) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 31:24) - (0 ? 31:24) + 1))))))) << (0 ? 31:24))) | (((gctUINT32) ((gctUINT32) (0) & ((gctUINT32) ((((1 ? 31:24) - (0 ? 31:24) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 31:24) - (0 ? 31:24) + 1))))))) << (0 ? 31:24)))
+));
+#endif
+
+    /* PA */
+    gcmkONERROR(gckOS_WriteRegisterEx(Hardware->os, Hardware->core, 0x00474,   ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 7:0) - (0 ? 7:0) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 7:0) - (0 ? 7:0) + 1))))))) << (0 ? 7:0))) | (((gctUINT32) ((gctUINT32) (3) & ((gctUINT32) ((((1 ? 7:0) - (0 ? 7:0) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 7:0) - (0 ? 7:0) + 1))))))) << (0 ? 7:0))) ));
+gcmkONERROR(gckOS_ReadRegisterEx(Hardware->os, Hardware->core, 0x00460, &profiler->pa_input_vtx_counter));
+    gcmkONERROR(gckOS_WriteRegisterEx(Hardware->os, Hardware->core, 0x00474,   ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 7:0) - (0 ? 7:0) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 7:0) - (0 ? 7:0) + 1))))))) << (0 ? 7:0))) | (((gctUINT32) ((gctUINT32) (4) & ((gctUINT32) ((((1 ? 7:0) - (0 ? 7:0) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 7:0) - (0 ? 7:0) + 1))))))) << (0 ? 7:0))) ));
+gcmkONERROR(gckOS_ReadRegisterEx(Hardware->os, Hardware->core, 0x00460, &profiler->pa_input_prim_counter));
+    gcmkONERROR(gckOS_WriteRegisterEx(Hardware->os, Hardware->core, 0x00474,   ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 7:0) - (0 ? 7:0) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 7:0) - (0 ? 7:0) + 1))))))) << (0 ? 7:0))) | (((gctUINT32) ((gctUINT32) (5) & ((gctUINT32) ((((1 ? 7:0) - (0 ? 7:0) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 7:0) - (0 ? 7:0) + 1))))))) << (0 ? 7:0))) ));
+gcmkONERROR(gckOS_ReadRegisterEx(Hardware->os, Hardware->core, 0x00460, &profiler->pa_output_prim_counter));
+    gcmkONERROR(gckOS_WriteRegisterEx(Hardware->os, Hardware->core, 0x00474,   ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 7:0) - (0 ? 7:0) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 7:0) - (0 ? 7:0) + 1))))))) << (0 ? 7:0))) | (((gctUINT32) ((gctUINT32) (6) & ((gctUINT32) ((((1 ? 7:0) - (0 ? 7:0) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 7:0) - (0 ? 7:0) + 1))))))) << (0 ? 7:0))) ));
+gcmkONERROR(gckOS_ReadRegisterEx(Hardware->os, Hardware->core, 0x00460, &profiler->pa_depth_clipped_counter));
+    gcmkONERROR(gckOS_WriteRegisterEx(Hardware->os, Hardware->core, 0x00474,   ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 7:0) - (0 ? 7:0) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 7:0) - (0 ? 7:0) + 1))))))) << (0 ? 7:0))) | (((gctUINT32) ((gctUINT32) (7) & ((gctUINT32) ((((1 ? 7:0) - (0 ? 7:0) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 7:0) - (0 ? 7:0) + 1))))))) << (0 ? 7:0))) ));
+gcmkONERROR(gckOS_ReadRegisterEx(Hardware->os, Hardware->core, 0x00460, &profiler->pa_trivial_rejected_counter));
+    gcmkONERROR(gckOS_WriteRegisterEx(Hardware->os, Hardware->core, 0x00474,   ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 7:0) - (0 ? 7:0) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 7:0) - (0 ? 7:0) + 1))))))) << (0 ? 7:0))) | (((gctUINT32) ((gctUINT32) (8) & ((gctUINT32) ((((1 ? 7:0) - (0 ? 7:0) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 7:0) - (0 ? 7:0) + 1))))))) << (0 ? 7:0))) ));
+gcmkONERROR(gckOS_ReadRegisterEx(Hardware->os, Hardware->core, 0x00460, &profiler->pa_culled_counter));
+#if USE_SW_RESET
+    gcmkRESET_PROFILE_DATA(pa_input_vtx_counter, prevPaInputVtxCounter);
+    gcmkRESET_PROFILE_DATA(pa_input_prim_counter, prevPaInputPrimCounter);
+    gcmkRESET_PROFILE_DATA(pa_output_prim_counter, prevPaOutputPrimCounter);
+    gcmkRESET_PROFILE_DATA(pa_depth_clipped_counter, prevPaDepthClippedCounter);
+    gcmkRESET_PROFILE_DATA(pa_trivial_rejected_counter, prevPaTrivialRejectedCounter);
+    gcmkRESET_PROFILE_DATA(pa_culled_counter, prevPaCulledCounter);
+#endif
+    gcmkUPDATE_PROFILE_DATA(pa_input_vtx_counter);
+    gcmkUPDATE_PROFILE_DATA(pa_input_prim_counter);
+    gcmkUPDATE_PROFILE_DATA(pa_output_prim_counter);
+    gcmkUPDATE_PROFILE_DATA(pa_depth_clipped_counter);
+    gcmkUPDATE_PROFILE_DATA(pa_trivial_rejected_counter);
+    gcmkUPDATE_PROFILE_DATA(pa_culled_counter);
+#if !USE_SW_RESET
+    gcmkONERROR(gckOS_WriteRegisterEx(Hardware->os, Hardware->core, 0x00474,   ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 7:0) - (0 ? 7:0) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 7:0) - (0 ? 7:0) + 1))))))) << (0 ? 7:0))) | (((gctUINT32) ((gctUINT32) (resetValue) & ((gctUINT32) ((((1 ? 7:0) - (0 ? 7:0) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 7:0) - (0 ? 7:0) + 1))))))) << (0 ? 7:0))) ));
+gcmkONERROR(gckOS_WriteRegisterEx(Hardware->os, Hardware->core, 0x00474,   ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 7:0) - (0 ? 7:0) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 7:0) - (0 ? 7:0) + 1))))))) << (0 ? 7:0))) | (((gctUINT32) ((gctUINT32) (0) & ((gctUINT32) ((((1 ? 7:0) - (0 ? 7:0) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 7:0) - (0 ? 7:0) + 1))))))) << (0 ? 7:0)))
+));
+#endif
+
+    /* SE */
+    gcmkONERROR(gckOS_WriteRegisterEx(Hardware->os, Hardware->core, 0x00474,   ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 15:8) - (0 ? 15:8) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 15:8) - (0 ? 15:8) + 1))))))) << (0 ? 15:8))) | (((gctUINT32) ((gctUINT32) (0) & ((gctUINT32) ((((1 ? 15:8) - (0 ? 15:8) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 15:8) - (0 ? 15:8) + 1))))))) << (0 ? 15:8))) ));
+gcmkONERROR(gckOS_ReadRegisterEx(Hardware->os, Hardware->core, 0x00464, &profiler->se_culled_triangle_count));
+    gcmkUPDATE_PROFILE_DATA(se_culled_triangle_count);
+    gcmkONERROR(gckOS_WriteRegisterEx(Hardware->os, Hardware->core, 0x00474,   ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 15:8) - (0 ? 15:8) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 15:8) - (0 ? 15:8) + 1))))))) << (0 ? 15:8))) | (((gctUINT32) ((gctUINT32) (1) & ((gctUINT32) ((((1 ? 15:8) - (0 ? 15:8) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 15:8) - (0 ? 15:8) + 1))))))) << (0 ? 15:8))) ));
+gcmkONERROR(gckOS_ReadRegisterEx(Hardware->os, Hardware->core, 0x00464, &profiler->se_culled_lines_count));
+    gcmkUPDATE_PROFILE_DATA(se_culled_lines_count);
+    gcmkONERROR(gckOS_WriteRegisterEx(Hardware->os, Hardware->core, 0x00474,   ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 15:8) - (0 ? 15:8) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 15:8) - (0 ? 15:8) + 1))))))) << (0 ? 15:8))) | (((gctUINT32) ((gctUINT32) (resetValue) & ((gctUINT32) ((((1 ? 15:8) - (0 ? 15:8) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 15:8) - (0 ? 15:8) + 1))))))) << (0 ? 15:8))) ));
+gcmkONERROR(gckOS_WriteRegisterEx(Hardware->os, Hardware->core, 0x00474,   ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 15:8) - (0 ? 15:8) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 15:8) - (0 ? 15:8) + 1))))))) << (0 ? 15:8))) | (((gctUINT32) ((gctUINT32) (0) & ((gctUINT32) ((((1 ? 15:8) - (0 ? 15:8) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 15:8) - (0 ? 15:8) + 1))))))) << (0 ? 15:8)))
+));
+
+    /* RA */
+    gcmkONERROR(gckOS_WriteRegisterEx(Hardware->os, Hardware->core, 0x00474,   ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 23:16) - (0 ? 23:16) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 23:16) - (0 ? 23:16) + 1))))))) << (0 ? 23:16))) | (((gctUINT32) ((gctUINT32) (0) & ((gctUINT32) ((((1 ? 23:16) - (0 ? 23:16) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 23:16) - (0 ? 23:16) + 1))))))) << (0 ? 23:16))) ));
+gcmkONERROR(gckOS_ReadRegisterEx(Hardware->os, Hardware->core, 0x00448, &profiler->ra_valid_pixel_count));
+    gcmkONERROR(gckOS_WriteRegisterEx(Hardware->os, Hardware->core, 0x00474,   ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 23:16) - (0 ? 23:16) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 23:16) - (0 ? 23:16) + 1))))))) << (0 ? 23:16))) | (((gctUINT32) ((gctUINT32) (1) & ((gctUINT32) ((((1 ? 23:16) - (0 ? 23:16) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 23:16) - (0 ? 23:16) + 1))))))) << (0 ? 23:16))) ));
+gcmkONERROR(gckOS_ReadRegisterEx(Hardware->os, Hardware->core, 0x00448, &profiler->ra_total_quad_count));
+    gcmkONERROR(gckOS_WriteRegisterEx(Hardware->os, Hardware->core, 0x00474,   ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 23:16) - (0 ? 23:16) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 23:16) - (0 ? 23:16) + 1))))))) << (0 ? 23:16))) | (((gctUINT32) ((gctUINT32) (2) & ((gctUINT32) ((((1 ? 23:16) - (0 ? 23:16) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 23:16) - (0 ? 23:16) + 1))))))) << (0 ? 23:16))) ));
+gcmkONERROR(gckOS_ReadRegisterEx(Hardware->os, Hardware->core, 0x00448, &profiler->ra_valid_quad_count_after_early_z));
+    gcmkONERROR(gckOS_WriteRegisterEx(Hardware->os, Hardware->core, 0x00474,   ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 23:16) - (0 ? 23:16) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 23:16) - (0 ? 23:16) + 1))))))) << (0 ? 23:16))) | (((gctUINT32) ((gctUINT32) (3) & ((gctUINT32) ((((1 ? 23:16) - (0 ? 23:16) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 23:16) - (0 ? 23:16) + 1))))))) << (0 ? 23:16))) ));
+gcmkONERROR(gckOS_ReadRegisterEx(Hardware->os, Hardware->core, 0x00448, &profiler->ra_total_primitive_count));
+    gcmkONERROR(gckOS_WriteRegisterEx(Hardware->os, Hardware->core, 0x00474,   ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 23:16) - (0 ? 23:16) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 23:16) - (0 ? 23:16) + 1))))))) << (0 ? 23:16))) | (((gctUINT32) ((gctUINT32) (9) & ((gctUINT32) ((((1 ? 23:16) - (0 ? 23:16) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 23:16) - (0 ? 23:16) + 1))))))) << (0 ? 23:16))) ));
+gcmkONERROR(gckOS_ReadRegisterEx(Hardware->os, Hardware->core, 0x00448, &profiler->ra_pipe_cache_miss_counter));
+    gcmkONERROR(gckOS_WriteRegisterEx(Hardware->os, Hardware->core, 0x00474,   ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 23:16) - (0 ? 23:16) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 23:16) - (0 ? 23:16) + 1))))))) << (0 ? 23:16))) | (((gctUINT32) ((gctUINT32) (10) & ((gctUINT32) ((((1 ? 23:16) - (0 ? 23:16) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 23:16) - (0 ? 23:16) + 1))))))) << (0 ? 23:16))) ));
+gcmkONERROR(gckOS_ReadRegisterEx(Hardware->os, Hardware->core, 0x00448, &profiler->ra_prefetch_cache_miss_counter));
+#if USE_SW_RESET
+    gcmkRESET_PROFILE_DATA(ra_valid_pixel_count, prevRaValidPixelCount);
+    gcmkRESET_PROFILE_DATA(ra_total_quad_count, prevRaTotalQuadCount);
+    gcmkRESET_PROFILE_DATA(ra_valid_quad_count_after_early_z, prevRaValidQuadCountAfterEarlyZ);
+    gcmkRESET_PROFILE_DATA(ra_total_primitive_count, prevRaTotalPrimitiveCount);
+    gcmkRESET_PROFILE_DATA(ra_pipe_cache_miss_counter, prevRaPipeCacheMissCounter);
+    gcmkRESET_PROFILE_DATA(ra_prefetch_cache_miss_counter, prevRaPrefetchCacheMissCounter);
+#endif
+    gcmkUPDATE_PROFILE_DATA(ra_valid_pixel_count);
+    gcmkUPDATE_PROFILE_DATA(ra_total_quad_count);
+    gcmkUPDATE_PROFILE_DATA(ra_valid_quad_count_after_early_z);
+    gcmkUPDATE_PROFILE_DATA(ra_total_primitive_count);
+    gcmkUPDATE_PROFILE_DATA(ra_pipe_cache_miss_counter);
+    gcmkUPDATE_PROFILE_DATA(ra_prefetch_cache_miss_counter);
+#if !USE_SW_RESET
+    gcmkONERROR(gckOS_WriteRegisterEx(Hardware->os, Hardware->core, 0x00474,   ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 23:16) - (0 ? 23:16) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 23:16) - (0 ? 23:16) + 1))))))) << (0 ? 23:16))) | (((gctUINT32) ((gctUINT32) (resetValue) & ((gctUINT32) ((((1 ? 23:16) - (0 ? 23:16) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 23:16) - (0 ? 23:16) + 1))))))) << (0 ? 23:16))) ));
+gcmkONERROR(gckOS_WriteRegisterEx(Hardware->os, Hardware->core, 0x00474,   ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 23:16) - (0 ? 23:16) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 23:16) - (0 ? 23:16) + 1))))))) << (0 ? 23:16))) | (((gctUINT32) ((gctUINT32) (0) & ((gctUINT32) ((((1 ? 23:16) - (0 ? 23:16) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 23:16) - (0 ? 23:16) + 1))))))) << (0 ? 23:16)))
+));
+#endif
+
+    /* TX */
+    gcmkONERROR(gckOS_WriteRegisterEx(Hardware->os, Hardware->core, 0x00474,   ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 31:24) - (0 ? 31:24) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 31:24) - (0 ? 31:24) + 1))))))) << (0 ? 31:24))) | (((gctUINT32) ((gctUINT32) (0) & ((gctUINT32) ((((1 ? 31:24) - (0 ? 31:24) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 31:24) - (0 ? 31:24) + 1))))))) << (0 ? 31:24))) ));
+gcmkONERROR(gckOS_ReadRegisterEx(Hardware->os, Hardware->core, 0x0044C, &profiler->tx_total_bilinear_requests));
+    gcmkUPDATE_PROFILE_DATA(tx_total_bilinear_requests);
+    gcmkONERROR(gckOS_WriteRegisterEx(Hardware->os, Hardware->core, 0x00474,   ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 31:24) - (0 ? 31:24) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 31:24) - (0 ? 31:24) + 1))))))) << (0 ? 31:24))) | (((gctUINT32) ((gctUINT32) (1) & ((gctUINT32) ((((1 ? 31:24) - (0 ? 31:24) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 31:24) - (0 ? 31:24) + 1))))))) << (0 ? 31:24))) ));
+gcmkONERROR(gckOS_ReadRegisterEx(Hardware->os, Hardware->core, 0x0044C, &profiler->tx_total_trilinear_requests));
+    gcmkUPDATE_PROFILE_DATA(tx_total_trilinear_requests);
+    gcmkONERROR(gckOS_WriteRegisterEx(Hardware->os, Hardware->core, 0x00474,   ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 31:24) - (0 ? 31:24) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 31:24) - (0 ? 31:24) + 1))))))) << (0 ? 31:24))) | (((gctUINT32) ((gctUINT32) (2) & ((gctUINT32) ((((1 ? 31:24) - (0 ? 31:24) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 31:24) - (0 ? 31:24) + 1))))))) << (0 ? 31:24))) ));
+gcmkONERROR(gckOS_ReadRegisterEx(Hardware->os, Hardware->core, 0x0044C, &profiler->tx_total_discarded_texture_requests));
+    gcmkUPDATE_PROFILE_DATA(tx_total_discarded_texture_requests);
+    gcmkONERROR(gckOS_WriteRegisterEx(Hardware->os, Hardware->core, 0x00474,   ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 31:24) - (0 ? 31:24) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 31:24) - (0 ? 31:24) + 1))))))) << (0 ? 31:24))) | (((gctUINT32) ((gctUINT32) (3) & ((gctUINT32) ((((1 ? 31:24) - (0 ? 31:24) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 31:24) - (0 ? 31:24) + 1))))))) << (0 ? 31:24))) ));
+gcmkONERROR(gckOS_ReadRegisterEx(Hardware->os, Hardware->core, 0x0044C, &profiler->tx_total_texture_requests));
+    gcmkUPDATE_PROFILE_DATA(tx_total_texture_requests);
+    gcmkONERROR(gckOS_WriteRegisterEx(Hardware->os, Hardware->core, 0x00474,   ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 31:24) - (0 ? 31:24) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 31:24) - (0 ? 31:24) + 1))))))) << (0 ? 31:24))) | (((gctUINT32) ((gctUINT32) (5) & ((gctUINT32) ((((1 ? 31:24) - (0 ? 31:24) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 31:24) - (0 ? 31:24) + 1))))))) << (0 ? 31:24))) ));
+gcmkONERROR(gckOS_ReadRegisterEx(Hardware->os, Hardware->core, 0x0044C, &profiler->tx_mem_read_count));
+    gcmkUPDATE_PROFILE_DATA(tx_mem_read_count);
+    gcmkONERROR(gckOS_WriteRegisterEx(Hardware->os, Hardware->core, 0x00474,   ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 31:24) - (0 ? 31:24) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 31:24) - (0 ? 31:24) + 1))))))) << (0 ? 31:24))) | (((gctUINT32) ((gctUINT32) (6) & ((gctUINT32) ((((1 ? 31:24) - (0 ? 31:24) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 31:24) - (0 ? 31:24) + 1))))))) << (0 ? 31:24))) ));
+gcmkONERROR(gckOS_ReadRegisterEx(Hardware->os, Hardware->core, 0x0044C, &profiler->tx_mem_read_in_8B_count));
+    gcmkUPDATE_PROFILE_DATA(tx_mem_read_in_8B_count);
+    gcmkONERROR(gckOS_WriteRegisterEx(Hardware->os, Hardware->core, 0x00474,   ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 31:24) - (0 ? 31:24) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 31:24) - (0 ? 31:24) + 1))))))) << (0 ? 31:24))) | (((gctUINT32) ((gctUINT32) (7) & ((gctUINT32) ((((1 ? 31:24) - (0 ? 31:24) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 31:24) - (0 ? 31:24) + 1))))))) << (0 ? 31:24))) ));
+gcmkONERROR(gckOS_ReadRegisterEx(Hardware->os, Hardware->core, 0x0044C, &profiler->tx_cache_miss_count));
+    gcmkUPDATE_PROFILE_DATA(tx_cache_miss_count);
+    gcmkONERROR(gckOS_WriteRegisterEx(Hardware->os, Hardware->core, 0x00474,   ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 31:24) - (0 ? 31:24) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 31:24) - (0 ? 31:24) + 1))))))) << (0 ? 31:24))) | (((gctUINT32) ((gctUINT32) (8) & ((gctUINT32) ((((1 ? 31:24) - (0 ? 31:24) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 31:24) - (0 ? 31:24) + 1))))))) << (0 ? 31:24))) ));
+gcmkONERROR(gckOS_ReadRegisterEx(Hardware->os, Hardware->core, 0x0044C, &profiler->tx_cache_hit_texel_count));
+    gcmkUPDATE_PROFILE_DATA(tx_cache_hit_texel_count);
+    gcmkONERROR(gckOS_WriteRegisterEx(Hardware->os, Hardware->core, 0x00474,   ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 31:24) - (0 ? 31:24) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 31:24) - (0 ? 31:24) + 1))))))) << (0 ? 31:24))) | (((gctUINT32) ((gctUINT32) (9) & ((gctUINT32) ((((1 ? 31:24) - (0 ? 31:24) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 31:24) - (0 ? 31:24) + 1))))))) << (0 ? 31:24))) ));
+gcmkONERROR(gckOS_ReadRegisterEx(Hardware->os, Hardware->core, 0x0044C, &profiler->tx_cache_miss_texel_count));
+    gcmkUPDATE_PROFILE_DATA(tx_cache_miss_texel_count);
+    gcmkONERROR(gckOS_WriteRegisterEx(Hardware->os, Hardware->core, 0x00474,   ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 31:24) - (0 ? 31:24) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 31:24) - (0 ? 31:24) + 1))))))) << (0 ? 31:24))) | (((gctUINT32) ((gctUINT32) (resetValue) & ((gctUINT32) ((((1 ? 31:24) - (0 ? 31:24) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 31:24) - (0 ? 31:24) + 1))))))) << (0 ? 31:24))) ));
+gcmkONERROR(gckOS_WriteRegisterEx(Hardware->os, Hardware->core, 0x00474,   ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 31:24) - (0 ? 31:24) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 31:24) - (0 ? 31:24) + 1))))))) << (0 ? 31:24))) | (((gctUINT32) ((gctUINT32) (0) & ((gctUINT32) ((((1 ? 31:24) - (0 ? 31:24) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 31:24) - (0 ? 31:24) + 1))))))) << (0 ? 31:24)))
+));
+
+    /* MC */
+    gcmkONERROR(gckOS_WriteRegisterEx(Hardware->os, Hardware->core, 0x00478,   ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 7:0) - (0 ? 7:0) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 7:0) - (0 ? 7:0) + 1))))))) << (0 ? 7:0))) | (((gctUINT32) ((gctUINT32) (1) & ((gctUINT32) ((((1 ? 7:0) - (0 ? 7:0) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 7:0) - (0 ? 7:0) + 1))))))) << (0 ? 7:0))) ));
+gcmkONERROR(gckOS_ReadRegisterEx(Hardware->os, Hardware->core, 0x00468, &profiler->mc_total_read_req_8B_from_pipeline));
+    gcmkUPDATE_PROFILE_DATA(mc_total_read_req_8B_from_pipeline);
+    gcmkONERROR(gckOS_WriteRegisterEx(Hardware->os, Hardware->core, 0x00478,   ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 7:0) - (0 ? 7:0) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 7:0) - (0 ? 7:0) + 1))))))) << (0 ? 7:0))) | (((gctUINT32) ((gctUINT32) (2) & ((gctUINT32) ((((1 ? 7:0) - (0 ? 7:0) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 7:0) - (0 ? 7:0) + 1))))))) << (0 ? 7:0))) ));
+gcmkONERROR(gckOS_ReadRegisterEx(Hardware->os, Hardware->core, 0x00468, &profiler->mc_total_read_req_8B_from_IP));
+    gcmkUPDATE_PROFILE_DATA(mc_total_read_req_8B_from_IP);
+    gcmkONERROR(gckOS_WriteRegisterEx(Hardware->os, Hardware->core, 0x00478,   ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 7:0) - (0 ? 7:0) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 7:0) - (0 ? 7:0) + 1))))))) << (0 ? 7:0))) | (((gctUINT32) ((gctUINT32) (3) & ((gctUINT32) ((((1 ? 7:0) - (0 ? 7:0) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 7:0) - (0 ? 7:0) + 1))))))) << (0 ? 7:0))) ));
+gcmkONERROR(gckOS_ReadRegisterEx(Hardware->os, Hardware->core, 0x00468, &profiler->mc_total_write_req_8B_from_pipeline));
+    gcmkUPDATE_PROFILE_DATA(mc_total_write_req_8B_from_pipeline);
+    gcmkONERROR(gckOS_WriteRegisterEx(Hardware->os, Hardware->core, 0x00478,   ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 7:0) - (0 ? 7:0) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 7:0) - (0 ? 7:0) + 1))))))) << (0 ? 7:0))) | (((gctUINT32) ((gctUINT32) (resetValue) & ((gctUINT32) ((((1 ? 7:0) - (0 ? 7:0) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 7:0) - (0 ? 7:0) + 1))))))) << (0 ? 7:0))) ));
+gcmkONERROR(gckOS_WriteRegisterEx(Hardware->os, Hardware->core, 0x00478,   ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 7:0) - (0 ? 7:0) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 7:0) - (0 ? 7:0) + 1))))))) << (0 ? 7:0))) | (((gctUINT32) ((gctUINT32) (0) & ((gctUINT32) ((((1 ? 7:0) - (0 ? 7:0) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 7:0) - (0 ? 7:0) + 1))))))) << (0 ? 7:0)))
+));
+
+    /* HI */
+    gcmkONERROR(gckOS_WriteRegisterEx(Hardware->os, Hardware->core, 0x00478,   ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 15:8) - (0 ? 15:8) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 15:8) - (0 ? 15:8) + 1))))))) << (0 ? 15:8))) | (((gctUINT32) ((gctUINT32) (0) & ((gctUINT32) ((((1 ? 15:8) - (0 ? 15:8) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 15:8) - (0 ? 15:8) + 1))))))) << (0 ? 15:8))) ));
+gcmkONERROR(gckOS_ReadRegisterEx(Hardware->os, Hardware->core, 0x0046C, &profiler->hi_axi_cycles_read_request_stalled));
+    gcmkUPDATE_PROFILE_DATA(hi_axi_cycles_read_request_stalled);
+    gcmkONERROR(gckOS_WriteRegisterEx(Hardware->os, Hardware->core, 0x00478,   ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 15:8) - (0 ? 15:8) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 15:8) - (0 ? 15:8) + 1))))))) << (0 ? 15:8))) | (((gctUINT32) ((gctUINT32) (1) & ((gctUINT32) ((((1 ? 15:8) - (0 ? 15:8) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 15:8) - (0 ? 15:8) + 1))))))) << (0 ? 15:8))) ));
+gcmkONERROR(gckOS_ReadRegisterEx(Hardware->os, Hardware->core, 0x0046C, &profiler->hi_axi_cycles_write_request_stalled));
+    gcmkUPDATE_PROFILE_DATA(hi_axi_cycles_write_request_stalled);
+    gcmkONERROR(gckOS_WriteRegisterEx(Hardware->os, Hardware->core, 0x00478,   ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 15:8) - (0 ? 15:8) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 15:8) - (0 ? 15:8) + 1))))))) << (0 ? 15:8))) | (((gctUINT32) ((gctUINT32) (2) & ((gctUINT32) ((((1 ? 15:8) - (0 ? 15:8) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 15:8) - (0 ? 15:8) + 1))))))) << (0 ? 15:8))) ));
+gcmkONERROR(gckOS_ReadRegisterEx(Hardware->os, Hardware->core, 0x0046C, &profiler->hi_axi_cycles_write_data_stalled));
+    gcmkUPDATE_PROFILE_DATA(hi_axi_cycles_write_data_stalled);
+    gcmkONERROR(gckOS_WriteRegisterEx(Hardware->os, Hardware->core, 0x00478,   ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 15:8) - (0 ? 15:8) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 15:8) - (0 ? 15:8) + 1))))))) << (0 ? 15:8))) | (((gctUINT32) ((gctUINT32) (resetValue) & ((gctUINT32) ((((1 ? 15:8) - (0 ? 15:8) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 15:8) - (0 ? 15:8) + 1))))))) << (0 ? 15:8))) ));
+gcmkONERROR(gckOS_WriteRegisterEx(Hardware->os, Hardware->core, 0x00478,   ((((gctUINT32) (0)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 15:8) - (0 ? 15:8) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 15:8) - (0 ? 15:8) + 1))))))) << (0 ? 15:8))) | (((gctUINT32) ((gctUINT32) (0) & ((gctUINT32) ((((1 ? 15:8) - (0 ? 15:8) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 15:8) - (0 ? 15:8) + 1))))))) << (0 ? 15:8)))
+));
+
+    /* Success. */
+    gcmkFOOTER_NO();
+    return gcvSTATUS_OK;
+
+OnError:
+    /* Return the status. */
+    gcmkFOOTER();
+    return status;
+}
+#endif
+
+
+gceSTATUS
+gckHARDWARE_InitProfiler(
+    IN gckHARDWARE Hardware
+    )
+{
+    gceSTATUS status;
+    gctUINT32 control;
+
+    gcmkHEADER_ARG("Hardware=0x%x", Hardware);
+    gcmkONERROR(gckOS_ReadRegisterEx(Hardware->os,
+                                     Hardware->core,
+                                     0x00000,
+                                     &control));
+    /* Enable debug register. */
+    gcmkONERROR(gckOS_WriteRegisterEx(Hardware->os,
+                                      Hardware->core,
+                                      0x00000,
+                                      ((((gctUINT32) (control)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 11:11) - (0 ? 11:11) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 11:11) - (0 ? 11:11) + 1))))))) << (0 ? 11:11))) | (((gctUINT32) ((gctUINT32) (0) & ((gctUINT32) ((((1 ? 11:11) - (0 ? 11:11) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 11:11) - (0 ? 11:11) + 1))))))) << (0 ? 11:11)))));
+
+OnError:
+    /* Return the status. */
+    gcmkFOOTER();
+    return status;
+}
+
+static gceSTATUS
+_ResetGPU(
+    IN gckHARDWARE Hardware,
+    IN gckOS Os,
+    IN gceCORE Core
+    )
+{
+    gctUINT32 control, idle;
+    gceSTATUS status;
+
+    for (;;)
+    {
+        /* Disable clock gating. */
+        gcmkONERROR(gckOS_WriteRegisterEx(Os,
+                    Core,
+                    Hardware->powerBaseAddress +
+                    0x00104,
+                    0x00000000));
+
+        control = ((((gctUINT32) (0x01590880)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 17:17) - (0 ? 17:17) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 17:17) - (0 ? 17:17) + 1))))))) << (0 ? 17:17))) | (((gctUINT32) ((gctUINT32) (1) & ((gctUINT32) ((((1 ? 17:17) - (0 ? 17:17) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 17:17) - (0 ? 17:17) + 1))))))) << (0 ? 17:17)));
+
+        /* Disable pulse-eater. */
+        gcmkONERROR(gckOS_WriteRegisterEx(Os,
+                    Core,
+                    0x0010C,
+                    control));
+
+        gcmkONERROR(gckOS_WriteRegisterEx(Os,
+                    Core,
+                    0x0010C,
+                    ((((gctUINT32) (control)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 0:0) - (0 ? 0:0) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 0:0) - (0 ? 0:0) + 1))))))) << (0 ? 0:0))) | (((gctUINT32) ((gctUINT32) (1) & ((gctUINT32) ((((1 ? 0:0) - (0 ? 0:0) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 0:0) - (0 ? 0:0) + 1))))))) << (0 ? 0:0)))));
+
+        gcmkONERROR(gckOS_WriteRegisterEx(Os,
+                    Core,
+                    0x0010C,
+                    control));
+
+        gcmkONERROR(gckOS_WriteRegisterEx(Os,
+                    Core,
+                    0x00000,
+                    ((((gctUINT32) (0x00000900)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 9:9) - (0 ? 9:9) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 9:9) - (0 ? 9:9) + 1))))))) << (0 ? 9:9))) | (((gctUINT32) ((gctUINT32) (1) & ((gctUINT32) ((((1 ? 9:9) - (0 ? 9:9) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 9:9) - (0 ? 9:9) + 1))))))) << (0 ? 9:9)))));
+
+        gcmkONERROR(gckOS_WriteRegisterEx(Os,
+                    Core,
+                    0x00000,
+                    0x00000900));
+
+        /* Wait for clock being stable. */
+        gcmkONERROR(gckOS_Delay(Os, 1));
+
+        /* Isolate the GPU. */
+        control = ((((gctUINT32) (0x00000900)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 19:19) - (0 ? 19:19) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 19:19) - (0 ? 19:19) + 1))))))) << (0 ? 19:19))) | (((gctUINT32) ((gctUINT32) (1) & ((gctUINT32) ((((1 ? 19:19) - (0 ? 19:19) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 19:19) - (0 ? 19:19) + 1))))))) << (0 ? 19:19)));
+
+        gcmkONERROR(gckOS_WriteRegisterEx(Os,
+                                          Core,
+                                          0x00000,
+                                          control));
+
+        /* Set soft reset. */
+        gcmkONERROR(gckOS_WriteRegisterEx(Os,
+                                          Core,
+                                          0x00000,
+                                          ((((gctUINT32) (control)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 12:12) - (0 ? 12:12) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 12:12) - (0 ? 12:12) + 1))))))) << (0 ? 12:12))) | (((gctUINT32) ((gctUINT32) (1) & ((gctUINT32) ((((1 ? 12:12) - (0 ? 12:12) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 12:12) - (0 ? 12:12) + 1))))))) << (0 ? 12:12)))));
+
+        /* Wait for reset. */
+        gcmkONERROR(gckOS_Delay(Os, 1));
+
+        /* Reset soft reset bit. */
+        gcmkONERROR(gckOS_WriteRegisterEx(Os,
+                                          Core,
+                                          0x00000,
+                                          ((((gctUINT32) (control)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 12:12) - (0 ? 12:12) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 12:12) - (0 ? 12:12) + 1))))))) << (0 ? 12:12))) | (((gctUINT32) ((gctUINT32) (0) & ((gctUINT32) ((((1 ? 12:12) - (0 ? 12:12) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 12:12) - (0 ? 12:12) + 1))))))) << (0 ? 12:12)))));
+
+        /* Reset GPU isolation. */
+        control = ((((gctUINT32) (control)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 19:19) - (0 ? 19:19) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 19:19) - (0 ? 19:19) + 1))))))) << (0 ? 19:19))) | (((gctUINT32) ((gctUINT32) (0) & ((gctUINT32) ((((1 ? 19:19) - (0 ? 19:19) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 19:19) - (0 ? 19:19) + 1))))))) << (0 ? 19:19)));
+
+        gcmkONERROR(gckOS_WriteRegisterEx(Os,
+                                          Core,
+                                          0x00000,
+                                          control));
+
+        /* Read idle register. */
+        gcmkONERROR(gckOS_ReadRegisterEx(Os,
+                                         Core,
+                                         0x00004,
+                                         &idle));
+
+        if ((((((gctUINT32) (idle)) >> (0 ? 0:0)) & ((gctUINT32) ((((1 ? 0:0) - (0 ? 0:0) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 0:0) - (0 ? 0:0) + 1)))))) ) == 0)
+        {
+            continue;
+        }
+
+        /* Read reset register. */
+        gcmkONERROR(gckOS_ReadRegisterEx(Os,
+                                         Core,
+                                         0x00000,
+                                         &control));
+
+        if (((((((gctUINT32) (control)) >> (0 ? 16:16)) & ((gctUINT32) ((((1 ? 16:16) - (0 ? 16:16) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 16:16) - (0 ? 16:16) + 1)))))) ) == 0)
+        ||  ((((((gctUINT32) (control)) >> (0 ? 17:17)) & ((gctUINT32) ((((1 ? 17:17) - (0 ? 17:17) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 17:17) - (0 ? 17:17) + 1)))))) ) == 0)
+        )
+        {
+            continue;
+        }
+
+        /* GPU is idle. */
+        break;
+    }
+
+    /* Success. */
+    return gcvSTATUS_OK;
+
+OnError:
+
+    /* Return the error. */
+    return status;
+}
+
+gceSTATUS
+gckHARDWARE_Reset(
+    IN gckHARDWARE Hardware
+    )
+{
+    gceSTATUS status;
+
+    gcmkHEADER_ARG("Hardware=0x%x", Hardware);
+
+    /* Verify the arguments. */
+    gcmkVERIFY_OBJECT(Hardware, gcvOBJ_HARDWARE);
+    gcmkVERIFY_OBJECT(Hardware->kernel, gcvOBJ_KERNEL);
+
+    /* Hardware reset. */
+    status = gckOS_ResetGPU(Hardware->os, Hardware->core);
+
+    if (gcmIS_ERROR(status))
+    {
+        if (Hardware->identity.chipRevision < 0x4600)
+        {
+            /* Not supported - we need the isolation bit. */
+            gcmkONERROR(gcvSTATUS_NOT_SUPPORTED);
+        }
+
+        /* Soft reset. */
+        gcmkONERROR(_ResetGPU(Hardware, Hardware->os, Hardware->core));
+    }
+
+    /* Initialize hardware. */
+    gcmkONERROR(gckHARDWARE_InitializeHardware(Hardware));
+
+    /* Jump to address into which GPU should run if it doesn't stuck. */
+    gcmkONERROR(gckHARDWARE_Execute(Hardware, Hardware->kernel->restoreAddress, 16));
+
+    gcmkPRINT("[galcore]: recovery done");
+
+    /* Success. */
+    gcmkFOOTER_NO();
+    return gcvSTATUS_OK;
+
+OnError:
+    gcmkPRINT("[galcore]: Hardware not reset successfully, give up");
+
+    /* Return the error. */
+    gcmkFOOTER();
+    return status;
+}
+
+gceSTATUS
+gckHARDWARE_GetBaseAddress(
+    IN gckHARDWARE Hardware,
+    OUT gctUINT32_PTR BaseAddress
+    )
+{
+    gceSTATUS status;
+
+    gcmkHEADER_ARG("Hardware=0x%x", Hardware);
+
+    /* Verify the arguments. */
+    gcmkVERIFY_OBJECT(Hardware, gcvOBJ_HARDWARE);
+    gcmkVERIFY_ARGUMENT(BaseAddress != gcvNULL);
+
+    /* Test if we have a new Memory Controller. */
+    if (((((gctUINT32) (Hardware->identity.chipMinorFeatures)) >> (0 ? 22:22) & ((gctUINT32) ((((1 ? 22:22) - (0 ? 22:22) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 22:22) - (0 ? 22:22) + 1)))))) == (0x1 & ((gctUINT32) ((((1 ? 22:22) - (0 ? 22:22) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 22:22) - (0 ? 22:22) + 1))))))))
+    {
+        /* No base address required. */
+        *BaseAddress = 0;
+    }
+    else
+    {
+        /* Get the base address from the OS. */
+        gcmkONERROR(gckOS_GetBaseAddress(Hardware->os, BaseAddress));
+    }
+
+    /* Success. */
+    gcmkFOOTER_ARG("*BaseAddress=0x%08x", *BaseAddress);
+    return gcvSTATUS_OK;
+
+OnError:
+    /* Return the status. */
+    gcmkFOOTER();
+    return status;
+}
+
+gceSTATUS
+gckHARDWARE_NeedBaseAddress(
+    IN gckHARDWARE Hardware,
+    IN gctUINT32 State,
+    OUT gctBOOL_PTR NeedBase
+    )
+{
+    gctBOOL need = gcvFALSE;
+
+    gcmkHEADER_ARG("Hardware=0x%x State=0x%08x", Hardware, State);
+
+    /* Verify the arguments. */
+    gcmkVERIFY_OBJECT(Hardware, gcvOBJ_HARDWARE);
+    gcmkVERIFY_ARGUMENT(NeedBase != gcvNULL);
+
+    /* Make sure this is a load state. */
+    if (((((gctUINT32) (State)) >> (0 ? 31:27) & ((gctUINT32) ((((1 ? 31:27) - (0 ? 31:27) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 31:27) - (0 ? 31:27) + 1)))))) == (0x01 & ((gctUINT32) ((((1 ? 31:27) - (0 ? 31:27) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 31:27) - (0 ? 31:27) + 1))))))))
+    {
+        /* 2D addresses don't need a base address. */
+    }
+
+    /* Return the flag. */
+    *NeedBase = need;
+
+    /* Success. */
+    gcmkFOOTER_ARG("*NeedBase=%d", *NeedBase);
+    return gcvSTATUS_OK;
+}
+
+gceSTATUS
+gckHARDWARE_SetIsrManager(
+   IN gckHARDWARE Hardware,
+   IN gctISRMANAGERFUNC StartIsr,
+   IN gctISRMANAGERFUNC StopIsr,
+   IN gctPOINTER Context
+   )
+{
+    gceSTATUS status = gcvSTATUS_OK;
+
+    gcmkHEADER_ARG("Hardware=0x%x, StartIsr=0x%x, StopIsr=0x%x, Context=0x%x",
+                   Hardware, StartIsr, StopIsr, Context);
+
+    /* Verify the arguments. */
+    gcmkVERIFY_OBJECT(Hardware, gcvOBJ_HARDWARE);
+
+    if (StartIsr == gcvNULL ||
+        StopIsr == gcvNULL ||
+        Context == gcvNULL)
+    {
+        status = gcvSTATUS_INVALID_ARGUMENT;
+
+        gcmkFOOTER();
+        return status;
+    }
+
+    Hardware->startIsr = StartIsr;
+    Hardware->stopIsr = StopIsr;
+    Hardware->isrContext = Context;
+
+    /* Success. */
+    gcmkFOOTER();
+
+    return status;
+}
+
+/*******************************************************************************
+**
+**  gckHARDWARE_Compose
+**
+**  Start a composition.
+**
+**  INPUT:
+**
+**      gckHARDWARE Hardware
+**          Pointer to the gckHARDWARE object.
+**
+**  OUTPUT:
+**
+**      Nothing.
+*/
+gceSTATUS
+gckHARDWARE_Compose(
+    IN gckHARDWARE Hardware,
+    IN gctUINT32 ProcessID,
+    IN gctPHYS_ADDR Physical,
+    IN gctPOINTER Logical,
+    IN gctSIZE_T Offset,
+    IN gctSIZE_T Size,
+    IN gctUINT8 EventID
+    )
+{
+    /* Return the status. */
+    return gcvSTATUS_NOT_SUPPORTED;
+}
+
+/*******************************************************************************
+**
+**  gckHARDWARE_IsFeatureAvailable
+**
+**  Verifies whether the specified feature is available in hardware.
+**
+**  INPUT:
+**
+**      gckHARDWARE Hardware
+**          Pointer to an gckHARDWARE object.
+**
+**      gceFEATURE Feature
+**          Feature to be verified.
+*/
+gceSTATUS
+gckHARDWARE_IsFeatureAvailable(
+    IN gckHARDWARE Hardware,
+    IN gceFEATURE Feature
+    )
+{
+    gctBOOL available;
+
+    gcmkHEADER_ARG("Hardware=0x%x Feature=%d", Hardware, Feature);
+
+    /* Verify the arguments. */
+    gcmkVERIFY_OBJECT(Hardware, gcvOBJ_HARDWARE);
+
+    /* Only features needed by common kernel logic added here. */
+    switch (Feature)
+    {
+    case gcvFEATURE_END_EVENT:
+        /*available = gcmVERIFYFIELDVALUE(Hardware->identity.chipMinorFeatures2,
+            GC_MINOR_FEATURES2, END_EVENT, AVAILABLE
+            );*/
+        available = gcvFALSE;
+        break;
+
+    case gcvFEATURE_MC20:
+        available = ((((gctUINT32) (Hardware->identity.chipMinorFeatures)) >> (0 ? 22:22) & ((gctUINT32) ((((1 ? 22:22) - (0 ? 22:22) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 22:22) - (0 ? 22:22) + 1)))))) == (0x1  & ((gctUINT32) ((((1 ? 22:22) - (0 ? 22:22) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 22:22) - (0 ? 22:22) + 1)))))));
+        break;
+
+    case gcvFEATURE_EARLY_Z:
+        available = ((((gctUINT32) (Hardware->identity.chipFeatures)) >> (0 ? 16:16) & ((gctUINT32) ((((1 ? 16:16) - (0 ? 16:16) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 16:16) - (0 ? 16:16) + 1)))))) == (0x0 & ((gctUINT32) ((((1 ? 16:16) - (0 ? 16:16) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 16:16) - (0 ? 16:16) + 1)))))));
+        break;
+
+    case gcvFEATURE_HZ:
+        available = ((((gctUINT32) (Hardware->identity.chipMinorFeatures)) >> (0 ? 27:27) & ((gctUINT32) ((((1 ? 27:27) - (0 ? 27:27) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 27:27) - (0 ? 27:27) + 1)))))) == (0x1 & ((gctUINT32) ((((1 ? 27:27) - (0 ? 27:27) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 27:27) - (0 ? 27:27) + 1)))))));
+        break;
+
+    case gcvFEATURE_NEW_HZ:
+        available = ((((gctUINT32) (Hardware->identity.chipMinorFeatures3)) >> (0 ? 26:26) & ((gctUINT32) ((((1 ? 26:26) - (0 ? 26:26) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 26:26) - (0 ? 26:26) + 1)))))) == (0x1 & ((gctUINT32) ((((1 ? 26:26) - (0 ? 26:26) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 26:26) - (0 ? 26:26) + 1)))))));
+        break;
+
+    case gcvFEATURE_FAST_MSAA:
+        available = ((((gctUINT32) (Hardware->identity.chipMinorFeatures3)) >> (0 ? 8:8) & ((gctUINT32) ((((1 ? 8:8) - (0 ? 8:8) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 8:8) - (0 ? 8:8) + 1)))))) == (0x1 & ((gctUINT32) ((((1 ? 8:8) - (0 ? 8:8) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 8:8) - (0 ? 8:8) + 1)))))));
+        break;
+
+    case gcvFEATURE_SMALL_MSAA:
+        available = ((((gctUINT32) (Hardware->identity.chipMinorFeatures4)) >> (0 ? 18:18) & ((gctUINT32) ((((1 ? 18:18) - (0 ? 18:18) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 18:18) - (0 ? 18:18) + 1)))))) == (0x1 & ((gctUINT32) ((((1 ? 18:18) - (0 ? 18:18) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 18:18) - (0 ? 18:18) + 1)))))));
+        break;
+
+    case gcvFEATURE_DYNAMIC_FREQUENCY_SCALING:
+        /* This feature doesn't apply for 2D cores. */
+        available = ((((gctUINT32) (Hardware->identity.chipMinorFeatures2)) >> (0 ? 14:14) & ((gctUINT32) ((((1 ? 14:14) - (0 ? 14:14) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 14:14) - (0 ? 14:14) + 1)))))) == (0x1 & ((gctUINT32) ((((1 ? 14:14) - (0 ? 14:14) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 14:14) - (0 ? 14:14) + 1)))))))
+            &&      ((((gctUINT32) (Hardware->identity.chipFeatures)) >> (0 ? 2:2) & ((gctUINT32) ((((1 ? 2:2) - (0 ? 2:2) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 2:2) - (0 ? 2:2) + 1)))))) == (0x1 & ((gctUINT32) ((((1 ? 2:2) - (0 ? 2:2) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 2:2) - (0 ? 2:2) + 1)))))));
+
+        if (Hardware->identity.chipModel == gcv1000 &&
+            (Hardware->identity.chipRevision == 0x5039 ||
+            Hardware->identity.chipRevision == 0x5040))
+        {
+            available = gcvFALSE;
+        }
+        break;
+
+    case gcvFEATURE_ACE:
+        available = ((((gctUINT32) (Hardware->identity.chipMinorFeatures3)) >> (0 ? 18:18) & ((gctUINT32) ((((1 ? 18:18) - (0 ? 18:18) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 18:18) - (0 ? 18:18) + 1)))))) == (0x1 & ((gctUINT32) ((((1 ? 18:18) - (0 ? 18:18) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 18:18) - (0 ? 18:18) + 1)))))));
+        break;
+
+    case gcvFEATURE_HALTI2:
+        available = ((((gctUINT32) (Hardware->identity.chipMinorFeatures4)) >> (0 ? 16:16) & ((gctUINT32) ((((1 ? 16:16) - (0 ? 16:16) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 16:16) - (0 ? 16:16) + 1)))))) == (0x1 & ((gctUINT32) ((((1 ? 16:16) - (0 ? 16:16) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 16:16) - (0 ? 16:16) + 1)))))));
+        break;
+
+    case gcvFEATURE_PIPE_2D:
+        available = ((((gctUINT32) (Hardware->identity.chipFeatures)) >> (0 ? 9:9) & ((gctUINT32) ((((1 ? 9:9) - (0 ? 9:9) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 9:9) - (0 ? 9:9) + 1)))))) == (0x1  & ((gctUINT32) ((((1 ? 9:9) - (0 ? 9:9) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 9:9) - (0 ? 9:9) + 1)))))));
+        break;
+
+    case gcvFEATURE_PIPE_3D:
+        available = gcvFALSE;
+        break;
+
+    case gcvFEATURE_FC_FLUSH_STALL:
+        available = ((((gctUINT32) (Hardware->identity.chipMinorFeatures1)) >> (0 ? 31:31) & ((gctUINT32) ((((1 ? 31:31) - (0 ? 31:31) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 31:31) - (0 ? 31:31) + 1)))))) == (0x1 & ((gctUINT32) ((((1 ? 31:31) - (0 ? 31:31) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 31:31) - (0 ? 31:31) + 1)))))));
+        break;
+
+    case gcvFEATURE_TEX_CACHE_FLUSH_FIX:
+        available = ((((gctUINT32) (Hardware->identity.chipMinorFeatures5)) >> (0 ? 14:14) & ((gctUINT32) ((((1 ? 14:14) - (0 ? 14:14) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 14:14) - (0 ? 14:14) + 1)))))) == (0x1 & ((gctUINT32) ((((1 ? 14:14) - (0 ? 14:14) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 14:14) - (0 ? 14:14) + 1)))))));
+        break;
+
+    default:
+        gcmkFATAL("Invalid feature has been requested.");
+        available = gcvFALSE;
+    }
+
+    /* Return result. */
+    gcmkFOOTER_ARG("%d", available ? gcvSTATUS_TRUE : gcvSTATUS_FALSE);
+    return available ? gcvSTATUS_TRUE : gcvSTATUS_FALSE;
+}
+
+/*******************************************************************************
+**
+**  gckHARDWARE_DumpMMUException
+**
+**  Dump the MMU debug info on an MMU exception.
+**
+**  INPUT:
+**
+**      gckHARDWARE Harwdare
+**          Pointer to an gckHARDWARE object.
+**
+**  OUTPUT:
+**
+**      Nothing.
+*/
+gceSTATUS
+gckHARDWARE_DumpMMUException(
+    IN gckHARDWARE Hardware
+    )
+{
+    gctUINT32 mmu       = 0;
+    gctUINT32 mmuStatus = 0;
+    gctUINT32 address   = 0;
+    gctUINT32 i         = 0;
+    gctUINT32 mtlb      = 0;
+    gctUINT32 stlb      = 0;
+    gctUINT32 offset    = 0;
+#if gcdPROCESS_ADDRESS_SPACE
+    gcsDATABASE_PTR database;
+#endif
+
+    gcmkHEADER_ARG("Hardware=0x%x", Hardware);
+
+    /* Verify the arguments. */
+    gcmkVERIFY_OBJECT(Hardware, gcvOBJ_HARDWARE);
+
+    gcmkPRINT("GPU[%d](ChipModel=0x%x ChipRevision=0x%x):\n",
+              Hardware->core,
+              Hardware->identity.chipModel,
+              Hardware->identity.chipRevision);
+
+    gcmkPRINT("**************************\n");
+    gcmkPRINT("***   MMU ERROR DUMP   ***\n");
+    gcmkPRINT("**************************\n");
+
+    gcmkVERIFY_OK(
+        gckOS_ReadRegisterEx(Hardware->os,
+                             Hardware->core,
+                             0x00188,
+                             &mmuStatus));
+
+    gcmkPRINT("  MMU status = 0x%08X\n", mmuStatus);
+
+    for (i = 0; i < 4; i += 1)
+    {
+        mmu = mmuStatus & 0xF;
+        mmuStatus >>= 4;
+
+        if (mmu == 0)
+        {
+            continue;
+        }
+
+        switch (mmu)
+        {
+        case 1:
+              gcmkPRINT("  MMU%d: slave not present\n", i);
+              break;
+
+        case 2:
+              gcmkPRINT("  MMU%d: page not present\n", i);
+              break;
+
+        case 3:
+              gcmkPRINT("  MMU%d: write violation\n", i);
+              break;
+
+        default:
+              gcmkPRINT("  MMU%d: unknown state\n", i);
+        }
+
+        gcmkVERIFY_OK(
+            gckOS_ReadRegisterEx(Hardware->os,
+                                 Hardware->core,
+                                 0x00190 + i * 4,
+                                 &address));
+
+        mtlb   = (address & gcdMMU_MTLB_MASK) >> gcdMMU_MTLB_SHIFT;
+        stlb   = (address & gcdMMU_STLB_4K_MASK) >> gcdMMU_STLB_4K_SHIFT;
+        offset =  address & gcdMMU_OFFSET_4K_MASK;
+
+        gcmkPRINT("  MMU%d: exception address = 0x%08X\n", i, address);
+
+        gcmkPRINT("    MTLB entry = %d\n", mtlb);
+
+        gcmkPRINT("    STLB entry = %d\n", stlb);
+
+        gcmkPRINT("    Offset = 0x%08X (%d)\n", offset, offset);
+
+        gckMMU_DumpPageTableEntry(Hardware->kernel->mmu, address);
+
+#if gcdPROCESS_ADDRESS_SPACE
+        for (i = 0; i < gcmCOUNTOF(Hardware->kernel->db->db); ++i)
+        {
+            for (database = Hardware->kernel->db->db[i];
+                    database != gcvNULL;
+                    database = database->next)
+            {
+                gcmkPRINT("    database [%d] :", database->processID);
+                gckMMU_DumpPageTableEntry(database->mmu, address);
+            }
+        }
+#endif
+    }
+
+    gcmkFOOTER_NO();
+    return gcvSTATUS_OK;
+}
+
+/*******************************************************************************
+**
+**  gckHARDWARE_DumpGPUState
+**
+**  Dump the GPU debug registers.
+**
+**  INPUT:
+**
+**      gckHARDWARE Harwdare
+**          Pointer to an gckHARDWARE object.
+**
+**  OUTPUT:
+**
+**      Nothing.
+*/
+gceSTATUS
+gckHARDWARE_DumpGPUState(
+    IN gckHARDWARE Hardware
+    )
+{
+    static gctCONST_STRING _cmdState[] =
+    {
+        "PAR_IDLE_ST", "PAR_DEC_ST", "PAR_ADR0_ST", "PAR_LOAD0_ST",
+        "PAR_ADR1_ST", "PAR_LOAD1_ST", "PAR_3DADR_ST", "PAR_3DCMD_ST",
+        "PAR_3DCNTL_ST", "PAR_3DIDXCNTL_ST", "PAR_INITREQDMA_ST",
+        "PAR_DRAWIDX_ST", "PAR_DRAW_ST", "PAR_2DRECT0_ST", "PAR_2DRECT1_ST",
+        "PAR_2DDATA0_ST", "PAR_2DDATA1_ST", "PAR_WAITFIFO_ST", "PAR_WAIT_ST",
+        "PAR_LINK_ST", "PAR_END_ST", "PAR_STALL_ST"
+    };
+
+    static gctCONST_STRING _cmdDmaState[] =
+    {
+        "CMD_IDLE_ST", "CMD_START_ST", "CMD_REQ_ST", "CMD_END_ST"
+    };
+
+    static gctCONST_STRING _cmdFetState[] =
+    {
+        "FET_IDLE_ST", "FET_RAMVALID_ST", "FET_VALID_ST"
+    };
+
+    static gctCONST_STRING _reqDmaState[] =
+    {
+        "REQ_IDLE_ST", "REQ_WAITIDX_ST", "REQ_CAL_ST"
+    };
+
+    static gctCONST_STRING _calState[] =
+    {
+        "CAL_IDLE_ST", "CAL_LDADR_ST", "CAL_IDXCALC_ST"
+    };
+
+    static gctCONST_STRING _veReqState[] =
+    {
+        "VER_IDLE_ST", "VER_CKCACHE_ST", "VER_MISS_ST"
+    };
+
+    static gcsiDEBUG_REGISTERS _dbgRegs[] =
+    {
+        { "RA", 0x474, 16, 0x448, 32, 0x12344321 },
+        { "TX", 0x474, 24, 0x44C, 32, 0x12211221 },
+        { "FE", 0x470, 0, 0x450, 32, 0xBABEF00D },
+        { "PE", 0x470, 16, 0x454, 48, 0xBABEF00D },
+        { "DE", 0x470, 8, 0x458, 32, 0xBABEF00D },
+        { "SH", 0x470, 24, 0x45C, 32, 0xDEADBEEF },
+        { "PA", 0x474, 0, 0x460, 32, 0x0000AAAA },
+        { "SE", 0x474, 8, 0x464, 32, 0x5E5E5E5E },
+        { "MC", 0x478, 0, 0x468, 32, 0x12345678 },
+        { "HI", 0x478, 8, 0x46C, 32, 0xAAAAAAAA }
+    };
+
+    static gctUINT32 _otherRegs[] =
+    {
+        0x040, 0x044, 0x04C, 0x050, 0x054, 0x058, 0x05C, 0x060,
+        0x43c, 0x440, 0x444, 0x414,
+    };
+
+    gceSTATUS status;
+    gckKERNEL kernel = gcvNULL;
+    gctUINT32 idle = 0, axi = 0;
+    gctUINT32 dmaAddress1 = 0, dmaAddress2 = 0;
+    gctUINT32 dmaState1 = 0, dmaState2 = 0;
+    gctUINT32 dmaLow = 0, dmaHigh = 0;
+    gctUINT32 cmdState = 0, cmdDmaState = 0, cmdFetState = 0;
+    gctUINT32 dmaReqState = 0, calState = 0, veReqState = 0;
+    gctUINT i;
+    gctUINT pipe = 0, pixelPipes = 0;
+    gctUINT32 control = 0, oldControl = 0;
+    gckOS os = Hardware->os;
+    gceCORE core = Hardware->core;
+
+    gcmkHEADER_ARG("Hardware=0x%X", Hardware);
+
+    kernel = Hardware->kernel;
+
+    gcmkPRINT_N(12, "GPU[%d](ChipModel=0x%x ChipRevision=0x%x):\n",
+                core,
+                Hardware->identity.chipModel,
+                Hardware->identity.chipRevision);
+
+    pixelPipes = Hardware->identity.pixelPipes
+               ? Hardware->identity.pixelPipes
+               : 1;
+
+    /* Reset register values. */
+    idle        = axi         =
+    dmaState1   = dmaState2   =
+    dmaAddress1 = dmaAddress2 =
+    dmaLow      = dmaHigh     = 0;
+
+    /* Verify whether DMA is running. */
+    gcmkONERROR(_VerifyDMA(
+        os, core, &dmaAddress1, &dmaAddress2, &dmaState1, &dmaState2
+        ));
+
+    cmdState    =  dmaState2        & 0x1F;
+    cmdDmaState = (dmaState2 >>  8) & 0x03;
+    cmdFetState = (dmaState2 >> 10) & 0x03;
+    dmaReqState = (dmaState2 >> 12) & 0x03;
+    calState    = (dmaState2 >> 14) & 0x03;
+    veReqState  = (dmaState2 >> 16) & 0x03;
+
+    gcmkONERROR(gckOS_ReadRegisterEx(os, core, 0x004, &idle));
+    gcmkONERROR(gckOS_ReadRegisterEx(os, core, 0x00C, &axi));
+    gcmkONERROR(gckOS_ReadRegisterEx(os, core, 0x668, &dmaLow));
+    gcmkONERROR(gckOS_ReadRegisterEx(os, core, 0x66C, &dmaHigh));
+
+    gcmkPRINT_N(0, "**************************\n");
+    gcmkPRINT_N(0, "***   GPU STATE DUMP   ***\n");
+    gcmkPRINT_N(0, "**************************\n");
+
+    gcmkPRINT_N(4, "  axi      = 0x%08X\n", axi);
+
+    gcmkPRINT_N(4, "  idle     = 0x%08X\n", idle);
+    if ((idle & 0x00000001) == 0) gcmkPRINT_N(0, "    FE not idle\n");
+    if ((idle & 0x00000002) == 0) gcmkPRINT_N(0, "    DE not idle\n");
+    if ((idle & 0x00000004) == 0) gcmkPRINT_N(0, "    PE not idle\n");
+    if ((idle & 0x00000008) == 0) gcmkPRINT_N(0, "    SH not idle\n");
+    if ((idle & 0x00000010) == 0) gcmkPRINT_N(0, "    PA not idle\n");
+    if ((idle & 0x00000020) == 0) gcmkPRINT_N(0, "    SE not idle\n");
+    if ((idle & 0x00000040) == 0) gcmkPRINT_N(0, "    RA not idle\n");
+    if ((idle & 0x00000080) == 0) gcmkPRINT_N(0, "    TX not idle\n");
+    if ((idle & 0x00000100) == 0) gcmkPRINT_N(0, "    VG not idle\n");
+    if ((idle & 0x00000200) == 0) gcmkPRINT_N(0, "    IM not idle\n");
+    if ((idle & 0x00000400) == 0) gcmkPRINT_N(0, "    FP not idle\n");
+    if ((idle & 0x00000800) == 0) gcmkPRINT_N(0, "    TS not idle\n");
+    if ((idle & 0x80000000) != 0) gcmkPRINT_N(0, "    AXI low power mode\n");
+
+    if (
+        (dmaAddress1 == dmaAddress2)
+     && (dmaState1 == dmaState2)
+    )
+    {
+        gcmkPRINT_N(0, "  DMA appears to be stuck at this address:\n");
+        gcmkPRINT_N(4, "    0x%08X\n", dmaAddress1);
+    }
+    else
+    {
+        if (dmaAddress1 == dmaAddress2)
+        {
+            gcmkPRINT_N(0, "  DMA address is constant, but state is changing:\n");
+            gcmkPRINT_N(4, "    0x%08X\n", dmaState1);
+            gcmkPRINT_N(4, "    0x%08X\n", dmaState2);
+        }
+        else
+        {
+            gcmkPRINT_N(0, "  DMA is running; known addresses are:\n");
+            gcmkPRINT_N(4, "    0x%08X\n", dmaAddress1);
+            gcmkPRINT_N(4, "    0x%08X\n", dmaAddress2);
+        }
+    }
+
+    gcmkPRINT_N(4, "  dmaLow   = 0x%08X\n", dmaLow);
+    gcmkPRINT_N(4, "  dmaHigh  = 0x%08X\n", dmaHigh);
+    gcmkPRINT_N(4, "  dmaState = 0x%08X\n", dmaState2);
+    gcmkPRINT_N(8, "    command state       = %d (%s)\n", cmdState, _cmdState   [cmdState]);
+    gcmkPRINT_N(8, "    command DMA state   = %d (%s)\n", cmdDmaState, _cmdDmaState[cmdDmaState]);
+    gcmkPRINT_N(8, "    command fetch state = %d (%s)\n", cmdFetState, _cmdFetState[cmdFetState]);
+    gcmkPRINT_N(8, "    DMA request state   = %d (%s)\n", dmaReqState, _reqDmaState[dmaReqState]);
+    gcmkPRINT_N(8, "    cal state           = %d (%s)\n", calState, _calState   [calState]);
+    gcmkPRINT_N(8, "    VE request state    = %d (%s)\n", veReqState, _veReqState [veReqState]);
+
+    /* Record control. */
+    gckOS_ReadRegisterEx(os, core, 0x0, &oldControl);
+
+    for (pipe = 0; pipe < pixelPipes; pipe++)
+    {
+        gcmkPRINT_N(4, "  Debug registers of pipe[%d]:\n", pipe);
+
+        /* Switch pipe. */
+        gcmkONERROR(gckOS_ReadRegisterEx(os, core, 0x0, &control));
+        control &= ~(0xF << 20);
+        control |= (pipe << 20);
+        gcmkONERROR(gckOS_WriteRegisterEx(os, core, 0x0, control));
+
+        for (i = 0; i < gcmCOUNTOF(_dbgRegs); i += 1)
+        {
+            gcmkONERROR(_DumpDebugRegisters(os, core, &_dbgRegs[i]));
+        }
+
+        gcmkPRINT_N(0, "    Other Registers:\n");
+        for (i = 0; i < gcmCOUNTOF(_otherRegs); i += 1)
+        {
+            gctUINT32 read;
+            gcmkONERROR(gckOS_ReadRegisterEx(os, core, _otherRegs[i], &read));
+            gcmkPRINT_N(12, "      [0x%04X] 0x%08X\n", _otherRegs[i], read);
+        }
+
+        if (Hardware->mmuVersion)
+        {
+            gcmkPRINT("    MMU status from MC[%d]:", pipe);
+
+            gckHARDWARE_DumpMMUException(Hardware);
+        }
+    }
+
+    if (kernel->hardware->identity.chipFeatures & (1 << 4))
+    {
+        gctUINT32 read0, read1, write;
+
+        read0 = read1 = write = 0;
+
+        gcmkONERROR(gckOS_ReadRegisterEx(os, core, 0x43C, &read0));
+        gcmkONERROR(gckOS_ReadRegisterEx(os, core, 0x440, &read1));
+        gcmkONERROR(gckOS_ReadRegisterEx(os, core, 0x444, &write));
+
+        gcmkPRINT_N(4, "  read0    = 0x%08X\n", read0);
+        gcmkPRINT_N(4, "  read1    = 0x%08X\n", read1);
+        gcmkPRINT_N(4, "  write    = 0x%08X\n", write);
+    }
+
+    /* Restore control. */
+    gcmkONERROR(gckOS_WriteRegisterEx(os, core, 0x0, oldControl));
+
+    gcmkPRINT_N(0, "**************************\n");
+    gcmkPRINT_N(0, "*****   SW COUNTERS  *****\n");
+    gcmkPRINT_N(0, "**************************\n");
+    gcmkPRINT_N(4, "    Execute Count = 0x%08X\n", Hardware->executeCount);
+    gcmkPRINT_N(4, "    Execute Addr  = 0x%08X\n", Hardware->lastExecuteAddress);
+    gcmkPRINT_N(4, "    End     Addr  = 0x%08X\n", Hardware->lastEnd);
+
+    /* dump stack. */
+    gckOS_DumpCallStack(os);
+
+OnError:
+
+    /* Return the error. */
+    gcmkFOOTER();
+    return status;
+}
+
+static gceSTATUS
+gckHARDWARE_ReadPerformanceRegister(
+    IN gckHARDWARE Hardware,
+    IN gctUINT PerformanceAddress,
+    IN gctUINT IndexAddress,
+    IN gctUINT IndexShift,
+    IN gctUINT Index,
+    OUT gctUINT32_PTR Value
+    )
+{
+    gceSTATUS status;
+
+    gcmkHEADER_ARG("Hardware=0x%x PerformanceAddress=0x%x IndexAddress=0x%x "
+                   "IndexShift=%u Index=%u",
+                   Hardware, PerformanceAddress, IndexAddress, IndexShift,
+                   Index);
+
+    /* Write the index. */
+    gcmkONERROR(gckOS_WriteRegisterEx(Hardware->os,
+                                      Hardware->core,
+                                      IndexAddress,
+                                      Index << IndexShift));
+
+    /* Read the register. */
+    gcmkONERROR(gckOS_ReadRegisterEx(Hardware->os,
+                                     Hardware->core,
+                                     PerformanceAddress,
+                                     Value));
+
+    /* Test for reset. */
+    if (Index == 15)
+    {
+        /* Index another register to get out of reset. */
+        gcmkONERROR(gckOS_WriteRegisterEx(Hardware->os, Hardware->core, IndexAddress, 0));
+    }
+
+    /* Success. */
+    gcmkFOOTER_ARG("*Value=0x%x", *Value);
+    return gcvSTATUS_OK;
+
+OnError:
+    /* Return the status. */
+    gcmkFOOTER();
+    return status;
+}
+
+gceSTATUS
+gckHARDWARE_GetFrameInfo(
+    IN gckHARDWARE Hardware,
+    OUT gcsHAL_FRAME_INFO * FrameInfo
+    )
+{
+    gceSTATUS status;
+    gctUINT i, clock;
+    gcsHAL_FRAME_INFO info;
+#if gcdFRAME_DB_RESET
+    gctUINT reset;
+#endif
+
+    gcmkHEADER_ARG("Hardware=0x%x", Hardware);
+
+    /* Get profile tick. */
+    gcmkONERROR(gckOS_GetProfileTick(&info.ticks));
+
+    /* Read SH counters and reset them. */
+    gcmkONERROR(gckHARDWARE_ReadPerformanceRegister(
+        Hardware,
+        0x0045C,
+        0x00470,
+        24,
+        4,
+        &info.shaderCycles));
+    gcmkONERROR(gckHARDWARE_ReadPerformanceRegister(
+        Hardware,
+        0x0045C,
+        0x00470,
+        24,
+        9,
+        &info.vsInstructionCount));
+    gcmkONERROR(gckHARDWARE_ReadPerformanceRegister(
+        Hardware,
+        0x0045C,
+        0x00470,
+        24,
+        12,
+        &info.vsTextureCount));
+    gcmkONERROR(gckHARDWARE_ReadPerformanceRegister(
+        Hardware,
+        0x0045C,
+        0x00470,
+        24,
+        7,
+        &info.psInstructionCount));
+    gcmkONERROR(gckHARDWARE_ReadPerformanceRegister(
+        Hardware,
+        0x0045C,
+        0x00470,
+        24,
+        14,
+        &info.psTextureCount));
+#if gcdFRAME_DB_RESET
+    gcmkONERROR(gckHARDWARE_ReadPerformanceRegister(
+        Hardware,
+        0x0045C,
+        0x00470,
+        24,
+        15,
+        &reset));
+#endif
+
+    /* Read PA counters and reset them. */
+    gcmkONERROR(gckHARDWARE_ReadPerformanceRegister(
+        Hardware,
+        0x00460,
+        0x00474,
+        0,
+        3,
+        &info.vertexCount));
+    gcmkONERROR(gckHARDWARE_ReadPerformanceRegister(
+        Hardware,
+        0x00460,
+        0x00474,
+        0,
+        4,
+        &info.primitiveCount));
+    gcmkONERROR(gckHARDWARE_ReadPerformanceRegister(
+        Hardware,
+        0x00460,
+        0x00474,
+        0,
+        7,
+        &info.rejectedPrimitives));
+    gcmkONERROR(gckHARDWARE_ReadPerformanceRegister(
+        Hardware,
+        0x00460,
+        0x00474,
+        0,
+        8,
+        &info.culledPrimitives));
+    gcmkONERROR(gckHARDWARE_ReadPerformanceRegister(
+        Hardware,
+        0x00460,
+        0x00474,
+        0,
+        6,
+        &info.clippedPrimitives));
+    gcmkONERROR(gckHARDWARE_ReadPerformanceRegister(
+        Hardware,
+        0x00460,
+        0x00474,
+        0,
+        5,
+        &info.outPrimitives));
+#if gcdFRAME_DB_RESET
+    gcmkONERROR(gckHARDWARE_ReadPerformanceRegister(
+        Hardware,
+        0x00460,
+        0x00474,
+        0,
+        15,
+        &reset));
+#endif
+
+    /* Read RA counters and reset them. */
+    gcmkONERROR(gckHARDWARE_ReadPerformanceRegister(
+        Hardware,
+        0x00448,
+        0x00474,
+        16,
+        3,
+        &info.inPrimitives));
+    gcmkONERROR(gckHARDWARE_ReadPerformanceRegister(
+        Hardware,
+        0x00448,
+        0x00474,
+        16,
+        11,
+        &info.culledQuadCount));
+    gcmkONERROR(gckHARDWARE_ReadPerformanceRegister(
+        Hardware,
+        0x00448,
+        0x00474,
+        16,
+        1,
+        &info.totalQuadCount));
+    gcmkONERROR(gckHARDWARE_ReadPerformanceRegister(
+        Hardware,
+        0x00448,
+        0x00474,
+        16,
+        2,
+        &info.quadCount));
+    gcmkONERROR(gckHARDWARE_ReadPerformanceRegister(
+        Hardware,
+        0x00448,
+        0x00474,
+        16,
+        0,
+        &info.totalPixelCount));
+#if gcdFRAME_DB_RESET
+    gcmkONERROR(gckHARDWARE_ReadPerformanceRegister(
+        Hardware,
+        0x00448,
+        0x00474,
+        16,
+        15,
+        &reset));
+#endif
+
+    /* Read TX counters and reset them. */
+    gcmkONERROR(gckHARDWARE_ReadPerformanceRegister(
+        Hardware,
+        0x0044C,
+        0x00474,
+        24,
+        0,
+        &info.bilinearRequests));
+    gcmkONERROR(gckHARDWARE_ReadPerformanceRegister(
+        Hardware,
+        0x0044C,
+        0x00474,
+        24,
+        1,
+        &info.trilinearRequests));
+    gcmkONERROR(gckHARDWARE_ReadPerformanceRegister(
+        Hardware,
+        0x0044C,
+        0x00474,
+        24,
+        8,
+        &info.txHitCount));
+    gcmkONERROR(gckHARDWARE_ReadPerformanceRegister(
+        Hardware,
+        0x0044C,
+        0x00474,
+        24,
+        9,
+        &info.txMissCount));
+    gcmkONERROR(gckHARDWARE_ReadPerformanceRegister(
+        Hardware,
+        0x0044C,
+        0x00474,
+        24,
+        6,
+        &info.txBytes8));
+#if gcdFRAME_DB_RESET
+    gcmkONERROR(gckHARDWARE_ReadPerformanceRegister(
+        Hardware,
+        0x0044C,
+        0x00474,
+        24,
+        15,
+        &reset));
+#endif
+
+    /* Read clock control register. */
+    gcmkONERROR(gckOS_ReadRegisterEx(Hardware->os,
+                                     Hardware->core,
+                                     0x00000,
+                                     &clock));
+
+    /* Walk through all avaiable pixel pipes. */
+    for (i = 0; i < Hardware->identity.pixelPipes; ++i)
+    {
+        /* Select proper pipe. */
+        gcmkONERROR(gckOS_WriteRegisterEx(Hardware->os,
+                                          Hardware->core,
+                                          0x00000,
+                                          ((((gctUINT32) (clock)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 23:20) - (0 ? 23:20) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 23:20) - (0 ? 23:20) + 1))))))) << (0 ? 23:20))) | (((gctUINT32) ((gctUINT32) (i) & ((gctUINT32) ((((1 ? 23:20) - (0 ? 23:20) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 23:20) - (0 ? 23:20) + 1))))))) << (0 ? 23:20)))));
+
+        /* Read cycle registers. */
+        gcmkONERROR(gckOS_ReadRegisterEx(Hardware->os,
+                                         Hardware->core,
+                                         0x00078,
+                                         &info.cycles[i]));
+        gcmkONERROR(gckOS_ReadRegisterEx(Hardware->os,
+                                         Hardware->core,
+                                         0x0007C,
+                                         &info.idleCycles[i]));
+        gcmkONERROR(gckOS_ReadRegisterEx(Hardware->os,
+                                         Hardware->core,
+                                         0x00438,
+                                         &info.mcCycles[i]));
+
+        /* Read bandwidth registers. */
+        gcmkONERROR(gckOS_ReadRegisterEx(Hardware->os,
+                                         Hardware->core,
+                                         0x0005C,
+                                         &info.readRequests[i]));
+        gcmkONERROR(gckOS_ReadRegisterEx(Hardware->os,
+                                         Hardware->core,
+                                         0x00040,
+                                         &info.readBytes8[i]));
+        gcmkONERROR(gckOS_ReadRegisterEx(Hardware->os,
+                                         Hardware->core,
+                                         0x00050,
+                                         &info.writeRequests[i]));
+        gcmkONERROR(gckOS_ReadRegisterEx(Hardware->os,
+                                         Hardware->core,
+                                         0x00044,
+                                         &info.writeBytes8[i]));
+
+        /* Read PE counters. */
+        gcmkONERROR(gckHARDWARE_ReadPerformanceRegister(
+            Hardware,
+            0x00454,
+            0x00470,
+            16,
+            0,
+            &info.colorKilled[i]));
+        gcmkONERROR(gckHARDWARE_ReadPerformanceRegister(
+            Hardware,
+            0x00454,
+            0x00470,
+            16,
+            2,
+            &info.colorDrawn[i]));
+        gcmkONERROR(gckHARDWARE_ReadPerformanceRegister(
+            Hardware,
+            0x00454,
+            0x00470,
+            16,
+            1,
+            &info.depthKilled[i]));
+        gcmkONERROR(gckHARDWARE_ReadPerformanceRegister(
+            Hardware,
+            0x00454,
+            0x00470,
+            16,
+            3,
+            &info.depthDrawn[i]));
+    }
+
+    /* Zero out remaning reserved counters. */
+    for (; i < 8; ++i)
+    {
+        info.readBytes8[i]    = 0;
+        info.writeBytes8[i]   = 0;
+        info.cycles[i]        = 0;
+        info.idleCycles[i]    = 0;
+        info.mcCycles[i]      = 0;
+        info.readRequests[i]  = 0;
+        info.writeRequests[i] = 0;
+        info.colorKilled[i]   = 0;
+        info.colorDrawn[i]    = 0;
+        info.depthKilled[i]   = 0;
+        info.depthDrawn[i]    = 0;
+    }
+
+    /* Reset clock control register. */
+    gcmkONERROR(gckOS_WriteRegisterEx(Hardware->os,
+                                      Hardware->core,
+                                      0x00000,
+                                      clock));
+
+    /* Reset cycle and bandwidth counters. */
+    gcmkONERROR(gckOS_WriteRegisterEx(Hardware->os,
+                                      Hardware->core,
+                                      0x0003C,
+                                      1));
+    gcmkONERROR(gckOS_WriteRegisterEx(Hardware->os,
+                                      Hardware->core,
+                                      0x0003C,
+                                      0));
+    gcmkONERROR(gckOS_WriteRegisterEx(Hardware->os,
+                                      Hardware->core,
+                                      0x00078,
+                                      0));
+
+#if gcdFRAME_DB_RESET
+    /* Reset PE counters. */
+    gcmkONERROR(gckHARDWARE_ReadPerformanceRegister(
+        Hardware,
+        0x00454,
+        0x00470,
+        16,
+        15,
+        &reset));
+#endif
+
+    /* Copy to user. */
+    gcmkONERROR(gckOS_CopyToUserData(Hardware->os,
+                                     &info,
+                                     FrameInfo,
+                                     gcmSIZEOF(info)));
+
+    /* Success. */
+    gcmkFOOTER_NO();
+    return gcvSTATUS_OK;
+
+OnError:
+    /* Return the status. */
+    gcmkFOOTER();
+    return status;
+}
+
+#if gcdDVFS
+#define READ_FROM_EATER1 0
+
+gceSTATUS
+gckHARDWARE_QueryLoad(
+    IN gckHARDWARE Hardware,
+    OUT gctUINT32 * Load
+    )
+{
+    gctUINT32 debug1;
+    gceSTATUS status;
+    gcmkHEADER_ARG("Hardware=0x%X", Hardware);
+
+    gcmkVERIFY_OBJECT(Hardware, gcvOBJ_HARDWARE);
+    gcmkVERIFY_ARGUMENT(Load != gcvNULL);
+
+    gckOS_AcquireMutex(Hardware->os, Hardware->powerMutex, gcvINFINITE);
+
+    if (Hardware->chipPowerState == gcvPOWER_ON)
+    {
+        gcmkONERROR(gckOS_ReadRegisterEx(Hardware->os,
+                                         Hardware->core,
+                                         0x00110,
+                                         Load));
+#if READ_FROM_EATER1
+        gcmkONERROR(gckOS_ReadRegisterEx(Hardware->os,
+                                         Hardware->core,
+                                         0x00134,
+                                         Load));
+#endif
+
+        gcmkONERROR(gckOS_ReadRegisterEx(Hardware->os,
+                                         Hardware->core,
+                                         0x00114,
+                                         &debug1));
+
+        /* Patch result of 0x110 with result of 0x114. */
+        if ((debug1 & 0xFF) == 1)
+        {
+            *Load &= ~0xFF;
+            *Load |= 1;
+        }
+
+        if (((debug1 & 0xFF00) >> 8) == 1)
+        {
+            *Load &= ~(0xFF << 8);
+            *Load |= 1 << 8;
+        }
+
+        if (((debug1 & 0xFF0000) >> 16) == 1)
+        {
+            *Load &= ~(0xFF << 16);
+            *Load |= 1 << 16;
+        }
+
+        if (((debug1 & 0xFF000000) >> 24) == 1)
+        {
+            *Load &= ~(0xFF << 24);
+            *Load |= 1 << 24;
+        }
+    }
+    else
+    {
+        status = gcvSTATUS_INVALID_REQUEST;
+    }
+
+OnError:
+
+    gckOS_ReleaseMutex(Hardware->os, Hardware->powerMutex);
+
+    gcmkFOOTER();
+    return status;
+}
+
+gceSTATUS
+gckHARDWARE_SetDVFSPeroid(
+    IN gckHARDWARE Hardware,
+    OUT gctUINT32 Frequency
+    )
+{
+    gceSTATUS status;
+    gctUINT32 period;
+    gctUINT32 eater;
+
+#if READ_FROM_EATER1
+    gctUINT32 period1;
+    gctUINT32 eater1;
+#endif
+
+    gcmkHEADER_ARG("Hardware=0x%X Frequency=%d", Hardware, Frequency);
+
+    gcmkVERIFY_OBJECT(Hardware, gcvOBJ_HARDWARE);
+
+    period = 0;
+
+    while((64 << period) < (gcdDVFS_ANAYLSE_WINDOW * Frequency * 1000) )
+    {
+        period++;
+    }
+
+#if READ_FROM_EATER1
+    /*
+    *  Peroid = F * 1000 * 1000 / (60 * 16 * 1024);
+    */
+    period1 = Frequency * 6250 / 6114;
+#endif
+
+    gckOS_AcquireMutex(Hardware->os, Hardware->powerMutex, gcvINFINITE);
+
+    if (Hardware->chipPowerState == gcvPOWER_ON)
+    {
+        /* Get current configure. */
+        gcmkONERROR(gckOS_ReadRegisterEx(Hardware->os,
+                                         Hardware->core,
+                                         0x0010C,
+                                         &eater));
+
+        /* Change peroid. */
+        gcmkONERROR(gckOS_WriteRegisterEx(Hardware->os,
+                                          Hardware->core,
+                                          0x0010C,
+                                          ((((gctUINT32) (eater)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 15:8) - (0 ? 15:8) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 15:8) - (0 ? 15:8) + 1))))))) << (0 ? 15:8))) | (((gctUINT32) ((gctUINT32) (period) & ((gctUINT32) ((((1 ? 15:8) - (0 ? 15:8) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 15:8) - (0 ? 15:8) + 1))))))) << (0 ? 15:8)))));
+
+#if READ_FROM_EATER1
+        /* Config eater1. */
+        gcmkONERROR(gckOS_ReadRegisterEx(Hardware->os,
+                                         Hardware->core,
+                                         0x00130,
+                                         &eater1));
+
+        gcmkONERROR(gckOS_WriteRegisterEx(Hardware->os,
+                                          Hardware->core,
+                                          0x00130,
+                                          ((((gctUINT32) (eater1)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 31:16) - (0 ? 31:16) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 31:16) - (0 ? 31:16) + 1))))))) << (0 ? 31:16))) | (((gctUINT32) ((gctUINT32) (period1) & ((gctUINT32) ((((1 ? 31:16) - (0 ? 31:16) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 31:16) - (0 ? 31:16) + 1))))))) << (0 ? 31:16)))));
+#endif
+    }
+    else
+    {
+        status = gcvSTATUS_INVALID_REQUEST;
+    }
+
+OnError:
+    gckOS_ReleaseMutex(Hardware->os, Hardware->powerMutex);
+
+    gcmkFOOTER();
+    return status;
+}
+
+gceSTATUS
+gckHARDWARE_InitDVFS(
+    IN gckHARDWARE Hardware
+    )
+{
+    gceSTATUS status;
+    gctUINT32 data;
+
+    gcmkHEADER_ARG("Hardware=0x%X", Hardware);
+
+    gcmkVERIFY_OBJECT(Hardware, gcvOBJ_HARDWARE);
+
+    gcmkONERROR(gckOS_ReadRegisterEx(Hardware->os,
+                                     Hardware->core,
+                                     0x0010C,
+                                     &data));
+
+    data = ((((gctUINT32) (data)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 16:16) - (0 ? 16:16) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 16:16) - (0 ? 16:16) + 1))))))) << (0 ? 16:16))) | (((gctUINT32) ((gctUINT32) (1) & ((gctUINT32) ((((1 ? 16:16) - (0 ? 16:16) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 16:16) - (0 ? 16:16) + 1))))))) << (0 ? 16:16)));
+    data = ((((gctUINT32) (data)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 18:18) - (0 ? 18:18) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 18:18) - (0 ? 18:18) + 1))))))) << (0 ? 18:18))) | (((gctUINT32) ((gctUINT32) (1) & ((gctUINT32) ((((1 ? 18:18) - (0 ? 18:18) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 18:18) - (0 ? 18:18) + 1))))))) << (0 ? 18:18)));
+    data = ((((gctUINT32) (data)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 19:19) - (0 ? 19:19) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 19:19) - (0 ? 19:19) + 1))))))) << (0 ? 19:19))) | (((gctUINT32) ((gctUINT32) (0) & ((gctUINT32) ((((1 ? 19:19) - (0 ? 19:19) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 19:19) - (0 ? 19:19) + 1))))))) << (0 ? 19:19)));
+    data = ((((gctUINT32) (data)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 20:20) - (0 ? 20:20) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 20:20) - (0 ? 20:20) + 1))))))) << (0 ? 20:20))) | (((gctUINT32) ((gctUINT32) (1) & ((gctUINT32) ((((1 ? 20:20) - (0 ? 20:20) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 20:20) - (0 ? 20:20) + 1))))))) << (0 ? 20:20)));
+    data = ((((gctUINT32) (data)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 23:23) - (0 ? 23:23) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 23:23) - (0 ? 23:23) + 1))))))) << (0 ? 23:23))) | (((gctUINT32) ((gctUINT32) (1) & ((gctUINT32) ((((1 ? 23:23) - (0 ? 23:23) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 23:23) - (0 ? 23:23) + 1))))))) << (0 ? 23:23)));
+    data = ((((gctUINT32) (data)) & ~(((gctUINT32) (((gctUINT32) ((((1 ? 22:22) - (0 ? 22:22) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 22:22) - (0 ? 22:22) + 1))))))) << (0 ? 22:22))) | (((gctUINT32) ((gctUINT32) (0) & ((gctUINT32) ((((1 ? 22:22) - (0 ? 22:22) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 22:22) - (0 ? 22:22) + 1))))))) << (0 ? 22:22)));
+
+    gcmkTRACE_ZONE(gcvLEVEL_INFO, gcvZONE_HARDWARE,
+                   "DVFS Configure=0x%X",
+                   data);
+
+    gcmkONERROR(gckOS_WriteRegisterEx(Hardware->os,
+                                      Hardware->core,
+                                      0x0010C,
+                                      data));
+
+    gcmkFOOTER_NO();
+    return gcvSTATUS_OK;
+
+OnError:
+    gcmkFOOTER();
+    return status;
+}
+#endif
+
+/*******************************************************************************
+**
+**  gckHARDWARE_PrepareFunctions
+**
+**  Generate command buffer snippets which will be used by gckHARDWARE, by which
+**  gckHARDWARE can manipulate GPU by FE command without using gckCOMMAND to avoid
+**  race condition and deadlock.
+**
+**  Notice:
+**  1. Each snippet can only be executed when GPU is idle.
+**  2. Execution is triggered by AHB (0x658)
+**  3. Each snippet followed by END so software can sync with GPU by checking GPU
+**     idle
+**  4. It is transparent to gckCOMMAND command buffer.
+**
+**  Existing Snippets:
+**  1. MMU Configure
+**     For new MMU, after GPU is reset, FE execute this command sequence to enble MMU.
+*/
+gceSTATUS
+gckHARDWARE_PrepareFunctions(
+    gckHARDWARE Hardware
+    )
+{
+    gceSTATUS status;
+    gckOS os;
+    gctUINT32 offset = 0;
+    gctUINT32 mmuBytes;
+    gctUINT32 endBytes;
+    gctUINT8_PTR logical;
+    gctPHYS_ADDR_T physical;
+
+    gcmkHEADER_ARG("%x", Hardware);
+
+    os = Hardware->os;
+
+    gcmkVERIFY_OK(gckOS_GetPageSize(os, &Hardware->functionBytes));
+
+    /* Allocate a command buffer. */
+    gcmkONERROR(gckOS_AllocateNonPagedMemory(
+        os,
+        gcvFALSE,
+        &Hardware->functionBytes,
+        &Hardware->functionPhysical,
+        &Hardware->functionLogical
+        ));
+
+    gcmkONERROR(gckOS_GetPhysicalAddress(
+        os,
+        Hardware->functionLogical,
+        &physical
+        ));
+
+    gcmkSAFECASTPHYSADDRT(Hardware->functionAddress, physical);
+
+    if (Hardware->mmuVersion > 0)
+    {
+        /* MMU configure command sequence. */
+        logical = (gctUINT8_PTR)Hardware->functionLogical + offset;
+
+        Hardware->functions[gcvHARDWARE_FUNCTION_MMU].address
+            = Hardware->functionAddress + offset;
+
+        gcmkONERROR(gckHARDWARE_SetMMUStates(
+            Hardware,
+            Hardware->kernel->mmu->mtlbLogical,
+            gcvMMU_MODE_4K,
+            (gctUINT8_PTR)Hardware->kernel->mmu->mtlbLogical + gcdMMU_MTLB_SIZE,
+            logical,
+            &mmuBytes
+            ));
+
+        offset += mmuBytes;
+
+        logical = (gctUINT8_PTR)Hardware->functionLogical + offset;
+
+        gcmkONERROR(gckHARDWARE_End(
+            Hardware,
+            gcvNULL,
+            &endBytes
+            ));
+
+        gcmkONERROR(gckHARDWARE_End(
+            Hardware,
+            logical,
+            &endBytes
+            ));
+
+        offset += endBytes;
+
+        Hardware->functions[gcvHARDWARE_FUNCTION_MMU].bytes = mmuBytes + endBytes;
+
+        Hardware->functions[gcvHARDWARE_FUNCTION_MMU].endAddress =
+            Hardware->functions[gcvHARDWARE_FUNCTION_MMU].address + mmuBytes;
+
+        Hardware->functions[gcvHARDWARE_FUNCTION_MMU].endLogical =
+            logical + mmuBytes;
+    }
+
+    gcmkASSERT(offset < Hardware->functionBytes);
+
+    gcmkFOOTER_NO();
+    return gcvSTATUS_OK;
+
+OnError:
+    gcmkFOOTER();
+    return status;
+}
+
+gceSTATUS
+gckHARDWARE_AddressInHardwareFuncions(
+    IN gckHARDWARE Hardware,
+    IN gctUINT32 Address,
+    OUT gctPOINTER *Pointer
+    )
+{
+    if (Address >= Hardware->functionAddress && Address <= Hardware->functionAddress - 1 + Hardware->functionBytes)
+    {
+        *Pointer = (gctUINT8_PTR)Hardware->functionLogical
+                 + (Address - Hardware->functionAddress)
+                 ;
+
+        return gcvSTATUS_OK;
+    }
+
+    return gcvSTATUS_NOT_FOUND;
+}
+
+gceSTATUS
+gckHARDWARE_QueryStateTimer(
+    IN gckHARDWARE Hardware,
+    OUT gctUINT64_PTR Start,
+    OUT gctUINT64_PTR End,
+    OUT gctUINT64_PTR On,
+    OUT gctUINT64_PTR Off,
+    OUT gctUINT64_PTR Idle,
+    OUT gctUINT64_PTR Suspend
+    )
+{
+    gckOS_AcquireMutex(Hardware->os, Hardware->powerMutex, gcvINFINITE);
+
+    gckSTATETIMER_Query(
+        &Hardware->powerStateTimer, Hardware->chipPowerState, Start, End, On, Off, Idle, Suspend);
+
+    gckOS_ReleaseMutex(Hardware->os, Hardware->powerMutex);
+
+    return gcvSTATUS_OK;
+}
+
diff --git a/src/hal/kernel/arch/gc_hal_kernel_hardware.h b/src/hal/kernel/arch/gc_hal_kernel_hardware.h
new file mode 100755
index 0000000..68732d0
--- /dev/null
+++ b/src/hal/kernel/arch/gc_hal_kernel_hardware.h
@@ -0,0 +1,210 @@
+/****************************************************************************
+*
+*    The MIT License (MIT)
+*
+*    Copyright (c) 2014 Vivante Corporation
+*
+*    Permission is hereby granted, free of charge, to any person obtaining a
+*    copy of this software and associated documentation files (the "Software"),
+*    to deal in the Software without restriction, including without limitation
+*    the rights to use, copy, modify, merge, publish, distribute, sublicense,
+*    and/or sell copies of the Software, and to permit persons to whom the
+*    Software is furnished to do so, subject to the following conditions:
+*
+*    The above copyright notice and this permission notice shall be included in
+*    all copies or substantial portions of the Software.
+*
+*    THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+*    IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+*    FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+*    AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+*    LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+*    FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+*    DEALINGS IN THE SOFTWARE.
+*
+*****************************************************************************
+*
+*    The GPL License (GPL)
+*
+*    Copyright (C) 2014  Vivante Corporation
+*
+*    This program is free software; you can redistribute it and/or
+*    modify it under the terms of the GNU General Public License
+*    as published by the Free Software Foundation; either version 2
+*    of the License, or (at your option) any later version.
+*
+*    This program is distributed in the hope that it will be useful,
+*    but WITHOUT ANY WARRANTY; without even the implied warranty of
+*    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+*    GNU General Public License for more details.
+*
+*    You should have received a copy of the GNU General Public License
+*    along with this program; if not, write to the Free Software Foundation,
+*    Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+*
+*****************************************************************************
+*
+*    Note: This software is released under dual MIT and GPL licenses. A
+*    recipient may use this file under the terms of either the MIT license or
+*    GPL License. If you wish to use only one license not the other, you can
+*    indicate your decision by deleting one of the above license notices in your
+*    version of this file.
+*
+*****************************************************************************/
+
+
+#ifndef __gc_hal_kernel_hardware_h_
+#define __gc_hal_kernel_hardware_h_
+
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+typedef enum {
+    gcvHARDWARE_FUNCTION_MMU,
+    gcvHARDWARE_FUNCTION_FLUSH,
+
+    gcvHARDWARE_FUNCTION_NUM,
+}
+gceHARDWARE_FUNCTION;
+
+
+typedef struct _gcsHARWARE_FUNCTION
+{
+    /* Entry of the function. */
+    gctUINT32                   address;
+
+    /* Bytes of the function. */
+    gctUINT32                   bytes;
+
+    /* Hardware address of END in this function. */
+    gctUINT32                   endAddress;
+
+    /* Logical of END in this function. */
+    gctUINT8_PTR                endLogical;
+}
+gcsHARDWARE_FUNCTION;
+
+typedef struct _gcsSTATETIMER
+{
+    gctUINT64                   start;
+    gctUINT64                   recent;
+
+    /* Elapse of each power state. */
+    gctUINT64                   elapse[4];
+}
+gcsSTATETIMER;
+
+/* gckHARDWARE object. */
+struct _gckHARDWARE
+{
+    /* Object. */
+    gcsOBJECT                   object;
+
+    /* Pointer to gctKERNEL object. */
+    gckKERNEL                   kernel;
+
+    /* Pointer to gctOS object. */
+    gckOS                       os;
+
+    /* Core */
+    gceCORE                     core;
+
+    /* Chip characteristics. */
+    gcsHAL_QUERY_CHIP_IDENTITY  identity;
+    gctBOOL                     allowFastClear;
+    gctBOOL                     allowCompression;
+    gctUINT32                   powerBaseAddress;
+    gctBOOL                     extraEventStates;
+
+    /* Big endian */
+    gctBOOL                     bigEndian;
+
+    /* Chip status */
+    gctPOINTER                  powerMutex;
+    gctUINT32                   powerProcess;
+    gctUINT32                   powerThread;
+    gceCHIPPOWERSTATE           chipPowerState;
+    gctUINT32                   lastWaitLink;
+    gctUINT32                   lastEnd;
+    gctBOOL                     clockState;
+    gctBOOL                     powerState;
+    gctPOINTER                  globalSemaphore;
+
+    gctISRMANAGERFUNC           startIsr;
+    gctISRMANAGERFUNC           stopIsr;
+    gctPOINTER                  isrContext;
+
+    gctUINT32                   mmuVersion;
+
+    /* Whether use new MMU. It is meaningless
+    ** for old MMU since old MMU is always enabled.
+    */
+    gctBOOL                     enableMMU;
+
+    /* Type */
+    gceHARDWARE_TYPE            type;
+
+#if gcdPOWEROFF_TIMEOUT
+    gctUINT32                   powerOffTime;
+    gctUINT32                   powerOffTimeout;
+    gctPOINTER                  powerOffTimer;
+#endif
+
+#if gcdENABLE_FSCALE_VAL_ADJUST
+    gctUINT32                   powerOnFscaleVal;
+#endif
+    gctPOINTER                  pageTableDirty;
+
+#if gcdLINK_QUEUE_SIZE
+    struct _gckLINKQUEUE        linkQueue;
+#endif
+
+    gctBOOL                     powerManagement;
+    gctBOOL                     gpuProfiler;
+
+    gctBOOL                     endAfterFlushMmuCache;
+
+    gctUINT32                   minFscaleValue;
+
+    gctPOINTER                  pendingEvent;
+
+    /* Function used by gckHARDWARE. */
+    gctPHYS_ADDR                functionPhysical;
+    gctPOINTER                  functionLogical;
+    gctUINT32                   functionAddress;
+    gctSIZE_T                   functionBytes;
+
+    gcsHARDWARE_FUNCTION        functions[gcvHARDWARE_FUNCTION_NUM];
+
+    gcsSTATETIMER               powerStateTimer;
+    gctUINT32                   executeCount;
+    gctUINT32                   lastExecuteAddress;
+};
+
+gceSTATUS
+gckHARDWARE_GetBaseAddress(
+    IN gckHARDWARE Hardware,
+    OUT gctUINT32_PTR BaseAddress
+    );
+
+gceSTATUS
+gckHARDWARE_NeedBaseAddress(
+    IN gckHARDWARE Hardware,
+    IN gctUINT32 State,
+    OUT gctBOOL_PTR NeedBase
+    );
+
+gceSTATUS
+gckHARDWARE_GetFrameInfo(
+    IN gckHARDWARE Hardware,
+    OUT gcsHAL_FRAME_INFO * FrameInfo
+    );
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* __gc_hal_kernel_hardware_h_ */
+
diff --git a/src/hal/kernel/arch/gc_hal_kernel_recorder.c b/src/hal/kernel/arch/gc_hal_kernel_recorder.c
new file mode 100755
index 0000000..540d9e8
--- /dev/null
+++ b/src/hal/kernel/arch/gc_hal_kernel_recorder.c
@@ -0,0 +1,713 @@
+/****************************************************************************
+*
+*    The MIT License (MIT)
+*
+*    Copyright (c) 2014 Vivante Corporation
+*
+*    Permission is hereby granted, free of charge, to any person obtaining a
+*    copy of this software and associated documentation files (the "Software"),
+*    to deal in the Software without restriction, including without limitation
+*    the rights to use, copy, modify, merge, publish, distribute, sublicense,
+*    and/or sell copies of the Software, and to permit persons to whom the
+*    Software is furnished to do so, subject to the following conditions:
+*
+*    The above copyright notice and this permission notice shall be included in
+*    all copies or substantial portions of the Software.
+*
+*    THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+*    IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+*    FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+*    AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+*    LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+*    FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+*    DEALINGS IN THE SOFTWARE.
+*
+*****************************************************************************
+*
+*    The GPL License (GPL)
+*
+*    Copyright (C) 2014  Vivante Corporation
+*
+*    This program is free software; you can redistribute it and/or
+*    modify it under the terms of the GNU General Public License
+*    as published by the Free Software Foundation; either version 2
+*    of the License, or (at your option) any later version.
+*
+*    This program is distributed in the hope that it will be useful,
+*    but WITHOUT ANY WARRANTY; without even the implied warranty of
+*    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+*    GNU General Public License for more details.
+*
+*    You should have received a copy of the GNU General Public License
+*    along with this program; if not, write to the Free Software Foundation,
+*    Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+*
+*****************************************************************************
+*
+*    Note: This software is released under dual MIT and GPL licenses. A
+*    recipient may use this file under the terms of either the MIT license or
+*    GPL License. If you wish to use only one license not the other, you can
+*    indicate your decision by deleting one of the above license notices in your
+*    version of this file.
+*
+*****************************************************************************/
+
+
+#include "gc_hal.h"
+#include "gc_hal_kernel.h"
+#include "gc_hal_kernel_context.h"
+
+/*
+ *                          -----------------------
+ *                          HARDWARE STATE RECORDER
+ *                          -----------------------
+ *
+ * State mirror buffer is used to 'mirror' hardware states since hardware
+ * states can't be dumpped. It is a context buffer which stores 'global'
+ * context.
+ *
+ * For each commit, state recorder
+ * 1) Records context buffer (if there is) and command buffers in this commit.
+ * 2) Parse those buffers to estimate the state changed.
+ * 3) Stores result to a mirror buffer.
+ *
+ * == Commit 0 ====================================================================
+ *
+ *      Context Buffer 0
+ *
+ *      Command Buffer 0
+ *
+ *      Mirror Buffer  0  <- Context Buffer 0 + Command Buffer 0
+ *
+ * == Commit 1 ====================================================================
+ *
+ *      Command Buffer 1
+ *
+ *      Mirror Buffer  1  <- Command buffer 1 + Mirror Buffer 0
+ *
+ * == Commit 2 ====================================================================
+ *
+ *      Context Buffer 2 (optional)
+ *
+ *      Command Buffer 2
+ *
+ *      Mirror  Buffer 2  <- Command buffer 2 + Context Buffer 2 + Mirror Buffer 1
+ *
+ * == Commit N ====================================================================
+ *
+ * For Commit N, these buffers are needed to reproduce hardware's behavior in
+ * this commit.
+ *
+ *  Mirror  Buffer [N - 1] : State Mirror accumlated by past commits,
+ *                           which is used to restore hardware state.
+ *  Context Buffer [N]     :
+ *  Command Buffer [N]     : Command buffer executed by hardware in this commit.
+ *
+ *  If sequence of states programming matters, hardware's behavior can't be reproduced,
+ *  but the state values stored in mirror buffer are assuring.
+ */
+
+/* Queue size. */
+#define gcdNUM_RECORDS  6
+
+typedef struct _gcsPARSER_HANDLER * gckPARSER_HANDLER;
+
+typedef void
+(*HandlerFunction)(
+    IN gckPARSER_HANDLER Handler,
+    IN gctUINT32 Addr,
+    IN gctUINT32 Data
+    );
+
+typedef struct _gcsPARSER_HANDLER
+{
+    gctUINT32           type;
+    gctUINT32           cmd;
+    gctPOINTER          private;
+    HandlerFunction     function;
+}
+gcsPARSER_HANDLER;
+
+typedef struct _gcsPARSER * gckPARSER;
+typedef struct _gcsPARSER
+{
+    gctUINT8_PTR        currentCmdBufferAddr;
+
+    /* Current command. */
+    gctUINT32           lo;
+    gctUINT32           hi;
+
+    gctUINT8            cmdOpcode;
+    gctUINT16           cmdAddr;
+    gctUINT32           cmdSize;
+    gctUINT32           cmdRectCount;
+    gctUINT8            skip;
+    gctUINT32           skipCount;
+
+    gctBOOL             allow;
+
+    /* Callback used by parser to handle a command. */
+    gckPARSER_HANDLER   commandHandler;
+}
+gcsPARSER;
+
+typedef struct _gcsMIRROR
+{
+    gctUINT32_PTR       logical[gcdNUM_RECORDS];
+    gctUINT32           bytes;
+    gcsSTATE_MAP_PTR    map;
+    gctUINT32           maxState;
+}
+gcsMIRROR;
+
+typedef struct _gcsDELTA
+{
+    gctUINT64           commitStamp;
+    gctUINT32_PTR       command;
+    gctUINT32           commandBytes;
+    gctUINT32_PTR       context;
+    gctUINT32           contextBytes;
+}
+gcsDELTA;
+
+typedef struct _gcsRECORDER
+{
+    gckOS               os;
+    gcsMIRROR           mirror;
+    gcsDELTA            deltas[gcdNUM_RECORDS];
+
+    /* Index of current record. */
+    gctUINT             index;
+
+    /* Number of records. */
+    gctUINT             num;
+
+    /* Plugin used by gckPARSER. */
+    gcsPARSER_HANDLER   recorderHandler;
+    gckPARSER           parser;
+}
+gcsRECORDER;
+
+
+/******************************************************************************\
+***************************** Command Buffer Parser ****************************
+\******************************************************************************/
+
+/*
+** Command buffer parser checks command buffer in FE's view to make sure there
+** is no format error.
+**
+** Parser provide a callback mechnisam, so plug-in can be added to implement
+** other functions.
+*/
+
+static void
+_HandleLoadState(
+    IN OUT gckPARSER Parser
+    )
+{
+    gctUINT i;
+    gctUINT32_PTR data = (gctUINT32_PTR)Parser->currentCmdBufferAddr;
+    gctUINT32 cmdAddr = Parser->cmdAddr;
+
+    if (Parser->commandHandler == gcvNULL
+     || Parser->commandHandler->cmd != 0x01
+    )
+    {
+        /* No handler for this command. */
+        return;
+    }
+
+    for (i = 0; i < Parser->cmdSize; i++)
+    {
+        Parser->commandHandler->function(Parser->commandHandler, cmdAddr, *data);
+
+        /* Advance to next state. */
+        cmdAddr++;
+        data++;
+    }
+}
+
+static void
+_GetCommand(
+    IN OUT gckPARSER Parser
+    )
+{
+    gctUINT32 * buffer = (gctUINT32 *)Parser->currentCmdBufferAddr;
+
+    gctUINT16 cmdRectCount;
+    gctUINT16 cmdDataCount;
+
+    Parser->hi = buffer[0];
+    Parser->lo = buffer[1];
+
+    Parser->cmdOpcode = (((((gctUINT32) (Parser->hi)) >> (0 ? 31:27)) & ((gctUINT32) ((((1 ? 31:27) - (0 ? 31:27) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 31:27) - (0 ? 31:27) + 1)))))) );
+    Parser->cmdRectCount = 1;
+
+    switch (Parser->cmdOpcode)
+    {
+    case 0x01:
+        /* Extract count. */
+        Parser->cmdSize = (((((gctUINT32) (Parser->hi)) >> (0 ? 25:16)) & ((gctUINT32) ((((1 ? 25:16) - (0 ? 25:16) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 25:16) - (0 ? 25:16) + 1)))))) );
+        if (Parser->cmdSize == 0)
+        {
+            /* 0 means 1024. */
+            Parser->cmdSize = 1024;
+        }
+        Parser->skip = (Parser->cmdSize & 0x1) ? 0 : 1;
+
+        /* Extract address. */
+        Parser->cmdAddr = (((((gctUINT32) (Parser->hi)) >> (0 ? 15:0)) & ((gctUINT32) ((((1 ? 15:0) - (0 ? 15:0) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 15:0) - (0 ? 15:0) + 1)))))) );
+
+        Parser->currentCmdBufferAddr = Parser->currentCmdBufferAddr + 4;
+        Parser->skipCount = Parser->cmdSize + Parser->skip;
+        break;
+
+     case 0x05:
+        Parser->cmdSize   = 4;
+        Parser->skipCount = gcmALIGN(Parser->cmdSize, 2);
+        break;
+
+    case 0x06:
+        Parser->cmdSize   = 5;
+        Parser->skipCount = gcmALIGN(Parser->cmdSize, 2);
+        break;
+
+    case 0x0C:
+        Parser->cmdSize   = 3;
+        Parser->skipCount = gcmALIGN(Parser->cmdSize, 2);
+        break;
+
+    case 0x09:
+        Parser->cmdSize   = 2;
+        Parser->cmdAddr   = 0x0F16;
+        Parser->skipCount = gcmALIGN(Parser->cmdSize, 2);
+        break;
+
+     case 0x04:
+        Parser->cmdSize = 1;
+        Parser->cmdAddr = 0x0F06;
+
+        cmdRectCount = (((((gctUINT32) (Parser->hi)) >> (0 ? 15:8)) & ((gctUINT32) ((((1 ? 15:8) - (0 ? 15:8) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 15:8) - (0 ? 15:8) + 1)))))) );
+        cmdDataCount = (((((gctUINT32) (Parser->hi)) >> (0 ? 26:16)) & ((gctUINT32) ((((1 ? 26:16) - (0 ? 26:16) + 1) == 32) ? ~0 : (~(~0 << ((1 ? 26:16) - (0 ? 26:16) + 1)))))) );
+
+        Parser->skipCount = gcmALIGN(Parser->cmdSize, 2)
+                          + cmdRectCount * 2
+                          + gcmALIGN(cmdDataCount, 2);
+
+        Parser->cmdRectCount = cmdRectCount;
+        break;
+
+    case 0x03:
+        Parser->currentCmdBufferAddr = Parser->currentCmdBufferAddr + 8;
+        Parser->skipCount = 0;
+        break;
+
+    case 0x02:
+        Parser->currentCmdBufferAddr = Parser->currentCmdBufferAddr + 8;
+        Parser->skipCount = 0;
+        break;
+
+    default:
+        /* Unknown command is a risk. */
+        Parser->allow = gcvFALSE;
+        break;
+    }
+}
+
+static void
+_ParseCommand(
+    IN OUT gckPARSER Parser
+    )
+{
+    switch(Parser->cmdOpcode)
+    {
+    case 0x01:
+        _HandleLoadState(Parser);
+        break;
+    case 0x05:
+    case 0x06:
+    case 0x0C:
+        break;
+    case 0x04:
+        break;
+    default:
+        break;
+    }
+
+    /* Advance to next command. */
+    Parser->currentCmdBufferAddr = Parser->currentCmdBufferAddr
+                                 + (Parser->skipCount << 2);
+}
+
+gceSTATUS
+gckPARSER_Parse(
+    IN gckPARSER Parser,
+    IN gctUINT8_PTR Buffer,
+    IN gctUINT32 Bytes
+    )
+{
+    gckPARSER parser = Parser;
+    gctUINT8_PTR end = (gctUINT8_PTR)Buffer + Bytes;
+
+    /* Initialize parser. */
+    parser->currentCmdBufferAddr = (gctUINT8_PTR)Buffer;
+    parser->skip = 0;
+    parser->allow = gcvTRUE;
+
+    /* Go through command buffer until reaching the end
+    ** or meeting an error. */
+    do
+    {
+        _GetCommand(parser);
+
+        _ParseCommand(parser);
+    }
+    while ((parser->currentCmdBufferAddr < end) && (parser->allow == gcvTRUE));
+
+    if (parser->allow == gcvFALSE)
+    {
+        /* Error detected. */
+        return gcvSTATUS_NOT_SUPPORTED;
+    }
+
+    return gcvSTATUS_OK;
+}
+
+/*******************************************************************************
+**
+**  gckPARSER_RegisterCommandHandler
+**
+**  Register a command handler which will be called when parser get a command.
+**
+*/
+gceSTATUS
+gckPARSER_RegisterCommandHandler(
+    IN gckPARSER Parser,
+    IN gckPARSER_HANDLER Handler
+    )
+{
+    Parser->commandHandler = Handler;
+
+    return gcvSTATUS_OK;
+}
+
+gceSTATUS
+gckPARSER_Construct(
+    IN gckOS Os,
+    IN gckPARSER_HANDLER Handler,
+    OUT gckPARSER * Parser
+    )
+{
+    gceSTATUS status;
+    gckPARSER pointer;
+
+    gcmkONERROR(gckOS_Allocate(Os, gcmSIZEOF(gcsPARSER), (gctPOINTER *)&pointer));
+
+    /* Put it here temp, should have a more general plug-in mechnisam. */
+    pointer->commandHandler = Handler;
+
+    *Parser = pointer;
+
+    return gcvSTATUS_OK;
+
+OnError:
+    return status;
+}
+
+void
+gckPARSER_Destroy(
+    IN gckOS Os,
+    IN gckPARSER Parser
+    )
+{
+    gcmkOS_SAFE_FREE(Os, Parser);
+}
+
+/******************************************************************************\
+**************************** Hardware States Recorder **************************
+\******************************************************************************/
+
+static void
+_RecodeState(
+    IN gckPARSER_HANDLER Handler,
+    IN gctUINT32 Addr,
+    IN gctUINT32 Data
+    )
+{
+    gcmkVERIFY_OK(gckRECORDER_UpdateMirror(Handler->private, Addr, Data));
+}
+
+static gctUINT
+_Previous(
+    IN gctUINT Index
+    )
+{
+    if (Index == 0)
+    {
+        return gcdNUM_RECORDS - 1;
+    }
+
+    return Index - 1;
+}
+
+static gctUINT
+_Next(
+    IN gctUINT Index
+    )
+{
+    return (Index + 1) % gcdNUM_RECORDS;
+}
+
+gceSTATUS
+gckRECORDER_Construct(
+    IN gckOS Os,
+    IN gckHARDWARE Hardware,
+    OUT gckRECORDER * Recorder
+    )
+{
+    gceSTATUS status;
+    gckCONTEXT context = gcvNULL;
+    gckRECORDER recorder = gcvNULL;
+    gctUINT32 mapSize;
+    gctUINT i;
+    gctBOOL virtualCommandBuffer = Hardware->kernel->virtualCommandBuffer;
+
+    /* TODO: We only need context buffer and state map, it should be able to get without construct a
+    ** new context.
+    ** Now it is leaked, since we can't free it when command buffer is gone.
+    */
+
+    /* MMU is not ready now. */
+    Hardware->kernel->virtualCommandBuffer = gcvFALSE;
+
+    gcmkONERROR(gckCONTEXT_Construct(Os, Hardware, 0, &context));
+
+    /* Restore. */
+    Hardware->kernel->virtualCommandBuffer = virtualCommandBuffer;
+
+    gcmkONERROR(gckOS_Allocate(Os, gcmSIZEOF(gcsRECORDER), (gctPOINTER *)&recorder));
+
+    gckOS_ZeroMemory(recorder, gcmSIZEOF(gcsRECORDER));
+
+    /* Copy state map. */
+    recorder->mirror.maxState = context->maxState;
+
+    mapSize = context->maxState * gcmSIZEOF(gcsSTATE_MAP);
+
+    gcmkONERROR(gckOS_Allocate(Os, mapSize, (gctPOINTER *)&recorder->mirror.map));
+
+    gckOS_MemCopy(recorder->mirror.map, context->map, mapSize);
+
+    /* Copy context buffer. */
+    recorder->mirror.bytes = context->totalSize;
+
+    for (i = 0; i < gcdNUM_RECORDS; i++)
+    {
+        gcmkONERROR(gckOS_Allocate(Os, context->totalSize, (gctPOINTER *)&recorder->mirror.logical[i]));
+        gckOS_MemCopy(recorder->mirror.logical[i], context->buffer->logical, context->totalSize);
+    }
+
+    for (i = 0; i < gcdNUM_RECORDS; i++)
+    {
+        /* TODO : Optimize size. */
+        gcmkONERROR(gckOS_Allocate(Os, gcdCMD_BUFFER_SIZE, (gctPOINTER *)&recorder->deltas[i].command));
+        gcmkONERROR(gckOS_Allocate(Os, context->totalSize, (gctPOINTER *)&recorder->deltas[i].context));
+    }
+
+    recorder->index = 0;
+    recorder->num   = 0;
+
+    /* Initialize Parser plugin. */
+    recorder->recorderHandler.cmd = 0x01;
+    recorder->recorderHandler.private = recorder;
+    recorder->recorderHandler.function = _RecodeState;
+
+    gcmkONERROR(gckPARSER_Construct(Os, &recorder->recorderHandler, &recorder->parser));
+
+    recorder->os = Os;
+
+    *Recorder = recorder;
+
+    return gcvSTATUS_OK;
+
+OnError:
+    if (recorder)
+    {
+        gckRECORDER_Destory(Os, recorder);
+    }
+
+    return status;
+}
+
+gceSTATUS
+gckRECORDER_Destory(
+    IN gckOS Os,
+    IN gckRECORDER Recorder
+    )
+{
+    gctUINT i;
+
+    if (Recorder->mirror.map)
+    {
+        gcmkOS_SAFE_FREE(Os, Recorder->mirror.map);
+    }
+
+    for (i = 0; i < gcdNUM_RECORDS; i++)
+    {
+        if (Recorder->mirror.logical[i])
+        {
+            gcmkOS_SAFE_FREE(Os, Recorder->mirror.logical[i]);
+        }
+    }
+
+    for (i = 0; i < gcdNUM_RECORDS; i++)
+    {
+        if (Recorder->deltas[i].command)
+        {
+            gcmkOS_SAFE_FREE(Os, Recorder->deltas[i].command);
+        }
+
+        if (Recorder->deltas[i].context)
+        {
+            gcmkOS_SAFE_FREE(Os, Recorder->deltas[i].context);
+        }
+    }
+
+    if (Recorder->parser)
+    {
+        gckPARSER_Destroy(Os, Recorder->parser);
+    }
+
+    gcmkOS_SAFE_FREE(Os, Recorder);
+
+    return gcvSTATUS_OK;
+}
+
+gceSTATUS
+gckRECORDER_UpdateMirror(
+    IN gckRECORDER Recorder,
+    IN gctUINT32 State,
+    IN gctUINT32 Data
+    )
+{
+    gctUINT32 index;
+    gcsSTATE_MAP_PTR map = Recorder->mirror.map;
+    gctUINT32_PTR buffer = Recorder->mirror.logical[Recorder->index];
+
+    if (State >= Recorder->mirror.maxState)
+    {
+        /* Ignore them just like HW does. */
+        return gcvSTATUS_OK;
+    }
+
+    index = map[State].index;
+
+    if (index)
+    {
+        buffer[index] = Data;
+    }
+
+    return gcvSTATUS_OK;
+}
+
+void
+gckRECORDER_AdvanceIndex(
+    IN gckRECORDER Recorder,
+    IN gctUINT64 CommitStamp
+    )
+{
+    /* Get next record. */
+    gctUINT next = (Recorder->index + 1) % gcdNUM_RECORDS;
+
+    /* Record stamp of this commit. */
+    Recorder->deltas[Recorder->index].commitStamp = CommitStamp;
+
+    /* Mirror of next record is mirror of this record and delta in next record. */
+    gckOS_MemCopy(Recorder->mirror.logical[next],
+        Recorder->mirror.logical[Recorder->index], Recorder->mirror.bytes);
+
+    /* Advance to next record. */
+    Recorder->index = next;
+
+    Recorder->num = gcmMIN(Recorder->num + 1, gcdNUM_RECORDS - 1);
+
+
+    /* Reset delta. */
+    Recorder->deltas[Recorder->index].commandBytes = 0;
+    Recorder->deltas[Recorder->index].contextBytes = 0;
+}
+
+void
+gckRECORDER_Record(
+    IN gckRECORDER Recorder,
+    IN gctUINT8_PTR CommandBuffer,
+    IN gctUINT32 CommandBytes,
+    IN gctUINT8_PTR ContextBuffer,
+    IN gctUINT32 ContextBytes
+    )
+{
+    gcsDELTA * delta = &Recorder->deltas[Recorder->index];
+
+    if (CommandBytes != 0xFFFFFFFF)
+    {
+        gckPARSER_Parse(Recorder->parser, CommandBuffer, CommandBytes);
+        gckOS_MemCopy(delta->command, CommandBuffer, CommandBytes);
+        delta->commandBytes = CommandBytes;
+    }
+
+    if (ContextBytes != 0xFFFFFFFF)
+    {
+        gckPARSER_Parse(Recorder->parser, ContextBuffer, ContextBytes);
+        gckOS_MemCopy(delta->context, ContextBuffer, ContextBytes);
+        delta->contextBytes = ContextBytes;
+    }
+}
+
+void
+gckRECORDER_Dump(
+    IN gckRECORDER Recorder
+    )
+{
+    gctUINT last = Recorder->index;
+    gctUINT previous;
+    gctUINT i;
+    gcsMIRROR *mirror = &Recorder->mirror;
+    gcsDELTA *delta;
+    gckOS os = Recorder->os;
+
+    for (i = 0; i < Recorder->num; i++)
+    {
+        last = _Previous(last);
+    }
+
+    for (i = 0; i < Recorder->num; i++)
+    {
+        delta = &Recorder->deltas[last];
+
+        /* Dump record */
+        gcmkPRINT("#[commit %llu]", delta->commitStamp);
+
+        if (delta->commitStamp)
+        {
+            previous = _Previous(last);
+
+            gcmkPRINT("#[mirror]");
+            gckOS_DumpBuffer(os, mirror->logical[previous], mirror->bytes, gceDUMP_BUFFER_CONTEXT, gcvTRUE);
+            gcmkPRINT("@[kernel.execute]");
+        }
+
+        if (delta->contextBytes)
+        {
+            gckOS_DumpBuffer(os, delta->context, delta->contextBytes, gceDUMP_BUFFER_CONTEXT, gcvTRUE);
+            gcmkPRINT("@[kernel.execute]");
+        }
+
+        gckOS_DumpBuffer(os, delta->command, delta->commandBytes, gceDUMP_BUFFER_USER, gcvTRUE);
+        gcmkPRINT("@[kernel.execute]");
+
+        last = _Next(last);
+    }
+}
+
+
diff --git a/src/hal/kernel/arch/makefile b/src/hal/kernel/arch/makefile
new file mode 100755
index 0000000..caa3d18
--- /dev/null
+++ b/src/hal/kernel/arch/makefile
@@ -0,0 +1,57 @@
+##############################################################################
+#
+#    The MIT License (MIT)
+#
+#    Copyright (c) 2014 Vivante Corporation
+#
+#    Permission is hereby granted, free of charge, to any person obtaining a
+#    copy of this software and associated documentation files (the "Software"),
+#    to deal in the Software without restriction, including without limitation
+#    the rights to use, copy, modify, merge, publish, distribute, sublicense,
+#    and/or sell copies of the Software, and to permit persons to whom the
+#    Software is furnished to do so, subject to the following conditions:
+#
+#    The above copyright notice and this permission notice shall be included in
+#    all copies or substantial portions of the Software.
+#
+#    THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+#    IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+#    FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+#    AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+#    LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+#    FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+#    DEALINGS IN THE SOFTWARE.
+#
+##############################################################################
+#
+#    The GPL License (GPL)
+#
+#    Copyright (C) 2014  Vivante Corporation
+#
+#    This program is free software; you can redistribute it and/or
+#    modify it under the terms of the GNU General Public License
+#    as published by the Free Software Foundation; either version 2
+#    of the License, or (at your option) any later version.
+#
+#    This program is distributed in the hope that it will be useful,
+#    but WITHOUT ANY WARRANTY; without even the implied warranty of
+#    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+#    GNU General Public License for more details.
+#
+#    You should have received a copy of the GNU General Public License
+#    along with this program; if not, write to the Free Software Foundation,
+#    Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+#
+##############################################################################
+#
+#    Note: This software is released under dual MIT and GPL licenses. A
+#    recipient may use this file under the terms of either the MIT license or
+#    GPL License. If you wish to use only one license not the other, you can
+#    indicate your decision by deleting one of the above license notices in your
+#    version of this file.
+#
+##############################################################################
+
+
+!INCLUDE $(_MAKEENVROOT)\makefile.def
+
diff --git a/src/hal/kernel/arch/makefile.linux b/src/hal/kernel/arch/makefile.linux
new file mode 100755
index 0000000..0132775
--- /dev/null
+++ b/src/hal/kernel/arch/makefile.linux
@@ -0,0 +1,88 @@
+##############################################################################
+#
+#    The MIT License (MIT)
+#
+#    Copyright (c) 2014 Vivante Corporation
+#
+#    Permission is hereby granted, free of charge, to any person obtaining a
+#    copy of this software and associated documentation files (the "Software"),
+#    to deal in the Software without restriction, including without limitation
+#    the rights to use, copy, modify, merge, publish, distribute, sublicense,
+#    and/or sell copies of the Software, and to permit persons to whom the
+#    Software is furnished to do so, subject to the following conditions:
+#
+#    The above copyright notice and this permission notice shall be included in
+#    all copies or substantial portions of the Software.
+#
+#    THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+#    IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+#    FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+#    AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+#    LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+#    FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+#    DEALINGS IN THE SOFTWARE.
+#
+##############################################################################
+#
+#    The GPL License (GPL)
+#
+#    Copyright (C) 2014  Vivante Corporation
+#
+#    This program is free software; you can redistribute it and/or
+#    modify it under the terms of the GNU General Public License
+#    as published by the Free Software Foundation; either version 2
+#    of the License, or (at your option) any later version.
+#
+#    This program is distributed in the hope that it will be useful,
+#    but WITHOUT ANY WARRANTY; without even the implied warranty of
+#    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+#    GNU General Public License for more details.
+#
+#    You should have received a copy of the GNU General Public License
+#    along with this program; if not, write to the Free Software Foundation,
+#    Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+#
+##############################################################################
+#
+#    Note: This software is released under dual MIT and GPL licenses. A
+#    recipient may use this file under the terms of either the MIT license or
+#    GPL License. If you wish to use only one license not the other, you can
+#    indicate your decision by deleting one of the above license notices in your
+#    version of this file.
+#
+##############################################################################
+
+
+#
+# Linux build file for architecture dependent kernel HAL layer.
+#
+
+################################################################################
+# Include common definitions.
+
+include $(AQROOT)/makefile.linux.def
+
+################################################################################
+# Define a shortcut for the main target.
+
+STATIC = 1
+TARGET_NAME = libhalarchkernel.a
+
+################################################################################
+# Supply additional include directories.
+
+INCLUDE += -I$(AQROOT)/hal/kernel/inc
+INCLUDE += -I$(AQROOT)/hal/kernel/inc
+INCLUDE += -I$(AQROOT)/hal/kernel
+INCLUDE += -I$(AQROOT)/hal/kernel/arch
+
+CFLAGS += $(INCLUDE) -Werror -ansi
+
+
+################################################################################
+# Describe object files.
+
+OBJECTS = $(OBJ_DIR)/gc_hal_kernel_context.o \
+          $(OBJ_DIR)/gc_hal_kernel_hardware.o
+
+include $(AQROOT)/common.target
diff --git a/src/hal/kernel/arch/sources b/src/hal/kernel/arch/sources
new file mode 100755
index 0000000..ab91223
--- /dev/null
+++ b/src/hal/kernel/arch/sources
@@ -0,0 +1,71 @@
+##############################################################################
+#
+#    The MIT License (MIT)
+#
+#    Copyright (c) 2014 Vivante Corporation
+#
+#    Permission is hereby granted, free of charge, to any person obtaining a
+#    copy of this software and associated documentation files (the "Software"),
+#    to deal in the Software without restriction, including without limitation
+#    the rights to use, copy, modify, merge, publish, distribute, sublicense,
+#    and/or sell copies of the Software, and to permit persons to whom the
+#    Software is furnished to do so, subject to the following conditions:
+#
+#    The above copyright notice and this permission notice shall be included in
+#    all copies or substantial portions of the Software.
+#
+#    THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+#    IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+#    FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+#    AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+#    LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+#    FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+#    DEALINGS IN THE SOFTWARE.
+#
+##############################################################################
+#
+#    The GPL License (GPL)
+#
+#    Copyright (C) 2014  Vivante Corporation
+#
+#    This program is free software; you can redistribute it and/or
+#    modify it under the terms of the GNU General Public License
+#    as published by the Free Software Foundation; either version 2
+#    of the License, or (at your option) any later version.
+#
+#    This program is distributed in the hope that it will be useful,
+#    but WITHOUT ANY WARRANTY; without even the implied warranty of
+#    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+#    GNU General Public License for more details.
+#
+#    You should have received a copy of the GNU General Public License
+#    along with this program; if not, write to the Free Software Foundation,
+#    Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+#
+##############################################################################
+#
+#    Note: This software is released under dual MIT and GPL licenses. A
+#    recipient may use this file under the terms of either the MIT license or
+#    GPL License. If you wish to use only one license not the other, you can
+#    indicate your decision by deleting one of the above license notices in your
+#    version of this file.
+#
+##############################################################################
+
+
+SYNCHRONIZE_DRAIN=1
+TARGETNAME=arch.kernel
+TARGETTYPE=LIBRARY
+
+SOURCES= \
+    gc_hal_kernel_hardware.c \
+    gc_hal_kernel_context.c \
+
+INCLUDES= \
+  $(INCLUDES); \
+  $(AQROOT)\hal\kernel\inc; \
+  $(AQROOT)\hal\kernel; \
+  $(AQROOT)\hal\kernel\inc; \
+  $(AQROOT)\hal\os\ce\kernel; \
+  $(AQROOT)\hal\kernel\archvg; \
+
diff --git a/src/hal/kernel/gc_hal_kernel.c b/src/hal/kernel/gc_hal_kernel.c
new file mode 100755
index 0000000..d9387fe
--- /dev/null
+++ b/src/hal/kernel/gc_hal_kernel.c
@@ -0,0 +1,5008 @@
+/****************************************************************************
+*
+*    The MIT License (MIT)
+*
+*    Copyright (c) 2014 Vivante Corporation
+*
+*    Permission is hereby granted, free of charge, to any person obtaining a
+*    copy of this software and associated documentation files (the "Software"),
+*    to deal in the Software without restriction, including without limitation
+*    the rights to use, copy, modify, merge, publish, distribute, sublicense,
+*    and/or sell copies of the Software, and to permit persons to whom the
+*    Software is furnished to do so, subject to the following conditions:
+*
+*    The above copyright notice and this permission notice shall be included in
+*    all copies or substantial portions of the Software.
+*
+*    THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+*    IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+*    FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+*    AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+*    LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+*    FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+*    DEALINGS IN THE SOFTWARE.
+*
+*****************************************************************************
+*
+*    The GPL License (GPL)
+*
+*    Copyright (C) 2014  Vivante Corporation
+*
+*    This program is free software; you can redistribute it and/or
+*    modify it under the terms of the GNU General Public License
+*    as published by the Free Software Foundation; either version 2
+*    of the License, or (at your option) any later version.
+*
+*    This program is distributed in the hope that it will be useful,
+*    but WITHOUT ANY WARRANTY; without even the implied warranty of
+*    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+*    GNU General Public License for more details.
+*
+*    You should have received a copy of the GNU General Public License
+*    along with this program; if not, write to the Free Software Foundation,
+*    Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+*
+*****************************************************************************
+*
+*    Note: This software is released under dual MIT and GPL licenses. A
+*    recipient may use this file under the terms of either the MIT license or
+*    GPL License. If you wish to use only one license not the other, you can
+*    indicate your decision by deleting one of the above license notices in your
+*    version of this file.
+*
+*****************************************************************************/
+
+
+#include "gc_hal_kernel_precomp.h"
+
+#if gcdENABLE_DEC_COMPRESSION && gcdDEC_ENABLE_AHB
+#include "viv_dec300_main.h"
+#endif
+
+#define _GC_OBJ_ZONE    gcvZONE_KERNEL
+
+/*******************************************************************************
+***** Version Signature *******************************************************/
+
+#define _gcmTXT2STR(t) #t
+#define gcmTXT2STR(t) _gcmTXT2STR(t)
+const char * _VERSION = "\n\0$VERSION$"
+                        gcmTXT2STR(gcvVERSION_MAJOR) "."
+                        gcmTXT2STR(gcvVERSION_MINOR) "."
+                        gcmTXT2STR(gcvVERSION_PATCH) ":"
+                        gcmTXT2STR(gcvVERSION_BUILD) "$\n";
+
+/******************************************************************************\
+******************************* gckKERNEL API Code ******************************
+\******************************************************************************/
+
+#if gcmIS_DEBUG(gcdDEBUG_TRACE)
+#define gcmDEFINE2TEXT(d) #d
+gctCONST_STRING _DispatchText[] =
+{
+    gcmDEFINE2TEXT(gcvHAL_QUERY_VIDEO_MEMORY),
+    gcmDEFINE2TEXT(gcvHAL_QUERY_CHIP_IDENTITY),
+    gcmDEFINE2TEXT(gcvHAL_ALLOCATE_NON_PAGED_MEMORY),
+    gcmDEFINE2TEXT(gcvHAL_FREE_NON_PAGED_MEMORY),
+    gcmDEFINE2TEXT(gcvHAL_ALLOCATE_CONTIGUOUS_MEMORY),
+    gcmDEFINE2TEXT(gcvHAL_FREE_CONTIGUOUS_MEMORY),
+    gcmDEFINE2TEXT(gcvHAL_ALLOCATE_VIDEO_MEMORY),
+    gcmDEFINE2TEXT(gcvHAL_ALLOCATE_LINEAR_VIDEO_MEMORY),
+    gcmDEFINE2TEXT(gcvHAL_RELEASE_VIDEO_MEMORY),
+    gcmDEFINE2TEXT(gcvHAL_MAP_MEMORY),
+    gcmDEFINE2TEXT(gcvHAL_UNMAP_MEMORY),
+    gcmDEFINE2TEXT(gcvHAL_MAP_USER_MEMORY),
+    gcmDEFINE2TEXT(gcvHAL_UNMAP_USER_MEMORY),
+    gcmDEFINE2TEXT(gcvHAL_LOCK_VIDEO_MEMORY),
+    gcmDEFINE2TEXT(gcvHAL_UNLOCK_VIDEO_MEMORY),
+    gcmDEFINE2TEXT(gcvHAL_EVENT_COMMIT),
+    gcmDEFINE2TEXT(gcvHAL_USER_SIGNAL),
+    gcmDEFINE2TEXT(gcvHAL_SIGNAL),
+    gcmDEFINE2TEXT(gcvHAL_WRITE_DATA),
+    gcmDEFINE2TEXT(gcvHAL_COMMIT),
+    gcmDEFINE2TEXT(gcvHAL_STALL),
+    gcmDEFINE2TEXT(gcvHAL_READ_REGISTER),
+    gcmDEFINE2TEXT(gcvHAL_WRITE_REGISTER),
+    gcmDEFINE2TEXT(gcvHAL_GET_PROFILE_SETTING),
+    gcmDEFINE2TEXT(gcvHAL_SET_PROFILE_SETTING),
+    gcmDEFINE2TEXT(gcvHAL_READ_ALL_PROFILE_REGISTERS),
+    gcmDEFINE2TEXT(gcvHAL_PROFILE_REGISTERS_2D),
+#if VIVANTE_PROFILER_PERDRAW
+    gcvHAL_READ_PROFILER_REGISTER_SETTING,
+#endif
+    gcmDEFINE2TEXT(gcvHAL_SET_POWER_MANAGEMENT_STATE),
+    gcmDEFINE2TEXT(gcvHAL_QUERY_POWER_MANAGEMENT_STATE),
+    gcmDEFINE2TEXT(gcvHAL_GET_BASE_ADDRESS),
+    gcmDEFINE2TEXT(gcvHAL_SET_IDLE),
+    gcmDEFINE2TEXT(gcvHAL_QUERY_KERNEL_SETTINGS),
+    gcmDEFINE2TEXT(gcvHAL_RESET),
+    gcmDEFINE2TEXT(gcvHAL_MAP_PHYSICAL),
+    gcmDEFINE2TEXT(gcvHAL_DEBUG),
+    gcmDEFINE2TEXT(gcvHAL_CACHE),
+    gcmDEFINE2TEXT(gcvHAL_TIMESTAMP),
+    gcmDEFINE2TEXT(gcvHAL_DATABASE),
+    gcmDEFINE2TEXT(gcvHAL_VERSION),
+    gcmDEFINE2TEXT(gcvHAL_CHIP_INFO),
+    gcmDEFINE2TEXT(gcvHAL_ATTACH),
+    gcmDEFINE2TEXT(gcvHAL_DETACH),
+    gcmDEFINE2TEXT(gcvHAL_COMPOSE),
+    gcmDEFINE2TEXT(gcvHAL_SET_TIMEOUT),
+    gcmDEFINE2TEXT(gcvHAL_GET_FRAME_INFO),
+    gcmDEFINE2TEXT(gcvHAL_QUERY_COMMAND_BUFFER),
+    gcmDEFINE2TEXT(gcvHAL_COMMIT_DONE),
+    gcmDEFINE2TEXT(gcvHAL_DUMP_GPU_STATE),
+    gcmDEFINE2TEXT(gcvHAL_DUMP_EVENT),
+    gcmDEFINE2TEXT(gcvHAL_ALLOCATE_VIRTUAL_COMMAND_BUFFER),
+    gcmDEFINE2TEXT(gcvHAL_FREE_VIRTUAL_COMMAND_BUFFER),
+    gcmDEFINE2TEXT(gcvHAL_SET_FSCALE_VALUE),
+    gcmDEFINE2TEXT(gcvHAL_GET_FSCALE_VALUE),
+    gcmDEFINE2TEXT(gcvHAL_NAME_VIDEO_MEMORY),
+    gcmDEFINE2TEXT(gcvHAL_IMPORT_VIDEO_MEMORY),
+    gcmDEFINE2TEXT(gcvHAL_QUERY_RESET_TIME_STAMP),
+    gcmDEFINE2TEXT(gcvHAL_READ_REGISTER_EX),
+    gcmDEFINE2TEXT(gcvHAL_WRITE_REGISTER_EX),
+    gcmDEFINE2TEXT(gcvHAL_SYNC_POINT),
+    gcmDEFINE2TEXT(gcvHAL_CREATE_NATIVE_FENCE),
+    gcmDEFINE2TEXT(gcvHAL_DESTROY_MMU),
+    gcmDEFINE2TEXT(gcvHAL_SHBUF),
+};
+#endif
+
+#if gcdGPU_TIMEOUT && gcdINTERRUPT_STATISTIC
+void
+_MonitorTimerFunction(
+    gctPOINTER Data
+    )
+{
+    gckKERNEL kernel = (gckKERNEL)Data;
+    gctUINT32 pendingInterrupt;
+    gctBOOL reset = gcvFALSE;
+    gctUINT32 mask;
+    gctUINT32 advance = kernel->timeOut/2;
+
+
+    if (kernel->monitorTimerStop)
+    {
+        /* Stop. */
+        return;
+    }
+
+    gckOS_AtomGet(kernel->os, kernel->eventObj->interruptCount, &pendingInterrupt);
+
+    if (kernel->monitoring == gcvFALSE)
+    {
+        if (pendingInterrupt)
+        {
+            /* Begin to mointor GPU state. */
+            kernel->monitoring = gcvTRUE;
+
+            /* Record current state. */
+            kernel->lastCommitStamp = kernel->eventObj->lastCommitStamp;
+            kernel->restoreAddress  = kernel->hardware->lastWaitLink;
+            gcmkVERIFY_OK(gckOS_AtomGet(
+                kernel->os,
+                kernel->hardware->pendingEvent,
+                &kernel->restoreMask
+                ));
+
+            /* Clear timeout. */
+            kernel->timer = 0;
+        }
+    }
+    else
+    {
+        if (pendingInterrupt)
+        {
+            gcmkVERIFY_OK(gckOS_AtomGet(
+                kernel->os,
+                kernel->hardware->pendingEvent,
+                &mask
+                ));
+
+            if (kernel->eventObj->lastCommitStamp == kernel->lastCommitStamp
+             && kernel->hardware->lastWaitLink    == kernel->restoreAddress
+             && mask                              == kernel->restoreMask
+            )
+            {
+                /* GPU state is not changed, accumlate timeout. */
+                kernel->timer += advance;
+
+                if (kernel->timer >= kernel->timeOut)
+                {
+                    /* GPU stuck, trigger reset. */
+                    reset = gcvTRUE;
+                }
+            }
+            else
+            {
+                /* GPU state changed, cancel current timeout.*/
+                kernel->monitoring = gcvFALSE;
+            }
+        }
+        else
+        {
+            /* GPU finish all jobs, cancel current timeout*/
+            kernel->monitoring = gcvFALSE;
+        }
+    }
+
+    if (reset)
+    {
+        gckKERNEL_Recovery(kernel);
+
+        /* Work in this timeout is done. */
+        kernel->monitoring = gcvFALSE;
+    }
+
+    gcmkVERIFY_OK(gckOS_StartTimer(kernel->os, kernel->monitorTimer, advance));
+}
+#endif
+
+#if gcdPROCESS_ADDRESS_SPACE
+gceSTATUS
+_MapCommandBuffer(
+    IN gckKERNEL Kernel
+    )
+{
+    gceSTATUS status;
+    gctUINT32 i;
+    gctUINT32 physical;
+    gckMMU mmu;
+
+    gcmkONERROR(gckKERNEL_GetProcessMMU(Kernel, &mmu));
+
+    for (i = 0; i < gcdCOMMAND_QUEUES; i++)
+    {
+        gcmkONERROR(gckOS_GetPhysicalAddress(
+            Kernel->os,
+            Kernel->command->queues[i].logical,
+            &physical
+            ));
+
+        gcmkONERROR(gckMMU_FlatMapping(mmu, physical));
+    }
+
+    return gcvSTATUS_OK;
+
+OnError:
+    return status;
+}
+#endif
+
+void
+_DumpDriverConfigure(
+    IN gckKERNEL Kernel
+    )
+{
+    gcmkPRINT_N(0, "**************************\n");
+    gcmkPRINT_N(0, "***   GPU DRV CONFIG   ***\n");
+    gcmkPRINT_N(0, "**************************\n");
+
+    gcmkPRINT("Galcore version %d.%d.%d.%d\n",
+              gcvVERSION_MAJOR, gcvVERSION_MINOR, gcvVERSION_PATCH, gcvVERSION_BUILD);
+
+    gckOS_DumpParam();
+}
+
+void
+_DumpState(
+    IN gckKERNEL Kernel
+    )
+{
+    /* Dump GPU Debug registers. */
+    gcmkVERIFY_OK(gckHARDWARE_DumpGPUState(Kernel->hardware));
+
+    gcmkVERIFY_OK(gckCOMMAND_DumpExecutingBuffer(Kernel->command));
+
+    /* Dump Pending event. */
+    gcmkVERIFY_OK(gckEVENT_Dump(Kernel->eventObj));
+
+    /* Dump Process DB. */
+    gcmkVERIFY_OK(gckKERNEL_DumpProcessDB(Kernel));
+
+#if gcdRECORD_COMMAND
+    /* Dump record. */
+    gckRECORDER_Dump(Kernel->command->recorder);
+#endif
+}
+
+/*******************************************************************************
+**
+**  gckKERNEL_Construct
+**
+**  Construct a new gckKERNEL object.
+**
+**  INPUT:
+**
+**      gckOS Os
+**          Pointer to an gckOS object.
+**
+**      gceCORE Core
+**          Specified core.
+**
+**      IN gctPOINTER Context
+**          Pointer to a driver defined context.
+**
+**      IN gckDB SharedDB,
+**          Pointer to a shared DB.
+**
+**  OUTPUT:
+**
+**      gckKERNEL * Kernel
+**          Pointer to a variable that will hold the pointer to the gckKERNEL
+**          object.
+*/
+
+gceSTATUS
+gckKERNEL_Construct(
+    IN gckOS Os,
+    IN gceCORE Core,
+    IN gctPOINTER Context,
+    IN gckDB SharedDB,
+    OUT gckKERNEL * Kernel
+    )
+{
+    gckKERNEL kernel = gcvNULL;
+    gceSTATUS status;
+    gctSIZE_T i;
+    gctPOINTER pointer = gcvNULL;
+
+    gcmkHEADER_ARG("Os=0x%x Context=0x%x", Os, Context);
+
+    /* Verify the arguments. */
+    gcmkVERIFY_OBJECT(Os, gcvOBJ_OS);
+    gcmkVERIFY_ARGUMENT(Kernel != gcvNULL);
+
+    /* Allocate the gckKERNEL object. */
+    gcmkONERROR(gckOS_Allocate(Os,
+                               gcmSIZEOF(struct _gckKERNEL),
+                               &pointer));
+
+    kernel = pointer;
+
+    /* Zero the object pointers. */
+    kernel->hardware     = gcvNULL;
+    kernel->command      = gcvNULL;
+    kernel->eventObj     = gcvNULL;
+    kernel->mmu          = gcvNULL;
+#if gcdDVFS
+    kernel->dvfs         = gcvNULL;
+#endif
+    kernel->monitorTimer = gcvNULL;
+
+    /* Initialize the gckKERNEL object. */
+    kernel->object.type = gcvOBJ_KERNEL;
+    kernel->os          = Os;
+    kernel->core        = Core;
+
+    if (SharedDB == gcvNULL)
+    {
+        gcmkONERROR(gckOS_Allocate(Os,
+                                   gcmSIZEOF(struct _gckDB),
+                                   &pointer));
+
+        kernel->db               = pointer;
+        kernel->dbCreated        = gcvTRUE;
+        kernel->db->freeDatabase = gcvNULL;
+        kernel->db->freeRecord   = gcvNULL;
+        kernel->db->dbMutex      = gcvNULL;
+        kernel->db->lastDatabase = gcvNULL;
+        kernel->db->idleTime     = 0;
+        kernel->db->lastIdle     = 0;
+        kernel->db->lastSlowdown = 0;
+
+        for (i = 0; i < gcmCOUNTOF(kernel->db->db); ++i)
+        {
+            kernel->db->db[i] = gcvNULL;
+        }
+
+        /* Construct a database mutex. */
+        gcmkONERROR(gckOS_CreateMutex(Os, &kernel->db->dbMutex));
+
+        /* Construct a video memory name database. */
+        gcmkONERROR(gckKERNEL_CreateIntegerDatabase(kernel, &kernel->db->nameDatabase));
+
+        /* Construct a video memory name database mutex. */
+        gcmkONERROR(gckOS_CreateMutex(Os, &kernel->db->nameDatabaseMutex));
+
+        /* Construct a pointer name database. */
+        gcmkONERROR(gckKERNEL_CreateIntegerDatabase(kernel, &kernel->db->pointerDatabase));
+
+        /* Construct a pointer name database mutex. */
+        gcmkONERROR(gckOS_CreateMutex(Os, &kernel->db->pointerDatabaseMutex));
+    }
+    else
+    {
+        kernel->db               = SharedDB;
+        kernel->dbCreated        = gcvFALSE;
+    }
+
+    for (i = 0; i < gcmCOUNTOF(kernel->timers); ++i)
+    {
+        kernel->timers[i].startTime = 0;
+        kernel->timers[i].stopTime = 0;
+    }
+
+    /* Save context. */
+    kernel->context = Context;
+
+    /* Construct atom holding number of clients. */
+    kernel->atomClients = gcvNULL;
+    gcmkONERROR(gckOS_AtomConstruct(Os, &kernel->atomClients));
+
+    {
+        /* Construct the gckHARDWARE object. */
+        gcmkONERROR(
+            gckHARDWARE_Construct(Os, kernel->core, &kernel->hardware));
+
+        /* Set pointer to gckKERNEL object in gckHARDWARE object. */
+        kernel->hardware->kernel = kernel;
+
+        kernel->timeOut = kernel->hardware->type == gcvHARDWARE_2D
+                        ? gcdGPU_2D_TIMEOUT
+                        : gcdGPU_TIMEOUT
+                        ;
+
+        /* Initialize virtual command buffer. */
+        /* TODO: Remove platform limitation after porting. */
+#if (defined(LINUX) || defined(__QNXNTO__)) && !gcdALLOC_CMD_FROM_RESERVE
+        kernel->virtualCommandBuffer = gcvTRUE;
+#else
+        kernel->virtualCommandBuffer = gcvFALSE;
+#endif
+
+
+        /* Construct the gckCOMMAND object. */
+        gcmkONERROR(
+            gckCOMMAND_Construct(kernel, &kernel->command));
+
+        /* Construct the gckEVENT object. */
+        gcmkONERROR(
+            gckEVENT_Construct(kernel, &kernel->eventObj));
+
+        /* Construct the gckMMU object. */
+        gcmkONERROR(
+            gckMMU_Construct(kernel, gcdMMU_SIZE, &kernel->mmu));
+
+        gcmkVERIFY_OK(gckOS_GetTime(&kernel->resetTimeStamp));
+
+        gcmkONERROR(gckHARDWARE_PrepareFunctions(kernel->hardware));
+
+        /* Initialize the hardware. */
+        gcmkONERROR(
+            gckHARDWARE_InitializeHardware(kernel->hardware));
+
+#if gcdDVFS
+        if (gckHARDWARE_IsFeatureAvailable(kernel->hardware,
+                                           gcvFEATURE_DYNAMIC_FREQUENCY_SCALING))
+        {
+            gcmkONERROR(gckDVFS_Construct(kernel->hardware, &kernel->dvfs));
+            gcmkONERROR(gckDVFS_Start(kernel->dvfs));
+        }
+#endif
+    }
+
+#if VIVANTE_PROFILER
+    /* Initialize profile setting */
+    kernel->profileEnable = gcvFALSE;
+    kernel->profileCleanRegister = gcvTRUE;
+#endif
+
+#if gcdANDROID_NATIVE_FENCE_SYNC
+    gcmkONERROR(gckOS_CreateSyncTimeline(Os, &kernel->timeline));
+#endif
+
+    kernel->recovery      = gcvTRUE;
+    kernel->stuckDump     = gcvSTUCK_DUMP_NONE;
+
+    kernel->virtualBufferHead =
+    kernel->virtualBufferTail = gcvNULL;
+
+    gcmkONERROR(
+        gckOS_CreateMutex(Os, (gctPOINTER)&kernel->virtualBufferLock));
+
+
+#if gcdGPU_TIMEOUT && gcdINTERRUPT_STATISTIC
+    if (kernel->timeOut)
+    {
+        gcmkVERIFY_OK(gckOS_CreateTimer(
+            Os,
+            (gctTIMERFUNCTION)_MonitorTimerFunction,
+            (gctPOINTER)kernel,
+            &kernel->monitorTimer
+            ));
+
+        kernel->monitoring  = gcvFALSE;
+
+        kernel->monitorTimerStop = gcvFALSE;
+
+        gcmkVERIFY_OK(gckOS_StartTimer(
+            Os,
+            kernel->monitorTimer,
+            100
+            ));
+    }
+#endif
+
+    /* Return pointer to the gckKERNEL object. */
+    *Kernel = kernel;
+
+    /* Success. */
+    gcmkFOOTER_ARG("*Kernel=0x%x", *Kernel);
+    return gcvSTATUS_OK;
+
+OnError:
+    if (kernel != gcvNULL)
+    {
+        {
+            if (kernel->eventObj != gcvNULL)
+            {
+                gcmkVERIFY_OK(gckEVENT_Destroy(kernel->eventObj));
+            }
+
+            if (kernel->command != gcvNULL)
+            {
+            gcmkVERIFY_OK(gckCOMMAND_Destroy(kernel->command));
+            }
+
+            if (kernel->hardware != gcvNULL)
+            {
+                /* Turn off the power. */
+                gcmkVERIFY_OK(gckOS_SetGPUPower(kernel->hardware->os,
+                                                kernel->hardware->core,
+                                                gcvFALSE,
+                                                gcvFALSE));
+                gcmkVERIFY_OK(gckHARDWARE_Destroy(kernel->hardware));
+            }
+        }
+
+        if (kernel->atomClients != gcvNULL)
+        {
+            gcmkVERIFY_OK(gckOS_AtomDestroy(Os, kernel->atomClients));
+        }
+
+        if (kernel->dbCreated && kernel->db != gcvNULL)
+        {
+            if (kernel->db->dbMutex != gcvNULL)
+            {
+                /* Destroy the database mutex. */
+                gcmkVERIFY_OK(gckOS_DeleteMutex(Os, kernel->db->dbMutex));
+            }
+
+            gcmkVERIFY_OK(gcmkOS_SAFE_FREE(Os, kernel->db));
+        }
+
+        if (kernel->virtualBufferLock != gcvNULL)
+        {
+            /* Destroy the virtual command buffer mutex. */
+            gcmkVERIFY_OK(gckOS_DeleteMutex(Os, kernel->virtualBufferLock));
+        }
+
+#if gcdDVFS
+        if (kernel->dvfs)
+        {
+            gcmkVERIFY_OK(gckDVFS_Stop(kernel->dvfs));
+            gcmkVERIFY_OK(gckDVFS_Destroy(kernel->dvfs));
+        }
+#endif
+
+#if gcdANDROID_NATIVE_FENCE_SYNC
+        if (kernel->timeline)
+        {
+            gcmkVERIFY_OK(gckOS_DestroySyncTimeline(Os, kernel->timeline));
+        }
+#endif
+
+        if (kernel->monitorTimer)
+        {
+            gcmkVERIFY_OK(gckOS_StopTimer(Os, kernel->monitorTimer));
+            gcmkVERIFY_OK(gckOS_DestroyTimer(Os, kernel->monitorTimer));
+        }
+
+        gcmkVERIFY_OK(gcmkOS_SAFE_FREE(Os, kernel));
+    }
+
+    /* Return the error. */
+    gcmkFOOTER();
+    return status;
+}
+
+/*******************************************************************************
+**
+**  gckKERNEL_Destroy
+**
+**  Destroy an gckKERNEL object.
+**
+**  INPUT:
+**
+**      gckKERNEL Kernel
+**          Pointer to an gckKERNEL object to destroy.
+**
+**  OUTPUT:
+**
+**      Nothing.
+*/
+gceSTATUS
+gckKERNEL_Destroy(
+    IN gckKERNEL Kernel
+    )
+{
+    gctSIZE_T i;
+    gcsDATABASE_PTR database, databaseNext;
+    gcsDATABASE_RECORD_PTR record, recordNext;
+
+    gcmkHEADER_ARG("Kernel=0x%x", Kernel);
+
+    /* Verify the arguments. */
+    gcmkVERIFY_OBJECT(Kernel, gcvOBJ_KERNEL);
+#if QNX_SINGLE_THREADED_DEBUGGING
+    gcmkVERIFY_OK(gckOS_DeleteMutex(Kernel->os, Kernel->debugMutex));
+#endif
+
+    /* Destroy the database. */
+    if (Kernel->dbCreated)
+    {
+        for (i = 0; i < gcmCOUNTOF(Kernel->db->db); ++i)
+        {
+            if (Kernel->db->db[i] != gcvNULL)
+            {
+                gcmkVERIFY_OK(
+                    gckKERNEL_DestroyProcessDB(Kernel, Kernel->db->db[i]->processID));
+            }
+        }
+
+        /* Free all databases. */
+        for (database = Kernel->db->freeDatabase;
+             database != gcvNULL;
+             database = databaseNext)
+        {
+            databaseNext = database->next;
+
+            gcmkVERIFY_OK(gckOS_DeleteMutex(Kernel->os, database->counterMutex));
+            gcmkVERIFY_OK(gcmkOS_SAFE_FREE(Kernel->os, database));
+        }
+
+        if (Kernel->db->lastDatabase != gcvNULL)
+        {
+            gcmkVERIFY_OK(gckOS_DeleteMutex(Kernel->os, Kernel->db->lastDatabase->counterMutex));
+            gcmkVERIFY_OK(gcmkOS_SAFE_FREE(Kernel->os, Kernel->db->lastDatabase));
+        }
+
+        /* Free all database records. */
+        for (record = Kernel->db->freeRecord; record != gcvNULL; record = recordNext)
+        {
+            recordNext = record->next;
+            gcmkVERIFY_OK(gcmkOS_SAFE_FREE(Kernel->os, record));
+        }
+
+        /* Destroy the database mutex. */
+        gcmkVERIFY_OK(gckOS_DeleteMutex(Kernel->os, Kernel->db->dbMutex));
+
+        /* Destroy video memory name database. */
+        gcmkVERIFY_OK(gckKERNEL_DestroyIntegerDatabase(Kernel, Kernel->db->nameDatabase));
+
+        /* Destroy video memory name database mutex. */
+        gcmkVERIFY_OK(gckOS_DeleteMutex(Kernel->os, Kernel->db->nameDatabaseMutex));
+
+
+        /* Destroy id-pointer database. */
+        gcmkVERIFY_OK(gckKERNEL_DestroyIntegerDatabase(Kernel, Kernel->db->pointerDatabase));
+
+        /* Destroy id-pointer database mutex. */
+        gcmkVERIFY_OK(gckOS_DeleteMutex(Kernel->os, Kernel->db->pointerDatabaseMutex));
+
+        /* Destroy the database. */
+        gcmkVERIFY_OK(gcmkOS_SAFE_FREE(Kernel->os, Kernel->db));
+
+        /* Notify stuck timer to quit. */
+        Kernel->monitorTimerStop = gcvTRUE;
+    }
+
+    {
+        /* Destroy the gckMMU object. */
+        gcmkVERIFY_OK(gckMMU_Destroy(Kernel->mmu));
+
+        /* Destroy the gckCOMMNAND object. */
+        gcmkVERIFY_OK(gckCOMMAND_Destroy(Kernel->command));
+
+        /* Destroy the gckEVENT object. */
+        gcmkVERIFY_OK(gckEVENT_Destroy(Kernel->eventObj));
+
+        /* Destroy the gckHARDWARE object. */
+        gcmkVERIFY_OK(gckHARDWARE_Destroy(Kernel->hardware));
+    }
+
+    /* Detsroy the client atom. */
+    gcmkVERIFY_OK(gckOS_AtomDestroy(Kernel->os, Kernel->atomClients));
+
+    gcmkVERIFY_OK(gckOS_DeleteMutex(Kernel->os, Kernel->virtualBufferLock));
+
+#if gcdDVFS
+    if (Kernel->dvfs)
+    {
+        gcmkVERIFY_OK(gckDVFS_Stop(Kernel->dvfs));
+        gcmkVERIFY_OK(gckDVFS_Destroy(Kernel->dvfs));
+    }
+#endif
+
+#if gcdANDROID_NATIVE_FENCE_SYNC
+    gcmkVERIFY_OK(gckOS_DestroySyncTimeline(Kernel->os, Kernel->timeline));
+#endif
+
+
+    if (Kernel->monitorTimer)
+    {
+        gcmkVERIFY_OK(gckOS_StopTimer(Kernel->os, Kernel->monitorTimer));
+        gcmkVERIFY_OK(gckOS_DestroyTimer(Kernel->os, Kernel->monitorTimer));
+    }
+
+    /* Mark the gckKERNEL object as unknown. */
+    Kernel->object.type = gcvOBJ_UNKNOWN;
+
+    /* Free the gckKERNEL object. */
+    gcmkVERIFY_OK(gcmkOS_SAFE_FREE(Kernel->os, Kernel));
+
+    /* Success. */
+    gcmkFOOTER_NO();
+    return gcvSTATUS_OK;
+}
+
+/*******************************************************************************
+**
+**  _AllocateMemory
+**
+**  Private function to walk all required memory pools to allocate the requested
+**  amount of video memory.
+**
+**  INPUT:
+**
+**      gckKERNEL Kernel
+**          Pointer to an gckKERNEL object.
+**
+**      gcsHAL_INTERFACE * Interface
+**          Pointer to a gcsHAL_INTERFACE structure that defines the command to
+**          be dispatched.
+**
+**  OUTPUT:
+**
+**      gcsHAL_INTERFACE * Interface
+**          Pointer to a gcsHAL_INTERFACE structure that receives any data to be
+**          returned.
+*/
+gceSTATUS
+gckKERNEL_AllocateLinearMemory(
+    IN gckKERNEL Kernel,
+    IN gctUINT32 ProcessID,
+    IN OUT gcePOOL * Pool,
+    IN gctSIZE_T Bytes,
+    IN gctUINT32 Alignment,
+    IN gceSURF_TYPE Type,
+    IN gctUINT32 Flag,
+    OUT gctUINT32 * Node
+    )
+{
+    gcePOOL pool;
+    gceSTATUS status;
+    gckVIDMEM videoMemory;
+    gctINT loopCount;
+    gcuVIDMEM_NODE_PTR node = gcvNULL;
+    gctBOOL tileStatusInVirtual;
+    gctBOOL contiguous = gcvFALSE;
+    gctBOOL cacheable = gcvFALSE;
+    gctSIZE_T bytes = Bytes;
+    gctUINT32 handle = 0;
+    gceDATABASE_TYPE type;
+
+    gcmkHEADER_ARG("Kernel=0x%x *Pool=%d Bytes=%lu Alignment=%lu Type=%d",
+                   Kernel, *Pool, Bytes, Alignment, Type);
+
+    gcmkVERIFY_ARGUMENT(Pool != gcvNULL);
+    gcmkVERIFY_ARGUMENT(Bytes != 0);
+
+     /* Get basic type. */
+     Type &= 0xFF;
+
+    /* Check flags. */
+    contiguous = Flag & gcvALLOC_FLAG_CONTIGUOUS;
+    cacheable  = Flag & gcvALLOC_FLAG_CACHEABLE;
+
+AllocateMemory:
+
+    /* Get initial pool. */
+    switch (pool = *Pool)
+    {
+    case gcvPOOL_DEFAULT:
+    case gcvPOOL_LOCAL:
+        pool      = gcvPOOL_LOCAL_INTERNAL;
+        loopCount = (gctINT) gcvPOOL_NUMBER_OF_POOLS;
+        break;
+
+    case gcvPOOL_UNIFIED:
+        pool      = gcvPOOL_SYSTEM;
+        loopCount = (gctINT) gcvPOOL_NUMBER_OF_POOLS;
+        break;
+
+    case gcvPOOL_CONTIGUOUS:
+        loopCount = (gctINT) gcvPOOL_NUMBER_OF_POOLS;
+        break;
+
+    default:
+        loopCount = 1;
+        break;
+    }
+
+    while (loopCount-- > 0)
+    {
+        if (pool == gcvPOOL_VIRTUAL)
+        {
+            /* Create a gcuVIDMEM_NODE for virtual memory. */
+            gcmkONERROR(
+                gckVIDMEM_ConstructVirtual(Kernel, Flag | gcvALLOC_FLAG_NON_CONTIGUOUS, Bytes, &node));
+
+            bytes = node->Virtual.bytes;
+            node->Virtual.type = Type;
+
+            /* Success. */
+            break;
+        }
+
+        else
+        if (pool == gcvPOOL_CONTIGUOUS)
+        {
+#if gcdCONTIGUOUS_SIZE_LIMIT
+            if (Bytes > gcdCONTIGUOUS_SIZE_LIMIT && contiguous == gcvFALSE)
+            {
+                status = gcvSTATUS_OUT_OF_MEMORY;
+            }
+            else
+#endif
+            {
+                /* Create a gcuVIDMEM_NODE from contiguous memory. */
+                status = gckVIDMEM_ConstructVirtual(
+                            Kernel,
+                            Flag | gcvALLOC_FLAG_CONTIGUOUS,
+                            Bytes,
+                            &node);
+            }
+
+            if (gcmIS_SUCCESS(status))
+            {
+                bytes = node->Virtual.bytes;
+                node->Virtual.type = Type;
+
+                /* Memory allocated. */
+                break;
+            }
+        }
+
+        else
+        /* gcvPOOL_SYSTEM can't be cacheable. */
+        if (cacheable == gcvFALSE)
+        {
+            /* Get pointer to gckVIDMEM object for pool. */
+            status = gckKERNEL_GetVideoMemoryPool(Kernel, pool, &videoMemory);
+
+            if (gcmIS_SUCCESS(status))
+            {
+                /* Allocate memory. */
+#if defined(gcdLINEAR_SIZE_LIMIT)
+                /* 512 KB */
+                if (Bytes > gcdLINEAR_SIZE_LIMIT)
+                {
+                    status = gcvSTATUS_OUT_OF_MEMORY;
+                }
+                else
+#endif
+                {
+                    status = gckVIDMEM_AllocateLinear(Kernel,
+                                                      videoMemory,
+                                                      Bytes,
+                                                      Alignment,
+                                                      Type,
+                                                      (*Pool == gcvPOOL_SYSTEM),
+                                                      &node);
+                }
+
+                if (gcmIS_SUCCESS(status))
+                {
+                    /* Memory allocated. */
+                    node->VidMem.pool = pool;
+                    bytes = node->VidMem.bytes;
+                    break;
+                }
+            }
+        }
+
+        if (pool == gcvPOOL_LOCAL_INTERNAL)
+        {
+            /* Advance to external memory. */
+            pool = gcvPOOL_LOCAL_EXTERNAL;
+        }
+
+        else
+        if (pool == gcvPOOL_LOCAL_EXTERNAL)
+        {
+            /* Advance to contiguous system memory. */
+            pool = gcvPOOL_SYSTEM;
+        }
+
+        else
+        if (pool == gcvPOOL_SYSTEM)
+        {
+            /* Advance to contiguous memory. */
+            pool = gcvPOOL_CONTIGUOUS;
+        }
+
+        else
+        if (pool == gcvPOOL_CONTIGUOUS)
+        {
+            {
+                tileStatusInVirtual =
+                    gckHARDWARE_IsFeatureAvailable(Kernel->hardware,
+                                                   gcvFEATURE_MC20);
+            }
+
+            if (Type == gcvSURF_TILE_STATUS && tileStatusInVirtual != gcvTRUE)
+            {
+                gcmkONERROR(gcvSTATUS_OUT_OF_MEMORY);
+            }
+
+            if (contiguous)
+            {
+                break;
+            }
+
+            /* Advance to virtual memory. */
+            pool = gcvPOOL_VIRTUAL;
+        }
+
+        else
+        {
+            /* Out of pools. */
+            gcmkONERROR(gcvSTATUS_OUT_OF_MEMORY);
+        }
+    }
+
+    if (node == gcvNULL)
+    {
+        if (contiguous)
+        {
+            /* Broadcast OOM message. */
+            status = gckOS_Broadcast(Kernel->os, Kernel->hardware, gcvBROADCAST_OUT_OF_MEMORY);
+
+            if (gcmIS_SUCCESS(status))
+            {
+                /* Get some memory. */
+                gckOS_Delay(gcvNULL, 1);
+                goto AllocateMemory;
+            }
+        }
+
+        /* Nothing allocated. */
+        gcmkONERROR(gcvSTATUS_OUT_OF_MEMORY);
+    }
+
+    /* Allocate handle for this video memory. */
+    gcmkONERROR(
+        gckVIDMEM_NODE_Allocate(Kernel, node, Type, pool, &handle));
+
+    /* Return node and pool used for allocation. */
+    *Node = handle;
+    *Pool = pool;
+
+    /* Encode surface type and pool to database type. */
+    type = gcvDB_VIDEO_MEMORY
+         | (Type << gcdDB_VIDEO_MEMORY_TYPE_SHIFT)
+         | (pool << gcdDB_VIDEO_MEMORY_POOL_SHIFT);
+
+    /* Record in process db. */
+    gcmkONERROR(
+            gckKERNEL_AddProcessDB(Kernel,
+                                   ProcessID,
+                                   type,
+                                   gcmINT2PTR(handle),
+                                   gcvNULL,
+                                   bytes));
+
+    /* Return status. */
+    gcmkFOOTER_ARG("*Pool=%d *Node=0x%x", *Pool, *Node);
+    return gcvSTATUS_OK;
+
+OnError:
+    if (handle)
+    {
+        /* Destroy handle allocated. */
+        gcmkVERIFY_OK(gckVIDMEM_HANDLE_Dereference(Kernel, ProcessID, handle));
+    }
+
+    if (node)
+    {
+        /* Free video memory allocated. */
+        gcmkVERIFY_OK(gckVIDMEM_Free(Kernel, node));
+    }
+
+    /* For some case like chrome with webgl test, it needs too much memory so that it invokes oom_killer
+    * And the case is killed by oom_killer, the user wants not to see the crash and hope the case iteself handles the condition
+    * So the patch reports the out_of_memory to the case */
+    if ( status == gcvSTATUS_OUT_OF_MEMORY && (Flag & gcvALLOC_FLAG_MEMLIMIT) )
+        gcmkPRINT("The running case is out_of_memory");
+
+    /* Return the status. */
+    gcmkFOOTER();
+    return status;
+}
+
+/*******************************************************************************
+**
+**  gckKERNEL_ReleaseVideoMemory
+**
+**  Release handle of a video memory.
+**
+**  INPUT:
+**
+**      gckKERNEL Kernel
+**          Pointer to an gckKERNEL object.
+**
+**      gctUINT32 ProcessID
+**          ProcessID of current process.
+**
+**      gctUINT32 Handle
+**          Handle of video memory.
+**
+**  OUTPUT:
+**
+**          Nothing.
+*/
+gceSTATUS
+gckKERNEL_ReleaseVideoMemory(
+    IN gckKERNEL Kernel,
+    IN gctUINT32 ProcessID,
+    IN gctUINT32 Handle
+    )
+{
+    gceSTATUS status;
+    gckVIDMEM_NODE nodeObject;
+    gceDATABASE_TYPE type;
+
+    gcmkHEADER_ARG("Kernel=0x%08X ProcessID=%d Handle=%d",
+                   Kernel, ProcessID, Handle);
+
+    gcmkONERROR(
+        gckVIDMEM_HANDLE_Lookup(Kernel, ProcessID, Handle, &nodeObject));
+
+    type = gcvDB_VIDEO_MEMORY
+         | (nodeObject->type << gcdDB_VIDEO_MEMORY_TYPE_SHIFT)
+         | (nodeObject->pool << gcdDB_VIDEO_MEMORY_POOL_SHIFT);
+
+    gcmkONERROR(
+        gckKERNEL_RemoveProcessDB(Kernel,
+            ProcessID,
+            type,
+            gcmINT2PTR(Handle)));
+
+    gckVIDMEM_HANDLE_Dereference(Kernel, ProcessID, Handle);
+
+    gckVIDMEM_NODE_Dereference(Kernel, nodeObject);
+
+    gcmkFOOTER_NO();
+    return gcvSTATUS_OK;
+
+OnError:
+    gcmkFOOTER();
+    return status;
+}
+
+/*******************************************************************************
+**
+**  gckKERNEL_LockVideoMemory
+**
+**      Lock a video memory node. It will generate a cpu virtual address used
+**      by software and a GPU address used by GPU.
+**
+**  INPUT:
+**
+**      gckKERNEL Kernel
+**          Pointer to an gckKERNEL object.
+**
+**      gceCORE Core
+**          GPU to which video memory is locked.
+**
+**      gcsHAL_INTERFACE * Interface
+**          Pointer to a gcsHAL_INTERFACE structure that defines the command to
+**          be dispatched.
+**
+**  OUTPUT:
+**
+**      gcsHAL_INTERFACE * Interface
+**          Pointer to a gcsHAL_INTERFACE structure that receives any data to be
+**          returned.
+*/
+gceSTATUS
+gckKERNEL_LockVideoMemory(
+    IN gckKERNEL Kernel,
+    IN gceCORE Core,
+    IN gctUINT32 ProcessID,
+    IN gctBOOL FromUser,
+    IN OUT gcsHAL_INTERFACE * Interface
+    )
+{
+    gceSTATUS status;
+    gckVIDMEM_NODE nodeObject = gcvNULL;
+    gcuVIDMEM_NODE_PTR node   = gcvNULL;
+    gctBOOL locked            = gcvFALSE;
+    gctBOOL asynchronous      = gcvFALSE;
+#ifndef __QNXNTO__
+    gctPOINTER pointer        = gcvNULL;
+#endif
+
+    gcmkHEADER_ARG("Kernel=0x%08X ProcessID=%d",
+                   Kernel, ProcessID);
+
+    gcmkONERROR(
+        gckVIDMEM_HANDLE_LookupAndReference(Kernel,
+                Interface->u.LockVideoMemory.node,
+                &nodeObject));
+
+    node = nodeObject->node;
+
+    Interface->u.LockVideoMemory.gid = 0;
+
+    /* Lock video memory. */
+    gcmkONERROR(
+            gckVIDMEM_Lock(Kernel,
+                nodeObject,
+                Interface->u.LockVideoMemory.cacheable,
+                &Interface->u.LockVideoMemory.address,
+                &Interface->u.LockVideoMemory.gid,
+                &Interface->u.LockVideoMemory.physicalAddress));
+
+    locked = gcvTRUE;
+
+    if (node->VidMem.memory->object.type == gcvOBJ_VIDMEM)
+    {
+        /* Map video memory address into user space. */
+#ifdef __QNXNTO__
+        if (node->VidMem.logical == gcvNULL)
+        {
+            gcmkONERROR(
+                    gckKERNEL_MapVideoMemory(Kernel,
+                        FromUser,
+                        Interface->u.LockVideoMemory.address,
+                        ProcessID,
+                        node->VidMem.bytes,
+                        &node->VidMem.logical));
+        }
+        gcmkASSERT(node->VidMem.logical != gcvNULL);
+
+        Interface->u.LockVideoMemory.memory = gcmPTR_TO_UINT64(node->VidMem.logical);
+#else
+        gcmkONERROR(
+                gckKERNEL_MapVideoMemoryEx(Kernel,
+                    Core,
+                    FromUser,
+                    Interface->u.LockVideoMemory.address,
+                    &pointer));
+
+        Interface->u.LockVideoMemory.memory = gcmPTR_TO_UINT64(pointer);
+#endif
+    }
+    else
+    {
+        Interface->u.LockVideoMemory.memory = gcmPTR_TO_UINT64(node->Virtual.logical);
+
+        /* Success. */
+        status = gcvSTATUS_OK;
+    }
+
+#if gcdPROCESS_ADDRESS_SPACE
+    gcmkONERROR(gckVIDMEM_Node_Lock(
+        Kernel,
+        nodeObject,
+        &Interface->u.LockVideoMemory.address
+        ));
+#endif
+
+
+#if gcdSECURE_USER
+    /* Return logical address as physical address. */
+    Interface->u.LockVideoMemory.address =
+        (gctUINT32)(Interface->u.LockVideoMemory.memory);
+#endif
+    gcmkONERROR(
+        gckKERNEL_AddProcessDB(Kernel,
+            ProcessID, gcvDB_VIDEO_MEMORY_LOCKED,
+            gcmINT2PTR(Interface->u.LockVideoMemory.node),
+            gcvNULL,
+            0));
+
+    gckVIDMEM_HANDLE_Reference(
+        Kernel, ProcessID, (gctUINT32)Interface->u.LockVideoMemory.node);
+
+    gcmkFOOTER_NO();
+    return gcvSTATUS_OK;
+
+OnError:
+    if (locked)
+    {
+        /* Roll back the lock. */
+        gcmkVERIFY_OK(gckVIDMEM_Unlock(Kernel,
+                    nodeObject,
+                    gcvSURF_TYPE_UNKNOWN,
+                    &asynchronous));
+
+        if (gcvTRUE == asynchronous)
+        {
+            /* Bottom Half */
+            gcmkVERIFY_OK(gckVIDMEM_Unlock(Kernel,
+                        nodeObject,
+                        gcvSURF_TYPE_UNKNOWN,
+                        gcvNULL));
+        }
+    }
+
+    if (nodeObject != gcvNULL)
+    {
+        gckVIDMEM_NODE_Dereference(Kernel, nodeObject);
+    }
+
+    gcmkFOOTER();
+    return status;
+}
+
+/*******************************************************************************
+**
+**  gckKERNEL_UnlockVideoMemory
+**
+**      Unlock a video memory node.
+**
+**  INPUT:
+**
+**      gckKERNEL Kernel
+**          Pointer to an gckKERNEL object.
+**
+**      gctUINT32 ProcessID
+**          ProcessID of current process.
+**
+**      gcsHAL_INTERFACE * Interface
+**          Pointer to a gcsHAL_INTERFACE structure that defines the command to
+**          be dispatched.
+**
+**  OUTPUT:
+**
+**      gcsHAL_INTERFACE * Interface
+**          Pointer to a gcsHAL_INTERFACE structure that receives any data to be
+**          returned.
+*/
+gceSTATUS
+gckKERNEL_UnlockVideoMemory(
+    IN gckKERNEL Kernel,
+    IN gctUINT32 ProcessID,
+    IN OUT gcsHAL_INTERFACE * Interface
+    )
+{
+    gceSTATUS status;
+    gckVIDMEM_NODE nodeObject;
+    gcuVIDMEM_NODE_PTR node;
+
+    gcmkHEADER_ARG("Kernel=0x%08X ProcessID=%d",
+                   Kernel, ProcessID);
+
+    gcmkONERROR(gckVIDMEM_HANDLE_Lookup(
+        Kernel,
+        ProcessID,
+        (gctUINT32)Interface->u.UnlockVideoMemory.node,
+        &nodeObject));
+
+    node = nodeObject->node;
+
+    /* Unlock video memory. */
+#if gcdSECURE_USER
+    /* Save node information before it disappears. */
+    if (node->VidMem.memory->object.type == gcvOBJ_VIDMEM)
+    {
+        logical = gcvNULL;
+        bytes   = 0;
+    }
+    else
+    {
+        logical = node->Virtual.logical;
+        bytes   = node->Virtual.bytes;
+    }
+#endif
+
+    /* Unlock video memory. */
+    gcmkONERROR(gckVIDMEM_Unlock(
+        Kernel,
+        nodeObject,
+        Interface->u.UnlockVideoMemory.type,
+        &Interface->u.UnlockVideoMemory.asynchroneous));
+
+#if gcdSECURE_USER
+    /* Flush the translation cache for virtual surfaces. */
+    if (logical != gcvNULL)
+    {
+        gcmkVERIFY_OK(gckKERNEL_FlushTranslationCache(Kernel,
+                    cache,
+                    logical,
+                    bytes));
+    }
+#endif
+
+    gcmkFOOTER_NO();
+    return gcvSTATUS_OK;
+
+OnError:
+    gcmkFOOTER();
+    return status;
+}
+
+gceSTATUS
+gckKERNEL_QueryDatabase(
+    IN gckKERNEL Kernel,
+    IN gctUINT32 ProcessID,
+    IN OUT gcsHAL_INTERFACE * Interface
+    )
+{
+    gceSTATUS status;
+    gctINT i;
+
+    gceDATABASE_TYPE type[3] = {
+        gcvDB_VIDEO_MEMORY | (gcvPOOL_SYSTEM << gcdDB_VIDEO_MEMORY_POOL_SHIFT),
+        gcvDB_VIDEO_MEMORY | (gcvPOOL_CONTIGUOUS << gcdDB_VIDEO_MEMORY_POOL_SHIFT),
+        gcvDB_VIDEO_MEMORY | (gcvPOOL_VIRTUAL << gcdDB_VIDEO_MEMORY_POOL_SHIFT),
+    };
+
+    gcmkHEADER();
+
+    /* Query video memory. */
+    gcmkONERROR(
+        gckKERNEL_QueryProcessDB(Kernel,
+                                 Interface->u.Database.processID,
+                                 !Interface->u.Database.validProcessID,
+                                 gcvDB_VIDEO_MEMORY,
+                                 &Interface->u.Database.vidMem));
+
+    /* Query non-paged memory. */
+    gcmkONERROR(
+        gckKERNEL_QueryProcessDB(Kernel,
+                                 Interface->u.Database.processID,
+                                 !Interface->u.Database.validProcessID,
+                                 gcvDB_NON_PAGED,
+                                 &Interface->u.Database.nonPaged));
+
+    /* Query contiguous memory. */
+    gcmkONERROR(
+        gckKERNEL_QueryProcessDB(Kernel,
+                                 Interface->u.Database.processID,
+                                 !Interface->u.Database.validProcessID,
+                                 gcvDB_CONTIGUOUS,
+                                 &Interface->u.Database.contiguous));
+
+    /* Query GPU idle time. */
+    gcmkONERROR(
+        gckKERNEL_QueryProcessDB(Kernel,
+                                 Interface->u.Database.processID,
+                                 !Interface->u.Database.validProcessID,
+                                 gcvDB_IDLE,
+                                 &Interface->u.Database.gpuIdle));
+    for (i = 0; i < 3; i++)
+    {
+        /* Query each video memory pool. */
+        gcmkONERROR(
+            gckKERNEL_QueryProcessDB(Kernel,
+                                     Interface->u.Database.processID,
+                                     !Interface->u.Database.validProcessID,
+                                     type[i],
+                                     &Interface->u.Database.vidMemPool[i]));
+    }
+
+    /* Query virtual command buffer pool. */
+    gcmkONERROR(
+        gckKERNEL_QueryProcessDB(Kernel,
+                                 Interface->u.Database.processID,
+                                 !Interface->u.Database.validProcessID,
+                                 gcvDB_COMMAND_BUFFER,
+                                 &Interface->u.Database.vidMemPool[2]));
+
+#if gcmIS_DEBUG(gcdDEBUG_TRACE)
+    gckKERNEL_DumpVidMemUsage(Kernel, Interface->u.Database.processID);
+#endif
+
+    gcmkFOOTER_NO();
+    return gcvSTATUS_OK;
+
+OnError:
+    gcmkFOOTER();
+    return status;
+}
+
+gceSTATUS
+gckKERNEL_ConfigPowerManagement(
+    IN gckKERNEL Kernel,
+    IN OUT gcsHAL_INTERFACE * Interface
+)
+{
+    gceSTATUS status;
+    gctBOOL enable = Interface->u.ConfigPowerManagement.enable;
+
+    gcmkHEADER();
+
+    gcmkONERROR(gckHARDWARE_SetPowerManagement(Kernel->hardware, enable));
+
+    if (enable == gcvFALSE)
+    {
+        gcmkONERROR(
+            gckHARDWARE_SetPowerManagementState(Kernel->hardware, gcvPOWER_ON));
+    }
+
+    gcmkFOOTER_NO();
+    return gcvSTATUS_OK;
+
+OnError:
+    gcmkFOOTER();
+    return status;
+}
+
+gceSTATUS
+gckKERNEL_WrapUserMemory(
+    IN gckKERNEL Kernel,
+    IN gctUINT32 ProcessID,
+    IN gcsUSER_MEMORY_DESC_PTR Desc,
+    OUT gctUINT32 * Node
+    )
+{
+    gceSTATUS status;
+    gcuVIDMEM_NODE_PTR node = gcvNULL;
+    gctUINT32 handle;
+    gceDATABASE_TYPE databaseRecordType;
+
+    gcmkHEADER_ARG("Kernel=0x%X Desc=%x", Kernel, Desc);
+
+    gcmkONERROR(gckVIDMEM_ConstructVirtualFromUserMemory(
+        Kernel,
+        Desc,
+        &node
+        ));
+
+    /* Allocate handle for this video memory. */
+    gcmkONERROR(gckVIDMEM_NODE_Allocate(
+        Kernel,
+        node,
+        gcvSURF_BITMAP,
+        gcvPOOL_VIRTUAL,
+        &handle
+        ));
+
+    /* Wrapped node is treated as gcvPOOL_VIRTUAL, but in statistic view,
+    *  it is gcvPOOL_USER.
+    */
+    databaseRecordType
+        = gcvDB_VIDEO_MEMORY
+        | (gcvSURF_BITMAP << gcdDB_VIDEO_MEMORY_TYPE_SHIFT)
+        | (gcvPOOL_USER << gcdDB_VIDEO_MEMORY_POOL_SHIFT)
+        ;
+
+    /* Record in process db. */
+    gcmkONERROR(gckKERNEL_AddProcessDB(
+        Kernel,
+        ProcessID,
+        databaseRecordType,
+        gcmINT2PTR(handle),
+        gcvNULL,
+        node->Virtual.bytes
+        ));
+
+    /* Return handle of the node. */
+    *Node = handle;
+
+    gcmkFOOTER_NO();
+    return gcvSTATUS_OK;
+
+OnError:
+    gcmkFOOTER();
+    return status;
+}
+
+/*******************************************************************************
+**
+**  gckKERNEL_Dispatch
+**
+**  Dispatch a command received from the user HAL layer.
+**
+**  INPUT:
+**
+**      gckKERNEL Kernel
+**          Pointer to an gckKERNEL object.
+**
+**      gctBOOL FromUser
+**          whether the call is from the user space.
+**
+**      gcsHAL_INTERFACE * Interface
+**          Pointer to a gcsHAL_INTERFACE structure that defines the command to
+**          be dispatched.
+**
+**  OUTPUT:
+**
+**      gcsHAL_INTERFACE * Interface
+**          Pointer to a gcsHAL_INTERFACE structure that receives any data to be
+**          returned.
+*/
+gceSTATUS
+gckKERNEL_Dispatch(
+    IN gckKERNEL Kernel,
+    IN gctBOOL FromUser,
+    IN OUT gcsHAL_INTERFACE * Interface
+    )
+{
+    gceSTATUS status = gcvSTATUS_OK;
+    gctPHYS_ADDR physical = gcvNULL;
+    gctSIZE_T bytes;
+    gctPOINTER logical = gcvNULL;
+    gctPOINTER info = gcvNULL;
+    gckCONTEXT context = gcvNULL;
+    gckKERNEL kernel = Kernel;
+    gctUINT32 address;
+    gctUINT32 processID;
+#if gcdSECURE_USER
+    gcskSECURE_CACHE_PTR cache;
+    gctPOINTER logical;
+#endif
+    gctUINT64 paddr = gcvINVALID_ADDRESS;
+#if !USE_NEW_LINUX_SIGNAL
+    gctSIGNAL   signal;
+#endif
+    gckVIRTUAL_COMMAND_BUFFER_PTR buffer;
+
+    gckVIDMEM_NODE nodeObject;
+    gctBOOL powerMutexAcquired = gcvFALSE;
+
+    gcmkHEADER_ARG("Kernel=0x%x FromUser=%d Interface=0x%x",
+                   Kernel, FromUser, Interface);
+
+    /* Verify the arguments. */
+    gcmkVERIFY_OBJECT(Kernel, gcvOBJ_KERNEL);
+    gcmkVERIFY_ARGUMENT(Interface != gcvNULL);
+
+#if gcmIS_DEBUG(gcdDEBUG_TRACE)
+    gcmkTRACE_ZONE(gcvLEVEL_INFO, gcvZONE_KERNEL,
+                   "Dispatching command %d (%s)",
+                   Interface->command, _DispatchText[Interface->command]);
+#endif
+#if QNX_SINGLE_THREADED_DEBUGGING
+    gckOS_AcquireMutex(Kernel->os, Kernel->debugMutex, gcvINFINITE);
+#endif
+
+    /* Get the current process ID. */
+    gcmkONERROR(gckOS_GetProcessID(&processID));
+
+#if gcdSECURE_USER
+    gcmkONERROR(gckKERNEL_GetProcessDBCache(Kernel, processID, &cache));
+#endif
+
+    /* Dispatch on command. */
+    switch (Interface->command)
+    {
+    case gcvHAL_GET_BASE_ADDRESS:
+        /* Get base address. */
+        gcmkONERROR(
+            gckOS_GetBaseAddress(Kernel->os,
+                                 &Interface->u.GetBaseAddress.baseAddress));
+        break;
+
+    case gcvHAL_QUERY_VIDEO_MEMORY:
+        /* Query video memory size. */
+        gcmkONERROR(gckKERNEL_QueryVideoMemory(Kernel, Interface));
+        break;
+
+    case gcvHAL_QUERY_CHIP_IDENTITY:
+        /* Query chip identity. */
+        gcmkONERROR(
+            gckHARDWARE_QueryChipIdentity(
+                Kernel->hardware,
+                &Interface->u.QueryChipIdentity));
+        break;
+
+    case gcvHAL_MAP_MEMORY:
+        physical = gcmINT2PTR(Interface->u.MapMemory.physical);
+
+        /* Map memory. */
+        gcmkONERROR(
+            gckKERNEL_MapMemory(Kernel,
+                                physical,
+                                (gctSIZE_T) Interface->u.MapMemory.bytes,
+                                &logical));
+
+        Interface->u.MapMemory.logical = gcmPTR_TO_UINT64(logical);
+
+        gcmkVERIFY_OK(
+            gckKERNEL_AddProcessDB(Kernel,
+                                   processID, gcvDB_MAP_MEMORY,
+                                   logical,
+                                   physical,
+                                   (gctSIZE_T) Interface->u.MapMemory.bytes));
+        break;
+
+    case gcvHAL_UNMAP_MEMORY:
+        physical = gcmINT2PTR(Interface->u.UnmapMemory.physical);
+
+        gcmkVERIFY_OK(
+            gckKERNEL_RemoveProcessDB(Kernel,
+                                      processID, gcvDB_MAP_MEMORY,
+                                      gcmUINT64_TO_PTR(Interface->u.UnmapMemory.logical)));
+
+        /* Unmap memory. */
+        gcmkONERROR(
+            gckKERNEL_UnmapMemory(Kernel,
+                                  physical,
+                                  (gctSIZE_T) Interface->u.UnmapMemory.bytes,
+                                  gcmUINT64_TO_PTR(Interface->u.UnmapMemory.logical)));
+        break;
+
+    case gcvHAL_ALLOCATE_NON_PAGED_MEMORY:
+        bytes = (gctSIZE_T) Interface->u.AllocateNonPagedMemory.bytes;
+
+        /* Allocate non-paged memory. */
+        gcmkONERROR(
+            gckOS_AllocateNonPagedMemory(
+                Kernel->os,
+                FromUser,
+                &bytes,
+                &physical,
+                &logical));
+
+        Interface->u.AllocateNonPagedMemory.bytes    = bytes;
+        Interface->u.AllocateNonPagedMemory.logical  = gcmPTR_TO_UINT64(logical);
+        Interface->u.AllocateNonPagedMemory.physical = gcmPTR_TO_NAME(physical);
+
+        gcmkVERIFY_OK(
+            gckKERNEL_AddProcessDB(Kernel,
+                                   processID, gcvDB_NON_PAGED,
+                                   logical,
+                                   gcmINT2PTR(Interface->u.AllocateNonPagedMemory.physical),
+                                   bytes));
+        break;
+
+    case gcvHAL_ALLOCATE_VIRTUAL_COMMAND_BUFFER:
+        bytes = (gctSIZE_T) Interface->u.AllocateVirtualCommandBuffer.bytes;
+
+        gcmkONERROR(
+            gckKERNEL_AllocateVirtualCommandBuffer(
+                Kernel,
+                FromUser,
+                &bytes,
+                &physical,
+                &logical));
+
+        Interface->u.AllocateVirtualCommandBuffer.bytes    = bytes;
+        Interface->u.AllocateVirtualCommandBuffer.logical  = gcmPTR_TO_UINT64(logical);
+        Interface->u.AllocateVirtualCommandBuffer.physical = gcmPTR_TO_NAME(physical);
+
+        gcmkVERIFY_OK(
+            gckKERNEL_AddProcessDB(Kernel,
+                                   processID, gcvDB_COMMAND_BUFFER,
+                                   logical,
+                                   gcmINT2PTR(Interface->u.AllocateVirtualCommandBuffer.physical),
+                                   bytes));
+        break;
+
+    case gcvHAL_FREE_NON_PAGED_MEMORY:
+        physical = gcmNAME_TO_PTR(Interface->u.FreeNonPagedMemory.physical);
+
+        gcmkVERIFY_OK(
+            gckKERNEL_RemoveProcessDB(Kernel,
+                                      processID, gcvDB_NON_PAGED,
+                                      gcmUINT64_TO_PTR(Interface->u.FreeNonPagedMemory.logical)));
+
+        /* Unmap user logical out of physical memory first. */
+        gcmkONERROR(gckOS_UnmapUserLogical(Kernel->os,
+                                           physical,
+                                           (gctSIZE_T) Interface->u.FreeNonPagedMemory.bytes,
+                                           gcmUINT64_TO_PTR(Interface->u.FreeNonPagedMemory.logical)));
+
+        /* Free non-paged memory. */
+        gcmkONERROR(
+            gckOS_FreeNonPagedMemory(Kernel->os,
+                                     (gctSIZE_T) Interface->u.FreeNonPagedMemory.bytes,
+                                     physical,
+                                     gcmUINT64_TO_PTR(Interface->u.FreeNonPagedMemory.logical)));
+
+#if gcdSECURE_USER
+        gcmkVERIFY_OK(gckKERNEL_FlushTranslationCache(
+            Kernel,
+            cache,
+            gcmUINT64_TO_PTR(Interface->u.FreeNonPagedMemory.logical),
+            (gctSIZE_T) Interface->u.FreeNonPagedMemory.bytes));
+#endif
+
+        gcmRELEASE_NAME(Interface->u.FreeNonPagedMemory.physical);
+        break;
+
+    case gcvHAL_ALLOCATE_CONTIGUOUS_MEMORY:
+        bytes = (gctSIZE_T) Interface->u.AllocateContiguousMemory.bytes;
+
+        /* Allocate contiguous memory. */
+        gcmkONERROR(gckOS_AllocateContiguous(
+            Kernel->os,
+            FromUser,
+            &bytes,
+            &physical,
+            &logical));
+
+        Interface->u.AllocateContiguousMemory.bytes    = bytes;
+        Interface->u.AllocateContiguousMemory.logical  = gcmPTR_TO_UINT64(logical);
+        Interface->u.AllocateContiguousMemory.physical = gcmPTR_TO_NAME(physical);
+
+        gcmkONERROR(gckHARDWARE_ConvertLogical(
+            Kernel->hardware,
+            logical,
+            gcvTRUE,
+            &Interface->u.AllocateContiguousMemory.address));
+
+        gcmkVERIFY_OK(gckKERNEL_AddProcessDB(
+            Kernel,
+            processID, gcvDB_CONTIGUOUS,
+            logical,
+            gcmINT2PTR(Interface->u.AllocateContiguousMemory.physical),
+            bytes));
+        break;
+
+    case gcvHAL_FREE_CONTIGUOUS_MEMORY:
+        physical = gcmNAME_TO_PTR(Interface->u.FreeContiguousMemory.physical);
+
+        gcmkVERIFY_OK(
+            gckKERNEL_RemoveProcessDB(Kernel,
+                                      processID, gcvDB_CONTIGUOUS,
+                                      gcmUINT64_TO_PTR(Interface->u.FreeNonPagedMemory.logical)));
+
+        /* Unmap user logical out of physical memory first. */
+        gcmkONERROR(gckOS_UnmapUserLogical(Kernel->os,
+                                           physical,
+                                           (gctSIZE_T) Interface->u.FreeContiguousMemory.bytes,
+                                           gcmUINT64_TO_PTR(Interface->u.FreeContiguousMemory.logical)));
+
+        /* Free contiguous memory. */
+        gcmkONERROR(
+            gckOS_FreeContiguous(Kernel->os,
+                                 physical,
+                                 gcmUINT64_TO_PTR(Interface->u.FreeContiguousMemory.logical),
+                                 (gctSIZE_T) Interface->u.FreeContiguousMemory.bytes));
+
+#if gcdSECURE_USER
+        gcmkVERIFY_OK(gckKERNEL_FlushTranslationCache(
+            Kernel,
+            cache,
+            gcmUINT64_TO_PTR(Interface->u.FreeContiguousMemory.logical),
+            (gctSIZE_T) Interface->u.FreeContiguousMemory.bytes));
+#endif
+
+        gcmRELEASE_NAME(Interface->u.FreeContiguousMemory.physical);
+        break;
+
+    case gcvHAL_ALLOCATE_VIDEO_MEMORY:
+
+        gcmkONERROR(gcvSTATUS_NOT_SUPPORTED);
+
+        break;
+
+    case gcvHAL_ALLOCATE_LINEAR_VIDEO_MEMORY:
+        /* Allocate memory. */
+        gcmkONERROR(
+            gckKERNEL_AllocateLinearMemory(Kernel, processID,
+                            &Interface->u.AllocateLinearVideoMemory.pool,
+                            Interface->u.AllocateLinearVideoMemory.bytes,
+                            Interface->u.AllocateLinearVideoMemory.alignment,
+                            Interface->u.AllocateLinearVideoMemory.type,
+                            Interface->u.AllocateLinearVideoMemory.flag,
+                            &Interface->u.AllocateLinearVideoMemory.node));
+        break;
+
+    case gcvHAL_RELEASE_VIDEO_MEMORY:
+        /* Release video memory. */
+        gcmkONERROR(gckKERNEL_ReleaseVideoMemory(
+            Kernel, processID,
+            (gctUINT32)Interface->u.ReleaseVideoMemory.node
+            ));
+        break;
+
+    case gcvHAL_LOCK_VIDEO_MEMORY:
+        /* Lock video memory. */
+        gcmkONERROR(gckKERNEL_LockVideoMemory(Kernel, Kernel->core, processID, FromUser, Interface));
+        break;
+
+    case gcvHAL_UNLOCK_VIDEO_MEMORY:
+        /* Unlock video memory. */
+        gcmkONERROR(gckKERNEL_UnlockVideoMemory(Kernel, processID, Interface));
+        break;
+
+    case gcvHAL_EVENT_COMMIT:
+        /* Commit an event queue. */
+        gcmkONERROR(
+            gckEVENT_Commit(Kernel->eventObj,
+                            gcmUINT64_TO_PTR(Interface->u.Event.queue)));
+        break;
+
+    case gcvHAL_COMMIT:
+        /* Commit a command and context buffer. */
+        gcmkONERROR(
+            gckCOMMAND_Commit(Kernel->command,
+                              Interface->u.Commit.context ?
+                                  gcmNAME_TO_PTR(Interface->u.Commit.context) : gcvNULL,
+                              gcmUINT64_TO_PTR(Interface->u.Commit.commandBuffer),
+                              gcmUINT64_TO_PTR(Interface->u.Commit.delta),
+                              gcmUINT64_TO_PTR(Interface->u.Commit.queue),
+                              processID));
+
+        break;
+
+    case gcvHAL_STALL:
+        /* Stall the command queue. */
+        gcmkONERROR(gckCOMMAND_Stall(Kernel->command, gcvFALSE));
+        break;
+
+    case gcvHAL_MAP_USER_MEMORY:
+        /* Map user memory to DMA. */
+        gcmkONERROR(
+            gckOS_MapUserMemory(Kernel->os,
+                                Kernel->core,
+                                gcmUINT64_TO_PTR(Interface->u.MapUserMemory.memory),
+                                Interface->u.MapUserMemory.physical,
+                                (gctSIZE_T) Interface->u.MapUserMemory.size,
+                                &info,
+                                &Interface->u.MapUserMemory.address));
+
+        Interface->u.MapUserMemory.info = gcmPTR_TO_NAME(info);
+
+        gcmkVERIFY_OK(
+            gckKERNEL_AddProcessDB(Kernel,
+                                   processID, gcvDB_MAP_USER_MEMORY,
+                                   gcmINT2PTR(Interface->u.MapUserMemory.info),
+                                   gcmUINT64_TO_PTR(Interface->u.MapUserMemory.memory),
+                                   (gctSIZE_T) Interface->u.MapUserMemory.size));
+        break;
+
+    case gcvHAL_UNMAP_USER_MEMORY:
+        address = Interface->u.UnmapUserMemory.address;
+        info = gcmNAME_TO_PTR(Interface->u.UnmapUserMemory.info);
+
+        gcmkVERIFY_OK(
+            gckKERNEL_RemoveProcessDB(Kernel,
+                                      processID, gcvDB_MAP_USER_MEMORY,
+                                      gcmINT2PTR(Interface->u.UnmapUserMemory.info)));
+        /* Unmap user memory. */
+        gcmkONERROR(
+            gckOS_UnmapUserMemory(Kernel->os,
+                                  Kernel->core,
+                                  gcmUINT64_TO_PTR(Interface->u.UnmapUserMemory.memory),
+                                  (gctSIZE_T) Interface->u.UnmapUserMemory.size,
+                                  info,
+                                  address));
+
+#if gcdSECURE_USER
+        gcmkVERIFY_OK(gckKERNEL_FlushTranslationCache(
+            Kernel,
+            cache,
+            gcmUINT64_TO_PTR(Interface->u.UnmapUserMemory.memory),
+            (gctSIZE_T) Interface->u.UnmapUserMemory.size));
+#endif
+
+        gcmRELEASE_NAME(Interface->u.UnmapUserMemory.info);
+        break;
+
+#if !USE_NEW_LINUX_SIGNAL
+    case gcvHAL_USER_SIGNAL:
+        /* Dispatch depends on the user signal subcommands. */
+        switch(Interface->u.UserSignal.command)
+        {
+        case gcvUSER_SIGNAL_CREATE:
+            /* Create a signal used in the user space. */
+            gcmkONERROR(
+                gckOS_CreateUserSignal(Kernel->os,
+                                       Interface->u.UserSignal.manualReset,
+                                       &Interface->u.UserSignal.id));
+
+            gcmkVERIFY_OK(
+                gckKERNEL_AddProcessDB(Kernel,
+                                       processID, gcvDB_SIGNAL,
+                                       gcmINT2PTR(Interface->u.UserSignal.id),
+                                       gcvNULL,
+                                       0));
+            break;
+
+        case gcvUSER_SIGNAL_DESTROY:
+            gcmkVERIFY_OK(gckKERNEL_RemoveProcessDB(
+                Kernel,
+                processID, gcvDB_SIGNAL,
+                gcmINT2PTR(Interface->u.UserSignal.id)));
+
+            /* Destroy the signal. */
+            gcmkONERROR(
+                gckOS_DestroyUserSignal(Kernel->os,
+                                        Interface->u.UserSignal.id));
+            break;
+
+        case gcvUSER_SIGNAL_SIGNAL:
+            /* Signal the signal. */
+            gcmkONERROR(
+                gckOS_SignalUserSignal(Kernel->os,
+                                       Interface->u.UserSignal.id,
+                                       Interface->u.UserSignal.state));
+            break;
+
+        case gcvUSER_SIGNAL_WAIT:
+            /* Wait on the signal. */
+            status = gckOS_WaitUserSignal(Kernel->os,
+                                          Interface->u.UserSignal.id,
+                                          Interface->u.UserSignal.wait);
+
+            break;
+
+        case gcvUSER_SIGNAL_MAP:
+            gcmkONERROR(
+                gckOS_MapSignal(Kernel->os,
+                               (gctSIGNAL)(gctUINTPTR_T)Interface->u.UserSignal.id,
+                               (gctHANDLE)(gctUINTPTR_T)processID,
+                               &signal));
+
+            gcmkVERIFY_OK(
+                gckKERNEL_AddProcessDB(Kernel,
+                                       processID, gcvDB_SIGNAL,
+                                       gcmINT2PTR(Interface->u.UserSignal.id),
+                                       gcvNULL,
+                                       0));
+            break;
+
+        case gcvUSER_SIGNAL_UNMAP:
+            gcmkVERIFY_OK(gckKERNEL_RemoveProcessDB(
+                Kernel,
+                processID, gcvDB_SIGNAL,
+                gcmINT2PTR(Interface->u.UserSignal.id)));
+
+            /* Destroy the signal. */
+            gcmkONERROR(
+                gckOS_DestroyUserSignal(Kernel->os,
+                                        Interface->u.UserSignal.id));
+            break;
+
+        default:
+            /* Invalid user signal command. */
+            gcmkONERROR(gcvSTATUS_INVALID_ARGUMENT);
+        }
+        break;
+#endif
+
+    case gcvHAL_SET_POWER_MANAGEMENT_STATE:
+        /* Set the power management state. */
+        gcmkONERROR(
+            gckHARDWARE_SetPowerManagementState(
+                Kernel->hardware,
+                Interface->u.SetPowerManagement.state));
+        break;
+
+    case gcvHAL_QUERY_POWER_MANAGEMENT_STATE:
+        /* Chip is not idle. */
+        Interface->u.QueryPowerManagement.isIdle = gcvFALSE;
+
+        /* Query the power management state. */
+        gcmkONERROR(gckHARDWARE_QueryPowerManagementState(
+            Kernel->hardware,
+            &Interface->u.QueryPowerManagement.state));
+
+        /* Query the idle state. */
+        gcmkONERROR(
+            gckHARDWARE_QueryIdle(Kernel->hardware,
+                                  &Interface->u.QueryPowerManagement.isIdle));
+        break;
+
+    case gcvHAL_READ_REGISTER:
+#if gcdREGISTER_ACCESS_FROM_USER
+        {
+            gceCHIPPOWERSTATE power;
+
+            gcmkONERROR(gckOS_AcquireMutex(Kernel->os, Kernel->hardware->powerMutex, gcvINFINITE));
+            powerMutexAcquired = gcvTRUE;
+            gcmkONERROR(gckHARDWARE_QueryPowerManagementState(Kernel->hardware,
+                                                              &power));
+            if (power == gcvPOWER_ON)
+            {
+                /* Read a register. */
+                gcmkONERROR(gckOS_ReadRegisterEx(
+                    Kernel->os,
+                    Kernel->core,
+                    Interface->u.ReadRegisterData.address,
+                    &Interface->u.ReadRegisterData.data));
+            }
+            else
+            {
+                /* Chip is in power-state. */
+                Interface->u.ReadRegisterData.data = 0;
+                status = gcvSTATUS_CHIP_NOT_READY;
+            }
+            gcmkONERROR(gckOS_ReleaseMutex(Kernel->os, Kernel->hardware->powerMutex));
+            powerMutexAcquired = gcvFALSE;
+        }
+#else
+        /* No access from user land to read registers. */
+        Interface->u.ReadRegisterData.data = 0;
+        status = gcvSTATUS_NOT_SUPPORTED;
+#endif
+        break;
+
+
+    case gcvHAL_WRITE_REGISTER:
+#if gcdREGISTER_ACCESS_FROM_USER
+        {
+            gceCHIPPOWERSTATE power;
+
+            gcmkONERROR(gckOS_AcquireMutex(Kernel->os, Kernel->hardware->powerMutex, gcvINFINITE));
+            powerMutexAcquired = gcvTRUE;
+            gcmkONERROR(gckHARDWARE_QueryPowerManagementState(Kernel->hardware,
+                                                                  &power));
+            if (power == gcvPOWER_ON)
+            {
+                /* Write a register. */
+                gcmkONERROR(
+                    gckOS_WriteRegisterEx(Kernel->os,
+                                          Kernel->core,
+                                          Interface->u.WriteRegisterData.address,
+                                          Interface->u.WriteRegisterData.data));
+            }
+            else
+            {
+                /* Chip is in power-state. */
+                Interface->u.WriteRegisterData.data = 0;
+                status = gcvSTATUS_CHIP_NOT_READY;
+            }
+            gcmkONERROR(gckOS_ReleaseMutex(Kernel->os, Kernel->hardware->powerMutex));
+            powerMutexAcquired = gcvFALSE;
+        }
+#else
+        /* No access from user land to write registers. */
+        status = gcvSTATUS_NOT_SUPPORTED;
+#endif
+        break;
+
+    case gcvHAL_READ_ALL_PROFILE_REGISTERS:
+#if VIVANTE_PROFILER && VIVANTE_PROFILER_CONTEXT
+        /* Read profile data according to the context. */
+        gcmkONERROR(
+            gckHARDWARE_QueryContextProfile(
+                Kernel->hardware,
+                Kernel->profileCleanRegister,
+                gcmNAME_TO_PTR(Interface->u.RegisterProfileData.context),
+                &Interface->u.RegisterProfileData.counters));
+#elif VIVANTE_PROFILER
+        /* Read all 3D profile registers. */
+        gcmkONERROR(
+            gckHARDWARE_QueryProfileRegisters(
+                Kernel->hardware,
+                Kernel->profileCleanRegister,
+                &Interface->u.RegisterProfileData.counters));
+#else
+        status = gcvSTATUS_OK;
+#endif
+        break;
+
+    case gcvHAL_PROFILE_REGISTERS_2D:
+#if VIVANTE_PROFILER
+        /* Read all 2D profile registers. */
+        gcmkONERROR(
+            gckHARDWARE_ProfileEngine2D(
+                Kernel->hardware,
+                gcmUINT64_TO_PTR(Interface->u.RegisterProfileData2D.hwProfile2D)));
+#else
+        status = gcvSTATUS_OK;
+#endif
+        break;
+
+    case gcvHAL_GET_PROFILE_SETTING:
+#if VIVANTE_PROFILER
+        /* Get profile setting */
+        Interface->u.GetProfileSetting.enable = Kernel->profileEnable;
+#endif
+
+        status = gcvSTATUS_OK;
+        break;
+
+    case gcvHAL_SET_PROFILE_SETTING:
+#if VIVANTE_PROFILER
+        /* Set profile setting */
+        if(Kernel->hardware->gpuProfiler)
+        {
+            Kernel->profileEnable = Interface->u.SetProfileSetting.enable;
+
+            if ((Kernel->hardware->identity.chipModel == gcv1500 && Kernel->hardware->identity.chipRevision == 0x5246) ||
+                 (Kernel->hardware->identity.chipModel == gcv3000 && Kernel->hardware->identity.chipRevision == 0x5450))
+                gcmkONERROR(gckHARDWARE_InitProfiler(Kernel->hardware));
+
+#if VIVANTE_PROFILER_NEW
+            if (Kernel->profileEnable)
+                gckHARDWARE_InitProfiler(Kernel->hardware);
+#endif
+        }
+        else
+        {
+            status = gcvSTATUS_NOT_SUPPORTED;
+            break;
+        }
+#endif
+
+        status = gcvSTATUS_OK;
+        break;
+
+#if VIVANTE_PROFILER_PERDRAW
+    case gcvHAL_READ_PROFILER_REGISTER_SETTING:
+    #if VIVANTE_PROFILER
+        Kernel->profileCleanRegister = Interface->u.SetProfilerRegisterClear.bclear;
+    #endif
+        status = gcvSTATUS_OK;
+        break;
+#endif
+
+    case gcvHAL_QUERY_KERNEL_SETTINGS:
+        /* Get kernel settings. */
+        gcmkONERROR(
+            gckKERNEL_QuerySettings(Kernel,
+                                    &Interface->u.QueryKernelSettings.settings));
+        break;
+
+    case gcvHAL_RESET:
+        /* Reset the hardware. */
+        gcmkONERROR(
+            gckHARDWARE_Reset(Kernel->hardware));
+        break;
+
+    case gcvHAL_DEBUG:
+        /* Set debug level and zones. */
+        if (Interface->u.Debug.set)
+        {
+            gckOS_SetDebugLevel(Interface->u.Debug.level);
+            gckOS_SetDebugZones(Interface->u.Debug.zones,
+                                Interface->u.Debug.enable);
+        }
+
+        if (Interface->u.Debug.message[0] != '\0')
+        {
+            /* Print a message to the debugger. */
+            if (Interface->u.Debug.type == gcvMESSAGE_TEXT)
+            {
+               gckOS_CopyPrint(Interface->u.Debug.message);
+            }
+            else
+            {
+               gckOS_DumpBuffer(Kernel->os,
+                                Interface->u.Debug.message,
+                                Interface->u.Debug.messageSize,
+                                gceDUMP_BUFFER_FROM_USER,
+                                gcvTRUE);
+            }
+        }
+        status = gcvSTATUS_OK;
+        break;
+
+    case gcvHAL_DUMP_GPU_STATE:
+        {
+            gceCHIPPOWERSTATE power;
+
+            _DumpDriverConfigure(Kernel);
+
+            gcmkONERROR(gckHARDWARE_QueryPowerManagementState(
+                Kernel->hardware,
+                &power
+                ));
+
+            if (power == gcvPOWER_ON)
+            {
+                Interface->u.ReadRegisterData.data = 1;
+
+                _DumpState(Kernel);
+            }
+            else
+            {
+                Interface->u.ReadRegisterData.data = 0;
+                status = gcvSTATUS_CHIP_NOT_READY;
+
+                gcmkPRINT("[galcore]: Can't dump state if GPU isn't POWER ON.");
+            }
+        }
+        break;
+
+    case gcvHAL_DUMP_EVENT:
+        break;
+
+    case gcvHAL_CACHE:
+
+        logical = gcmUINT64_TO_PTR(Interface->u.Cache.logical);
+
+        if (Interface->u.Cache.node)
+        {
+            gcmkONERROR(gckVIDMEM_HANDLE_Lookup(
+                Kernel,
+                processID,
+                Interface->u.Cache.node,
+                &nodeObject));
+
+            if (nodeObject->node->VidMem.memory->object.type == gcvOBJ_VIDMEM
+             || nodeObject->node->Virtual.contiguous
+            )
+            {
+                /* If memory is contiguous, get physical address. */
+                gcmkONERROR(gckOS_UserLogicalToPhysical(
+                    Kernel->os, logical, &paddr));
+            }
+        }
+
+        bytes = (gctSIZE_T) Interface->u.Cache.bytes;
+        switch(Interface->u.Cache.operation)
+        {
+        case gcvCACHE_FLUSH:
+            /* Clean and invalidate the cache. */
+            status = gckOS_CacheFlush(Kernel->os,
+                                      processID,
+                                      physical,
+                                      paddr,
+                                      logical,
+                                      bytes);
+            break;
+        case gcvCACHE_CLEAN:
+            /* Clean the cache. */
+            status = gckOS_CacheClean(Kernel->os,
+                                      processID,
+                                      physical,
+                                      paddr,
+                                      logical,
+                                      bytes);
+            break;
+        case gcvCACHE_INVALIDATE:
+            /* Invalidate the cache. */
+            status = gckOS_CacheInvalidate(Kernel->os,
+                                           processID,
+                                           physical,
+                                           paddr,
+                                           logical,
+                                           bytes);
+            break;
+
+        case gcvCACHE_MEMORY_BARRIER:
+            status = gckOS_MemoryBarrier(Kernel->os,
+                                         logical);
+            break;
+        default:
+            status = gcvSTATUS_INVALID_ARGUMENT;
+            break;
+        }
+        break;
+
+    case gcvHAL_TIMESTAMP:
+        /* Check for invalid timer. */
+        if ((Interface->u.TimeStamp.timer >= gcmCOUNTOF(Kernel->timers))
+        ||  (Interface->u.TimeStamp.request != 2))
+        {
+            Interface->u.TimeStamp.timeDelta = 0;
+            gcmkONERROR(gcvSTATUS_INVALID_ARGUMENT);
+        }
+
+        /* Return timer results and reset timer. */
+        {
+            gcsTIMER_PTR timer = &(Kernel->timers[Interface->u.TimeStamp.timer]);
+            gctUINT64 timeDelta = 0;
+
+            if (timer->stopTime < timer->startTime )
+            {
+                Interface->u.TimeStamp.timeDelta = 0;
+                gcmkONERROR(gcvSTATUS_TIMER_OVERFLOW);
+            }
+
+            timeDelta = timer->stopTime - timer->startTime;
+
+            /* Check truncation overflow. */
+            Interface->u.TimeStamp.timeDelta = (gctINT32) timeDelta;
+            /*bit0~bit30 is available*/
+            if (timeDelta>>31)
+            {
+                Interface->u.TimeStamp.timeDelta = 0;
+                gcmkONERROR(gcvSTATUS_TIMER_OVERFLOW);
+            }
+
+            status = gcvSTATUS_OK;
+        }
+        break;
+
+    case gcvHAL_DATABASE:
+        gcmkONERROR(gckKERNEL_QueryDatabase(Kernel, processID, Interface));
+        break;
+
+    case gcvHAL_VERSION:
+        Interface->u.Version.major = gcvVERSION_MAJOR;
+        Interface->u.Version.minor = gcvVERSION_MINOR;
+        Interface->u.Version.patch = gcvVERSION_PATCH;
+        Interface->u.Version.build = gcvVERSION_BUILD;
+#if gcmIS_DEBUG(gcdDEBUG_TRACE)
+        gcmkTRACE_ZONE(gcvLEVEL_INFO, gcvZONE_KERNEL,
+                       "KERNEL version %d.%d.%d build %u",
+                       gcvVERSION_MAJOR, gcvVERSION_MINOR,
+                       gcvVERSION_PATCH, gcvVERSION_BUILD);
+#endif
+        break;
+
+    case gcvHAL_CHIP_INFO:
+        /* Only if not support multi-core */
+        Interface->u.ChipInfo.count = 1;
+        Interface->u.ChipInfo.types[0] = Kernel->hardware->type;
+        break;
+
+    case gcvHAL_ATTACH:
+        /* Attach user process. */
+        gcmkONERROR(
+            gckCOMMAND_Attach(Kernel->command,
+                              &context,
+                              &bytes,
+                              &Interface->u.Attach.numStates,
+                              processID));
+
+        Interface->u.Attach.maxState = bytes;
+        Interface->u.Attach.context = gcmPTR_TO_NAME(context);
+
+        if (Interface->u.Attach.map == gcvTRUE)
+        {
+            gcmkVERIFY_OK(
+                gckCONTEXT_MapBuffer(context,
+                                     Interface->u.Attach.physicals,
+                                     Interface->u.Attach.logicals,
+                                     &Interface->u.Attach.bytes));
+        }
+
+        gcmkVERIFY_OK(
+            gckKERNEL_AddProcessDB(Kernel,
+                                   processID, gcvDB_CONTEXT,
+                                   gcmINT2PTR(Interface->u.Attach.context),
+                                   gcvNULL,
+                                   0));
+        break;
+
+    case gcvHAL_DETACH:
+        gcmkVERIFY_OK(
+            gckKERNEL_RemoveProcessDB(Kernel,
+                              processID, gcvDB_CONTEXT,
+                              gcmINT2PTR(Interface->u.Detach.context)));
+
+        /* Detach user process. */
+        gcmkONERROR(
+            gckCOMMAND_Detach(Kernel->command,
+                              gcmNAME_TO_PTR(Interface->u.Detach.context)));
+
+        gcmRELEASE_NAME(Interface->u.Detach.context);
+        break;
+
+    case gcvHAL_COMPOSE:
+        Interface->u.Compose.physical = gcmPTR_TO_UINT64(gcmNAME_TO_PTR(Interface->u.Compose.physical));
+        /* Start composition. */
+        gcmkONERROR(
+            gckEVENT_Compose(Kernel->eventObj,
+                             &Interface->u.Compose));
+        break;
+
+    case gcvHAL_SET_TIMEOUT:
+         /* set timeOut value from user */
+         gckKERNEL_SetTimeOut(Kernel, Interface->u.SetTimeOut.timeOut);
+        break;
+
+    case gcvHAL_GET_FRAME_INFO:
+        gcmkONERROR(gckHARDWARE_GetFrameInfo(
+                    Kernel->hardware,
+                    gcmUINT64_TO_PTR(Interface->u.GetFrameInfo.frameInfo)));
+        break;
+
+    case gcvHAL_SET_FSCALE_VALUE:
+#if gcdENABLE_FSCALE_VAL_ADJUST
+        status = gckHARDWARE_SetFscaleValue(Kernel->hardware,
+                                            Interface->u.SetFscaleValue.value);
+#else
+        status = gcvSTATUS_NOT_SUPPORTED;
+#endif
+        break;
+    case gcvHAL_GET_FSCALE_VALUE:
+#if gcdENABLE_FSCALE_VAL_ADJUST
+        status = gckHARDWARE_GetFscaleValue(Kernel->hardware,
+                                            &Interface->u.GetFscaleValue.value,
+                                            &Interface->u.GetFscaleValue.minValue,
+                                            &Interface->u.GetFscaleValue.maxValue);
+#else
+        status = gcvSTATUS_NOT_SUPPORTED;
+#endif
+        break;
+
+    case gcvHAL_NAME_VIDEO_MEMORY:
+        gcmkONERROR(gckVIDMEM_NODE_Name(Kernel,
+                                        Interface->u.NameVideoMemory.handle,
+                                        &Interface->u.NameVideoMemory.name));
+        break;
+
+    case gcvHAL_IMPORT_VIDEO_MEMORY:
+        gcmkONERROR(gckVIDMEM_NODE_Import(Kernel,
+                                          Interface->u.ImportVideoMemory.name,
+                                          &Interface->u.ImportVideoMemory.handle));
+
+        gcmkONERROR(
+            gckKERNEL_AddProcessDB(Kernel,
+                                   processID, gcvDB_VIDEO_MEMORY,
+                                   gcmINT2PTR(Interface->u.ImportVideoMemory.handle),
+                                   gcvNULL,
+                                   0));
+        break;
+
+    case gcvHAL_GET_VIDEO_MEMORY_FD:
+        gcmkONERROR(gckVIDMEM_NODE_GetFd(
+            Kernel,
+            Interface->u.GetVideoMemoryFd.handle,
+            &Interface->u.GetVideoMemoryFd.fd
+            ));
+
+        /* No need to add it to processDB because OS will release all fds when
+        ** process quits.
+        */
+        break;
+
+    case gcvHAL_QUERY_RESET_TIME_STAMP:
+        Interface->u.QueryResetTimeStamp.timeStamp = Kernel->resetTimeStamp;
+        break;
+
+    case gcvHAL_FREE_VIRTUAL_COMMAND_BUFFER:
+        buffer = (gckVIRTUAL_COMMAND_BUFFER_PTR)gcmNAME_TO_PTR(Interface->u.FreeVirtualCommandBuffer.physical);
+
+        gcmkVERIFY_OK(gckKERNEL_RemoveProcessDB(
+            Kernel,
+            processID,
+            gcvDB_COMMAND_BUFFER,
+            gcmUINT64_TO_PTR(Interface->u.FreeVirtualCommandBuffer.logical)));
+
+        gcmkONERROR(gckOS_DestroyUserVirtualMapping(
+            Kernel->os,
+            buffer->physical,
+            (gctSIZE_T)Interface->u.FreeVirtualCommandBuffer.bytes,
+            gcmUINT64_TO_PTR(Interface->u.FreeVirtualCommandBuffer.logical)));
+
+        gcmkONERROR(gckKERNEL_DestroyVirtualCommandBuffer(
+            Kernel,
+            (gctSIZE_T)Interface->u.FreeVirtualCommandBuffer.bytes,
+            (gctPHYS_ADDR)buffer,
+            gcmUINT64_TO_PTR(Interface->u.FreeVirtualCommandBuffer.logical)));
+
+        gcmRELEASE_NAME(Interface->u.FreeVirtualCommandBuffer.physical);
+        break;
+
+#if gcdANDROID_NATIVE_FENCE_SYNC
+    case gcvHAL_SYNC_POINT:
+        {
+            gctSYNC_POINT syncPoint;
+
+            switch (Interface->u.SyncPoint.command)
+            {
+            case gcvSYNC_POINT_CREATE:
+                gcmkONERROR(gckOS_CreateSyncPoint(Kernel->os, &syncPoint));
+
+                Interface->u.SyncPoint.syncPoint = gcmPTR_TO_UINT64(syncPoint);
+
+                gcmkVERIFY_OK(
+                    gckKERNEL_AddProcessDB(Kernel,
+                                           processID, gcvDB_SYNC_POINT,
+                                           syncPoint,
+                                           gcvNULL,
+                                           0));
+                break;
+
+            case gcvSYNC_POINT_DESTROY:
+                syncPoint = gcmUINT64_TO_PTR(Interface->u.SyncPoint.syncPoint);
+
+                gcmkONERROR(gckOS_DestroySyncPoint(Kernel->os, syncPoint));
+
+                gcmkVERIFY_OK(
+                    gckKERNEL_RemoveProcessDB(Kernel,
+                                              processID, gcvDB_SYNC_POINT,
+                                              syncPoint));
+                break;
+
+            default:
+                gcmkONERROR(gcvSTATUS_INVALID_ARGUMENT);
+                break;
+            }
+        }
+        break;
+
+    case gcvHAL_CREATE_NATIVE_FENCE:
+        {
+            gctINT fenceFD;
+            gctSYNC_POINT syncPoint =
+                gcmUINT64_TO_PTR(Interface->u.CreateNativeFence.syncPoint);
+
+            gcmkONERROR(
+                gckOS_CreateNativeFence(Kernel->os,
+                                        Kernel->timeline,
+                                        syncPoint,
+                                        &fenceFD));
+
+            Interface->u.CreateNativeFence.fenceFD = fenceFD;
+        }
+        break;
+
+    case gcvHAL_WAIT_NATIVE_FENCE:
+        {
+            gctINT fenceFD;
+            gctUINT32 timeout;
+
+            fenceFD = Interface->u.WaitNativeFence.fenceFD;
+            timeout = Interface->u.WaitNativeFence.timeout;
+
+            gcmkONERROR(
+                gckOS_WaitNativeFence(Kernel->os,
+                                      Kernel->timeline,
+                                      fenceFD,
+                                      timeout));
+        }
+        break;
+#endif
+
+    case gcvHAL_SHBUF:
+        {
+            gctSHBUF shBuf;
+            gctPOINTER uData;
+            gctUINT32 bytes;
+
+            switch (Interface->u.ShBuf.command)
+            {
+            case gcvSHBUF_CREATE:
+                bytes = Interface->u.ShBuf.bytes;
+
+                /* Create. */
+                gcmkONERROR(gckKERNEL_CreateShBuffer(Kernel, bytes, &shBuf));
+
+                Interface->u.ShBuf.id = gcmPTR_TO_UINT64(shBuf);
+
+                gcmkVERIFY_OK(
+                    gckKERNEL_AddProcessDB(Kernel,
+                                           processID,
+                                           gcvDB_SHBUF,
+                                           shBuf,
+                                           gcvNULL,
+                                           0));
+                break;
+
+            case gcvSHBUF_DESTROY:
+                shBuf = gcmUINT64_TO_PTR(Interface->u.ShBuf.id);
+
+                /* Check db first to avoid illegal destroy in the process. */
+                gcmkONERROR(
+                    gckKERNEL_RemoveProcessDB(Kernel,
+                                              processID,
+                                              gcvDB_SHBUF,
+                                              shBuf));
+
+                gcmkONERROR(gckKERNEL_DestroyShBuffer(Kernel, shBuf));
+                break;
+
+            case gcvSHBUF_MAP:
+                shBuf = gcmUINT64_TO_PTR(Interface->u.ShBuf.id);
+
+                /* Map for current process access. */
+                gcmkONERROR(gckKERNEL_MapShBuffer(Kernel, shBuf));
+
+                gcmkVERIFY_OK(
+                    gckKERNEL_AddProcessDB(Kernel,
+                                           processID,
+                                           gcvDB_SHBUF,
+                                           shBuf,
+                                           gcvNULL,
+                                           0));
+                break;
+
+            case gcvSHBUF_WRITE:
+                shBuf = gcmUINT64_TO_PTR(Interface->u.ShBuf.id);
+                uData = gcmUINT64_TO_PTR(Interface->u.ShBuf.data);
+                bytes = Interface->u.ShBuf.bytes;
+
+                /* Write. */
+                gcmkONERROR(
+                    gckKERNEL_WriteShBuffer(Kernel, shBuf, uData, bytes));
+                break;
+
+            case gcvSHBUF_READ:
+                shBuf = gcmUINT64_TO_PTR(Interface->u.ShBuf.id);
+                uData = gcmUINT64_TO_PTR(Interface->u.ShBuf.data);
+                bytes = Interface->u.ShBuf.bytes;
+
+                /* Read. */
+                gcmkONERROR(
+                    gckKERNEL_ReadShBuffer(Kernel,
+                                           shBuf,
+                                           uData,
+                                           bytes,
+                                           &bytes));
+
+                /* Return copied size. */
+                Interface->u.ShBuf.bytes = bytes;
+                break;
+
+            default:
+                gcmkONERROR(gcvSTATUS_INVALID_ARGUMENT);
+                break;
+            }
+        }
+        break;
+
+    case gcvHAL_CONFIG_POWER_MANAGEMENT:
+        gcmkONERROR(gckKERNEL_ConfigPowerManagement(Kernel, Interface));
+        break;
+
+    case gcvHAL_WRAP_USER_MEMORY:
+        gcmkONERROR(gckKERNEL_WrapUserMemory(
+            Kernel,
+            processID,
+           &Interface->u.WrapUserMemory.desc,
+           &Interface->u.WrapUserMemory.node
+            ));
+        break;
+
+#if gcdENABLE_DEC_COMPRESSION && gcdDEC_ENABLE_AHB
+    case gcvHAL_DEC300_READ:
+        gcmkONERROR(viv_dec300_read(
+            Interface->u.DEC300Read.enable,
+            Interface->u.DEC300Read.readId,
+            Interface->u.DEC300Read.format,
+            Interface->u.DEC300Read.strides,
+            Interface->u.DEC300Read.is3D,
+            Interface->u.DEC300Read.isMSAA,
+            Interface->u.DEC300Read.clearValue,
+            Interface->u.DEC300Read.isTPC,
+            Interface->u.DEC300Read.isTPCCompressed,
+            Interface->u.DEC300Read.surfAddrs,
+            Interface->u.DEC300Read.tileAddrs
+            ));
+        break;
+
+    case gcvHAL_DEC300_WRITE:
+        gcmkONERROR(viv_dec300_write(
+            Interface->u.DEC300Write.enable,
+            Interface->u.DEC300Write.readId,
+            Interface->u.DEC300Write.writeId,
+            Interface->u.DEC300Write.format,
+            Interface->u.DEC300Write.surfAddr,
+            Interface->u.DEC300Write.tileAddr
+            ));
+        break;
+
+    case gcvHAL_DEC300_FLUSH:
+        gcmkONERROR(viv_dec300_flush(0));
+        break;
+
+    case gcvHAL_DEC300_FLUSH_WAIT:
+        gcmkONERROR(viv_dec300_flush_done(&Interface->u.DEC300FlushWait.done));
+        break;
+#endif
+
+    default:
+        /* Invalid command. */
+        gcmkONERROR(gcvSTATUS_INVALID_ARGUMENT);
+    }
+
+OnError:
+    /* Save status. */
+    Interface->status = status;
+
+#if QNX_SINGLE_THREADED_DEBUGGING
+    gckOS_ReleaseMutex(Kernel->os, Kernel->debugMutex);
+#endif
+
+    if (powerMutexAcquired == gcvTRUE)
+    {
+        gcmkVERIFY_OK(gckOS_ReleaseMutex(Kernel->os, Kernel->hardware->powerMutex));
+    }
+
+    /* Return the status. */
+    gcmkFOOTER();
+    return status;
+}
+
+/*******************************************************************************
+**  gckKERNEL_AttachProcess
+**
+**  Attach or detach a process.
+**
+**  INPUT:
+**
+**      gckKERNEL Kernel
+**          Pointer to an gckKERNEL object.
+**
+**      gctBOOL Attach
+**          gcvTRUE if a new process gets attached or gcFALSE when a process
+**          gets detatched.
+**
+**  OUTPUT:
+**
+**      Nothing.
+*/
+gceSTATUS
+gckKERNEL_AttachProcess(
+    IN gckKERNEL Kernel,
+    IN gctBOOL Attach
+    )
+{
+    gceSTATUS status;
+    gctUINT32 processID;
+
+    gcmkHEADER_ARG("Kernel=0x%x Attach=%d", Kernel, Attach);
+
+    /* Verify the arguments. */
+    gcmkVERIFY_OBJECT(Kernel, gcvOBJ_KERNEL);
+
+    /* Get current process ID. */
+    gcmkONERROR(gckOS_GetProcessID(&processID));
+
+    gcmkONERROR(gckKERNEL_AttachProcessEx(Kernel, Attach, processID));
+
+    /* Success. */
+    gcmkFOOTER_NO();
+    return gcvSTATUS_OK;
+
+OnError:
+    /* Return the status. */
+    gcmkFOOTER();
+    return status;
+}
+
+/*******************************************************************************
+**  gckKERNEL_AttachProcessEx
+**
+**  Attach or detach a process with the given PID. Can be paired with gckKERNEL_AttachProcess
+**     provided the programmer is aware of the consequences.
+**
+**  INPUT:
+**
+**      gckKERNEL Kernel
+**          Pointer to an gckKERNEL object.
+**
+**      gctBOOL Attach
+**          gcvTRUE if a new process gets attached or gcFALSE when a process
+**          gets detatched.
+**
+**      gctUINT32 PID
+**          PID of the process to attach or detach.
+**
+**  OUTPUT:
+**
+**      Nothing.
+*/
+gceSTATUS
+gckKERNEL_AttachProcessEx(
+    IN gckKERNEL Kernel,
+    IN gctBOOL Attach,
+    IN gctUINT32 PID
+    )
+{
+    gceSTATUS status;
+    gctINT32 old;
+
+    gcmkHEADER_ARG("Kernel=0x%x Attach=%d PID=%d", Kernel, Attach, PID);
+
+    /* Verify the arguments. */
+    gcmkVERIFY_OBJECT(Kernel, gcvOBJ_KERNEL);
+
+    if (Attach)
+    {
+        /* Increment the number of clients attached. */
+        gcmkONERROR(
+            gckOS_AtomIncrement(Kernel->os, Kernel->atomClients, &old));
+
+        if (old == 0)
+        {
+            {
+                gcmkONERROR(gckOS_Broadcast(Kernel->os,
+                                            Kernel->hardware,
+                                            gcvBROADCAST_FIRST_PROCESS));
+            }
+        }
+
+        if (Kernel->dbCreated)
+        {
+            /* Create the process database. */
+            gcmkONERROR(gckKERNEL_CreateProcessDB(Kernel, PID));
+        }
+
+#if gcdPROCESS_ADDRESS_SPACE
+        /* Map kernel command buffer in the process's own MMU. */
+        gcmkONERROR(_MapCommandBuffer(Kernel));
+#endif
+    }
+    else
+    {
+        if (Kernel->dbCreated)
+        {
+            /* Clean up the process database. */
+            gcmkONERROR(gckKERNEL_DestroyProcessDB(Kernel, PID));
+
+            /* Save the last know process ID. */
+            Kernel->db->lastProcessID = PID;
+        }
+
+        {
+            status = gckEVENT_Submit(Kernel->eventObj, gcvTRUE, gcvFALSE);
+
+            if (status == gcvSTATUS_INTERRUPTED && Kernel->eventObj->submitTimer)
+            {
+                gcmkONERROR(gckOS_StartTimer(Kernel->os,
+                                             Kernel->eventObj->submitTimer,
+                                             1));
+            }
+            else
+            {
+                gcmkONERROR(status);
+            }
+        }
+
+        /* Decrement the number of clients attached. */
+        gcmkONERROR(
+            gckOS_AtomDecrement(Kernel->os, Kernel->atomClients, &old));
+
+        if (old == 1)
+        {
+            {
+                /* Last client detached, switch to SUSPEND power state. */
+                gcmkONERROR(gckOS_Broadcast(Kernel->os,
+                                            Kernel->hardware,
+                                            gcvBROADCAST_LAST_PROCESS));
+            }
+
+            /* Flush the debug cache. */
+            gcmkDEBUGFLUSH(~0U);
+        }
+    }
+
+    /* Success. */
+    gcmkFOOTER_NO();
+    return gcvSTATUS_OK;
+
+OnError:
+    /* Return the status. */
+    gcmkFOOTER();
+    return status;
+}
+
+#if gcdSECURE_USER
+gceSTATUS
+gckKERNEL_MapLogicalToPhysical(
+    IN gckKERNEL Kernel,
+    IN gcskSECURE_CACHE_PTR Cache,
+    IN OUT gctPOINTER * Data
+    )
+{
+    gceSTATUS status;
+    static gctBOOL baseAddressValid = gcvFALSE;
+    static gctUINT32 baseAddress;
+    gctBOOL needBase;
+    gcskLOGICAL_CACHE_PTR slot;
+
+    gcmkHEADER_ARG("Kernel=0x%x Cache=0x%x *Data=0x%x",
+                   Kernel, Cache, gcmOPT_POINTER(Data));
+
+    /* Verify the arguments. */
+    gcmkVERIFY_OBJECT(Kernel, gcvOBJ_KERNEL);
+
+    if (!baseAddressValid)
+    {
+        /* Get base address. */
+        gcmkONERROR(gckHARDWARE_GetBaseAddress(Kernel->hardware, &baseAddress));
+
+        baseAddressValid = gcvTRUE;
+    }
+
+    /* Does this state load need a base address? */
+    gcmkONERROR(gckHARDWARE_NeedBaseAddress(Kernel->hardware,
+                                            ((gctUINT32_PTR) Data)[-1],
+                                            &needBase));
+
+#if gcdSECURE_CACHE_METHOD == gcdSECURE_CACHE_LRU
+    {
+        gcskLOGICAL_CACHE_PTR next;
+        gctINT i;
+
+        /* Walk all used cache slots. */
+        for (i = 1, slot = Cache->cache[0].next, next = gcvNULL;
+             (i <= gcdSECURE_CACHE_SLOTS) && (slot->logical != gcvNULL);
+             ++i, slot = slot->next
+        )
+        {
+            if (slot->logical == *Data)
+            {
+                /* Bail out. */
+                next = slot;
+                break;
+            }
+        }
+
+        /* See if we had a miss. */
+        if (next == gcvNULL)
+        {
+            /* Use the tail of the cache. */
+            slot = Cache->cache[0].prev;
+
+            /* Initialize the cache line. */
+            slot->logical = *Data;
+
+            /* Map the logical address to a DMA address. */
+            gcmkONERROR(
+                gckOS_GetPhysicalAddress(Kernel->os, *Data, &slot->dma));
+        }
+
+        /* Move slot to head of list. */
+        if (slot != Cache->cache[0].next)
+        {
+            /* Unlink. */
+            slot->prev->next = slot->next;
+            slot->next->prev = slot->prev;
+
+            /* Move to head of chain. */
+            slot->prev       = &Cache->cache[0];
+            slot->next       = Cache->cache[0].next;
+            slot->prev->next = slot;
+            slot->next->prev = slot;
+        }
+    }
+#elif gcdSECURE_CACHE_METHOD == gcdSECURE_CACHE_LINEAR
+    {
+        gctINT i;
+        gcskLOGICAL_CACHE_PTR next = gcvNULL;
+        gcskLOGICAL_CACHE_PTR oldestSlot = gcvNULL;
+        slot = gcvNULL;
+
+        if (Cache->cacheIndex != gcvNULL)
+        {
+            /* Walk the cache forwards. */
+            for (i = 1, slot = Cache->cacheIndex;
+                 (i <= gcdSECURE_CACHE_SLOTS) && (slot->logical != gcvNULL);
+                 ++i, slot = slot->next)
+            {
+                if (slot->logical == *Data)
+                {
+                    /* Bail out. */
+                    next = slot;
+                    break;
+                }
+
+                /* Determine age of this slot. */
+                if ((oldestSlot       == gcvNULL)
+                ||  (oldestSlot->stamp > slot->stamp)
+                )
+                {
+                    oldestSlot = slot;
+                }
+            }
+
+            if (next == gcvNULL)
+            {
+                /* Walk the cache backwards. */
+                for (slot = Cache->cacheIndex->prev;
+                     (i <= gcdSECURE_CACHE_SLOTS) && (slot->logical != gcvNULL);
+                     ++i, slot = slot->prev)
+                {
+                    if (slot->logical == *Data)
+                    {
+                        /* Bail out. */
+                        next = slot;
+                        break;
+                    }
+
+                    /* Determine age of this slot. */
+                    if ((oldestSlot       == gcvNULL)
+                    ||  (oldestSlot->stamp > slot->stamp)
+                    )
+                    {
+                        oldestSlot = slot;
+                    }
+                }
+            }
+        }
+
+        /* See if we had a miss. */
+        if (next == gcvNULL)
+        {
+            if (Cache->cacheFree != 0)
+            {
+                slot = &Cache->cache[Cache->cacheFree];
+                gcmkASSERT(slot->logical == gcvNULL);
+
+                ++ Cache->cacheFree;
+                if (Cache->cacheFree >= gcmCOUNTOF(Cache->cache))
+                {
+                    Cache->cacheFree = 0;
+                }
+            }
+            else
+            {
+                /* Use the oldest cache slot. */
+                gcmkASSERT(oldestSlot != gcvNULL);
+                slot = oldestSlot;
+
+                /* Unlink from the chain. */
+                slot->prev->next = slot->next;
+                slot->next->prev = slot->prev;
+
+                /* Append to the end. */
+                slot->prev       = Cache->cache[0].prev;
+                slot->next       = &Cache->cache[0];
+                slot->prev->next = slot;
+                slot->next->prev = slot;
+            }
+
+            /* Initialize the cache line. */
+            slot->logical = *Data;
+
+            /* Map the logical address to a DMA address. */
+            gcmkONERROR(
+                gckOS_GetPhysicalAddress(Kernel->os, *Data, &slot->dma));
+        }
+
+        /* Save time stamp. */
+        slot->stamp = ++ Cache->cacheStamp;
+
+        /* Save current slot for next lookup. */
+        Cache->cacheIndex = slot;
+    }
+#elif gcdSECURE_CACHE_METHOD == gcdSECURE_CACHE_HASH
+    {
+        gctINT i;
+        gctUINT32 data = gcmPTR2INT32(*Data);
+        gctUINT32 key, index;
+        gcskLOGICAL_CACHE_PTR hash;
+
+        /* Generate a hash key. */
+        key   = (data >> 24) + (data >> 16) + (data >> 8) + data;
+        index = key % gcmCOUNTOF(Cache->hash);
+
+        /* Get the hash entry. */
+        hash = &Cache->hash[index];
+
+        for (slot = hash->nextHash, i = 0;
+             (slot != gcvNULL) && (i < gcdSECURE_CACHE_SLOTS);
+             slot = slot->nextHash, ++i
+        )
+        {
+            if (slot->logical == (*Data))
+            {
+                break;
+            }
+        }
+
+        if (slot == gcvNULL)
+        {
+            /* Grab from the tail of the cache. */
+            slot = Cache->cache[0].prev;
+
+            /* Unlink slot from any hash table it is part of. */
+            if (slot->prevHash != gcvNULL)
+            {
+                slot->prevHash->nextHash = slot->nextHash;
+            }
+            if (slot->nextHash != gcvNULL)
+            {
+                slot->nextHash->prevHash = slot->prevHash;
+            }
+
+            /* Initialize the cache line. */
+            slot->logical = *Data;
+
+            /* Map the logical address to a DMA address. */
+            gcmkONERROR(
+                gckOS_GetPhysicalAddress(Kernel->os, *Data, &slot->dma));
+
+            if (hash->nextHash != gcvNULL)
+            {
+                gcmkTRACE_ZONE(gcvLEVEL_INFO, gcvZONE_KERNEL,
+                               "Hash Collision: logical=0x%x key=0x%08x",
+                               *Data, key);
+            }
+
+            /* Insert the slot at the head of the hash list. */
+            slot->nextHash     = hash->nextHash;
+            if (slot->nextHash != gcvNULL)
+            {
+                slot->nextHash->prevHash = slot;
+            }
+            slot->prevHash     = hash;
+            hash->nextHash     = slot;
+        }
+
+        /* Move slot to head of list. */
+        if (slot != Cache->cache[0].next)
+        {
+            /* Unlink. */
+            slot->prev->next = slot->next;
+            slot->next->prev = slot->prev;
+
+            /* Move to head of chain. */
+            slot->prev       = &Cache->cache[0];
+            slot->next       = Cache->cache[0].next;
+            slot->prev->next = slot;
+            slot->next->prev = slot;
+        }
+    }
+#elif gcdSECURE_CACHE_METHOD == gcdSECURE_CACHE_TABLE
+    {
+        gctUINT32 index = (gcmPTR2INT32(*Data) % gcdSECURE_CACHE_SLOTS) + 1;
+
+        /* Get cache slot. */
+        slot = &Cache->cache[index];
+
+        /* Check for cache miss. */
+        if (slot->logical != *Data)
+        {
+            /* Initialize the cache line. */
+            slot->logical = *Data;
+
+            /* Map the logical address to a DMA address. */
+            gcmkONERROR(
+                gckOS_GetPhysicalAddress(Kernel->os, *Data, &slot->dma));
+        }
+    }
+#endif
+
+    /* Return DMA address. */
+    *Data = gcmINT2PTR(slot->dma + (needBase ? baseAddress : 0));
+
+    /* Success. */
+    gcmkFOOTER_ARG("*Data=0x%08x", *Data);
+    return gcvSTATUS_OK;
+
+OnError:
+    /* Return the status. */
+    gcmkFOOTER();
+    return status;
+}
+
+gceSTATUS
+gckKERNEL_FlushTranslationCache(
+    IN gckKERNEL Kernel,
+    IN gcskSECURE_CACHE_PTR Cache,
+    IN gctPOINTER Logical,
+    IN gctSIZE_T Bytes
+    )
+{
+    gctINT i;
+    gcskLOGICAL_CACHE_PTR slot;
+    gctUINT8_PTR ptr;
+
+    gcmkHEADER_ARG("Kernel=0x%x Cache=0x%x Logical=0x%x Bytes=%lu",
+                   Kernel, Cache, Logical, Bytes);
+
+    /* Do we need to flush the entire cache? */
+    if (Logical == gcvNULL)
+    {
+        /* Clear all cache slots. */
+        for (i = 1; i <= gcdSECURE_CACHE_SLOTS; ++i)
+        {
+            Cache->cache[i].logical  = gcvNULL;
+
+#if gcdSECURE_CACHE_METHOD == gcdSECURE_CACHE_HASH
+            Cache->cache[i].nextHash = gcvNULL;
+            Cache->cache[i].prevHash = gcvNULL;
+#endif
+}
+
+#if gcdSECURE_CACHE_METHOD == gcdSECURE_CACHE_HASH
+        /* Zero the hash table. */
+        for (i = 0; i < gcmCOUNTOF(Cache->hash); ++i)
+        {
+            Cache->hash[i].nextHash = gcvNULL;
+        }
+#endif
+
+        /* Reset the cache functionality. */
+        Cache->cacheIndex = gcvNULL;
+        Cache->cacheFree  = 1;
+        Cache->cacheStamp = 0;
+    }
+
+    else
+    {
+        gctUINT8_PTR low  = (gctUINT8_PTR) Logical;
+        gctUINT8_PTR high = low + Bytes;
+
+#if gcdSECURE_CACHE_METHOD == gcdSECURE_CACHE_LRU
+        gcskLOGICAL_CACHE_PTR next;
+
+        /* Walk all used cache slots. */
+        for (i = 1, slot = Cache->cache[0].next;
+             (i <= gcdSECURE_CACHE_SLOTS) && (slot->logical != gcvNULL);
+             ++i, slot = next
+        )
+        {
+            /* Save pointer to next slot. */
+            next = slot->next;
+
+            /* Test if this slot falls within the range to flush. */
+            ptr = (gctUINT8_PTR) slot->logical;
+            if ((ptr >= low) && (ptr < high))
+            {
+                /* Unlink slot. */
+                slot->prev->next = slot->next;
+                slot->next->prev = slot->prev;
+
+                /* Append slot to tail of cache. */
+                slot->prev       = Cache->cache[0].prev;
+                slot->next       = &Cache->cache[0];
+                slot->prev->next = slot;
+                slot->next->prev = slot;
+
+                /* Mark slot as empty. */
+                slot->logical = gcvNULL;
+            }
+        }
+
+#elif gcdSECURE_CACHE_METHOD == gcdSECURE_CACHE_LINEAR
+        gcskLOGICAL_CACHE_PTR next;
+
+        for (i = 1, slot = Cache->cache[0].next;
+             (i <= gcdSECURE_CACHE_SLOTS) && (slot->logical != gcvNULL);
+             ++i, slot = next)
+        {
+            /* Save pointer to next slot. */
+            next = slot->next;
+
+            /* Test if this slot falls within the range to flush. */
+            ptr = (gctUINT8_PTR) slot->logical;
+            if ((ptr >= low) && (ptr < high))
+            {
+                /* Test if this slot is the current slot. */
+                if (slot == Cache->cacheIndex)
+                {
+                    /* Move to next or previous slot. */
+                    Cache->cacheIndex = (slot->next->logical != gcvNULL)
+                                      ? slot->next
+                                      : (slot->prev->logical != gcvNULL)
+                                      ? slot->prev
+                                      : gcvNULL;
+                }
+
+                /* Unlink slot from cache. */
+                slot->prev->next = slot->next;
+                slot->next->prev = slot->prev;
+
+                /* Insert slot to head of cache. */
+                slot->prev       = &Cache->cache[0];
+                slot->next       = Cache->cache[0].next;
+                slot->prev->next = slot;
+                slot->next->prev = slot;
+
+                /* Mark slot as empty. */
+                slot->logical = gcvNULL;
+                slot->stamp   = 0;
+            }
+        }
+
+#elif gcdSECURE_CACHE_METHOD == gcdSECURE_CACHE_HASH
+        gctINT j;
+        gcskLOGICAL_CACHE_PTR hash, next;
+
+        /* Walk all hash tables. */
+        for (i = 0, hash = Cache->hash;
+             i < gcmCOUNTOF(Cache->hash);
+             ++i, ++hash)
+        {
+            /* Walk all slots in the hash. */
+            for (j = 0, slot = hash->nextHash;
+                 (j < gcdSECURE_CACHE_SLOTS) && (slot != gcvNULL);
+                 ++j, slot = next)
+            {
+                /* Save pointer to next slot. */
+                next = slot->next;
+
+                /* Test if this slot falls within the range to flush. */
+                ptr = (gctUINT8_PTR) slot->logical;
+                if ((ptr >= low) && (ptr < high))
+                {
+                    /* Unlink slot from hash table. */
+                    if (slot->prevHash == hash)
+                    {
+                        hash->nextHash = slot->nextHash;
+                    }
+                    else
+                    {
+                        slot->prevHash->nextHash = slot->nextHash;
+                    }
+
+                    if (slot->nextHash != gcvNULL)
+                    {
+                        slot->nextHash->prevHash = slot->prevHash;
+                    }
+
+                    /* Unlink slot from cache. */
+                    slot->prev->next = slot->next;
+                    slot->next->prev = slot->prev;
+
+                    /* Append slot to tail of cache. */
+                    slot->prev       = Cache->cache[0].prev;
+                    slot->next       = &Cache->cache[0];
+                    slot->prev->next = slot;
+                    slot->next->prev = slot;
+
+                    /* Mark slot as empty. */
+                    slot->logical  = gcvNULL;
+                    slot->prevHash = gcvNULL;
+                    slot->nextHash = gcvNULL;
+                }
+            }
+        }
+
+#elif gcdSECURE_CACHE_METHOD == gcdSECURE_CACHE_TABLE
+        gctUINT32 index;
+
+        /* Loop while inside the range. */
+        for (i = 1; (low < high) && (i <= gcdSECURE_CACHE_SLOTS); ++i)
+        {
+            /* Get index into cache for this range. */
+            index = (gcmPTR2INT32(low) % gcdSECURE_CACHE_SLOTS) + 1;
+            slot  = &Cache->cache[index];
+
+            /* Test if this slot falls within the range to flush. */
+            ptr = (gctUINT8_PTR) slot->logical;
+            if ((ptr >= low) && (ptr < high))
+            {
+                /* Remove entry from cache. */
+                slot->logical = gcvNULL;
+            }
+
+            /* Next block. */
+            low += gcdSECURE_CACHE_SLOTS;
+        }
+#endif
+    }
+
+    /* Success. */
+    gcmkFOOTER_NO();
+    return gcvSTATUS_OK;
+}
+#endif
+
+/*******************************************************************************
+**
+**  gckKERNEL_Recovery
+**
+**  Try to recover the GPU from a fatal error.
+**
+**  INPUT:
+**
+**      gckKERNEL Kernel
+**          Pointer to an gckKERNEL object.
+**
+**  OUTPUT:
+**
+**      Nothing.
+*/
+gceSTATUS
+gckKERNEL_Recovery(
+    IN gckKERNEL Kernel
+    )
+{
+    gceSTATUS status;
+    gckEVENT eventObj;
+    gckHARDWARE hardware;
+#if gcdSECURE_USER
+    gctUINT32 processID;
+    gcskSECURE_CACHE_PTR cache;
+#endif
+    gctUINT32 mask = 0;
+    gckCOMMAND command;
+    gckENTRYDATA data;
+    gctUINT32 i = 0, count = 0;
+#if gcdINTERRUPT_STATISTIC
+    gctINT32 oldValue;
+#endif
+
+    gcmkHEADER_ARG("Kernel=0x%x", Kernel);
+
+    /* Validate the arguemnts. */
+    gcmkVERIFY_OBJECT(Kernel, gcvOBJ_KERNEL);
+
+    /* Grab gckEVENT object. */
+    eventObj = Kernel->eventObj;
+    gcmkVERIFY_OBJECT(eventObj, gcvOBJ_EVENT);
+
+    /* Grab gckHARDWARE object. */
+    hardware = Kernel->hardware;
+    gcmkVERIFY_OBJECT(hardware, gcvOBJ_HARDWARE);
+
+    /* Grab gckCOMMAND object. */
+    command = Kernel->command;
+    gcmkVERIFY_OBJECT(command, gcvOBJ_COMMAND);
+
+#if gcdSECURE_USER
+    /* Flush the secure mapping cache. */
+    gcmkONERROR(gckOS_GetProcessID(&processID));
+    gcmkONERROR(gckKERNEL_GetProcessDBCache(Kernel, processID, &cache));
+    gcmkONERROR(gckKERNEL_FlushTranslationCache(Kernel, cache, gcvNULL, 0));
+#endif
+
+    if (Kernel->stuckDump == gcvSTUCK_DUMP_NONE)
+    {
+        gcmkPRINT("[galcore]: GPU[%d] hang, automatic recovery.", Kernel->core);
+    }
+    else
+    {
+        _DumpDriverConfigure(Kernel);
+        _DumpState(Kernel);
+    }
+
+    if (Kernel->recovery == gcvFALSE)
+    {
+        gcmkPRINT("[galcore]: Stop driver to keep scene.");
+
+        for (;;)
+        {
+            gckOS_Delay(Kernel->os, 10000);
+        }
+    }
+
+    /* Clear queue. */
+    do
+    {
+        status = gckENTRYQUEUE_Dequeue(&command->queue, &data);
+    }
+    while (status == gcvSTATUS_OK);
+
+    /* Issuing a soft reset for the GPU. */
+    gcmkONERROR(gckHARDWARE_Reset(hardware));
+
+    mask = Kernel->restoreMask;
+
+    for (i = 0; i < 32; i++)
+    {
+        if (mask & (1 << i))
+        {
+            count++;
+        }
+    }
+
+    /* Handle all outstanding events now. */
+#if gcdSMP
+    gcmkONERROR(gckOS_AtomSet(Kernel->os, eventObj->pending, mask));
+#else
+    eventObj->pending = mask;
+#endif
+
+#if gcdINTERRUPT_STATISTIC
+    while (count--)
+    {
+        gcmkONERROR(gckOS_AtomDecrement(
+            Kernel->os,
+            eventObj->interruptCount,
+            &oldValue
+            ));
+    }
+
+    gckOS_AtomClearMask(Kernel->hardware->pendingEvent, mask);
+#endif
+
+    gcmkONERROR(gckEVENT_Notify(eventObj, 1));
+
+    gcmkVERIFY_OK(gckOS_GetTime(&Kernel->resetTimeStamp));
+
+    /* Success. */
+    gcmkFOOTER_NO();
+    return gcvSTATUS_OK;
+
+OnError:
+    /* Return the status. */
+    gcmkFOOTER();
+    return status;
+}
+
+/*******************************************************************************
+**
+**  gckKERNEL_OpenUserData
+**
+**  Get access to the user data.
+**
+**  INPUT:
+**
+**      gckKERNEL Kernel
+**          Pointer to an gckKERNEL object.
+**
+**      gctBOOL NeedCopy
+**          The flag indicating whether or not the data should be copied.
+**
+**      gctPOINTER StaticStorage
+**          Pointer to the kernel storage where the data is to be copied if
+**          NeedCopy is gcvTRUE.
+**
+**      gctPOINTER UserPointer
+**          User pointer to the data.
+**
+**      gctSIZE_T Size
+**          Size of the data.
+**
+**  OUTPUT:
+**
+**      gctPOINTER * KernelPointer
+**          Pointer to the kernel pointer that will be pointing to the data.
+*/
+gceSTATUS
+gckKERNEL_OpenUserData(
+    IN gckKERNEL Kernel,
+    IN gctBOOL NeedCopy,
+    IN gctPOINTER StaticStorage,
+    IN gctPOINTER UserPointer,
+    IN gctSIZE_T Size,
+    OUT gctPOINTER * KernelPointer
+    )
+{
+    gceSTATUS status;
+
+    gcmkHEADER_ARG(
+        "Kernel=0x%08X NeedCopy=%d StaticStorage=0x%08X "
+        "UserPointer=0x%08X Size=%lu KernelPointer=0x%08X",
+        Kernel, NeedCopy, StaticStorage, UserPointer, Size, KernelPointer
+        );
+
+    /* Validate the arguemnts. */
+    gcmkVERIFY_OBJECT(Kernel, gcvOBJ_KERNEL);
+    gcmkVERIFY_ARGUMENT(!NeedCopy || (StaticStorage != gcvNULL));
+    gcmkVERIFY_ARGUMENT(UserPointer != gcvNULL);
+    gcmkVERIFY_ARGUMENT(KernelPointer != gcvNULL);
+    gcmkVERIFY_ARGUMENT(Size > 0);
+
+    if (NeedCopy)
+    {
+        /* Copy the user data to the static storage. */
+        gcmkONERROR(gckOS_CopyFromUserData(
+            Kernel->os, StaticStorage, UserPointer, Size
+            ));
+
+        /* Set the kernel pointer. */
+        * KernelPointer = StaticStorage;
+    }
+    else
+    {
+        gctPOINTER pointer = gcvNULL;
+
+        /* Map the user pointer. */
+        gcmkONERROR(gckOS_MapUserPointer(
+            Kernel->os, UserPointer, Size, &pointer
+            ));
+
+        /* Set the kernel pointer. */
+        * KernelPointer = pointer;
+    }
+
+OnError:
+    /* Return the status. */
+    gcmkFOOTER();
+    return status;
+}
+
+/*******************************************************************************
+**
+**  gckKERNEL_CloseUserData
+**
+**  Release resources associated with the user data connection opened by
+**  gckKERNEL_OpenUserData.
+**
+**  INPUT:
+**
+**      gckKERNEL Kernel
+**          Pointer to an gckKERNEL object.
+**
+**      gctBOOL NeedCopy
+**          The flag indicating whether or not the data should be copied.
+**
+**      gctBOOL FlushData
+**          If gcvTRUE, the data is written back to the user.
+**
+**      gctPOINTER UserPointer
+**          User pointer to the data.
+**
+**      gctSIZE_T Size
+**          Size of the data.
+**
+**  OUTPUT:
+**
+**      gctPOINTER * KernelPointer
+**          Kernel pointer to the data.
+*/
+gceSTATUS
+gckKERNEL_CloseUserData(
+    IN gckKERNEL Kernel,
+    IN gctBOOL NeedCopy,
+    IN gctBOOL FlushData,
+    IN gctPOINTER UserPointer,
+    IN gctSIZE_T Size,
+    OUT gctPOINTER * KernelPointer
+    )
+{
+    gceSTATUS status = gcvSTATUS_OK;
+    gctPOINTER pointer;
+
+    gcmkHEADER_ARG(
+        "Kernel=0x%08X NeedCopy=%d FlushData=%d "
+        "UserPointer=0x%08X Size=%lu KernelPointer=0x%08X",
+        Kernel, NeedCopy, FlushData, UserPointer, Size, KernelPointer
+        );
+
+    /* Validate the arguemnts. */
+    gcmkVERIFY_OBJECT(Kernel, gcvOBJ_KERNEL);
+    gcmkVERIFY_ARGUMENT(UserPointer != gcvNULL);
+    gcmkVERIFY_ARGUMENT(KernelPointer != gcvNULL);
+    gcmkVERIFY_ARGUMENT(Size > 0);
+
+    /* Get a shortcut to the kernel pointer. */
+    pointer = * KernelPointer;
+
+    if (pointer != gcvNULL)
+    {
+        if (NeedCopy)
+        {
+            if (FlushData)
+            {
+                gcmkONERROR(gckOS_CopyToUserData(
+                    Kernel->os, * KernelPointer, UserPointer, Size
+                    ));
+            }
+        }
+        else
+        {
+            /* Unmap record from kernel memory. */
+            gcmkONERROR(gckOS_UnmapUserPointer(
+                Kernel->os,
+                UserPointer,
+                Size,
+                * KernelPointer
+                ));
+        }
+
+        /* Reset the kernel pointer. */
+        * KernelPointer = gcvNULL;
+    }
+
+OnError:
+    /* Return the status. */
+    gcmkFOOTER();
+    return status;
+}
+
+void
+gckKERNEL_SetTimeOut(
+    IN gckKERNEL Kernel,
+    IN gctUINT32 timeOut
+    )
+{
+    gcmkHEADER_ARG("Kernel=0x%x timeOut=%d", Kernel, timeOut);
+#if gcdGPU_TIMEOUT
+    Kernel->timeOut = timeOut;
+#endif
+    gcmkFOOTER_NO();
+}
+
+gceSTATUS
+gckKERNEL_AllocateVirtualCommandBuffer(
+    IN gckKERNEL Kernel,
+    IN gctBOOL InUserSpace,
+    IN OUT gctSIZE_T * Bytes,
+    OUT gctPHYS_ADDR * Physical,
+    OUT gctPOINTER * Logical
+    )
+{
+    gckOS os                             = Kernel->os;
+    gceSTATUS status;
+    gctPOINTER logical                   = gcvNULL;
+    gctSIZE_T pageCount;
+    gctSIZE_T bytes                      = *Bytes;
+    gckVIRTUAL_COMMAND_BUFFER_PTR buffer = gcvNULL;
+    gckMMU mmu;
+    gctUINT32 flag = gcvALLOC_FLAG_NON_CONTIGUOUS;
+
+    gcmkHEADER_ARG("Os=0x%X InUserSpace=%d *Bytes=%lu",
+                   os, InUserSpace, gcmOPT_VALUE(Bytes));
+
+    /* Verify the arguments. */
+    gcmkVERIFY_OBJECT(os, gcvOBJ_OS);
+    gcmkVERIFY_ARGUMENT(Bytes != gcvNULL);
+    gcmkVERIFY_ARGUMENT(*Bytes > 0);
+    gcmkVERIFY_ARGUMENT(Physical != gcvNULL);
+    gcmkVERIFY_ARGUMENT(Logical != gcvNULL);
+
+    gcmkONERROR(gckOS_Allocate(os,
+                               sizeof(gckVIRTUAL_COMMAND_BUFFER),
+                               (gctPOINTER)&buffer));
+
+    gcmkONERROR(gckOS_ZeroMemory(buffer, sizeof(gckVIRTUAL_COMMAND_BUFFER)));
+
+    buffer->bytes = bytes;
+
+    gcmkONERROR(gckOS_AllocatePagedMemoryEx(os,
+                                            flag,
+                                            bytes,
+                                            gcvNULL,
+                                            &buffer->physical));
+
+    if (InUserSpace)
+    {
+        gcmkONERROR(gckOS_CreateUserVirtualMapping(os,
+                                                   buffer->physical,
+                                                   bytes,
+                                                   &logical,
+                                                   &pageCount));
+
+        *Logical =
+        buffer->userLogical = logical;
+    }
+    else
+    {
+        gcmkONERROR(gckOS_CreateKernelVirtualMapping(os,
+                                                     buffer->physical,
+                                                     bytes,
+                                                     &logical,
+                                                     &pageCount));
+
+        *Logical =
+        buffer->kernelLogical = logical;
+    }
+
+    buffer->pageCount = pageCount;
+    buffer->kernel = Kernel;
+
+    gcmkONERROR(gckOS_GetProcessID(&buffer->pid));
+
+#if gcdPROCESS_ADDRESS_SPACE
+    gcmkONERROR(gckKERNEL_GetProcessMMU(Kernel, &mmu));
+    buffer->mmu = mmu;
+#else
+    mmu = Kernel->mmu;
+#endif
+
+    gcmkONERROR(gckMMU_AllocatePages(mmu,
+                                     pageCount,
+                                     &buffer->pageTable,
+                                     &buffer->gpuAddress));
+
+
+    gcmkONERROR(gckOS_MapPagesEx(os,
+                                 Kernel->core,
+                                 buffer->physical,
+                                 pageCount,
+                                 buffer->gpuAddress,
+                                 buffer->pageTable));
+
+    gcmkONERROR(gckMMU_Flush(mmu, gcvSURF_INDEX));
+
+    *Physical = buffer;
+
+    gcmkTRACE_ZONE(gcvLEVEL_INFO, gcvZONE_KERNEL,
+                   "gpuAddress = %x pageCount = %d kernelLogical = %x userLogical=%x",
+                   buffer->gpuAddress, buffer->pageCount,
+                   buffer->kernelLogical, buffer->userLogical);
+
+    gcmkVERIFY_OK(gckOS_AcquireMutex(os, Kernel->virtualBufferLock, gcvINFINITE));
+
+    if (Kernel->virtualBufferHead == gcvNULL)
+    {
+        Kernel->virtualBufferHead =
+        Kernel->virtualBufferTail = buffer;
+    }
+    else
+    {
+        buffer->prev = Kernel->virtualBufferTail;
+        Kernel->virtualBufferTail->next = buffer;
+        Kernel->virtualBufferTail = buffer;
+    }
+
+    gcmkVERIFY_OK(gckOS_ReleaseMutex(os, Kernel->virtualBufferLock));
+
+    gcmkFOOTER_NO();
+    return gcvSTATUS_OK;
+
+OnError:
+    if (buffer->gpuAddress)
+    {
+#if gcdPROCESS_ADDRESS_SPACE
+        gcmkVERIFY_OK(
+            gckMMU_FreePages(mmu, buffer->pageTable, buffer->pageCount));
+#else
+        gcmkVERIFY_OK(
+            gckMMU_FreePages(Kernel->mmu, buffer->pageTable, buffer->pageCount));
+#endif
+    }
+
+    if (buffer->userLogical)
+    {
+        gcmkVERIFY_OK(
+            gckOS_DestroyUserVirtualMapping(os,
+                                            buffer->physical,
+                                            bytes,
+                                            buffer->userLogical));
+    }
+
+    if (buffer->kernelLogical)
+    {
+        gcmkVERIFY_OK(
+            gckOS_DestroyKernelVirtualMapping(os,
+                                              buffer->physical,
+                                              bytes,
+                                              buffer->kernelLogical));
+    }
+
+    if (buffer->physical)
+    {
+        gcmkVERIFY_OK(gckOS_FreePagedMemory(os, buffer->physical, bytes));
+    }
+
+    gcmkVERIFY_OK(gckOS_Free(os, buffer));
+
+    /* Return the status. */
+    gcmkFOOTER();
+    return status;
+}
+
+gceSTATUS
+gckKERNEL_DestroyVirtualCommandBuffer(
+    IN gckKERNEL Kernel,
+    IN gctSIZE_T Bytes,
+    IN gctPHYS_ADDR Physical,
+    IN gctPOINTER Logical
+    )
+{
+    gckOS os;
+    gckKERNEL kernel;
+    gckVIRTUAL_COMMAND_BUFFER_PTR buffer = (gckVIRTUAL_COMMAND_BUFFER_PTR)Physical;
+
+    gcmkHEADER();
+    gcmkVERIFY_ARGUMENT(buffer != gcvNULL);
+
+    kernel = buffer->kernel;
+    os = kernel->os;
+
+    if (!buffer->userLogical)
+    {
+        gcmkVERIFY_OK(gckOS_DestroyKernelVirtualMapping(os,
+                                                        buffer->physical,
+                                                        Bytes,
+                                                        Logical));
+    }
+
+#if !gcdPROCESS_ADDRESS_SPACE
+    gcmkVERIFY_OK(
+        gckMMU_FreePages(kernel->mmu, buffer->pageTable, buffer->pageCount));
+#endif
+
+    gcmkVERIFY_OK(gckOS_UnmapPages(os, buffer->pageCount, buffer->gpuAddress));
+
+    gcmkVERIFY_OK(gckOS_FreePagedMemory(os, buffer->physical, Bytes));
+
+    gcmkVERIFY_OK(gckOS_AcquireMutex(os, kernel->virtualBufferLock, gcvINFINITE));
+
+    if (buffer == kernel->virtualBufferHead)
+    {
+        if ((kernel->virtualBufferHead = buffer->next) == gcvNULL)
+        {
+            kernel->virtualBufferTail = gcvNULL;
+        }
+    }
+    else
+    {
+        buffer->prev->next = buffer->next;
+
+        if (buffer == kernel->virtualBufferTail)
+        {
+            kernel->virtualBufferTail = buffer->prev;
+        }
+        else
+        {
+            buffer->next->prev = buffer->prev;
+        }
+    }
+
+    gcmkVERIFY_OK(gckOS_ReleaseMutex(os, kernel->virtualBufferLock));
+
+    gcmkVERIFY_OK(gckOS_Free(os, buffer));
+
+    gcmkFOOTER_NO();
+    return gcvSTATUS_OK;
+}
+
+gceSTATUS
+gckKERNEL_GetGPUAddress(
+    IN gckKERNEL Kernel,
+    IN gctPOINTER Logical,
+    IN gctBOOL InUserSpace,
+    IN gckVIRTUAL_COMMAND_BUFFER_PTR Buffer,
+    OUT gctUINT32 * Address
+    )
+{
+    gckVIRTUAL_COMMAND_BUFFER_PTR buffer = Buffer;
+    gctPOINTER start;
+
+    gcmkHEADER_ARG("Logical = %x InUserSpace=%d.", Logical, InUserSpace);
+
+    if (InUserSpace)
+    {
+        start = buffer->userLogical;
+    }
+    else
+    {
+        start = buffer->kernelLogical;
+    }
+
+    gcmkASSERT(Logical >= start
+           && (Logical < (gctPOINTER)((gctUINT8_PTR)start + buffer->pageCount * 4096)));
+
+    * Address = buffer->gpuAddress + (gctUINT32)((gctUINT8_PTR)Logical - (gctUINT8_PTR)start);
+
+    gcmkFOOTER_NO();
+    return gcvSTATUS_OK;
+}
+
+gceSTATUS
+gckKERNEL_QueryGPUAddress(
+    IN gckKERNEL Kernel,
+    IN gctUINT32 GpuAddress,
+    OUT gckVIRTUAL_COMMAND_BUFFER_PTR * Buffer
+    )
+{
+    gckVIRTUAL_COMMAND_BUFFER_PTR buffer;
+    gctUINT32 start;
+    gceSTATUS status = gcvSTATUS_NOT_SUPPORTED;
+
+    gcmkVERIFY_OK(gckOS_AcquireMutex(Kernel->os, Kernel->virtualBufferLock, gcvINFINITE));
+
+    /* Walk all command buffers. */
+    for (buffer = Kernel->virtualBufferHead; buffer != gcvNULL; buffer = buffer->next)
+    {
+        start = (gctUINT32)buffer->gpuAddress;
+
+        if (GpuAddress >= start && GpuAddress < (start + buffer->pageCount * 4096))
+        {
+            /* Find a range matched. */
+            *Buffer = buffer;
+            status = gcvSTATUS_OK;
+            break;
+        }
+    }
+
+    gcmkVERIFY_OK(gckOS_ReleaseMutex(Kernel->os, Kernel->virtualBufferLock));
+
+    return status;
+}
+
+#if gcdLINK_QUEUE_SIZE
+static void
+gckLINKQUEUE_Dequeue(
+    IN gckLINKQUEUE LinkQueue
+    )
+{
+    gcmkASSERT(LinkQueue->count == gcdLINK_QUEUE_SIZE);
+
+    LinkQueue->count--;
+    LinkQueue->front = (LinkQueue->front + 1) % gcdLINK_QUEUE_SIZE;
+}
+
+void
+gckLINKQUEUE_Enqueue(
+    IN gckLINKQUEUE LinkQueue,
+    IN gctUINT32 start,
+    IN gctUINT32 end,
+    IN gctUINT32 LinkLow,
+    IN gctUINT32 LinkHigh
+    )
+{
+    if (LinkQueue->count == gcdLINK_QUEUE_SIZE)
+    {
+        gckLINKQUEUE_Dequeue(LinkQueue);
+    }
+
+    gcmkASSERT(LinkQueue->count < gcdLINK_QUEUE_SIZE);
+
+    LinkQueue->count++;
+
+    LinkQueue->data[LinkQueue->rear].start = start;
+    LinkQueue->data[LinkQueue->rear].end = end;
+    LinkQueue->data[LinkQueue->rear].linkLow = LinkLow;
+    LinkQueue->data[LinkQueue->rear].linkHigh = LinkHigh;
+
+
+    gcmkVERIFY_OK(
+        gckOS_GetProcessID(&LinkQueue->data[LinkQueue->rear].pid));
+
+    LinkQueue->rear = (LinkQueue->rear + 1) % gcdLINK_QUEUE_SIZE;
+}
+
+void
+gckLINKQUEUE_GetData(
+    IN gckLINKQUEUE LinkQueue,
+    IN gctUINT32 Index,
+    OUT gckLINKDATA * Data
+    )
+{
+    gcmkASSERT(Index >= 0 && Index < gcdLINK_QUEUE_SIZE);
+
+    *Data = &LinkQueue->data[(Index + LinkQueue->front) % gcdLINK_QUEUE_SIZE];
+}
+#endif
+
+/*
+* gckENTRYQUEUE_Enqueue is called with Command->mutexQueue acquired.
+*/
+gceSTATUS
+gckENTRYQUEUE_Enqueue(
+    IN gckKERNEL Kernel,
+    IN gckENTRYQUEUE Queue,
+    IN gctUINT32 physical,
+    IN gctUINT32 bytes
+    )
+{
+    gctUINT32 next = (Queue->rear + 1) % gcdENTRY_QUEUE_SIZE;
+
+    if (next == Queue->front)
+    {
+        /* Queue is full. */
+        return gcvSTATUS_INVALID_REQUEST;
+    }
+
+    /* Copy data. */
+    Queue->data[Queue->rear].physical = physical;
+    Queue->data[Queue->rear].bytes = bytes;
+
+    gcmkVERIFY_OK(gckOS_MemoryBarrier(Kernel->os, &Queue->rear));
+
+    /* Update rear. */
+    Queue->rear = next;
+
+    return gcvSTATUS_OK;
+}
+
+gceSTATUS
+gckENTRYQUEUE_Dequeue(
+    IN gckENTRYQUEUE Queue,
+    OUT gckENTRYDATA * Data
+    )
+{
+    if (Queue->front == Queue->rear)
+    {
+        /* Queue is empty. */
+        return gcvSTATUS_INVALID_REQUEST;
+    }
+
+    /* Copy data. */
+    *Data = &Queue->data[Queue->front];
+
+    /* Update front. */
+    Queue->front = (Queue->front + 1) % gcdENTRY_QUEUE_SIZE;
+
+    return gcvSTATUS_OK;
+}
+
+/******************************************************************************\
+*************************** Pointer - ID translation ***************************
+\******************************************************************************/
+#define gcdID_TABLE_LENGTH 1024
+typedef struct _gcsINTEGERDB * gckINTEGERDB;
+typedef struct _gcsINTEGERDB
+{
+    gckOS                       os;
+    gctPOINTER*                 table;
+    gctPOINTER                  mutex;
+    gctUINT32                   tableLen;
+    gctUINT32                   currentID;
+    gctUINT32                   unused;
+}
+gcsINTEGERDB;
+
+gceSTATUS
+gckKERNEL_CreateIntegerDatabase(
+    IN gckKERNEL Kernel,
+    OUT gctPOINTER * Database
+    )
+{
+    gceSTATUS status;
+    gckINTEGERDB database = gcvNULL;
+
+    gcmkHEADER_ARG("Kernel=0x%08X Datbase=0x%08X", Kernel, Database);
+
+    gcmkVERIFY_OBJECT(Kernel, gcvOBJ_KERNEL);
+    gcmkVERIFY_ARGUMENT(Database != gcvNULL);
+
+    /* Allocate a database. */
+    gcmkONERROR(gckOS_Allocate(
+        Kernel->os, gcmSIZEOF(gcsINTEGERDB), (gctPOINTER *)&database));
+
+    gcmkONERROR(gckOS_ZeroMemory(database, gcmSIZEOF(gcsINTEGERDB)));
+
+    /* Allocate a pointer table. */
+    gcmkONERROR(gckOS_Allocate(
+        Kernel->os, gcmSIZEOF(gctPOINTER) * gcdID_TABLE_LENGTH, (gctPOINTER *)&database->table));
+
+    gcmkONERROR(gckOS_ZeroMemory(database->table, gcmSIZEOF(gctPOINTER) * gcdID_TABLE_LENGTH));
+
+    /* Allocate a database mutex. */
+    gcmkONERROR(gckOS_CreateMutex(Kernel->os, &database->mutex));
+
+    /* Initialize. */
+    database->currentID = 0;
+    database->unused = gcdID_TABLE_LENGTH;
+    database->os = Kernel->os;
+    database->tableLen = gcdID_TABLE_LENGTH;
+
+    *Database = database;
+
+    gcmkFOOTER_ARG("*Database=0x%08X", *Database);
+    return gcvSTATUS_OK;
+
+OnError:
+    /* Rollback. */
+    if (database)
+    {
+        if (database->table)
+        {
+            gcmkOS_SAFE_FREE(Kernel->os, database->table);
+        }
+
+        gcmkOS_SAFE_FREE(Kernel->os, database);
+    }
+
+    gcmkFOOTER();
+    return status;
+}
+
+gceSTATUS
+gckKERNEL_DestroyIntegerDatabase(
+    IN gckKERNEL Kernel,
+    IN gctPOINTER Database
+    )
+{
+    gckINTEGERDB database = Database;
+
+    gcmkHEADER_ARG("Kernel=0x%08X Datbase=0x%08X", Kernel, Database);
+
+    gcmkVERIFY_OBJECT(Kernel, gcvOBJ_KERNEL);
+    gcmkVERIFY_ARGUMENT(Database != gcvNULL);
+
+    /* Destroy pointer table. */
+    gcmkOS_SAFE_FREE(Kernel->os, database->table);
+
+    /* Destroy database mutex. */
+    gcmkVERIFY_OK(gckOS_DeleteMutex(Kernel->os, database->mutex));
+
+    /* Destroy database. */
+    gcmkOS_SAFE_FREE(Kernel->os, database);
+
+    gcmkFOOTER_NO();
+    return gcvSTATUS_OK;
+}
+
+gceSTATUS
+gckKERNEL_AllocateIntegerId(
+    IN gctPOINTER Database,
+    IN gctPOINTER Pointer,
+    OUT gctUINT32 * Id
+    )
+{
+    gceSTATUS status;
+    gckINTEGERDB database = Database;
+    gctUINT32 i, unused, currentID, tableLen;
+    gctPOINTER * table;
+    gckOS os = database->os;
+    gctBOOL acquired = gcvFALSE;
+
+    gcmkHEADER_ARG("Database=0x%08X Pointer=0x%08X", Database, Pointer);
+
+    gcmkVERIFY_ARGUMENT(Id != gcvNULL);
+
+    gcmkVERIFY_OK(gckOS_AcquireMutex(os, database->mutex, gcvINFINITE));
+    acquired = gcvTRUE;
+
+    if (database->unused < 1)
+    {
+        /* Extend table. */
+        gcmkONERROR(
+            gckOS_Allocate(os,
+                           gcmSIZEOF(gctPOINTER) * (database->tableLen + gcdID_TABLE_LENGTH),
+                           (gctPOINTER *)&table));
+
+        gcmkONERROR(gckOS_ZeroMemory(table + database->tableLen,
+                                     gcmSIZEOF(gctPOINTER) * gcdID_TABLE_LENGTH));
+
+        /* Copy data from old table. */
+        gckOS_MemCopy(table,
+                      database->table,
+                      database->tableLen * gcmSIZEOF(gctPOINTER));
+
+        gcmkOS_SAFE_FREE(os, database->table);
+
+        /* Update databse with new allocated table. */
+        database->table = table;
+        database->currentID = database->tableLen;
+        database->tableLen += gcdID_TABLE_LENGTH;
+        database->unused += gcdID_TABLE_LENGTH;
+    }
+
+    table = database->table;
+    currentID = database->currentID;
+    tableLen = database->tableLen;
+    unused = database->unused;
+
+    /* Connect id with pointer. */
+    table[currentID] = Pointer;
+
+    *Id = currentID + 1;
+
+    /* Update the currentID. */
+    if (--unused > 0)
+    {
+        for (i = 0; i < tableLen; i++)
+        {
+            if (++currentID >= tableLen)
+            {
+                /* Wrap to the begin. */
+                currentID = 0;
+            }
+
+            if (table[currentID] == gcvNULL)
+            {
+                break;
+            }
+        }
+    }
+
+    database->table = table;
+    database->currentID = currentID;
+    database->tableLen = tableLen;
+    database->unused = unused;
+
+    gcmkVERIFY_OK(gckOS_ReleaseMutex(os, database->mutex));
+    acquired = gcvFALSE;
+
+    gcmkFOOTER_ARG("*Id=%d", *Id);
+    return gcvSTATUS_OK;
+
+OnError:
+    if (acquired)
+    {
+        gcmkVERIFY_OK(gckOS_ReleaseMutex(os, database->mutex));
+    }
+
+    gcmkFOOTER();
+    return status;
+}
+
+gceSTATUS
+gckKERNEL_FreeIntegerId(
+    IN gctPOINTER Database,
+    IN gctUINT32 Id
+    )
+{
+    gceSTATUS status;
+    gckINTEGERDB database = Database;
+    gckOS os = database->os;
+    gctBOOL acquired = gcvFALSE;
+
+    gcmkHEADER_ARG("Database=0x%08X Id=%d", Database, Id);
+
+    gcmkVERIFY_OK(gckOS_AcquireMutex(os, database->mutex, gcvINFINITE));
+    acquired = gcvTRUE;
+
+    if (!(Id > 0 && Id <= database->tableLen))
+    {
+        gcmkONERROR(gcvSTATUS_NOT_FOUND);
+    }
+
+    Id -= 1;
+
+    database->table[Id] = gcvNULL;
+
+    if (database->unused++ == 0)
+    {
+        database->currentID = Id;
+    }
+
+    gcmkVERIFY_OK(gckOS_ReleaseMutex(os, database->mutex));
+    acquired = gcvFALSE;
+
+    gcmkFOOTER_NO();
+    return gcvSTATUS_OK;
+
+OnError:
+    if (acquired)
+    {
+        gcmkVERIFY_OK(gckOS_ReleaseMutex(os, database->mutex));
+    }
+
+    gcmkFOOTER();
+    return status;
+}
+
+gceSTATUS
+gckKERNEL_QueryIntegerId(
+    IN gctPOINTER Database,
+    IN gctUINT32 Id,
+    OUT gctPOINTER * Pointer
+    )
+{
+    gceSTATUS status;
+    gckINTEGERDB database = Database;
+    gctPOINTER pointer;
+    gckOS os = database->os;
+    gctBOOL acquired = gcvFALSE;
+
+    gcmkHEADER_ARG("Database=0x%08X Id=%d", Database, Id);
+    gcmkVERIFY_ARGUMENT(Pointer != gcvNULL);
+
+    gcmkVERIFY_OK(gckOS_AcquireMutex(os, database->mutex, gcvINFINITE));
+    acquired = gcvTRUE;
+
+    if (!(Id > 0 && Id <= database->tableLen))
+    {
+        gcmkONERROR(gcvSTATUS_NOT_FOUND);
+    }
+
+    Id -= 1;
+
+    pointer = database->table[Id];
+
+    gcmkVERIFY_OK(gckOS_ReleaseMutex(os, database->mutex));
+    acquired = gcvFALSE;
+
+    if (pointer)
+    {
+        *Pointer = pointer;
+    }
+    else
+    {
+        gcmkONERROR(gcvSTATUS_NOT_FOUND);
+    }
+
+    gcmkFOOTER_ARG("*Pointer=0x%08X", *Pointer);
+    return gcvSTATUS_OK;
+
+OnError:
+    if (acquired)
+    {
+        gcmkVERIFY_OK(gckOS_ReleaseMutex(os, database->mutex));
+    }
+
+    gcmkFOOTER();
+    return status;
+}
+
+
+gctUINT32
+gckKERNEL_AllocateNameFromPointer(
+    IN gckKERNEL Kernel,
+    IN gctPOINTER Pointer
+    )
+{
+    gceSTATUS status;
+    gctUINT32 name;
+    gctPOINTER database = Kernel->db->pointerDatabase;
+
+    gcmkHEADER_ARG("Kernel=0x%X Pointer=0x%X", Kernel, Pointer);
+
+    gcmkONERROR(
+        gckKERNEL_AllocateIntegerId(database, Pointer, &name));
+
+    gcmkFOOTER_ARG("name=%d", name);
+    return name;
+
+OnError:
+    gcmkFOOTER();
+    return 0;
+}
+
+gctPOINTER
+gckKERNEL_QueryPointerFromName(
+    IN gckKERNEL Kernel,
+    IN gctUINT32 Name
+    )
+{
+    gceSTATUS status;
+    gctPOINTER pointer = gcvNULL;
+    gctPOINTER database = Kernel->db->pointerDatabase;
+
+    gcmkHEADER_ARG("Kernel=0x%X Name=%d", Kernel, Name);
+
+    /* Lookup in database to get pointer. */
+    gcmkONERROR(gckKERNEL_QueryIntegerId(database, Name, &pointer));
+
+    gcmkFOOTER_ARG("pointer=0x%X", pointer);
+    return pointer;
+
+OnError:
+    gcmkFOOTER();
+    return gcvNULL;
+}
+
+gceSTATUS
+gckKERNEL_DeleteName(
+    IN gckKERNEL Kernel,
+    IN gctUINT32 Name
+    )
+{
+    gctPOINTER database = Kernel->db->pointerDatabase;
+
+    gcmkHEADER_ARG("Kernel=0x%X Name=0x%X", Kernel, Name);
+
+    /* Free name if exists. */
+    gcmkVERIFY_OK(gckKERNEL_FreeIntegerId(database, Name));
+
+    gcmkFOOTER_NO();
+    return gcvSTATUS_OK;
+}
+
+gceSTATUS
+gckKERNEL_SetRecovery(
+    IN gckKERNEL Kernel,
+    IN gctBOOL  Recovery,
+    IN gctUINT32 StuckDump
+    )
+{
+    Kernel->recovery = Recovery;
+
+    if (Recovery == gcvFALSE)
+    {
+        /* Dump stuck information if Recovery is disabled. */
+        Kernel->stuckDump = gcmMAX(StuckDump, gcvSTUCK_DUMP_USER_COMMAND);
+    }
+
+    return gcvSTATUS_OK;
+}
+
+/*******************************************************************************
+***** Shared Buffer ************************************************************
+*******************************************************************************/
+
+/*******************************************************************************
+**
+**  gckKERNEL_CreateShBuffer
+**
+**  Create shared buffer.
+**  The shared buffer can be used across processes. Other process needs call
+**  gckKERNEL_MapShBuffer before use it.
+**
+**  INPUT:
+**
+**      gckKERNEL Kernel
+**          Pointer to an gckKERNEL object.
+**
+**      gctUINT32 Size
+**          Specify the shared buffer size.
+**
+**  OUTPUT:
+**
+**      gctSHBUF * ShBuf
+**          Pointer to hold return shared buffer handle.
+*/
+gceSTATUS
+gckKERNEL_CreateShBuffer(
+    IN gckKERNEL Kernel,
+    IN gctUINT32 Size,
+    OUT gctSHBUF * ShBuf
+    )
+{
+    gceSTATUS status;
+    gcsSHBUF_PTR shBuf = gcvNULL;
+
+    gcmkHEADER_ARG("Kernel=0x%X, Size=%u", Kernel, Size);
+
+    /* Verify the arguments. */
+    gcmkVERIFY_OBJECT(Kernel, gcvOBJ_KERNEL);
+
+    if (Size == 0)
+    {
+        /* Invalid size. */
+        gcmkONERROR(gcvSTATUS_INVALID_ARGUMENT);
+    }
+    else if (Size > 1024)
+    {
+        /* Limite shared buffer size. */
+        gcmkONERROR(gcvSTATUS_OUT_OF_RESOURCES);
+    }
+
+    /* Create a shared buffer structure. */
+    gcmkONERROR(
+        gckOS_Allocate(Kernel->os,
+                       sizeof (gcsSHBUF),
+                       (gctPOINTER *)&shBuf));
+
+    /* Initialize shared buffer. */
+    shBuf->id        = 0;
+    shBuf->reference = gcvNULL;
+    shBuf->size      = Size;
+    shBuf->data      = gcvNULL;
+
+    /* Allocate integer id for this shared buffer. */
+    gcmkONERROR(
+        gckKERNEL_AllocateIntegerId(Kernel->db->pointerDatabase,
+                                    shBuf,
+                                    &shBuf->id));
+
+    /* Allocate atom. */
+    gcmkONERROR(gckOS_AtomConstruct(Kernel->os, &shBuf->reference));
+
+    /* Set default reference count to 1. */
+    gcmkVERIFY_OK(gckOS_AtomSet(Kernel->os, shBuf->reference, 1));
+
+    /* Return integer id. */
+    *ShBuf = (gctSHBUF)(gctUINTPTR_T)shBuf->id;
+
+    gcmkFOOTER_ARG("*ShBuf=%u", shBuf->id);
+    return gcvSTATUS_OK;
+
+OnError:
+    /* Error roll back. */
+    if (shBuf != gcvNULL)
+    {
+        if (shBuf->id != 0)
+        {
+            gcmkVERIFY_OK(
+                gckKERNEL_FreeIntegerId(Kernel->db->pointerDatabase,
+                                        shBuf->id));
+        }
+
+        gcmkOS_SAFE_FREE(Kernel->os, shBuf);
+    }
+
+    gcmkFOOTER();
+    return status;
+}
+
+/*******************************************************************************
+**
+**  gckKERNEL_DestroyShBuffer
+**
+**  Destroy shared buffer.
+**  This will decrease reference of specified shared buffer and do actual
+**  destroy when no reference on it.
+**
+**  INPUT:
+**
+**      gckKERNEL Kernel
+**          Pointer to an gckKERNEL object.
+**
+**      gctSHBUF ShBuf
+**          Specify the shared buffer to be destroyed.
+**
+**  OUTPUT:
+**
+**      Nothing.
+*/
+gceSTATUS
+gckKERNEL_DestroyShBuffer(
+    IN gckKERNEL Kernel,
+    IN gctSHBUF ShBuf
+    )
+{
+    gceSTATUS status;
+    gcsSHBUF_PTR shBuf;
+    gctINT32 oldValue = 0;
+    gctBOOL acquired = gcvFALSE;
+
+    gcmkHEADER_ARG("Kernel=0x%X ShBuf=%u",
+                   Kernel, (gctUINT32)(gctUINTPTR_T) ShBuf);
+
+    /* Verify the arguments. */
+    gcmkVERIFY_OBJECT(Kernel, gcvOBJ_KERNEL);
+    gcmkVERIFY_ARGUMENT(ShBuf != gcvNULL);
+
+    /* Acquire mutex. */
+    gcmkONERROR(
+        gckOS_AcquireMutex(Kernel->os,
+                           Kernel->db->pointerDatabaseMutex,
+                           gcvINFINITE));
+    acquired = gcvTRUE;
+
+    /* Find shared buffer structure. */
+    gcmkONERROR(
+        gckKERNEL_QueryIntegerId(Kernel->db->pointerDatabase,
+                                 (gctUINT32)(gctUINTPTR_T)ShBuf,
+                                 (gctPOINTER)&shBuf));
+
+    gcmkASSERT(shBuf->id == (gctUINT32)(gctUINTPTR_T)ShBuf);
+
+    /* Decrease the reference count. */
+    gckOS_AtomDecrement(Kernel->os, shBuf->reference, &oldValue);
+
+    if (oldValue == 1)
+    {
+        /* Free integer id. */
+        gcmkVERIFY_OK(
+            gckKERNEL_FreeIntegerId(Kernel->db->pointerDatabase,
+                                    shBuf->id));
+
+        /* Free atom. */
+        gcmkVERIFY_OK(gckOS_AtomDestroy(Kernel->os, shBuf->reference));
+
+        if (shBuf->data)
+        {
+            gcmkOS_SAFE_FREE(Kernel->os, shBuf->data);
+            shBuf->data = gcvNULL;
+        }
+
+        /* Free the shared buffer. */
+        gcmkOS_SAFE_FREE(Kernel->os, shBuf);
+    }
+
+    /* Release the mutex. */
+    gcmkVERIFY_OK(
+        gckOS_ReleaseMutex(Kernel->os, Kernel->db->pointerDatabaseMutex));
+    acquired = gcvFALSE;
+
+    gcmkFOOTER_NO();
+    return gcvSTATUS_OK;
+
+OnError:
+    if (acquired)
+    {
+        /* Release the mutex. */
+        gcmkVERIFY_OK(
+            gckOS_ReleaseMutex(Kernel->os, Kernel->db->pointerDatabaseMutex));
+    }
+
+    gcmkFOOTER();
+    return status;
+}
+
+/*******************************************************************************
+**
+**  gckKERNEL_MapShBuffer
+**
+**  Map shared buffer into this process so that it can be used in this process.
+**  This will increase reference count on the specified shared buffer.
+**  Call gckKERNEL_DestroyShBuffer to dereference.
+**
+**  INPUT:
+**
+**      gckKERNEL Kernel
+**          Pointer to an gckKERNEL object.
+**
+**      gctSHBUF ShBuf
+**          Specify the shared buffer to be mapped.
+**
+**  OUTPUT:
+**
+**      Nothing.
+*/
+gceSTATUS
+gckKERNEL_MapShBuffer(
+    IN gckKERNEL Kernel,
+    IN gctSHBUF ShBuf
+    )
+{
+    gceSTATUS status;
+    gcsSHBUF_PTR shBuf;
+    gctINT32 oldValue = 0;
+    gctBOOL acquired = gcvFALSE;
+
+    gcmkHEADER_ARG("Kernel=0x%X ShBuf=%u",
+                   Kernel, (gctUINT32)(gctUINTPTR_T) ShBuf);
+
+    /* Verify the arguments. */
+    gcmkVERIFY_OBJECT(Kernel, gcvOBJ_KERNEL);
+    gcmkVERIFY_ARGUMENT(ShBuf != gcvNULL);
+
+    /* Acquire mutex. */
+    gcmkONERROR(
+        gckOS_AcquireMutex(Kernel->os,
+                           Kernel->db->pointerDatabaseMutex,
+                           gcvINFINITE));
+    acquired = gcvTRUE;
+
+    /* Find shared buffer structure. */
+    gcmkONERROR(
+        gckKERNEL_QueryIntegerId(Kernel->db->pointerDatabase,
+                                 (gctUINT32)(gctUINTPTR_T)ShBuf,
+                                 (gctPOINTER)&shBuf));
+
+    gcmkASSERT(shBuf->id == (gctUINT32)(gctUINTPTR_T)ShBuf);
+
+    /* Increase the reference count. */
+    gckOS_AtomIncrement(Kernel->os, shBuf->reference, &oldValue);
+
+    /* Release the mutex. */
+    gcmkVERIFY_OK(
+        gckOS_ReleaseMutex(Kernel->os, Kernel->db->pointerDatabaseMutex));
+    acquired = gcvFALSE;
+
+    gcmkFOOTER_NO();
+    return gcvSTATUS_OK;
+
+OnError:
+    if (acquired)
+    {
+        /* Release the mutex. */
+        gcmkVERIFY_OK(
+            gckOS_ReleaseMutex(Kernel->os, Kernel->db->pointerDatabaseMutex));
+    }
+
+    gcmkFOOTER();
+    return status;
+}
+
+/*******************************************************************************
+**
+**  gckKERNEL_WriteShBuffer
+**
+**  Write user data into shared buffer.
+**
+**  INPUT:
+**
+**      gckKERNEL Kernel
+**          Pointer to an gckKERNEL object.
+**
+**      gctSHBUF ShBuf
+**          Specify the shared buffer to be written to.
+**
+**      gctPOINTER UserData
+**          User mode pointer to hold the source data.
+**
+**      gctUINT32 ByteCount
+**          Specify number of bytes to write. If this is larger than
+**          shared buffer size, gcvSTATUS_INVALID_ARGUMENT is returned.
+**
+**  OUTPUT:
+**
+**      Nothing.
+*/
+gceSTATUS
+gckKERNEL_WriteShBuffer(
+    IN gckKERNEL Kernel,
+    IN gctSHBUF ShBuf,
+    IN gctPOINTER UserData,
+    IN gctUINT32 ByteCount
+    )
+{
+    gceSTATUS status;
+    gcsSHBUF_PTR shBuf;
+    gctBOOL acquired = gcvFALSE;
+
+    gcmkHEADER_ARG("Kernel=0x%X ShBuf=%u UserData=0x%X ByteCount=%u",
+                   Kernel, (gctUINT32)(gctUINTPTR_T) ShBuf, UserData, ByteCount);
+
+    /* Verify the arguments. */
+    gcmkVERIFY_OBJECT(Kernel, gcvOBJ_KERNEL);
+    gcmkVERIFY_ARGUMENT(ShBuf != gcvNULL);
+
+    /* Acquire mutex. */
+    gcmkONERROR(
+        gckOS_AcquireMutex(Kernel->os,
+                           Kernel->db->pointerDatabaseMutex,
+                           gcvINFINITE));
+    acquired = gcvTRUE;
+
+    /* Find shared buffer structure. */
+    gcmkONERROR(
+        gckKERNEL_QueryIntegerId(Kernel->db->pointerDatabase,
+                                 (gctUINT32)(gctUINTPTR_T)ShBuf,
+                                 (gctPOINTER)&shBuf));
+
+    gcmkASSERT(shBuf->id == (gctUINT32)(gctUINTPTR_T)ShBuf);
+
+    if ((ByteCount > shBuf->size) ||
+        (ByteCount == 0) ||
+        (UserData  == gcvNULL))
+    {
+        /* Exceeds buffer max size or invalid. */
+        gcmkONERROR(gcvSTATUS_INVALID_ARGUMENT);
+    }
+
+    if (shBuf->data == gcvNULL)
+    {
+        /* Allocate buffer data when first time write. */
+        gcmkONERROR(gckOS_Allocate(Kernel->os, ByteCount, &shBuf->data));
+    }
+
+    /* Copy data from user. */
+    gcmkONERROR(
+        gckOS_CopyFromUserData(Kernel->os,
+                               shBuf->data,
+                               UserData,
+                               ByteCount));
+
+    /* Release the mutex. */
+    gcmkVERIFY_OK(
+        gckOS_ReleaseMutex(Kernel->os, Kernel->db->pointerDatabaseMutex));
+    acquired = gcvFALSE;
+
+    gcmkFOOTER_NO();
+    return gcvSTATUS_OK;
+
+OnError:
+    if (acquired)
+    {
+        /* Release the mutex. */
+        gcmkVERIFY_OK(
+            gckOS_ReleaseMutex(Kernel->os, Kernel->db->pointerDatabaseMutex));
+    }
+
+    gcmkFOOTER();
+    return status;
+}
+
+/*******************************************************************************
+**
+**  gckKERNEL_ReadShBuffer
+**
+**  Read data from shared buffer and copy to user pointer.
+**
+**  INPUT:
+**
+**      gckKERNEL Kernel
+**          Pointer to an gckKERNEL object.
+**
+**      gctSHBUF ShBuf
+**          Specify the shared buffer to be read from.
+**
+**      gctPOINTER UserData
+**          User mode pointer to save output data.
+**
+**      gctUINT32 ByteCount
+**          Specify number of bytes to read.
+**          If this is larger than shared buffer size, only avaiable bytes are
+**          copied. If smaller, copy requested size.
+**
+**  OUTPUT:
+**
+**      gctUINT32 * BytesRead
+**          Pointer to hold how many bytes actually read from shared buffer.
+*/
+gceSTATUS
+gckKERNEL_ReadShBuffer(
+    IN gckKERNEL Kernel,
+    IN gctSHBUF ShBuf,
+    IN gctPOINTER UserData,
+    IN gctUINT32 ByteCount,
+    OUT gctUINT32 * BytesRead
+    )
+{
+    gceSTATUS status;
+    gcsSHBUF_PTR shBuf;
+    gctUINT32 bytes;
+    gctBOOL acquired = gcvFALSE;
+
+    gcmkHEADER_ARG("Kernel=0x%X ShBuf=%u UserData=0x%X ByteCount=%u",
+                   Kernel, (gctUINT32)(gctUINTPTR_T) ShBuf, UserData, ByteCount);
+
+    /* Verify the arguments. */
+    gcmkVERIFY_OBJECT(Kernel, gcvOBJ_KERNEL);
+    gcmkVERIFY_ARGUMENT(ShBuf != gcvNULL);
+
+    /* Acquire mutex. */
+    gcmkONERROR(
+        gckOS_AcquireMutex(Kernel->os,
+                           Kernel->db->pointerDatabaseMutex,
+                           gcvINFINITE));
+    acquired = gcvTRUE;
+
+    /* Find shared buffer structure. */
+    gcmkONERROR(
+        gckKERNEL_QueryIntegerId(Kernel->db->pointerDatabase,
+                                 (gctUINT32)(gctUINTPTR_T)ShBuf,
+                                 (gctPOINTER)&shBuf));
+
+    gcmkASSERT(shBuf->id == (gctUINT32)(gctUINTPTR_T)ShBuf);
+
+    if (shBuf->data == gcvNULL)
+    {
+        *BytesRead = 0;
+
+        /* No data in shared buffer, skip copy. */
+        status = gcvSTATUS_SKIP;
+        goto OnError;
+    }
+    else if (ByteCount == 0)
+    {
+        /* Invalid size to read. */
+        gcmkONERROR(gcvSTATUS_INVALID_ARGUMENT);
+    }
+
+    /* Determine bytes to copy. */
+    bytes = (ByteCount < shBuf->size) ? ByteCount : shBuf->size;
+
+    /* Copy data to user. */
+    gcmkONERROR(
+        gckOS_CopyToUserData(Kernel->os,
+                             shBuf->data,
+                             UserData,
+                             bytes));
+
+    /* Return copied size. */
+    *BytesRead = bytes;
+
+    /* Release the mutex. */
+    gcmkVERIFY_OK(
+        gckOS_ReleaseMutex(Kernel->os, Kernel->db->pointerDatabaseMutex));
+    acquired = gcvFALSE;
+
+    gcmkFOOTER_ARG("*BytesRead=%u", bytes);
+    return gcvSTATUS_OK;
+
+OnError:
+    if (acquired)
+    {
+        /* Release the mutex. */
+        gcmkVERIFY_OK(
+            gckOS_ReleaseMutex(Kernel->os, Kernel->db->pointerDatabaseMutex));
+    }
+
+    gcmkFOOTER();
+    return status;
+}
+
+/*******************************************************************************\
+********************************* Fence *****************************************
+\*******************************************************************************/
+
+gceSTATUS
+gckFENCE_Create(
+    IN gckOS Os,
+    IN gckKERNEL Kernel,
+    OUT gckFENCE * Fence
+    )
+{
+    gceSTATUS status;
+    gckFENCE fence = gcvNULL;
+    gctSIZE_T pageSize = 4096;
+
+    gcmkONERROR(gckOS_Allocate(Os, gcmSIZEOF(gcsFENCE), (gctPOINTER *)&fence));
+
+    gcmkONERROR(gckOS_CreateMutex(Os, (gctPOINTER *)&fence->mutex));
+
+    gcmkONERROR(gckOS_AllocateNonPagedMemory(
+        Os,
+        gcvFALSE,
+        &pageSize,
+        &fence->physical,
+        &fence->logical
+        ));
+
+    gcmkONERROR(gckHARDWARE_ConvertLogical(
+        Kernel->hardware,
+        fence->logical,
+        gcvFALSE,
+        &fence->address
+        ));
+
+    *Fence = fence;
+
+    return gcvSTATUS_OK;
+OnError:
+    if (fence)
+    {
+        gckFENCE_Destory(Os, fence);
+    }
+
+    return status;
+}
+
+gceSTATUS
+gckFENCE_Destory(
+    IN gckOS Os,
+    OUT gckFENCE Fence
+    )
+{
+    if (Fence->mutex)
+    {
+        gcmkVERIFY_OK(gckOS_DeleteMutex(Os, Fence->mutex));
+    }
+
+    if (Fence->logical)
+    {
+        gcmkVERIFY_OK(gckOS_FreeNonPagedMemory(
+            Os,
+            4096,
+            Fence->physical,
+            Fence->logical
+            ));
+    }
+
+    gcmkOS_SAFE_FREE(Os, Fence);
+
+    return gcvSTATUS_OK;
+}
+
+/*******************************************************************************
+***** Test Code ****************************************************************
+*******************************************************************************/
+
diff --git a/src/hal/kernel/gc_hal_kernel.h b/src/hal/kernel/gc_hal_kernel.h
new file mode 100755
index 0000000..14419e8
--- /dev/null
+++ b/src/hal/kernel/gc_hal_kernel.h
@@ -0,0 +1,1485 @@
+/****************************************************************************
+*
+*    The MIT License (MIT)
+*
+*    Copyright (c) 2014 Vivante Corporation
+*
+*    Permission is hereby granted, free of charge, to any person obtaining a
+*    copy of this software and associated documentation files (the "Software"),
+*    to deal in the Software without restriction, including without limitation
+*    the rights to use, copy, modify, merge, publish, distribute, sublicense,
+*    and/or sell copies of the Software, and to permit persons to whom the
+*    Software is furnished to do so, subject to the following conditions:
+*
+*    The above copyright notice and this permission notice shall be included in
+*    all copies or substantial portions of the Software.
+*
+*    THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+*    IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+*    FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+*    AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+*    LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+*    FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+*    DEALINGS IN THE SOFTWARE.
+*
+*****************************************************************************
+*
+*    The GPL License (GPL)
+*
+*    Copyright (C) 2014  Vivante Corporation
+*
+*    This program is free software; you can redistribute it and/or
+*    modify it under the terms of the GNU General Public License
+*    as published by the Free Software Foundation; either version 2
+*    of the License, or (at your option) any later version.
+*
+*    This program is distributed in the hope that it will be useful,
+*    but WITHOUT ANY WARRANTY; without even the implied warranty of
+*    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+*    GNU General Public License for more details.
+*
+*    You should have received a copy of the GNU General Public License
+*    along with this program; if not, write to the Free Software Foundation,
+*    Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+*
+*****************************************************************************
+*
+*    Note: This software is released under dual MIT and GPL licenses. A
+*    recipient may use this file under the terms of either the MIT license or
+*    GPL License. If you wish to use only one license not the other, you can
+*    indicate your decision by deleting one of the above license notices in your
+*    version of this file.
+*
+*****************************************************************************/
+
+
+#ifndef __gc_hal_kernel_h_
+#define __gc_hal_kernel_h_
+
+#include "gc_hal.h"
+#include "gc_hal_kernel_hardware.h"
+#include "gc_hal_driver.h"
+
+#include "gc_hal_kernel_mutex.h"
+
+
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/*******************************************************************************
+***** New MMU Defination *******************************************************/
+#define gcdMMU_MTLB_SHIFT           22
+#define gcdMMU_STLB_4K_SHIFT        12
+#define gcdMMU_STLB_64K_SHIFT       16
+
+#define gcdMMU_MTLB_BITS            (32 - gcdMMU_MTLB_SHIFT)
+#define gcdMMU_PAGE_4K_BITS         gcdMMU_STLB_4K_SHIFT
+#define gcdMMU_STLB_4K_BITS         (32 - gcdMMU_MTLB_BITS - gcdMMU_PAGE_4K_BITS)
+#define gcdMMU_PAGE_64K_BITS        gcdMMU_STLB_64K_SHIFT
+#define gcdMMU_STLB_64K_BITS        (32 - gcdMMU_MTLB_BITS - gcdMMU_PAGE_64K_BITS)
+
+#define gcdMMU_MTLB_ENTRY_NUM       (1 << gcdMMU_MTLB_BITS)
+#define gcdMMU_MTLB_SIZE            (gcdMMU_MTLB_ENTRY_NUM << 2)
+#define gcdMMU_STLB_4K_ENTRY_NUM    (1 << gcdMMU_STLB_4K_BITS)
+#define gcdMMU_STLB_4K_SIZE         (gcdMMU_STLB_4K_ENTRY_NUM << 2)
+#define gcdMMU_PAGE_4K_SIZE         (1 << gcdMMU_STLB_4K_SHIFT)
+#define gcdMMU_STLB_64K_ENTRY_NUM   (1 << gcdMMU_STLB_64K_BITS)
+#define gcdMMU_STLB_64K_SIZE        (gcdMMU_STLB_64K_ENTRY_NUM << 2)
+#define gcdMMU_PAGE_64K_SIZE        (1 << gcdMMU_STLB_64K_SHIFT)
+
+#define gcdMMU_MTLB_MASK            (~((1U << gcdMMU_MTLB_SHIFT)-1))
+#define gcdMMU_STLB_4K_MASK         ((~0U << gcdMMU_STLB_4K_SHIFT) ^ gcdMMU_MTLB_MASK)
+#define gcdMMU_PAGE_4K_MASK         (gcdMMU_PAGE_4K_SIZE - 1)
+#define gcdMMU_STLB_64K_MASK        ((~((1U << gcdMMU_STLB_64K_SHIFT)-1)) ^ gcdMMU_MTLB_MASK)
+#define gcdMMU_PAGE_64K_MASK        (gcdMMU_PAGE_64K_SIZE - 1)
+
+/* Page offset definitions. */
+#define gcdMMU_OFFSET_4K_BITS       (32 - gcdMMU_MTLB_BITS - gcdMMU_STLB_4K_BITS)
+#define gcdMMU_OFFSET_4K_MASK       ((1U << gcdMMU_OFFSET_4K_BITS) - 1)
+#define gcdMMU_OFFSET_16K_BITS      (32 - gcdMMU_MTLB_BITS - gcdMMU_STLB_16K_BITS)
+#define gcdMMU_OFFSET_16K_MASK      ((1U << gcdMMU_OFFSET_16K_BITS) - 1)
+
+#define gcdMMU_MTLB_PRESENT         0x00000001
+#define gcdMMU_MTLB_EXCEPTION       0x00000002
+#define gcdMMU_MTLB_4K_PAGE         0x00000000
+
+#define gcdMMU_STLB_PRESENT         0x00000001
+#define gcdMMU_STLB_EXCEPTION       0x00000002
+#define gcdMMU_STLB_4K_PAGE         0x00000000
+
+/*******************************************************************************
+***** Stuck Dump Level ********************************************************/
+
+/* Dump nonthing when stuck happens. */
+#define gcvSTUCK_DUMP_NONE          0
+
+/* Dump GPU state and memory near stuck point. */
+#define gcvSTUCK_DUMP_NEARBY_MEMORY 1
+
+/* Beside gcvSTUCK_DUMP_NEARBY_MEMORY, dump context buffer and user command buffer. */
+#define gcvSTUCK_DUMP_USER_COMMAND  2
+
+/* Beside gcvSTUCK_DUMP_USER_COMMAND, commit will be stall
+** to make sure command causing stuck isn't missed. */
+#define gcvSTUCK_DUMP_STALL_COMMAND 3
+
+/* Beside gcvSTUCK_DUMP_USER_COMMAND, dump kernel command buffer. */
+#define gcvSTUCK_DUMP_ALL_COMMAND   4
+
+/*******************************************************************************
+***** Process Secure Cache ****************************************************/
+
+#define gcdSECURE_CACHE_LRU         1
+#define gcdSECURE_CACHE_LINEAR      2
+#define gcdSECURE_CACHE_HASH        3
+#define gcdSECURE_CACHE_TABLE       4
+
+#define gcvPAGE_TABLE_DIRTY_BIT_OTHER   (1 << 0)
+#define gcvPAGE_TABLE_DIRTY_BIT_FE      (1 << 1)
+
+typedef struct _gcskLOGICAL_CACHE * gcskLOGICAL_CACHE_PTR;
+typedef struct _gcskLOGICAL_CACHE   gcskLOGICAL_CACHE;
+struct _gcskLOGICAL_CACHE
+{
+    /* Logical address. */
+    gctPOINTER                      logical;
+
+    /* DMAable address. */
+    gctUINT32                       dma;
+
+#if gcdSECURE_CACHE_METHOD == gcdSECURE_CACHE_HASH
+    /* Pointer to the previous and next hash tables. */
+    gcskLOGICAL_CACHE_PTR           nextHash;
+    gcskLOGICAL_CACHE_PTR           prevHash;
+#endif
+
+#if gcdSECURE_CACHE_METHOD != gcdSECURE_CACHE_TABLE
+    /* Pointer to the previous and next slot. */
+    gcskLOGICAL_CACHE_PTR           next;
+    gcskLOGICAL_CACHE_PTR           prev;
+#endif
+
+#if gcdSECURE_CACHE_METHOD == gcdSECURE_CACHE_LINEAR
+    /* Time stamp. */
+    gctUINT64                       stamp;
+#endif
+};
+
+typedef struct _gcskSECURE_CACHE * gcskSECURE_CACHE_PTR;
+typedef struct _gcskSECURE_CACHE
+{
+    /* Cache memory. */
+    gcskLOGICAL_CACHE               cache[1 + gcdSECURE_CACHE_SLOTS];
+
+    /* Last known index for LINEAR mode. */
+    gcskLOGICAL_CACHE_PTR           cacheIndex;
+
+    /* Current free slot for LINEAR mode. */
+    gctUINT32                       cacheFree;
+
+    /* Time stamp for LINEAR mode. */
+    gctUINT64                       cacheStamp;
+
+#if gcdSECURE_CACHE_METHOD == gcdSECURE_CACHE_HASH
+    /* Hash table for HASH mode. */
+    gcskLOGICAL_CACHE              hash[256];
+#endif
+}
+gcskSECURE_CACHE;
+
+/*******************************************************************************
+***** Process Database Management *********************************************/
+
+typedef enum _gceDATABASE_TYPE
+{
+    gcvDB_VIDEO_MEMORY = 1,             /* Video memory created. */
+    gcvDB_COMMAND_BUFFER,               /* Command Buffer. */
+    gcvDB_NON_PAGED,                    /* Non paged memory. */
+    gcvDB_CONTIGUOUS,                   /* Contiguous memory. */
+    gcvDB_SIGNAL,                       /* Signal. */
+    gcvDB_VIDEO_MEMORY_LOCKED,          /* Video memory locked. */
+    gcvDB_CONTEXT,                      /* Context */
+    gcvDB_IDLE,                         /* GPU idle. */
+    gcvDB_MAP_MEMORY,                   /* Map memory */
+    gcvDB_MAP_USER_MEMORY,              /* Map user memory */
+    gcvDB_SYNC_POINT,                   /* Sync point. */
+    gcvDB_SHBUF,                        /* Shared buffer. */
+}
+gceDATABASE_TYPE;
+
+#define gcdDATABASE_TYPE_MASK           0x000000FF
+#define gcdDB_VIDEO_MEMORY_TYPE_MASK    0x0000FF00
+#define gcdDB_VIDEO_MEMORY_TYPE_SHIFT   8
+
+#define gcdDB_VIDEO_MEMORY_POOL_MASK    0x00FF0000
+#define gcdDB_VIDEO_MEMORY_POOL_SHIFT   16
+
+typedef struct _gcsDATABASE_RECORD *    gcsDATABASE_RECORD_PTR;
+typedef struct _gcsDATABASE_RECORD
+{
+    /* Pointer to kernel. */
+    gckKERNEL                           kernel;
+
+    /* Pointer to next database record. */
+    gcsDATABASE_RECORD_PTR              next;
+
+    /* Type of record. */
+    gceDATABASE_TYPE                    type;
+
+    /* Data for record. */
+    gctPOINTER                          data;
+    gctPHYS_ADDR                        physical;
+    gctSIZE_T                           bytes;
+}
+gcsDATABASE_RECORD;
+
+typedef struct _gcsDATABASE *           gcsDATABASE_PTR;
+typedef struct _gcsDATABASE
+{
+    /* Pointer to next entry is hash list. */
+    gcsDATABASE_PTR                     next;
+    gctSIZE_T                           slot;
+
+    /* Process ID. */
+    gctUINT32                           processID;
+
+    /* Sizes to query. */
+    gcsDATABASE_COUNTERS                vidMem;
+    gcsDATABASE_COUNTERS                nonPaged;
+    gcsDATABASE_COUNTERS                contiguous;
+    gcsDATABASE_COUNTERS                mapUserMemory;
+    gcsDATABASE_COUNTERS                mapMemory;
+    gcsDATABASE_COUNTERS                virtualCommandBuffer;
+
+    gcsDATABASE_COUNTERS                vidMemType[gcvSURF_NUM_TYPES];
+    /* Counter for each video memory pool. */
+    gcsDATABASE_COUNTERS                vidMemPool[gcvPOOL_NUMBER_OF_POOLS];
+    gctPOINTER                          counterMutex;
+
+    /* Idle time management. */
+    gctUINT64                           lastIdle;
+    gctUINT64                           idle;
+
+    /* Pointer to database. */
+    gcsDATABASE_RECORD_PTR              list[48];
+
+#if gcdSECURE_USER
+    /* Secure cache. */
+    gcskSECURE_CACHE                    cache;
+#endif
+
+    gctPOINTER                          handleDatabase;
+    gctPOINTER                          handleDatabaseMutex;
+
+#if gcdPROCESS_ADDRESS_SPACE
+    gckMMU                              mmu;
+#endif
+}
+gcsDATABASE;
+
+typedef struct _gcsRECORDER * gckRECORDER;
+
+typedef struct _gcsFDPRIVATE *          gcsFDPRIVATE_PTR;
+typedef struct _gcsFDPRIVATE
+{
+    gctINT                              (* release) (gcsFDPRIVATE_PTR Private);
+}
+gcsFDPRIVATE;
+
+/* Create a process database that will contain all its allocations. */
+gceSTATUS
+gckKERNEL_CreateProcessDB(
+    IN gckKERNEL Kernel,
+    IN gctUINT32 ProcessID
+    );
+
+/* Add a record to the process database. */
+gceSTATUS
+gckKERNEL_AddProcessDB(
+    IN gckKERNEL Kernel,
+    IN gctUINT32 ProcessID,
+    IN gceDATABASE_TYPE Type,
+    IN gctPOINTER Pointer,
+    IN gctPHYS_ADDR Physical,
+    IN gctSIZE_T Size
+    );
+
+/* Remove a record to the process database. */
+gceSTATUS
+gckKERNEL_RemoveProcessDB(
+    IN gckKERNEL Kernel,
+    IN gctUINT32 ProcessID,
+    IN gceDATABASE_TYPE Type,
+    IN gctPOINTER Pointer
+    );
+
+/* Destroy the process database. */
+gceSTATUS
+gckKERNEL_DestroyProcessDB(
+    IN gckKERNEL Kernel,
+    IN gctUINT32 ProcessID
+    );
+
+/* Find a record to the process database. */
+gceSTATUS
+gckKERNEL_FindProcessDB(
+    IN gckKERNEL Kernel,
+    IN gctUINT32 ProcessID,
+    IN gctUINT32 ThreadID,
+    IN gceDATABASE_TYPE Type,
+    IN gctPOINTER Pointer,
+    OUT gcsDATABASE_RECORD_PTR Record
+    );
+
+/* Query the process database. */
+gceSTATUS
+gckKERNEL_QueryProcessDB(
+    IN gckKERNEL Kernel,
+    IN gctUINT32 ProcessID,
+    IN gctBOOL LastProcessID,
+    IN gceDATABASE_TYPE Type,
+    OUT gcuDATABASE_INFO * Info
+    );
+
+/* Dump the process database. */
+gceSTATUS
+gckKERNEL_DumpProcessDB(
+    IN gckKERNEL Kernel
+    );
+
+/* Dump the video memory usage for process specified. */
+gceSTATUS
+gckKERNEL_DumpVidMemUsage(
+    IN gckKERNEL Kernel,
+    IN gctINT32 ProcessID
+    );
+
+gceSTATUS
+gckKERNEL_FindDatabase(
+    IN gckKERNEL Kernel,
+    IN gctUINT32 ProcessID,
+    IN gctBOOL LastProcessID,
+    OUT gcsDATABASE_PTR * Database
+    );
+
+gceSTATUS
+gckKERNEL_FindHandleDatbase(
+    IN gckKERNEL Kernel,
+    IN gctUINT32 ProcessID,
+    OUT gctPOINTER * HandleDatabase,
+    OUT gctPOINTER * HandleDatabaseMutex
+    );
+
+gceSTATUS
+gckKERNEL_GetProcessMMU(
+    IN gckKERNEL Kernel,
+    OUT gckMMU * Mmu
+    );
+
+gceSTATUS
+gckKERNEL_SetRecovery(
+    IN gckKERNEL Kernel,
+    IN gctBOOL   Recovery,
+    IN gctUINT32 StuckDump
+    );
+
+gceSTATUS
+gckMMU_FlatMapping(
+    IN gckMMU Mmu,
+    IN gctUINT32 Physical
+    );
+
+gceSTATUS
+gckMMU_GetPageEntry(
+    IN gckMMU Mmu,
+    IN gctUINT32 Address,
+    IN gctUINT32_PTR *PageTable
+    );
+
+gceSTATUS
+gckMMU_FreePagesEx(
+    IN gckMMU Mmu,
+    IN gctUINT32 Address,
+    IN gctSIZE_T PageCount
+    );
+
+gceSTATUS
+gckKERNEL_CreateIntegerDatabase(
+    IN gckKERNEL Kernel,
+    OUT gctPOINTER * Database
+    );
+
+gceSTATUS
+gckKERNEL_DestroyIntegerDatabase(
+    IN gckKERNEL Kernel,
+    IN gctPOINTER Database
+    );
+
+gceSTATUS
+gckKERNEL_AllocateIntegerId(
+    IN gctPOINTER Database,
+    IN gctPOINTER Pointer,
+    OUT gctUINT32 * Id
+    );
+
+gceSTATUS
+gckKERNEL_FreeIntegerId(
+    IN gctPOINTER Database,
+    IN gctUINT32 Id
+    );
+
+gceSTATUS
+gckKERNEL_QueryIntegerId(
+    IN gctPOINTER Database,
+    IN gctUINT32 Id,
+    OUT gctPOINTER * Pointer
+    );
+
+/* Pointer rename  */
+gctUINT32
+gckKERNEL_AllocateNameFromPointer(
+    IN gckKERNEL Kernel,
+    IN gctPOINTER Pointer
+    );
+
+gctPOINTER
+gckKERNEL_QueryPointerFromName(
+    IN gckKERNEL Kernel,
+    IN gctUINT32 Name
+    );
+
+gceSTATUS
+gckKERNEL_DeleteName(
+    IN gckKERNEL Kernel,
+    IN gctUINT32 Name
+    );
+
+#if gcdSECURE_USER
+/* Get secure cache from the process database. */
+gceSTATUS
+gckKERNEL_GetProcessDBCache(
+    IN gckKERNEL Kernel,
+    IN gctUINT32 ProcessID,
+    OUT gcskSECURE_CACHE_PTR * Cache
+    );
+#endif
+
+/*******************************************************************************
+********* Timer Management ****************************************************/
+typedef struct _gcsTIMER *           gcsTIMER_PTR;
+typedef struct _gcsTIMER
+{
+    /* Start and Stop time holders. */
+    gctUINT64                           startTime;
+    gctUINT64                           stopTime;
+}
+gcsTIMER;
+
+/******************************************************************************\
+********************************** Structures **********************************
+\******************************************************************************/
+
+/* gckDB object. */
+struct _gckDB
+{
+    /* Database management. */
+    gcsDATABASE_PTR             db[16];
+    gctPOINTER                  dbMutex;
+    gcsDATABASE_PTR             freeDatabase;
+    gcsDATABASE_RECORD_PTR      freeRecord;
+    gcsDATABASE_PTR             lastDatabase;
+    gctUINT32                   lastProcessID;
+    gctUINT64                   lastIdle;
+    gctUINT64                   idleTime;
+    gctUINT64                   lastSlowdown;
+    gctUINT64                   lastSlowdownIdle;
+    gctPOINTER                  nameDatabase;
+    gctPOINTER                  nameDatabaseMutex;
+
+    gctPOINTER                  pointerDatabase;
+    gctPOINTER                  pointerDatabaseMutex;
+};
+
+typedef struct _gckVIRTUAL_COMMAND_BUFFER * gckVIRTUAL_COMMAND_BUFFER_PTR;
+typedef struct _gckVIRTUAL_COMMAND_BUFFER
+{
+    gctPHYS_ADDR                physical;
+    gctPOINTER                  userLogical;
+    gctPOINTER                  kernelLogical;
+    gctSIZE_T                   bytes;
+    gctSIZE_T                   pageCount;
+    gctPOINTER                  pageTable;
+    gctUINT32                   gpuAddress;
+    gctUINT                     pid;
+    gckVIRTUAL_COMMAND_BUFFER_PTR   next;
+    gckVIRTUAL_COMMAND_BUFFER_PTR   prev;
+    gckKERNEL                   kernel;
+#if gcdPROCESS_ADDRESS_SPACE
+    gckMMU                      mmu;
+#endif
+}
+gckVIRTUAL_COMMAND_BUFFER;
+
+/* gckKERNEL object. */
+struct _gckKERNEL
+{
+    /* Object. */
+    gcsOBJECT                   object;
+
+    /* Pointer to gckOS object. */
+    gckOS                       os;
+
+    /* Core */
+    gceCORE                     core;
+
+    /* Pointer to gckHARDWARE object. */
+    gckHARDWARE                 hardware;
+
+    /* Pointer to gckCOMMAND object. */
+    gckCOMMAND                  command;
+
+    /* Pointer to gckEVENT object. */
+    gckEVENT                    eventObj;
+
+    /* Pointer to context. */
+    gctPOINTER                  context;
+
+    /* Pointer to gckMMU object. */
+    gckMMU                      mmu;
+
+    /* Arom holding number of clients. */
+    gctPOINTER                  atomClients;
+
+#if VIVANTE_PROFILER
+    /* Enable profiling */
+    gctBOOL                     profileEnable;
+    /* Clear profile register or not*/
+    gctBOOL                     profileCleanRegister;
+#endif
+
+#ifdef QNX_SINGLE_THREADED_DEBUGGING
+    gctPOINTER                  debugMutex;
+#endif
+
+    /* Database management. */
+    gckDB                       db;
+    gctBOOL                     dbCreated;
+
+    gctUINT64                   resetTimeStamp;
+
+    /* Pointer to gckEVENT object. */
+    gcsTIMER                    timers[8];
+    gctUINT32                   timeOut;
+
+
+    /* Virtual command buffer list. */
+    gckVIRTUAL_COMMAND_BUFFER_PTR virtualBufferHead;
+    gckVIRTUAL_COMMAND_BUFFER_PTR virtualBufferTail;
+    gctPOINTER                    virtualBufferLock;
+
+    /* Enable virtual command buffer. */
+    gctBOOL                     virtualCommandBuffer;
+
+#if gcdDVFS
+    gckDVFS                     dvfs;
+#endif
+
+#if gcdANDROID_NATIVE_FENCE_SYNC
+    gctHANDLE                   timeline;
+#endif
+
+    /* Enable recovery. */
+    gctBOOL                     recovery;
+
+    /* Level of dump information after stuck. */
+    gctUINT                     stuckDump;
+
+
+    /* Timer to monitor GPU stuck. */
+    gctPOINTER                  monitorTimer;
+
+    /* Flag to quit monitor timer. */
+    gctBOOL                     monitorTimerStop;
+
+    /* Monitor states. */
+    gctBOOL                     monitoring;
+    gctUINT32                   lastCommitStamp;
+    gctUINT32                   timer;
+    gctUINT32                   restoreAddress;
+    gctUINT32                   restoreMask;
+};
+
+struct _FrequencyHistory
+{
+    gctUINT32                   frequency;
+    gctUINT32                   count;
+};
+
+/* gckDVFS object. */
+struct _gckDVFS
+{
+    gckOS                       os;
+    gckHARDWARE                 hardware;
+    gctPOINTER                  timer;
+    gctUINT32                   pollingTime;
+    gctBOOL                     stop;
+    gctUINT32                   totalConfig;
+    gctUINT32                   loads[8];
+    gctUINT8                    currentScale;
+    struct _FrequencyHistory    frequencyHistory[16];
+};
+
+typedef struct _gcsFENCE * gckFENCE;
+typedef struct _gcsFENCE
+{
+    /* Fence location. */
+    gctPHYS_ADDR                physical;
+    gctPOINTER                  logical;
+    gctUINT32                   address;
+
+    gctPOINTER                  mutex;
+}
+gcsFENCE;
+
+/* gckCOMMAND object. */
+struct _gckCOMMAND
+{
+    /* Object. */
+    gcsOBJECT                   object;
+
+    /* Pointer to required object. */
+    gckKERNEL                   kernel;
+    gckOS                       os;
+
+    /* Number of bytes per page. */
+    gctUINT32                   pageSize;
+
+    /* Current pipe select. */
+    gcePIPE_SELECT              pipeSelect;
+
+    /* Command queue running flag. */
+    gctBOOL                     running;
+
+    /* Idle flag and commit stamp. */
+    gctBOOL                     idle;
+    gctUINT64                   commitStamp;
+
+    /* Command queue mutex. */
+    gctPOINTER                  mutexQueue;
+
+    /* Context switching mutex. */
+    gctPOINTER                  mutexContext;
+
+#if VIVANTE_PROFILER_CONTEXT
+    /* Context sequence mutex. */
+    gctPOINTER                  mutexContextSeq;
+#endif
+
+    /* Command queue power semaphore. */
+    gctPOINTER                  powerSemaphore;
+
+    /* Current command queue. */
+    struct _gcskCOMMAND_QUEUE
+    {
+        gctSIGNAL               signal;
+        gctPHYS_ADDR            physical;
+        gctPOINTER              logical;
+        gctUINT32               address;
+    }
+    queues[gcdCOMMAND_QUEUES];
+
+    gctUINT32                   physical;
+    gctPOINTER                  logical;
+    gctUINT32                   address;
+    gctUINT32                   offset;
+    gctINT                      index;
+#if gcmIS_DEBUG(gcdDEBUG_TRACE)
+    gctUINT                     wrapCount;
+#endif
+
+    /* The command queue is new. */
+    gctBOOL                     newQueue;
+
+    /* Context management. */
+    gckCONTEXT                  currContext;
+    gctPOINTER                  stateMap;
+
+    /* Pointer to last WAIT command. */
+    gctUINT32                   waitPhysical;
+    gctPOINTER                  waitLogical;
+    gctUINT32                   waitSize;
+
+    /* Command buffer alignment. */
+    gctUINT32                   alignment;
+    gctUINT32                   reservedHead;
+    gctUINT32                   reservedTail;
+
+    /* Commit counter. */
+    gctPOINTER                  atomCommit;
+
+    /* Kernel process ID. */
+    gctUINT32                   kernelProcessID;
+
+    /* End Event signal. */
+    gctSIGNAL                   endEventSignal;
+
+#if gcdSECURE_USER
+    /* Hint array copy buffer. */
+    gctBOOL                     hintArrayAllocated;
+    gctUINT                     hintArraySize;
+    gctUINT32_PTR               hintArray;
+#endif
+
+#if gcdPROCESS_ADDRESS_SPACE
+    gckMMU                      currentMmu;
+#endif
+    struct _gckENTRYQUEUE       queue;
+
+    gckFENCE                    fence;
+};
+
+typedef struct _gcsEVENT *      gcsEVENT_PTR;
+
+/* Structure holding one event to be processed. */
+typedef struct _gcsEVENT
+{
+    /* Pointer to next event in queue. */
+    gcsEVENT_PTR                next;
+
+    /* Event information. */
+    gcsHAL_INTERFACE            info;
+
+    /* Process ID owning the event. */
+    gctUINT32                   processID;
+
+#ifdef __QNXNTO__
+    /* Kernel. */
+    gckKERNEL                   kernel;
+#endif
+
+    gctBOOL                     fromKernel;
+}
+gcsEVENT;
+
+/* Structure holding a list of events to be processed by an interrupt. */
+typedef struct _gcsEVENT_QUEUE * gcsEVENT_QUEUE_PTR;
+typedef struct _gcsEVENT_QUEUE
+{
+    /* Time stamp. */
+    gctUINT64                   stamp;
+
+    /* Source of the event. */
+    gceKERNEL_WHERE             source;
+
+
+    /* Pointer to head of event queue. */
+    gcsEVENT_PTR                head;
+
+    /* Pointer to tail of event queue. */
+    gcsEVENT_PTR                tail;
+
+    /* Next list of events. */
+    gcsEVENT_QUEUE_PTR          next;
+
+    /* Current commit stamp. */
+    gctUINT64                   commitStamp;
+}
+gcsEVENT_QUEUE;
+
+/*
+    gcdREPO_LIST_COUNT defines the maximum number of event queues with different
+    hardware module sources that may coexist at the same time. Only two sources
+    are supported - gcvKERNEL_COMMAND and gcvKERNEL_PIXEL. gcvKERNEL_COMMAND
+    source is used only for managing the kernel command queue and is only issued
+    when the current command queue gets full. Since we commit event queues every
+    time we commit command buffers, in the worst case we can have up to three
+    pending event queues:
+        - gcvKERNEL_PIXEL
+        - gcvKERNEL_COMMAND (queue overflow)
+        - gcvKERNEL_PIXEL
+*/
+#define gcdREPO_LIST_COUNT      3
+
+/* gckEVENT object. */
+struct _gckEVENT
+{
+    /* The object. */
+    gcsOBJECT                   object;
+
+    /* Pointer to required objects. */
+    gckOS                       os;
+    gckKERNEL                   kernel;
+
+    /* Time stamp. */
+    gctUINT64                   stamp;
+    gctUINT32                   lastCommitStamp;
+
+    /* Queue mutex. */
+    gctPOINTER                  eventQueueMutex;
+
+    /* Array of event queues. */
+    gcsEVENT_QUEUE              queues[29];
+    gctUINT8                    lastID;
+    gctPOINTER                  freeAtom;
+
+    /* Pending events. */
+#if gcdSMP
+    gctPOINTER                  pending;
+#else
+    volatile gctUINT            pending;
+#endif
+
+    /* List of free event structures and its mutex. */
+    gcsEVENT_PTR                freeEventList;
+    gctSIZE_T                   freeEventCount;
+    gctPOINTER                  freeEventMutex;
+
+    /* Event queues. */
+    gcsEVENT_QUEUE_PTR          queueHead;
+    gcsEVENT_QUEUE_PTR          queueTail;
+    gcsEVENT_QUEUE_PTR          freeList;
+    gcsEVENT_QUEUE              repoList[gcdREPO_LIST_COUNT];
+    gctPOINTER                  eventListMutex;
+
+    gctPOINTER                  submitTimer;
+
+#if gcdINTERRUPT_STATISTIC
+    gctPOINTER                  interruptCount;
+#endif
+
+#if gcdRECORD_COMMAND
+    gckRECORDER                 recorder;
+#endif
+};
+
+/* Free all events belonging to a process. */
+gceSTATUS
+gckEVENT_FreeProcess(
+    IN gckEVENT Event,
+    IN gctUINT32 ProcessID
+    );
+
+gceSTATUS
+gckEVENT_Stop(
+    IN gckEVENT Event,
+    IN gctUINT32 ProcessID,
+    IN gctUINT32 Handle,
+    IN gctPOINTER Logical,
+    IN gctSIGNAL Signal,
+    IN OUT gctUINT32 * waitSize
+    );
+
+typedef struct _gcsLOCK_INFO * gcsLOCK_INFO_PTR;
+typedef struct _gcsLOCK_INFO
+{
+    gctUINT32                   GPUAddresses[gcdMAX_GPU_COUNT];
+    gctPOINTER                  pageTables[gcdMAX_GPU_COUNT];
+    gctUINT32                   lockeds[gcdMAX_GPU_COUNT];
+    gckKERNEL                   lockKernels[gcdMAX_GPU_COUNT];
+    gckMMU                      lockMmus[gcdMAX_GPU_COUNT];
+}
+gcsLOCK_INFO;
+
+typedef struct _gcsGPU_MAP * gcsGPU_MAP_PTR;
+typedef struct _gcsGPU_MAP
+{
+    gctINT                      pid;
+    gcsLOCK_INFO                lockInfo;
+    gcsGPU_MAP_PTR              prev;
+    gcsGPU_MAP_PTR              next;
+}
+gcsGPU_MAP;
+
+/* gcuVIDMEM_NODE structure. */
+typedef union _gcuVIDMEM_NODE
+{
+    /* Allocated from gckVIDMEM. */
+    struct _gcsVIDMEM_NODE_VIDMEM
+    {
+        /* Owner of this node. */
+        gckVIDMEM               memory;
+
+        /* Dual-linked list of nodes. */
+        gcuVIDMEM_NODE_PTR      next;
+        gcuVIDMEM_NODE_PTR      prev;
+
+        /* Dual linked list of free nodes. */
+        gcuVIDMEM_NODE_PTR      nextFree;
+        gcuVIDMEM_NODE_PTR      prevFree;
+
+        /* Information for this node. */
+        gctSIZE_T               offset;
+        gctSIZE_T               bytes;
+        gctUINT32               alignment;
+
+#ifdef __QNXNTO__
+        /* Client virtual address. */
+        gctPOINTER              logical;
+#endif
+
+        /* Locked counter. */
+        gctINT32                locked;
+
+        /* Memory pool. */
+        gcePOOL                 pool;
+        gctUINT32               physical;
+
+        /* Process ID owning this memory. */
+        gctUINT32               processID;
+
+    }
+    VidMem;
+
+    /* Allocated from gckOS. */
+    struct _gcsVIDMEM_NODE_VIRTUAL
+    {
+        /* Pointer to gckKERNEL object. */
+        gckKERNEL               kernel;
+
+        /* Information for this node. */
+        /* Contiguously allocated? */
+        gctBOOL                 contiguous;
+        /* mdl record pointer... a kmalloc address. Process agnostic. */
+        gctPHYS_ADDR            physical;
+        gctSIZE_T               bytes;
+        /* do_mmap_pgoff address... mapped per-process. */
+        gctPOINTER              logical;
+
+
+        /* Customer private handle */
+        gctUINT32               gid;
+
+        /* Page table information. */
+        /* Used only when node is not contiguous */
+        gctSIZE_T               pageCount;
+
+        /* Used only when node is not contiguous */
+        gctPOINTER              pageTables[gcdMAX_GPU_COUNT];
+        /* Pointer to gckKERNEL object who lock this. */
+        gckKERNEL               lockKernels[gcdMAX_GPU_COUNT];
+        /* Actual physical address */
+        gctUINT32               addresses[gcdMAX_GPU_COUNT];
+
+        /* Locked counter. */
+        gctINT32                lockeds[gcdMAX_GPU_COUNT];
+
+        /* Process ID owning this memory. */
+        gctUINT32               processID;
+
+        /* Surface type. */
+        gceSURF_TYPE            type;
+    }
+    Virtual;
+}
+gcuVIDMEM_NODE;
+
+/* gckVIDMEM object. */
+struct _gckVIDMEM
+{
+    /* Object. */
+    gcsOBJECT                   object;
+
+    /* Pointer to gckOS object. */
+    gckOS                       os;
+
+    /* Information for this video memory heap. */
+    gctUINT32                   baseAddress;
+    gctSIZE_T                   bytes;
+    gctSIZE_T                   freeBytes;
+
+    /* Mapping for each type of surface. */
+    gctINT                      mapping[gcvSURF_NUM_TYPES];
+
+    /* Sentinel nodes for up to 8 banks. */
+    gcuVIDMEM_NODE              sentinel[8];
+
+    /* Allocation threshold. */
+    gctSIZE_T                   threshold;
+
+    /* The heap mutex. */
+    gctPOINTER                  mutex;
+};
+
+typedef struct _gcsVIDMEM_NODE
+{
+    /* Pointer to gcuVIDMEM_NODE. */
+    gcuVIDMEM_NODE_PTR          node;
+
+    /* Mutex to protect node. */
+    gctPOINTER                  mutex;
+
+    /* Reference count. */
+    gctPOINTER                  reference;
+
+    /* Name for client to import. */
+    gctUINT32                   name;
+
+#if gcdPROCESS_ADDRESS_SPACE
+    /* Head of mapping list. */
+    gcsGPU_MAP_PTR              mapHead;
+
+    /* Tail of mapping list. */
+    gcsGPU_MAP_PTR              mapTail;
+
+    gctPOINTER                  mapMutex;
+#endif
+
+    /* Surface Type. */
+    gceSURF_TYPE                type;
+
+    /* Pool from which node is allocated. */
+    gcePOOL                     pool;
+}
+gcsVIDMEM_NODE;
+
+typedef struct _gcsVIDMEM_HANDLE * gckVIDMEM_HANDLE;
+typedef struct _gcsVIDMEM_HANDLE
+{
+    /* Pointer to gckVIDMEM_NODE. */
+    gckVIDMEM_NODE              node;
+
+    /* Handle for current process. */
+    gctUINT32                   handle;
+
+    /* Reference count for this handle. */
+    gctPOINTER                  reference;
+}
+gcsVIDMEM_HANDLE;
+
+typedef struct _gcsSHBUF * gcsSHBUF_PTR;
+typedef struct _gcsSHBUF
+{
+    /* ID. */
+    gctUINT32                   id;
+
+    /* Reference count. */
+    gctPOINTER                  reference;
+
+    /* Data size. */
+    gctUINT32                   size;
+
+    /* Data. */
+    gctPOINTER                  data;
+}
+gcsSHBUF;
+
+gceSTATUS
+gckVIDMEM_HANDLE_Reference(
+    IN gckKERNEL Kernel,
+    IN gctUINT32 ProcessID,
+    IN gctUINT32 Handle
+    );
+
+gceSTATUS
+gckVIDMEM_HANDLE_Dereference(
+    IN gckKERNEL Kernel,
+    IN gctUINT32 ProcessID,
+    IN gctUINT32 Handle
+    );
+
+gceSTATUS
+gckVIDMEM_NODE_Allocate(
+    IN gckKERNEL Kernel,
+    IN gcuVIDMEM_NODE_PTR VideoNode,
+    IN gceSURF_TYPE Type,
+    IN gcePOOL Pool,
+    IN gctUINT32 * Handle
+    );
+
+gceSTATUS
+gckVIDMEM_Node_Lock(
+    IN gckKERNEL Kernel,
+    IN gckVIDMEM_NODE Node,
+    OUT gctUINT32 *Address
+    );
+
+gceSTATUS
+gckVIDMEM_NODE_Unlock(
+    IN gckKERNEL Kernel,
+    IN gckVIDMEM_NODE Node,
+    IN gctUINT32 ProcessID
+    );
+
+gceSTATUS
+gckVIDMEM_NODE_Dereference(
+    IN gckKERNEL Kernel,
+    IN gckVIDMEM_NODE Node
+    );
+
+gceSTATUS
+gckVIDMEM_NODE_Name(
+    IN gckKERNEL Kernel,
+    IN gctUINT32 Handle,
+    IN gctUINT32 * Name
+    );
+
+gceSTATUS
+gckVIDMEM_NODE_Import(
+    IN gckKERNEL Kernel,
+    IN gctUINT32 Name,
+    IN gctUINT32 * Handle
+    );
+
+gceSTATUS
+gckVIDMEM_HANDLE_LookupAndReference(
+    IN gckKERNEL Kernel,
+    IN gctUINT32 Handle,
+    OUT gckVIDMEM_NODE * Node
+    );
+
+gceSTATUS
+gckVIDMEM_HANDLE_Lookup(
+    IN gckKERNEL Kernel,
+    IN gctUINT32 ProcessID,
+    IN gctUINT32 Handle,
+    OUT gckVIDMEM_NODE * Node
+    );
+
+gceSTATUS
+gckVIDMEM_NODE_GetFd(
+    IN gckKERNEL Kernel,
+    IN gctUINT32 Handle,
+    OUT gctINT * Fd
+    );
+
+gceSTATUS
+gckVIDMEM_ConstructVirtualFromUserMemory(
+    IN gckKERNEL Kernel,
+    IN gcsUSER_MEMORY_DESC_PTR Desc,
+    OUT gcuVIDMEM_NODE_PTR * Node
+    );
+
+#if gcdPROCESS_ADDRESS_SPACE
+gceSTATUS
+gckEVENT_DestroyMmu(
+    IN gckEVENT Event,
+    IN gckMMU Mmu,
+    IN gceKERNEL_WHERE FromWhere
+    );
+#endif
+
+/* gckMMU object. */
+struct _gckMMU
+{
+    /* The object. */
+    gcsOBJECT                   object;
+
+    /* Pointer to gckOS object. */
+    gckOS                       os;
+
+    /* Pointer to gckHARDWARE object. */
+    gckHARDWARE                 hardware;
+
+    /* The page table mutex. */
+    gctPOINTER                  pageTableMutex;
+
+    /* Page table information. */
+    gctSIZE_T                   pageTableSize;
+    gctPHYS_ADDR                pageTablePhysical;
+    gctUINT32_PTR               pageTableLogical;
+    gctUINT32                   pageTableEntries;
+
+    /* Master TLB information. */
+    gctSIZE_T                   mtlbSize;
+    gctPHYS_ADDR                mtlbPhysical;
+    gctUINT32_PTR               mtlbLogical;
+    gctUINT32                   mtlbEntries;
+
+    /* Free entries. */
+    gctUINT32                   heapList;
+    gctBOOL                     freeNodes;
+
+    gctPOINTER                  staticSTLB;
+    gctBOOL                     enabled;
+
+    gctUINT32                   dynamicMappingStart;
+
+    gctUINT32_PTR               mapLogical;
+#if gcdPROCESS_ADDRESS_SPACE
+    gctPOINTER                  pageTableDirty[gcdMAX_GPU_COUNT];
+    gctPOINTER                  stlbs;
+#endif
+};
+
+gceSTATUS
+gckOS_CreateKernelVirtualMapping(
+    IN gckOS Os,
+    IN gctPHYS_ADDR Physical,
+    IN gctSIZE_T Bytes,
+    OUT gctPOINTER * Logical,
+    OUT gctSIZE_T * PageCount
+    );
+
+gceSTATUS
+gckOS_DestroyKernelVirtualMapping(
+    IN gckOS Os,
+    IN gctPHYS_ADDR Physical,
+    IN gctSIZE_T Bytes,
+    IN gctPOINTER Logical
+    );
+
+gceSTATUS
+gckOS_CreateUserVirtualMapping(
+    IN gckOS Os,
+    IN gctPHYS_ADDR Physical,
+    IN gctSIZE_T Bytes,
+    OUT gctPOINTER * Logical,
+    OUT gctSIZE_T * PageCount
+    );
+
+gceSTATUS
+gckOS_DestroyUserVirtualMapping(
+    IN gckOS Os,
+    IN gctPHYS_ADDR Physical,
+    IN gctSIZE_T Bytes,
+    IN gctPOINTER Logical
+    );
+
+gceSTATUS
+gckOS_GetFd(
+    IN gctSTRING Name,
+    IN gcsFDPRIVATE_PTR Private,
+    OUT gctINT *Fd
+    );
+
+gceSTATUS
+gckKERNEL_AllocateVirtualCommandBuffer(
+    IN gckKERNEL Kernel,
+    IN gctBOOL InUserSpace,
+    IN OUT gctSIZE_T * Bytes,
+    OUT gctPHYS_ADDR * Physical,
+    OUT gctPOINTER * Logical
+    );
+
+gceSTATUS
+gckKERNEL_DestroyVirtualCommandBuffer(
+    IN gckKERNEL Kernel,
+    IN gctSIZE_T Bytes,
+    IN gctPHYS_ADDR Physical,
+    IN gctPOINTER Logical
+    );
+
+gceSTATUS
+gckKERNEL_GetGPUAddress(
+    IN gckKERNEL Kernel,
+    IN gctPOINTER Logical,
+    IN gctBOOL InUserSpace,
+    IN gckVIRTUAL_COMMAND_BUFFER_PTR Buffer,
+    OUT gctUINT32 * Address
+    );
+
+gceSTATUS
+gckKERNEL_QueryGPUAddress(
+    IN gckKERNEL Kernel,
+    IN gctUINT32 GpuAddress,
+    OUT gckVIRTUAL_COMMAND_BUFFER_PTR * Buffer
+    );
+
+gceSTATUS
+gckKERNEL_AttachProcess(
+    IN gckKERNEL Kernel,
+    IN gctBOOL Attach
+    );
+
+gceSTATUS
+gckKERNEL_AttachProcessEx(
+    IN gckKERNEL Kernel,
+    IN gctBOOL Attach,
+    IN gctUINT32 PID
+    );
+
+#if gcdSECURE_USER
+gceSTATUS
+gckKERNEL_MapLogicalToPhysical(
+    IN gckKERNEL Kernel,
+    IN gcskSECURE_CACHE_PTR Cache,
+    IN OUT gctPOINTER * Data
+    );
+
+gceSTATUS
+gckKERNEL_FlushTranslationCache(
+    IN gckKERNEL Kernel,
+    IN gcskSECURE_CACHE_PTR Cache,
+    IN gctPOINTER Logical,
+    IN gctSIZE_T Bytes
+    );
+#endif
+
+gceSTATUS
+gckHARDWARE_QueryIdle(
+    IN gckHARDWARE Hardware,
+    OUT gctBOOL_PTR IsIdle
+    );
+
+gceSTATUS
+gckHARDWARE_AddressInHardwareFuncions(
+    IN gckHARDWARE Hardware,
+    IN gctUINT32 Address,
+    OUT gctPOINTER *Pointer
+    );
+
+
+gceSTATUS
+gckKERNEL_CreateShBuffer(
+    IN gckKERNEL Kernel,
+    IN gctUINT32 Size,
+    OUT gctSHBUF * ShBuf
+    );
+
+gceSTATUS
+gckKERNEL_DestroyShBuffer(
+    IN gckKERNEL Kernel,
+    IN gctSHBUF ShBuf
+    );
+
+gceSTATUS
+gckKERNEL_MapShBuffer(
+    IN gckKERNEL Kernel,
+    IN gctSHBUF ShBuf
+    );
+
+gceSTATUS
+gckKERNEL_WriteShBuffer(
+    IN gckKERNEL Kernel,
+    IN gctSHBUF ShBuf,
+    IN gctPOINTER UserData,
+    IN gctUINT32 ByteCount
+    );
+
+gceSTATUS
+gckKERNEL_ReadShBuffer(
+    IN gckKERNEL Kernel,
+    IN gctSHBUF ShBuf,
+    IN gctPOINTER UserData,
+    IN gctUINT32 ByteCount,
+    OUT gctUINT32 * BytesRead
+    );
+
+
+/******************************************************************************\
+******************************* gckCONTEXT Object *******************************
+\******************************************************************************/
+
+gceSTATUS
+gckCONTEXT_Construct(
+    IN gckOS Os,
+    IN gckHARDWARE Hardware,
+    IN gctUINT32 ProcessID,
+    OUT gckCONTEXT * Context
+    );
+
+gceSTATUS
+gckCONTEXT_Destroy(
+    IN gckCONTEXT Context
+    );
+
+gceSTATUS
+gckCONTEXT_Update(
+    IN gckCONTEXT Context,
+    IN gctUINT32 ProcessID,
+    IN gcsSTATE_DELTA_PTR StateDelta
+    );
+
+gceSTATUS
+gckCONTEXT_MapBuffer(
+    IN gckCONTEXT Context,
+    OUT gctUINT32 *Physicals,
+    OUT gctUINT64 *Logicals,
+    OUT gctUINT32 *Bytes
+    );
+
+#if gcdLINK_QUEUE_SIZE
+void
+gckLINKQUEUE_Enqueue(
+    IN gckLINKQUEUE LinkQueue,
+    IN gctUINT32 start,
+    IN gctUINT32 end,
+    IN gctUINT32 LinkLow,
+    IN gctUINT32 LinkHigh
+    );
+
+void
+gckLINKQUEUE_GetData(
+    IN gckLINKQUEUE LinkQueue,
+    IN gctUINT32 Index,
+    OUT gckLINKDATA * Data
+    );
+#endif
+
+gceSTATUS
+gckENTRYQUEUE_Enqueue(
+    IN gckKERNEL Kernel,
+    IN gckENTRYQUEUE Queue,
+    IN gctUINT32 physical,
+    IN gctUINT32 bytes
+    );
+
+gceSTATUS
+gckENTRYQUEUE_Dequeue(
+    IN gckENTRYQUEUE Queue,
+    OUT gckENTRYDATA * Data
+    );
+
+/******************************************************************************\
+****************************** gckRECORDER Object ******************************
+\******************************************************************************/
+gceSTATUS
+gckRECORDER_Construct(
+    IN gckOS Os,
+    IN gckHARDWARE Hardware,
+    OUT gckRECORDER * Recorder
+    );
+
+gceSTATUS
+gckRECORDER_Destory(
+    IN gckOS Os,
+    IN gckRECORDER Recorder
+    );
+
+void
+gckRECORDER_AdvanceIndex(
+    gckRECORDER Recorder,
+    gctUINT64   CommitStamp
+    );
+
+void
+gckRECORDER_Record(
+    gckRECORDER Recorder,
+    gctUINT8_PTR CommandBuffer,
+    gctUINT32 CommandBytes,
+    gctUINT8_PTR ContextBuffer,
+    gctUINT32 ContextBytes
+    );
+
+void
+gckRECORDER_Dump(
+    gckRECORDER Recorder
+    );
+
+gceSTATUS
+gckRECORDER_UpdateMirror(
+    gckRECORDER Recorder,
+    gctUINT32 State,
+    gctUINT32 Data
+    );
+
+gceSTATUS
+gckFENCE_Create(
+    IN gckOS Os,
+    IN gckKERNEL Kernel,
+    OUT gckFENCE * Fence
+    );
+
+gceSTATUS
+gckFENCE_Destory(
+    IN gckOS Os,
+    OUT gckFENCE Fence
+    );
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* __gc_hal_kernel_h_ */
diff --git a/src/hal/kernel/gc_hal_kernel_command.c b/src/hal/kernel/gc_hal_kernel_command.c
new file mode 100755
index 0000000..d063400
--- /dev/null
+++ b/src/hal/kernel/gc_hal_kernel_command.c
@@ -0,0 +1,3366 @@
+/****************************************************************************
+*
+*    The MIT License (MIT)
+*
+*    Copyright (c) 2014 Vivante Corporation
+*
+*    Permission is hereby granted, free of charge, to any person obtaining a
+*    copy of this software and associated documentation files (the "Software"),
+*    to deal in the Software without restriction, including without limitation
+*    the rights to use, copy, modify, merge, publish, distribute, sublicense,
+*    and/or sell copies of the Software, and to permit persons to whom the
+*    Software is furnished to do so, subject to the following conditions:
+*
+*    The above copyright notice and this permission notice shall be included in
+*    all copies or substantial portions of the Software.
+*
+*    THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+*    IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+*    FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+*    AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+*    LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+*    FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+*    DEALINGS IN THE SOFTWARE.
+*
+*****************************************************************************
+*
+*    The GPL License (GPL)
+*
+*    Copyright (C) 2014  Vivante Corporation
+*
+*    This program is free software; you can redistribute it and/or
+*    modify it under the terms of the GNU General Public License
+*    as published by the Free Software Foundation; either version 2
+*    of the License, or (at your option) any later version.
+*
+*    This program is distributed in the hope that it will be useful,
+*    but WITHOUT ANY WARRANTY; without even the implied warranty of
+*    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+*    GNU General Public License for more details.
+*
+*    You should have received a copy of the GNU General Public License
+*    along with this program; if not, write to the Free Software Foundation,
+*    Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+*
+*****************************************************************************
+*
+*    Note: This software is released under dual MIT and GPL licenses. A
+*    recipient may use this file under the terms of either the MIT license or
+*    GPL License. If you wish to use only one license not the other, you can
+*    indicate your decision by deleting one of the above license notices in your
+*    version of this file.
+*
+*****************************************************************************/
+
+
+#include "gc_hal_kernel_precomp.h"
+#include "gc_hal_kernel_context.h"
+
+#define _GC_OBJ_ZONE            gcvZONE_COMMAND
+
+/******************************************************************************\
+********************************* Support Code *********************************
+\******************************************************************************/
+
+/*******************************************************************************
+**
+**  _NewQueue
+**
+**  Allocate a new command queue.
+**
+**  INPUT:
+**
+**      gckCOMMAND Command
+**          Pointer to an gckCOMMAND object.
+**
+**  OUTPUT:
+**
+**      gckCOMMAND Command
+**          gckCOMMAND object has been updated with a new command queue.
+*/
+static gceSTATUS
+_NewQueue(
+    IN OUT gckCOMMAND Command
+    )
+{
+    gceSTATUS status;
+    gctINT currentIndex, newIndex;
+    gctPHYS_ADDR_T physical;
+
+    gcmkHEADER_ARG("Command=0x%x", Command);
+
+    /* Switch to the next command buffer. */
+    currentIndex = Command->index;
+    newIndex     = (currentIndex + 1) % gcdCOMMAND_QUEUES;
+
+    /* Wait for availability. */
+#if gcdDUMP_COMMAND
+    gcmkPRINT("@[kernel.waitsignal]");
+#endif
+
+    gcmkONERROR(gckOS_WaitSignal(
+        Command->os,
+        Command->queues[newIndex].signal,
+        gcvINFINITE
+        ));
+
+#if gcmIS_DEBUG(gcdDEBUG_TRACE)
+    if (newIndex < currentIndex)
+    {
+        Command->wrapCount += 1;
+
+        gcmkTRACE_ZONE_N(
+            gcvLEVEL_INFO, gcvZONE_COMMAND,
+            2 * 4,
+            "%s(%d): queue array wrapped around.\n",
+            __FUNCTION__, __LINE__
+            );
+    }
+
+    gcmkTRACE_ZONE_N(
+        gcvLEVEL_INFO, gcvZONE_COMMAND,
+        3 * 4,
+        "%s(%d): total queue wrap arounds %d.\n",
+        __FUNCTION__, __LINE__, Command->wrapCount
+        );
+
+    gcmkTRACE_ZONE_N(
+        gcvLEVEL_INFO, gcvZONE_COMMAND,
+        3 * 4,
+        "%s(%d): switched to queue %d.\n",
+        __FUNCTION__, __LINE__, newIndex
+        );
+#endif
+
+    /* Update gckCOMMAND object with new command queue. */
+    Command->index    = newIndex;
+    Command->newQueue = gcvTRUE;
+    Command->logical  = Command->queues[newIndex].logical;
+    Command->address  = Command->queues[newIndex].address;
+    Command->offset   = 0;
+
+    gcmkONERROR(gckOS_GetPhysicalAddress(
+        Command->os,
+        Command->logical,
+       &physical
+        ));
+
+    gcmkSAFECASTPHYSADDRT(Command->physical, physical);
+
+    if (currentIndex != -1)
+    {
+        /* Mark the command queue as available. */
+        gcmkONERROR(gckEVENT_Signal(
+            Command->kernel->eventObj,
+            Command->queues[currentIndex].signal,
+            gcvKERNEL_COMMAND
+            ));
+    }
+
+    /* Success. */
+    gcmkFOOTER_ARG("Command->index=%d", Command->index);
+    return gcvSTATUS_OK;
+
+OnError:
+    /* Return the status. */
+    gcmkFOOTER();
+    return status;
+}
+
+static gceSTATUS
+_IncrementCommitAtom(
+    IN gckCOMMAND Command,
+    IN gctBOOL Increment
+    )
+{
+    gceSTATUS status;
+    gckHARDWARE hardware;
+    gctINT32 atomValue;
+    gctBOOL powerAcquired = gcvFALSE;
+
+    gcmkHEADER_ARG("Command=0x%x", Command);
+
+    /* Extract the gckHARDWARE and gckEVENT objects. */
+    hardware = Command->kernel->hardware;
+    gcmkVERIFY_OBJECT(hardware, gcvOBJ_HARDWARE);
+
+    /* Grab the power mutex. */
+    gcmkONERROR(gckOS_AcquireMutex(
+        Command->os, hardware->powerMutex, gcvINFINITE
+        ));
+    powerAcquired = gcvTRUE;
+
+    /* Increment the commit atom. */
+    if (Increment)
+    {
+        gcmkONERROR(gckOS_AtomIncrement(
+            Command->os, Command->atomCommit, &atomValue
+            ));
+    }
+    else
+    {
+        gcmkONERROR(gckOS_AtomDecrement(
+            Command->os, Command->atomCommit, &atomValue
+            ));
+    }
+
+    /* Release the power mutex. */
+    gcmkONERROR(gckOS_ReleaseMutex(
+        Command->os, hardware->powerMutex
+        ));
+    powerAcquired = gcvFALSE;
+
+    /* Success. */
+    gcmkFOOTER();
+    return gcvSTATUS_OK;
+
+OnError:
+    if (powerAcquired)
+    {
+        /* Release the power mutex. */
+        gcmkVERIFY_OK(gckOS_ReleaseMutex(
+            Command->os, hardware->powerMutex
+            ));
+    }
+
+    /* Return the status. */
+    gcmkFOOTER();
+    return status;
+}
+
+#if gcdSECURE_USER
+static gceSTATUS
+_ProcessHints(
+    IN gckCOMMAND Command,
+    IN gctUINT32 ProcessID,
+    IN gcoCMDBUF CommandBuffer
+    )
+{
+    gceSTATUS status = gcvSTATUS_OK;
+    gckKERNEL kernel;
+    gctBOOL needCopy = gcvFALSE;
+    gcskSECURE_CACHE_PTR cache;
+    gctUINT8_PTR commandBufferLogical;
+    gctUINT8_PTR hintedData;
+    gctUINT32_PTR hintArray;
+    gctUINT i, hintCount;
+
+    gcmkHEADER_ARG(
+        "Command=0x%08X ProcessID=%d CommandBuffer=0x%08X",
+        Command, ProcessID, CommandBuffer
+        );
+
+    /* Verify the arguments. */
+    gcmkVERIFY_OBJECT(Command, gcvOBJ_COMMAND);
+
+    /* Reset state array pointer. */
+    hintArray = gcvNULL;
+
+    /* Get the kernel object. */
+    kernel = Command->kernel;
+
+    /* Get the cache form the database. */
+    gcmkONERROR(gckKERNEL_GetProcessDBCache(kernel, ProcessID, &cache));
+
+    /* Determine the start of the command buffer. */
+    commandBufferLogical
+        = (gctUINT8_PTR) CommandBuffer->logical
+        +                CommandBuffer->startOffset;
+
+    /* Determine the number of records in the state array. */
+    hintCount = CommandBuffer->hintArrayTail - CommandBuffer->hintArray;
+
+    /* Check wehther we need to copy the structures or not. */
+    gcmkONERROR(gckOS_QueryNeedCopy(Command->os, ProcessID, &needCopy));
+
+    /* Get access to the state array. */
+    if (needCopy)
+    {
+        gctUINT copySize;
+
+        if (Command->hintArrayAllocated &&
+            (Command->hintArraySize < CommandBuffer->hintArraySize))
+        {
+            gcmkONERROR(gcmkOS_SAFE_FREE(Command->os, gcmUINT64_TO_PTR(Command->hintArray)));
+            Command->hintArraySize = gcvFALSE;
+        }
+
+        if (!Command->hintArrayAllocated)
+        {
+            gctPOINTER pointer = gcvNULL;
+
+            gcmkONERROR(gckOS_Allocate(
+                Command->os,
+                CommandBuffer->hintArraySize,
+                &pointer
+                ));
+
+            Command->hintArray          = gcmPTR_TO_UINT64(pointer);
+            Command->hintArrayAllocated = gcvTRUE;
+            Command->hintArraySize      = CommandBuffer->hintArraySize;
+        }
+
+        hintArray = gcmUINT64_TO_PTR(Command->hintArray);
+        copySize   = hintCount * gcmSIZEOF(gctUINT32);
+
+        gcmkONERROR(gckOS_CopyFromUserData(
+            Command->os,
+            hintArray,
+            gcmUINT64_TO_PTR(CommandBuffer->hintArray),
+            copySize
+            ));
+    }
+    else
+    {
+        gctPOINTER pointer = gcvNULL;
+
+        gcmkONERROR(gckOS_MapUserPointer(
+            Command->os,
+            gcmUINT64_TO_PTR(CommandBuffer->hintArray),
+            CommandBuffer->hintArraySize,
+            &pointer
+            ));
+
+        hintArray = pointer;
+    }
+
+    /* Scan through the buffer. */
+    for (i = 0; i < hintCount; i += 1)
+    {
+        /* Determine the location of the hinted data. */
+        hintedData = commandBufferLogical + hintArray[i];
+
+        /* Map handle into physical address. */
+        gcmkONERROR(gckKERNEL_MapLogicalToPhysical(
+            kernel, cache, (gctPOINTER) hintedData
+            ));
+    }
+
+OnError:
+    /* Get access to the state array. */
+    if (!needCopy && (hintArray != gcvNULL))
+    {
+        gcmkVERIFY_OK(gckOS_UnmapUserPointer(
+            Command->os,
+            gcmUINT64_TO_PTR(CommandBuffer->hintArray),
+            CommandBuffer->hintArraySize,
+            hintArray
+            ));
+    }
+
+    /* Return the status. */
+    gcmkFOOTER();
+    return status;
+}
+#endif
+
+static gceSTATUS
+_FlushMMU(
+    IN gckCOMMAND Command
+    )
+{
+    gceSTATUS status;
+    gctUINT32 oldValue;
+    gckHARDWARE hardware = Command->kernel->hardware;
+    gctBOOL pause = gcvFALSE;
+
+    gctUINT8_PTR pointer;
+    gctUINT32 eventBytes;
+    gctUINT32 endBytes;
+    gctUINT32 bufferSize;
+    gctUINT32 executeBytes;
+    gctUINT32 waitLinkBytes;
+
+    gcmkONERROR(gckOS_AtomicExchange(Command->os,
+                                     hardware->pageTableDirty,
+                                     0,
+                                     &oldValue));
+
+    if (oldValue)
+    {
+        /* Page Table is upated, flush mmu before commit. */
+        gcmkONERROR(gckHARDWARE_FlushMMU(hardware));
+
+        if ((oldValue & gcvPAGE_TABLE_DIRTY_BIT_FE)
+          && (hardware->endAfterFlushMmuCache)
+        )
+        {
+            pause = gcvTRUE;
+        }
+    }
+
+    if (pause)
+    {
+        /* Query size. */
+        gcmkONERROR(gckHARDWARE_Event(hardware, gcvNULL, 0, gcvKERNEL_PIXEL, &eventBytes));
+        gcmkONERROR(gckHARDWARE_End(hardware, gcvNULL, &endBytes));
+
+        executeBytes = eventBytes + endBytes;
+
+        gcmkONERROR(gckHARDWARE_WaitLink(
+            hardware,
+            gcvNULL,
+            Command->offset + executeBytes,
+            &waitLinkBytes,
+            gcvNULL,
+            gcvNULL
+            ));
+
+        /* Reserve space. */
+        gcmkONERROR(gckCOMMAND_Reserve(
+            Command,
+            executeBytes,
+            (gctPOINTER *)&pointer,
+            &bufferSize
+            ));
+
+        /* Append EVENT(29). */
+        gcmkONERROR(gckHARDWARE_Event(
+            hardware,
+            pointer,
+            29,
+            gcvKERNEL_PIXEL,
+            &eventBytes
+            ));
+
+        /* Append END. */
+        pointer += eventBytes;
+        gcmkONERROR(gckHARDWARE_End(hardware, pointer, &endBytes));
+
+        /* Store address to queue. */
+        gcmkONERROR(gckENTRYQUEUE_Enqueue(
+            Command->kernel,
+            &Command->queue,
+            Command->address + Command->offset + executeBytes,
+            waitLinkBytes
+            ));
+
+        gcmkONERROR(gckCOMMAND_Execute(Command, executeBytes));
+    }
+
+    return gcvSTATUS_OK;
+OnError:
+    return status;
+}
+
+static void
+_DumpBuffer(
+    IN gctPOINTER Buffer,
+    IN gctUINT32 GpuAddress,
+    IN gctSIZE_T Size
+    )
+{
+    gctSIZE_T i, line, left;
+    gctUINT32_PTR data = Buffer;
+
+    line = Size / 32;
+    left = Size % 32;
+
+    for (i = 0; i < line; i++)
+    {
+        gcmkPRINT("%08X : %08X %08X %08X %08X %08X %08X %08X %08X",
+                  GpuAddress, data[0], data[1], data[2], data[3], data[4], data[5], data[6], data[7]);
+        data += 8;
+        GpuAddress += 8 * 4;
+    }
+
+    switch(left)
+    {
+        case 28:
+            gcmkPRINT("%08X : %08X %08X %08X %08X %08X %08X %08X",
+                      GpuAddress, data[0], data[1], data[2], data[3], data[4], data[5], data[6]);
+            break;
+        case 24:
+            gcmkPRINT("%08X : %08X %08X %08X %08X %08X %08X",
+                      GpuAddress, data[0], data[1], data[2], data[3], data[4], data[5]);
+            break;
+        case 20:
+            gcmkPRINT("%08X : %08X %08X %08X %08X %08X",
+                      GpuAddress, data[0], data[1], data[2], data[3], data[4]);
+            break;
+        case 16:
+            gcmkPRINT("%08X : %08X %08X %08X %08X",
+                      GpuAddress, data[0], data[1], data[2], data[3]);
+            break;
+        case 12:
+            gcmkPRINT("%08X : %08X %08X %08X",
+                      GpuAddress, data[0], data[1], data[2]);
+            break;
+        case 8:
+            gcmkPRINT("%08X : %08X %08X",
+                      GpuAddress, data[0], data[1]);
+            break;
+        case 4:
+            gcmkPRINT("%08X : %08X",
+                      GpuAddress, data[0]);
+            break;
+        default:
+            break;
+    }
+}
+
+static void
+_DumpKernelCommandBuffer(
+    IN gckCOMMAND Command
+    )
+{
+    gctINT i;
+    gctUINT64 physical = 0;
+    gctUINT32 address;
+    gctPOINTER entry   = gcvNULL;
+
+    for (i = 0; i < gcdCOMMAND_QUEUES; i++)
+    {
+        entry = Command->queues[i].logical;
+
+        gckOS_GetPhysicalAddress(Command->os, entry, &physical);
+
+        gcmkPRINT("Kernel command buffer %d\n", i);
+
+        gcmkSAFECASTPHYSADDRT(address, physical);
+
+        _DumpBuffer(entry, address, Command->pageSize);
+    }
+}
+
+/******************************************************************************\
+****************************** gckCOMMAND API Code ******************************
+\******************************************************************************/
+
+/*******************************************************************************
+**
+**  gckCOMMAND_Construct
+**
+**  Construct a new gckCOMMAND object.
+**
+**  INPUT:
+**
+**      gckKERNEL Kernel
+**          Pointer to an gckKERNEL object.
+**
+**  OUTPUT:
+**
+**      gckCOMMAND * Command
+**          Pointer to a variable that will hold the pointer to the gckCOMMAND
+**          object.
+*/
+gceSTATUS
+gckCOMMAND_Construct(
+    IN gckKERNEL Kernel,
+    OUT gckCOMMAND * Command
+    )
+{
+    gckOS os;
+    gckCOMMAND command = gcvNULL;
+    gceSTATUS status;
+    gctINT i;
+    gctPOINTER pointer = gcvNULL;
+    gctSIZE_T pageSize;
+
+    gcmkHEADER_ARG("Kernel=0x%x", Kernel);
+
+    /* Verify the arguments. */
+    gcmkVERIFY_OBJECT(Kernel, gcvOBJ_KERNEL);
+    gcmkVERIFY_ARGUMENT(Command != gcvNULL);
+
+    /* Extract the gckOS object. */
+    os = Kernel->os;
+
+    /* Allocate the gckCOMMAND structure. */
+    gcmkONERROR(gckOS_Allocate(os, gcmSIZEOF(struct _gckCOMMAND), &pointer));
+    command = pointer;
+
+    /* Reset the entire object. */
+    gcmkONERROR(gckOS_ZeroMemory(command, gcmSIZEOF(struct _gckCOMMAND)));
+
+    /* Initialize the gckCOMMAND object.*/
+    command->object.type    = gcvOBJ_COMMAND;
+    command->kernel         = Kernel;
+    command->os             = os;
+
+    /* Get the command buffer requirements. */
+    gcmkONERROR(gckHARDWARE_QueryCommandBuffer(
+        Kernel->hardware,
+        &command->alignment,
+        &command->reservedHead,
+        &command->reservedTail
+        ));
+
+    /* Create the command queue mutex. */
+    gcmkONERROR(gckOS_CreateMutex(os, &command->mutexQueue));
+
+    /* Create the context switching mutex. */
+    gcmkONERROR(gckOS_CreateMutex(os, &command->mutexContext));
+
+#if VIVANTE_PROFILER_CONTEXT
+    /* Create the context switching mutex. */
+    gcmkONERROR(gckOS_CreateMutex(os, &command->mutexContextSeq));
+#endif
+
+    /* Create the power management semaphore. */
+    gcmkONERROR(gckOS_CreateSemaphore(os, &command->powerSemaphore));
+
+    /* Create the commit atom. */
+    gcmkONERROR(gckOS_AtomConstruct(os, &command->atomCommit));
+
+    /* Get the page size from teh OS. */
+    gcmkONERROR(gckOS_GetPageSize(os, &pageSize));
+
+    gcmkSAFECASTSIZET(command->pageSize, pageSize);
+
+    /* Get process ID. */
+    gcmkONERROR(gckOS_GetProcessID(&command->kernelProcessID));
+
+    /* Set hardware to pipe 0. */
+    command->pipeSelect = gcvPIPE_INVALID;
+
+    /* Pre-allocate the command queues. */
+    for (i = 0; i < gcdCOMMAND_QUEUES; ++i)
+    {
+        gcmkONERROR(gckOS_AllocateNonPagedMemory(
+            os,
+            gcvFALSE,
+            &pageSize,
+            &command->queues[i].physical,
+            &command->queues[i].logical
+            ));
+
+        gcmkONERROR(gckHARDWARE_ConvertLogical(
+            Kernel->hardware,
+            command->queues[i].logical,
+            gcvFALSE,
+            &command->queues[i].address
+            ));
+
+        gcmkONERROR(gckOS_CreateSignal(
+            os, gcvFALSE, &command->queues[i].signal
+            ));
+
+        gcmkONERROR(gckOS_Signal(
+            os, command->queues[i].signal, gcvTRUE
+            ));
+    }
+
+#if gcdRECORD_COMMAND
+    gcmkONERROR(gckRECORDER_Construct(os, Kernel->hardware, &command->recorder));
+#endif
+
+    gcmkONERROR(gckFENCE_Create(
+        os, Kernel, &command->fence
+        ));
+
+    /* No command queue in use yet. */
+    command->index    = -1;
+    command->logical  = gcvNULL;
+    command->newQueue = gcvFALSE;
+
+    /* Command is not yet running. */
+    command->running = gcvFALSE;
+
+    /* Command queue is idle. */
+    command->idle = gcvTRUE;
+
+    /* Commit stamp is zero. */
+    command->commitStamp = 0;
+
+    /* END event signal not created. */
+    command->endEventSignal = gcvNULL;
+
+    command->queue.front = 0;
+    command->queue.rear = 0;
+    command->queue.count = 0;
+
+    /* Return pointer to the gckCOMMAND object. */
+    *Command = command;
+
+    /* Success. */
+    gcmkFOOTER_ARG("*Command=0x%x", *Command);
+    return gcvSTATUS_OK;
+
+OnError:
+    /* Roll back. */
+    if (command != gcvNULL)
+    {
+        gcmkVERIFY_OK(gckCOMMAND_Destroy(command));
+    }
+
+    /* Return the status. */
+    gcmkFOOTER();
+    return status;
+}
+
+/*******************************************************************************
+**
+**  gckCOMMAND_Destroy
+**
+**  Destroy an gckCOMMAND object.
+**
+**  INPUT:
+**
+**      gckCOMMAND Command
+**          Pointer to an gckCOMMAND object to destroy.
+**
+**  OUTPUT:
+**
+**      Nothing.
+*/
+gceSTATUS
+gckCOMMAND_Destroy(
+    IN gckCOMMAND Command
+    )
+{
+    gctINT i;
+
+    gcmkHEADER_ARG("Command=0x%x", Command);
+
+    /* Verify the arguments. */
+    gcmkVERIFY_OBJECT(Command, gcvOBJ_COMMAND);
+
+    /* Stop the command queue. */
+    gcmkVERIFY_OK(gckCOMMAND_Stop(Command, gcvFALSE));
+
+    for (i = 0; i < gcdCOMMAND_QUEUES; ++i)
+    {
+        if (Command->queues[i].signal)
+        {
+            gcmkVERIFY_OK(gckOS_DestroySignal(
+                Command->os, Command->queues[i].signal
+                ));
+        }
+
+        if (Command->queues[i].logical)
+        {
+            gcmkVERIFY_OK(gckOS_FreeNonPagedMemory(
+                Command->os,
+                Command->pageSize,
+                Command->queues[i].physical,
+                Command->queues[i].logical
+                ));
+        }
+    }
+
+    /* END event signal. */
+    if (Command->endEventSignal != gcvNULL)
+    {
+        gcmkVERIFY_OK(gckOS_DestroySignal(
+            Command->os, Command->endEventSignal
+            ));
+    }
+
+    if (Command->mutexContext)
+    {
+        /* Delete the context switching mutex. */
+        gcmkVERIFY_OK(gckOS_DeleteMutex(Command->os, Command->mutexContext));
+    }
+
+#if VIVANTE_PROFILER_CONTEXT
+    if (Command->mutexContextSeq != gcvNULL)
+        gcmkVERIFY_OK(gckOS_DeleteMutex(Command->os, Command->mutexContextSeq));
+#endif
+
+    if (Command->mutexQueue)
+    {
+        /* Delete the command queue mutex. */
+        gcmkVERIFY_OK(gckOS_DeleteMutex(Command->os, Command->mutexQueue));
+    }
+
+    if (Command->powerSemaphore)
+    {
+        /* Destroy the power management semaphore. */
+        gcmkVERIFY_OK(gckOS_DestroySemaphore(Command->os, Command->powerSemaphore));
+    }
+
+    if (Command->atomCommit)
+    {
+        /* Destroy the commit atom. */
+        gcmkVERIFY_OK(gckOS_AtomDestroy(Command->os, Command->atomCommit));
+    }
+
+#if gcdSECURE_USER
+    /* Free state array. */
+    if (Command->hintArrayAllocated)
+    {
+        gcmkVERIFY_OK(gcmkOS_SAFE_FREE(Command->os, gcmUINT64_TO_PTR(Command->hintArray)));
+        Command->hintArrayAllocated = gcvFALSE;
+    }
+#endif
+
+#if gcdRECORD_COMMAND
+    gckRECORDER_Destory(Command->os, Command->recorder);
+#endif
+
+    if (Command->stateMap)
+    {
+        gcmkOS_SAFE_FREE(Command->os, Command->stateMap);
+    }
+
+    if (Command->fence)
+    {
+        gcmkVERIFY_OK(gckFENCE_Destory(Command->os, Command->fence));
+    }
+
+    /* Mark object as unknown. */
+    Command->object.type = gcvOBJ_UNKNOWN;
+
+    /* Free the gckCOMMAND object. */
+    gcmkVERIFY_OK(gcmkOS_SAFE_FREE(Command->os, Command));
+
+    /* Success. */
+    gcmkFOOTER_NO();
+    return gcvSTATUS_OK;
+}
+
+/*******************************************************************************
+**
+**  gckCOMMAND_EnterCommit
+**
+**  Acquire command queue synchronization objects.
+**
+**  INPUT:
+**
+**      gckCOMMAND Command
+**          Pointer to an gckCOMMAND object to destroy.
+**
+**      gctBOOL FromPower
+**          Determines whether the call originates from inside the power
+**          management or not.
+**
+**  OUTPUT:
+**
+**      Nothing.
+*/
+gceSTATUS
+gckCOMMAND_EnterCommit(
+    IN gckCOMMAND Command,
+    IN gctBOOL FromPower
+    )
+{
+    gceSTATUS status;
+    gckHARDWARE hardware;
+    gctBOOL atomIncremented = gcvFALSE;
+    gctBOOL semaAcquired = gcvFALSE;
+
+    gcmkHEADER_ARG("Command=0x%x", Command);
+
+    /* Extract the gckHARDWARE and gckEVENT objects. */
+    hardware = Command->kernel->hardware;
+    gcmkVERIFY_OBJECT(hardware, gcvOBJ_HARDWARE);
+
+    if (!FromPower)
+    {
+        /* Increment COMMIT atom to let power management know that a commit is
+        ** in progress. */
+        gcmkONERROR(_IncrementCommitAtom(Command, gcvTRUE));
+        atomIncremented = gcvTRUE;
+
+        /* Notify the system the GPU has a commit. */
+        gcmkONERROR(gckOS_Broadcast(Command->os,
+                                    hardware,
+                                    gcvBROADCAST_GPU_COMMIT));
+
+        /* Acquire the power management semaphore. */
+        gcmkONERROR(gckOS_AcquireSemaphore(Command->os,
+                                           Command->powerSemaphore));
+        semaAcquired = gcvTRUE;
+    }
+
+    /* Grab the conmmand queue mutex. */
+    gcmkONERROR(gckOS_AcquireMutex(Command->os,
+                                   Command->mutexQueue,
+                                   gcvINFINITE));
+
+    /* Success. */
+    gcmkFOOTER();
+    return gcvSTATUS_OK;
+
+OnError:
+    if (semaAcquired)
+    {
+        /* Release the power management semaphore. */
+        gcmkVERIFY_OK(gckOS_ReleaseSemaphore(
+            Command->os, Command->powerSemaphore
+            ));
+    }
+
+    if (atomIncremented)
+    {
+        /* Decrement the commit atom. */
+        gcmkVERIFY_OK(_IncrementCommitAtom(
+            Command, gcvFALSE
+            ));
+    }
+
+    /* Return the status. */
+    gcmkFOOTER();
+    return status;
+}
+
+/*******************************************************************************
+**
+**  gckCOMMAND_ExitCommit
+**
+**  Release command queue synchronization objects.
+**
+**  INPUT:
+**
+**      gckCOMMAND Command
+**          Pointer to an gckCOMMAND object to destroy.
+**
+**      gctBOOL FromPower
+**          Determines whether the call originates from inside the power
+**          management or not.
+**
+**  OUTPUT:
+**
+**      Nothing.
+*/
+gceSTATUS
+gckCOMMAND_ExitCommit(
+    IN gckCOMMAND Command,
+    IN gctBOOL FromPower
+    )
+{
+    gceSTATUS status;
+
+    gcmkHEADER_ARG("Command=0x%x", Command);
+
+    /* Release the power mutex. */
+    gcmkONERROR(gckOS_ReleaseMutex(Command->os, Command->mutexQueue));
+
+    if (!FromPower)
+    {
+        /* Release the power management semaphore. */
+        gcmkONERROR(gckOS_ReleaseSemaphore(Command->os,
+                                           Command->powerSemaphore));
+
+        /* Decrement the commit atom. */
+        gcmkONERROR(_IncrementCommitAtom(Command, gcvFALSE));
+    }
+
+    /* Success. */
+    gcmkFOOTER();
+    return gcvSTATUS_OK;
+
+OnError:
+    /* Return the status. */
+    gcmkFOOTER();
+    return status;
+}
+
+/*******************************************************************************
+**
+**  gckCOMMAND_Start
+**
+**  Start up the command queue.
+**
+**  INPUT:
+**
+**      gckCOMMAND Command
+**          Pointer to an gckCOMMAND object to start.
+**
+**  OUTPUT:
+**
+**      Nothing.
+*/
+gceSTATUS
+gckCOMMAND_Start(
+    IN gckCOMMAND Command
+    )
+{
+    gceSTATUS status;
+    gckHARDWARE hardware;
+    gctUINT32 waitOffset = 0;
+    gctUINT32 waitLinkBytes;
+
+    gcmkHEADER_ARG("Command=0x%x", Command);
+
+    /* Verify the arguments. */
+    gcmkVERIFY_OBJECT(Command, gcvOBJ_COMMAND);
+
+    if (Command->running)
+    {
+        /* Command queue already running. */
+        gcmkFOOTER_NO();
+        return gcvSTATUS_OK;
+    }
+
+    /* Extract the gckHARDWARE object. */
+    hardware = Command->kernel->hardware;
+    gcmkVERIFY_OBJECT(hardware, gcvOBJ_HARDWARE);
+
+    if (Command->logical == gcvNULL)
+    {
+        /* Start at beginning of a new queue. */
+        gcmkONERROR(_NewQueue(Command));
+    }
+
+    /* Start at beginning of page. */
+    Command->offset = 0;
+
+    /* Set abvailable number of bytes for WAIT/LINK command sequence. */
+    waitLinkBytes = Command->pageSize;
+
+    /* Append WAIT/LINK. */
+    gcmkONERROR(gckHARDWARE_WaitLink(
+        hardware,
+        Command->logical,
+        0,
+        &waitLinkBytes,
+        &waitOffset,
+        &Command->waitSize
+        ));
+
+    Command->waitLogical  = (gctUINT8_PTR) Command->logical  + waitOffset;
+    Command->waitPhysical =                Command->physical + waitOffset;
+
+#if gcdNONPAGED_MEMORY_CACHEABLE
+    /* Flush the cache for the wait/link. */
+    gcmkONERROR(gckOS_CacheClean(
+        Command->os,
+        Command->kernelProcessID,
+        gcvNULL,
+        (gctUINT32)Command->physical,
+        Command->logical,
+        waitLinkBytes
+        ));
+#endif
+
+    /* Adjust offset. */
+    Command->offset   = waitLinkBytes;
+    Command->newQueue = gcvFALSE;
+
+    /* Enable command processor. */
+    gcmkONERROR(gckHARDWARE_Execute(
+        hardware,
+        Command->address,
+        waitLinkBytes
+        ));
+
+    /* Command queue is running. */
+    Command->running = gcvTRUE;
+
+    /* Success. */
+    gcmkFOOTER_NO();
+    return gcvSTATUS_OK;
+
+OnError:
+    /* Return the status. */
+    gcmkFOOTER();
+    return status;
+}
+
+/*******************************************************************************
+**
+**  gckCOMMAND_Stop
+**
+**  Stop the command queue.
+**
+**  INPUT:
+**
+**      gckCOMMAND Command
+**          Pointer to an gckCOMMAND object to stop.
+**
+**  OUTPUT:
+**
+**      Nothing.
+*/
+gceSTATUS
+gckCOMMAND_Stop(
+    IN gckCOMMAND Command,
+    IN gctBOOL FromRecovery
+    )
+{
+    gckHARDWARE hardware;
+    gceSTATUS status;
+    gctUINT32 idle;
+
+    gcmkHEADER_ARG("Command=0x%x", Command);
+
+    /* Verify the arguments. */
+    gcmkVERIFY_OBJECT(Command, gcvOBJ_COMMAND);
+
+    if (!Command->running)
+    {
+        /* Command queue is not running. */
+        gcmkFOOTER_NO();
+        return gcvSTATUS_OK;
+    }
+
+    /* Extract the gckHARDWARE object. */
+    hardware = Command->kernel->hardware;
+    gcmkVERIFY_OBJECT(hardware, gcvOBJ_HARDWARE);
+
+    if (gckHARDWARE_IsFeatureAvailable(hardware,
+                                       gcvFEATURE_END_EVENT) == gcvSTATUS_TRUE)
+    {
+        /* Allocate the signal. */
+        if (Command->endEventSignal == gcvNULL)
+        {
+            gcmkONERROR(gckOS_CreateSignal(Command->os,
+                                           gcvTRUE,
+                                           &Command->endEventSignal));
+        }
+
+        /* Append the END EVENT command to trigger the signal. */
+        gcmkONERROR(gckEVENT_Stop(Command->kernel->eventObj,
+                                  Command->kernelProcessID,
+                                  Command->waitPhysical,
+                                  Command->waitLogical,
+                                  Command->endEventSignal,
+                                  &Command->waitSize));
+    }
+    else
+    {
+        /* Replace last WAIT with END. */
+        gcmkONERROR(gckHARDWARE_End(
+            hardware, Command->waitLogical, &Command->waitSize
+            ));
+
+
+        /* Update queue tail pointer. */
+        gcmkONERROR(gckHARDWARE_UpdateQueueTail(Command->kernel->hardware,
+                                                Command->logical,
+                                                Command->offset));
+
+#if gcdNONPAGED_MEMORY_CACHEABLE
+        /* Flush the cache for the END. */
+        gcmkONERROR(gckOS_CacheClean(
+            Command->os,
+            Command->kernelProcessID,
+            gcvNULL,
+            (gctUINT32)Command->waitPhysical,
+            Command->waitLogical,
+            Command->waitSize
+            ));
+#endif
+
+        /* Wait for idle. */
+        gcmkONERROR(gckHARDWARE_GetIdle(hardware, !FromRecovery, &idle));
+    }
+
+    /* Command queue is no longer running. */
+    Command->running = gcvFALSE;
+
+    /* Success. */
+    gcmkFOOTER_NO();
+    return gcvSTATUS_OK;
+
+OnError:
+    /* Return the status. */
+    gcmkFOOTER();
+    return status;
+}
+
+/*******************************************************************************
+**
+**  gckCOMMAND_Commit
+**
+**  Commit a command buffer to the command queue.
+**
+**  INPUT:
+**
+**      gckCOMMAND Command
+**          Pointer to a gckCOMMAND object.
+**
+**      gckCONTEXT Context
+**          Pointer to a gckCONTEXT object.
+**
+**      gcoCMDBUF CommandBuffer
+**          Pointer to a gcoCMDBUF object.
+**
+**      gcsSTATE_DELTA_PTR StateDelta
+**          Pointer to the state delta.
+**
+**      gctUINT32 ProcessID
+**          Current process ID.
+**
+**  OUTPUT:
+**
+**      Nothing.
+*/
+gceSTATUS
+gckCOMMAND_Commit(
+    IN gckCOMMAND Command,
+    IN gckCONTEXT Context,
+    IN gcoCMDBUF CommandBuffer,
+    IN gcsSTATE_DELTA_PTR StateDelta,
+    IN gcsQUEUE_PTR EventQueue,
+    IN gctUINT32 ProcessID
+    )
+{
+    gceSTATUS status;
+    gctBOOL commitEntered = gcvFALSE;
+    gctBOOL contextAcquired = gcvFALSE;
+    gckHARDWARE hardware;
+    gctBOOL needCopy = gcvFALSE;
+    gcsQUEUE_PTR eventRecord = gcvNULL;
+    gcsQUEUE _eventRecord;
+    gcsQUEUE_PTR nextEventRecord;
+    gctBOOL commandBufferMapped = gcvFALSE;
+    gcoCMDBUF commandBufferObject = gcvNULL;
+    gctBOOL stall = gcvFALSE;
+
+#if !gcdNULL_DRIVER
+    gcsCONTEXT_PTR contextBuffer;
+    struct _gcoCMDBUF _commandBufferObject;
+    gctPHYS_ADDR_T commandBufferPhysical;
+    gctUINT8_PTR commandBufferLogical = gcvNULL;
+    gctUINT32 commandBufferAddress = 0;
+    gctUINT8_PTR commandBufferLink = gcvNULL;
+    gctUINT commandBufferSize;
+    gctSIZE_T nopBytes;
+    gctUINT32 pipeBytes;
+    gctUINT32 linkBytes;
+    gctSIZE_T bytes;
+    gctUINT32 offset;
+#if gcdNONPAGED_MEMORY_CACHEABLE
+    gctPHYS_ADDR entryPhysical;
+#endif
+    gctPOINTER entryLogical;
+    gctUINT32 entryAddress;
+    gctUINT32 entryBytes;
+#if gcdNONPAGED_MEMORY_CACHEABLE
+    gctPHYS_ADDR exitPhysical;
+#endif
+    gctPOINTER exitLogical;
+    gctUINT32 exitAddress;
+    gctUINT32 exitBytes;
+    gctUINT32 waitLinkPhysical;
+    gctPOINTER waitLinkLogical;
+    gctUINT32 waitLinkAddress;
+    gctUINT32 waitLinkBytes;
+    gctUINT32 waitPhysical;
+    gctPOINTER waitLogical;
+    gctUINT32 waitOffset;
+    gctUINT32 waitSize;
+
+#ifdef __QNXNTO__
+    gctPOINTER userCommandBufferLogical       = gcvNULL;
+    gctBOOL    userCommandBufferLogicalMapped = gcvFALSE;
+    gctPOINTER userCommandBufferLink          = gcvNULL;
+    gctBOOL    userCommandBufferLinkMapped    = gcvFALSE;
+#endif
+
+#if gcdPROCESS_ADDRESS_SPACE
+    gctSIZE_T mmuConfigureBytes;
+    gctPOINTER mmuConfigureLogical = gcvNULL;
+    gctUINT32 mmuConfigureAddress;
+    gctPOINTER mmuConfigurePhysical = 0;
+    gctSIZE_T mmuConfigureWaitLinkOffset;
+    gckMMU mmu;
+    gctSIZE_T reservedBytes;
+    gctUINT32 oldValue;
+#endif
+
+#if gcdDUMP_COMMAND
+    gctPOINTER contextDumpLogical = gcvNULL;
+    gctSIZE_T contextDumpBytes = 0;
+    gctPOINTER bufferDumpLogical = gcvNULL;
+    gctSIZE_T bufferDumpBytes = 0;
+# endif
+#endif
+
+#if VIVANTE_PROFILER_CONTEXT
+    gctBOOL sequenceAcquired = gcvFALSE;
+#endif
+
+    gctPOINTER pointer = gcvNULL;
+
+
+    gctUINT32 exitLinkLow = 0, exitLinkHigh = 0;
+    gctUINT32 entryLinkLow = 0, entryLinkHigh = 0;
+    gctUINT32 commandLinkLow = 0, commandLinkHigh = 0;
+
+    gckVIRTUAL_COMMAND_BUFFER_PTR virtualCommandBuffer = gcvNULL;
+
+    gcmkHEADER_ARG(
+        "Command=0x%x CommandBuffer=0x%x ProcessID=%d",
+        Command, CommandBuffer, ProcessID
+        );
+
+    /* Verify the arguments. */
+    gcmkVERIFY_OBJECT(Command, gcvOBJ_COMMAND);
+
+    if (Command->kernel->hardware->type== gcvHARDWARE_2D)
+    {
+        /* There is no context for 2D. */
+        Context = gcvNULL;
+    }
+
+#if gcdPROCESS_ADDRESS_SPACE
+    gcmkONERROR(gckKERNEL_GetProcessMMU(Command->kernel, &mmu));
+
+    gcmkONERROR(gckOS_AtomicExchange(Command->os,
+                                     mmu->pageTableDirty[Command->kernel->core],
+                                     0,
+                                     &oldValue));
+#else
+#endif
+
+#if VIVANTE_PROFILER_CONTEXT
+    if((Command->kernel->hardware->gpuProfiler) && (Command->kernel->profileEnable))
+    {
+        /* Acquire the context sequnence mutex. */
+        gcmkONERROR(gckOS_AcquireMutex(
+            Command->os, Command->mutexContextSeq, gcvINFINITE
+            ));
+        sequenceAcquired = gcvTRUE;
+    }
+#endif
+
+    /* Acquire the command queue. */
+    gcmkONERROR(gckCOMMAND_EnterCommit(Command, gcvFALSE));
+    commitEntered = gcvTRUE;
+
+    /* Acquire the context switching mutex. */
+    gcmkONERROR(gckOS_AcquireMutex(
+        Command->os, Command->mutexContext, gcvINFINITE
+        ));
+    contextAcquired = gcvTRUE;
+
+    /* Extract the gckHARDWARE and gckEVENT objects. */
+    hardware = Command->kernel->hardware;
+
+    /* Check wehther we need to copy the structures or not. */
+    gcmkONERROR(gckOS_QueryNeedCopy(Command->os, ProcessID, &needCopy));
+
+#if gcdNULL_DRIVER
+    /* Context switch required? */
+    if ((Context != gcvNULL) && (Command->currContext != Context))
+    {
+        /* Yes, merge in the deltas. */
+        gckCONTEXT_Update(Context, ProcessID, StateDelta);
+
+        /* Update the current context. */
+        Command->currContext = Context;
+    }
+#else
+    if (needCopy)
+    {
+        commandBufferObject = &_commandBufferObject;
+
+        gcmkONERROR(gckOS_CopyFromUserData(
+            Command->os,
+            commandBufferObject,
+            CommandBuffer,
+            gcmSIZEOF(struct _gcoCMDBUF)
+            ));
+
+        gcmkVERIFY_OBJECT(commandBufferObject, gcvOBJ_COMMANDBUFFER);
+    }
+    else
+    {
+        gcmkONERROR(gckOS_MapUserPointer(
+            Command->os,
+            CommandBuffer,
+            gcmSIZEOF(struct _gcoCMDBUF),
+            &pointer
+            ));
+
+        commandBufferObject = pointer;
+
+        gcmkVERIFY_OBJECT(commandBufferObject, gcvOBJ_COMMANDBUFFER);
+        commandBufferMapped = gcvTRUE;
+    }
+
+    /* Query the size of NOP command. */
+    gcmkONERROR(gckHARDWARE_Nop(
+        hardware, gcvNULL, &nopBytes
+        ));
+
+    /* Query the size of pipe select command sequence. */
+    gcmkONERROR(gckHARDWARE_PipeSelect(
+        hardware, gcvNULL, gcvPIPE_3D, &pipeBytes
+        ));
+
+    /* Query the size of LINK command. */
+    gcmkONERROR(gckHARDWARE_Link(
+        hardware, gcvNULL, 0, 0, &linkBytes, gcvNULL, gcvNULL
+        ));
+
+
+    /* Compute the command buffer entry and the size. */
+    commandBufferLogical
+        = (gctUINT8_PTR) gcmUINT64_TO_PTR(commandBufferObject->logical)
+        +                commandBufferObject->startOffset;
+
+    /* Get the hardware address. */
+    if (Command->kernel->virtualCommandBuffer)
+    {
+        gckKERNEL kernel = Command->kernel;
+
+        virtualCommandBuffer = gcmNAME_TO_PTR(commandBufferObject->physical);
+
+        if (virtualCommandBuffer == gcvNULL)
+        {
+            gcmkONERROR(gcvSTATUS_INVALID_ARGUMENT);
+        }
+
+        gcmkONERROR(gckKERNEL_GetGPUAddress(
+            Command->kernel,
+            commandBufferLogical,
+            gcvTRUE,
+            virtualCommandBuffer,
+            &commandBufferAddress
+            ));
+    }
+    else
+    {
+        gcmkONERROR(gckHARDWARE_ConvertLogical(
+            hardware,
+            commandBufferLogical,
+            gcvTRUE,
+            &commandBufferAddress
+            ));
+    }
+
+    /* Get the physical address. */
+    gcmkONERROR(gckOS_UserLogicalToPhysical(
+        Command->os,
+        commandBufferLogical,
+        &commandBufferPhysical
+        ));
+
+#ifdef __QNXNTO__
+    userCommandBufferLogical = (gctPOINTER) commandBufferLogical;
+
+    gcmkONERROR(gckOS_MapUserPointer(
+        Command->os,
+        userCommandBufferLogical,
+        0,
+        &pointer));
+
+    commandBufferLogical = pointer;
+
+    userCommandBufferLogicalMapped = gcvTRUE;
+#endif
+
+    commandBufferSize
+        = commandBufferObject->offset
+        + Command->reservedTail
+        - commandBufferObject->startOffset;
+
+    gcmkONERROR(_FlushMMU(Command));
+
+    /* Get the current offset. */
+    offset = Command->offset;
+
+    /* Compute number of bytes left in current kernel command queue. */
+    bytes = Command->pageSize - offset;
+
+
+    /* Query the size of WAIT/LINK command sequence. */
+    gcmkONERROR(gckHARDWARE_WaitLink(
+        hardware,
+        gcvNULL,
+        offset,
+        &waitLinkBytes,
+        gcvNULL,
+        gcvNULL
+        ));
+
+    /* Is there enough space in the current command queue? */
+    if (bytes < waitLinkBytes)
+    {
+        /* No, create a new one. */
+        gcmkONERROR(_NewQueue(Command));
+
+        /* Get the new current offset. */
+        offset = Command->offset;
+
+        /* Recompute the number of bytes in the new kernel command queue. */
+        bytes = Command->pageSize - offset;
+        gcmkASSERT(bytes >= waitLinkBytes);
+    }
+
+    /* Compute the location if WAIT/LINK command sequence. */
+    waitLinkPhysical =                Command->physical + offset;
+    waitLinkLogical  = (gctUINT8_PTR) Command->logical  + offset;
+    waitLinkAddress  =                Command->address  + offset;
+
+    /* Context switch required? */
+    if (Context == gcvNULL)
+    {
+        /* See if we have to switch pipes for the command buffer. */
+        if (commandBufferObject->entryPipe == Command->pipeSelect)
+        {
+            /* Skip pipe switching sequence. */
+            offset = pipeBytes;
+        }
+        else
+        {
+            /* The current hardware and the entry command buffer pipes
+            ** are different, switch to the correct pipe. */
+            gcmkONERROR(gckHARDWARE_PipeSelect(
+                Command->kernel->hardware,
+                commandBufferLogical,
+                commandBufferObject->entryPipe,
+                &pipeBytes
+                ));
+
+            /* Do not skip pipe switching sequence. */
+            offset = 0;
+        }
+
+        /* Compute the entry. */
+#if gcdNONPAGED_MEMORY_CACHEABLE
+        entryPhysical = (gctUINT8_PTR) commandBufferPhysical + offset;
+#endif
+        entryLogical  =                commandBufferLogical  + offset;
+        entryAddress  =                commandBufferAddress  + offset;
+        entryBytes    =                commandBufferSize     - offset;
+
+        Command->currContext = gcvNULL;
+    }
+    else if (Command->currContext != Context)
+    {
+        /* Temporary disable context length oprimization. */
+        Context->dirty = gcvTRUE;
+
+        /* Get the current context buffer. */
+        contextBuffer = Context->buffer;
+
+        /* Yes, merge in the deltas. */
+        gcmkONERROR(gckCONTEXT_Update(Context, ProcessID, StateDelta));
+
+        /* Determine context entry and exit points. */
+        if (0)
+        {
+            /* Reset 2D dirty flag. */
+            Context->dirty2D = gcvFALSE;
+
+            if (Context->dirty || commandBufferObject->using3D)
+            {
+                /***************************************************************
+                ** SWITCHING CONTEXT: 2D and 3D are used.
+                */
+
+                /* Reset 3D dirty flag. */
+                Context->dirty3D = gcvFALSE;
+
+                /* Compute the entry. */
+                if (Command->pipeSelect == gcvPIPE_2D)
+                {
+#if gcdNONPAGED_MEMORY_CACHEABLE
+                    entryPhysical = (gctUINT8_PTR) contextBuffer->physical + pipeBytes;
+#endif
+                    entryLogical  = (gctUINT8_PTR) contextBuffer->logical  + pipeBytes;
+                    entryAddress  =                contextBuffer->address  + pipeBytes;
+                    entryBytes    =                Context->bufferSize     - pipeBytes;
+                }
+                else
+                {
+#if gcdNONPAGED_MEMORY_CACHEABLE
+                    entryPhysical = (gctUINT8_PTR) contextBuffer->physical;
+#endif
+                    entryLogical  = (gctUINT8_PTR) contextBuffer->logical;
+                    entryAddress  =                contextBuffer->address;
+                    entryBytes    =                Context->bufferSize;
+                }
+
+                /* See if we have to switch pipes between the context
+                   and command buffers. */
+                if (commandBufferObject->entryPipe == gcvPIPE_3D)
+                {
+                    /* Skip pipe switching sequence. */
+                    offset = pipeBytes;
+                }
+                else
+                {
+                    /* The current hardware and the initial context pipes are
+                       different, switch to the correct pipe. */
+                    gcmkONERROR(gckHARDWARE_PipeSelect(
+                        Command->kernel->hardware,
+                        commandBufferLogical,
+                        commandBufferObject->entryPipe,
+                        &pipeBytes
+                        ));
+
+                    /* Do not skip pipe switching sequence. */
+                    offset = 0;
+                }
+
+                /* Ensure the NOP between 2D and 3D is in place so that the
+                   execution falls through from 2D to 3D. */
+                gcmkONERROR(gckHARDWARE_Nop(
+                    hardware,
+                    contextBuffer->link2D,
+                    &nopBytes
+                    ));
+
+                /* Generate a LINK from the context buffer to
+                   the command buffer. */
+                gcmkONERROR(gckHARDWARE_Link(
+                    hardware,
+                    contextBuffer->link3D,
+                    commandBufferAddress + offset,
+                    commandBufferSize    - offset,
+                    &linkBytes,
+                    &commandLinkLow,
+                    &commandLinkHigh
+                    ));
+
+                /* Mark context as not dirty. */
+                Context->dirty = gcvFALSE;
+            }
+            else
+            {
+                /***************************************************************
+                ** SWITCHING CONTEXT: 2D only command buffer.
+                */
+
+                /* Mark 3D as dirty. */
+                Context->dirty3D = gcvTRUE;
+
+                /* Compute the entry. */
+                if (Command->pipeSelect == gcvPIPE_2D)
+                {
+#if gcdNONPAGED_MEMORY_CACHEABLE
+                    entryPhysical = (gctUINT8_PTR) contextBuffer->physical + pipeBytes;
+#endif
+                    entryLogical  = (gctUINT8_PTR) contextBuffer->logical  + pipeBytes;
+                    entryAddress  =                contextBuffer->address  + pipeBytes;
+                    entryBytes    =                Context->entryOffset3D  - pipeBytes;
+                }
+                else
+                {
+#if gcdNONPAGED_MEMORY_CACHEABLE
+                    entryPhysical = (gctUINT8_PTR) contextBuffer->physical;
+#endif
+                    entryLogical  = (gctUINT8_PTR) contextBuffer->logical;
+                    entryAddress  =                contextBuffer->address;
+                    entryBytes    =                Context->entryOffset3D;
+                }
+
+                /* Store the current context buffer. */
+                Context->dirtyBuffer = contextBuffer;
+
+                /* See if we have to switch pipes between the context
+                   and command buffers. */
+                if (commandBufferObject->entryPipe == gcvPIPE_2D)
+                {
+                    /* Skip pipe switching sequence. */
+                    offset = pipeBytes;
+                }
+                else
+                {
+                    /* The current hardware and the initial context pipes are
+                       different, switch to the correct pipe. */
+                    gcmkONERROR(gckHARDWARE_PipeSelect(
+                        Command->kernel->hardware,
+                        commandBufferLogical,
+                        commandBufferObject->entryPipe,
+                        &pipeBytes
+                        ));
+
+                    /* Do not skip pipe switching sequence. */
+                    offset = 0;
+                }
+
+                /* 3D is not used, generate a LINK from the end of 2D part of
+                   the context buffer to the command buffer. */
+                gcmkONERROR(gckHARDWARE_Link(
+                    hardware,
+                    contextBuffer->link2D,
+                    commandBufferAddress + offset,
+                    commandBufferSize    - offset,
+                    &linkBytes,
+                    &commandLinkLow,
+                    &commandLinkHigh
+                    ));
+            }
+        }
+
+        /* Not using 2D. */
+        else
+        {
+
+            /* Store the current context buffer. */
+            Context->dirtyBuffer = contextBuffer;
+
+            if (Context->dirty || commandBufferObject->using3D)
+            {
+                /***************************************************************
+                ** SWITCHING CONTEXT: 3D only command buffer.
+                */
+
+                /* Reset 3D dirty flag. */
+                Context->dirty3D = gcvFALSE;
+
+                /* Determine context buffer entry offset. */
+                offset = (Command->pipeSelect == gcvPIPE_3D)
+
+                    /* Skip pipe switching sequence. */
+                    ? Context->entryOffset3D + Context->pipeSelectBytes
+
+                    /* Do not skip pipe switching sequence. */
+                    : Context->entryOffset3D;
+
+                /* Compute the entry. */
+#if gcdNONPAGED_MEMORY_CACHEABLE
+                entryPhysical = (gctUINT8_PTR) contextBuffer->physical + offset;
+#endif
+                entryLogical  = (gctUINT8_PTR) contextBuffer->logical  + offset;
+                entryAddress  =                contextBuffer->address  + offset;
+                entryBytes    =                Context->bufferSize     - offset;
+
+                /* See if we have to switch pipes between the context
+                   and command buffers. */
+                if (commandBufferObject->entryPipe == gcvPIPE_3D)
+                {
+                    /* Skip pipe switching sequence. */
+                    offset = pipeBytes;
+                }
+                else
+                {
+                    /* The current hardware and the initial context pipes are
+                       different, switch to the correct pipe. */
+                    gcmkONERROR(gckHARDWARE_PipeSelect(
+                        Command->kernel->hardware,
+                        commandBufferLogical,
+                        commandBufferObject->entryPipe,
+                        &pipeBytes
+                        ));
+
+                    /* Do not skip pipe switching sequence. */
+                    offset = 0;
+                }
+
+                /* Generate a LINK from the context buffer to
+                   the command buffer. */
+                gcmkONERROR(gckHARDWARE_Link(
+                    hardware,
+                    contextBuffer->link3D,
+                    commandBufferAddress + offset,
+                    commandBufferSize    - offset,
+                    &linkBytes,
+                    &commandLinkLow,
+                    &commandLinkHigh
+                    ));
+            }
+            else
+            {
+                /***************************************************************
+                ** SWITCHING CONTEXT: "XD" command buffer - neither 2D nor 3D.
+                */
+
+                /* Mark 3D as dirty. */
+                Context->dirty3D = gcvTRUE;
+
+                /* Compute the entry. */
+                if (Command->pipeSelect == gcvPIPE_3D)
+                {
+#if gcdNONPAGED_MEMORY_CACHEABLE
+                    entryPhysical
+                        = (gctUINT8_PTR) contextBuffer->physical
+                        + Context->entryOffsetXDFrom3D;
+#endif
+                    entryLogical
+                        = (gctUINT8_PTR) contextBuffer->logical
+                        + Context->entryOffsetXDFrom3D;
+
+                    entryAddress
+                        = contextBuffer->address
+                        + Context->entryOffsetXDFrom3D;
+
+                    entryBytes
+                        = Context->bufferSize
+                        - Context->entryOffsetXDFrom3D;
+                }
+                else
+                {
+#if gcdNONPAGED_MEMORY_CACHEABLE
+                    entryPhysical
+                        = (gctUINT8_PTR) contextBuffer->physical
+                        + Context->entryOffsetXDFrom2D;
+#endif
+                    entryLogical
+                        = (gctUINT8_PTR) contextBuffer->logical
+                        + Context->entryOffsetXDFrom2D;
+
+                    entryAddress
+                        = contextBuffer->address
+                        + Context->entryOffsetXDFrom2D;
+
+                    entryBytes
+                        = Context->totalSize
+                        - Context->entryOffsetXDFrom2D;
+                }
+
+                /* See if we have to switch pipes between the context
+                   and command buffers. */
+                if (commandBufferObject->entryPipe == gcvPIPE_3D)
+                {
+                    /* Skip pipe switching sequence. */
+                    offset = pipeBytes;
+                }
+                else
+                {
+                    /* The current hardware and the initial context pipes are
+                       different, switch to the correct pipe. */
+                    gcmkONERROR(gckHARDWARE_PipeSelect(
+                        Command->kernel->hardware,
+                        commandBufferLogical,
+                        commandBufferObject->entryPipe,
+                        &pipeBytes
+                        ));
+
+                    /* Do not skip pipe switching sequence. */
+                    offset = 0;
+                }
+
+                /* Generate a LINK from the context buffer to
+                   the command buffer. */
+                gcmkONERROR(gckHARDWARE_Link(
+                    hardware,
+                    contextBuffer->link3D,
+                    commandBufferAddress + offset,
+                    commandBufferSize    - offset,
+                    &linkBytes,
+                    &commandLinkLow,
+                    &commandLinkHigh
+                    ));
+            }
+        }
+
+#if gcdNONPAGED_MEMORY_CACHEABLE
+        /* Flush the context buffer cache. */
+        gcmkONERROR(gckOS_CacheClean(
+            Command->os,
+            Command->kernelProcessID,
+            gcvNULL,
+            (gctUINT32)entryPhysical,
+            entryLogical,
+            entryBytes
+            ));
+#endif
+
+        /* Update the current context. */
+        Command->currContext = Context;
+
+#if gcdDUMP_COMMAND
+        contextDumpLogical = entryLogical;
+        contextDumpBytes   = entryBytes;
+#endif
+
+
+#if gcdRECORD_COMMAND
+        gckRECORDER_Record(
+            Command->recorder,
+            gcvNULL,
+            0xFFFFFFFF,
+            entryLogical,
+            entryBytes - 8
+            );
+#endif
+    }
+
+    /* Same context. */
+    else
+    {
+        /* Determine context entry and exit points. */
+        if (commandBufferObject->using2D && Context->dirty2D)
+        {
+            /* Reset 2D dirty flag. */
+            Context->dirty2D = gcvFALSE;
+
+            /* Get the "dirty" context buffer. */
+            contextBuffer = Context->dirtyBuffer;
+
+            if (commandBufferObject->using3D && Context->dirty3D)
+            {
+                /* Reset 3D dirty flag. */
+                Context->dirty3D = gcvFALSE;
+
+                /* Compute the entry. */
+                if (Command->pipeSelect == gcvPIPE_2D)
+                {
+#if gcdNONPAGED_MEMORY_CACHEABLE
+                    entryPhysical = (gctUINT8_PTR) contextBuffer->physical + pipeBytes;
+#endif
+                    entryLogical  = (gctUINT8_PTR) contextBuffer->logical  + pipeBytes;
+                    entryAddress  =                contextBuffer->address  + pipeBytes;
+                    entryBytes    =                Context->bufferSize     - pipeBytes;
+                }
+                else
+                {
+#if gcdNONPAGED_MEMORY_CACHEABLE
+                    entryPhysical = (gctUINT8_PTR) contextBuffer->physical;
+#endif
+                    entryLogical  = (gctUINT8_PTR) contextBuffer->logical;
+                    entryAddress  =                contextBuffer->address;
+                    entryBytes    =                Context->bufferSize;
+                }
+
+                /* See if we have to switch pipes between the context
+                   and command buffers. */
+                if (commandBufferObject->entryPipe == gcvPIPE_3D)
+                {
+                    /* Skip pipe switching sequence. */
+                    offset = pipeBytes;
+                }
+                else
+                {
+                    /* The current hardware and the initial context pipes are
+                       different, switch to the correct pipe. */
+                    gcmkONERROR(gckHARDWARE_PipeSelect(
+                        Command->kernel->hardware,
+                        commandBufferLogical,
+                        commandBufferObject->entryPipe,
+                        &pipeBytes
+                        ));
+
+                    /* Do not skip pipe switching sequence. */
+                    offset = 0;
+                }
+
+                /* Ensure the NOP between 2D and 3D is in place so that the
+                   execution falls through from 2D to 3D. */
+                gcmkONERROR(gckHARDWARE_Nop(
+                    hardware,
+                    contextBuffer->link2D,
+                    &nopBytes
+                    ));
+
+                /* Generate a LINK from the context buffer to
+                   the command buffer. */
+                gcmkONERROR(gckHARDWARE_Link(
+                    hardware,
+                    contextBuffer->link3D,
+                    commandBufferAddress + offset,
+                    commandBufferSize    - offset,
+                    &linkBytes,
+                    &commandLinkLow,
+                    &commandLinkHigh
+                    ));
+            }
+            else
+            {
+                /* Compute the entry. */
+                if (Command->pipeSelect == gcvPIPE_2D)
+                {
+#if gcdNONPAGED_MEMORY_CACHEABLE
+                    entryPhysical = (gctUINT8_PTR) contextBuffer->physical + pipeBytes;
+#endif
+                    entryLogical  = (gctUINT8_PTR) contextBuffer->logical  + pipeBytes;
+                    entryAddress  =                contextBuffer->address  + pipeBytes;
+                    entryBytes    =                Context->entryOffset3D  - pipeBytes;
+                }
+                else
+                {
+#if gcdNONPAGED_MEMORY_CACHEABLE
+                    entryPhysical = (gctUINT8_PTR) contextBuffer->physical;
+#endif
+                    entryLogical  = (gctUINT8_PTR) contextBuffer->logical;
+                    entryAddress  =                contextBuffer->address;
+                    entryBytes    =                Context->entryOffset3D;
+                }
+
+                /* See if we have to switch pipes between the context
+                   and command buffers. */
+                if (commandBufferObject->entryPipe == gcvPIPE_2D)
+                {
+                    /* Skip pipe switching sequence. */
+                    offset = pipeBytes;
+                }
+                else
+                {
+                    /* The current hardware and the initial context pipes are
+                       different, switch to the correct pipe. */
+                    gcmkONERROR(gckHARDWARE_PipeSelect(
+                        Command->kernel->hardware,
+                        commandBufferLogical,
+                        commandBufferObject->entryPipe,
+                        &pipeBytes
+                        ));
+
+                    /* Do not skip pipe switching sequence. */
+                    offset = 0;
+                }
+
+                /* 3D is not used, generate a LINK from the end of 2D part of
+                   the context buffer to the command buffer. */
+                gcmkONERROR(gckHARDWARE_Link(
+                    hardware,
+                    contextBuffer->link2D,
+                    commandBufferAddress + offset,
+                    commandBufferSize    - offset,
+                    &linkBytes,
+                    &commandLinkLow,
+                    &commandLinkHigh
+                    ));
+            }
+        }
+        else
+        {
+            if (commandBufferObject->using3D && Context->dirty3D)
+            {
+                /* Reset 3D dirty flag. */
+                Context->dirty3D = gcvFALSE;
+
+                /* Get the "dirty" context buffer. */
+                contextBuffer = Context->dirtyBuffer;
+
+                /* Determine context buffer entry offset. */
+                offset = (Command->pipeSelect == gcvPIPE_3D)
+
+                    /* Skip pipe switching sequence. */
+                    ? Context->entryOffset3D + pipeBytes
+
+                    /* Do not skip pipe switching sequence. */
+                    : Context->entryOffset3D;
+
+                /* Compute the entry. */
+#if gcdNONPAGED_MEMORY_CACHEABLE
+                entryPhysical = (gctUINT8_PTR) contextBuffer->physical + offset;
+#endif
+                entryLogical  = (gctUINT8_PTR) contextBuffer->logical  + offset;
+                entryAddress  =                contextBuffer->address  + offset;
+                entryBytes    =                Context->bufferSize     - offset;
+
+                /* See if we have to switch pipes between the context
+                   and command buffers. */
+                if (commandBufferObject->entryPipe == gcvPIPE_3D)
+                {
+                    /* Skip pipe switching sequence. */
+                    offset = pipeBytes;
+                }
+                else
+                {
+                    /* The current hardware and the initial context pipes are
+                       different, switch to the correct pipe. */
+                    gcmkONERROR(gckHARDWARE_PipeSelect(
+                        Command->kernel->hardware,
+                        commandBufferLogical,
+                        commandBufferObject->entryPipe,
+                        &pipeBytes
+                        ));
+
+                    /* Do not skip pipe switching sequence. */
+                    offset = 0;
+                }
+
+                /* Generate a LINK from the context buffer to
+                   the command buffer. */
+                gcmkONERROR(gckHARDWARE_Link(
+                    hardware,
+                    contextBuffer->link3D,
+                    commandBufferAddress + offset,
+                    commandBufferSize    - offset,
+                    &linkBytes,
+                    &commandLinkLow,
+                    &commandLinkHigh
+                    ));
+            }
+            else
+            {
+                /* See if we have to switch pipes for the command buffer. */
+                if (commandBufferObject->entryPipe == Command->pipeSelect)
+                {
+                    /* Skip pipe switching sequence. */
+                    offset = pipeBytes;
+                }
+                else
+                {
+                    /* The current hardware and the entry command buffer pipes
+                    ** are different, switch to the correct pipe. */
+                    gcmkONERROR(gckHARDWARE_PipeSelect(
+                        Command->kernel->hardware,
+                        commandBufferLogical,
+                        commandBufferObject->entryPipe,
+                        &pipeBytes
+                        ));
+
+                    /* Do not skip pipe switching sequence. */
+                    offset = 0;
+                }
+
+                /* Compute the entry. */
+#if gcdNONPAGED_MEMORY_CACHEABLE
+                entryPhysical = (gctUINT8_PTR) commandBufferPhysical + offset;
+#endif
+                entryLogical  =                commandBufferLogical  + offset;
+                entryAddress  =                commandBufferAddress  + offset;
+                entryBytes    =                commandBufferSize     - offset;
+            }
+        }
+    }
+
+#if gcdDUMP_COMMAND
+    bufferDumpLogical = commandBufferLogical + offset;
+    bufferDumpBytes   = commandBufferSize    - offset;
+#endif
+
+#if gcdSECURE_USER
+    /* Process user hints. */
+    gcmkONERROR(_ProcessHints(Command, ProcessID, commandBufferObject));
+#endif
+
+    /* Determine the location to jump to for the command buffer being
+    ** scheduled. */
+    if (Command->newQueue)
+    {
+        /* New command queue, jump to the beginning of it. */
+#if gcdNONPAGED_MEMORY_CACHEABLE
+        exitPhysical = Command->physical;
+#endif
+
+        exitLogical  = Command->logical;
+        exitAddress  = Command->address;
+        exitBytes    = Command->offset + waitLinkBytes;
+    }
+    else
+    {
+        /* Still within the preexisting command queue, jump to the new
+           WAIT/LINK command sequence. */
+#if gcdNONPAGED_MEMORY_CACHEABLE
+        exitPhysical = waitLinkPhysical;
+#endif
+        exitLogical  = waitLinkLogical;
+        exitAddress  = waitLinkAddress;
+        exitBytes    = waitLinkBytes;
+    }
+
+    /* Add a new WAIT/LINK command sequence. When the command buffer which is
+       currently being scheduled is fully executed by the GPU, the FE will
+       jump to this WAIT/LINK sequence. */
+    gcmkONERROR(gckHARDWARE_WaitLink(
+        hardware,
+        waitLinkLogical,
+        offset,
+        &waitLinkBytes,
+        &waitOffset,
+        &waitSize
+        ));
+
+    /* Compute the location if WAIT command. */
+    waitPhysical =                waitLinkPhysical + waitOffset;
+    waitLogical  = (gctUINT8_PTR) waitLinkLogical  + waitOffset;
+
+#if gcdNONPAGED_MEMORY_CACHEABLE
+    /* Flush the command queue cache. */
+    gcmkONERROR(gckOS_CacheClean(
+        Command->os,
+        Command->kernelProcessID,
+        gcvNULL,
+        (gctUINT32)exitPhysical,
+        exitLogical,
+        exitBytes
+        ));
+#endif
+
+    /* Determine the location of the LINK command in the command buffer. */
+    commandBufferLink
+        = (gctUINT8_PTR) gcmUINT64_TO_PTR(commandBufferObject->logical)
+        +                commandBufferObject->offset;
+
+#ifdef __QNXNTO__
+    userCommandBufferLink = (gctPOINTER) commandBufferLink;
+
+    gcmkONERROR(gckOS_MapUserPointer(
+        Command->os,
+        userCommandBufferLink,
+        0,
+        &pointer));
+
+    commandBufferLink = pointer;
+
+    userCommandBufferLinkMapped = gcvTRUE;
+#endif
+
+
+    /* Generate a LINK from the end of the command buffer being scheduled
+       back to the kernel command queue. */
+    gcmkONERROR(gckHARDWARE_Link(
+        hardware,
+        commandBufferLink,
+        exitAddress,
+        exitBytes,
+        &linkBytes,
+        &exitLinkLow,
+        &exitLinkHigh
+        ));
+
+#ifdef __QNXNTO__
+    gcmkONERROR(gckOS_UnmapUserPointer(
+        Command->os,
+        userCommandBufferLink,
+        0,
+        commandBufferLink));
+
+    userCommandBufferLinkMapped = gcvFALSE;
+#endif
+
+#if gcdNONPAGED_MEMORY_CACHEABLE
+    /* Flush the command buffer cache. */
+    gcmkONERROR(gckOS_CacheClean(
+        Command->os,
+        ProcessID,
+        gcvNULL,
+        (gctUINT32)commandBufferPhysical,
+        commandBufferLogical,
+        commandBufferSize
+        ));
+#endif
+
+#if gcdRECORD_COMMAND
+    gckRECORDER_Record(
+        Command->recorder,
+        commandBufferLogical + offset,
+        commandBufferSize - offset - 8,
+        gcvNULL,
+        0xFFFFFFFF
+        );
+
+    gckRECORDER_AdvanceIndex(Command->recorder, Command->commitStamp);
+#endif
+
+    /* Generate a LINK from the previous WAIT/LINK command sequence to the
+       entry determined above (either the context or the command buffer).
+       This LINK replaces the WAIT instruction from the previous WAIT/LINK
+       pair, therefore we use WAIT metrics for generation of this LINK.
+       This action will execute the entire sequence. */
+    gcmkONERROR(gckHARDWARE_Link(
+        hardware,
+        Command->waitLogical,
+        entryAddress,
+        entryBytes,
+        &Command->waitSize,
+        &entryLinkLow,
+        &entryLinkHigh
+        ));
+
+#if gcdLINK_QUEUE_SIZE
+    if (Command->kernel->stuckDump >= gcvSTUCK_DUMP_USER_COMMAND)
+    {
+        gckLINKQUEUE_Enqueue(
+            &hardware->linkQueue,
+            entryAddress,
+            entryAddress + entryBytes,
+            entryLinkLow,
+            entryLinkHigh
+            );
+
+        if (commandBufferAddress + offset != entryAddress)
+        {
+            gckLINKQUEUE_Enqueue(
+                &hardware->linkQueue,
+                commandBufferAddress + offset,
+                commandBufferAddress + commandBufferSize,
+                commandLinkLow,
+                commandLinkHigh
+                );
+        }
+
+        if (Command->kernel->stuckDump >= gcvSTUCK_DUMP_ALL_COMMAND)
+        {
+            /* Dump kernel command.*/
+            gckLINKQUEUE_Enqueue(
+                &hardware->linkQueue,
+                exitAddress,
+                exitAddress + exitBytes,
+                exitLinkLow,
+                exitLinkHigh
+                );
+        }
+    }
+#endif
+
+#if gcdNONPAGED_MEMORY_CACHEABLE
+    /* Flush the cache for the link. */
+    gcmkONERROR(gckOS_CacheClean(
+        Command->os,
+        Command->kernelProcessID,
+        gcvNULL,
+        (gctUINT32)Command->waitPhysical,
+        Command->waitLogical,
+        Command->waitSize
+        ));
+#endif
+
+    gcmkDUMPCOMMAND(
+        Command->os,
+        Command->waitLogical,
+        Command->waitSize,
+        gceDUMP_BUFFER_LINK,
+        gcvFALSE
+        );
+
+    gcmkDUMPCOMMAND(
+        Command->os,
+        contextDumpLogical,
+        contextDumpBytes,
+        gceDUMP_BUFFER_CONTEXT,
+        gcvFALSE
+        );
+
+    gcmkDUMPCOMMAND(
+        Command->os,
+        bufferDumpLogical,
+        bufferDumpBytes,
+        gceDUMP_BUFFER_USER,
+        gcvFALSE
+        );
+
+    gcmkDUMPCOMMAND(
+        Command->os,
+        waitLinkLogical,
+        waitLinkBytes,
+        gceDUMP_BUFFER_WAITLINK,
+        gcvFALSE
+        );
+
+    /* Update the current pipe. */
+    Command->pipeSelect = commandBufferObject->exitPipe;
+
+    /* Update command queue offset. */
+    Command->offset  += waitLinkBytes;
+    Command->newQueue = gcvFALSE;
+
+    /* Update address of last WAIT. */
+    Command->waitPhysical = waitPhysical;
+    Command->waitLogical  = waitLogical;
+    Command->waitSize     = waitSize;
+
+    /* Update queue tail pointer. */
+    gcmkONERROR(gckHARDWARE_UpdateQueueTail(
+        hardware, Command->logical, Command->offset
+        ));
+
+#if gcdDUMP_COMMAND
+    gcmkPRINT("@[kernel.commit]");
+#endif
+#endif /* gcdNULL_DRIVER */
+
+    /* Release the context switching mutex. */
+    gcmkONERROR(gckOS_ReleaseMutex(Command->os, Command->mutexContext));
+    contextAcquired = gcvFALSE;
+
+    Command->commitStamp++;
+
+    stall = gcvFALSE;
+
+#if gcdLINK_QUEUE_SIZE
+    if (Command->kernel->stuckDump == gcvSTUCK_DUMP_STALL_COMMAND)
+    {
+        if ((Command->commitStamp % (gcdLINK_QUEUE_SIZE/2)) == 0)
+        {
+            /* If only context buffer and command buffer is recorded,
+            ** each commit costs 2 slot in queue, to make sure command
+            ** causing stuck is recorded, number of pending command buffer
+            ** is limited to (gckLINK_QUEUE_SIZE/2)
+            */
+            stall = gcvTRUE;
+        }
+    }
+#endif
+
+    /* Release the command queue. */
+    gcmkONERROR(gckCOMMAND_ExitCommit(Command, gcvFALSE));
+    commitEntered = gcvFALSE;
+
+    if (stall)
+    {
+        gcmkONERROR(gckCOMMAND_Stall(Command, gcvFALSE));
+    }
+
+#if VIVANTE_PROFILER_CONTEXT
+    if(sequenceAcquired)
+    {
+        gcmkONERROR(gckCOMMAND_Stall(Command, gcvTRUE));
+        if (Command->currContext)
+        {
+            gcmkONERROR(gckHARDWARE_UpdateContextProfile(
+                hardware,
+                Command->currContext));
+        }
+
+        /* Release the context switching mutex. */
+        gcmkONERROR(gckOS_ReleaseMutex(Command->os, Command->mutexContextSeq));
+        sequenceAcquired = gcvFALSE;
+    }
+#endif
+
+    /* Loop while there are records in the queue. */
+    while (EventQueue != gcvNULL)
+    {
+        if (needCopy)
+        {
+            /* Point to stack record. */
+            eventRecord = &_eventRecord;
+
+            /* Copy the data from the client. */
+            gcmkONERROR(gckOS_CopyFromUserData(
+                Command->os, eventRecord, EventQueue, gcmSIZEOF(gcsQUEUE)
+                ));
+        }
+        else
+        {
+            /* Map record into kernel memory. */
+            gcmkONERROR(gckOS_MapUserPointer(Command->os,
+                                             EventQueue,
+                                             gcmSIZEOF(gcsQUEUE),
+                                             &pointer));
+
+            eventRecord = pointer;
+        }
+
+        /* Append event record to event queue. */
+        gcmkONERROR(gckEVENT_AddList(
+            Command->kernel->eventObj, &eventRecord->iface, gcvKERNEL_PIXEL, gcvTRUE, gcvFALSE
+            ));
+
+        /* Next record in the queue. */
+        nextEventRecord = gcmUINT64_TO_PTR(eventRecord->next);
+
+        if (!needCopy)
+        {
+            /* Unmap record from kernel memory. */
+            gcmkONERROR(gckOS_UnmapUserPointer(
+                Command->os, EventQueue, gcmSIZEOF(gcsQUEUE), (gctPOINTER *) eventRecord
+                ));
+
+            eventRecord = gcvNULL;
+        }
+
+        EventQueue = nextEventRecord;
+    }
+
+    if (Command->kernel->eventObj->queueHead == gcvNULL
+     && Command->kernel->hardware->powerManagement == gcvTRUE
+    )
+    {
+        /* Commit done event by which work thread knows all jobs done. */
+        gcmkVERIFY_OK(
+            gckEVENT_CommitDone(Command->kernel->eventObj, gcvKERNEL_PIXEL));
+    }
+
+    /* Submit events. */
+    status = gckEVENT_Submit(Command->kernel->eventObj, gcvTRUE, gcvFALSE);
+    if (status == gcvSTATUS_INTERRUPTED)
+    {
+        gcmkTRACE(
+            gcvLEVEL_INFO,
+            "%s(%d): Intterupted in gckEVENT_Submit",
+            __FUNCTION__, __LINE__
+            );
+        status = gcvSTATUS_OK;
+    }
+    else
+    {
+        gcmkONERROR(status);
+    }
+
+#ifdef __QNXNTO__
+    if (userCommandBufferLogicalMapped)
+    {
+        gcmkONERROR(gckOS_UnmapUserPointer(
+            Command->os,
+            userCommandBufferLogical,
+            0,
+            commandBufferLogical));
+
+        userCommandBufferLogicalMapped = gcvFALSE;
+    }
+#endif
+
+    /* Unmap the command buffer pointer. */
+    if (commandBufferMapped)
+    {
+        gcmkONERROR(gckOS_UnmapUserPointer(
+            Command->os,
+            CommandBuffer,
+            gcmSIZEOF(struct _gcoCMDBUF),
+            commandBufferObject
+            ));
+
+        commandBufferMapped = gcvFALSE;
+    }
+
+    /* Return status. */
+    gcmkFOOTER();
+    return gcvSTATUS_OK;
+
+OnError:
+    if ((eventRecord != gcvNULL) && !needCopy)
+    {
+        /* Roll back. */
+        gcmkVERIFY_OK(gckOS_UnmapUserPointer(
+            Command->os,
+            EventQueue,
+            gcmSIZEOF(gcsQUEUE),
+            (gctPOINTER *) eventRecord
+            ));
+    }
+
+    if (contextAcquired)
+    {
+        /* Release the context switching mutex. */
+        gcmkVERIFY_OK(gckOS_ReleaseMutex(Command->os, Command->mutexContext));
+    }
+
+    if (commitEntered)
+    {
+        /* Release the command queue mutex. */
+        gcmkVERIFY_OK(gckCOMMAND_ExitCommit(Command, gcvFALSE));
+    }
+
+#if VIVANTE_PROFILER_CONTEXT
+    if (sequenceAcquired)
+    {
+        /* Release the context sequence mutex. */
+        gcmkVERIFY_OK(gckOS_ReleaseMutex(Command->os, Command->mutexContextSeq));
+    }
+#endif
+
+#ifdef __QNXNTO__
+    if (userCommandBufferLinkMapped)
+    {
+        gcmkONERROR(gckOS_UnmapUserPointer(
+            Command->os,
+            userCommandBufferLink,
+            0,
+            commandBufferLink));
+    }
+
+    if (userCommandBufferLogicalMapped)
+    {
+        gcmkVERIFY_OK(gckOS_UnmapUserPointer(
+            Command->os,
+            userCommandBufferLogical,
+            0,
+            commandBufferLogical));
+    }
+#endif
+
+    /* Unmap the command buffer pointer. */
+    if (commandBufferMapped)
+    {
+        gcmkVERIFY_OK(gckOS_UnmapUserPointer(
+            Command->os,
+            CommandBuffer,
+            gcmSIZEOF(struct _gcoCMDBUF),
+            commandBufferObject
+            ));
+    }
+
+    /* Return status. */
+    gcmkFOOTER();
+    return status;
+}
+
+/*******************************************************************************
+**
+**  gckCOMMAND_Reserve
+**
+**  Reserve space in the command queue.  Also acquire the command queue mutex.
+**
+**  INPUT:
+**
+**      gckCOMMAND Command
+**          Pointer to an gckCOMMAND object.
+**
+**      gctSIZE_T RequestedBytes
+**          Number of bytes previously reserved.
+**
+**  OUTPUT:
+**
+**      gctPOINTER * Buffer
+**          Pointer to a variable that will receive the address of the reserved
+**          space.
+**
+**      gctSIZE_T * BufferSize
+**          Pointer to a variable that will receive the number of bytes
+**          available in the command queue.
+*/
+gceSTATUS
+gckCOMMAND_Reserve(
+    IN gckCOMMAND Command,
+    IN gctUINT32 RequestedBytes,
+    OUT gctPOINTER * Buffer,
+    OUT gctUINT32 * BufferSize
+    )
+{
+    gceSTATUS status;
+    gctUINT32 bytes;
+    gctUINT32 requiredBytes;
+    gctUINT32 requestedAligned;
+
+    gcmkHEADER_ARG("Command=0x%x RequestedBytes=%lu", Command, RequestedBytes);
+
+    /* Verify the arguments. */
+    gcmkVERIFY_OBJECT(Command, gcvOBJ_COMMAND);
+
+    /* Compute aligned number of reuested bytes. */
+    requestedAligned = gcmALIGN(RequestedBytes, Command->alignment);
+
+    /* Another WAIT/LINK command sequence will have to be appended after
+       the requested area being reserved. Compute the number of bytes
+       required for WAIT/LINK at the location after the reserved area. */
+    gcmkONERROR(gckHARDWARE_WaitLink(
+        Command->kernel->hardware,
+        gcvNULL,
+        Command->offset + requestedAligned,
+        &requiredBytes,
+        gcvNULL,
+        gcvNULL
+        ));
+
+    /* Compute total number of bytes required. */
+    requiredBytes += requestedAligned;
+
+    /* Compute number of bytes available in command queue. */
+    bytes = Command->pageSize - Command->offset;
+
+    /* Is there enough space in the current command queue? */
+    if (bytes < requiredBytes)
+    {
+        /* Create a new command queue. */
+        gcmkONERROR(_NewQueue(Command));
+
+        /* Recompute the number of bytes in the new kernel command queue. */
+        bytes = Command->pageSize - Command->offset;
+
+        /* Still not enough space? */
+        if (bytes < requiredBytes)
+        {
+            /* Rare case, not enough room in command queue. */
+            gcmkONERROR(gcvSTATUS_BUFFER_TOO_SMALL);
+        }
+    }
+
+    /* Return pointer to empty slot command queue. */
+    *Buffer = (gctUINT8 *) Command->logical + Command->offset;
+
+    /* Return number of bytes left in command queue. */
+    *BufferSize = bytes;
+
+    /* Success. */
+    gcmkFOOTER_ARG("*Buffer=0x%x *BufferSize=%lu", *Buffer, *BufferSize);
+    return gcvSTATUS_OK;
+
+OnError:
+    /* Return status. */
+    gcmkFOOTER();
+    return status;
+}
+
+/*******************************************************************************
+**
+**  gckCOMMAND_Execute
+**
+**  Execute a previously reserved command queue by appending a WAIT/LINK command
+**  sequence after it and modifying the last WAIT into a LINK command.  The
+**  command FIFO mutex will be released whether this function succeeds or not.
+**
+**  INPUT:
+**
+**      gckCOMMAND Command
+**          Pointer to an gckCOMMAND object.
+**
+**      gctSIZE_T RequestedBytes
+**          Number of bytes previously reserved.
+**
+**  OUTPUT:
+**
+**      Nothing.
+*/
+gceSTATUS
+gckCOMMAND_Execute(
+    IN gckCOMMAND Command,
+    IN gctUINT32 RequestedBytes
+    )
+{
+    gceSTATUS status;
+
+    gctUINT32 waitLinkPhysical;
+    gctUINT8_PTR waitLinkLogical;
+    gctUINT32 waitLinkOffset;
+    gctUINT32 waitLinkBytes;
+
+    gctUINT32 waitPhysical;
+    gctPOINTER waitLogical;
+    gctUINT32 waitOffset;
+    gctUINT32 waitBytes;
+
+    gctUINT32 linkLow, linkHigh;
+
+#if gcdNONPAGED_MEMORY_CACHEABLE
+    gctPHYS_ADDR execPhysical;
+#endif
+    gctPOINTER execLogical;
+    gctUINT32 execAddress;
+    gctUINT32 execBytes;
+
+    gcmkHEADER_ARG("Command=0x%x RequestedBytes=%lu", Command, RequestedBytes);
+
+    /* Verify the arguments. */
+    gcmkVERIFY_OBJECT(Command, gcvOBJ_COMMAND);
+
+    /* Compute offset for WAIT/LINK. */
+    waitLinkOffset = Command->offset + RequestedBytes;
+
+    /* Compute number of bytes left in command queue. */
+    waitLinkBytes = Command->pageSize - waitLinkOffset;
+
+    /* Compute the location if WAIT/LINK command sequence. */
+    waitLinkPhysical =                Command->physical + waitLinkOffset;
+    waitLinkLogical  = (gctUINT8_PTR) Command->logical  + waitLinkOffset;
+
+    /* Append WAIT/LINK in command queue. */
+    gcmkONERROR(gckHARDWARE_WaitLink(
+        Command->kernel->hardware,
+        waitLinkLogical,
+        waitLinkOffset,
+        &waitLinkBytes,
+        &waitOffset,
+        &waitBytes
+        ));
+
+    /* Compute the location if WAIT command. */
+    waitPhysical = waitLinkPhysical + waitOffset;
+    waitLogical  = waitLinkLogical  + waitOffset;
+
+    /* Determine the location to jump to for the command buffer being
+    ** scheduled. */
+    if (Command->newQueue)
+    {
+        /* New command queue, jump to the beginning of it. */
+#if gcdNONPAGED_MEMORY_CACHEABLE
+        execPhysical = Command->physical;
+#endif
+        execLogical  = Command->logical;
+        execAddress  = Command->address;
+        execBytes    = waitLinkOffset + waitLinkBytes;
+    }
+    else
+    {
+        /* Still within the preexisting command queue, jump directly to the
+           reserved area. */
+#if gcdNONPAGED_MEMORY_CACHEABLE
+        execPhysical = (gctUINT8 *) Command->physical + Command->offset;
+#endif
+        execLogical  = (gctUINT8 *) Command->logical  + Command->offset;
+        execAddress  =              Command->address  + Command->offset;
+        execBytes    = RequestedBytes + waitLinkBytes;
+    }
+
+#if gcdNONPAGED_MEMORY_CACHEABLE
+    /* Flush the cache. */
+    gcmkONERROR(gckOS_CacheClean(
+        Command->os,
+        Command->kernelProcessID,
+        gcvNULL,
+        (gctUINT32)execPhysical,
+        execLogical,
+        execBytes
+        ));
+#endif
+
+    /* Convert the last WAIT into a LINK. */
+    gcmkONERROR(gckHARDWARE_Link(
+        Command->kernel->hardware,
+        Command->waitLogical,
+        execAddress,
+        execBytes,
+        &Command->waitSize,
+        &linkLow,
+        &linkHigh
+        ));
+
+#if gcdLINK_QUEUE_SIZE
+    if (Command->kernel->stuckDump >= gcvSTUCK_DUMP_ALL_COMMAND)
+    {
+        gckLINKQUEUE_Enqueue(
+            &Command->kernel->hardware->linkQueue,
+            execAddress,
+            execAddress + execBytes,
+            linkLow,
+            linkHigh
+            );
+    }
+#endif
+
+#if gcdNONPAGED_MEMORY_CACHEABLE
+    /* Flush the cache. */
+    gcmkONERROR(gckOS_CacheClean(
+        Command->os,
+        Command->kernelProcessID,
+        gcvNULL,
+        (gctUINT32)Command->waitPhysical,
+        Command->waitLogical,
+        Command->waitSize
+        ));
+#endif
+
+    gcmkDUMPCOMMAND(
+        Command->os,
+        Command->waitLogical,
+        Command->waitSize,
+        gceDUMP_BUFFER_LINK,
+        gcvFALSE
+        );
+
+    gcmkDUMPCOMMAND(
+        Command->os,
+        execLogical,
+        execBytes,
+        gceDUMP_BUFFER_KERNEL,
+        gcvFALSE
+        );
+
+    /* Update the pointer to the last WAIT. */
+    Command->waitPhysical = waitPhysical;
+    Command->waitLogical  = waitLogical;
+    Command->waitSize     = waitBytes;
+
+    /* Update the command queue. */
+    Command->offset  += RequestedBytes + waitLinkBytes;
+    Command->newQueue = gcvFALSE;
+
+    /* Update queue tail pointer. */
+    gcmkONERROR(gckHARDWARE_UpdateQueueTail(
+        Command->kernel->hardware, Command->logical, Command->offset
+        ));
+
+#if gcdDUMP_COMMAND
+    gcmkPRINT("@[kernel.execute]");
+#endif
+
+    /* Success. */
+    gcmkFOOTER_NO();
+    return gcvSTATUS_OK;
+
+OnError:
+    /* Return the status. */
+    gcmkFOOTER();
+    return status;
+}
+
+/*******************************************************************************
+**
+**  gckCOMMAND_Stall
+**
+**  The calling thread will be suspended until the command queue has been
+**  completed.
+**
+**  INPUT:
+**
+**      gckCOMMAND Command
+**          Pointer to an gckCOMMAND object.
+**
+**      gctBOOL FromPower
+**          Determines whether the call originates from inside the power
+**          management or not.
+**
+**  OUTPUT:
+**
+**      Nothing.
+*/
+gceSTATUS
+gckCOMMAND_Stall(
+    IN gckCOMMAND Command,
+    IN gctBOOL FromPower
+    )
+{
+#if gcdNULL_DRIVER
+    /* Do nothing with infinite hardware. */
+    return gcvSTATUS_OK;
+#else
+    gckOS os;
+    gckHARDWARE hardware;
+    gckEVENT eventObject;
+    gceSTATUS status;
+    gctSIGNAL signal = gcvNULL;
+    gctUINT timer = 0;
+
+    gcmkHEADER_ARG("Command=0x%x", Command);
+
+    /* Verify the arguments. */
+    gcmkVERIFY_OBJECT(Command, gcvOBJ_COMMAND);
+
+    /* Extract the gckOS object pointer. */
+    os = Command->os;
+    gcmkVERIFY_OBJECT(os, gcvOBJ_OS);
+
+    /* Extract the gckHARDWARE object pointer. */
+    hardware = Command->kernel->hardware;
+    gcmkVERIFY_OBJECT(hardware, gcvOBJ_HARDWARE);
+
+    /* Extract the gckEVENT object pointer. */
+    eventObject = Command->kernel->eventObj;
+    gcmkVERIFY_OBJECT(eventObject, gcvOBJ_EVENT);
+
+    /* Allocate the signal. */
+    gcmkONERROR(gckOS_CreateSignal(os, gcvTRUE, &signal));
+
+    /* Append the EVENT command to trigger the signal. */
+    gcmkONERROR(gckEVENT_Signal(eventObject, signal, gcvKERNEL_PIXEL));
+
+    /* Submit the event queue. */
+    gcmkONERROR(gckEVENT_Submit(eventObject, gcvTRUE, FromPower));
+
+#if gcdDUMP_COMMAND
+    gcmkPRINT("@[kernel.stall]");
+#endif
+
+    if (status == gcvSTATUS_CHIP_NOT_READY)
+    {
+        /* Error. */
+        goto OnError;
+    }
+
+    do
+    {
+        /* Wait for the signal. */
+        status = gckOS_WaitSignal(os, signal, gcdGPU_ADVANCETIMER);
+
+        if (status == gcvSTATUS_TIMEOUT)
+        {
+#if gcmIS_DEBUG(gcdDEBUG_CODE)
+            gctUINT32 idle;
+
+            /* Read idle register. */
+            gcmkVERIFY_OK(gckHARDWARE_GetIdle(
+                hardware, gcvFALSE, &idle
+                ));
+
+            gcmkTRACE(
+                gcvLEVEL_ERROR,
+                "%s(%d): idle=%08x",
+                __FUNCTION__, __LINE__, idle
+                );
+
+            gcmkVERIFY_OK(gckOS_MemoryBarrier(os, gcvNULL));
+#endif
+
+            /* Advance timer. */
+            timer += gcdGPU_ADVANCETIMER;
+        }
+        else if (status == gcvSTATUS_INTERRUPTED)
+        {
+            gcmkONERROR(gcvSTATUS_INTERRUPTED);
+        }
+
+    }
+    while (gcmIS_ERROR(status));
+
+    /* Bail out on timeout. */
+    if (gcmIS_ERROR(status))
+    {
+        /* Broadcast the stuck GPU. */
+        gcmkONERROR(gckOS_Broadcast(
+            os, hardware, gcvBROADCAST_GPU_STUCK
+            ));
+    }
+
+    /* Delete the signal. */
+    gcmkVERIFY_OK(gckOS_DestroySignal(os, signal));
+
+    /* Success. */
+    gcmkFOOTER_NO();
+    return gcvSTATUS_OK;
+
+OnError:
+    if (signal != gcvNULL)
+    {
+        /* Free the signal. */
+        gcmkVERIFY_OK(gckOS_DestroySignal(os, signal));
+    }
+
+    /* Return the status. */
+    gcmkFOOTER();
+    return status;
+#endif
+}
+
+/*******************************************************************************
+**
+**  gckCOMMAND_Attach
+**
+**  Attach user process.
+**
+**  INPUT:
+**
+**      gckCOMMAND Command
+**          Pointer to a gckCOMMAND object.
+**
+**      gctUINT32 ProcessID
+**          Current process ID.
+**
+**  OUTPUT:
+**
+**      gckCONTEXT * Context
+**          Pointer to a variable that will receive a pointer to a new
+**          gckCONTEXT object.
+**
+**      gctSIZE_T * StateCount
+**          Pointer to a variable that will receive the number of states
+**          in the context buffer.
+*/
+gceSTATUS
+gckCOMMAND_Attach(
+    IN gckCOMMAND Command,
+    OUT gckCONTEXT * Context,
+    OUT gctSIZE_T * MaxState,
+    OUT gctUINT32 * NumStates,
+    IN gctUINT32 ProcessID
+    )
+{
+    gceSTATUS status;
+    gctBOOL acquired = gcvFALSE;
+
+    gcmkHEADER_ARG("Command=0x%x", Command);
+
+    /* Verify the arguments. */
+    gcmkVERIFY_OBJECT(Command, gcvOBJ_COMMAND);
+
+    /* Acquire the context switching mutex. */
+    gcmkONERROR(gckOS_AcquireMutex(
+        Command->os, Command->mutexContext, gcvINFINITE
+        ));
+    acquired = gcvTRUE;
+
+    /* Construct a gckCONTEXT object. */
+    gcmkONERROR(gckCONTEXT_Construct(
+        Command->os,
+        Command->kernel->hardware,
+        ProcessID,
+        Context
+        ));
+
+    /* Return the number of states in the context. */
+    * MaxState  = (* Context)->maxState;
+    * NumStates = (* Context)->numStates;
+
+    /* Release the context switching mutex. */
+    gcmkONERROR(gckOS_ReleaseMutex(Command->os, Command->mutexContext));
+    acquired = gcvFALSE;
+
+    /* Success. */
+    gcmkFOOTER_ARG("*Context=0x%x", *Context);
+    return gcvSTATUS_OK;
+
+OnError:
+    /* Release mutex. */
+    if (acquired)
+    {
+        /* Release the context switching mutex. */
+        gcmkVERIFY_OK(gckOS_ReleaseMutex(Command->os, Command->mutexContext));
+        acquired = gcvFALSE;
+    }
+
+    /* Return the status. */
+    gcmkFOOTER();
+    return status;
+}
+
+/*******************************************************************************
+**
+**  gckCOMMAND_Detach
+**
+**  Detach user process.
+**
+**  INPUT:
+**
+**      gckCOMMAND Command
+**          Pointer to a gckCOMMAND object.
+**
+**      gckCONTEXT Context
+**          Pointer to a gckCONTEXT object to be destroyed.
+**
+**  OUTPUT:
+**
+**      Nothing.
+*/
+gceSTATUS
+gckCOMMAND_Detach(
+    IN gckCOMMAND Command,
+    IN gckCONTEXT Context
+    )
+{
+    gceSTATUS status;
+    gctBOOL acquired = gcvFALSE;
+
+    gcmkHEADER_ARG("Command=0x%x Context=0x%x", Command, Context);
+
+    /* Verify the arguments. */
+    gcmkVERIFY_OBJECT(Command, gcvOBJ_COMMAND);
+
+    /* Acquire the context switching mutex. */
+    gcmkONERROR(gckOS_AcquireMutex(
+        Command->os, Command->mutexContext, gcvINFINITE
+        ));
+    acquired = gcvTRUE;
+
+    /* Construct a gckCONTEXT object. */
+    gcmkONERROR(gckCONTEXT_Destroy(Context));
+
+    if (Command->currContext == Context)
+    {
+        /* Detach from gckCOMMAND object if the destoryed context is current context. */
+        Command->currContext = gcvNULL;
+    }
+
+    /* Release the context switching mutex. */
+    gcmkONERROR(gckOS_ReleaseMutex(Command->os, Command->mutexContext));
+    acquired = gcvFALSE;
+
+    /* Return the status. */
+    gcmkFOOTER();
+    return gcvSTATUS_OK;
+
+OnError:
+    /* Release mutex. */
+    if (acquired)
+    {
+        /* Release the context switching mutex. */
+        gcmkVERIFY_OK(gckOS_ReleaseMutex(Command->os, Command->mutexContext));
+        acquired = gcvFALSE;
+    }
+
+    /* Return the status. */
+    gcmkFOOTER();
+    return status;
+}
+
+/*******************************************************************************
+**
+**  gckCOMMAND_DumpExecutingBuffer
+**
+**  Dump the command buffer which GPU is executing.
+**
+**  INPUT:
+**
+**      gckCOMMAND Command
+**          Pointer to a gckCOMMAND object.
+**
+**  OUTPUT:
+**
+**      Nothing.
+*/
+gceSTATUS
+gckCOMMAND_DumpExecutingBuffer(
+    IN gckCOMMAND Command
+    )
+{
+    gceSTATUS status;
+    gckVIRTUAL_COMMAND_BUFFER_PTR buffer = gcvNULL;
+    gctUINT32 gpuAddress;
+    gctSIZE_T pageCount;
+    gctPOINTER entry;
+    gckOS os = Command->os;
+    gckKERNEL kernel = Command->kernel;
+    gctUINT32 i;
+    gctUINT32 dumpRear;
+    gckLINKQUEUE queue = &kernel->hardware->linkQueue;
+    gctSIZE_T bytes;
+    gckLINKDATA linkData;
+    gctUINT32 offset;
+    gctPOINTER entryDump;
+    gctUINT32 pid;
+    gctUINT8 processName[24] = {0};
+
+    gcmkPRINT("**************************\n");
+    gcmkPRINT("**** COMMAND BUF DUMP ****\n");
+    gcmkPRINT("**************************\n");
+
+    gcmkPRINT("  Submitted commit stamp = %lld", Command->commitStamp - 1);
+    gcmkPRINT("  Executed commit stamp  = %lld", *(gctUINT64_PTR)Command->fence->logical);
+
+    gcmkVERIFY_OK(gckOS_ReadRegisterEx(os, kernel->core, 0x664, &gpuAddress));
+
+    gcmkPRINT("DMA Address 0x%08X, memory around:", gpuAddress);
+
+    /* Search and dump memory around DMA address. */
+    if (kernel->virtualCommandBuffer)
+    {
+        status = gckKERNEL_QueryGPUAddress(kernel, gpuAddress, &buffer);
+    }
+    else
+    {
+        status = gcvSTATUS_OK;
+    }
+
+    if (gcmIS_SUCCESS(status))
+    {
+        if (kernel->virtualCommandBuffer)
+        {
+            gcmkVERIFY_OK(gckOS_CreateKernelVirtualMapping(
+                os, buffer->physical, buffer->bytes, &entry, &pageCount));
+
+            offset = gpuAddress - buffer->gpuAddress;
+
+            entryDump  = entry;
+
+            /* Dump one pages. */
+            bytes = 4096;
+
+            /* Align to page. */
+            offset &= 0xfffff000;
+
+            /* Kernel address of page where stall point stay. */
+            entryDump = (gctUINT8_PTR)entryDump + offset;
+
+            /* Align to page. */
+            gpuAddress &= 0xfffff000;
+        }
+        else
+        {
+            gcmkVERIFY_OK(gckOS_MapPhysical(os, gpuAddress, 4096, &entry));
+
+            /* Align to page start. */
+            entryDump  = (gctPOINTER)((gctUINTPTR_T)entry & ~0xFFF);
+            gpuAddress = gpuAddress & ~0xFFF;
+            bytes      = 4096;
+        }
+
+        gcmkPRINT("User Command Buffer:\n");
+        _DumpBuffer(entryDump, gpuAddress, bytes);
+
+        if (kernel->virtualCommandBuffer)
+        {
+            gcmkVERIFY_OK(gckOS_DestroyKernelVirtualMapping(
+                os, buffer->physical, buffer->bytes, entry));
+        }
+        else
+        {
+             gcmkVERIFY_OK(gckOS_UnmapPhysical(os, entry, 4096));
+        }
+    }
+    else
+    {
+        _DumpKernelCommandBuffer(Command);
+    }
+
+    /* Dump link queue. */
+    if (queue->count)
+    {
+        gcmkPRINT("Dump Level is %d, dump %d valid record in link queue:",
+                  Command->kernel->stuckDump, queue->count);
+
+        dumpRear  = queue->count;
+
+        for (i = 0; i < dumpRear; i++)
+        {
+            gckLINKQUEUE_GetData(queue, i, &linkData);
+
+            /* Get gpu address of this command buffer. */
+            gpuAddress = linkData->start;
+            bytes = linkData->end - gpuAddress;
+
+            pid = linkData->pid;
+
+            gckOS_GetProcessNameByPid(pid, 16, processName);
+
+            if (kernel->virtualCommandBuffer)
+            {
+                buffer = gcvNULL;
+
+                /* Get the whole buffer. */
+                status = gckKERNEL_QueryGPUAddress(kernel, gpuAddress, &buffer);
+
+                if (gcmIS_ERROR(status))
+                {
+                    /* Get kernel address of kernel command buffer. */
+                    status = gckCOMMAND_AddressInKernelCommandBuffer(
+                             kernel->command, gpuAddress, &entry);
+
+                    if (gcmIS_ERROR(status))
+                    {
+                        status = gckHARDWARE_AddressInHardwareFuncions(
+                                 kernel->hardware, gpuAddress, &entry);
+
+                        if (gcmIS_ERROR(status))
+                        {
+                            gcmkPRINT("Buffer [%08X - %08X] not found, may be freed",
+                                      linkData->start,
+                                      linkData->end);
+                            continue;
+                        }
+                    }
+
+                    offset = 0;
+                    gcmkPRINT("Kernel Command Buffer: %08X, %08X", linkData->linkLow, linkData->linkHigh);
+                }
+                else
+                {
+                    /* Get kernel logical for dump. */
+                    if (buffer->kernelLogical)
+                    {
+                        /* Get kernel logical directly if it is a context buffer. */
+                        entry = buffer->kernelLogical;
+                        gcmkPRINT("Context Buffer: %08X, %08X PID:%d %s",
+                                  linkData->linkLow, linkData->linkHigh, linkData->pid, processName);
+                    }
+                    else
+                    {
+                        /* Make it accessiable by kernel if it is a user command buffer. */
+                        gcmkVERIFY_OK(
+                            gckOS_CreateKernelVirtualMapping(os,
+                                                             buffer->physical,
+                                                             buffer->bytes,
+                                                             &entry,
+                                                             &pageCount));
+                         gcmkPRINT("User Command Buffer: %08X, %08X PID:%d %s",
+                                   linkData->linkLow, linkData->linkHigh, linkData->pid, processName);
+                    }
+
+                    offset = gpuAddress - buffer->gpuAddress;
+                }
+
+                /* Dump from the entry. */
+                _DumpBuffer((gctUINT8_PTR)entry + offset, gpuAddress, bytes);
+
+                /* Release kernel logical address if neccessary. */
+                if (buffer && !buffer->kernelLogical)
+                {
+                    gcmkVERIFY_OK(
+                        gckOS_DestroyKernelVirtualMapping(os,
+                                                          buffer->physical,
+                                                          buffer->bytes,
+                                                          entry));
+                }
+            }
+            else
+            {
+                gcmkVERIFY_OK(gckOS_MapPhysical(os, gpuAddress, bytes, &entry));
+
+                gcmkPRINT("Command Buffer: %08X, %08X PID:%d %s",
+                          linkData->linkLow, linkData->linkHigh, linkData->pid, processName);
+
+                _DumpBuffer((gctUINT8_PTR)entry, gpuAddress, bytes);
+
+                gcmkVERIFY_OK(gckOS_UnmapPhysical(os, entry, bytes));
+            }
+        }
+    }
+
+    return gcvSTATUS_OK;
+}
+
+gceSTATUS
+gckCOMMAND_AddressInKernelCommandBuffer(
+    IN gckCOMMAND Command,
+    IN gctUINT32 Address,
+    OUT gctPOINTER * Pointer
+    )
+{
+    gctINT i;
+
+    for (i = 0; i < gcdCOMMAND_QUEUES; i++)
+    {
+        if ((Address >= Command->queues[i].address)
+         && (Address < (Command->queues[i].address + Command->pageSize))
+        )
+        {
+            *Pointer = (gctUINT8_PTR)Command->queues[i].logical
+                     + (Address - Command->queues[i].address)
+                     ;
+
+            return gcvSTATUS_OK;
+        }
+    }
+
+    return gcvSTATUS_NOT_FOUND;
+}
diff --git a/src/hal/kernel/gc_hal_kernel_db.c b/src/hal/kernel/gc_hal_kernel_db.c
new file mode 100755
index 0000000..3db981b
--- /dev/null
+++ b/src/hal/kernel/gc_hal_kernel_db.c
@@ -0,0 +1,1884 @@
+/****************************************************************************
+*
+*    The MIT License (MIT)
+*
+*    Copyright (c) 2014 Vivante Corporation
+*
+*    Permission is hereby granted, free of charge, to any person obtaining a
+*    copy of this software and associated documentation files (the "Software"),
+*    to deal in the Software without restriction, including without limitation
+*    the rights to use, copy, modify, merge, publish, distribute, sublicense,
+*    and/or sell copies of the Software, and to permit persons to whom the
+*    Software is furnished to do so, subject to the following conditions:
+*
+*    The above copyright notice and this permission notice shall be included in
+*    all copies or substantial portions of the Software.
+*
+*    THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+*    IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+*    FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+*    AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+*    LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+*    FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+*    DEALINGS IN THE SOFTWARE.
+*
+*****************************************************************************
+*
+*    The GPL License (GPL)
+*
+*    Copyright (C) 2014  Vivante Corporation
+*
+*    This program is free software; you can redistribute it and/or
+*    modify it under the terms of the GNU General Public License
+*    as published by the Free Software Foundation; either version 2
+*    of the License, or (at your option) any later version.
+*
+*    This program is distributed in the hope that it will be useful,
+*    but WITHOUT ANY WARRANTY; without even the implied warranty of
+*    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+*    GNU General Public License for more details.
+*
+*    You should have received a copy of the GNU General Public License
+*    along with this program; if not, write to the Free Software Foundation,
+*    Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+*
+*****************************************************************************
+*
+*    Note: This software is released under dual MIT and GPL licenses. A
+*    recipient may use this file under the terms of either the MIT license or
+*    GPL License. If you wish to use only one license not the other, you can
+*    indicate your decision by deleting one of the above license notices in your
+*    version of this file.
+*
+*****************************************************************************/
+
+
+#include "gc_hal_kernel_precomp.h"
+
+#define _GC_OBJ_ZONE    gcvZONE_DATABASE
+
+/*******************************************************************************
+***** Private fuctions ********************************************************/
+
+#define _GetSlot(database, x) \
+    (gctUINT32)(gcmPTR_TO_UINT64(x) % gcmCOUNTOF(database->list))
+
+/*******************************************************************************
+**  gckKERNEL_NewDatabase
+**
+**  Create a new database structure and insert it to the head of the hash list.
+**
+**  INPUT:
+**
+**      gckKERNEL Kernel
+**          Pointer to a gckKERNEL object.
+**
+**      gctUINT32 ProcessID
+**          ProcessID that identifies the database.
+**
+**  OUTPUT:
+**
+**      gcsDATABASE_PTR * Database
+**          Pointer to a variable receiving the database structure pointer on
+**          success.
+*/
+static gceSTATUS
+gckKERNEL_NewDatabase(
+    IN gckKERNEL Kernel,
+    IN gctUINT32 ProcessID,
+    OUT gcsDATABASE_PTR * Database
+    )
+{
+    gceSTATUS status;
+    gcsDATABASE_PTR database;
+    gctBOOL acquired = gcvFALSE;
+    gctSIZE_T slot;
+    gcsDATABASE_PTR existingDatabase;
+
+    gcmkHEADER_ARG("Kernel=0x%x ProcessID=%d", Kernel, ProcessID);
+
+    /* Acquire the database mutex. */
+    gcmkONERROR(gckOS_AcquireMutex(Kernel->os, Kernel->db->dbMutex, gcvINFINITE));
+    acquired = gcvTRUE;
+
+    /* Compute the hash for the database. */
+    slot = ProcessID % gcmCOUNTOF(Kernel->db->db);
+
+    /* Walk the hash list. */
+    for (existingDatabase = Kernel->db->db[slot];
+         existingDatabase != gcvNULL;
+         existingDatabase = existingDatabase->next)
+    {
+        if (existingDatabase->processID == ProcessID)
+        {
+            /* One process can't be added twice. */
+            gcmkONERROR(gcvSTATUS_NOT_SUPPORTED);
+        }
+    }
+
+    if (Kernel->db->freeDatabase != gcvNULL)
+    {
+        /* Allocate a database from the free list. */
+        database             = Kernel->db->freeDatabase;
+        Kernel->db->freeDatabase = database->next;
+    }
+    else
+    {
+        gctPOINTER pointer = gcvNULL;
+
+        /* Allocate a new database from the heap. */
+        gcmkONERROR(gckOS_Allocate(Kernel->os,
+                                   gcmSIZEOF(gcsDATABASE),
+                                   &pointer));
+
+        gckOS_ZeroMemory(pointer, gcmSIZEOF(gcsDATABASE));
+
+        database = pointer;
+
+        gcmkONERROR(gckOS_CreateMutex(Kernel->os, &database->counterMutex));
+    }
+
+    /* Insert the database into the hash. */
+    database->next   = Kernel->db->db[slot];
+    Kernel->db->db[slot] = database;
+
+    /* Save the hash slot. */
+    database->slot = slot;
+
+    /* Release the database mutex. */
+    gcmkONERROR(gckOS_ReleaseMutex(Kernel->os, Kernel->db->dbMutex));
+
+    /* Return the database. */
+    *Database = database;
+
+    /* Success. */
+    gcmkFOOTER_ARG("*Database=0x%x", *Database);
+    return gcvSTATUS_OK;
+
+OnError:
+    if (acquired)
+    {
+        /* Release the database mutex. */
+        gcmkVERIFY_OK(gckOS_ReleaseMutex(Kernel->os, Kernel->db->dbMutex));
+    }
+
+    /* Return the status. */
+    gcmkFOOTER();
+    return status;
+}
+
+/*******************************************************************************
+**  gckKERNEL_FindDatabase
+**
+**  Find a database identified by a process ID and move it to the head of the
+**  hash list.
+**
+**  INPUT:
+**
+**      gckKERNEL Kernel
+**          Pointer to a gckKERNEL object.
+**
+**      gctUINT32 ProcessID
+**          ProcessID that identifies the database.
+**
+**      gctBOOL LastProcessID
+**          gcvTRUE if searching for the last known process ID.  gcvFALSE if
+**          we need to search for the process ID specified by the ProcessID
+**          argument.
+**
+**  OUTPUT:
+**
+**      gcsDATABASE_PTR * Database
+**          Pointer to a variable receiving the database structure pointer on
+**          success.
+*/
+gceSTATUS
+gckKERNEL_FindDatabase(
+    IN gckKERNEL Kernel,
+    IN gctUINT32 ProcessID,
+    IN gctBOOL LastProcessID,
+    OUT gcsDATABASE_PTR * Database
+    )
+{
+    gceSTATUS status;
+    gcsDATABASE_PTR database, previous;
+    gctSIZE_T slot;
+    gctBOOL acquired = gcvFALSE;
+
+    gcmkHEADER_ARG("Kernel=0x%x ProcessID=%d LastProcessID=%d",
+                   Kernel, ProcessID, LastProcessID);
+
+    /* Compute the hash for the database. */
+    slot = ProcessID % gcmCOUNTOF(Kernel->db->db);
+
+    /* Acquire the database mutex. */
+    gcmkONERROR(
+        gckOS_AcquireMutex(Kernel->os, Kernel->db->dbMutex, gcvINFINITE));
+    acquired = gcvTRUE;
+
+    /* Check whether we are getting the last known database. */
+    if (LastProcessID)
+    {
+        /* Use last database. */
+        database = Kernel->db->lastDatabase;
+
+        if (database == gcvNULL)
+        {
+            /* Database not found. */
+            gcmkONERROR(gcvSTATUS_INVALID_DATA);
+        }
+    }
+    else
+    {
+        /* Walk the hash list. */
+        for (previous = gcvNULL, database = Kernel->db->db[slot];
+             database != gcvNULL;
+             database = database->next)
+        {
+            if (database->processID == ProcessID)
+            {
+                /* Found it! */
+                break;
+            }
+
+            previous = database;
+        }
+
+        if (database == gcvNULL)
+        {
+            /* Database not found. */
+            gcmkONERROR(gcvSTATUS_INVALID_DATA);
+        }
+
+        if (previous != gcvNULL)
+        {
+            /* Move database to the head of the hash list. */
+            previous->next   = database->next;
+            database->next   = Kernel->db->db[slot];
+            Kernel->db->db[slot] = database;
+        }
+    }
+
+    /* Release the database mutex. */
+    gcmkONERROR(gckOS_ReleaseMutex(Kernel->os, Kernel->db->dbMutex));
+
+    /* Return the database. */
+    *Database = database;
+
+    /* Success. */
+    gcmkFOOTER_ARG("*Database=0x%x", *Database);
+    return gcvSTATUS_OK;
+
+OnError:
+    if (acquired)
+    {
+        /* Release the database mutex. */
+        gcmkVERIFY_OK(gckOS_ReleaseMutex(Kernel->os, Kernel->db->dbMutex));
+    }
+
+    /* Return the status. */
+    gcmkFOOTER();
+    return status;
+}
+
+/*******************************************************************************
+**  gckKERNEL_DeleteDatabase
+**
+**  Remove a database from the hash list and delete its structure.
+**
+**  INPUT:
+**
+**      gckKERNEL Kernel
+**          Pointer to a gckKERNEL object.
+**
+**      gcsDATABASE_PTR Database
+**          Pointer to the database structure to remove.
+**
+**  OUTPUT:
+**
+**      Nothing.
+*/
+static gceSTATUS
+gckKERNEL_DeleteDatabase(
+    IN gckKERNEL Kernel,
+    IN gcsDATABASE_PTR Database
+    )
+{
+    gceSTATUS status;
+    gctBOOL acquired = gcvFALSE;
+    gcsDATABASE_PTR database;
+
+    gcmkHEADER_ARG("Kernel=0x%x Database=0x%x", Kernel, Database);
+
+    /* Acquire the database mutex. */
+    gcmkONERROR(
+        gckOS_AcquireMutex(Kernel->os, Kernel->db->dbMutex, gcvINFINITE));
+    acquired = gcvTRUE;
+
+    /* Check slot value. */
+    gcmkVERIFY_ARGUMENT(Database->slot < gcmCOUNTOF(Kernel->db->db));
+
+    if (Database->slot < gcmCOUNTOF(Kernel->db->db))
+    {
+        /* Check if database if the head of the hash list. */
+        if (Kernel->db->db[Database->slot] == Database)
+        {
+            /* Remove the database from the hash list. */
+            Kernel->db->db[Database->slot] = Database->next;
+        }
+        else
+        {
+            /* Walk the has list to find the database. */
+            for (database = Kernel->db->db[Database->slot];
+                 database != gcvNULL;
+                 database = database->next
+            )
+            {
+                /* Check if the next list entry is this database. */
+                if (database->next == Database)
+                {
+                    /* Remove the database from the hash list. */
+                    database->next = Database->next;
+                    break;
+                }
+            }
+
+            if (database == gcvNULL)
+            {
+                /* Ouch!  Something got corrupted. */
+                gcmkONERROR(gcvSTATUS_INVALID_DATA);
+            }
+        }
+    }
+
+    if (Kernel->db->lastDatabase != gcvNULL)
+    {
+        /* Insert database to the free list. */
+        Kernel->db->lastDatabase->next = Kernel->db->freeDatabase;
+        Kernel->db->freeDatabase       = Kernel->db->lastDatabase;
+    }
+
+    /* Keep database as the last database. */
+    Kernel->db->lastDatabase = Database;
+
+    /* Destory handle db. */
+    gcmkVERIFY_OK(gckKERNEL_DestroyIntegerDatabase(Kernel, Database->handleDatabase));
+    Database->handleDatabase = gcvNULL;
+    gcmkVERIFY_OK(gckOS_DeleteMutex(Kernel->os, Database->handleDatabaseMutex));
+    Database->handleDatabaseMutex = gcvNULL;
+
+#if gcdPROCESS_ADDRESS_SPACE
+    /* Destory process MMU. */
+    gcmkVERIFY_OK(gckEVENT_DestroyMmu(Kernel->eventObj, Database->mmu, gcvKERNEL_PIXEL));
+    Database->mmu = gcvNULL;
+#endif
+
+    /* Release the database mutex. */
+    gcmkONERROR(gckOS_ReleaseMutex(Kernel->os, Kernel->db->dbMutex));
+
+    /* Success. */
+    gcmkFOOTER_NO();
+    return gcvSTATUS_OK;
+
+OnError:
+    if (acquired)
+    {
+        /* Release the database mutex. */
+        gcmkVERIFY_OK(gckOS_ReleaseMutex(Kernel->os, Kernel->db->dbMutex));
+    }
+
+    /* Return the status. */
+    gcmkFOOTER();
+    return status;
+}
+
+/*******************************************************************************
+**  gckKERNEL_NewRecord
+**
+**  Create a new database record structure and insert it to the head of the
+**  database.
+**
+**  INPUT:
+**
+**      gckKERNEL Kernel
+**          Pointer to a gckKERNEL object.
+**
+**      gcsDATABASE_PTR Database
+**          Pointer to a database structure.
+**
+**  OUTPUT:
+**
+**      gcsDATABASE_RECORD_PTR * Record
+**          Pointer to a variable receiving the database record structure
+**          pointer on success.
+*/
+static gceSTATUS
+gckKERNEL_NewRecord(
+    IN gckKERNEL Kernel,
+    IN gcsDATABASE_PTR Database,
+    IN gctUINT32 Slot,
+    OUT gcsDATABASE_RECORD_PTR * Record
+    )
+{
+    gceSTATUS status;
+    gctBOOL acquired = gcvFALSE;
+    gcsDATABASE_RECORD_PTR record = gcvNULL;
+
+    gcmkHEADER_ARG("Kernel=0x%x Database=0x%x", Kernel, Database);
+
+    /* Acquire the database mutex. */
+    gcmkONERROR(
+        gckOS_AcquireMutex(Kernel->os, Kernel->db->dbMutex, gcvINFINITE));
+    acquired = gcvTRUE;
+
+    if (Kernel->db->freeRecord != gcvNULL)
+    {
+        /* Allocate the record from the free list. */
+        record             = Kernel->db->freeRecord;
+        Kernel->db->freeRecord = record->next;
+    }
+    else
+    {
+        gctPOINTER pointer = gcvNULL;
+
+        /* Allocate the record from the heap. */
+        gcmkONERROR(gckOS_Allocate(Kernel->os,
+                                   gcmSIZEOF(gcsDATABASE_RECORD),
+                                   &pointer));
+
+        record = pointer;
+    }
+
+    /* Insert the record in the database. */
+    record->next         = Database->list[Slot];
+    Database->list[Slot] = record;
+
+    /* Release the database mutex. */
+    gcmkONERROR(gckOS_ReleaseMutex(Kernel->os, Kernel->db->dbMutex));
+
+    /* Return the record. */
+    *Record = record;
+
+    /* Success. */
+    gcmkFOOTER_ARG("*Record=0x%x", *Record);
+    return gcvSTATUS_OK;
+
+OnError:
+    if (acquired)
+    {
+        /* Release the database mutex. */
+        gcmkVERIFY_OK(gckOS_ReleaseMutex(Kernel->os, Kernel->db->dbMutex));
+    }
+    if (record != gcvNULL)
+    {
+        gcmkVERIFY_OK(gcmkOS_SAFE_FREE(Kernel->os, record));
+    }
+
+    /* Return the status. */
+    gcmkFOOTER();
+    return status;
+}
+
+/*******************************************************************************
+**  gckKERNEL_DeleteRecord
+**
+**  Remove a database record from the database and delete its structure.
+**
+**  INPUT:
+**
+**      gckKERNEL Kernel
+**          Pointer to a gckKERNEL object.
+**
+**      gcsDATABASE_PTR Database
+**          Pointer to a database structure.
+**
+**      gceDATABASE_TYPE Type
+**          Type of the record to remove.
+**
+**      gctPOINTER Data
+**          Data of the record to remove.
+**
+**  OUTPUT:
+**
+**      gctSIZE_T_PTR Bytes
+**          Pointer to a variable that receives the size of the record deleted.
+**          Can be gcvNULL if the size is not required.
+*/
+static gceSTATUS
+gckKERNEL_DeleteRecord(
+    IN gckKERNEL Kernel,
+    IN gcsDATABASE_PTR Database,
+    IN gceDATABASE_TYPE Type,
+    IN gctPOINTER Data,
+    OUT gctSIZE_T_PTR Bytes OPTIONAL
+    )
+{
+    gceSTATUS status;
+    gctBOOL acquired = gcvFALSE;
+    gcsDATABASE_RECORD_PTR record, previous;
+    gctUINT32 slot = _GetSlot(Database, Data);
+
+    gcmkHEADER_ARG("Kernel=0x%x Database=0x%x Type=%d Data=0x%x",
+                   Kernel, Database, Type, Data);
+
+    /* Acquire the database mutex. */
+    gcmkONERROR(
+        gckOS_AcquireMutex(Kernel->os, Kernel->db->dbMutex, gcvINFINITE));
+    acquired = gcvTRUE;
+
+    /* Scan the database for this record. */
+    for (record = Database->list[slot], previous = gcvNULL;
+         record != gcvNULL;
+         record = record->next
+    )
+    {
+        if ((record->type == Type)
+        &&  (record->data == Data)
+        )
+        {
+            /* Found it! */
+            break;
+        }
+
+        previous = record;
+    }
+
+    if (record == gcvNULL)
+    {
+        /* Ouch!  This record is not found? */
+        gcmkONERROR(gcvSTATUS_INVALID_DATA);
+    }
+
+    if (Bytes != gcvNULL)
+    {
+        /* Return size of record. */
+        *Bytes = record->bytes;
+    }
+
+    /* Remove record from database. */
+    if (previous == gcvNULL)
+    {
+        Database->list[slot] = record->next;
+    }
+    else
+    {
+        previous->next = record->next;
+    }
+
+    /* Insert record in free list. */
+    record->next       = Kernel->db->freeRecord;
+    Kernel->db->freeRecord = record;
+
+    /* Release the database mutex. */
+    gcmkONERROR(gckOS_ReleaseMutex(Kernel->os, Kernel->db->dbMutex));
+
+    /* Success. */
+    gcmkFOOTER_ARG("*Bytes=%lu", gcmOPT_VALUE(Bytes));
+    return gcvSTATUS_OK;
+
+OnError:
+    if (acquired)
+    {
+        /* Release the database mutex. */
+        gcmkVERIFY_OK(gckOS_ReleaseMutex(Kernel->os, Kernel->db->dbMutex));
+    }
+
+    /* Return the status. */
+    gcmkFOOTER();
+    return status;
+}
+
+/*******************************************************************************
+**  gckKERNEL_FindRecord
+**
+**  Find a database record from the database.
+**
+**  INPUT:
+**
+**      gckKERNEL Kernel
+**          Pointer to a gckKERNEL object.
+**
+**      gcsDATABASE_PTR Database
+**          Pointer to a database structure.
+**
+**      gceDATABASE_TYPE Type
+**          Type of the record to remove.
+**
+**      gctPOINTER Data
+**          Data of the record to remove.
+**
+**  OUTPUT:
+**
+**      gctSIZE_T_PTR Bytes
+**          Pointer to a variable that receives the size of the record deleted.
+**          Can be gcvNULL if the size is not required.
+*/
+static gceSTATUS
+gckKERNEL_FindRecord(
+    IN gckKERNEL Kernel,
+    IN gcsDATABASE_PTR Database,
+    IN gceDATABASE_TYPE Type,
+    IN gctPOINTER Data,
+    OUT gcsDATABASE_RECORD_PTR Record
+    )
+{
+    gceSTATUS status;
+    gctBOOL acquired = gcvFALSE;
+    gcsDATABASE_RECORD_PTR record;
+    gctUINT32 slot = _GetSlot(Database, Data);
+
+    gcmkHEADER_ARG("Kernel=0x%x Database=0x%x Type=%d Data=0x%x",
+                   Kernel, Database, Type, Data);
+
+    /* Acquire the database mutex. */
+    gcmkONERROR(
+        gckOS_AcquireMutex(Kernel->os, Kernel->db->dbMutex, gcvINFINITE));
+    acquired = gcvTRUE;
+
+    /* Scan the database for this record. */
+    for (record = Database->list[slot];
+         record != gcvNULL;
+         record = record->next
+    )
+    {
+        if ((record->type == Type)
+        &&  (record->data == Data)
+        )
+        {
+            /* Found it! */
+            break;
+        }
+    }
+
+    if (record == gcvNULL)
+    {
+        /* Ouch!  This record is not found? */
+        gcmkONERROR(gcvSTATUS_INVALID_DATA);
+    }
+
+    if (Record != gcvNULL)
+    {
+        /* Return information of record. */
+        gcmkONERROR(
+            gckOS_MemCopy(Record, record, sizeof(gcsDATABASE_RECORD)));
+    }
+
+    /* Release the database mutex. */
+    gcmkONERROR(gckOS_ReleaseMutex(Kernel->os, Kernel->db->dbMutex));
+
+    /* Success. */
+    gcmkFOOTER_ARG("Record=0x%x", Record);
+    return gcvSTATUS_OK;
+
+OnError:
+    if (acquired)
+    {
+        /* Release the database mutex. */
+        gcmkVERIFY_OK(gckOS_ReleaseMutex(Kernel->os, Kernel->db->dbMutex));
+    }
+
+    /* Return the status. */
+    gcmkFOOTER();
+    return status;
+}
+
+/*******************************************************************************
+***** Public API **************************************************************/
+
+/*******************************************************************************
+**  gckKERNEL_CreateProcessDB
+**
+**  Create a new process database.
+**
+**  INPUT:
+**
+**      gckKERNEL Kernel
+**          Pointer to a gckKERNEL object.
+**
+**      gctUINT32 ProcessID
+**          Process ID used to identify the database.
+**
+**  OUTPUT:
+**
+**      Nothing.
+*/
+gceSTATUS
+gckKERNEL_CreateProcessDB(
+    IN gckKERNEL Kernel,
+    IN gctUINT32 ProcessID
+    )
+{
+    gceSTATUS status;
+    gcsDATABASE_PTR database = gcvNULL;
+    gctUINT32 i;
+
+    gcmkHEADER_ARG("Kernel=0x%x ProcessID=%d", Kernel, ProcessID);
+
+    /* Verify the arguments. */
+    gcmkVERIFY_OBJECT(Kernel, gcvOBJ_KERNEL);
+
+    /* Create a new database. */
+    gcmkONERROR(gckKERNEL_NewDatabase(Kernel, ProcessID, &database));
+
+    /* Initialize the database. */
+    database->processID             = ProcessID;
+    database->vidMem.bytes          = 0;
+    database->vidMem.maxBytes       = 0;
+    database->vidMem.totalBytes     = 0;
+    database->nonPaged.bytes        = 0;
+    database->nonPaged.maxBytes     = 0;
+    database->nonPaged.totalBytes   = 0;
+    database->contiguous.bytes      = 0;
+    database->contiguous.maxBytes   = 0;
+    database->contiguous.totalBytes = 0;
+    database->mapMemory.bytes          = 0;
+    database->mapMemory.maxBytes       = 0;
+    database->mapMemory.totalBytes     = 0;
+    database->mapUserMemory.bytes      = 0;
+    database->mapUserMemory.maxBytes   = 0;
+    database->mapUserMemory.totalBytes = 0;
+    database->virtualCommandBuffer.bytes = 0;
+    database->virtualCommandBuffer.maxBytes = 0;
+    database->virtualCommandBuffer.totalBytes = 0;
+
+    for (i = 0; i < gcmCOUNTOF(database->list); i++)
+    {
+        database->list[i]              = gcvNULL;
+    }
+
+    for (i = 0; i < gcvSURF_NUM_TYPES; i++)
+    {
+        database->vidMemType[i].bytes = 0;
+        database->vidMemType[i].maxBytes = 0;
+        database->vidMemType[i].totalBytes = 0;
+    }
+
+    for (i = 0; i < gcvPOOL_NUMBER_OF_POOLS; i++)
+    {
+        database->vidMemPool[i].bytes = 0;
+        database->vidMemPool[i].maxBytes = 0;
+        database->vidMemPool[i].totalBytes = 0;
+    }
+
+    gcmkASSERT(database->handleDatabase == gcvNULL);
+    gcmkONERROR(
+        gckKERNEL_CreateIntegerDatabase(Kernel, &database->handleDatabase));
+
+    gcmkASSERT(database->handleDatabaseMutex == gcvNULL);
+    gcmkONERROR(
+        gckOS_CreateMutex(Kernel->os, &database->handleDatabaseMutex));
+
+#if gcdPROCESS_ADDRESS_SPACE
+    gcmkASSERT(database->mmu == gcvNULL);
+    gcmkONERROR(
+        gckMMU_Construct(Kernel, gcdMMU_SIZE, &database->mmu));
+#endif
+
+#if gcdSECURE_USER
+    {
+        gctINT slot;
+        gcskSECURE_CACHE * cache = &database->cache;
+
+        /* Setup the linked list of cache nodes. */
+        for (slot = 1; slot <= gcdSECURE_CACHE_SLOTS; ++slot)
+        {
+            cache->cache[slot].logical = gcvNULL;
+
+#if gcdSECURE_CACHE_METHOD != gcdSECURE_CACHE_TABLE
+            cache->cache[slot].prev = &cache->cache[slot - 1];
+            cache->cache[slot].next = &cache->cache[slot + 1];
+#   endif
+#if gcdSECURE_CACHE_METHOD == gcdSECURE_CACHE_HASH
+            cache->cache[slot].nextHash = gcvNULL;
+            cache->cache[slot].prevHash = gcvNULL;
+#   endif
+        }
+
+#if gcdSECURE_CACHE_METHOD != gcdSECURE_CACHE_TABLE
+        /* Setup the head and tail of the cache. */
+        cache->cache[0].next    = &cache->cache[1];
+        cache->cache[0].prev    = &cache->cache[gcdSECURE_CACHE_SLOTS];
+        cache->cache[0].logical = gcvNULL;
+
+        /* Fix up the head and tail pointers. */
+        cache->cache[0].next->prev = &cache->cache[0];
+        cache->cache[0].prev->next = &cache->cache[0];
+#   endif
+
+#if gcdSECURE_CACHE_METHOD == gcdSECURE_CACHE_HASH
+        /* Zero out the hash table. */
+        for (slot = 0; slot < gcmCOUNTOF(cache->hash); ++slot)
+        {
+            cache->hash[slot].logical  = gcvNULL;
+            cache->hash[slot].nextHash = gcvNULL;
+        }
+#   endif
+
+        /* Initialize cache index. */
+        cache->cacheIndex = gcvNULL;
+        cache->cacheFree  = 1;
+        cache->cacheStamp = 0;
+    }
+#endif
+
+    /* Reset idle timer. */
+    Kernel->db->lastIdle = 0;
+
+    /* Success. */
+    gcmkFOOTER_NO();
+    return gcvSTATUS_OK;
+
+OnError:
+    /* Return the status. */
+    gcmkFOOTER();
+    return status;
+}
+
+/*******************************************************************************
+**  gckKERNEL_AddProcessDB
+**
+**  Add a record to a process database.
+**
+**  INPUT:
+**
+**      gckKERNEL Kernel
+**          Pointer to a gckKERNEL object.
+**
+**      gctUINT32 ProcessID
+**          Process ID used to identify the database.
+**
+**      gceDATABASE_TYPE TYPE
+**          Type of the record to add.
+**
+**      gctPOINTER Pointer
+**          Data of the record to add.
+**
+**      gctPHYS_ADDR Physical
+**          Physical address of the record to add.
+**
+**      gctSIZE_T Size
+**          Size of the record to add.
+**
+**  OUTPUT:
+**
+**      Nothing.
+*/
+gceSTATUS
+gckKERNEL_AddProcessDB(
+    IN gckKERNEL Kernel,
+    IN gctUINT32 ProcessID,
+    IN gceDATABASE_TYPE Type,
+    IN gctPOINTER Pointer,
+    IN gctPHYS_ADDR Physical,
+    IN gctSIZE_T Size
+    )
+{
+    gceSTATUS status;
+    gcsDATABASE_PTR database;
+    gcsDATABASE_RECORD_PTR record = gcvNULL;
+    gcsDATABASE_COUNTERS * count;
+    gctUINT32 vidMemType;
+    gcePOOL vidMemPool;
+
+    gcmkHEADER_ARG("Kernel=0x%x ProcessID=%d Type=%d Pointer=0x%x "
+                   "Physical=0x%x Size=%lu",
+                   Kernel, ProcessID, Type, Pointer, Physical, Size);
+
+    /* Verify the arguments. */
+    gcmkVERIFY_OBJECT(Kernel, gcvOBJ_KERNEL);
+
+    /* Decode type. */
+    vidMemType = (Type & gcdDB_VIDEO_MEMORY_TYPE_MASK) >> gcdDB_VIDEO_MEMORY_TYPE_SHIFT;
+    vidMemPool = (Type & gcdDB_VIDEO_MEMORY_POOL_MASK) >> gcdDB_VIDEO_MEMORY_POOL_SHIFT;
+
+    Type &= gcdDATABASE_TYPE_MASK;
+
+    /* Special case the idle record. */
+    if (Type == gcvDB_IDLE)
+    {
+        gctUINT64 time;
+
+        /* Get the current profile time. */
+        gcmkONERROR(gckOS_GetProfileTick(&time));
+
+        if ((ProcessID == 0) && (Kernel->db->lastIdle != 0))
+        {
+            /* Out of idle, adjust time it was idle. */
+            Kernel->db->idleTime += time - Kernel->db->lastIdle;
+            Kernel->db->lastIdle  = 0;
+        }
+        else if (ProcessID == 1)
+        {
+            /* Save current idle time. */
+            Kernel->db->lastIdle = time;
+        }
+
+#if gcdDYNAMIC_SPEED
+        {
+            /* Test for first call. */
+            if (Kernel->db->lastSlowdown == 0)
+            {
+                /* Save milliseconds. */
+                Kernel->db->lastSlowdown     = time;
+                Kernel->db->lastSlowdownIdle = Kernel->db->idleTime;
+            }
+            else
+            {
+                /* Compute ellapsed time in milliseconds. */
+                gctUINT delta = gckOS_ProfileToMS(time - Kernel->db->lastSlowdown);
+
+                /* Test for end of period. */
+                if (delta >= gcdDYNAMIC_SPEED)
+                {
+                    /* Compute number of idle milliseconds. */
+                    gctUINT idle = gckOS_ProfileToMS(
+                        Kernel->db->idleTime  - Kernel->db->lastSlowdownIdle);
+
+                    /* Broadcast to slow down the GPU. */
+                    gcmkONERROR(gckOS_BroadcastCalibrateSpeed(Kernel->os,
+                                                              Kernel->hardware,
+                                                              idle,
+                                                              delta));
+
+                    /* Save current time. */
+                    Kernel->db->lastSlowdown     = time;
+                    Kernel->db->lastSlowdownIdle = Kernel->db->idleTime;
+                }
+            }
+        }
+#endif
+
+        /* Success. */
+        gcmkFOOTER_NO();
+        return gcvSTATUS_OK;
+    }
+
+    /* Verify the arguments. */
+    gcmkVERIFY_ARGUMENT(Pointer != gcvNULL);
+
+    /* Find the database. */
+    gcmkONERROR(gckKERNEL_FindDatabase(Kernel, ProcessID, gcvFALSE, &database));
+
+    /* Create a new record in the database. */
+    gcmkONERROR(gckKERNEL_NewRecord(Kernel, database, _GetSlot(database, Pointer), &record));
+
+    /* Initialize the record. */
+    record->kernel   = Kernel;
+    record->type     = Type;
+    record->data     = Pointer;
+    record->physical = Physical;
+    record->bytes    = Size;
+
+    /* Get pointer to counters. */
+    switch (Type)
+    {
+    case gcvDB_VIDEO_MEMORY:
+        count = &database->vidMem;
+        break;
+
+    case gcvDB_NON_PAGED:
+        count = &database->nonPaged;
+        break;
+
+    case gcvDB_CONTIGUOUS:
+        count = &database->contiguous;
+        break;
+
+    case gcvDB_MAP_MEMORY:
+        count = &database->mapMemory;
+        break;
+
+    case gcvDB_MAP_USER_MEMORY:
+        count = &database->mapUserMemory;
+        break;
+
+    case gcvDB_COMMAND_BUFFER:
+        count = &database->virtualCommandBuffer;
+        break;
+
+    default:
+        count = gcvNULL;
+        break;
+    }
+
+    gcmkVERIFY_OK(gckOS_AcquireMutex(Kernel->os, database->counterMutex, gcvINFINITE));
+
+    if (count != gcvNULL)
+    {
+        /* Adjust counters. */
+        count->totalBytes += Size;
+        count->bytes      += Size;
+        count->allocCount++;
+
+        if (count->bytes > count->maxBytes)
+        {
+            count->maxBytes = count->bytes;
+        }
+    }
+
+    if (Type == gcvDB_VIDEO_MEMORY)
+    {
+        count = &database->vidMemType[vidMemType];
+
+        /* Adjust counters. */
+        count->totalBytes += Size;
+        count->bytes      += Size;
+        count->allocCount++;
+
+        if (count->bytes > count->maxBytes)
+        {
+            count->maxBytes = count->bytes;
+        }
+
+        count = &database->vidMemPool[vidMemPool];
+
+        /* Adjust counters. */
+        count->totalBytes += Size;
+        count->bytes      += Size;
+        count->allocCount++;
+
+        if (count->bytes > count->maxBytes)
+        {
+            count->maxBytes = count->bytes;
+        }
+    }
+
+    gcmkVERIFY_OK(gckOS_ReleaseMutex(Kernel->os, database->counterMutex));
+
+    /* Success. */
+    gcmkFOOTER_NO();
+    return gcvSTATUS_OK;
+
+OnError:
+    /* Return the status. */
+    gcmkFOOTER();
+    return status;
+}
+
+/*******************************************************************************
+**  gckKERNEL_RemoveProcessDB
+**
+**  Remove a record from a process database.
+**
+**  INPUT:
+**
+**      gckKERNEL Kernel
+**          Pointer to a gckKERNEL object.
+**
+**      gctUINT32 ProcessID
+**          Process ID used to identify the database.
+**
+**      gceDATABASE_TYPE TYPE
+**          Type of the record to remove.
+**
+**      gctPOINTER Pointer
+**          Data of the record to remove.
+**
+**  OUTPUT:
+**
+**      Nothing.
+*/
+gceSTATUS
+gckKERNEL_RemoveProcessDB(
+    IN gckKERNEL Kernel,
+    IN gctUINT32 ProcessID,
+    IN gceDATABASE_TYPE Type,
+    IN gctPOINTER Pointer
+    )
+{
+    gceSTATUS status;
+    gcsDATABASE_PTR database;
+    gctSIZE_T bytes = 0;
+    gctUINT32 vidMemType;
+    gcePOOL vidMempool;
+
+    gcmkHEADER_ARG("Kernel=0x%x ProcessID=%d Type=%d Pointer=0x%x",
+                   Kernel, ProcessID, Type, Pointer);
+
+    /* Verify the arguments. */
+    gcmkVERIFY_OBJECT(Kernel, gcvOBJ_KERNEL);
+    gcmkVERIFY_ARGUMENT(Pointer != gcvNULL);
+
+    /* Decode type. */
+    vidMemType = (Type & gcdDB_VIDEO_MEMORY_TYPE_MASK) >> gcdDB_VIDEO_MEMORY_TYPE_SHIFT;
+    vidMempool = (Type & gcdDB_VIDEO_MEMORY_POOL_MASK) >> gcdDB_VIDEO_MEMORY_POOL_SHIFT;
+
+    Type &= gcdDATABASE_TYPE_MASK;
+
+    /* Find the database. */
+    gcmkONERROR(gckKERNEL_FindDatabase(Kernel, ProcessID, gcvFALSE, &database));
+
+    /* Delete the record. */
+    gcmkONERROR(
+        gckKERNEL_DeleteRecord(Kernel, database, Type, Pointer, &bytes));
+
+    gcmkVERIFY_OK(gckOS_AcquireMutex(Kernel->os, database->counterMutex, gcvINFINITE));
+
+    /* Update counters. */
+    switch (Type)
+    {
+    case gcvDB_VIDEO_MEMORY:
+        database->vidMem.bytes -= bytes;
+        database->vidMem.freeCount++;
+        database->vidMemType[vidMemType].bytes -= bytes;
+        database->vidMemType[vidMemType].freeCount++;
+        database->vidMemPool[vidMempool].bytes -= bytes;
+        database->vidMemPool[vidMempool].freeCount++;
+        break;
+
+    case gcvDB_NON_PAGED:
+        database->nonPaged.bytes -= bytes;
+        database->nonPaged.freeCount++;
+        break;
+
+    case gcvDB_CONTIGUOUS:
+        database->contiguous.bytes -= bytes;
+        database->contiguous.freeCount++;
+        break;
+
+    case gcvDB_MAP_MEMORY:
+        database->mapMemory.bytes -= bytes;
+        database->mapMemory.freeCount++;
+        break;
+
+    case gcvDB_MAP_USER_MEMORY:
+        database->mapUserMemory.bytes -= bytes;
+        database->mapUserMemory.freeCount++;
+        break;
+
+    case gcvDB_COMMAND_BUFFER:
+        database->virtualCommandBuffer.bytes -= bytes;
+        database->virtualCommandBuffer.freeCount++;
+        break;
+
+    default:
+        break;
+    }
+
+    gcmkVERIFY_OK(gckOS_ReleaseMutex(Kernel->os, database->counterMutex));
+
+    /* Success. */
+    gcmkFOOTER_NO();
+    return gcvSTATUS_OK;
+
+OnError:
+    /* Return the status. */
+    gcmkFOOTER();
+    return status;
+}
+
+/*******************************************************************************
+**  gckKERNEL_FindProcessDB
+**
+**  Find a record from a process database.
+**
+**  INPUT:
+**
+**      gckKERNEL Kernel
+**          Pointer to a gckKERNEL object.
+**
+**      gctUINT32 ProcessID
+**          Process ID used to identify the database.
+**
+**      gceDATABASE_TYPE TYPE
+**          Type of the record to remove.
+**
+**      gctPOINTER Pointer
+**          Data of the record to remove.
+**
+**  OUTPUT:
+**
+**      gcsDATABASE_RECORD_PTR Record
+**          Copy of record.
+*/
+gceSTATUS
+gckKERNEL_FindProcessDB(
+    IN gckKERNEL Kernel,
+    IN gctUINT32 ProcessID,
+    IN gctUINT32 ThreadID,
+    IN gceDATABASE_TYPE Type,
+    IN gctPOINTER Pointer,
+    OUT gcsDATABASE_RECORD_PTR Record
+    )
+{
+    gceSTATUS status;
+    gcsDATABASE_PTR database;
+
+    gcmkHEADER_ARG("Kernel=0x%x ProcessID=%d Type=%d Pointer=0x%x",
+                   Kernel, ProcessID, ThreadID, Type, Pointer);
+
+    /* Verify the arguments. */
+    gcmkVERIFY_OBJECT(Kernel, gcvOBJ_KERNEL);
+    gcmkVERIFY_ARGUMENT(Pointer != gcvNULL);
+
+    /* Find the database. */
+    gcmkONERROR(gckKERNEL_FindDatabase(Kernel, ProcessID, gcvFALSE, &database));
+
+    /* Find the record. */
+    gcmkONERROR(
+        gckKERNEL_FindRecord(Kernel, database, Type, Pointer, Record));
+
+    /* Success. */
+    gcmkFOOTER_NO();
+    return gcvSTATUS_OK;
+
+OnError:
+    /* Return the status. */
+    gcmkFOOTER();
+    return status;
+}
+
+/*******************************************************************************
+**  gckKERNEL_DestroyProcessDB
+**
+**  Destroy a process database.  If the database contains any records, the data
+**  inside those records will be deleted as well.  This aids in the cleanup if
+**  a process has died unexpectedly or has memory leaks.
+**
+**  INPUT:
+**
+**      gckKERNEL Kernel
+**          Pointer to a gckKERNEL object.
+**
+**      gctUINT32 ProcessID
+**          Process ID used to identify the database.
+**
+**  OUTPUT:
+**
+**      Nothing.
+*/
+gceSTATUS
+gckKERNEL_DestroyProcessDB(
+    IN gckKERNEL Kernel,
+    IN gctUINT32 ProcessID
+    )
+{
+    gceSTATUS status;
+    gcsDATABASE_PTR database;
+    gcsDATABASE_RECORD_PTR record, next;
+    gctBOOL asynchronous = gcvTRUE;
+    gckVIDMEM_NODE nodeObject;
+    gctPHYS_ADDR physical;
+    gckKERNEL kernel = Kernel;
+    gctUINT32 handle;
+    gctUINT32 i;
+
+    gcmkHEADER_ARG("Kernel=0x%x ProcessID=%d", Kernel, ProcessID);
+
+    /* Verify the arguments. */
+    gcmkVERIFY_OBJECT(Kernel, gcvOBJ_KERNEL);
+
+    /* Find the database. */
+    gcmkONERROR(gckKERNEL_FindDatabase(Kernel, ProcessID, gcvFALSE, &database));
+
+    gcmkTRACE_ZONE(gcvLEVEL_INFO, gcvZONE_DATABASE,
+                   "DB(%d): VidMem: total=%lu max=%lu",
+                   ProcessID, database->vidMem.totalBytes,
+                   database->vidMem.maxBytes);
+    gcmkTRACE_ZONE(gcvLEVEL_INFO, gcvZONE_DATABASE,
+                   "DB(%d): NonPaged: total=%lu max=%lu",
+                   ProcessID, database->nonPaged.totalBytes,
+                   database->nonPaged.maxBytes);
+    gcmkTRACE_ZONE(gcvLEVEL_INFO, gcvZONE_DATABASE,
+                   "DB(%d): Contiguous: total=%lu max=%lu",
+                   ProcessID, database->contiguous.totalBytes,
+                   database->contiguous.maxBytes);
+    gcmkTRACE_ZONE(gcvLEVEL_INFO, gcvZONE_DATABASE,
+                   "DB(%d): Idle time=%llu",
+                   ProcessID, Kernel->db->idleTime);
+    gcmkTRACE_ZONE(gcvLEVEL_INFO, gcvZONE_DATABASE,
+                   "DB(%d): Map: total=%lu max=%lu",
+                   ProcessID, database->mapMemory.totalBytes,
+                   database->mapMemory.maxBytes);
+    gcmkTRACE_ZONE(gcvLEVEL_INFO, gcvZONE_DATABASE,
+                   "DB(%d): Map: total=%lu max=%lu",
+                   ProcessID, database->mapUserMemory.totalBytes,
+                   database->mapUserMemory.maxBytes);
+
+    if (database->list != gcvNULL)
+    {
+        gcmkTRACE_ZONE(gcvLEVEL_WARNING, gcvZONE_DATABASE,
+                       "Process %d has entries in its database:",
+                       ProcessID);
+    }
+
+    for(i = 0; i < gcmCOUNTOF(database->list); i++)
+    {
+
+    /* Walk all records. */
+    for (record = database->list[i]; record != gcvNULL; record = next)
+    {
+        /* Next next record. */
+        next = record->next;
+
+        /* Dispatch on record type. */
+        switch (record->type)
+        {
+        case gcvDB_VIDEO_MEMORY:
+            gcmkERR_BREAK(gckVIDMEM_HANDLE_Lookup(record->kernel,
+                                                  ProcessID,
+                                                  gcmPTR2INT32(record->data),
+                                                  &nodeObject));
+
+            /* Free the video memory. */
+            gcmkVERIFY_OK(gckVIDMEM_HANDLE_Dereference(record->kernel,
+                                                       ProcessID,
+                                                       gcmPTR2INT32(record->data)));
+
+            gcmkVERIFY_OK(gckVIDMEM_NODE_Dereference(record->kernel,
+                                                     nodeObject));
+
+            gcmkTRACE_ZONE(gcvLEVEL_WARNING, gcvZONE_DATABASE,
+                           "DB: VIDEO_MEMORY 0x%x (status=%d)",
+                           record->data, status);
+            break;
+
+        case gcvDB_NON_PAGED:
+            physical = gcmNAME_TO_PTR(record->physical);
+            /* Unmap user logical memory first. */
+            status = gckOS_UnmapUserLogical(Kernel->os,
+                                            physical,
+                                            record->bytes,
+                                            record->data);
+
+            /* Free the non paged memory. */
+            status = gckEVENT_FreeNonPagedMemory(Kernel->eventObj,
+                                                 record->bytes,
+                                                 physical,
+                                                 record->data,
+                                                 gcvKERNEL_PIXEL);
+            gcmRELEASE_NAME(record->physical);
+
+            gcmkTRACE_ZONE(gcvLEVEL_WARNING, gcvZONE_DATABASE,
+                           "DB: NON_PAGED 0x%x, bytes=%lu (status=%d)",
+                           record->data, record->bytes, status);
+            break;
+
+        case gcvDB_COMMAND_BUFFER:
+            /* Free the command buffer. */
+            status = gckEVENT_DestroyVirtualCommandBuffer(record->kernel->eventObj,
+                                                          record->bytes,
+                                                          gcmNAME_TO_PTR(record->physical),
+                                                          record->data,
+                                                          gcvKERNEL_PIXEL);
+            gcmRELEASE_NAME(record->physical);
+
+            gcmkTRACE_ZONE(gcvLEVEL_WARNING, gcvZONE_DATABASE,
+                           "DB: COMMAND_BUFFER 0x%x, bytes=%lu (status=%d)",
+                           record->data, record->bytes, status);
+            break;
+
+        case gcvDB_CONTIGUOUS:
+            physical = gcmNAME_TO_PTR(record->physical);
+            /* Unmap user logical memory first. */
+            status = gckOS_UnmapUserLogical(Kernel->os,
+                                            physical,
+                                            record->bytes,
+                                            record->data);
+
+            /* Free the contiguous memory. */
+            status = gckEVENT_FreeContiguousMemory(Kernel->eventObj,
+                                                   record->bytes,
+                                                   physical,
+                                                   record->data,
+                                                   gcvKERNEL_PIXEL);
+            gcmRELEASE_NAME(record->physical);
+
+            gcmkTRACE_ZONE(gcvLEVEL_WARNING, gcvZONE_DATABASE,
+                           "DB: CONTIGUOUS 0x%x bytes=%lu (status=%d)",
+                           record->data, record->bytes, status);
+            break;
+
+        case gcvDB_SIGNAL:
+#if USE_NEW_LINUX_SIGNAL
+            status = gcvSTATUS_NOT_SUPPORTED;
+#else
+            /* Free the user signal. */
+            status = gckOS_DestroyUserSignal(Kernel->os,
+                                             gcmPTR2INT32(record->data));
+#endif /* USE_NEW_LINUX_SIGNAL */
+
+            gcmkTRACE_ZONE(gcvLEVEL_WARNING, gcvZONE_DATABASE,
+                           "DB: SIGNAL %d (status=%d)",
+                           (gctINT)(gctUINTPTR_T)record->data, status);
+            break;
+
+        case gcvDB_VIDEO_MEMORY_LOCKED:
+            handle = gcmPTR2INT32(record->data);
+
+            gcmkERR_BREAK(gckVIDMEM_HANDLE_Lookup(record->kernel,
+                                                  ProcessID,
+                                                  handle,
+                                                  &nodeObject));
+
+            /* Unlock what we still locked */
+            status = gckVIDMEM_Unlock(record->kernel,
+                                      nodeObject,
+                                      nodeObject->type,
+                                      &asynchronous);
+
+            {
+                gcmkVERIFY_OK(gckVIDMEM_HANDLE_Dereference(record->kernel,
+                                                           ProcessID,
+                                                           handle));
+
+                if (gcmIS_SUCCESS(status) && (gcvTRUE == asynchronous))
+                {
+                    status = gckEVENT_Unlock(record->kernel->eventObj,
+                                             gcvKERNEL_PIXEL,
+                                             nodeObject,
+                                             nodeObject->type);
+                }
+                else
+                {
+                    gcmkVERIFY_OK(gckVIDMEM_NODE_Dereference(record->kernel,
+                                                             nodeObject));
+                }
+            }
+
+            gcmkTRACE_ZONE(gcvLEVEL_WARNING, gcvZONE_DATABASE,
+                           "DB: VIDEO_MEMORY_LOCKED 0x%x (status=%d)",
+                           record->data, status);
+            break;
+
+        case gcvDB_CONTEXT:
+            /* TODO: Free the context */
+            status = gckCOMMAND_Detach(Kernel->command, gcmNAME_TO_PTR(record->data));
+            gcmRELEASE_NAME(record->data);
+
+            gcmkTRACE_ZONE(gcvLEVEL_WARNING, gcvZONE_DATABASE,
+                           "DB: CONTEXT 0x%x (status=%d)",
+                           record->data, status);
+            break;
+
+        case gcvDB_MAP_MEMORY:
+            /* Unmap memory. */
+            status = gckKERNEL_UnmapMemory(Kernel,
+                                           record->physical,
+                                           record->bytes,
+                                           record->data);
+
+            gcmkTRACE_ZONE(gcvLEVEL_WARNING, gcvZONE_DATABASE,
+                           "DB: MAP MEMORY %d (status=%d)",
+                           gcmPTR2INT32(record->data), status);
+            break;
+
+        case gcvDB_MAP_USER_MEMORY:
+            /* TODO: Unmap user memory. */
+            status = gckOS_UnmapUserMemory(Kernel->os,
+                                           Kernel->core,
+                                           record->physical,
+                                           record->bytes,
+                                           gcmNAME_TO_PTR(record->data),
+                                           0);
+            gcmRELEASE_NAME(record->data);
+
+            gcmkTRACE_ZONE(gcvLEVEL_WARNING, gcvZONE_DATABASE,
+                           "DB: MAP USER MEMORY %d (status=%d)",
+                           gcmPTR2INT32(record->data), status);
+            break;
+
+#if gcdANDROID_NATIVE_FENCE_SYNC
+        case gcvDB_SYNC_POINT:
+            /* Free the user signal. */
+            status = gckOS_DestroySyncPoint(Kernel->os,
+                                            (gctSYNC_POINT) record->data);
+
+            gcmkTRACE_ZONE(gcvLEVEL_WARNING, gcvZONE_DATABASE,
+                           "DB: SYNC POINT %d (status=%d)",
+                           (gctINT)(gctUINTPTR_T)record->data, status);
+            break;
+#endif
+
+        case gcvDB_SHBUF:
+            /* Free shared buffer. */
+            status = gckKERNEL_DestroyShBuffer(Kernel,
+                                               (gctSHBUF) record->data);
+
+            gcmkTRACE_ZONE(gcvLEVEL_WARNING, gcvZONE_DATABASE,
+                           "DB: SHBUF %u (status=%d)",
+                           (gctUINT32)(gctUINTPTR_T) record->data, status);
+            break;
+
+        default:
+            gcmkTRACE_ZONE(gcvLEVEL_ERROR, gcvZONE_DATABASE,
+                           "DB: Correcupted record=0x%08x type=%d",
+                           record, record->type);
+            break;
+        }
+
+        /* Delete the record. */
+        gcmkONERROR(gckKERNEL_DeleteRecord(Kernel,
+                                           database,
+                                           record->type,
+                                           record->data,
+                                           gcvNULL));
+    }
+
+    }
+
+    /* Delete the database. */
+    gcmkONERROR(gckKERNEL_DeleteDatabase(Kernel, database));
+
+    /* Success. */
+    gcmkFOOTER_NO();
+    return gcvSTATUS_OK;
+
+OnError:
+    /* Return the status. */
+    gcmkFOOTER();
+    return status;
+}
+
+/*******************************************************************************
+**  gckKERNEL_QueryProcessDB
+**
+**  Query a process database for the current usage of a particular record type.
+**
+**  INPUT:
+**
+**      gckKERNEL Kernel
+**          Pointer to a gckKERNEL object.
+**
+**      gctUINT32 ProcessID
+**          Process ID used to identify the database.
+**
+**      gctBOOL LastProcessID
+**          gcvTRUE if searching for the last known process ID.  gcvFALSE if
+**          we need to search for the process ID specified by the ProcessID
+**          argument.
+**
+**      gceDATABASE_TYPE Type
+**          Type of the record to query.
+**
+**  OUTPUT:
+**
+**      gcuDATABASE_INFO * Info
+**          Pointer to a variable that receives the requested information.
+*/
+gceSTATUS
+gckKERNEL_QueryProcessDB(
+    IN gckKERNEL Kernel,
+    IN gctUINT32 ProcessID,
+    IN gctBOOL LastProcessID,
+    IN gceDATABASE_TYPE Type,
+    OUT gcuDATABASE_INFO * Info
+    )
+{
+    gceSTATUS status;
+    gcsDATABASE_PTR database;
+    gcePOOL vidMemPool;
+
+    gcmkHEADER_ARG("Kernel=0x%x ProcessID=%d Type=%d Info=0x%x",
+                   Kernel, ProcessID, Type, Info);
+
+    /* Verify the arguments. */
+    gcmkVERIFY_OBJECT(Kernel, gcvOBJ_KERNEL);
+    gcmkVERIFY_ARGUMENT(Info != gcvNULL);
+
+    /* Deocde pool. */
+    vidMemPool = (Type & gcdDB_VIDEO_MEMORY_POOL_MASK) >> gcdDB_VIDEO_MEMORY_POOL_SHIFT;
+
+    Type &= gcdDATABASE_TYPE_MASK;
+
+    /* Find the database. */
+    gcmkONERROR(
+        gckKERNEL_FindDatabase(Kernel, ProcessID, LastProcessID, &database));
+
+
+    gcmkVERIFY_OK(gckOS_AcquireMutex(Kernel->os, database->counterMutex, gcvINFINITE));
+
+    /* Get pointer to counters. */
+    switch (Type)
+    {
+    case gcvDB_VIDEO_MEMORY:
+        if (vidMemPool != gcvPOOL_UNKNOWN)
+        {
+            gckOS_MemCopy(&Info->counters,
+                          &database->vidMemPool[vidMemPool],
+                          gcmSIZEOF(database->vidMemPool[vidMemPool]));
+        }
+        else
+        {
+            gckOS_MemCopy(&Info->counters,
+                          &database->vidMem,
+                          gcmSIZEOF(database->vidMem));
+        }
+        break;
+
+    case gcvDB_NON_PAGED:
+        gckOS_MemCopy(&Info->counters,
+                                  &database->nonPaged,
+                                  gcmSIZEOF(database->vidMem));
+        break;
+
+    case gcvDB_CONTIGUOUS:
+        gckOS_MemCopy(&Info->counters,
+                                  &database->contiguous,
+                                  gcmSIZEOF(database->vidMem));
+        break;
+
+    case gcvDB_IDLE:
+        Info->time           = Kernel->db->idleTime;
+        Kernel->db->idleTime = 0;
+        break;
+
+    case gcvDB_MAP_MEMORY:
+        gckOS_MemCopy(&Info->counters,
+                                  &database->mapMemory,
+                                  gcmSIZEOF(database->mapMemory));
+        break;
+
+    case gcvDB_MAP_USER_MEMORY:
+        gckOS_MemCopy(&Info->counters,
+                                  &database->mapUserMemory,
+                                  gcmSIZEOF(database->mapUserMemory));
+        break;
+
+    case gcvDB_COMMAND_BUFFER:
+        gckOS_MemCopy(&Info->counters,
+                                  &database->virtualCommandBuffer,
+                                  gcmSIZEOF(database->virtualCommandBuffer));
+        break;
+
+    default:
+        break;
+    }
+
+    gcmkVERIFY_OK(gckOS_ReleaseMutex(Kernel->os, database->counterMutex));
+
+    /* Success. */
+    gcmkFOOTER_NO();
+    return gcvSTATUS_OK;
+
+OnError:
+    /* Return the status. */
+    gcmkFOOTER();
+    return status;
+}
+
+gceSTATUS
+gckKERNEL_FindHandleDatbase(
+    IN gckKERNEL Kernel,
+    IN gctUINT32 ProcessID,
+    OUT gctPOINTER * HandleDatabase,
+    OUT gctPOINTER * HandleDatabaseMutex
+    )
+{
+    gceSTATUS status;
+    gcsDATABASE_PTR database;
+
+    gcmkHEADER_ARG("Kernel=0x%x ProcessID=%d",
+                   Kernel, ProcessID);
+
+    /* Verify the arguments. */
+    gcmkVERIFY_OBJECT(Kernel, gcvOBJ_KERNEL);
+
+    /* Find the database. */
+    gcmkONERROR(gckKERNEL_FindDatabase(Kernel, ProcessID, gcvFALSE, &database));
+
+    *HandleDatabase = database->handleDatabase;
+    *HandleDatabaseMutex = database->handleDatabaseMutex;
+
+    /* Success. */
+    gcmkFOOTER_NO();
+    return gcvSTATUS_OK;
+
+OnError:
+    /* Return the status. */
+    gcmkFOOTER();
+    return status;
+}
+
+#if gcdPROCESS_ADDRESS_SPACE
+gceSTATUS
+gckKERNEL_GetProcessMMU(
+    IN gckKERNEL Kernel,
+    OUT gckMMU * Mmu
+    )
+{
+    gceSTATUS status;
+    gcsDATABASE_PTR database;
+    gctUINT32 processID;
+
+    gcmkONERROR(gckOS_GetProcessID(&processID));
+
+    gcmkONERROR(gckKERNEL_FindDatabase(Kernel, processID, gcvFALSE, &database));
+
+    *Mmu = database->mmu;
+
+    return gcvSTATUS_OK;
+
+OnError:
+    return status;
+}
+#endif
+
+#if gcdSECURE_USER
+/*******************************************************************************
+**  gckKERNEL_GetProcessDBCache
+**
+**  Get teh secure cache from a process database.
+**
+**  INPUT:
+**
+**      gckKERNEL Kernel
+**          Pointer to a gckKERNEL object.
+**
+**      gctUINT32 ProcessID
+**          Process ID used to identify the database.
+**
+**  OUTPUT:
+**
+**      gcskSECURE_CACHE_PTR * Cache
+**          Pointer to a variable that receives the secure cache pointer.
+*/
+gceSTATUS
+gckKERNEL_GetProcessDBCache(
+    IN gckKERNEL Kernel,
+    IN gctUINT32 ProcessID,
+    OUT gcskSECURE_CACHE_PTR * Cache
+    )
+{
+    gceSTATUS status;
+    gcsDATABASE_PTR database;
+
+    gcmkHEADER_ARG("Kernel=0x%x ProcessID=%d", Kernel, ProcessID);
+
+    /* Verify the arguments. */
+    gcmkVERIFY_OBJECT(Kernel, gcvOBJ_KERNEL);
+    gcmkVERIFY_ARGUMENT(Cache != gcvNULL);
+
+    /* Find the database. */
+    gcmkONERROR(gckKERNEL_FindDatabase(Kernel, ProcessID, gcvFALSE, &database));
+
+    /* Return the pointer to the cache. */
+    *Cache = &database->cache;
+
+    /* Success. */
+    gcmkFOOTER_ARG("*Cache=0x%x", *Cache);
+    return gcvSTATUS_OK;
+
+OnError:
+    /* Return the status. */
+    gcmkFOOTER();
+    return status;
+}
+#endif
+
+gceSTATUS
+gckKERNEL_DumpProcessDB(
+    IN gckKERNEL Kernel
+    )
+{
+    gcsDATABASE_PTR database;
+    gctINT i, pid;
+    gctUINT8 name[24];
+
+    gcmkHEADER_ARG("Kernel=0x%x", Kernel);
+
+    /* Acquire the database mutex. */
+    gcmkVERIFY_OK(
+        gckOS_AcquireMutex(Kernel->os, Kernel->db->dbMutex, gcvINFINITE));
+
+    gcmkPRINT("**************************\n");
+    gcmkPRINT("***  PROCESS DB DUMP   ***\n");
+    gcmkPRINT("**************************\n");
+
+    gcmkPRINT_N(8, "%-8s%s\n", "PID", "NAME");
+    /* Walk the databases. */
+    for (i = 0; i < gcmCOUNTOF(Kernel->db->db); ++i)
+    {
+        for (database = Kernel->db->db[i];
+             database != gcvNULL;
+             database = database->next)
+        {
+            pid = database->processID;
+
+            gcmkVERIFY_OK(gckOS_ZeroMemory(name, gcmSIZEOF(name)));
+
+            gcmkVERIFY_OK(gckOS_GetProcessNameByPid(pid, gcmSIZEOF(name), name));
+
+            gcmkPRINT_N(8, "%-8d%s\n", pid, name);
+        }
+    }
+
+    /* Release the database mutex. */
+    gcmkVERIFY_OK(gckOS_ReleaseMutex(Kernel->os, Kernel->db->dbMutex));
+
+    /* Success. */
+    gcmkFOOTER_NO();
+    return gcvSTATUS_OK;
+}
+
+void
+_DumpCounter(
+    IN gcsDATABASE_COUNTERS * Counter,
+    IN gctCONST_STRING Name
+    )
+{
+    gcmkPRINT("%s:", Name);
+    gcmkPRINT("  Currently allocated : %10lld", Counter->bytes);
+    gcmkPRINT("  Maximum allocated   : %10lld", Counter->maxBytes);
+    gcmkPRINT("  Total allocated     : %10lld", Counter->totalBytes);
+}
+
+gceSTATUS
+gckKERNEL_DumpVidMemUsage(
+    IN gckKERNEL Kernel,
+    IN gctINT32 ProcessID
+    )
+{
+    gceSTATUS status;
+    gcsDATABASE_PTR database;
+    gcsDATABASE_COUNTERS * counter;
+    gctUINT32 i = 0;
+
+    static gctCONST_STRING surfaceTypes[] = {
+        "UNKNOWN",
+        "INDEX",
+        "VERTEX",
+        "TEXTURE",
+        "RENDER_TARGET",
+        "DEPTH",
+        "BITMAP",
+        "TILE_STATUS",
+        "IMAGE",
+        "MASK",
+        "SCISSOR",
+        "HIERARCHICAL_DEPTH",
+    };
+
+    gcmkHEADER_ARG("Kernel=0x%x ProcessID=%d",
+                   Kernel, ProcessID);
+
+    /* Verify the arguments. */
+    gcmkVERIFY_OBJECT(Kernel, gcvOBJ_KERNEL);
+
+    /* Find the database. */
+    gcmkONERROR(
+        gckKERNEL_FindDatabase(Kernel, ProcessID, gcvFALSE, &database));
+
+    gcmkPRINT("VidMem Usage (Process %d):", ProcessID);
+
+    /* Get pointer to counters. */
+    counter = &database->vidMem;
+
+    _DumpCounter(counter, "Total Video Memory");
+
+    for (i = 0; i < gcvSURF_NUM_TYPES; i++)
+    {
+        counter = &database->vidMemType[i];
+
+        _DumpCounter(counter, surfaceTypes[i]);
+    }
+
+    /* Success. */
+    gcmkFOOTER_NO();
+    return gcvSTATUS_OK;
+
+OnError:
+    /* Return the status. */
+    gcmkFOOTER();
+    return status;
+}
diff --git a/src/hal/kernel/gc_hal_kernel_debug.c b/src/hal/kernel/gc_hal_kernel_debug.c
new file mode 100755
index 0000000..7bd0c57
--- /dev/null
+++ b/src/hal/kernel/gc_hal_kernel_debug.c
@@ -0,0 +1,2821 @@
+/****************************************************************************
+*
+*    The MIT License (MIT)
+*
+*    Copyright (c) 2014 Vivante Corporation
+*
+*    Permission is hereby granted, free of charge, to any person obtaining a
+*    copy of this software and associated documentation files (the "Software"),
+*    to deal in the Software without restriction, including without limitation
+*    the rights to use, copy, modify, merge, publish, distribute, sublicense,
+*    and/or sell copies of the Software, and to permit persons to whom the
+*    Software is furnished to do so, subject to the following conditions:
+*
+*    The above copyright notice and this permission notice shall be included in
+*    all copies or substantial portions of the Software.
+*
+*    THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+*    IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+*    FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+*    AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+*    LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+*    FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+*    DEALINGS IN THE SOFTWARE.
+*
+*****************************************************************************
+*
+*    The GPL License (GPL)
+*
+*    Copyright (C) 2014  Vivante Corporation
+*
+*    This program is free software; you can redistribute it and/or
+*    modify it under the terms of the GNU General Public License
+*    as published by the Free Software Foundation; either version 2
+*    of the License, or (at your option) any later version.
+*
+*    This program is distributed in the hope that it will be useful,
+*    but WITHOUT ANY WARRANTY; without even the implied warranty of
+*    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+*    GNU General Public License for more details.
+*
+*    You should have received a copy of the GNU General Public License
+*    along with this program; if not, write to the Free Software Foundation,
+*    Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+*
+*****************************************************************************
+*
+*    Note: This software is released under dual MIT and GPL licenses. A
+*    recipient may use this file under the terms of either the MIT license or
+*    GPL License. If you wish to use only one license not the other, you can
+*    indicate your decision by deleting one of the above license notices in your
+*    version of this file.
+*
+*****************************************************************************/
+
+
+#include "gc_hal_kernel_precomp.h"
+#include <gc_hal_kernel_debug.h>
+
+/******************************************************************************\
+******************************** Debug Variables *******************************
+\******************************************************************************/
+
+static gceSTATUS _lastError  = gcvSTATUS_OK;
+static gctUINT32 _debugLevel = gcvLEVEL_ERROR;
+/*
+_debugZones config value
+Please Reference define in gc_hal_base.h
+*/
+static gctUINT32 _debugZones = gcvZONE_NONE;
+
+/******************************************************************************\
+********************************* Debug Switches *******************************
+\******************************************************************************/
+
+/*
+    gcdBUFFERED_OUTPUT
+
+    When set to non-zero, all output is collected into a buffer with the
+    specified size.  Once the buffer gets full, the debug buffer will be
+    printed to the console. gcdBUFFERED_SIZE determines the size of the buffer.
+*/
+#define gcdBUFFERED_OUTPUT  0
+
+/*
+    gcdBUFFERED_SIZE
+
+    When set to non-zero, all output is collected into a buffer with the
+    specified size.  Once the buffer gets full, the debug buffer will be
+    printed to the console.
+*/
+#define gcdBUFFERED_SIZE    (1024 * 1024 * 2)
+
+/*
+    gcdDMA_BUFFER_COUNT
+
+    If greater then zero, the debugger will attempt to find the command buffer
+    where DMA is currently executing and then print this buffer and
+    (gcdDMA_BUFFER_COUNT - 1) buffers before the current one. If set to zero
+    or the current buffer is not found, all buffers are printed.
+*/
+#define gcdDMA_BUFFER_COUNT 0
+
+/*
+    gcdTHREAD_BUFFERS
+
+    When greater then one, will accumulate messages from the specified number
+    of threads in separate output buffers.
+*/
+#define gcdTHREAD_BUFFERS   1
+
+/*
+    gcdENABLE_OVERFLOW
+
+    When set to non-zero, and the output buffer gets full, instead of being
+    printed, it will be allowed to overflow removing the oldest messages.
+*/
+#define gcdENABLE_OVERFLOW  1
+
+/*
+    gcdSHOW_LINE_NUMBER
+
+    When enabledm each print statement will be preceeded with the current
+    line number.
+*/
+#define gcdSHOW_LINE_NUMBER 0
+
+/*
+    gcdSHOW_PROCESS_ID
+
+    When enabledm each print statement will be preceeded with the current
+    process ID.
+*/
+#define gcdSHOW_PROCESS_ID  0
+
+/*
+    gcdSHOW_THREAD_ID
+
+    When enabledm each print statement will be preceeded with the current
+    thread ID.
+*/
+#define gcdSHOW_THREAD_ID   0
+
+/*
+    gcdSHOW_TIME
+
+    When enabled each print statement will be preceeded with the current
+    high-resolution time.
+*/
+#define gcdSHOW_TIME        0
+
+
+/******************************************************************************\
+****************************** Miscellaneous Macros ****************************
+\******************************************************************************/
+
+#if gcmIS_DEBUG(gcdDEBUG_TRACE)
+#   define gcmDBGASSERT(Expression, Format, Value) \
+        if (!(Expression)) \
+        { \
+            _DirectPrint( \
+                "*** gcmDBGASSERT ***************************\n" \
+                "    function     : %s\n" \
+                "    line         : %d\n" \
+                "    expression   : " #Expression "\n" \
+                "    actual value : " Format "\n", \
+                __FUNCTION__, __LINE__, Value \
+                ); \
+        }
+#else
+#   define gcmDBGASSERT(Expression, Format, Value)
+#endif
+
+#define gcmPTRALIGNMENT(Pointer, Alignemnt) \
+( \
+    gcmALIGN(gcmPTR2INT32(Pointer), Alignemnt) - gcmPTR2INT32(Pointer) \
+)
+
+#if gcdALIGNBYSIZE
+#   define gcmISALIGNED(Offset, Alignment) \
+        (((Offset) & ((Alignment) - 1)) == 0)
+
+#   define gcmkALIGNPTR(Type, Pointer, Alignment) \
+        Pointer = (Type) gcmINT2PTR(gcmALIGN(gcmPTR2INT32(Pointer), Alignment))
+#else
+#   define gcmISALIGNED(Offset, Alignment) \
+        gcvTRUE
+
+#   define gcmkALIGNPTR(Type, Pointer, Alignment)
+#endif
+
+#define gcmALIGNSIZE(Offset, Size) \
+    ((Size - Offset) + Size)
+
+#define gcdHAVEPREFIX \
+( \
+       gcdSHOW_TIME \
+    || gcdSHOW_LINE_NUMBER \
+    || gcdSHOW_PROCESS_ID \
+    || gcdSHOW_THREAD_ID \
+)
+
+#if gcdHAVEPREFIX
+
+#   define gcdOFFSET                    0
+
+#if gcdSHOW_TIME
+#if gcmISALIGNED(gcdOFFSET, 8)
+#           define gcdTIMESIZE          gcmSIZEOF(gctUINT64)
+#       elif gcdOFFSET == 4
+#           define gcdTIMESIZE          gcmALIGNSIZE(4, gcmSIZEOF(gctUINT64))
+#       else
+#           error "Unexpected offset value."
+#       endif
+#       undef  gcdOFFSET
+#       define gcdOFFSET                8
+#if !defined(gcdPREFIX_LEADER)
+#           define gcdPREFIX_LEADER     gcmSIZEOF(gctUINT64)
+#           define gcdTIMEFORMAT        "0x%016llX"
+#       else
+#           define gcdTIMEFORMAT        ", 0x%016llX"
+#       endif
+#   else
+#       define gcdTIMESIZE              0
+#       define gcdTIMEFORMAT
+#   endif
+
+#if gcdSHOW_LINE_NUMBER
+#if gcmISALIGNED(gcdOFFSET, 8)
+#           define gcdNUMSIZE           gcmSIZEOF(gctUINT64)
+#       elif gcdOFFSET == 4
+#           define gcdNUMSIZE           gcmALIGNSIZE(4, gcmSIZEOF(gctUINT64))
+#       else
+#           error "Unexpected offset value."
+#       endif
+#       undef  gcdOFFSET
+#       define gcdOFFSET                8
+#if !defined(gcdPREFIX_LEADER)
+#           define gcdPREFIX_LEADER     gcmSIZEOF(gctUINT64)
+#           define gcdNUMFORMAT         "%8llu"
+#       else
+#           define gcdNUMFORMAT         ", %8llu"
+#       endif
+#   else
+#       define gcdNUMSIZE               0
+#       define gcdNUMFORMAT
+#   endif
+
+#if gcdSHOW_PROCESS_ID
+#if gcmISALIGNED(gcdOFFSET, 4)
+#           define gcdPIDSIZE           gcmSIZEOF(gctUINT32)
+#       else
+#           error "Unexpected offset value."
+#       endif
+#       undef  gcdOFFSET
+#       define gcdOFFSET                4
+#if !defined(gcdPREFIX_LEADER)
+#           define gcdPREFIX_LEADER     gcmSIZEOF(gctUINT32)
+#           define gcdPIDFORMAT         "pid=%5d"
+#       else
+#           define gcdPIDFORMAT         ", pid=%5d"
+#       endif
+#   else
+#       define gcdPIDSIZE               0
+#       define gcdPIDFORMAT
+#   endif
+
+#if gcdSHOW_THREAD_ID
+#if gcmISALIGNED(gcdOFFSET, 4)
+#           define gcdTIDSIZE           gcmSIZEOF(gctUINT32)
+#       else
+#           error "Unexpected offset value."
+#       endif
+#       undef  gcdOFFSET
+#       define gcdOFFSET                4
+#if !defined(gcdPREFIX_LEADER)
+#           define gcdPREFIX_LEADER     gcmSIZEOF(gctUINT32)
+#           define gcdTIDFORMAT         "tid=%5d"
+#       else
+#           define gcdTIDFORMAT         ", tid=%5d"
+#       endif
+#   else
+#       define gcdTIDSIZE               0
+#       define gcdTIDFORMAT
+#   endif
+
+#   define gcdPREFIX_SIZE \
+    ( \
+          gcdTIMESIZE \
+        + gcdNUMSIZE  \
+        + gcdPIDSIZE  \
+        + gcdTIDSIZE  \
+    )
+
+    static const char * _prefixFormat =
+    "["
+        gcdTIMEFORMAT
+        gcdNUMFORMAT
+        gcdPIDFORMAT
+        gcdTIDFORMAT
+    "] ";
+
+#else
+
+#   define gcdPREFIX_LEADER             gcmSIZEOF(gctUINT32)
+#   define gcdPREFIX_SIZE               0
+
+#endif
+
+/* Assumed largest variable argument leader size. */
+#define gcdVARARG_LEADER                gcmSIZEOF(gctUINT64)
+
+/* Alignnments. */
+#if gcdALIGNBYSIZE
+#   define gcdPREFIX_ALIGNMENT gcdPREFIX_LEADER
+#   define gcdVARARG_ALIGNMENT gcdVARARG_LEADER
+#else
+#   define gcdPREFIX_ALIGNMENT 0
+#   define gcdVARARG_ALIGNMENT 0
+#endif
+
+#if gcdBUFFERED_OUTPUT
+#   define gcdOUTPUTPREFIX _AppendPrefix
+#   define gcdOUTPUTSTRING _AppendString
+#   define gcdOUTPUTCOPY   _AppendCopy
+#   define gcdOUTPUTBUFFER _AppendBuffer
+#else
+#   define gcdOUTPUTPREFIX _PrintPrefix
+#   define gcdOUTPUTSTRING _PrintString
+#   define gcdOUTPUTCOPY   _PrintString
+#   define gcdOUTPUTBUFFER _PrintBuffer
+#endif
+
+/******************************************************************************\
+****************************** Private Structures ******************************
+\******************************************************************************/
+
+typedef enum _gceBUFITEM
+{
+    gceBUFITEM_NONE,
+    gcvBUFITEM_PREFIX,
+    gcvBUFITEM_STRING,
+    gcvBUFITEM_COPY,
+    gcvBUFITEM_BUFFER
+}
+gceBUFITEM;
+
+/* Common item head/buffer terminator. */
+typedef struct _gcsBUFITEM_HEAD * gcsBUFITEM_HEAD_PTR;
+typedef struct _gcsBUFITEM_HEAD
+{
+    gceBUFITEM              type;
+}
+gcsBUFITEM_HEAD;
+
+/* String prefix (for ex. [     1,tid=0x019A]) */
+typedef struct _gcsBUFITEM_PREFIX * gcsBUFITEM_PREFIX_PTR;
+typedef struct _gcsBUFITEM_PREFIX
+{
+    gceBUFITEM              type;
+#if gcdHAVEPREFIX
+    gctPOINTER              prefixData;
+#endif
+}
+gcsBUFITEM_PREFIX;
+
+/* Buffered string. */
+typedef struct _gcsBUFITEM_STRING * gcsBUFITEM_STRING_PTR;
+typedef struct _gcsBUFITEM_STRING
+{
+    gceBUFITEM              type;
+    gctINT                  indent;
+    gctCONST_STRING         message;
+    gctPOINTER              messageData;
+    gctUINT                 messageDataSize;
+}
+gcsBUFITEM_STRING;
+
+/* Buffered string (copy of the string is included with the record). */
+typedef struct _gcsBUFITEM_COPY * gcsBUFITEM_COPY_PTR;
+typedef struct _gcsBUFITEM_COPY
+{
+    gceBUFITEM              type;
+    gctINT                  indent;
+    gctPOINTER              messageData;
+    gctUINT                 messageDataSize;
+}
+gcsBUFITEM_COPY;
+
+/* Memory buffer. */
+typedef struct _gcsBUFITEM_BUFFER * gcsBUFITEM_BUFFER_PTR;
+typedef struct _gcsBUFITEM_BUFFER
+{
+    gceBUFITEM              type;
+    gctINT                  indent;
+    gceDUMP_BUFFER          bufferType;
+
+#if gcdDMA_BUFFER_COUNT && (gcdTHREAD_BUFFERS == 1)
+    gctUINT32               dmaAddress;
+#endif
+
+    gctUINT                 dataSize;
+    gctUINT32               address;
+#if gcdHAVEPREFIX
+    gctPOINTER              prefixData;
+#endif
+}
+gcsBUFITEM_BUFFER;
+
+typedef struct _gcsBUFFERED_OUTPUT * gcsBUFFERED_OUTPUT_PTR;
+typedef struct _gcsBUFFERED_OUTPUT
+{
+#if gcdTHREAD_BUFFERS > 1
+    gctUINT32               threadID;
+#endif
+
+#if gcdSHOW_LINE_NUMBER
+    gctUINT64               lineNumber;
+#endif
+
+    gctINT                  indent;
+
+#if gcdBUFFERED_OUTPUT
+    gctINT                  start;
+    gctINT                  index;
+    gctINT                  count;
+    gctUINT8                buffer[gcdBUFFERED_SIZE];
+#endif
+
+    gcsBUFFERED_OUTPUT_PTR  prev;
+    gcsBUFFERED_OUTPUT_PTR  next;
+}
+gcsBUFFERED_OUTPUT;
+
+typedef gctUINT (* gcfPRINTSTRING) (
+    IN gcsBUFFERED_OUTPUT_PTR OutputBuffer,
+    IN gcsBUFITEM_HEAD_PTR Item
+    );
+
+typedef gctINT (* gcfGETITEMSIZE) (
+    IN gcsBUFITEM_HEAD_PTR Item
+    );
+
+/******************************************************************************\
+******************************* Private Variables ******************************
+\******************************************************************************/
+
+static gcsBUFFERED_OUTPUT     _outputBuffer[gcdTHREAD_BUFFERS];
+static gcsBUFFERED_OUTPUT_PTR _outputBufferHead = gcvNULL;
+static gcsBUFFERED_OUTPUT_PTR _outputBufferTail = gcvNULL;
+
+/******************************************************************************\
+****************************** Item Size Functions *****************************
+\******************************************************************************/
+
+#if gcdBUFFERED_OUTPUT
+static gctINT
+_GetTerminatorItemSize(
+    IN gcsBUFITEM_HEAD_PTR Item
+    )
+{
+    return gcmSIZEOF(gcsBUFITEM_HEAD);
+}
+
+static gctINT
+_GetPrefixItemSize(
+    IN gcsBUFITEM_HEAD_PTR Item
+    )
+{
+#if gcdHAVEPREFIX
+    gcsBUFITEM_PREFIX_PTR item = (gcsBUFITEM_PREFIX_PTR) Item;
+    gctUINT vlen = ((gctUINT8_PTR) item->prefixData) - ((gctUINT8_PTR) item);
+    return vlen + gcdPREFIX_SIZE;
+#else
+    return gcmSIZEOF(gcsBUFITEM_PREFIX);
+#endif
+}
+
+static gctINT
+_GetStringItemSize(
+    IN gcsBUFITEM_HEAD_PTR Item
+    )
+{
+    gcsBUFITEM_STRING_PTR item = (gcsBUFITEM_STRING_PTR) Item;
+    gctUINT vlen = ((gctUINT8_PTR) item->messageData) - ((gctUINT8_PTR) item);
+    return vlen + item->messageDataSize;
+}
+
+static gctINT
+_GetCopyItemSize(
+    IN gcsBUFITEM_HEAD_PTR Item
+    )
+{
+    gcsBUFITEM_COPY_PTR item = (gcsBUFITEM_COPY_PTR) Item;
+    gctUINT vlen = ((gctUINT8_PTR) item->messageData) - ((gctUINT8_PTR) item);
+    return vlen + item->messageDataSize;
+}
+
+static gctINT
+_GetBufferItemSize(
+    IN gcsBUFITEM_HEAD_PTR Item
+    )
+{
+#if gcdHAVEPREFIX
+    gcsBUFITEM_BUFFER_PTR item = (gcsBUFITEM_BUFFER_PTR) Item;
+    gctUINT vlen = ((gctUINT8_PTR) item->prefixData) - ((gctUINT8_PTR) item);
+    return vlen + gcdPREFIX_SIZE + item->dataSize;
+#else
+    gcsBUFITEM_BUFFER_PTR item = (gcsBUFITEM_BUFFER_PTR) Item;
+    return gcmSIZEOF(gcsBUFITEM_BUFFER) + item->dataSize;
+#endif
+}
+
+static gcfGETITEMSIZE _itemSize[] =
+{
+    _GetTerminatorItemSize,
+    _GetPrefixItemSize,
+    _GetStringItemSize,
+    _GetCopyItemSize,
+    _GetBufferItemSize
+};
+#endif
+
+/******************************************************************************\
+******************************* Printing Functions *****************************
+\******************************************************************************/
+
+#if gcdDEBUG || gcdBUFFERED_OUTPUT
+static void
+_DirectPrint(
+    gctCONST_STRING Message,
+    ...
+    )
+{
+    gctINT len;
+    char buffer[768];
+    gctARGUMENTS arguments;
+
+    gcmkARGUMENTS_START(arguments, Message);
+    len = gcmkVSPRINTF(buffer, gcmSIZEOF(buffer), Message, &arguments);
+    gcmkARGUMENTS_END(arguments);
+
+    buffer[len] = '\0';
+    gcmkOUTPUT_STRING(buffer);
+}
+#endif
+
+static int
+_AppendIndent(
+    IN gctINT Indent,
+    IN char * Buffer,
+    IN int BufferSize
+    )
+{
+    gctINT i;
+
+    gctINT len    = 0;
+    gctINT indent = Indent % 40;
+
+    for (i = 0; i < indent; i += 1)
+    {
+        Buffer[len++] = ' ';
+    }
+
+    if (indent != Indent)
+    {
+        len += gcmkSPRINTF(
+            Buffer + len, BufferSize - len, " <%d> ", Indent
+            );
+
+        Buffer[len] = '\0';
+    }
+
+    return len;
+}
+
+#if gcdHAVEPREFIX
+static void
+_PrintPrefix(
+    IN gcsBUFFERED_OUTPUT_PTR OutputBuffer,
+    IN gctPOINTER Data
+    )
+{
+    char buffer[768];
+    gctINT len;
+
+    /* Format the string. */
+    len = gcmkVSPRINTF(buffer, gcmSIZEOF(buffer), _prefixFormat, Data);
+    buffer[len] = '\0';
+
+    /* Print the string. */
+    gcmkOUTPUT_STRING(buffer);
+}
+#endif
+
+static void
+_PrintString(
+    IN gcsBUFFERED_OUTPUT_PTR OutputBuffer,
+    IN gctINT Indent,
+    IN gctCONST_STRING Message,
+    IN gctUINT ArgumentSize,
+    IN gctPOINTER Data
+    )
+{
+    char buffer[768];
+    gctINT len;
+
+    /* Append the indent string. */
+    len = _AppendIndent(Indent, buffer, gcmSIZEOF(buffer));
+
+    /* Format the string. */
+    len += gcmkVSPRINTF(buffer + len, gcmSIZEOF(buffer) - len, Message, Data);
+    buffer[len] = '\0';
+
+    /* Add end-of-line if missing. */
+    if (buffer[len - 1] != '\n')
+    {
+        buffer[len++] = '\n';
+        buffer[len] = '\0';
+    }
+
+    /* Print the string. */
+    gcmkOUTPUT_STRING(buffer);
+}
+
+static void
+_PrintBuffer(
+    IN gcsBUFFERED_OUTPUT_PTR OutputBuffer,
+    IN gctINT Indent,
+    IN gctPOINTER PrefixData,
+    IN gctPOINTER Data,
+    IN gctUINT Address,
+    IN gctUINT DataSize,
+    IN gceDUMP_BUFFER Type,
+    IN gctUINT32 DmaAddress
+    )
+{
+    static gctCONST_STRING _titleString[] =
+    {
+        "CONTEXT BUFFER",
+        "USER COMMAND BUFFER",
+        "KERNEL COMMAND BUFFER",
+        "LINK BUFFER",
+        "WAIT LINK BUFFER",
+        ""
+    };
+
+    static const gctINT COLUMN_COUNT = 8;
+
+    gctUINT i, count, column, address;
+    gctUINT32_PTR data;
+    gctCHAR buffer[768];
+    gctUINT indent, len;
+    gctBOOL command;
+
+    /* Append space for the prefix. */
+#if gcdHAVEPREFIX
+    indent = gcmkVSPRINTF(buffer, gcmSIZEOF(buffer), _prefixFormat, PrefixData);
+    buffer[indent] = '\0';
+#else
+    indent = 0;
+#endif
+
+    /* Append the indent string. */
+    indent += _AppendIndent(
+        Indent, buffer + indent, gcmSIZEOF(buffer) - indent
+        );
+
+    switch (Type)
+    {
+    case gceDUMP_BUFFER_CONTEXT:
+    case gceDUMP_BUFFER_USER:
+    case gceDUMP_BUFFER_KERNEL:
+    case gceDUMP_BUFFER_LINK:
+    case gceDUMP_BUFFER_WAITLINK:
+        /* Form and print the title string. */
+        gcmkSPRINTF2(
+            buffer + indent, gcmSIZEOF(buffer) - indent,
+            "%s%s\n", _titleString[Type],
+            ((DmaAddress >= Address) && (DmaAddress < Address + DataSize))
+                ? " (CURRENT)" : ""
+            );
+
+        gcmkOUTPUT_STRING(buffer);
+
+        /* Terminate the string. */
+        buffer[indent] = '\0';
+
+        /* This is a command buffer. */
+        command = gcvTRUE;
+        break;
+
+    case gceDUMP_BUFFER_FROM_USER:
+        /* This is not a command buffer. */
+        command = gcvFALSE;
+
+        /* No title. */
+        break;
+
+    default:
+        gcmDBGASSERT(gcvFALSE, "%s", "invalid buffer type");
+
+        /* This is not a command buffer. */
+        command = gcvFALSE;
+    }
+
+    /* Overwrite the prefix with spaces. */
+    for (i = 0; i < indent; i += 1)
+    {
+        buffer[i] = ' ';
+    }
+
+    /* Form and print the opening string. */
+    if (command)
+    {
+        gcmkSPRINTF2(
+            buffer + indent, gcmSIZEOF(buffer) - indent,
+            "@[kernel.command %08X %08X\n", Address, DataSize
+            );
+
+        gcmkOUTPUT_STRING(buffer);
+
+        /* Terminate the string. */
+        buffer[indent] = '\0';
+    }
+
+    /* Get initial address. */
+    address = Address;
+
+    /* Cast the data pointer. */
+    data = (gctUINT32_PTR) Data;
+
+    /* Compute the number of double words. */
+    count = DataSize / gcmSIZEOF(gctUINT32);
+
+    /* Print the buffer. */
+    for (i = 0, len = indent, column = 0; i < count; i += 1)
+    {
+        /* Append the address. */
+        if (column == 0)
+        {
+            len += gcmkSPRINTF(
+                buffer + len, gcmSIZEOF(buffer) - len, "0x%08X:", address
+                );
+        }
+
+        /* Append the data value. */
+        len += gcmkSPRINTF2(
+            buffer + len, gcmSIZEOF(buffer) - len, "%c%08X",
+            (address == DmaAddress)? '>' : ' ', data[i]
+            );
+
+        buffer[len] = '\0';
+
+        /* Update the address. */
+        address += gcmSIZEOF(gctUINT32);
+
+        /* Advance column count. */
+        column += 1;
+
+        /* End of line? */
+        if ((column % COLUMN_COUNT) == 0)
+        {
+            /* Append EOL. */
+            gcmkSTRCAT(buffer + len, gcmSIZEOF(buffer) - len, "\n");
+
+            /* Print the string. */
+            gcmkOUTPUT_STRING(buffer);
+
+            /* Reset. */
+            len    = indent;
+            column = 0;
+        }
+    }
+
+    /* Print the last partial string. */
+    if (column != 0)
+    {
+        /* Append EOL. */
+        gcmkSTRCAT(buffer + len, gcmSIZEOF(buffer) - len, "\n");
+
+        /* Print the string. */
+        gcmkOUTPUT_STRING(buffer);
+    }
+
+    /* Form and print the opening string. */
+    if (command)
+    {
+        buffer[indent] = '\0';
+        gcmkSTRCAT(buffer, gcmSIZEOF(buffer), "] -- command\n");
+        gcmkOUTPUT_STRING(buffer);
+    }
+}
+
+#if gcdBUFFERED_OUTPUT
+static gctUINT
+_PrintNone(
+    IN gcsBUFFERED_OUTPUT_PTR OutputBuffer,
+    IN gcsBUFITEM_HEAD_PTR Item
+    )
+{
+    /* Return the size of the node. */
+    return gcmSIZEOF(gcsBUFITEM_HEAD);
+}
+
+static gctUINT
+_PrintPrefixWrapper(
+    IN gcsBUFFERED_OUTPUT_PTR OutputBuffer,
+    IN gcsBUFITEM_HEAD_PTR Item
+    )
+{
+#if gcdHAVEPREFIX
+    gcsBUFITEM_PREFIX_PTR item;
+    gctUINT vlen;
+
+    /* Get access to the data. */
+    item = (gcsBUFITEM_PREFIX_PTR) Item;
+
+    /* Print the message. */
+    _PrintPrefix(OutputBuffer, item->prefixData);
+
+    /* Compute the size of the variable portion of the structure. */
+    vlen = ((gctUINT8_PTR) item->prefixData) - ((gctUINT8_PTR) item);
+
+    /* Return the size of the node. */
+    return vlen + gcdPREFIX_SIZE;
+#else
+    return gcmSIZEOF(gcsBUFITEM_PREFIX);
+#endif
+}
+
+static gctUINT
+_PrintStringWrapper(
+    IN gcsBUFFERED_OUTPUT_PTR OutputBuffer,
+    IN gcsBUFITEM_HEAD_PTR Item
+    )
+{
+    gcsBUFITEM_STRING_PTR item;
+    gctUINT vlen;
+
+    /* Get access to the data. */
+    item = (gcsBUFITEM_STRING_PTR) Item;
+
+    /* Print the message. */
+    _PrintString(
+        OutputBuffer,
+        item->indent, item->message, item->messageDataSize, item->messageData
+        );
+
+    /* Compute the size of the variable portion of the structure. */
+    vlen = ((gctUINT8_PTR) item->messageData) - ((gctUINT8_PTR) item);
+
+    /* Return the size of the node. */
+    return vlen + item->messageDataSize;
+}
+
+static gctUINT
+_PrintCopyWrapper(
+    IN gcsBUFFERED_OUTPUT_PTR OutputBuffer,
+    IN gcsBUFITEM_HEAD_PTR Item
+    )
+{
+    gcsBUFITEM_COPY_PTR item;
+    gctCONST_STRING message;
+    gctUINT vlen;
+
+    /* Get access to the data. */
+    item = (gcsBUFITEM_COPY_PTR) Item;
+
+    /* Determine the string pointer. */
+    message = (gctCONST_STRING) (item + 1);
+
+    /* Print the message. */
+    _PrintString(
+        OutputBuffer,
+        item->indent, message, item->messageDataSize, item->messageData
+        );
+
+    /* Compute the size of the variable portion of the structure. */
+    vlen = ((gctUINT8_PTR) item->messageData) - ((gctUINT8_PTR) item);
+
+    /* Return the size of the node. */
+    return vlen + item->messageDataSize;
+}
+
+static gctUINT
+_PrintBufferWrapper(
+    IN gcsBUFFERED_OUTPUT_PTR OutputBuffer,
+    IN gcsBUFITEM_HEAD_PTR Item
+    )
+{
+#if gcdHAVEPREFIX
+    gctUINT32 dmaAddress;
+    gcsBUFITEM_BUFFER_PTR item;
+    gctPOINTER data;
+    gctUINT vlen;
+
+    /* Get access to the data. */
+    item = (gcsBUFITEM_BUFFER_PTR) Item;
+
+#if gcdDMA_BUFFER_COUNT && (gcdTHREAD_BUFFERS == 1)
+    dmaAddress = item->dmaAddress;
+#else
+    dmaAddress = 0xFFFFFFFF;
+#endif
+
+    if (dmaAddress != 0)
+    {
+        /* Compute the data address. */
+        data = ((gctUINT8_PTR) item->prefixData) + gcdPREFIX_SIZE;
+
+        /* Print buffer. */
+        _PrintBuffer(
+            OutputBuffer,
+            item->indent, item->prefixData,
+            data, item->address, item->dataSize,
+            item->bufferType, dmaAddress
+            );
+    }
+
+    /* Compute the size of the variable portion of the structure. */
+    vlen = ((gctUINT8_PTR) item->prefixData) - ((gctUINT8_PTR) item);
+
+    /* Return the size of the node. */
+    return vlen + gcdPREFIX_SIZE + item->dataSize;
+#else
+    gctUINT32 dmaAddress;
+    gcsBUFITEM_BUFFER_PTR item;
+
+    /* Get access to the data. */
+    item = (gcsBUFITEM_BUFFER_PTR) Item;
+
+#if gcdDMA_BUFFER_COUNT && (gcdTHREAD_BUFFERS == 1)
+    dmaAddress = item->dmaAddress;
+#else
+    dmaAddress = 0xFFFFFFFF;
+#endif
+
+    if (dmaAddress != 0)
+    {
+        /* Print buffer. */
+        _PrintBuffer(
+            OutputBuffer,
+            item->indent, gcvNULL,
+            item + 1, item->address, item->dataSize,
+            item->bufferType, dmaAddress
+            );
+    }
+
+    /* Return the size of the node. */
+    return gcmSIZEOF(gcsBUFITEM_BUFFER) + item->dataSize;
+#endif
+}
+
+static gcfPRINTSTRING _printArray[] =
+{
+    _PrintNone,
+    _PrintPrefixWrapper,
+    _PrintStringWrapper,
+    _PrintCopyWrapper,
+    _PrintBufferWrapper
+};
+#endif
+
+/******************************************************************************\
+******************************* Private Functions ******************************
+\******************************************************************************/
+
+#if gcdBUFFERED_OUTPUT
+
+#if gcdDMA_BUFFER_COUNT && (gcdTHREAD_BUFFERS == 1)
+static gcsBUFITEM_BUFFER_PTR
+_FindCurrentDMABuffer(
+    gctUINT32 DmaAddress
+    )
+{
+    gctINT i, skip;
+    gcsBUFITEM_HEAD_PTR item;
+    gcsBUFITEM_BUFFER_PTR dmaCurrent;
+
+    /* Reset the current buffer. */
+    dmaCurrent = gcvNULL;
+
+    /* Get the first stored item. */
+    item = (gcsBUFITEM_HEAD_PTR) &_outputBufferHead->buffer[_outputBufferHead->start];
+
+    /* Run through all items. */
+    for (i = 0; i < _outputBufferHead->count; i += 1)
+    {
+        /* Buffer item? */
+        if (item->type == gcvBUFITEM_BUFFER)
+        {
+            gcsBUFITEM_BUFFER_PTR buffer = (gcsBUFITEM_BUFFER_PTR) item;
+
+            if ((DmaAddress >= buffer->address) &&
+                (DmaAddress <  buffer->address + buffer->dataSize))
+            {
+                dmaCurrent = buffer;
+            }
+        }
+
+        /* Get the item size and skip it. */
+        skip = (* _itemSize[item->type]) (item);
+        item = (gcsBUFITEM_HEAD_PTR) ((gctUINT8_PTR) item + skip);
+
+        /* End of the buffer? Wrap around. */
+        if (item->type == gceBUFITEM_NONE)
+        {
+            item = (gcsBUFITEM_HEAD_PTR) _outputBufferHead->buffer;
+        }
+    }
+
+    /* Return result. */
+    return dmaCurrent;
+}
+
+static void
+_EnableAllDMABuffers(
+    void
+    )
+{
+    gctINT i, skip;
+    gcsBUFITEM_HEAD_PTR item;
+
+    /* Get the first stored item. */
+    item = (gcsBUFITEM_HEAD_PTR) &_outputBufferHead->buffer[_outputBufferHead->start];
+
+    /* Run through all items. */
+    for (i = 0; i < _outputBufferHead->count; i += 1)
+    {
+        /* Buffer item? */
+        if (item->type == gcvBUFITEM_BUFFER)
+        {
+            gcsBUFITEM_BUFFER_PTR buffer = (gcsBUFITEM_BUFFER_PTR) item;
+
+            /* Enable the buffer. */
+            buffer->dmaAddress = ~0U;
+        }
+
+        /* Get the item size and skip it. */
+        skip = (* _itemSize[item->type]) (item);
+        item = (gcsBUFITEM_HEAD_PTR) ((gctUINT8_PTR) item + skip);
+
+        /* End of the buffer? Wrap around. */
+        if (item->type == gceBUFITEM_NONE)
+        {
+            item = (gcsBUFITEM_HEAD_PTR) _outputBufferHead->buffer;
+        }
+    }
+}
+
+static void
+_EnableDMABuffers(
+    gctUINT32 DmaAddress,
+    gcsBUFITEM_BUFFER_PTR CurrentDMABuffer
+    )
+{
+    gctINT i, skip, index;
+    gcsBUFITEM_HEAD_PTR item;
+    gcsBUFITEM_BUFFER_PTR buffers[gcdDMA_BUFFER_COUNT];
+
+    /* Reset buffer pointers. */
+    gckOS_ZeroMemory(buffers, gcmSIZEOF(buffers));
+
+    /* Set the current buffer index. */
+    index = -1;
+
+    /* Get the first stored item. */
+    item = (gcsBUFITEM_HEAD_PTR) &_outputBufferHead->buffer[_outputBufferHead->start];
+
+    /* Run through all items until the current DMA buffer is found. */
+    for (i = 0; i < _outputBufferHead->count; i += 1)
+    {
+        /* Buffer item? */
+        if (item->type == gcvBUFITEM_BUFFER)
+        {
+            /* Advance the index. */
+            index = (index + 1) % gcdDMA_BUFFER_COUNT;
+
+            /* Add to the buffer array. */
+            buffers[index] = (gcsBUFITEM_BUFFER_PTR) item;
+
+            /* Stop if this is the current DMA buffer. */
+            if ((gcsBUFITEM_BUFFER_PTR) item == CurrentDMABuffer)
+            {
+                break;
+            }
+        }
+
+        /* Get the item size and skip it. */
+        skip = (* _itemSize[item->type]) (item);
+        item = (gcsBUFITEM_HEAD_PTR) ((gctUINT8_PTR) item + skip);
+
+        /* End of the buffer? Wrap around. */
+        if (item->type == gceBUFITEM_NONE)
+        {
+            item = (gcsBUFITEM_HEAD_PTR) _outputBufferHead->buffer;
+        }
+    }
+
+    /* Enable the found buffers. */
+    gcmDBGASSERT(index != -1, "%d", index);
+
+    for (i = 0; i < gcdDMA_BUFFER_COUNT; i += 1)
+    {
+        if (buffers[index] == gcvNULL)
+        {
+            break;
+        }
+
+        buffers[index]->dmaAddress = DmaAddress;
+
+        index -= 1;
+
+        if (index == -1)
+        {
+            index = gcdDMA_BUFFER_COUNT - 1;
+        }
+    }
+}
+#endif
+
+static void
+_Flush(
+    gctUINT32 DmaAddress
+    )
+{
+    gctINT i, skip;
+    gcsBUFITEM_HEAD_PTR item;
+
+    gcsBUFFERED_OUTPUT_PTR outputBuffer = _outputBufferHead;
+
+#if gcdDMA_BUFFER_COUNT && (gcdTHREAD_BUFFERS == 1)
+    if ((outputBuffer != gcvNULL) && (outputBuffer->count != 0))
+    {
+        /* Find the current DMA buffer. */
+        gcsBUFITEM_BUFFER_PTR dmaCurrent = _FindCurrentDMABuffer(DmaAddress);
+
+        /* Was the current buffer found? */
+        if (dmaCurrent == gcvNULL)
+        {
+            /* No, print all buffers. */
+            _EnableAllDMABuffers();
+        }
+        else
+        {
+            /* Yes, enable only specified number of buffers. */
+            _EnableDMABuffers(DmaAddress, dmaCurrent);
+        }
+    }
+#endif
+
+    while (outputBuffer != gcvNULL)
+    {
+        if (outputBuffer->count != 0)
+        {
+            _DirectPrint("********************************************************************************\n");
+            _DirectPrint("FLUSHING DEBUG OUTPUT BUFFER (%d elements).\n", outputBuffer->count);
+            _DirectPrint("********************************************************************************\n");
+
+            item = (gcsBUFITEM_HEAD_PTR) &outputBuffer->buffer[outputBuffer->start];
+
+            for (i = 0; i < outputBuffer->count; i += 1)
+            {
+                skip = (* _printArray[item->type]) (outputBuffer, item);
+
+                item = (gcsBUFITEM_HEAD_PTR) ((gctUINT8_PTR) item + skip);
+
+                if (item->type == gceBUFITEM_NONE)
+                {
+                    item = (gcsBUFITEM_HEAD_PTR) outputBuffer->buffer;
+                }
+            }
+
+            outputBuffer->start = 0;
+            outputBuffer->index = 0;
+            outputBuffer->count = 0;
+        }
+
+        outputBuffer = outputBuffer->next;
+    }
+}
+
+static gcsBUFITEM_HEAD_PTR
+_AllocateItem(
+    IN gcsBUFFERED_OUTPUT_PTR OutputBuffer,
+    IN gctINT Size
+    )
+{
+    gctINT skip;
+    gcsBUFITEM_HEAD_PTR item, next;
+
+#if gcdENABLE_OVERFLOW
+    if (
+            (OutputBuffer->index + Size >= gcdBUFFERED_SIZE - gcmSIZEOF(gcsBUFITEM_HEAD))
+            ||
+            (
+                (OutputBuffer->index        <  OutputBuffer->start) &&
+                (OutputBuffer->index + Size >= OutputBuffer->start)
+            )
+    )
+    {
+        if (OutputBuffer->index + Size >= gcdBUFFERED_SIZE - gcmSIZEOF(gcsBUFITEM_HEAD))
+        {
+            if (OutputBuffer->index < OutputBuffer->start)
+            {
+                item = (gcsBUFITEM_HEAD_PTR) &OutputBuffer->buffer[OutputBuffer->start];
+
+                while (item->type != gceBUFITEM_NONE)
+                {
+                    skip = (* _itemSize[item->type]) (item);
+
+                    OutputBuffer->start += skip;
+                    OutputBuffer->count -= 1;
+
+                    item->type = gceBUFITEM_NONE;
+                    item = (gcsBUFITEM_HEAD_PTR) ((gctUINT8_PTR) item + skip);
+                }
+
+                OutputBuffer->start = 0;
+            }
+
+            OutputBuffer->index = 0;
+        }
+
+        item = (gcsBUFITEM_HEAD_PTR) &OutputBuffer->buffer[OutputBuffer->start];
+
+        while (OutputBuffer->start - OutputBuffer->index <= Size)
+        {
+            skip = (* _itemSize[item->type]) (item);
+
+            OutputBuffer->start += skip;
+            OutputBuffer->count -= 1;
+
+            item->type = gceBUFITEM_NONE;
+            item = (gcsBUFITEM_HEAD_PTR) ((gctUINT8_PTR) item + skip);
+
+            if (item->type == gceBUFITEM_NONE)
+            {
+                OutputBuffer->start = 0;
+                break;
+            }
+        }
+    }
+#else
+    if (OutputBuffer->index + Size > gcdBUFFERED_SIZE - gcmSIZEOF(gcsBUFITEM_HEAD))
+    {
+        _DirectPrint("\nMessage buffer full; forcing message flush.\n\n");
+        _Flush(~0U);
+    }
+#endif
+
+    item = (gcsBUFITEM_HEAD_PTR) &OutputBuffer->buffer[OutputBuffer->index];
+
+    OutputBuffer->index += Size;
+    OutputBuffer->count += 1;
+
+    next = (gcsBUFITEM_HEAD_PTR) ((gctUINT8_PTR) item + Size);
+    next->type = gceBUFITEM_NONE;
+
+    return item;
+}
+
+#if gcdALIGNBYSIZE
+static void
+_FreeExtraSpace(
+    IN gcsBUFFERED_OUTPUT_PTR OutputBuffer,
+    IN gctPOINTER Item,
+    IN gctINT ItemSize,
+    IN gctINT FreeSize
+    )
+{
+    gcsBUFITEM_HEAD_PTR next;
+
+    OutputBuffer->index -= FreeSize;
+
+    next = (gcsBUFITEM_HEAD_PTR) ((gctUINT8_PTR) Item + ItemSize);
+    next->type = gceBUFITEM_NONE;
+}
+#endif
+
+#if gcdHAVEPREFIX
+static void
+_AppendPrefix(
+    IN gcsBUFFERED_OUTPUT_PTR OutputBuffer,
+    IN gctPOINTER Data
+    )
+{
+    gctUINT8_PTR prefixData;
+    gcsBUFITEM_PREFIX_PTR item;
+    gctINT allocSize;
+
+#if gcdALIGNBYSIZE
+    gctUINT alignment;
+    gctINT size, freeSize;
+#endif
+
+    gcmDBGASSERT(Data != gcvNULL, "%p", Data);
+
+    /* Determine the maximum item size. */
+    allocSize
+        = gcmSIZEOF(gcsBUFITEM_PREFIX)
+        + gcdPREFIX_SIZE
+        + gcdPREFIX_ALIGNMENT;
+
+    /* Allocate prefix item. */
+    item = (gcsBUFITEM_PREFIX_PTR) _AllocateItem(OutputBuffer, allocSize);
+
+    /* Compute the initial prefix data pointer. */
+    prefixData = (gctUINT8_PTR) (item + 1);
+
+    /* Align the data pointer as necessary. */
+#if gcdALIGNBYSIZE
+    alignment = gcmPTRALIGNMENT(prefixData, gcdPREFIX_ALIGNMENT);
+    prefixData += alignment;
+#endif
+
+    /* Set item data. */
+    item->type       = gcvBUFITEM_PREFIX;
+    item->prefixData = prefixData;
+
+    /* Copy argument value. */
+    gcmkMEMCPY(prefixData, Data, gcdPREFIX_SIZE);
+
+#if gcdALIGNBYSIZE
+    /* Compute the actual node size. */
+    size = gcmSIZEOF(gcsBUFITEM_PREFIX) + gcdPREFIX_SIZE + alignment;
+
+    /* Free extra memory if any. */
+    freeSize = allocSize - size;
+    if (freeSize != 0)
+    {
+        _FreeExtraSpace(OutputBuffer, item, size, freeSize);
+    }
+#endif
+}
+#endif
+
+static void
+_AppendString(
+    IN gcsBUFFERED_OUTPUT_PTR OutputBuffer,
+    IN gctINT Indent,
+    IN gctCONST_STRING Message,
+    IN gctUINT ArgumentSize,
+    IN gctPOINTER Data
+    )
+{
+    gctUINT8_PTR messageData;
+    gcsBUFITEM_STRING_PTR item;
+    gctINT allocSize;
+
+#if gcdALIGNBYSIZE
+    gctUINT alignment;
+    gctINT size, freeSize;
+#endif
+
+    /* Determine the maximum item size. */
+    allocSize
+        = gcmSIZEOF(gcsBUFITEM_STRING)
+        + ArgumentSize
+        + gcdVARARG_ALIGNMENT;
+
+    /* Allocate prefix item. */
+    item = (gcsBUFITEM_STRING_PTR) _AllocateItem(OutputBuffer, allocSize);
+
+    /* Compute the initial message data pointer. */
+    messageData = (gctUINT8_PTR) (item + 1);
+
+    /* Align the data pointer as necessary. */
+#if gcdALIGNBYSIZE
+    alignment = gcmPTRALIGNMENT(messageData, gcdVARARG_ALIGNMENT);
+    messageData += alignment;
+#endif
+
+    /* Set item data. */
+    item->type            = gcvBUFITEM_STRING;
+    item->indent          = Indent;
+    item->message         = Message;
+    item->messageData     = messageData;
+    item->messageDataSize = ArgumentSize;
+
+    /* Copy argument value. */
+    if (ArgumentSize != 0)
+    {
+        gcmkMEMCPY(messageData, Data, ArgumentSize);
+    }
+
+#if gcdALIGNBYSIZE
+    /* Compute the actual node size. */
+    size = gcmSIZEOF(gcsBUFITEM_STRING) + ArgumentSize + alignment;
+
+    /* Free extra memory if any. */
+    freeSize = allocSize - size;
+    if (freeSize != 0)
+    {
+        _FreeExtraSpace(OutputBuffer, item, size, freeSize);
+    }
+#endif
+}
+
+static void
+_AppendCopy(
+    IN gcsBUFFERED_OUTPUT_PTR OutputBuffer,
+    IN gctINT Indent,
+    IN gctCONST_STRING Message,
+    IN gctUINT ArgumentSize,
+    IN gctPOINTER Data
+    )
+{
+    gctUINT8_PTR messageData;
+    gcsBUFITEM_COPY_PTR item;
+    gctINT allocSize;
+    gctINT messageLength;
+    gctCONST_STRING message;
+
+#if gcdALIGNBYSIZE
+    gctUINT alignment;
+    gctINT size, freeSize;
+#endif
+
+    /* Get the length of the string. */
+    messageLength = strlen(Message) + 1;
+
+    /* Determine the maximum item size. */
+    allocSize
+        = gcmSIZEOF(gcsBUFITEM_COPY)
+        + messageLength
+        + ArgumentSize
+        + gcdVARARG_ALIGNMENT;
+
+    /* Allocate prefix item. */
+    item = (gcsBUFITEM_COPY_PTR) _AllocateItem(OutputBuffer, allocSize);
+
+    /* Determine the message placement. */
+    message = (gctCONST_STRING) (item + 1);
+
+    /* Compute the initial message data pointer. */
+    messageData = (gctUINT8_PTR) message + messageLength;
+
+    /* Align the data pointer as necessary. */
+#if gcdALIGNBYSIZE
+    if (ArgumentSize == 0)
+    {
+        alignment = 0;
+    }
+    else
+    {
+        alignment = gcmPTRALIGNMENT(messageData, gcdVARARG_ALIGNMENT);
+        messageData += alignment;
+    }
+#endif
+
+    /* Set item data. */
+    item->type            = gcvBUFITEM_COPY;
+    item->indent          = Indent;
+    item->messageData     = messageData;
+    item->messageDataSize = ArgumentSize;
+
+    /* Copy the message. */
+    gcmkMEMCPY((gctPOINTER) message, Message, messageLength);
+
+    /* Copy argument value. */
+    if (ArgumentSize != 0)
+    {
+        gcmkMEMCPY(messageData, Data, ArgumentSize);
+    }
+
+#if gcdALIGNBYSIZE
+    /* Compute the actual node size. */
+    size
+        = gcmSIZEOF(gcsBUFITEM_COPY)
+        + messageLength
+        + ArgumentSize
+        + alignment;
+
+    /* Free extra memory if any. */
+    freeSize = allocSize - size;
+    if (freeSize != 0)
+    {
+        _FreeExtraSpace(OutputBuffer, item, size, freeSize);
+    }
+#endif
+}
+
+static void
+_AppendBuffer(
+    IN gcsBUFFERED_OUTPUT_PTR OutputBuffer,
+    IN gctINT Indent,
+    IN gctPOINTER PrefixData,
+    IN gctPOINTER Data,
+    IN gctUINT Address,
+    IN gctUINT DataSize,
+    IN gceDUMP_BUFFER Type,
+    IN gctUINT32 DmaAddress
+    )
+{
+#if gcdHAVEPREFIX
+    gctUINT8_PTR prefixData;
+    gcsBUFITEM_BUFFER_PTR item;
+    gctINT allocSize;
+    gctPOINTER data;
+
+#if gcdALIGNBYSIZE
+    gctUINT alignment;
+    gctINT size, freeSize;
+#endif
+
+    gcmDBGASSERT(DataSize != 0, "%d", DataSize);
+    gcmDBGASSERT(Data != gcvNULL, "%p", Data);
+
+    /* Determine the maximum item size. */
+    allocSize
+        = gcmSIZEOF(gcsBUFITEM_BUFFER)
+        + gcdPREFIX_SIZE
+        + gcdPREFIX_ALIGNMENT
+        + DataSize;
+
+    /* Allocate prefix item. */
+    item = (gcsBUFITEM_BUFFER_PTR) _AllocateItem(OutputBuffer, allocSize);
+
+    /* Compute the initial prefix data pointer. */
+    prefixData = (gctUINT8_PTR) (item + 1);
+
+#if gcdALIGNBYSIZE
+    /* Align the data pointer as necessary. */
+    alignment = gcmPTRALIGNMENT(prefixData, gcdPREFIX_ALIGNMENT);
+    prefixData += alignment;
+#endif
+
+    /* Set item data. */
+    item->type       = gcvBUFITEM_BUFFER;
+    item->indent     = Indent;
+    item->bufferType = Type;
+    item->dataSize   = DataSize;
+    item->address    = Address;
+    item->prefixData = prefixData;
+
+#if gcdDMA_BUFFER_COUNT && (gcdTHREAD_BUFFERS == 1)
+    item->dmaAddress = DmaAddress;
+#endif
+
+    /* Copy prefix data. */
+    gcmkMEMCPY(prefixData, PrefixData, gcdPREFIX_SIZE);
+
+    /* Compute the data pointer. */
+    data = prefixData + gcdPREFIX_SIZE;
+
+    /* Copy argument value. */
+    gcmkMEMCPY(data, Data, DataSize);
+
+#if gcdALIGNBYSIZE
+    /* Compute the actual node size. */
+    size
+        = gcmSIZEOF(gcsBUFITEM_BUFFER)
+        + gcdPREFIX_SIZE
+        + alignment
+        + DataSize;
+
+    /* Free extra memory if any. */
+    freeSize = allocSize - size;
+    if (freeSize != 0)
+    {
+        _FreeExtraSpace(OutputBuffer, item, size, freeSize);
+    }
+#endif
+#else
+    gcsBUFITEM_BUFFER_PTR item;
+    gctINT size;
+
+    gcmDBGASSERT(DataSize != 0, "%d", DataSize);
+    gcmDBGASSERT(Data != gcvNULL, "%p", Data);
+
+    /* Determine the maximum item size. */
+    size = gcmSIZEOF(gcsBUFITEM_BUFFER) + DataSize;
+
+    /* Allocate prefix item. */
+    item = (gcsBUFITEM_BUFFER_PTR) _AllocateItem(OutputBuffer, size);
+
+    /* Set item data. */
+    item->type     = gcvBUFITEM_BUFFER;
+    item->indent   = Indent;
+    item->dataSize = DataSize;
+    item->address  = Address;
+
+    /* Copy argument value. */
+    gcmkMEMCPY(item + 1, Data, DataSize);
+#endif
+}
+#endif
+
+static gcmINLINE void
+_InitBuffers(
+    void
+    )
+{
+    int i;
+
+    if (_outputBufferHead == gcvNULL)
+    {
+        for (i = 0; i < gcdTHREAD_BUFFERS; i += 1)
+        {
+            if (_outputBufferTail == gcvNULL)
+            {
+                _outputBufferHead = &_outputBuffer[i];
+            }
+            else
+            {
+                _outputBufferTail->next = &_outputBuffer[i];
+            }
+
+#if gcdTHREAD_BUFFERS > 1
+            _outputBuffer[i].threadID = ~0U;
+#endif
+
+            _outputBuffer[i].prev = _outputBufferTail;
+            _outputBuffer[i].next =  gcvNULL;
+
+            _outputBufferTail = &_outputBuffer[i];
+        }
+    }
+}
+
+static gcmINLINE gcsBUFFERED_OUTPUT_PTR
+_GetOutputBuffer(
+    void
+    )
+{
+    gcsBUFFERED_OUTPUT_PTR outputBuffer;
+
+#if gcdTHREAD_BUFFERS > 1
+    /* Get the current thread ID. */
+    gctUINT32 ThreadID = gcmkGETTHREADID();
+
+    /* Locate the output buffer for the thread. */
+    outputBuffer = _outputBufferHead;
+
+    while (outputBuffer != gcvNULL)
+    {
+        if (outputBuffer->threadID == ThreadID)
+        {
+            break;
+        }
+
+        outputBuffer = outputBuffer->next;
+    }
+
+    /* No matching buffer found? */
+    if (outputBuffer == gcvNULL)
+    {
+        /* Get the tail for the buffer. */
+        outputBuffer = _outputBufferTail;
+
+        /* Move it to the head. */
+        _outputBufferTail       = _outputBufferTail->prev;
+        _outputBufferTail->next = gcvNULL;
+
+        outputBuffer->prev = gcvNULL;
+        outputBuffer->next = _outputBufferHead;
+
+        _outputBufferHead->prev = outputBuffer;
+        _outputBufferHead       = outputBuffer;
+
+        /* Reset the buffer. */
+        outputBuffer->threadID   = ThreadID;
+#if gcdBUFFERED_OUTPUT
+        outputBuffer->start      = 0;
+        outputBuffer->index      = 0;
+        outputBuffer->count      = 0;
+#endif
+#if gcdSHOW_LINE_NUMBER
+        outputBuffer->lineNumber = 0;
+#endif
+    }
+#else
+    outputBuffer = _outputBufferHead;
+#endif
+
+    return outputBuffer;
+}
+
+static gcmINLINE int _GetArgumentSize(
+    IN gctCONST_STRING Message
+    )
+{
+    int i, count;
+
+    gcmDBGASSERT(Message != gcvNULL, "%p", Message);
+
+    for (i = 0, count = 0; Message[i]; i += 1)
+    {
+        if (Message[i] == '%')
+        {
+            count += 1;
+        }
+    }
+
+    return count * gcmSIZEOF(gctUINT32);
+}
+
+#if gcdHAVEPREFIX
+static void
+_InitPrefixData(
+    IN gcsBUFFERED_OUTPUT_PTR OutputBuffer,
+    IN gctPOINTER Data
+    )
+{
+    gctUINT8_PTR data  = (gctUINT8_PTR) Data;
+
+#if gcdSHOW_TIME
+    {
+        gctUINT64 time;
+        gckOS_GetProfileTick(&time);
+        gcmkALIGNPTR(gctUINT8_PTR, data, gcmSIZEOF(gctUINT64));
+        * ((gctUINT64_PTR) data) = time;
+        data += gcmSIZEOF(gctUINT64);
+    }
+#endif
+
+#if gcdSHOW_LINE_NUMBER
+    {
+        gcmkALIGNPTR(gctUINT8_PTR, data, gcmSIZEOF(gctUINT64));
+        * ((gctUINT64_PTR) data) = OutputBuffer->lineNumber;
+        data += gcmSIZEOF(gctUINT64);
+    }
+#endif
+
+#if gcdSHOW_PROCESS_ID
+    {
+        gcmkALIGNPTR(gctUINT8_PTR, data, gcmSIZEOF(gctUINT32));
+        * ((gctUINT32_PTR) data) = gcmkGETPROCESSID();
+        data += gcmSIZEOF(gctUINT32);
+    }
+#endif
+
+#if gcdSHOW_THREAD_ID
+    {
+        gcmkALIGNPTR(gctUINT8_PTR, data, gcmSIZEOF(gctUINT32));
+        * ((gctUINT32_PTR) data) = gcmkGETTHREADID();
+    }
+#endif
+}
+#endif
+
+static void
+_Print(
+    IN gctUINT ArgumentSize,
+    IN gctBOOL CopyMessage,
+    IN gctCONST_STRING Message,
+    IN gctARGUMENTS * Arguments
+    )
+{
+    gcsBUFFERED_OUTPUT_PTR outputBuffer;
+    gcmkDECLARE_LOCK(lockHandle);
+
+    gcmkLOCKSECTION(lockHandle);
+
+    /* Initialize output buffer list. */
+    _InitBuffers();
+
+    /* Locate the proper output buffer. */
+    outputBuffer = _GetOutputBuffer();
+
+    /* Update the line number. */
+#if gcdSHOW_LINE_NUMBER
+    outputBuffer->lineNumber += 1;
+#endif
+
+    /* Print prefix. */
+#if gcdHAVEPREFIX
+    {
+        gctUINT8_PTR alignedPrefixData;
+        gctUINT8 prefixData[gcdPREFIX_SIZE + gcdPREFIX_ALIGNMENT];
+
+        /* Compute aligned pointer. */
+        alignedPrefixData = prefixData;
+        gcmkALIGNPTR(gctUINT8_PTR, alignedPrefixData, gcdPREFIX_ALIGNMENT);
+
+        /* Initialize the prefix data. */
+        _InitPrefixData(outputBuffer, alignedPrefixData);
+
+        /* Print the prefix. */
+        gcdOUTPUTPREFIX(outputBuffer, alignedPrefixData);
+    }
+#endif
+
+    /* Form the indent string. */
+    if (strncmp(Message, "--", 2) == 0)
+    {
+        outputBuffer->indent -= 2;
+    }
+
+    /* Print the message. */
+    if (CopyMessage)
+    {
+        gcdOUTPUTCOPY(
+            outputBuffer, outputBuffer->indent,
+            Message, ArgumentSize, (gctPOINTER) Arguments
+            );
+    }
+    else
+    {
+        gcdOUTPUTSTRING(
+            outputBuffer, outputBuffer->indent,
+            Message, ArgumentSize, ((gctPOINTER) Arguments)
+            );
+    }
+
+    /* Check increasing indent. */
+    if (strncmp(Message, "++", 2) == 0)
+    {
+        outputBuffer->indent += 2;
+    }
+
+    gcmkUNLOCKSECTION(lockHandle);
+}
+
+
+/******************************************************************************\
+********************************* Debug Macros *********************************
+\******************************************************************************/
+
+#ifdef __QNXNTO__
+
+extern volatile unsigned g_nQnxInIsrs;
+
+#define gcmDEBUGPRINT(ArgumentSize, CopyMessage, Message) \
+{ \
+    if (atomic_add_value(&g_nQnxInIsrs, 1) == 0) \
+    { \
+        gctARGUMENTS __arguments__; \
+        gcmkARGUMENTS_START(__arguments__, Message); \
+        _Print(ArgumentSize, CopyMessage, Message, &__arguments__); \
+        gcmkARGUMENTS_END(__arguments__); \
+    } \
+    atomic_sub(&g_nQnxInIsrs, 1); \
+}
+
+#else
+
+#define gcmDEBUGPRINT(ArgumentSize, CopyMessage, Message) \
+{ \
+    gctARGUMENTS __arguments__; \
+    gcmkARGUMENTS_START(__arguments__, Message); \
+    _Print(ArgumentSize, CopyMessage, Message, &__arguments__); \
+    gcmkARGUMENTS_END(__arguments__); \
+}
+
+#endif
+
+/******************************************************************************\
+********************************** Debug Code **********************************
+\******************************************************************************/
+
+/*******************************************************************************
+**
+**  gckOS_Print
+**
+**  Send a message to the debugger.
+**
+**  INPUT:
+**
+**      gctCONST_STRING Message
+**          Pointer to message.
+**
+**      ...
+**          Optional arguments.
+**
+**  OUTPUT:
+**
+**      Nothing.
+*/
+
+void
+gckOS_Print(
+    IN gctCONST_STRING Message,
+    ...
+    )
+{
+    gcmDEBUGPRINT(_GetArgumentSize(Message), gcvFALSE, Message);
+}
+
+/*******************************************************************************
+**
+**  gckOS_PrintN
+**
+**  Send a message to the debugger.
+**
+**  INPUT:
+**
+**      gctUINT ArgumentSize
+**          The size of the optional arguments in bytes.
+**
+**      gctCONST_STRING Message
+**          Pointer to message.
+**
+**      ...
+**          Optional arguments.
+**
+**  OUTPUT:
+**
+**      Nothing.
+*/
+
+void
+gckOS_PrintN(
+    IN gctUINT ArgumentSize,
+    IN gctCONST_STRING Message,
+    ...
+    )
+{
+    gcmDEBUGPRINT(ArgumentSize, gcvFALSE, Message);
+}
+
+/*******************************************************************************
+**
+**  gckOS_CopyPrint
+**
+**  Send a message to the debugger. If in buffered output mode, the entire
+**  message will be copied into the buffer instead of using the pointer to
+**  the string.
+**
+**  INPUT:
+**
+**      gctCONST_STRING Message
+**          Pointer to message.
+**
+**      ...
+**          Optional arguments.
+**
+**  OUTPUT:
+**
+**      Nothing.
+*/
+
+void
+gckOS_CopyPrint(
+    IN gctCONST_STRING Message,
+    ...
+    )
+{
+    gcmDEBUGPRINT(_GetArgumentSize(Message), gcvTRUE, Message);
+}
+
+/*******************************************************************************
+**
+**  gckOS_DumpBuffer
+**
+**  Print the contents of the specified buffer.
+**
+**  INPUT:
+**
+**      gckOS Os
+**          Pointer to gckOS object.
+**
+**      gctPOINTER Buffer
+**          Pointer to the buffer to print.
+**
+**      gctUINT Size
+**          Size of the buffer.
+**
+**      gceDUMP_BUFFER Type
+**          Buffer type.
+**
+**  OUTPUT:
+**
+**      Nothing.
+*/
+
+void
+gckOS_DumpBuffer(
+    IN gckOS Os,
+    IN gctPOINTER Buffer,
+    IN gctUINT Size,
+    IN gceDUMP_BUFFER Type,
+    IN gctBOOL CopyMessage
+    )
+{
+    gctPHYS_ADDR_T physical;
+    gctUINT32 address                   = 0;
+    gcsBUFFERED_OUTPUT_PTR outputBuffer = gcvNULL;
+    static gctBOOL userLocked;
+    gctCHAR *buffer                     = (gctCHAR*)Buffer;
+
+    gcmkDECLARE_LOCK(lockHandle);
+
+    /* Request lock when not coming from user,
+       or coming from user and not yet locked
+          and message is starting with @[. */
+    if (Type == gceDUMP_BUFFER_FROM_USER)
+    {
+        if ((Size > 2)
+        && (buffer[0] == '@')
+        && (buffer[1] == '['))
+        {
+            /* Beginning of a user dump. */
+            gcmkLOCKSECTION(lockHandle);
+            userLocked = gcvTRUE;
+        }
+        /* Else, let it pass through. */
+    }
+    else
+    {
+        gcmkLOCKSECTION(lockHandle);
+        userLocked = gcvFALSE;
+    }
+
+    if (Buffer != gcvNULL)
+    {
+        /* Initialize output buffer list. */
+        _InitBuffers();
+
+        /* Locate the proper output buffer. */
+        outputBuffer = _GetOutputBuffer();
+
+        /* Update the line number. */
+#if gcdSHOW_LINE_NUMBER
+        outputBuffer->lineNumber += 1;
+#endif
+
+        /* Get the physical address of the buffer. */
+        if (Type != gceDUMP_BUFFER_FROM_USER)
+        {
+            gcmkVERIFY_OK(gckOS_GetPhysicalAddress(Os, Buffer, &physical));
+            gcmkSAFECASTPHYSADDRT(address, physical);
+        }
+        else
+        {
+            address = 0;
+        }
+
+#if gcdHAVEPREFIX
+        {
+            gctUINT8_PTR alignedPrefixData;
+            gctUINT8 prefixData[gcdPREFIX_SIZE + gcdPREFIX_ALIGNMENT];
+
+            /* Compute aligned pointer. */
+            alignedPrefixData = prefixData;
+            gcmkALIGNPTR(gctUINT8_PTR, alignedPrefixData, gcdPREFIX_ALIGNMENT);
+
+            /* Initialize the prefix data. */
+            _InitPrefixData(outputBuffer, alignedPrefixData);
+
+            /* Print/schedule the buffer. */
+            gcdOUTPUTBUFFER(
+                outputBuffer, outputBuffer->indent,
+                alignedPrefixData, Buffer, address, Size, Type, 0
+                );
+        }
+#else
+        /* Print/schedule the buffer. */
+        if (Type == gceDUMP_BUFFER_FROM_USER)
+        {
+            gcdOUTPUTSTRING(
+                outputBuffer, outputBuffer->indent,
+                Buffer, 0, gcvNULL
+                );
+        }
+        else
+        {
+            gcdOUTPUTBUFFER(
+                outputBuffer, outputBuffer->indent,
+                gcvNULL, Buffer, address, Size, Type, 0
+                );
+        }
+#endif
+    }
+
+    /* Unlock when not coming from user,
+       or coming from user and not yet locked. */
+    if (userLocked)
+    {
+        if ((Size > 4)
+        && (buffer[0] == ']')
+        && (buffer[1] == ' ')
+        && (buffer[2] == '-')
+        && (buffer[3] == '-'))
+        {
+            /* End of a user dump. */
+            gcmkUNLOCKSECTION(lockHandle);
+            userLocked = gcvFALSE;
+        }
+        /* Else, let it pass through, don't unlock. */
+    }
+    else
+    {
+        gcmkUNLOCKSECTION(lockHandle);
+    }
+}
+
+/*******************************************************************************
+**
+**  gckOS_DebugTrace
+**
+**  Send a leveled message to the debugger.
+**
+**  INPUT:
+**
+**      gctUINT32 Level
+**          Debug level of message.
+**
+**      gctCONST_STRING Message
+**          Pointer to message.
+**
+**      ...
+**          Optional arguments.
+**
+**  OUTPUT:
+**
+**      Nothing.
+*/
+
+void
+gckOS_DebugTrace(
+    IN gctUINT32 Level,
+    IN gctCONST_STRING Message,
+    ...
+    )
+{
+    if (Level > _debugLevel)
+    {
+        return;
+    }
+
+    gcmDEBUGPRINT(_GetArgumentSize(Message), gcvFALSE, Message);
+}
+
+/*******************************************************************************
+**
+**  gckOS_DebugTraceN
+**
+**  Send a leveled message to the debugger.
+**
+**  INPUT:
+**
+**      gctUINT32 Level
+**          Debug level of message.
+**
+**      gctUINT ArgumentSize
+**          The size of the optional arguments in bytes.
+**
+**      gctCONST_STRING Message
+**          Pointer to message.
+**
+**      ...
+**          Optional arguments.
+**
+**  OUTPUT:
+**
+**      Nothing.
+*/
+
+void
+gckOS_DebugTraceN(
+    IN gctUINT32 Level,
+    IN gctUINT ArgumentSize,
+    IN gctCONST_STRING Message,
+    ...
+    )
+{
+    if (Level > _debugLevel)
+    {
+        return;
+    }
+
+    gcmDEBUGPRINT(ArgumentSize, gcvFALSE, Message);
+}
+
+/*******************************************************************************
+**
+**  gckOS_DebugTraceZone
+**
+**  Send a leveled and zoned message to the debugger.
+**
+**  INPUT:
+**
+**      gctUINT32 Level
+**          Debug level for message.
+**
+**      gctUINT32 Zone
+**          Debug zone for message.
+**
+**      gctCONST_STRING Message
+**          Pointer to message.
+**
+**      ...
+**          Optional arguments.
+**
+**  OUTPUT:
+**
+**      Nothing.
+*/
+
+void
+gckOS_DebugTraceZone(
+    IN gctUINT32 Level,
+    IN gctUINT32 Zone,
+    IN gctCONST_STRING Message,
+    ...
+    )
+{
+    if ((Level > _debugLevel) || !(Zone & _debugZones))
+    {
+        return;
+    }
+
+    gcmDEBUGPRINT(_GetArgumentSize(Message), gcvFALSE, Message);
+}
+
+/*******************************************************************************
+**
+**  gckOS_DebugTraceZoneN
+**
+**  Send a leveled and zoned message to the debugger.
+**
+**  INPUT:
+**
+**      gctUINT32 Level
+**          Debug level for message.
+**
+**      gctUINT32 Zone
+**          Debug zone for message.
+**
+**      gctUINT ArgumentSize
+**          The size of the optional arguments in bytes.
+**
+**      gctCONST_STRING Message
+**          Pointer to message.
+**
+**      ...
+**          Optional arguments.
+**
+**  OUTPUT:
+**
+**      Nothing.
+*/
+
+void
+gckOS_DebugTraceZoneN(
+    IN gctUINT32 Level,
+    IN gctUINT32 Zone,
+    IN gctUINT ArgumentSize,
+    IN gctCONST_STRING Message,
+    ...
+    )
+{
+    if ((Level > _debugLevel) || !(Zone & _debugZones))
+    {
+        return;
+    }
+
+    gcmDEBUGPRINT(ArgumentSize, gcvFALSE, Message);
+}
+
+/*******************************************************************************
+**
+**  gckOS_DebugBreak
+**
+**  Break into the debugger.
+**
+**  INPUT:
+**
+**      Nothing.
+**
+**  OUTPUT:
+**
+**      Nothing.
+*/
+void
+gckOS_DebugBreak(
+    void
+    )
+{
+    gckOS_DebugTrace(gcvLEVEL_ERROR, "%s(%d)", __FUNCTION__, __LINE__);
+}
+
+/*******************************************************************************
+**
+**  gckOS_DebugFatal
+**
+**  Send a message to the debugger and break into the debugger.
+**
+**  INPUT:
+**
+**      gctCONST_STRING Message
+**          Pointer to message.
+**
+**      ...
+**          Optional arguments.
+**
+**  OUTPUT:
+**
+**      Nothing.
+*/
+void
+gckOS_DebugFatal(
+    IN gctCONST_STRING Message,
+    ...
+    )
+{
+    gcmkPRINT_VERSION();
+    gcmDEBUGPRINT(_GetArgumentSize(Message), gcvFALSE, Message);
+
+    /* Break into the debugger. */
+    gckOS_DebugBreak();
+}
+
+/*******************************************************************************
+**
+**  gckOS_SetDebugLevel
+**
+**  Set the debug level.
+**
+**  INPUT:
+**
+**      gctUINT32 Level
+**          New debug level.
+**
+**  OUTPUT:
+**
+**      Nothing.
+*/
+
+void
+gckOS_SetDebugLevel(
+    IN gctUINT32 Level
+    )
+{
+    _debugLevel = Level;
+}
+
+/*******************************************************************************
+**
+**  gckOS_SetDebugZone
+**
+**  Set the debug zone.
+**
+**  INPUT:
+**
+**      gctUINT32 Zone
+**          New debug zone.
+**
+**  OUTPUT:
+**
+**      Nothing.
+*/
+void
+gckOS_SetDebugZone(
+    IN gctUINT32 Zone
+    )
+{
+    _debugZones = Zone;
+}
+
+/*******************************************************************************
+**
+**  gckOS_SetDebugLevelZone
+**
+**  Set the debug level and zone.
+**
+**  INPUT:
+**
+**      gctUINT32 Level
+**          New debug level.
+**
+**      gctUINT32 Zone
+**          New debug zone.
+**
+**  OUTPUT:
+**
+**      Nothing.
+*/
+
+void
+gckOS_SetDebugLevelZone(
+    IN gctUINT32 Level,
+    IN gctUINT32 Zone
+    )
+{
+    _debugLevel = Level;
+    _debugZones = Zone;
+}
+
+/*******************************************************************************
+**
+**  gckOS_SetDebugZones
+**
+**  Enable or disable debug zones.
+**
+**  INPUT:
+**
+**      gctUINT32 Zones
+**          Debug zones to enable or disable.
+**
+**      gctBOOL Enable
+**          Set to gcvTRUE to enable the zones (or the Zones with the current
+**          zones) or gcvFALSE to disable the specified Zones.
+**
+**  OUTPUT:
+**
+**      Nothing.
+*/
+
+void
+gckOS_SetDebugZones(
+    IN gctUINT32 Zones,
+    IN gctBOOL Enable
+    )
+{
+    if (Enable)
+    {
+        /* Enable the zones. */
+        _debugZones |= Zones;
+    }
+    else
+    {
+        /* Disable the zones. */
+        _debugZones &= ~Zones;
+    }
+}
+
+/*******************************************************************************
+**
+**  gckOS_Verify
+**
+**  Called to verify the result of a function call.
+**
+**  INPUT:
+**
+**      gceSTATUS Status
+**          Function call result.
+**
+**  OUTPUT:
+**
+**      Nothing.
+*/
+
+void
+gckOS_Verify(
+    IN gceSTATUS status
+    )
+{
+    _lastError = status;
+}
+
+/*******************************************************************************
+**
+**  gckOS_DebugFlush
+**
+**  Force messages to be flushed out.
+**
+**  INPUT:
+**
+**      gctCONST_STRING CallerName
+**          Name of the caller function.
+**
+**      gctUINT LineNumber
+**          Line number of the caller.
+**
+**      gctUINT32 DmaAddress
+**          The current DMA address or ~0U to ignore.
+**
+**  OUTPUT:
+**
+**      Nothing.
+*/
+
+void
+gckOS_DebugFlush(
+    gctCONST_STRING CallerName,
+    gctUINT LineNumber,
+    gctUINT32 DmaAddress
+    )
+{
+#if gcdBUFFERED_OUTPUT
+    _DirectPrint("\nFlush requested by %s(%d).\n\n", CallerName, LineNumber);
+    _Flush(DmaAddress);
+#endif
+}
+gctCONST_STRING
+gckOS_DebugStatus2Name(
+    gceSTATUS status
+    )
+{
+    switch (status)
+    {
+    case gcvSTATUS_OK:
+        return "gcvSTATUS_OK";
+    case gcvSTATUS_TRUE:
+        return "gcvSTATUS_TRUE";
+    case gcvSTATUS_NO_MORE_DATA:
+        return "gcvSTATUS_NO_MORE_DATA";
+    case gcvSTATUS_CACHED:
+        return "gcvSTATUS_CACHED";
+    case gcvSTATUS_MIPMAP_TOO_LARGE:
+        return "gcvSTATUS_MIPMAP_TOO_LARGE";
+    case gcvSTATUS_NAME_NOT_FOUND:
+        return "gcvSTATUS_NAME_NOT_FOUND";
+    case gcvSTATUS_NOT_OUR_INTERRUPT:
+        return "gcvSTATUS_NOT_OUR_INTERRUPT";
+    case gcvSTATUS_MISMATCH:
+        return "gcvSTATUS_MISMATCH";
+    case gcvSTATUS_MIPMAP_TOO_SMALL:
+        return "gcvSTATUS_MIPMAP_TOO_SMALL";
+    case gcvSTATUS_LARGER:
+        return "gcvSTATUS_LARGER";
+    case gcvSTATUS_SMALLER:
+        return "gcvSTATUS_SMALLER";
+    case gcvSTATUS_CHIP_NOT_READY:
+        return "gcvSTATUS_CHIP_NOT_READY";
+    case gcvSTATUS_NEED_CONVERSION:
+        return "gcvSTATUS_NEED_CONVERSION";
+    case gcvSTATUS_SKIP:
+        return "gcvSTATUS_SKIP";
+    case gcvSTATUS_DATA_TOO_LARGE:
+        return "gcvSTATUS_DATA_TOO_LARGE";
+    case gcvSTATUS_INVALID_CONFIG:
+        return "gcvSTATUS_INVALID_CONFIG";
+    case gcvSTATUS_CHANGED:
+        return "gcvSTATUS_CHANGED";
+    case gcvSTATUS_NOT_SUPPORT_DITHER:
+        return "gcvSTATUS_NOT_SUPPORT_DITHER";
+
+    case gcvSTATUS_INVALID_ARGUMENT:
+        return "gcvSTATUS_INVALID_ARGUMENT";
+    case gcvSTATUS_INVALID_OBJECT:
+        return "gcvSTATUS_INVALID_OBJECT";
+    case gcvSTATUS_OUT_OF_MEMORY:
+        return "gcvSTATUS_OUT_OF_MEMORY";
+    case gcvSTATUS_MEMORY_LOCKED:
+        return "gcvSTATUS_MEMORY_LOCKED";
+    case gcvSTATUS_MEMORY_UNLOCKED:
+        return "gcvSTATUS_MEMORY_UNLOCKED";
+    case gcvSTATUS_HEAP_CORRUPTED:
+        return "gcvSTATUS_HEAP_CORRUPTED";
+    case gcvSTATUS_GENERIC_IO:
+        return "gcvSTATUS_GENERIC_IO";
+    case gcvSTATUS_INVALID_ADDRESS:
+        return "gcvSTATUS_INVALID_ADDRESS";
+    case gcvSTATUS_CONTEXT_LOSSED:
+        return "gcvSTATUS_CONTEXT_LOSSED";
+    case gcvSTATUS_TOO_COMPLEX:
+        return "gcvSTATUS_TOO_COMPLEX";
+    case gcvSTATUS_BUFFER_TOO_SMALL:
+        return "gcvSTATUS_BUFFER_TOO_SMALL";
+    case gcvSTATUS_INTERFACE_ERROR:
+        return "gcvSTATUS_INTERFACE_ERROR";
+    case gcvSTATUS_NOT_SUPPORTED:
+        return "gcvSTATUS_NOT_SUPPORTED";
+    case gcvSTATUS_MORE_DATA:
+        return "gcvSTATUS_MORE_DATA";
+    case gcvSTATUS_TIMEOUT:
+        return "gcvSTATUS_TIMEOUT";
+    case gcvSTATUS_OUT_OF_RESOURCES:
+        return "gcvSTATUS_OUT_OF_RESOURCES";
+    case gcvSTATUS_INVALID_DATA:
+        return "gcvSTATUS_INVALID_DATA";
+    case gcvSTATUS_INVALID_MIPMAP:
+        return "gcvSTATUS_INVALID_MIPMAP";
+    case gcvSTATUS_NOT_FOUND:
+        return "gcvSTATUS_NOT_FOUND";
+    case gcvSTATUS_NOT_ALIGNED:
+        return "gcvSTATUS_NOT_ALIGNED";
+    case gcvSTATUS_INVALID_REQUEST:
+        return "gcvSTATUS_INVALID_REQUEST";
+    case gcvSTATUS_GPU_NOT_RESPONDING:
+        return "gcvSTATUS_GPU_NOT_RESPONDING";
+    case gcvSTATUS_TIMER_OVERFLOW:
+        return "gcvSTATUS_TIMER_OVERFLOW";
+    case gcvSTATUS_VERSION_MISMATCH:
+        return "gcvSTATUS_VERSION_MISMATCH";
+    case gcvSTATUS_LOCKED:
+        return "gcvSTATUS_LOCKED";
+    case gcvSTATUS_INTERRUPTED:
+        return "gcvSTATUS_INTERRUPTED";
+    case gcvSTATUS_DEVICE:
+        return "gcvSTATUS_DEVICE";
+    case gcvSTATUS_NOT_MULTI_PIPE_ALIGNED:
+        return "gcvSTATUS_NOT_MULTI_PIPE_ALIGNED";
+
+    /* Linker errors. */
+    case gcvSTATUS_GLOBAL_TYPE_MISMATCH:
+        return "gcvSTATUS_GLOBAL_TYPE_MISMATCH";
+    case gcvSTATUS_TOO_MANY_ATTRIBUTES:
+        return "gcvSTATUS_TOO_MANY_ATTRIBUTES";
+    case gcvSTATUS_TOO_MANY_UNIFORMS:
+        return "gcvSTATUS_TOO_MANY_UNIFORMS";
+    case gcvSTATUS_TOO_MANY_SAMPLER:
+        return "gcvSTATUS_TOO_MANY_SAMPLER";
+    case gcvSTATUS_TOO_MANY_VARYINGS:
+        return "gcvSTATUS_TOO_MANY_VARYINGS";
+    case gcvSTATUS_UNDECLARED_VARYING:
+        return "gcvSTATUS_UNDECLARED_VARYING";
+    case gcvSTATUS_VARYING_TYPE_MISMATCH:
+        return "gcvSTATUS_VARYING_TYPE_MISMATCH";
+    case gcvSTATUS_MISSING_MAIN:
+        return "gcvSTATUS_MISSING_MAIN";
+    case gcvSTATUS_NAME_MISMATCH:
+        return "gcvSTATUS_NAME_MISMATCH";
+    case gcvSTATUS_INVALID_INDEX:
+        return "gcvSTATUS_INVALID_INDEX";
+    case gcvSTATUS_UNIFORM_MISMATCH:
+        return "gcvSTATUS_UNIFORM_MISMATCH";
+    case gcvSTATUS_UNSAT_LIB_SYMBOL:
+        return "gcvSTATUS_UNSAT_LIB_SYMBOL";
+    case gcvSTATUS_TOO_MANY_SHADERS:
+        return "gcvSTATUS_TOO_MANY_SHADERS";
+    case gcvSTATUS_LINK_INVALID_SHADERS:
+        return "gcvSTATUS_LINK_INVALID_SHADERS";
+    case gcvSTATUS_CS_NO_WORKGROUP_SIZE:
+        return "gcvSTATUS_CS_NO_WORKGROUP_SIZE";
+    case gcvSTATUS_LINK_LIB_ERROR:
+        return "gcvSTATUS_LINK_LIB_ERROR";
+    case gcvSTATUS_SHADER_VERSION_MISMATCH:
+        return "gcvSTATUS_SHADER_VERSION_MISMATCH";
+    case gcvSTATUS_TOO_MANY_INSTRUCTION:
+        return "gcvSTATUS_TOO_MANY_INSTRUCTION";
+    case gcvSTATUS_SSBO_MISMATCH:
+        return "gcvSTATUS_SSBO_MISMATCH";
+    case gcvSTATUS_TOO_MANY_OUTPUT:
+        return "gcvSTATUS_TOO_MANY_OUTPUT";
+    case gcvSTATUS_TOO_MANY_INPUT:
+        return "gcvSTATUS_TOO_MANY_INPUT";
+    case gcvSTATUS_NOT_SUPPORT_CL:
+        return "gcvSTATUS_NOT_SUPPORT_CL";
+    case gcvSTATUS_NOT_SUPPORT_INTEGER:
+        return "gcvSTATUS_NOT_SUPPORT_INTEGER";
+
+    /* Compiler errors. */
+    case gcvSTATUS_COMPILER_FE_PREPROCESSOR_ERROR:
+        return "gcvSTATUS_COMPILER_FE_PREPROCESSOR_ERROR";
+    case gcvSTATUS_COMPILER_FE_PARSER_ERROR:
+        return "gcvSTATUS_COMPILER_FE_PARSER_ERROR";
+
+    default:
+        return "nil";
+    }
+}
+
+/*******************************************************************************
+***** Binary Trace *************************************************************
+*******************************************************************************/
+
+/*******************************************************************************
+**  _VerifyMessage
+**
+**  Verify a binary trace message, decode it to human readable string and print
+**  it.
+**
+**  ARGUMENTS:
+**
+**      gctCONST_STRING Buffer
+**          Pointer to buffer to store.
+**
+**      gctSIZE_T Bytes
+**          Buffer length.
+*/
+void
+_VerifyMessage(
+    IN gctCONST_STRING Buffer,
+    IN gctSIZE_T Bytes
+    )
+{
+    char arguments[150] = {0};
+    char format[100] = {0};
+
+    gctSTRING function;
+    gctPOINTER args;
+    gctUINT32 numArguments;
+    int i = 0;
+    gctUINT32 functionBytes;
+
+    gcsBINARY_TRACE_MESSAGE_PTR message = (gcsBINARY_TRACE_MESSAGE_PTR)Buffer;
+
+    /* Check signature. */
+    if (message->signature != 0x7FFFFFFF)
+    {
+        gcmkPRINT("Signature error");
+        return;
+    }
+
+    /* Get function name. */
+    function = (gctSTRING)&message->payload;
+    functionBytes = (gctUINT32)strlen(function) + 1;
+
+    /* Get arguments number. */
+    numArguments = message->numArguments;
+
+    /* Get arguments . */
+    args = function + functionBytes;
+
+    /* Prepare format string. */
+    while (numArguments--)
+    {
+        format[i++] = '%';
+        format[i++] = 'x';
+        format[i++] = ' ';
+    }
+
+    format[i] = '\0';
+
+    if (numArguments)
+    {
+        gcmkVSPRINTF(arguments, 150, format, (gctARGUMENTS *) &args);
+    }
+
+    gcmkPRINT("[%d](%d): %s(%d) %s",
+             message->pid,
+             message->tid,
+             function,
+             message->line,
+             arguments);
+}
+
+
+/*******************************************************************************
+**  gckOS_WriteToRingBuffer
+**
+**  Store a buffer to ring buffer.
+**
+**  ARGUMENTS:
+**
+**      gctCONST_STRING Buffer
+**          Pointer to buffer to store.
+**
+**      gctSIZE_T Bytes
+**          Buffer length.
+*/
+void
+gckOS_WriteToRingBuffer(
+    IN gctCONST_STRING Buffer,
+    IN gctSIZE_T Bytes
+    )
+{
+
+}
+
+/*******************************************************************************
+**  gckOS_BinaryTrace
+**
+**  Output a binary trace message.
+**
+**  ARGUMENTS:
+**
+**      gctCONST_STRING Function
+**          Pointer to function name.
+**
+**      gctINT Line
+**          Line number.
+**
+**      gctCONST_STRING Text OPTIONAL
+**          Optional pointer to a descriptive text.
+**
+**      ...
+**          Optional arguments to the descriptive text.
+*/
+void
+gckOS_BinaryTrace(
+    IN gctCONST_STRING Function,
+    IN gctINT Line,
+    IN gctCONST_STRING Text OPTIONAL,
+    ...
+    )
+{
+    static gctUINT32 messageSignature = 0x7FFFFFFF;
+    char buffer[gcdBINARY_TRACE_MESSAGE_SIZE];
+    gctUINT32 numArguments = 0;
+    gctUINT32 functionBytes;
+    gctUINT32 i = 0;
+    gctSTRING payload;
+    gcsBINARY_TRACE_MESSAGE_PTR message = (gcsBINARY_TRACE_MESSAGE_PTR)buffer;
+
+    /* Calculate arguments number. */
+    if (Text)
+    {
+        while (Text[i] != '\0')
+        {
+            if (Text[i] == '%')
+            {
+                numArguments++;
+            }
+            i++;
+        }
+    }
+
+    message->signature    = messageSignature;
+    message->pid          = gcmkGETPROCESSID();
+    message->tid          = gcmkGETTHREADID();
+    message->line         = Line;
+    message->numArguments = numArguments;
+
+    payload = (gctSTRING)&message->payload;
+
+    /* Function name. */
+    functionBytes = (gctUINT32)gcmkSTRLEN(Function) + 1;
+    gcmkMEMCPY(payload, Function, functionBytes);
+
+    /* Advance to next payload. */
+    payload += functionBytes;
+
+    /* Arguments value. */
+    if (numArguments)
+    {
+        gctARGUMENTS p;
+        gcmkARGUMENTS_START(p, Text);
+
+        for (i = 0; i < numArguments; ++i)
+        {
+            gctPOINTER value = gcmkARGUMENTS_ARG(p, gctPOINTER);
+            gcmkMEMCPY(payload, &value, gcmSIZEOF(gctPOINTER));
+            payload += gcmSIZEOF(gctPOINTER);
+        }
+
+        gcmkARGUMENTS_END(p);
+    }
+
+    gcmkASSERT(payload - buffer <= gcdBINARY_TRACE_MESSAGE_SIZE);
+
+
+    /* Send buffer to ring buffer. */
+    gckOS_WriteToRingBuffer(buffer, (gctUINT32)(payload - buffer));
+}
+
diff --git a/src/hal/kernel/gc_hal_kernel_event.c b/src/hal/kernel/gc_hal_kernel_event.c
new file mode 100755
index 0000000..d6c14fc
--- /dev/null
+++ b/src/hal/kernel/gc_hal_kernel_event.c
@@ -0,0 +1,3145 @@
+/****************************************************************************
+*
+*    The MIT License (MIT)
+*
+*    Copyright (c) 2014 Vivante Corporation
+*
+*    Permission is hereby granted, free of charge, to any person obtaining a
+*    copy of this software and associated documentation files (the "Software"),
+*    to deal in the Software without restriction, including without limitation
+*    the rights to use, copy, modify, merge, publish, distribute, sublicense,
+*    and/or sell copies of the Software, and to permit persons to whom the
+*    Software is furnished to do so, subject to the following conditions:
+*
+*    The above copyright notice and this permission notice shall be included in
+*    all copies or substantial portions of the Software.
+*
+*    THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+*    IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+*    FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+*    AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+*    LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+*    FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+*    DEALINGS IN THE SOFTWARE.
+*
+*****************************************************************************
+*
+*    The GPL License (GPL)
+*
+*    Copyright (C) 2014  Vivante Corporation
+*
+*    This program is free software; you can redistribute it and/or
+*    modify it under the terms of the GNU General Public License
+*    as published by the Free Software Foundation; either version 2
+*    of the License, or (at your option) any later version.
+*
+*    This program is distributed in the hope that it will be useful,
+*    but WITHOUT ANY WARRANTY; without even the implied warranty of
+*    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+*    GNU General Public License for more details.
+*
+*    You should have received a copy of the GNU General Public License
+*    along with this program; if not, write to the Free Software Foundation,
+*    Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+*
+*****************************************************************************
+*
+*    Note: This software is released under dual MIT and GPL licenses. A
+*    recipient may use this file under the terms of either the MIT license or
+*    GPL License. If you wish to use only one license not the other, you can
+*    indicate your decision by deleting one of the above license notices in your
+*    version of this file.
+*
+*****************************************************************************/
+
+
+#include "gc_hal_kernel_precomp.h"
+#include "gc_hal_kernel_buffer.h"
+
+#ifdef __QNXNTO__
+#include <atomic.h>
+#include "gc_hal_kernel_qnx.h"
+#endif
+
+#define _GC_OBJ_ZONE                    gcvZONE_EVENT
+
+#define gcdEVENT_ALLOCATION_COUNT       (4096 / gcmSIZEOF(gcsHAL_INTERFACE))
+#define gcdEVENT_MIN_THRESHOLD          4
+
+/******************************************************************************\
+********************************* Support Code *********************************
+\******************************************************************************/
+
+static gceSTATUS
+gckEVENT_AllocateQueue(
+    IN gckEVENT Event,
+    OUT gcsEVENT_QUEUE_PTR * Queue
+    )
+{
+    gceSTATUS status;
+
+    gcmkHEADER_ARG("Event=0x%x", Event);
+
+    /* Verify the arguments. */
+    gcmkVERIFY_OBJECT(Event, gcvOBJ_EVENT);
+    gcmkVERIFY_ARGUMENT(Queue != gcvNULL);
+
+    /* Do we have free queues? */
+    if (Event->freeList == gcvNULL)
+    {
+        gcmkONERROR(gcvSTATUS_OUT_OF_RESOURCES);
+    }
+
+    /* Move one free queue from the free list. */
+    * Queue = Event->freeList;
+    Event->freeList = Event->freeList->next;
+
+    /* Success. */
+    gcmkFOOTER_ARG("*Queue=0x%x", gcmOPT_POINTER(Queue));
+    return gcvSTATUS_OK;
+
+OnError:
+    /* Return the status. */
+    gcmkFOOTER();
+    return status;
+}
+
+static gceSTATUS
+gckEVENT_FreeQueue(
+    IN gckEVENT Event,
+    OUT gcsEVENT_QUEUE_PTR Queue
+    )
+{
+    gceSTATUS status = gcvSTATUS_OK;
+
+    gcmkHEADER_ARG("Event=0x%x", Event);
+
+    /* Verify the arguments. */
+    gcmkVERIFY_OBJECT(Event, gcvOBJ_EVENT);
+    gcmkVERIFY_ARGUMENT(Queue != gcvNULL);
+
+    /* Move one free queue from the free list. */
+    Queue->next = Event->freeList;
+    Event->freeList = Queue;
+
+    /* Success. */
+    gcmkFOOTER();
+    return status;
+}
+
+static gceSTATUS
+gckEVENT_FreeRecord(
+    IN gckEVENT Event,
+    IN gcsEVENT_PTR Record
+    )
+{
+    gceSTATUS status;
+    gctBOOL acquired = gcvFALSE;
+
+    gcmkHEADER_ARG("Event=0x%x Record=0x%x", Event, Record);
+
+    /* Verify the arguments. */
+    gcmkVERIFY_OBJECT(Event, gcvOBJ_EVENT);
+    gcmkVERIFY_ARGUMENT(Record != gcvNULL);
+
+    /* Acquire the mutex. */
+    gcmkONERROR(gckOS_AcquireMutex(Event->os,
+                                   Event->freeEventMutex,
+                                   gcvINFINITE));
+    acquired = gcvTRUE;
+
+    /* Push the record on the free list. */
+    Record->next           = Event->freeEventList;
+    Event->freeEventList   = Record;
+    Event->freeEventCount += 1;
+
+    /* Release the mutex. */
+    gcmkONERROR(gckOS_ReleaseMutex(Event->os, Event->freeEventMutex));
+
+    /* Success. */
+    gcmkFOOTER_NO();
+    return gcvSTATUS_OK;
+
+OnError:
+    /* Roll back. */
+    if (acquired)
+    {
+        gcmkVERIFY_OK(gckOS_ReleaseMutex(Event->os, Event->freeEventMutex));
+    }
+
+    /* Return the status. */
+    gcmkFOOTER();
+    return gcvSTATUS_OK;
+}
+
+static gceSTATUS
+gckEVENT_IsEmpty(
+    IN gckEVENT Event,
+    OUT gctBOOL_PTR IsEmpty
+    )
+{
+    gceSTATUS status;
+    gctSIZE_T i;
+
+    gcmkHEADER_ARG("Event=0x%x", Event);
+
+    /* Verify the arguments. */
+    gcmkVERIFY_OBJECT(Event, gcvOBJ_EVENT);
+    gcmkVERIFY_ARGUMENT(IsEmpty != gcvNULL);
+
+    /* Assume the event queue is empty. */
+    *IsEmpty = gcvTRUE;
+
+    /* Walk the event queue. */
+    for (i = 0; i < gcmCOUNTOF(Event->queues); ++i)
+    {
+        /* Check whether this event is in use. */
+        if (Event->queues[i].head != gcvNULL)
+        {
+            /* The event is in use, hence the queue is not empty. */
+            *IsEmpty = gcvFALSE;
+            break;
+        }
+    }
+
+    /* Try acquiring the mutex. */
+    status = gckOS_AcquireMutex(Event->os, Event->eventQueueMutex, 0);
+    if (status == gcvSTATUS_TIMEOUT)
+    {
+        /* Timeout - queue is no longer empty. */
+        *IsEmpty = gcvFALSE;
+    }
+    else
+    {
+        /* Bail out on error. */
+        gcmkONERROR(status);
+
+        /* Release the mutex. */
+        gcmkVERIFY_OK(gckOS_ReleaseMutex(Event->os, Event->eventQueueMutex));
+    }
+
+    /* Success. */
+    gcmkFOOTER_ARG("*IsEmpty=%d", gcmOPT_VALUE(IsEmpty));
+    return gcvSTATUS_OK;
+
+OnError:
+    /* Return the status. */
+    gcmkFOOTER();
+    return status;
+}
+
+static gceSTATUS
+_TryToIdleGPU(
+    IN gckEVENT Event
+)
+{
+    gceSTATUS status;
+    gctBOOL empty = gcvFALSE, idle = gcvFALSE;
+    gctBOOL powerLocked = gcvFALSE;
+    gckHARDWARE hardware;
+
+    gcmkHEADER_ARG("Event=0x%x", Event);
+
+    /* Verify the arguments. */
+    gcmkVERIFY_OBJECT(Event, gcvOBJ_EVENT);
+
+    /* Grab gckHARDWARE object. */
+    hardware = Event->kernel->hardware;
+    gcmkVERIFY_OBJECT(hardware, gcvOBJ_HARDWARE);
+
+    /* Check whether the event queue is empty. */
+    gcmkONERROR(gckEVENT_IsEmpty(Event, &empty));
+
+    if (empty)
+    {
+        status = gckOS_AcquireMutex(hardware->os, hardware->powerMutex, 0);
+        if (status == gcvSTATUS_TIMEOUT)
+        {
+            gcmkFOOTER_NO();
+            return gcvSTATUS_OK;
+        }
+
+        powerLocked = gcvTRUE;
+
+        /* Query whether the hardware is idle. */
+        gcmkONERROR(gckHARDWARE_QueryIdle(Event->kernel->hardware, &idle));
+
+        gcmkONERROR(gckOS_ReleaseMutex(hardware->os, hardware->powerMutex));
+        powerLocked = gcvFALSE;
+
+        if (idle)
+        {
+            /* Inform the system of idle GPU. */
+            gcmkONERROR(gckOS_Broadcast(Event->os,
+                                        Event->kernel->hardware,
+                                        gcvBROADCAST_GPU_IDLE));
+        }
+    }
+
+    gcmkFOOTER_NO();
+    return gcvSTATUS_OK;
+
+OnError:
+    if (powerLocked)
+    {
+        gcmkONERROR(gckOS_ReleaseMutex(hardware->os, hardware->powerMutex));
+    }
+
+    gcmkFOOTER();
+    return status;
+}
+
+static gceSTATUS
+__RemoveRecordFromProcessDB(
+    IN gckEVENT Event,
+    IN gcsEVENT_PTR Record
+    )
+{
+    gcmkHEADER_ARG("Event=0x%x Record=0x%x", Event, Record);
+    gcmkVERIFY_ARGUMENT(Record != gcvNULL);
+
+    while (Record != gcvNULL)
+    {
+        if (Record->info.command == gcvHAL_SIGNAL)
+        {
+            /* TODO: Find a better place to bind signal to hardware.*/
+            gcmkVERIFY_OK(gckOS_SignalSetHardware(Event->os,
+                        gcmUINT64_TO_PTR(Record->info.u.Signal.signal),
+                        Event->kernel->hardware));
+        }
+
+        if (Record->fromKernel)
+        {
+            /* No need to check db if event is from kernel. */
+            Record = Record->next;
+            continue;
+        }
+
+        switch (Record->info.command)
+        {
+        case gcvHAL_FREE_NON_PAGED_MEMORY:
+            gcmkVERIFY_OK(gckKERNEL_RemoveProcessDB(
+                Event->kernel,
+                Record->processID,
+                gcvDB_NON_PAGED,
+                gcmUINT64_TO_PTR(Record->info.u.FreeNonPagedMemory.logical)));
+            break;
+
+        case gcvHAL_FREE_CONTIGUOUS_MEMORY:
+            gcmkVERIFY_OK(gckKERNEL_RemoveProcessDB(
+                Event->kernel,
+                Record->processID,
+                gcvDB_CONTIGUOUS,
+                gcmUINT64_TO_PTR(Record->info.u.FreeContiguousMemory.logical)));
+            break;
+
+        case gcvHAL_UNLOCK_VIDEO_MEMORY:
+            gcmkVERIFY_OK(gckKERNEL_RemoveProcessDB(
+                Event->kernel,
+                Record->processID,
+                gcvDB_VIDEO_MEMORY_LOCKED,
+                gcmUINT64_TO_PTR(Record->info.u.UnlockVideoMemory.node)));
+            break;
+
+        case gcvHAL_UNMAP_USER_MEMORY:
+            gcmkVERIFY_OK(gckKERNEL_RemoveProcessDB(
+                Event->kernel,
+                Record->processID,
+                gcvDB_MAP_USER_MEMORY,
+                gcmINT2PTR(Record->info.u.UnmapUserMemory.info)));
+            break;
+
+        case gcvHAL_FREE_VIRTUAL_COMMAND_BUFFER:
+            gcmkVERIFY_OK(gckKERNEL_RemoveProcessDB(
+                Event->kernel,
+                Record->processID,
+                gcvDB_COMMAND_BUFFER,
+                gcmUINT64_TO_PTR(Record->info.u.FreeVirtualCommandBuffer.logical)));
+            break;
+
+        default:
+            break;
+        }
+
+        Record = Record->next;
+    }
+    gcmkFOOTER_NO();
+    return gcvSTATUS_OK;
+}
+
+gceSTATUS
+_ReleaseVideoMemoryHandle(
+    IN gckKERNEL Kernel,
+    IN OUT gcsEVENT_PTR Record,
+    IN OUT gcsHAL_INTERFACE * Interface
+    )
+{
+    gceSTATUS status;
+    gckVIDMEM_NODE nodeObject;
+    gctUINT32 handle;
+
+    switch(Interface->command)
+    {
+    case gcvHAL_UNLOCK_VIDEO_MEMORY:
+        handle = (gctUINT32)Interface->u.UnlockVideoMemory.node;
+
+        gcmkONERROR(gckVIDMEM_HANDLE_Lookup(
+            Kernel, Record->processID, handle, &nodeObject));
+
+        Record->info.u.UnlockVideoMemory.node = gcmPTR_TO_UINT64(nodeObject);
+
+        gckVIDMEM_HANDLE_Dereference(Kernel, Record->processID, handle);
+        break;
+
+    default:
+        break;
+    }
+
+    return gcvSTATUS_OK;
+OnError:
+    return status;
+}
+
+/*******************************************************************************
+**
+**  _QueryFlush
+**
+**  Check the type of surfaces which will be released by current event and
+**  determine the cache needed to flush.
+**
+*/
+static gceSTATUS
+_QueryFlush(
+    IN gckEVENT Event,
+    IN gcsEVENT_PTR Record,
+    OUT gceKERNEL_FLUSH *Flush
+    )
+{
+    gceKERNEL_FLUSH flush = 0;
+    gcmkHEADER_ARG("Event=0x%x Record=0x%x", Event, Record);
+    gcmkVERIFY_ARGUMENT(Record != gcvNULL);
+
+    while (Record != gcvNULL)
+    {
+        switch (Record->info.command)
+        {
+        case gcvHAL_UNLOCK_VIDEO_MEMORY:
+            switch(Record->info.u.UnlockVideoMemory.type)
+            {
+            case gcvSURF_TILE_STATUS:
+                flush |= gcvFLUSH_TILE_STATUS;
+                break;
+            case gcvSURF_RENDER_TARGET:
+                flush |= gcvFLUSH_COLOR;
+                break;
+            case gcvSURF_DEPTH:
+                flush |= gcvFLUSH_DEPTH;
+                break;
+            case gcvSURF_TEXTURE:
+                flush |= gcvFLUSH_TEXTURE;
+                break;
+            case gcvSURF_TYPE_UNKNOWN:
+                gcmkASSERT(0);
+                break;
+            default:
+                break;
+            }
+            break;
+        case gcvHAL_UNMAP_USER_MEMORY:
+            *Flush = gcvFLUSH_ALL;
+            return gcvSTATUS_OK;
+
+        default:
+            break;
+        }
+
+        Record = Record->next;
+    }
+
+    *Flush = flush;
+
+    gcmkFOOTER_NO();
+    return gcvSTATUS_OK;
+}
+
+void
+_SubmitTimerFunction(
+    gctPOINTER Data
+    )
+{
+    gckEVENT event = (gckEVENT)Data;
+    gcmkVERIFY_OK(gckEVENT_Submit(event, gcvTRUE, gcvFALSE));
+}
+
+/******************************************************************************\
+******************************* gckEVENT API Code *******************************
+\******************************************************************************/
+
+/*******************************************************************************
+**
+**  gckEVENT_Construct
+**
+**  Construct a new gckEVENT object.
+**
+**  INPUT:
+**
+**      gckKERNEL Kernel
+**          Pointer to an gckKERNEL object.
+**
+**  OUTPUT:
+**
+**      gckEVENT * Event
+**          Pointer to a variable that receives the gckEVENT object pointer.
+*/
+gceSTATUS
+gckEVENT_Construct(
+    IN gckKERNEL Kernel,
+    OUT gckEVENT * Event
+    )
+{
+    gckOS os;
+    gceSTATUS status;
+    gckEVENT eventObj = gcvNULL;
+    int i;
+    gcsEVENT_PTR record;
+    gctPOINTER pointer = gcvNULL;
+
+    gcmkHEADER_ARG("Kernel=0x%x", Kernel);
+
+    /* Verify the arguments. */
+    gcmkVERIFY_OBJECT(Kernel, gcvOBJ_KERNEL);
+    gcmkVERIFY_ARGUMENT(Event != gcvNULL);
+
+    /* Extract the pointer to the gckOS object. */
+    os = Kernel->os;
+    gcmkVERIFY_OBJECT(os, gcvOBJ_OS);
+
+    /* Allocate the gckEVENT object. */
+    gcmkONERROR(gckOS_Allocate(os, gcmSIZEOF(struct _gckEVENT), &pointer));
+
+    eventObj = pointer;
+
+    /* Reset the object. */
+    gcmkVERIFY_OK(gckOS_ZeroMemory(eventObj, gcmSIZEOF(struct _gckEVENT)));
+
+    /* Initialize the gckEVENT object. */
+    eventObj->object.type = gcvOBJ_EVENT;
+    eventObj->kernel      = Kernel;
+    eventObj->os          = os;
+
+    /* Create the mutexes. */
+    gcmkONERROR(gckOS_CreateMutex(os, &eventObj->eventQueueMutex));
+    gcmkONERROR(gckOS_CreateMutex(os, &eventObj->freeEventMutex));
+    gcmkONERROR(gckOS_CreateMutex(os, &eventObj->eventListMutex));
+
+    /* Create a bunch of event reccords. */
+    for (i = 0; i < gcdEVENT_ALLOCATION_COUNT; i += 1)
+    {
+        /* Allocate an event record. */
+        gcmkONERROR(gckOS_Allocate(os, gcmSIZEOF(gcsEVENT), &pointer));
+
+        record = pointer;
+
+        /* Push it on the free list. */
+        record->next              = eventObj->freeEventList;
+        eventObj->freeEventList   = record;
+        eventObj->freeEventCount += 1;
+    }
+
+    /* Initialize the free list of event queues. */
+    for (i = 0; i < gcdREPO_LIST_COUNT; i += 1)
+    {
+        eventObj->repoList[i].next = eventObj->freeList;
+        eventObj->freeList = &eventObj->repoList[i];
+    }
+
+    /* Construct the atom. */
+    gcmkONERROR(gckOS_AtomConstruct(os, &eventObj->freeAtom));
+    gcmkONERROR(gckOS_AtomSet(os,
+                              eventObj->freeAtom,
+                              gcmCOUNTOF(eventObj->queues)));
+
+#if gcdSMP
+    gcmkONERROR(gckOS_AtomConstruct(os, &eventObj->pending));
+
+
+#endif
+
+    gcmkVERIFY_OK(gckOS_CreateTimer(os,
+                                    _SubmitTimerFunction,
+                                    (gctPOINTER)eventObj,
+                                    &eventObj->submitTimer));
+
+#if gcdINTERRUPT_STATISTIC
+    gcmkONERROR(gckOS_AtomConstruct(os, &eventObj->interruptCount));
+    gcmkONERROR(gckOS_AtomSet(os,eventObj->interruptCount, 0));
+#endif
+
+    /* Return pointer to the gckEVENT object. */
+    *Event = eventObj;
+
+    /* Success. */
+    gcmkFOOTER_ARG("*Event=0x%x", *Event);
+    return gcvSTATUS_OK;
+
+OnError:
+    /* Roll back. */
+    if (eventObj != gcvNULL)
+    {
+        if (eventObj->eventQueueMutex != gcvNULL)
+        {
+            gcmkVERIFY_OK(gckOS_DeleteMutex(os, eventObj->eventQueueMutex));
+        }
+
+        if (eventObj->freeEventMutex != gcvNULL)
+        {
+            gcmkVERIFY_OK(gckOS_DeleteMutex(os, eventObj->freeEventMutex));
+        }
+
+        if (eventObj->eventListMutex != gcvNULL)
+        {
+            gcmkVERIFY_OK(gckOS_DeleteMutex(os, eventObj->eventListMutex));
+        }
+
+        while (eventObj->freeEventList != gcvNULL)
+        {
+            record = eventObj->freeEventList;
+            eventObj->freeEventList = record->next;
+
+            gcmkVERIFY_OK(gcmkOS_SAFE_FREE(os, record));
+        }
+
+        if (eventObj->freeAtom != gcvNULL)
+        {
+            gcmkVERIFY_OK(gckOS_AtomDestroy(os, eventObj->freeAtom));
+        }
+
+#if gcdSMP
+        if (eventObj->pending != gcvNULL)
+        {
+            gcmkVERIFY_OK(gckOS_AtomDestroy(os, eventObj->pending));
+        }
+
+#endif
+
+#if gcdINTERRUPT_STATISTIC
+        if (eventObj->interruptCount)
+        {
+            gcmkVERIFY_OK(gckOS_AtomDestroy(os, eventObj->interruptCount));
+        }
+#endif
+        gcmkVERIFY_OK(gcmkOS_SAFE_FREE(os, eventObj));
+    }
+
+    /* Return the status. */
+    gcmkFOOTER();
+    return status;
+}
+
+/*******************************************************************************
+**
+**  gckEVENT_Destroy
+**
+**  Destroy an gckEVENT object.
+**
+**  INPUT:
+**
+**      gckEVENT Event
+**          Pointer to an gckEVENT object.
+**
+**  OUTPUT:
+**
+**      Nothing.
+*/
+gceSTATUS
+gckEVENT_Destroy(
+    IN gckEVENT Event
+    )
+{
+    gcsEVENT_PTR record;
+    gcsEVENT_QUEUE_PTR queue;
+
+    gcmkHEADER_ARG("Event=0x%x", Event);
+
+    /* Verify the arguments. */
+    gcmkVERIFY_OBJECT(Event, gcvOBJ_EVENT);
+
+    if (Event->submitTimer != gcvNULL)
+    {
+        gcmkVERIFY_OK(gckOS_StopTimer(Event->os, Event->submitTimer));
+        gcmkVERIFY_OK(gckOS_DestroyTimer(Event->os, Event->submitTimer));
+    }
+
+    /* Delete the queue mutex. */
+    gcmkVERIFY_OK(gckOS_DeleteMutex(Event->os, Event->eventQueueMutex));
+
+    /* Free all free events. */
+    while (Event->freeEventList != gcvNULL)
+    {
+        record = Event->freeEventList;
+        Event->freeEventList = record->next;
+
+        gcmkVERIFY_OK(gcmkOS_SAFE_FREE(Event->os, record));
+    }
+
+    /* Delete the free mutex. */
+    gcmkVERIFY_OK(gckOS_DeleteMutex(Event->os, Event->freeEventMutex));
+
+    /* Free all pending queues. */
+    while (Event->queueHead != gcvNULL)
+    {
+        /* Get the current queue. */
+        queue = Event->queueHead;
+
+        /* Free all pending events. */
+        while (queue->head != gcvNULL)
+        {
+            record      = queue->head;
+            queue->head = record->next;
+
+            gcmkTRACE_ZONE_N(
+                gcvLEVEL_WARNING, gcvZONE_EVENT,
+                gcmSIZEOF(record) + gcmSIZEOF(queue->source),
+                "Event record 0x%x is still pending for %d.",
+                record, queue->source
+                );
+
+            gcmkVERIFY_OK(gcmkOS_SAFE_FREE(Event->os, record));
+        }
+
+        /* Remove the top queue from the list. */
+        if (Event->queueHead == Event->queueTail)
+        {
+            Event->queueHead =
+            Event->queueTail = gcvNULL;
+        }
+        else
+        {
+            Event->queueHead = Event->queueHead->next;
+        }
+
+        /* Free the queue. */
+        gcmkVERIFY_OK(gckEVENT_FreeQueue(Event, queue));
+    }
+
+    /* Delete the list mutex. */
+    gcmkVERIFY_OK(gckOS_DeleteMutex(Event->os, Event->eventListMutex));
+
+    /* Delete the atom. */
+    gcmkVERIFY_OK(gckOS_AtomDestroy(Event->os, Event->freeAtom));
+
+#if gcdSMP
+    gcmkVERIFY_OK(gckOS_AtomDestroy(Event->os, Event->pending));
+
+#endif
+
+#if gcdINTERRUPT_STATISTIC
+    gcmkVERIFY_OK(gckOS_AtomDestroy(Event->os, Event->interruptCount));
+#endif
+
+    /* Mark the gckEVENT object as unknown. */
+    Event->object.type = gcvOBJ_UNKNOWN;
+
+    /* Free the gckEVENT object. */
+    gcmkVERIFY_OK(gcmkOS_SAFE_FREE(Event->os, Event));
+
+    /* Success. */
+    gcmkFOOTER_NO();
+    return gcvSTATUS_OK;
+}
+
+/*******************************************************************************
+**
+**  gckEVENT_GetEvent
+**
+**  Reserve the next available hardware event.
+**
+**  INPUT:
+**
+**      gckEVENT Event
+**          Pointer to an gckEVENT object.
+**
+**      gctBOOL Wait
+**          Set to gcvTRUE to force the function to wait if no events are
+**          immediately available.
+**
+**      gceKERNEL_WHERE Source
+**          Source of the event.
+**
+**  OUTPUT:
+**
+**      gctUINT8 * EventID
+**          Reserved event ID.
+*/
+#define gcdINVALID_EVENT_PTR    ((gcsEVENT_PTR)gcvMAXUINTPTR_T)
+
+gceSTATUS
+gckEVENT_GetEvent(
+    IN gckEVENT Event,
+    IN gctBOOL Wait,
+    OUT gctUINT8 * EventID,
+    IN gceKERNEL_WHERE Source
+    )
+{
+    gctINT i, id;
+    gceSTATUS status;
+    gctBOOL acquired = gcvFALSE;
+    gctINT32 free;
+
+    gcmkHEADER_ARG("Event=0x%x Source=%d", Event, Source);
+
+    while (gcvTRUE)
+    {
+        /* Grab the queue mutex. */
+        gcmkONERROR(gckOS_AcquireMutex(Event->os,
+                                       Event->eventQueueMutex,
+                                       gcvINFINITE));
+        acquired = gcvTRUE;
+
+        /* Walk through all events. */
+        id = Event->lastID;
+        for (i = 0; i < gcmCOUNTOF(Event->queues); ++i)
+        {
+            gctINT nextID = gckMATH_ModuloInt((id + 1),
+                                              gcmCOUNTOF(Event->queues));
+
+            if (Event->queues[id].head == gcvNULL)
+            {
+                *EventID = (gctUINT8) id;
+
+                Event->lastID = (gctUINT8) nextID;
+
+                /* Save time stamp of event. */
+                Event->queues[id].head   = gcdINVALID_EVENT_PTR;
+                Event->queues[id].stamp  = ++(Event->stamp);
+                Event->queues[id].source = Source;
+
+
+                gcmkONERROR(gckOS_AtomDecrement(Event->os,
+                                                Event->freeAtom,
+                                                &free));
+#if gcdDYNAMIC_SPEED
+                if (free <= gcdDYNAMIC_EVENT_THRESHOLD)
+                {
+                    gcmkONERROR(gckOS_BroadcastHurry(
+                        Event->os,
+                        Event->kernel->hardware,
+                        gcdDYNAMIC_EVENT_THRESHOLD - free));
+                }
+#endif
+
+                /* Release the queue mutex. */
+                gcmkONERROR(gckOS_ReleaseMutex(Event->os,
+                                               Event->eventQueueMutex));
+
+                /* Success. */
+                gcmkTRACE_ZONE_N(
+                    gcvLEVEL_INFO, gcvZONE_EVENT,
+                    gcmSIZEOF(id),
+                    "Using id=%d",
+                    id
+                    );
+
+                gcmkFOOTER_ARG("*EventID=%u", *EventID);
+                return gcvSTATUS_OK;
+            }
+
+            id = nextID;
+        }
+
+#if gcdDYNAMIC_SPEED
+        /* No free events, speed up the GPU right now! */
+        gcmkONERROR(gckOS_BroadcastHurry(Event->os,
+                                         Event->kernel->hardware,
+                                         gcdDYNAMIC_EVENT_THRESHOLD));
+#endif
+
+        /* Release the queue mutex. */
+        gcmkONERROR(gckOS_ReleaseMutex(Event->os, Event->eventQueueMutex));
+        acquired = gcvFALSE;
+
+        /* Fail if wait is not requested. */
+        if (!Wait)
+        {
+            /* Out of resources. */
+            gcmkONERROR(gcvSTATUS_OUT_OF_RESOURCES);
+        }
+
+        /* Delay a while. */
+        gcmkONERROR(gckOS_Delay(Event->os, 1));
+    }
+
+OnError:
+    if (acquired)
+    {
+        /* Release the queue mutex. */
+        gcmkVERIFY_OK(gckOS_ReleaseMutex(Event->os, Event->eventQueueMutex));
+    }
+
+    /* Return the status. */
+    gcmkFOOTER();
+    return status;
+}
+
+/*******************************************************************************
+**
+**  gckEVENT_AllocateRecord
+**
+**  Allocate a record for the new event.
+**
+**  INPUT:
+**
+**      gckEVENT Event
+**          Pointer to an gckEVENT object.
+**
+**      gctBOOL AllocateAllowed
+**          State for allocation if out of free events.
+**
+**  OUTPUT:
+**
+**      gcsEVENT_PTR * Record
+**          Allocated event record.
+*/
+gceSTATUS
+gckEVENT_AllocateRecord(
+    IN gckEVENT Event,
+    IN gctBOOL AllocateAllowed,
+    OUT gcsEVENT_PTR * Record
+    )
+{
+    gceSTATUS status;
+    gctBOOL acquired = gcvFALSE;
+    gctINT i;
+    gcsEVENT_PTR record;
+    gctPOINTER pointer = gcvNULL;
+
+    gcmkHEADER_ARG("Event=0x%x AllocateAllowed=%d", Event, AllocateAllowed);
+
+    /* Verify the arguments. */
+    gcmkVERIFY_OBJECT(Event, gcvOBJ_EVENT);
+    gcmkVERIFY_ARGUMENT(Record != gcvNULL);
+
+    /* Acquire the mutex. */
+    gcmkONERROR(gckOS_AcquireMutex(Event->os, Event->freeEventMutex, gcvINFINITE));
+    acquired = gcvTRUE;
+
+    /* Test if we are below the allocation threshold. */
+    if ( (AllocateAllowed && (Event->freeEventCount < gcdEVENT_MIN_THRESHOLD)) ||
+         (Event->freeEventCount == 0) )
+    {
+        /* Allocate a bunch of records. */
+        for (i = 0; i < gcdEVENT_ALLOCATION_COUNT; i += 1)
+        {
+            /* Allocate an event record. */
+            gcmkONERROR(gckOS_Allocate(Event->os,
+                                       gcmSIZEOF(gcsEVENT),
+                                       &pointer));
+
+            record = pointer;
+
+            /* Push it on the free list. */
+            record->next           = Event->freeEventList;
+            Event->freeEventList   = record;
+            Event->freeEventCount += 1;
+        }
+    }
+
+    *Record                = Event->freeEventList;
+    Event->freeEventList   = Event->freeEventList->next;
+    Event->freeEventCount -= 1;
+
+    /* Release the mutex. */
+    gcmkONERROR(gckOS_ReleaseMutex(Event->os, Event->freeEventMutex));
+
+    /* Success. */
+    gcmkFOOTER_ARG("*Record=0x%x", gcmOPT_POINTER(Record));
+    return gcvSTATUS_OK;
+
+OnError:
+    /* Roll back. */
+    if (acquired)
+    {
+        gcmkVERIFY_OK(gckOS_ReleaseMutex(Event->os, Event->freeEventMutex));
+    }
+
+    /* Return the status. */
+    gcmkFOOTER();
+    return status;
+}
+
+/*******************************************************************************
+**
+**  gckEVENT_AddList
+**
+**  Add a new event to the list of events.
+**
+**  INPUT:
+**
+**      gckEVENT Event
+**          Pointer to an gckEVENT object.
+**
+**      gcsHAL_INTERFACE_PTR Interface
+**          Pointer to the interface for the event to be added.
+**
+**      gceKERNEL_WHERE FromWhere
+**          Place in the pipe where the event needs to be generated.
+**
+**      gctBOOL AllocateAllowed
+**          State for allocation if out of free events.
+**
+**  OUTPUT:
+**
+**      Nothing.
+*/
+gceSTATUS
+gckEVENT_AddList(
+    IN gckEVENT Event,
+    IN gcsHAL_INTERFACE_PTR Interface,
+    IN gceKERNEL_WHERE FromWhere,
+    IN gctBOOL AllocateAllowed,
+    IN gctBOOL FromKernel
+    )
+{
+    gceSTATUS status;
+    gctBOOL acquired = gcvFALSE;
+    gcsEVENT_PTR record = gcvNULL;
+    gcsEVENT_QUEUE_PTR queue;
+    gckVIRTUAL_COMMAND_BUFFER_PTR buffer;
+    gckKERNEL kernel = Event->kernel;
+
+    gcmkHEADER_ARG("Event=0x%x Interface=0x%x",
+                   Event, Interface);
+
+    gcmkTRACE_ZONE(gcvLEVEL_VERBOSE, _GC_OBJ_ZONE,
+                    "FromWhere=%d AllocateAllowed=%d",
+                    FromWhere, AllocateAllowed);
+
+    /* Verify the arguments. */
+    gcmkVERIFY_OBJECT(Event, gcvOBJ_EVENT);
+    gcmkVERIFY_ARGUMENT(Interface != gcvNULL);
+
+    /* Verify the event command. */
+    gcmkASSERT
+        (  (Interface->command == gcvHAL_FREE_NON_PAGED_MEMORY)
+        || (Interface->command == gcvHAL_FREE_CONTIGUOUS_MEMORY)
+        || (Interface->command == gcvHAL_WRITE_DATA)
+        || (Interface->command == gcvHAL_UNLOCK_VIDEO_MEMORY)
+        || (Interface->command == gcvHAL_SIGNAL)
+        || (Interface->command == gcvHAL_UNMAP_USER_MEMORY)
+        || (Interface->command == gcvHAL_TIMESTAMP)
+        || (Interface->command == gcvHAL_COMMIT_DONE)
+        || (Interface->command == gcvHAL_FREE_VIRTUAL_COMMAND_BUFFER)
+        || (Interface->command == gcvHAL_SYNC_POINT)
+        || (Interface->command == gcvHAL_DESTROY_MMU)
+        );
+
+    /* Validate the source. */
+    if ((FromWhere != gcvKERNEL_COMMAND) && (FromWhere != gcvKERNEL_PIXEL))
+    {
+        /* Invalid argument. */
+        gcmkONERROR(gcvSTATUS_INVALID_ARGUMENT);
+    }
+
+    /* Allocate a free record. */
+    gcmkONERROR(gckEVENT_AllocateRecord(Event, AllocateAllowed, &record));
+
+    /* Termninate the record. */
+    record->next = gcvNULL;
+
+    /* Record the committer. */
+    record->fromKernel = FromKernel;
+
+    /* Copy the event interface into the record. */
+    gckOS_MemCopy(&record->info, Interface, gcmSIZEOF(record->info));
+
+    /* Get process ID. */
+    gcmkONERROR(gckOS_GetProcessID(&record->processID));
+
+    gcmkONERROR(__RemoveRecordFromProcessDB(Event, record));
+
+    /* Handle is belonged to current process, it must be released now. */
+    if (FromKernel == gcvFALSE)
+    {
+        status = _ReleaseVideoMemoryHandle(Event->kernel, record, Interface);
+
+        if (gcmIS_ERROR(status))
+        {
+            /* Ingore error because there are other events in the queue. */
+            status = gcvSTATUS_OK;
+            goto OnError;
+        }
+    }
+
+#ifdef __QNXNTO__
+    record->kernel = Event->kernel;
+#endif
+
+    /* Acquire the mutex. */
+    gcmkONERROR(gckOS_AcquireMutex(Event->os, Event->eventListMutex, gcvINFINITE));
+    acquired = gcvTRUE;
+
+    /* Do we need to allocate a new queue? */
+    if ((Event->queueTail == gcvNULL) || (Event->queueTail->source < FromWhere))
+    {
+        /* Allocate a new queue. */
+        gcmkONERROR(gckEVENT_AllocateQueue(Event, &queue));
+
+        /* Initialize the queue. */
+        queue->source = FromWhere;
+        queue->head   = gcvNULL;
+        queue->next   = gcvNULL;
+
+        /* Attach it to the list of allocated queues. */
+        if (Event->queueTail == gcvNULL)
+        {
+            Event->queueHead =
+            Event->queueTail = queue;
+        }
+        else
+        {
+            Event->queueTail->next = queue;
+            Event->queueTail       = queue;
+        }
+    }
+    else
+    {
+        queue = Event->queueTail;
+    }
+
+    /* Attach the record to the queue. */
+    if (queue->head == gcvNULL)
+    {
+        queue->head = record;
+        queue->tail = record;
+    }
+    else
+    {
+        queue->tail->next = record;
+        queue->tail       = record;
+    }
+
+    /* Unmap user space logical address.
+     * Linux kernel does not support unmap the memory of other process any more since 3.5.
+     * Let's unmap memory of self process before submit the event to gpu.
+     * */
+    switch(Interface->command)
+    {
+    case gcvHAL_FREE_NON_PAGED_MEMORY:
+        gcmkONERROR(gckOS_UnmapUserLogical(
+                        Event->os,
+                        gcmNAME_TO_PTR(Interface->u.FreeNonPagedMemory.physical),
+                        (gctSIZE_T) Interface->u.FreeNonPagedMemory.bytes,
+                        gcmUINT64_TO_PTR(Interface->u.FreeNonPagedMemory.logical)));
+        break;
+    case gcvHAL_FREE_CONTIGUOUS_MEMORY:
+        gcmkONERROR(gckOS_UnmapUserLogical(
+                        Event->os,
+                        gcmNAME_TO_PTR(Interface->u.FreeContiguousMemory.physical),
+                        (gctSIZE_T) Interface->u.FreeContiguousMemory.bytes,
+                        gcmUINT64_TO_PTR(Interface->u.FreeContiguousMemory.logical)));
+        break;
+
+    case gcvHAL_FREE_VIRTUAL_COMMAND_BUFFER:
+        buffer = (gckVIRTUAL_COMMAND_BUFFER_PTR)gcmNAME_TO_PTR(Interface->u.FreeVirtualCommandBuffer.physical);
+        if (buffer->userLogical)
+        {
+            gcmkONERROR(gckOS_DestroyUserVirtualMapping(
+                            Event->os,
+                            buffer->physical,
+                            (gctSIZE_T) Interface->u.FreeVirtualCommandBuffer.bytes,
+                            gcmUINT64_TO_PTR(Interface->u.FreeVirtualCommandBuffer.logical)));
+        }
+        break;
+
+    default:
+        break;
+    }
+
+    /* Release the mutex. */
+    gcmkONERROR(gckOS_ReleaseMutex(Event->os, Event->eventListMutex));
+
+    /* Success. */
+    gcmkFOOTER_NO();
+    return gcvSTATUS_OK;
+
+OnError:
+    /* Roll back. */
+    if (acquired)
+    {
+        gcmkVERIFY_OK(gckOS_ReleaseMutex(Event->os, Event->eventListMutex));
+    }
+
+    if (record != gcvNULL)
+    {
+        gcmkVERIFY_OK(gckEVENT_FreeRecord(Event, record));
+    }
+
+    /* Return the status. */
+    gcmkFOOTER();
+    return status;
+}
+
+/*******************************************************************************
+**
+**  gckEVENT_Unlock
+**
+**  Schedule an event to unlock virtual memory.
+**
+**  INPUT:
+**
+**      gckEVENT Event
+**          Pointer to an gckEVENT object.
+**
+**      gceKERNEL_WHERE FromWhere
+**          Place in the pipe where the event needs to be generated.
+**
+**      gcuVIDMEM_NODE_PTR Node
+**          Pointer to a gcuVIDMEM_NODE union that specifies the virtual memory
+**          to unlock.
+**
+**      gceSURF_TYPE Type
+**          Type of surface to unlock.
+**
+**  OUTPUT:
+**
+**      Nothing.
+*/
+gceSTATUS
+gckEVENT_Unlock(
+    IN gckEVENT Event,
+    IN gceKERNEL_WHERE FromWhere,
+    IN gctPOINTER Node,
+    IN gceSURF_TYPE Type
+    )
+{
+    gceSTATUS status;
+    gcsHAL_INTERFACE iface;
+
+    gcmkHEADER_ARG("Event=0x%x FromWhere=%d Node=0x%x Type=%d",
+                   Event, FromWhere, Node, Type);
+
+    /* Verify the arguments. */
+    gcmkVERIFY_OBJECT(Event, gcvOBJ_EVENT);
+    gcmkVERIFY_ARGUMENT(Node != gcvNULL);
+
+    /* Mark the event as an unlock. */
+    iface.command                           = gcvHAL_UNLOCK_VIDEO_MEMORY;
+    iface.u.UnlockVideoMemory.node          = gcmPTR_TO_UINT64(Node);
+    iface.u.UnlockVideoMemory.type          = Type;
+    iface.u.UnlockVideoMemory.asynchroneous = 0;
+
+    /* Append it to the queue. */
+    gcmkONERROR(gckEVENT_AddList(Event, &iface, FromWhere, gcvFALSE, gcvTRUE));
+
+    /* Success. */
+    gcmkFOOTER_NO();
+    return gcvSTATUS_OK;
+
+OnError:
+    /* Return the status. */
+    gcmkFOOTER();
+    return status;
+}
+
+/*******************************************************************************
+**
+**  gckEVENT_FreeNonPagedMemory
+**
+**  Schedule an event to free non-paged memory.
+**
+**  INPUT:
+**
+**      gckEVENT Event
+**          Pointer to an gckEVENT object.
+**
+**      gctSIZE_T Bytes
+**          Number of bytes of non-paged memory to free.
+**
+**      gctPHYS_ADDR Physical
+**          Physical address of non-paged memory to free.
+**
+**      gctPOINTER Logical
+**          Logical address of non-paged memory to free.
+**
+**      gceKERNEL_WHERE FromWhere
+**          Place in the pipe where the event needs to be generated.
+*/
+gceSTATUS
+gckEVENT_FreeNonPagedMemory(
+    IN gckEVENT Event,
+    IN gctSIZE_T Bytes,
+    IN gctPHYS_ADDR Physical,
+    IN gctPOINTER Logical,
+    IN gceKERNEL_WHERE FromWhere
+    )
+{
+    gceSTATUS status;
+    gcsHAL_INTERFACE iface;
+    gckKERNEL kernel = Event->kernel;
+
+    gcmkHEADER_ARG("Event=0x%x Bytes=%lu Physical=0x%x Logical=0x%x "
+                   "FromWhere=%d",
+                   Event, Bytes, Physical, Logical, FromWhere);
+
+    /* Verify the arguments. */
+    gcmkVERIFY_OBJECT(Event, gcvOBJ_EVENT);
+    gcmkVERIFY_ARGUMENT(Physical != gcvNULL);
+    gcmkVERIFY_ARGUMENT(Logical != gcvNULL);
+    gcmkVERIFY_ARGUMENT(Bytes > 0);
+
+    /* Create an event. */
+    iface.command = gcvHAL_FREE_NON_PAGED_MEMORY;
+    iface.u.FreeNonPagedMemory.bytes    = Bytes;
+    iface.u.FreeNonPagedMemory.physical = gcmPTR_TO_NAME(Physical);
+    iface.u.FreeNonPagedMemory.logical  = gcmPTR_TO_UINT64(Logical);
+
+    /* Append it to the queue. */
+    gcmkONERROR(gckEVENT_AddList(Event, &iface, FromWhere, gcvFALSE, gcvTRUE));
+
+    /* Success. */
+    gcmkFOOTER_NO();
+    return gcvSTATUS_OK;
+
+OnError:
+    /* Return the status. */
+    gcmkFOOTER();
+    return status;
+}
+
+gceSTATUS
+gckEVENT_DestroyVirtualCommandBuffer(
+    IN gckEVENT Event,
+    IN gctSIZE_T Bytes,
+    IN gctPHYS_ADDR Physical,
+    IN gctPOINTER Logical,
+    IN gceKERNEL_WHERE FromWhere
+    )
+{
+    gceSTATUS status;
+    gcsHAL_INTERFACE iface;
+    gckKERNEL kernel = Event->kernel;
+
+    gcmkHEADER_ARG("Event=0x%x Bytes=%lu Physical=0x%x Logical=0x%x "
+                   "FromWhere=%d",
+                   Event, Bytes, Physical, Logical, FromWhere);
+
+    /* Verify the arguments. */
+    gcmkVERIFY_OBJECT(Event, gcvOBJ_EVENT);
+    gcmkVERIFY_ARGUMENT(Physical != gcvNULL);
+    gcmkVERIFY_ARGUMENT(Logical != gcvNULL);
+    gcmkVERIFY_ARGUMENT(Bytes > 0);
+
+    /* Create an event. */
+    iface.command = gcvHAL_FREE_VIRTUAL_COMMAND_BUFFER;
+    iface.u.FreeVirtualCommandBuffer.bytes    = Bytes;
+    iface.u.FreeVirtualCommandBuffer.physical = gcmPTR_TO_NAME(Physical);
+    iface.u.FreeVirtualCommandBuffer.logical  = gcmPTR_TO_UINT64(Logical);
+
+    /* Append it to the queue. */
+    gcmkONERROR(gckEVENT_AddList(Event, &iface, FromWhere, gcvFALSE, gcvTRUE));
+
+    /* Success. */
+    gcmkFOOTER_NO();
+    return gcvSTATUS_OK;
+
+OnError:
+    /* Return the status. */
+    gcmkFOOTER();
+    return status;
+}
+
+/*******************************************************************************
+**
+**  gckEVENT_FreeContigiuousMemory
+**
+**  Schedule an event to free contiguous memory.
+**
+**  INPUT:
+**
+**      gckEVENT Event
+**          Pointer to an gckEVENT object.
+**
+**      gctSIZE_T Bytes
+**          Number of bytes of contiguous memory to free.
+**
+**      gctPHYS_ADDR Physical
+**          Physical address of contiguous memory to free.
+**
+**      gctPOINTER Logical
+**          Logical address of contiguous memory to free.
+**
+**      gceKERNEL_WHERE FromWhere
+**          Place in the pipe where the event needs to be generated.
+*/
+gceSTATUS
+gckEVENT_FreeContiguousMemory(
+    IN gckEVENT Event,
+    IN gctSIZE_T Bytes,
+    IN gctPHYS_ADDR Physical,
+    IN gctPOINTER Logical,
+    IN gceKERNEL_WHERE FromWhere
+    )
+{
+    gceSTATUS status;
+    gcsHAL_INTERFACE iface;
+    gckKERNEL kernel = Event->kernel;
+
+    gcmkHEADER_ARG("Event=0x%x Bytes=%lu Physical=0x%x Logical=0x%x "
+                   "FromWhere=%d",
+                   Event, Bytes, Physical, Logical, FromWhere);
+
+    /* Verify the arguments. */
+    gcmkVERIFY_OBJECT(Event, gcvOBJ_EVENT);
+    gcmkVERIFY_ARGUMENT(Physical != gcvNULL);
+    gcmkVERIFY_ARGUMENT(Logical != gcvNULL);
+    gcmkVERIFY_ARGUMENT(Bytes > 0);
+
+    /* Create an event. */
+    iface.command = gcvHAL_FREE_CONTIGUOUS_MEMORY;
+    iface.u.FreeContiguousMemory.bytes    = Bytes;
+    iface.u.FreeContiguousMemory.physical = gcmPTR_TO_NAME(Physical);
+    iface.u.FreeContiguousMemory.logical  = gcmPTR_TO_UINT64(Logical);
+
+    /* Append it to the queue. */
+    gcmkONERROR(gckEVENT_AddList(Event, &iface, FromWhere, gcvFALSE, gcvTRUE));
+
+    /* Success. */
+    gcmkFOOTER_NO();
+    return gcvSTATUS_OK;
+
+OnError:
+    /* Return the status. */
+    gcmkFOOTER();
+    return status;
+}
+
+/*******************************************************************************
+**
+**  gckEVENT_Signal
+**
+**  Schedule an event to trigger a signal.
+**
+**  INPUT:
+**
+**      gckEVENT Event
+**          Pointer to an gckEVENT object.
+**
+**      gctSIGNAL Signal
+**          Pointer to the signal to trigger.
+**
+**      gceKERNEL_WHERE FromWhere
+**          Place in the pipe where the event needs to be generated.
+**
+**  OUTPUT:
+**
+**      Nothing.
+*/
+gceSTATUS
+gckEVENT_Signal(
+    IN gckEVENT Event,
+    IN gctSIGNAL Signal,
+    IN gceKERNEL_WHERE FromWhere
+    )
+{
+    gceSTATUS status;
+    gcsHAL_INTERFACE iface;
+
+    gcmkHEADER_ARG("Event=0x%x Signal=0x%x FromWhere=%d",
+                   Event, Signal, FromWhere);
+
+    /* Verify the arguments. */
+    gcmkVERIFY_OBJECT(Event, gcvOBJ_EVENT);
+    gcmkVERIFY_ARGUMENT(Signal != gcvNULL);
+
+    /* Mark the event as a signal. */
+    iface.command            = gcvHAL_SIGNAL;
+    iface.u.Signal.signal    = gcmPTR_TO_UINT64(Signal);
+    iface.u.Signal.auxSignal = 0;
+    iface.u.Signal.process   = 0;
+
+#ifdef __QNXNTO__
+    iface.u.Signal.coid      = 0;
+    iface.u.Signal.rcvid     = 0;
+
+    gcmkONERROR(gckOS_SignalPending(Event->os, Signal));
+#endif
+
+    /* Append it to the queue. */
+    gcmkONERROR(gckEVENT_AddList(Event, &iface, FromWhere, gcvFALSE, gcvTRUE));
+
+    /* Success. */
+    gcmkFOOTER_NO();
+    return gcvSTATUS_OK;
+
+OnError:
+    /* Return the status. */
+    gcmkFOOTER();
+    return status;
+}
+
+/*******************************************************************************
+**
+**  gckEVENT_CommitDone
+**
+**  Schedule an event to wake up work thread when commit is done by GPU.
+**
+**  INPUT:
+**
+**      gckEVENT Event
+**          Pointer to an gckEVENT object.
+**
+**      gceKERNEL_WHERE FromWhere
+**          Place in the pipe where the event needs to be generated.
+**
+**  OUTPUT:
+**
+**      Nothing.
+*/
+gceSTATUS
+gckEVENT_CommitDone(
+    IN gckEVENT Event,
+    IN gceKERNEL_WHERE FromWhere
+    )
+{
+    gceSTATUS status;
+    gcsHAL_INTERFACE iface;
+
+    gcmkHEADER_ARG("Event=0x%x FromWhere=%d", Event, FromWhere);
+
+    /* Verify the arguments. */
+    gcmkVERIFY_OBJECT(Event, gcvOBJ_EVENT);
+
+    iface.command = gcvHAL_COMMIT_DONE;
+
+    /* Append it to the queue. */
+    gcmkONERROR(gckEVENT_AddList(Event, &iface, FromWhere, gcvFALSE, gcvTRUE));
+
+    /* Success. */
+    gcmkFOOTER_NO();
+    return gcvSTATUS_OK;
+
+OnError:
+    /* Return the status. */
+    gcmkFOOTER();
+    return status;
+}
+
+#if gcdPROCESS_ADDRESS_SPACE
+gceSTATUS
+gckEVENT_DestroyMmu(
+    IN gckEVENT Event,
+    IN gckMMU Mmu,
+    IN gceKERNEL_WHERE FromWhere
+    )
+{
+    gceSTATUS status;
+    gcsHAL_INTERFACE iface;
+
+    gcmkHEADER_ARG("Event=0x%x FromWhere=%d", Event, FromWhere);
+
+    /* Verify the arguments. */
+    gcmkVERIFY_OBJECT(Event, gcvOBJ_EVENT);
+
+    iface.command = gcvHAL_DESTROY_MMU;
+    iface.u.DestroyMmu.mmu = gcmPTR_TO_UINT64(Mmu);
+
+    /* Append it to the queue. */
+    gcmkONERROR(gckEVENT_AddList(Event, &iface, FromWhere, gcvFALSE, gcvTRUE));
+
+    /* Success. */
+    gcmkFOOTER_NO();
+    return gcvSTATUS_OK;
+
+OnError:
+    /* Return the status. */
+    gcmkFOOTER();
+    return status;
+}
+#endif
+
+/*******************************************************************************
+**
+**  gckEVENT_Submit
+**
+**  Submit the current event queue to the GPU.
+**
+**  INPUT:
+**
+**      gckEVENT Event
+**          Pointer to an gckEVENT object.
+**
+**      gctBOOL Wait
+**          Submit requires one vacant event; if Wait is set to not zero,
+**          and there are no vacant events at this time, the function will
+**          wait until an event becomes vacant so that submission of the
+**          queue is successful.
+**
+**      gctBOOL FromPower
+**          Determines whether the call originates from inside the power
+**          management or not.
+**
+**  OUTPUT:
+**
+**      Nothing.
+*/
+gceSTATUS
+gckEVENT_Submit(
+    IN gckEVENT Event,
+    IN gctBOOL Wait,
+    IN gctBOOL FromPower
+    )
+{
+    gceSTATUS status;
+    gctUINT8 id = 0xFF;
+    gcsEVENT_QUEUE_PTR queue;
+    gctBOOL acquired = gcvFALSE;
+    gckCOMMAND command = gcvNULL;
+    gctBOOL commitEntered = gcvFALSE;
+#if !gcdNULL_DRIVER
+    gctUINT32 bytes;
+    gctPOINTER buffer;
+#endif
+
+
+#if gcdINTERRUPT_STATISTIC
+    gctINT32 oldValue;
+#endif
+
+
+    gctUINT32 flushBytes;
+    gctUINT32 executeBytes;
+    gckHARDWARE hardware;
+
+    gceKERNEL_FLUSH flush = gcvFALSE;
+    gctUINT64 commitStamp;
+
+    gcmkHEADER_ARG("Event=0x%x Wait=%d", Event, Wait);
+
+    /* Get gckCOMMAND object. */
+    command = Event->kernel->command;
+    hardware = Event->kernel->hardware;
+
+    gcmkVERIFY_OBJECT(hardware, gcvOBJ_HARDWARE);
+
+    gckOS_GetTicks(&Event->lastCommitStamp);
+
+    /* Are there event queues? */
+    if (Event->queueHead != gcvNULL)
+    {
+        /* Acquire the command queue. */
+        gcmkONERROR(gckCOMMAND_EnterCommit(command, FromPower));
+        commitEntered = gcvTRUE;
+
+        /* Get current commit stamp. */
+        commitStamp = Event->kernel->command->commitStamp;
+
+        if (commitStamp)
+        {
+            commitStamp -= 1;
+        }
+
+        /* Process all queues. */
+        while (Event->queueHead != gcvNULL)
+        {
+            /* Acquire the list mutex. */
+            gcmkONERROR(gckOS_AcquireMutex(Event->os,
+                                           Event->eventListMutex,
+                                           gcvINFINITE));
+            acquired = gcvTRUE;
+
+            /* Get the current queue. */
+            queue = Event->queueHead;
+
+            /* Allocate an event ID. */
+            gcmkONERROR(gckEVENT_GetEvent(Event, Wait, &id, queue->source));
+
+            /* Copy event list to event ID queue. */
+            Event->queues[id].head   = queue->head;
+
+            /* Update current commit stamp. */
+            Event->queues[id].commitStamp = commitStamp;
+
+            /* Remove the top queue from the list. */
+            if (Event->queueHead == Event->queueTail)
+            {
+                Event->queueHead = gcvNULL;
+                Event->queueTail = gcvNULL;
+            }
+            else
+            {
+                Event->queueHead = Event->queueHead->next;
+            }
+
+            /* Free the queue. */
+            gcmkONERROR(gckEVENT_FreeQueue(Event, queue));
+
+            /* Release the list mutex. */
+            gcmkONERROR(gckOS_ReleaseMutex(Event->os, Event->eventListMutex));
+            acquired = gcvFALSE;
+
+            /* Determine cache needed to flush. */
+            gcmkVERIFY_OK(_QueryFlush(Event, Event->queues[id].head, &flush));
+
+#if gcdINTERRUPT_STATISTIC
+            gcmkVERIFY_OK(gckOS_AtomIncrement(
+                Event->os,
+                Event->interruptCount,
+                &oldValue
+                ));
+#endif
+
+#if gcdNULL_DRIVER
+            /* Notify immediately on infinite hardware. */
+            gcmkONERROR(gckEVENT_Interrupt(Event, 1 << id));
+
+            gcmkONERROR(gckEVENT_Notify(Event, 0));
+#else
+            /* Get the size of the hardware event. */
+            gcmkONERROR(gckHARDWARE_Event(
+                hardware,
+                gcvNULL,
+                id,
+                Event->queues[id].source,
+                &bytes
+                ));
+
+            /* Get the size of flush command. */
+            gcmkONERROR(gckHARDWARE_Flush(
+                hardware,
+                flush,
+                gcvNULL,
+                &flushBytes
+                ));
+
+            bytes += flushBytes;
+
+
+            /* Total bytes need to execute. */
+            executeBytes = bytes;
+
+            /* Reserve space in the command queue. */
+            gcmkONERROR(gckCOMMAND_Reserve(command, bytes, &buffer, &bytes));
+
+
+            /* Set the flush in the command queue. */
+            gcmkONERROR(gckHARDWARE_Flush(
+                hardware,
+                flush,
+                buffer,
+                &flushBytes
+                ));
+
+            /* Advance to next command. */
+            buffer = (gctUINT8_PTR)buffer + flushBytes;
+
+            /* Set the hardware event in the command queue. */
+            gcmkONERROR(gckHARDWARE_Event(
+                hardware,
+                buffer,
+                id,
+                Event->queues[id].source,
+                &bytes
+                ));
+
+            /* Advance to next command. */
+            buffer = (gctUINT8_PTR)buffer + bytes;
+
+
+            /* Execute the hardware event. */
+            gcmkONERROR(gckCOMMAND_Execute(command, executeBytes));
+#endif
+        }
+
+        /* Release the command queue. */
+        gcmkONERROR(gckCOMMAND_ExitCommit(command, FromPower));
+
+#if !gcdNULL_DRIVER
+        gcmkVERIFY_OK(_TryToIdleGPU(Event));
+#endif
+    }
+
+    /* Success. */
+    gcmkFOOTER_NO();
+    return gcvSTATUS_OK;
+
+OnError:
+    if (acquired)
+    {
+        /* Need to unroll the mutex acquire. */
+        gcmkVERIFY_OK(gckOS_ReleaseMutex(Event->os, Event->eventListMutex));
+    }
+
+    if (commitEntered)
+    {
+        /* Release the command queue mutex. */
+        gcmkVERIFY_OK(gckCOMMAND_ExitCommit(command, FromPower));
+    }
+
+    if (id != 0xFF)
+    {
+        /* Need to unroll the event allocation. */
+        Event->queues[id].head = gcvNULL;
+    }
+
+    if (status == gcvSTATUS_GPU_NOT_RESPONDING)
+    {
+        /* Broadcast GPU stuck. */
+        status = gckOS_Broadcast(Event->os,
+                                 Event->kernel->hardware,
+                                 gcvBROADCAST_GPU_STUCK);
+    }
+
+    /* Return the status. */
+    gcmkFOOTER();
+    return status;
+}
+
+/*******************************************************************************
+**
+**  gckEVENT_Commit
+**
+**  Commit an event queue from the user.
+**
+**  INPUT:
+**
+**      gckEVENT Event
+**          Pointer to an gckEVENT object.
+**
+**      gcsQUEUE_PTR Queue
+**          User event queue.
+**
+**  OUTPUT:
+**
+**      Nothing.
+*/
+gceSTATUS
+gckEVENT_Commit(
+    IN gckEVENT Event,
+    IN gcsQUEUE_PTR Queue
+    )
+{
+    gceSTATUS status;
+    gcsQUEUE_PTR record = gcvNULL, next;
+    gctUINT32 processID;
+    gctBOOL needCopy = gcvFALSE;
+
+    gcmkHEADER_ARG("Event=0x%x Queue=0x%x", Event, Queue);
+
+    /* Verify the arguments. */
+    gcmkVERIFY_OBJECT(Event, gcvOBJ_EVENT);
+
+    /* Get the current process ID. */
+    gcmkONERROR(gckOS_GetProcessID(&processID));
+
+    /* Query if we need to copy the client data. */
+    gcmkONERROR(gckOS_QueryNeedCopy(Event->os, processID, &needCopy));
+
+    /* Loop while there are records in the queue. */
+    while (Queue != gcvNULL)
+    {
+        gcsQUEUE queue;
+
+        if (needCopy)
+        {
+            /* Point to stack record. */
+            record = &queue;
+
+            /* Copy the data from the client. */
+            gcmkONERROR(gckOS_CopyFromUserData(Event->os,
+                                               record,
+                                               Queue,
+                                               gcmSIZEOF(gcsQUEUE)));
+        }
+        else
+        {
+            gctPOINTER pointer = gcvNULL;
+
+            /* Map record into kernel memory. */
+            gcmkONERROR(gckOS_MapUserPointer(Event->os,
+                                             Queue,
+                                             gcmSIZEOF(gcsQUEUE),
+                                             &pointer));
+
+            record = pointer;
+        }
+
+        /* Append event record to event queue. */
+        gcmkONERROR(
+            gckEVENT_AddList(Event, &record->iface, gcvKERNEL_PIXEL, gcvTRUE, gcvFALSE));
+
+        /* Next record in the queue. */
+        next = gcmUINT64_TO_PTR(record->next);
+
+        if (!needCopy)
+        {
+            /* Unmap record from kernel memory. */
+            gcmkONERROR(
+                gckOS_UnmapUserPointer(Event->os,
+                                       Queue,
+                                       gcmSIZEOF(gcsQUEUE),
+                                       (gctPOINTER *) record));
+            record = gcvNULL;
+        }
+
+        Queue = next;
+    }
+
+    /* Submit the event list. */
+    gcmkONERROR(gckEVENT_Submit(Event, gcvTRUE, gcvFALSE));
+
+    /* Success */
+    gcmkFOOTER_NO();
+    return gcvSTATUS_OK;
+
+OnError:
+    if ((record != gcvNULL) && !needCopy)
+    {
+        /* Roll back. */
+        gcmkVERIFY_OK(gckOS_UnmapUserPointer(Event->os,
+                                             Queue,
+                                             gcmSIZEOF(gcsQUEUE),
+                                             (gctPOINTER *) record));
+    }
+
+    /* Return the status. */
+    gcmkFOOTER();
+    return status;
+}
+
+/*******************************************************************************
+**
+**  gckEVENT_Compose
+**
+**  Schedule a composition event and start a composition.
+**
+**  INPUT:
+**
+**      gckEVENT Event
+**          Pointer to an gckEVENT object.
+**
+**      gcsHAL_COMPOSE_PTR Info
+**          Pointer to the composition structure.
+**
+**  OUTPUT:
+**
+**      Nothing.
+*/
+gceSTATUS
+gckEVENT_Compose(
+    IN gckEVENT Event,
+    IN gcsHAL_COMPOSE_PTR Info
+    )
+{
+    gceSTATUS status;
+    gcsEVENT_PTR headRecord;
+    gcsEVENT_PTR tailRecord;
+    gcsEVENT_PTR tempRecord;
+    gctUINT8 id = 0xFF;
+    gctUINT32 processID;
+
+    gcmkHEADER_ARG("Event=0x%x Info=0x%x", Event, Info);
+
+    /* Verify the arguments. */
+    gcmkVERIFY_OBJECT(Event, gcvOBJ_EVENT);
+    gcmkVERIFY_ARGUMENT(Info != gcvNULL);
+
+    /* Allocate an event ID. */
+    gcmkONERROR(gckEVENT_GetEvent(Event, gcvTRUE, &id, gcvKERNEL_PIXEL));
+
+    /* Get process ID. */
+    gcmkONERROR(gckOS_GetProcessID(&processID));
+
+    /* Allocate a record. */
+    gcmkONERROR(gckEVENT_AllocateRecord(Event, gcvTRUE, &tempRecord));
+    headRecord = tailRecord = tempRecord;
+
+    /* Initialize the record. */
+    tempRecord->info.command            = gcvHAL_SIGNAL;
+    tempRecord->info.u.Signal.process   = Info->process;
+#ifdef __QNXNTO__
+    tempRecord->info.u.Signal.coid      = Info->coid;
+    tempRecord->info.u.Signal.rcvid     = Info->rcvid;
+#endif
+    tempRecord->info.u.Signal.signal    = Info->signal;
+    tempRecord->info.u.Signal.auxSignal = 0;
+    tempRecord->next = gcvNULL;
+    tempRecord->processID = processID;
+
+    /* Allocate another record for user signal #1. */
+    if (gcmUINT64_TO_PTR(Info->userSignal1) != gcvNULL)
+    {
+        /* Allocate a record. */
+        gcmkONERROR(gckEVENT_AllocateRecord(Event, gcvTRUE, &tempRecord));
+        tailRecord->next = tempRecord;
+        tailRecord = tempRecord;
+
+        /* Initialize the record. */
+        tempRecord->info.command            = gcvHAL_SIGNAL;
+        tempRecord->info.u.Signal.process   = Info->userProcess;
+#ifdef __QNXNTO__
+        tempRecord->info.u.Signal.coid      = Info->coid;
+        tempRecord->info.u.Signal.rcvid     = Info->rcvid;
+#endif
+        tempRecord->info.u.Signal.signal    = Info->userSignal1;
+        tempRecord->info.u.Signal.auxSignal = 0;
+        tempRecord->next = gcvNULL;
+        tempRecord->processID = processID;
+    }
+
+    /* Allocate another record for user signal #2. */
+    if (gcmUINT64_TO_PTR(Info->userSignal2) != gcvNULL)
+    {
+        /* Allocate a record. */
+        gcmkONERROR(gckEVENT_AllocateRecord(Event, gcvTRUE, &tempRecord));
+        tailRecord->next = tempRecord;
+
+        /* Initialize the record. */
+        tempRecord->info.command            = gcvHAL_SIGNAL;
+        tempRecord->info.u.Signal.process   = Info->userProcess;
+#ifdef __QNXNTO__
+        tempRecord->info.u.Signal.coid      = Info->coid;
+        tempRecord->info.u.Signal.rcvid     = Info->rcvid;
+#endif
+        tempRecord->info.u.Signal.signal    = Info->userSignal2;
+        tempRecord->info.u.Signal.auxSignal = 0;
+        tempRecord->next = gcvNULL;
+        tempRecord->processID = processID;
+    }
+
+    /* Set the event list. */
+    Event->queues[id].head = headRecord;
+
+    /* Start composition. */
+    gcmkONERROR(gckHARDWARE_Compose(
+        Event->kernel->hardware, processID,
+        gcmUINT64_TO_PTR(Info->physical), gcmUINT64_TO_PTR(Info->logical), Info->offset, Info->size, id
+        ));
+
+    /* Success. */
+    gcmkFOOTER_NO();
+    return gcvSTATUS_OK;
+
+OnError:
+    /* Return the status. */
+    gcmkFOOTER();
+    return status;
+}
+
+/*******************************************************************************
+**
+**  gckEVENT_Interrupt
+**
+**  Called by the interrupt service routine to store the triggered interrupt
+**  mask to be later processed by gckEVENT_Notify.
+**
+**  INPUT:
+**
+**      gckEVENT Event
+**          Pointer to an gckEVENT object.
+**
+**      gctUINT32 Data
+**          Mask for the 32 interrupts.
+**
+**  OUTPUT:
+**
+**      Nothing.
+*/
+gceSTATUS
+gckEVENT_Interrupt(
+    IN gckEVENT Event,
+    IN gctUINT32 Data
+    )
+{
+    gcmkHEADER_ARG("Event=0x%x Data=0x%x", Event, Data);
+
+    /* Verify the arguments. */
+    gcmkVERIFY_OBJECT(Event, gcvOBJ_EVENT);
+
+    if (Data & 0x20000000)
+    {
+        gckENTRYDATA data;
+        gctUINT32 idle;
+        Data &= ~0x20000000;
+
+        {
+            /* Get first entry information. */
+            gcmkVERIFY_OK(
+                gckENTRYQUEUE_Dequeue(&Event->kernel->command->queue, &data));
+
+            /* Make sure FE is idle. */
+            do
+            {
+                gcmkVERIFY_OK(gckOS_ReadRegisterEx(
+                    Event->os,
+                    Event->kernel->core,
+                    0x4,
+                    &idle));
+            }
+            while (idle != 0x7FFFFFFF);
+
+
+            /* Start Command Parser. */
+            gcmkVERIFY_OK(gckHARDWARE_Execute(
+                Event->kernel->hardware,
+                data->physical,
+                data->bytes
+                ));
+        }
+    }
+
+    /* Combine current interrupt status with pending flags. */
+#if gcdSMP
+    {
+        gckOS_AtomSetMask(Event->pending, Data);
+    }
+#elif defined(__QNXNTO__)
+    {
+        atomic_set(&Event->pending, Data);
+    }
+#else
+    {
+        Event->pending |= Data;
+    }
+#endif
+
+#if gcdINTERRUPT_STATISTIC
+    {
+        gctINT j = 0;
+        gctINT32 oldValue;
+
+        for (j = 0; j < gcmCOUNTOF(Event->queues); j++)
+        {
+            if ((Data & (1 << j)))
+            {
+                gcmkVERIFY_OK(gckOS_AtomDecrement(Event->os,
+                                                  Event->interruptCount,
+                                                  &oldValue));
+            }
+        }
+    }
+#endif
+
+    /* Success. */
+    gcmkFOOTER_NO();
+    return gcvSTATUS_OK;
+}
+
+/*******************************************************************************
+**
+**  gckEVENT_Notify
+**
+**  Process all triggered interrupts.
+**
+**  INPUT:
+**
+**      gckEVENT Event
+**          Pointer to an gckEVENT object.
+**
+**  OUTPUT:
+**
+**      Nothing.
+*/
+gceSTATUS
+gckEVENT_Notify(
+    IN gckEVENT Event,
+    IN gctUINT32 IDs
+    )
+{
+    gceSTATUS status = gcvSTATUS_OK;
+    gctINT i;
+    gcsEVENT_QUEUE * queue;
+    gctUINT mask = 0;
+    gctBOOL acquired = gcvFALSE;
+    gctPOINTER info;
+    gctSIGNAL signal;
+    gctUINT pending = 0;
+    gckKERNEL kernel = Event->kernel;
+#if !gcdSMP
+    gctBOOL suspended = gcvFALSE;
+#endif
+#if gcmIS_DEBUG(gcdDEBUG_TRACE)
+    gctINT eventNumber = 0;
+#endif
+    gctINT32 free;
+#if gcdSECURE_USER
+    gcskSECURE_CACHE_PTR cache;
+#endif
+    gckVIDMEM_NODE nodeObject;
+    gcuVIDMEM_NODE_PTR node;
+
+    gcmkHEADER_ARG("Event=0x%x IDs=0x%x", Event, IDs);
+
+    /* Verify the arguments. */
+    gcmkVERIFY_OBJECT(Event, gcvOBJ_EVENT);
+
+    gcmDEBUG_ONLY(
+        if (IDs != 0)
+        {
+            for (i = 0; i < gcmCOUNTOF(Event->queues); ++i)
+            {
+                if (Event->queues[i].head != gcvNULL)
+                {
+                    gcmkTRACE_ZONE(gcvLEVEL_VERBOSE, gcvZONE_EVENT,
+                                   "Queue(%d): stamp=%llu source=%d",
+                                   i,
+                                   Event->queues[i].stamp,
+                                   Event->queues[i].source);
+                }
+            }
+        }
+    );
+
+
+    for (;;)
+    {
+        gcsEVENT_PTR record;
+
+        /* Grab the mutex queue. */
+        gcmkONERROR(gckOS_AcquireMutex(Event->os,
+                                       Event->eventQueueMutex,
+                                       gcvINFINITE));
+        acquired = gcvTRUE;
+
+#if gcdSMP
+        {
+            gckOS_AtomGet(Event->os, Event->pending, (gctINT32_PTR)&pending);
+        }
+#else
+        /* Suspend interrupts. */
+        gcmkONERROR(gckOS_SuspendInterruptEx(Event->os, Event->kernel->core));
+        suspended = gcvTRUE;
+
+        {
+            pending = Event->pending;
+        }
+
+        /* Resume interrupts. */
+        gcmkONERROR(gckOS_ResumeInterruptEx(Event->os, Event->kernel->core));
+        suspended = gcvFALSE;
+#endif
+
+
+        if (pending == 0)
+        {
+            /* Release the mutex queue. */
+            gcmkONERROR(gckOS_ReleaseMutex(Event->os, Event->eventQueueMutex));
+            acquired = gcvFALSE;
+
+            /* No more pending interrupts - done. */
+            break;
+        }
+
+        if (pending & 0x80000000)
+        {
+            gcmkPRINT("[galcore]: AXI BUS ERROR");
+            gckHARDWARE_DumpGPUState(Event->kernel->hardware);
+            pending &= 0x7FFFFFFF;
+        }
+
+        if (pending & 0x40000000)
+        {
+            gckHARDWARE_DumpMMUException(Event->kernel->hardware);
+
+            gckHARDWARE_DumpGPUState(Event->kernel->hardware);
+
+            pending &= 0xBFFFFFFF;
+        }
+
+        gcmkTRACE_ZONE_N(
+            gcvLEVEL_INFO, gcvZONE_EVENT,
+            gcmSIZEOF(pending),
+            "Pending interrupts 0x%x",
+            pending
+            );
+
+        queue = gcvNULL;
+
+        gcmDEBUG_ONLY(
+            if (IDs == 0)
+            {
+                for (i = 0; i < gcmCOUNTOF(Event->queues); ++i)
+                {
+                    if (Event->queues[i].head != gcvNULL)
+                    {
+                        gcmkTRACE_ZONE(gcvLEVEL_VERBOSE, gcvZONE_EVENT,
+                                       "Queue(%d): stamp=%llu source=%d",
+                                       i,
+                                       Event->queues[i].stamp,
+                                       Event->queues[i].source);
+                    }
+                }
+            }
+        );
+
+        /* Find the oldest pending interrupt. */
+        for (i = 0; i < gcmCOUNTOF(Event->queues); ++i)
+        {
+            if ((Event->queues[i].head != gcvNULL)
+            &&  (pending & (1 << i))
+            )
+            {
+                if ((queue == gcvNULL)
+                ||  (Event->queues[i].stamp < queue->stamp)
+                )
+                {
+                    queue = &Event->queues[i];
+                    mask  = 1 << i;
+#if gcmIS_DEBUG(gcdDEBUG_TRACE)
+                    eventNumber = i;
+#endif
+                }
+            }
+        }
+
+        if (queue == gcvNULL)
+        {
+            gcmkTRACE_ZONE_N(
+                gcvLEVEL_ERROR, gcvZONE_EVENT,
+                gcmSIZEOF(pending),
+                "Interrupts 0x%x are not pending.",
+                pending
+                );
+
+#if gcdSMP
+            {
+                gckOS_AtomClearMask(Event->pending, pending);
+            }
+
+#elif defined(__QNXNTO__)
+            {
+                atomic_clr((gctUINT32_PTR)&Event->pending, pending);
+            }
+#else
+            /* Suspend interrupts. */
+            gcmkONERROR(gckOS_SuspendInterruptEx(Event->os, Event->kernel->core));
+            suspended = gcvTRUE;
+
+            {
+                Event->pending &= ~pending;
+            }
+
+            /* Resume interrupts. */
+            gcmkONERROR(gckOS_ResumeInterruptEx(Event->os, Event->kernel->core));
+            suspended = gcvFALSE;
+#endif
+
+            /* Release the mutex queue. */
+            gcmkONERROR(gckOS_ReleaseMutex(Event->os, Event->eventQueueMutex));
+            acquired = gcvFALSE;
+            break;
+        }
+
+        /* Check whether there is a missed interrupt. */
+        for (i = 0; i < gcmCOUNTOF(Event->queues); ++i)
+        {
+            if ((Event->queues[i].head != gcvNULL)
+            &&  (Event->queues[i].stamp < queue->stamp)
+            &&  (Event->queues[i].source <= queue->source)
+            )
+            {
+                gcmkTRACE_N(
+                    gcvLEVEL_ERROR,
+                    gcmSIZEOF(i) + gcmSIZEOF(Event->queues[i].stamp),
+                    "Event %d lost (stamp %llu)",
+                    i, Event->queues[i].stamp
+                    );
+
+                /* Use this event instead. */
+                queue = &Event->queues[i];
+                mask  = 0;
+            }
+        }
+
+        if (mask != 0)
+        {
+#if gcmIS_DEBUG(gcdDEBUG_TRACE)
+            gcmkTRACE_ZONE_N(
+                gcvLEVEL_INFO, gcvZONE_EVENT,
+                gcmSIZEOF(eventNumber),
+                "Processing interrupt %d",
+                eventNumber
+                );
+#endif
+        }
+
+#if gcdSMP
+        {
+            gckOS_AtomClearMask(Event->pending, mask);
+        }
+
+#elif defined(__QNXNTO__)
+        {
+            atomic_clr(&Event->pending, mask);
+        }
+#else
+        /* Suspend interrupts. */
+        gcmkONERROR(gckOS_SuspendInterruptEx(Event->os, Event->kernel->core));
+        suspended = gcvTRUE;
+
+        {
+            Event->pending &= ~mask;
+        }
+
+        /* Resume interrupts. */
+        gcmkONERROR(gckOS_ResumeInterruptEx(Event->os, Event->kernel->core));
+        suspended = gcvFALSE;
+#endif
+        /* Write out commit stamp.*/
+        *(gctUINT64 *)(Event->kernel->command->fence->logical) = queue->commitStamp;
+
+        /* Grab the event head. */
+        record = queue->head;
+
+        /* Now quickly clear its event list. */
+        queue->head = gcvNULL;
+
+        /* Release the mutex queue. */
+        gcmkONERROR(gckOS_ReleaseMutex(Event->os, Event->eventQueueMutex));
+        acquired = gcvFALSE;
+
+        /* Increase the number of free events. */
+        gcmkONERROR(gckOS_AtomIncrement(Event->os, Event->freeAtom, &free));
+
+        /* Walk all events for this interrupt. */
+        while (record != gcvNULL)
+        {
+            gcsEVENT_PTR recordNext;
+#ifndef __QNXNTO__
+            gctPOINTER logical;
+#endif
+#if gcdSECURE_USER
+            gctSIZE_T bytes;
+#endif
+
+            /* Grab next record. */
+            recordNext = record->next;
+
+#ifdef __QNXNTO__
+            /* Assign record->processID as the pid for this galcore thread.
+             * Used in OS calls like gckOS_UnlockMemory() which do not take a pid.
+             */
+            drv_thread_specific_key_assign(record->processID, 0, Event->kernel->core);
+#endif
+
+#if gcdSECURE_USER
+            /* Get the cache that belongs to this process. */
+            gcmkONERROR(gckKERNEL_GetProcessDBCache(Event->kernel,
+                        record->processID,
+                        &cache));
+#endif
+
+            gcmkTRACE_ZONE_N(
+                gcvLEVEL_INFO, gcvZONE_EVENT,
+                gcmSIZEOF(record->info.command),
+                "Processing event type: %d",
+                record->info.command
+                );
+
+            switch (record->info.command)
+            {
+            case gcvHAL_FREE_NON_PAGED_MEMORY:
+                gcmkTRACE_ZONE(gcvLEVEL_VERBOSE, gcvZONE_EVENT,
+                               "gcvHAL_FREE_NON_PAGED_MEMORY: 0x%x",
+                               gcmNAME_TO_PTR(record->info.u.FreeNonPagedMemory.physical));
+
+                /* Free non-paged memory. */
+                status = gckOS_FreeNonPagedMemory(
+                            Event->os,
+                            (gctSIZE_T) record->info.u.FreeNonPagedMemory.bytes,
+                            gcmNAME_TO_PTR(record->info.u.FreeNonPagedMemory.physical),
+                            gcmUINT64_TO_PTR(record->info.u.FreeNonPagedMemory.logical));
+
+                if (gcmIS_SUCCESS(status))
+                {
+#if gcdSECURE_USER
+                    gcmkVERIFY_OK(gckKERNEL_FlushTranslationCache(
+                        Event->kernel,
+                        cache,
+                        gcmUINT64_TO_PTR(record->record.u.FreeNonPagedMemory.logical),
+                        (gctSIZE_T) record->record.u.FreeNonPagedMemory.bytes));
+#endif
+                }
+                gcmRELEASE_NAME(record->info.u.FreeNonPagedMemory.physical);
+                break;
+
+            case gcvHAL_FREE_CONTIGUOUS_MEMORY:
+                gcmkTRACE_ZONE(
+                    gcvLEVEL_VERBOSE, gcvZONE_EVENT,
+                    "gcvHAL_FREE_CONTIGUOUS_MEMORY: 0x%x",
+                    gcmNAME_TO_PTR(record->info.u.FreeContiguousMemory.physical));
+
+                /* Unmap the user memory. */
+                status = gckOS_FreeContiguous(
+                            Event->os,
+                            gcmNAME_TO_PTR(record->info.u.FreeContiguousMemory.physical),
+                            gcmUINT64_TO_PTR(record->info.u.FreeContiguousMemory.logical),
+                            (gctSIZE_T) record->info.u.FreeContiguousMemory.bytes);
+
+                if (gcmIS_SUCCESS(status))
+                {
+#if gcdSECURE_USER
+                    gcmkVERIFY_OK(gckKERNEL_FlushTranslationCache(
+                        Event->kernel,
+                        cache,
+                        gcmUINT64_TO_PTR(event->event.u.FreeContiguousMemory.logical),
+                        (gctSIZE_T) event->event.u.FreeContiguousMemory.bytes));
+#endif
+                }
+                gcmRELEASE_NAME(record->info.u.FreeContiguousMemory.physical);
+                break;
+
+            case gcvHAL_WRITE_DATA:
+#ifndef __QNXNTO__
+                /* Convert physical into logical address. */
+                gcmkERR_BREAK(
+                    gckOS_MapPhysical(Event->os,
+                                      record->info.u.WriteData.address,
+                                      gcmSIZEOF(gctUINT32),
+                                      &logical));
+
+                /* Write data. */
+                gcmkERR_BREAK(
+                    gckOS_WriteMemory(Event->os,
+                                      logical,
+                                      record->info.u.WriteData.data));
+
+                /* Unmap the physical memory. */
+                gcmkERR_BREAK(
+                    gckOS_UnmapPhysical(Event->os,
+                                        logical,
+                                        gcmSIZEOF(gctUINT32)));
+#else
+                /* Write data. */
+                gcmkERR_BREAK(
+                    gckOS_WriteMemory(Event->os,
+                                      (gctPOINTER)
+                                          record->info.u.WriteData.address,
+                                      record->info.u.WriteData.data));
+#endif
+                break;
+
+            case gcvHAL_UNLOCK_VIDEO_MEMORY:
+                gcmkTRACE_ZONE(gcvLEVEL_VERBOSE, gcvZONE_EVENT,
+                               "gcvHAL_UNLOCK_VIDEO_MEMORY: 0x%x",
+                               record->info.u.UnlockVideoMemory.node);
+
+                nodeObject = gcmUINT64_TO_PTR(record->info.u.UnlockVideoMemory.node);
+
+                node = nodeObject->node;
+
+                /* Save node information before it disappears. */
+#if gcdSECURE_USER
+                node = event->event.u.UnlockVideoMemory.node;
+                if (node->VidMem.memory->object.type == gcvOBJ_VIDMEM)
+                {
+                    logical = gcvNULL;
+                    bytes   = 0;
+                }
+                else
+                {
+                    logical = node->Virtual.logical;
+                    bytes   = node->Virtual.bytes;
+                }
+#endif
+
+                /* Unlock. */
+                status = gckVIDMEM_Unlock(
+                    Event->kernel,
+                    nodeObject,
+                    record->info.u.UnlockVideoMemory.type,
+                    gcvNULL);
+
+#if gcdSECURE_USER
+                if (gcmIS_SUCCESS(status) && (logical != gcvNULL))
+                {
+                    gcmkVERIFY_OK(gckKERNEL_FlushTranslationCache(
+                        Event->kernel,
+                        cache,
+                        logical,
+                        bytes));
+                }
+#endif
+
+#if gcdPROCESS_ADDRESS_SPACE
+                gcmkVERIFY_OK(gckVIDMEM_NODE_Unlock(
+                    Event->kernel,
+                    nodeObject,
+                    record->processID
+                    ));
+#endif
+
+                status = gckVIDMEM_NODE_Dereference(Event->kernel, nodeObject);
+                break;
+
+            case gcvHAL_SIGNAL:
+                signal = gcmUINT64_TO_PTR(record->info.u.Signal.signal);
+                gcmkTRACE_ZONE(gcvLEVEL_VERBOSE, gcvZONE_EVENT,
+                               "gcvHAL_SIGNAL: 0x%x",
+                               signal);
+
+#ifdef __QNXNTO__
+                if ((record->info.u.Signal.coid == 0)
+                &&  (record->info.u.Signal.rcvid == 0)
+                )
+                {
+                    /* Kernel signal. */
+                    gcmkERR_BREAK(
+                        gckOS_SignalPulse(Event->os,
+                                          signal));
+                }
+                else
+                {
+                    /* User signal. */
+                    gcmkERR_BREAK(
+                        gckOS_UserSignal(Event->os,
+                                         signal,
+                                         record->info.u.Signal.rcvid,
+                                         record->info.u.Signal.coid));
+                }
+#else
+                /* Set signal. */
+                if (gcmUINT64_TO_PTR(record->info.u.Signal.process) == gcvNULL)
+                {
+                    /* Kernel signal. */
+                    gcmkERR_BREAK(
+                        gckOS_Signal(Event->os,
+                                     signal,
+                                     gcvTRUE));
+                }
+                else
+                {
+                    /* User signal. */
+                    gcmkERR_BREAK(
+                        gckOS_UserSignal(Event->os,
+                                         signal,
+                                         gcmUINT64_TO_PTR(record->info.u.Signal.process)));
+                }
+
+                gcmkASSERT(record->info.u.Signal.auxSignal == 0);
+#endif
+                break;
+
+            case gcvHAL_UNMAP_USER_MEMORY:
+                info = gcmNAME_TO_PTR(record->info.u.UnmapUserMemory.info);
+                gcmkTRACE_ZONE(gcvLEVEL_VERBOSE, gcvZONE_EVENT,
+                               "gcvHAL_UNMAP_USER_MEMORY: 0x%x",
+                               info);
+
+                /* Unmap the user memory. */
+                status = gckOS_UnmapUserMemory(
+                    Event->os,
+                    Event->kernel->core,
+                    gcmUINT64_TO_PTR(record->info.u.UnmapUserMemory.memory),
+                    (gctSIZE_T) record->info.u.UnmapUserMemory.size,
+                    info,
+                    record->info.u.UnmapUserMemory.address);
+
+#if gcdSECURE_USER
+                if (gcmIS_SUCCESS(status))
+                {
+                    gcmkVERIFY_OK(gckKERNEL_FlushTranslationCache(
+                        Event->kernel,
+                        cache,
+                        gcmUINT64_TO_PTR(record->info.u.UnmapUserMemory.memory),
+                        (gctSIZE_T) record->info.u.UnmapUserMemory.size));
+                }
+#endif
+                gcmRELEASE_NAME(record->info.u.UnmapUserMemory.info);
+                break;
+
+            case gcvHAL_TIMESTAMP:
+                gcmkTRACE_ZONE(gcvLEVEL_VERBOSE, gcvZONE_EVENT,
+                               "gcvHAL_TIMESTAMP: %d %d",
+                               record->info.u.TimeStamp.timer,
+                               record->info.u.TimeStamp.request);
+
+                /* Process the timestamp. */
+                switch (record->info.u.TimeStamp.request)
+                {
+                case 0:
+                    status = gckOS_GetTime(&Event->kernel->timers[
+                                           record->info.u.TimeStamp.timer].
+                                           stopTime);
+                    break;
+
+                case 1:
+                    status = gckOS_GetTime(&Event->kernel->timers[
+                                           record->info.u.TimeStamp.timer].
+                                           startTime);
+                    break;
+
+                default:
+                    gcmkTRACE_ZONE_N(
+                        gcvLEVEL_ERROR, gcvZONE_EVENT,
+                        gcmSIZEOF(record->info.u.TimeStamp.request),
+                        "Invalid timestamp request: %d",
+                        record->info.u.TimeStamp.request
+                        );
+
+                    status = gcvSTATUS_INVALID_ARGUMENT;
+                    break;
+                }
+                break;
+
+             case gcvHAL_FREE_VIRTUAL_COMMAND_BUFFER:
+                 gcmkVERIFY_OK(
+                     gckKERNEL_DestroyVirtualCommandBuffer(Event->kernel,
+                         (gctSIZE_T) record->info.u.FreeVirtualCommandBuffer.bytes,
+                         gcmNAME_TO_PTR(record->info.u.FreeVirtualCommandBuffer.physical),
+                         gcmUINT64_TO_PTR(record->info.u.FreeVirtualCommandBuffer.logical)
+                         ));
+                 gcmRELEASE_NAME(record->info.u.FreeVirtualCommandBuffer.physical);
+                 break;
+
+#if gcdANDROID_NATIVE_FENCE_SYNC
+            case gcvHAL_SYNC_POINT:
+                {
+                    gctSYNC_POINT syncPoint;
+
+                    syncPoint = gcmUINT64_TO_PTR(record->info.u.SyncPoint.syncPoint);
+                    status = gckOS_SignalSyncPoint(Event->os, syncPoint);
+                }
+                break;
+#endif
+
+#if gcdPROCESS_ADDRESS_SPACE
+            case gcvHAL_DESTROY_MMU:
+                status = gckMMU_Destroy(gcmUINT64_TO_PTR(record->info.u.DestroyMmu.mmu));
+                break;
+#endif
+
+            case gcvHAL_COMMIT_DONE:
+                break;
+
+            default:
+                /* Invalid argument. */
+                gcmkTRACE_ZONE_N(
+                    gcvLEVEL_ERROR, gcvZONE_EVENT,
+                    gcmSIZEOF(record->info.command),
+                    "Unknown event type: %d",
+                    record->info.command
+                    );
+
+                status = gcvSTATUS_INVALID_ARGUMENT;
+                break;
+            }
+
+            /* Make sure there are no errors generated. */
+            if (gcmIS_ERROR(status))
+            {
+                gcmkTRACE_ZONE_N(
+                    gcvLEVEL_WARNING, gcvZONE_EVENT,
+                    gcmSIZEOF(status),
+                    "Event produced status: %d(%s)",
+                    status, gckOS_DebugStatus2Name(status));
+            }
+
+            /* Free the event. */
+            gcmkVERIFY_OK(gckEVENT_FreeRecord(Event, record));
+
+            /* Advance to next record. */
+            record = recordNext;
+        }
+
+        gcmkTRACE_ZONE(gcvLEVEL_VERBOSE, gcvZONE_EVENT,
+                       "Handled interrupt 0x%x", mask);
+    }
+
+
+    if (IDs == 0)
+    {
+        gcmkONERROR(_TryToIdleGPU(Event));
+    }
+
+    /* Success. */
+    gcmkFOOTER_NO();
+    return gcvSTATUS_OK;
+
+OnError:
+    if (acquired)
+    {
+        /* Release mutex. */
+        gcmkVERIFY_OK(gckOS_ReleaseMutex(Event->os, Event->eventQueueMutex));
+    }
+
+#if !gcdSMP
+    if (suspended)
+    {
+        /* Resume interrupts. */
+        gcmkVERIFY_OK(gckOS_ResumeInterruptEx(Event->os, Event->kernel->core));
+    }
+#endif
+
+    /* Return the status. */
+    gcmkFOOTER();
+    return status;
+}
+
+/*******************************************************************************
+**  gckEVENT_FreeProcess
+**
+**  Free all events owned by a particular process ID.
+**
+**  INPUT:
+**
+**      gckEVENT Event
+**          Pointer to an gckEVENT object.
+**
+**      gctUINT32 ProcessID
+**          Process ID of the process to be freed up.
+**
+**  OUTPUT:
+**
+**      Nothing.
+*/
+gceSTATUS
+gckEVENT_FreeProcess(
+    IN gckEVENT Event,
+    IN gctUINT32 ProcessID
+    )
+{
+    gctSIZE_T i;
+    gctBOOL acquired = gcvFALSE;
+    gcsEVENT_PTR record, next;
+    gceSTATUS status;
+    gcsEVENT_PTR deleteHead, deleteTail;
+
+    gcmkHEADER_ARG("Event=0x%x ProcessID=%d", Event, ProcessID);
+
+    /* Verify the arguments. */
+    gcmkVERIFY_OBJECT(Event, gcvOBJ_EVENT);
+
+    /* Walk through all queues. */
+    for (i = 0; i < gcmCOUNTOF(Event->queues); ++i)
+    {
+        if (Event->queues[i].head != gcvNULL)
+        {
+            /* Grab the event queue mutex. */
+            gcmkONERROR(gckOS_AcquireMutex(Event->os,
+                                           Event->eventQueueMutex,
+                                           gcvINFINITE));
+            acquired = gcvTRUE;
+
+            /* Grab the mutex head. */
+            record                = Event->queues[i].head;
+            Event->queues[i].head = gcvNULL;
+            Event->queues[i].tail = gcvNULL;
+            deleteHead            = gcvNULL;
+            deleteTail            = gcvNULL;
+
+            while (record != gcvNULL)
+            {
+                next = record->next;
+                if (record->processID == ProcessID)
+                {
+                    if (deleteHead == gcvNULL)
+                    {
+                        deleteHead = record;
+                    }
+                    else
+                    {
+                        deleteTail->next = record;
+                    }
+
+                    deleteTail = record;
+                }
+                else
+                {
+                    if (Event->queues[i].head == gcvNULL)
+                    {
+                        Event->queues[i].head = record;
+                    }
+                    else
+                    {
+                        Event->queues[i].tail->next = record;
+                    }
+
+                    Event->queues[i].tail = record;
+                }
+
+                record->next = gcvNULL;
+                record = next;
+            }
+
+            /* Release the mutex queue. */
+            gcmkONERROR(gckOS_ReleaseMutex(Event->os, Event->eventQueueMutex));
+            acquired = gcvFALSE;
+
+            /* Loop through the entire list of events. */
+            for (record = deleteHead; record != gcvNULL; record = next)
+            {
+                /* Get the next event record. */
+                next = record->next;
+
+                /* Free the event record. */
+                gcmkONERROR(gckEVENT_FreeRecord(Event, record));
+            }
+        }
+    }
+
+    gcmkONERROR(_TryToIdleGPU(Event));
+
+    /* Success. */
+    gcmkFOOTER_NO();
+    return gcvSTATUS_OK;
+
+OnError:
+    /* Release the event queue mutex. */
+    if (acquired)
+    {
+        gcmkVERIFY_OK(gckOS_ReleaseMutex(Event->os, Event->eventQueueMutex));
+    }
+
+    /* Return the status. */
+    gcmkFOOTER();
+    return status;
+}
+
+/*******************************************************************************
+**  gckEVENT_Stop
+**
+**  Stop the hardware using the End event mechanism.
+**
+**  INPUT:
+**
+**      gckEVENT Event
+**          Pointer to an gckEVENT object.
+**
+**      gctUINT32 ProcessID
+**          Process ID Logical belongs.
+**
+**      gctPHYS_ADDR Handle
+**          Physical address handle.  If gcvNULL it is video memory.
+**
+**      gctPOINTER Logical
+**          Logical address to flush.
+**
+**      gctSIGNAL Signal
+**          Pointer to the signal to trigger.
+**
+**  OUTPUT:
+**
+**      Nothing.
+*/
+gceSTATUS
+gckEVENT_Stop(
+    IN gckEVENT Event,
+    IN gctUINT32 ProcessID,
+    IN gctUINT32 Handle,
+    IN gctPOINTER Logical,
+    IN gctSIGNAL Signal,
+    IN OUT gctUINT32 * waitSize
+    )
+{
+    gceSTATUS status;
+   /* gctSIZE_T waitSize;*/
+    gcsEVENT_PTR record;
+    gctUINT8 id = 0xFF;
+
+    gcmkHEADER_ARG("Event=0x%x ProcessID=%u Handle=0x%x Logical=0x%x "
+                   "Signal=0x%x",
+                   Event, ProcessID, Handle, Logical, Signal);
+
+    /* Verify the arguments. */
+    gcmkVERIFY_OBJECT(Event, gcvOBJ_EVENT);
+
+    /* Submit the current event queue. */
+    gcmkONERROR(gckEVENT_Submit(Event, gcvTRUE, gcvFALSE));
+    gcmkONERROR(gckEVENT_GetEvent(Event, gcvTRUE, &id, gcvKERNEL_PIXEL));
+
+    /* Allocate a record. */
+    gcmkONERROR(gckEVENT_AllocateRecord(Event, gcvTRUE, &record));
+
+    /* Initialize the record. */
+    record->next = gcvNULL;
+    record->processID               = ProcessID;
+    record->info.command            = gcvHAL_SIGNAL;
+    record->info.u.Signal.signal    = gcmPTR_TO_UINT64(Signal);
+#ifdef __QNXNTO__
+    record->info.u.Signal.coid      = 0;
+    record->info.u.Signal.rcvid     = 0;
+#endif
+    record->info.u.Signal.auxSignal = 0;
+    record->info.u.Signal.process   = 0;
+
+    /* Append the record. */
+    Event->queues[id].head      = record;
+
+    /* Replace last WAIT with END. */
+    gcmkONERROR(gckHARDWARE_End(
+        Event->kernel->hardware, Logical, waitSize
+        ));
+
+#if gcdNONPAGED_MEMORY_CACHEABLE
+    /* Flush the cache for the END. */
+    gcmkONERROR(gckOS_CacheClean(
+        Event->os,
+        ProcessID,
+        gcvNULL,
+        (gctUINT32)Handle,
+        Logical,
+        *waitSize
+        ));
+#endif
+
+    /* Wait for the signal. */
+    gcmkONERROR(gckOS_WaitSignal(Event->os, Signal, gcvINFINITE));
+
+    /* Success. */
+    gcmkFOOTER_NO();
+    return gcvSTATUS_OK;
+
+OnError:
+
+    /* Return the status. */
+    gcmkFOOTER();
+    return status;
+}
+
+static void
+_PrintRecord(
+    gcsEVENT_PTR record
+    )
+{
+    switch (record->info.command)
+    {
+    case gcvHAL_FREE_NON_PAGED_MEMORY:
+        gcmkPRINT("      gcvHAL_FREE_NON_PAGED_MEMORY");
+            break;
+
+    case gcvHAL_FREE_CONTIGUOUS_MEMORY:
+        gcmkPRINT("      gcvHAL_FREE_CONTIGUOUS_MEMORY");
+            break;
+
+    case gcvHAL_WRITE_DATA:
+        gcmkPRINT("      gcvHAL_WRITE_DATA");
+       break;
+
+    case gcvHAL_UNLOCK_VIDEO_MEMORY:
+        gcmkPRINT("      gcvHAL_UNLOCK_VIDEO_MEMORY");
+        break;
+
+    case gcvHAL_SIGNAL:
+        gcmkPRINT("      gcvHAL_SIGNAL process=%d signal=0x%x",
+                  record->info.u.Signal.process,
+                  record->info.u.Signal.signal);
+        break;
+
+    case gcvHAL_UNMAP_USER_MEMORY:
+        gcmkPRINT("      gcvHAL_UNMAP_USER_MEMORY");
+       break;
+
+    case gcvHAL_TIMESTAMP:
+        gcmkPRINT("      gcvHAL_TIMESTAMP");
+        break;
+
+    case gcvHAL_COMMIT_DONE:
+        gcmkPRINT("      gcvHAL_COMMIT_DONE");
+        break;
+
+    case gcvHAL_FREE_VIRTUAL_COMMAND_BUFFER:
+        gcmkPRINT("      gcvHAL_FREE_VIRTUAL_COMMAND_BUFFER logical=0x%08x",
+                  record->info.u.FreeVirtualCommandBuffer.logical);
+        break;
+
+    case gcvHAL_SYNC_POINT:
+        gcmkPRINT("      gcvHAL_SYNC_POINT syncPoint=0x%08x",
+                  gcmUINT64_TO_PTR(record->info.u.SyncPoint.syncPoint));
+
+        break;
+
+    case gcvHAL_DESTROY_MMU:
+        gcmkPRINT("      gcvHAL_DESTORY_MMU mmu=0x%08x",
+                  gcmUINT64_TO_PTR(record->info.u.DestroyMmu.mmu));
+
+        break;
+    default:
+        gcmkPRINT("      Illegal Event %d", record->info.command);
+        break;
+    }
+}
+
+/*******************************************************************************
+** gckEVENT_Dump
+**
+** Dump record in event queue when stuck happens.
+** No protection for the event queue.
+**/
+gceSTATUS
+gckEVENT_Dump(
+    IN gckEVENT Event
+    )
+{
+    gcsEVENT_QUEUE_PTR queueHead = Event->queueHead;
+    gcsEVENT_QUEUE_PTR queue;
+    gcsEVENT_PTR record = gcvNULL;
+    gctINT i;
+#if gcdINTERRUPT_STATISTIC
+    gctINT32 pendingInterrupt;
+    gctUINT32 intrAcknowledge;
+#endif
+
+    gcmkHEADER_ARG("Event=0x%x", Event);
+
+    gcmkPRINT("**************************\n");
+    gcmkPRINT("***  EVENT STATE DUMP  ***\n");
+    gcmkPRINT("**************************\n");
+
+    gcmkPRINT("  Unsumbitted Event:");
+    while(queueHead)
+    {
+        queue = queueHead;
+        record = queueHead->head;
+
+        gcmkPRINT("    [%x]:", queue);
+        while(record)
+        {
+            _PrintRecord(record);
+            record = record->next;
+        }
+
+        if (queueHead == Event->queueTail)
+        {
+            queueHead = gcvNULL;
+        }
+        else
+        {
+            queueHead = queueHead->next;
+        }
+    }
+
+    gcmkPRINT("  Untriggered Event:");
+    for (i = 0; i < gcmCOUNTOF(Event->queues); i++)
+    {
+        queue = &Event->queues[i];
+        record = queue->head;
+
+        gcmkPRINT("    [%d]:", i);
+        while(record)
+        {
+            _PrintRecord(record);
+            record = record->next;
+        }
+    }
+
+#if gcdINTERRUPT_STATISTIC
+    gckOS_AtomGet(Event->os, Event->interruptCount, &pendingInterrupt);
+    gcmkPRINT("  Number of Pending Interrupt: %d", pendingInterrupt);
+
+    if (Event->kernel->recovery == 0)
+    {
+        gckOS_ReadRegisterEx(
+            Event->os,
+            Event->kernel->core,
+            0x10,
+            &intrAcknowledge
+            );
+
+        gcmkPRINT("  INTR_ACKNOWLEDGE=0x%x", intrAcknowledge);
+    }
+#endif
+
+    gcmkFOOTER_NO();
+    return gcvSTATUS_OK;
+}
+
diff --git a/src/hal/kernel/gc_hal_kernel_heap.c b/src/hal/kernel/gc_hal_kernel_heap.c
new file mode 100755
index 0000000..3d7da98
--- /dev/null
+++ b/src/hal/kernel/gc_hal_kernel_heap.c
@@ -0,0 +1,892 @@
+/****************************************************************************
+*
+*    The MIT License (MIT)
+*
+*    Copyright (c) 2014 Vivante Corporation
+*
+*    Permission is hereby granted, free of charge, to any person obtaining a
+*    copy of this software and associated documentation files (the "Software"),
+*    to deal in the Software without restriction, including without limitation
+*    the rights to use, copy, modify, merge, publish, distribute, sublicense,
+*    and/or sell copies of the Software, and to permit persons to whom the
+*    Software is furnished to do so, subject to the following conditions:
+*
+*    The above copyright notice and this permission notice shall be included in
+*    all copies or substantial portions of the Software.
+*
+*    THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+*    IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+*    FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+*    AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+*    LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+*    FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+*    DEALINGS IN THE SOFTWARE.
+*
+*****************************************************************************
+*
+*    The GPL License (GPL)
+*
+*    Copyright (C) 2014  Vivante Corporation
+*
+*    This program is free software; you can redistribute it and/or
+*    modify it under the terms of the GNU General Public License
+*    as published by the Free Software Foundation; either version 2
+*    of the License, or (at your option) any later version.
+*
+*    This program is distributed in the hope that it will be useful,
+*    but WITHOUT ANY WARRANTY; without even the implied warranty of
+*    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+*    GNU General Public License for more details.
+*
+*    You should have received a copy of the GNU General Public License
+*    along with this program; if not, write to the Free Software Foundation,
+*    Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+*
+*****************************************************************************
+*
+*    Note: This software is released under dual MIT and GPL licenses. A
+*    recipient may use this file under the terms of either the MIT license or
+*    GPL License. If you wish to use only one license not the other, you can
+*    indicate your decision by deleting one of the above license notices in your
+*    version of this file.
+*
+*****************************************************************************/
+
+
+/**
+**  @file
+**  gckHEAP object for kernel HAL layer.  The heap implemented here is an arena-
+**  based memory allocation.  An arena-based memory heap allocates data quickly
+**  from specified arenas and reduces memory fragmentation.
+**
+*/
+#include "gc_hal_kernel_precomp.h"
+
+#define _GC_OBJ_ZONE            gcvZONE_HEAP
+
+/*******************************************************************************
+***** Structures ***************************************************************
+*******************************************************************************/
+#define gcdIN_USE               ((gcskNODE_PTR)gcvMAXUINTPTR_T)
+
+typedef struct _gcskNODE *      gcskNODE_PTR;
+typedef struct _gcskNODE
+{
+    /* Number of byets in node. */
+    gctSIZE_T                   bytes;
+
+    /* Pointer to next free node, or gcvNULL to mark the node as freed, or
+    ** gcdIN_USE to mark the node as used. */
+    gcskNODE_PTR                next;
+
+#if gcmIS_DEBUG(gcdDEBUG_CODE)
+    /* Time stamp of allocation. */
+    gctUINT64                   timeStamp;
+#endif
+}
+gcskNODE;
+
+typedef struct _gcskHEAP    *   gcskHEAP_PTR;
+typedef struct _gcskHEAP
+{
+    /* Linked list. */
+    gcskHEAP_PTR                next;
+    gcskHEAP_PTR                prev;
+
+    /* Heap size. */
+    gctSIZE_T                   size;
+
+    /* Free list. */
+    gcskNODE_PTR                freeList;
+}
+gcskHEAP;
+
+struct _gckHEAP
+{
+    /* Object. */
+    gcsOBJECT                   object;
+
+    /* Pointer to a gckOS object. */
+    gckOS                       os;
+
+    /* Locking mutex. */
+    gctPOINTER                  mutex;
+
+    /* Allocation parameters. */
+    gctSIZE_T                   allocationSize;
+
+    /* Heap list. */
+    gcskHEAP_PTR                heap;
+#if gcmIS_DEBUG(gcdDEBUG_CODE)
+    gctUINT64                   timeStamp;
+#endif
+
+#if VIVANTE_PROFILER || gcmIS_DEBUG(gcdDEBUG_CODE)
+    /* Profile information. */
+    gctUINT32                   allocCount;
+    gctUINT64                   allocBytes;
+    gctUINT64                   allocBytesMax;
+    gctUINT64                   allocBytesTotal;
+    gctUINT32                   heapCount;
+    gctUINT32                   heapCountMax;
+    gctUINT64                   heapMemory;
+    gctUINT64                   heapMemoryMax;
+#endif
+};
+
+/*******************************************************************************
+***** Static Support Functions *************************************************
+*******************************************************************************/
+
+#if gcmIS_DEBUG(gcdDEBUG_CODE)
+static gctSIZE_T
+_DumpHeap(
+    IN gcskHEAP_PTR Heap
+    )
+{
+    gctPOINTER p;
+    gctSIZE_T leaked = 0;
+
+    /* Start at first node. */
+    for (p = Heap + 1;;)
+    {
+        /* Convert the pointer. */
+        gcskNODE_PTR node = (gcskNODE_PTR) p;
+
+        /* Check if this is a used node. */
+        if (node->next == gcdIN_USE)
+        {
+            /* Print the leaking node. */
+            gcmkTRACE_ZONE(gcvLEVEL_WARNING, gcvZONE_HEAP,
+                           "Detected leaking: node=0x%x bytes=%lu timeStamp=%llu "
+                           "(%08X %c%c%c%c)",
+                           node, node->bytes, node->timeStamp,
+                           ((gctUINT32_PTR) (node + 1))[0],
+                           gcmPRINTABLE(((gctUINT8_PTR) (node + 1))[0]),
+                           gcmPRINTABLE(((gctUINT8_PTR) (node + 1))[1]),
+                           gcmPRINTABLE(((gctUINT8_PTR) (node + 1))[2]),
+                           gcmPRINTABLE(((gctUINT8_PTR) (node + 1))[3]));
+
+            /* Add leaking byte count. */
+            leaked += node->bytes;
+        }
+
+        /* Test for end of heap. */
+        if (node->bytes == 0)
+        {
+            break;
+        }
+
+        else
+        {
+            /* Move to next node. */
+            p = (gctUINT8_PTR) node + node->bytes;
+        }
+    }
+
+    /* Return the number of leaked bytes. */
+    return leaked;
+}
+#endif
+
+static gceSTATUS
+_CompactKernelHeap(
+    IN gckHEAP Heap
+    )
+{
+    gcskHEAP_PTR heap, next;
+    gctPOINTER p;
+    gcskHEAP_PTR freeList = gcvNULL;
+
+    gcmkHEADER_ARG("Heap=0x%x", Heap);
+
+    /* Walk all the heaps. */
+    for (heap = Heap->heap; heap != gcvNULL; heap = next)
+    {
+        gcskNODE_PTR lastFree = gcvNULL;
+
+        /* Zero out the free list. */
+        heap->freeList = gcvNULL;
+
+        /* Start at the first node. */
+        for (p = (gctUINT8_PTR) (heap + 1);;)
+        {
+            /* Convert the pointer. */
+            gcskNODE_PTR node = (gcskNODE_PTR) p;
+
+            gcmkASSERT(p <= (gctPOINTER) ((gctUINT8_PTR) (heap + 1) + heap->size));
+
+            /* Test if this node not used. */
+            if (node->next != gcdIN_USE)
+            {
+                /* Test if this is the end of the heap. */
+                if (node->bytes == 0)
+                {
+                    break;
+                }
+
+                /* Test of this is the first free node. */
+                else if (lastFree == gcvNULL)
+                {
+                    /* Initialzie the free list. */
+                    heap->freeList = node;
+                    lastFree       = node;
+                }
+
+                else
+                {
+                    /* Test if this free node is contiguous with the previous
+                    ** free node. */
+                    if ((gctUINT8_PTR) lastFree + lastFree->bytes == p)
+                    {
+                        /* Just increase the size of the previous free node. */
+                        lastFree->bytes += node->bytes;
+                    }
+                    else
+                    {
+                        /* Add to linked list. */
+                        lastFree->next = node;
+                        lastFree       = node;
+                    }
+                }
+            }
+
+            /* Move to next node. */
+            p = (gctUINT8_PTR) node + node->bytes;
+        }
+
+        /* Mark the end of the chain. */
+        if (lastFree != gcvNULL)
+        {
+            lastFree->next = gcvNULL;
+        }
+
+        /* Get next heap. */
+        next = heap->next;
+
+        /* Check if the entire heap is free. */
+        if ((heap->freeList != gcvNULL)
+        &&  (heap->freeList->bytes == heap->size - gcmSIZEOF(gcskNODE))
+        )
+        {
+            /* Remove the heap from the linked list. */
+            if (heap->prev == gcvNULL)
+            {
+                Heap->heap = next;
+            }
+            else
+            {
+                heap->prev->next = next;
+            }
+
+            if (heap->next != gcvNULL)
+            {
+                heap->next->prev = heap->prev;
+            }
+
+#if VIVANTE_PROFILER || gcmIS_DEBUG(gcdDEBUG_CODE)
+            /* Update profiling. */
+            Heap->heapCount  -= 1;
+            Heap->heapMemory -= heap->size + gcmSIZEOF(gcskHEAP);
+#endif
+
+            /* Add this heap to the list of heaps that need to be freed. */
+            heap->next = freeList;
+            freeList   = heap;
+        }
+    }
+
+    if (freeList != gcvNULL)
+    {
+        /* Release the mutex, remove any chance for a dead lock. */
+        gcmkVERIFY_OK(
+            gckOS_ReleaseMutex(Heap->os, Heap->mutex));
+
+        /* Free all heaps in the free list. */
+        for (heap = freeList; heap != gcvNULL; heap = next)
+        {
+            /* Get pointer to the next heap. */
+            next = heap->next;
+
+            /* Free the heap. */
+            gcmkTRACE_ZONE(gcvLEVEL_INFO, gcvZONE_HEAP,
+                           "Freeing heap 0x%x (%lu bytes)",
+                           heap, heap->size + gcmSIZEOF(gcskHEAP));
+            gcmkVERIFY_OK(gckOS_FreeMemory(Heap->os, heap));
+        }
+
+        /* Acquire the mutex again. */
+        gcmkVERIFY_OK(
+            gckOS_AcquireMutex(Heap->os, Heap->mutex, gcvINFINITE));
+    }
+
+    /* Success. */
+    gcmkFOOTER_NO();
+    return gcvSTATUS_OK;
+}
+
+/*******************************************************************************
+***** gckHEAP API Code *********************************************************
+*******************************************************************************/
+
+/*******************************************************************************
+**
+**  gckHEAP_Construct
+**
+**  Construct a new gckHEAP object.
+**
+**  INPUT:
+**
+**      gckOS Os
+**          Pointer to a gckOS object.
+**
+**      gctSIZE_T AllocationSize
+**          Minimum size per arena.
+**
+**  OUTPUT:
+**
+**      gckHEAP * Heap
+**          Pointer to a variable that will hold the pointer to the gckHEAP
+**          object.
+*/
+gceSTATUS
+gckHEAP_Construct(
+    IN gckOS Os,
+    IN gctSIZE_T AllocationSize,
+    OUT gckHEAP * Heap
+    )
+{
+    gceSTATUS status;
+    gckHEAP heap = gcvNULL;
+    gctPOINTER pointer = gcvNULL;
+
+    gcmkHEADER_ARG("Os=0x%x AllocationSize=%lu", Os, AllocationSize);
+
+    /* Verify the arguments. */
+    gcmkVERIFY_OBJECT(Os, gcvOBJ_OS);
+    gcmkVERIFY_ARGUMENT(Heap != gcvNULL);
+
+    /* Allocate the gckHEAP object. */
+    gcmkONERROR(gckOS_AllocateMemory(Os,
+                                     gcmSIZEOF(struct _gckHEAP),
+                                     &pointer));
+
+    heap = pointer;
+
+    /* Initialize the gckHEAP object. */
+    heap->object.type    = gcvOBJ_HEAP;
+    heap->os             = Os;
+    heap->allocationSize = AllocationSize;
+    heap->heap           = gcvNULL;
+#if gcmIS_DEBUG(gcdDEBUG_CODE)
+    heap->timeStamp      = 0;
+#endif
+
+#if VIVANTE_PROFILER || gcmIS_DEBUG(gcdDEBUG_CODE)
+    /* Zero the counters. */
+    heap->allocCount      = 0;
+    heap->allocBytes      = 0;
+    heap->allocBytesMax   = 0;
+    heap->allocBytesTotal = 0;
+    heap->heapCount       = 0;
+    heap->heapCountMax    = 0;
+    heap->heapMemory      = 0;
+    heap->heapMemoryMax   = 0;
+#endif
+
+    /* Create the mutex. */
+    gcmkONERROR(gckOS_CreateMutex(Os, &heap->mutex));
+
+    /* Return the pointer to the gckHEAP object. */
+    *Heap = heap;
+
+    /* Success. */
+    gcmkFOOTER_ARG("*Heap=0x%x", *Heap);
+    return gcvSTATUS_OK;
+
+OnError:
+    /* Roll back. */
+    if (heap != gcvNULL)
+    {
+        /* Free the heap structure. */
+        gcmkVERIFY_OK(gckOS_FreeMemory(Os, heap));
+    }
+
+    /* Return the status. */
+    gcmkFOOTER();
+    return status;
+}
+
+/*******************************************************************************
+**
+**  gckHEAP_Destroy
+**
+**  Destroy a gckHEAP object.
+**
+**  INPUT:
+**
+**      gckHEAP Heap
+**          Pointer to a gckHEAP object to destroy.
+**
+**  OUTPUT:
+**
+**      Nothing.
+*/
+gceSTATUS
+gckHEAP_Destroy(
+    IN gckHEAP Heap
+    )
+{
+    gcskHEAP_PTR heap;
+#if gcmIS_DEBUG(gcdDEBUG_CODE)
+    gctSIZE_T leaked = 0;
+#endif
+
+    gcmkHEADER_ARG("Heap=0x%x", Heap);
+
+    for (heap = Heap->heap; heap != gcvNULL; heap = Heap->heap)
+    {
+        /* Unlink heap from linked list. */
+        Heap->heap = heap->next;
+
+#if gcmIS_DEBUG(gcdDEBUG_CODE)
+        /* Check for leaked memory. */
+        leaked += _DumpHeap(heap);
+#endif
+
+        /* Free the heap. */
+        gcmkVERIFY_OK(gckOS_FreeMemory(Heap->os, heap));
+    }
+
+    /* Free the mutex. */
+    gcmkVERIFY_OK(gckOS_DeleteMutex(Heap->os, Heap->mutex));
+
+    /* Free the heap structure. */
+    gcmkVERIFY_OK(gckOS_FreeMemory(Heap->os, Heap));
+
+    /* Success. */
+#if gcmIS_DEBUG(gcdDEBUG_CODE)
+    gcmkFOOTER_ARG("leaked=%lu", leaked);
+#else
+    gcmkFOOTER_NO();
+#endif
+    return gcvSTATUS_OK;
+}
+
+/*******************************************************************************
+**
+**  gckHEAP_Allocate
+**
+**  Allocate data from the heap.
+**
+**  INPUT:
+**
+**      gckHEAP Heap
+**          Pointer to a gckHEAP object.
+**
+**      IN gctSIZE_T Bytes
+**          Number of byte to allocate.
+**
+**  OUTPUT:
+**
+**      gctPOINTER * Memory
+**          Pointer to a variable that will hold the address of the allocated
+**          memory.
+*/
+gceSTATUS
+gckHEAP_Allocate(
+    IN gckHEAP Heap,
+    IN gctSIZE_T Bytes,
+    OUT gctPOINTER * Memory
+    )
+{
+    gctBOOL acquired = gcvFALSE;
+    gcskHEAP_PTR heap;
+    gceSTATUS status;
+    gctSIZE_T bytes;
+    gcskNODE_PTR node, used, prevFree = gcvNULL;
+    gctPOINTER memory = gcvNULL;
+
+    gcmkHEADER_ARG("Heap=0x%x Bytes=%lu", Heap, Bytes);
+
+    /* Verify the arguments. */
+    gcmkVERIFY_OBJECT(Heap, gcvOBJ_HEAP);
+    gcmkVERIFY_ARGUMENT(Bytes > 0);
+    gcmkVERIFY_ARGUMENT(Memory != gcvNULL);
+
+    /* Determine number of bytes required for a node. */
+    bytes = gcmALIGN(Bytes + gcmSIZEOF(gcskNODE), 8);
+
+    /* Acquire the mutex. */
+    gcmkONERROR(
+        gckOS_AcquireMutex(Heap->os, Heap->mutex, gcvINFINITE));
+
+    acquired = gcvTRUE;
+
+    /* Check if this allocation is bigger than the default allocation size. */
+    if (bytes > Heap->allocationSize - gcmSIZEOF(gcskHEAP) - gcmSIZEOF(gcskNODE))
+    {
+        /* Adjust allocation size. */
+        Heap->allocationSize = bytes * 2;
+    }
+
+    else if (Heap->heap != gcvNULL)
+    {
+        gctINT i;
+
+        /* 2 retries, since we might need to compact. */
+        for (i = 0; i < 2; ++i)
+        {
+            /* Walk all the heaps. */
+            for (heap = Heap->heap; heap != gcvNULL; heap = heap->next)
+            {
+                /* Check if this heap has enough bytes to hold the request. */
+                if (bytes <= heap->size - gcmSIZEOF(gcskNODE))
+                {
+                    prevFree = gcvNULL;
+
+                    /* Walk the chain of free nodes. */
+                    for (node = heap->freeList;
+                         node != gcvNULL;
+                         node = node->next
+                    )
+                    {
+                        gcmkASSERT(node->next != gcdIN_USE);
+
+                        /* Check if this free node has enough bytes. */
+                        if (node->bytes >= bytes)
+                        {
+                            /* Use the node. */
+                            goto UseNode;
+                        }
+
+                        /* Save current free node for linked list management. */
+                        prevFree = node;
+                    }
+                }
+            }
+
+            if (i == 0)
+            {
+                /* Compact the heap. */
+                gcmkVERIFY_OK(_CompactKernelHeap(Heap));
+
+#if gcmIS_DEBUG(gcdDEBUG_CODE)
+                gcmkTRACE_ZONE(gcvLEVEL_VERBOSE, gcvZONE_HEAP,
+                               "===== KERNEL HEAP =====");
+                gcmkTRACE_ZONE(gcvLEVEL_VERBOSE, gcvZONE_HEAP,
+                               "Number of allocations           : %12u",
+                               Heap->allocCount);
+                gcmkTRACE_ZONE(gcvLEVEL_VERBOSE, gcvZONE_HEAP,
+                               "Number of bytes allocated       : %12llu",
+                               Heap->allocBytes);
+                gcmkTRACE_ZONE(gcvLEVEL_VERBOSE, gcvZONE_HEAP,
+                               "Maximum allocation size         : %12llu",
+                               Heap->allocBytesMax);
+                gcmkTRACE_ZONE(gcvLEVEL_VERBOSE, gcvZONE_HEAP,
+                               "Total number of bytes allocated : %12llu",
+                               Heap->allocBytesTotal);
+                gcmkTRACE_ZONE(gcvLEVEL_VERBOSE, gcvZONE_HEAP,
+                               "Number of heaps                 : %12u",
+                               Heap->heapCount);
+                gcmkTRACE_ZONE(gcvLEVEL_VERBOSE, gcvZONE_HEAP,
+                               "Heap memory in bytes            : %12llu",
+                               Heap->heapMemory);
+                gcmkTRACE_ZONE(gcvLEVEL_VERBOSE, gcvZONE_HEAP,
+                               "Maximum number of heaps         : %12u",
+                               Heap->heapCountMax);
+                gcmkTRACE_ZONE(gcvLEVEL_VERBOSE, gcvZONE_HEAP,
+                               "Maximum heap memory in bytes    : %12llu",
+                               Heap->heapMemoryMax);
+#endif
+            }
+        }
+    }
+
+    /* Release the mutex. */
+    gcmkONERROR(
+        gckOS_ReleaseMutex(Heap->os, Heap->mutex));
+
+    acquired = gcvFALSE;
+
+    /* Allocate a new heap. */
+    gcmkONERROR(
+        gckOS_AllocateMemory(Heap->os,
+                             Heap->allocationSize,
+                             &memory));
+
+    gcmkTRACE_ZONE(gcvLEVEL_INFO, gcvZONE_HEAP,
+                   "Allocated heap 0x%x (%lu bytes)",
+                   memory, Heap->allocationSize);
+
+    /* Acquire the mutex. */
+    gcmkONERROR(
+        gckOS_AcquireMutex(Heap->os, Heap->mutex, gcvINFINITE));
+
+    acquired = gcvTRUE;
+
+    /* Use the allocated memory as the heap. */
+    heap = (gcskHEAP_PTR) memory;
+
+    /* Insert this heap to the head of the chain. */
+    heap->next = Heap->heap;
+    heap->prev = gcvNULL;
+    heap->size = Heap->allocationSize - gcmSIZEOF(gcskHEAP);
+
+    if (heap->next != gcvNULL)
+    {
+        heap->next->prev = heap;
+    }
+    Heap->heap = heap;
+
+    /* Mark the end of the heap. */
+    node = (gcskNODE_PTR) ( (gctUINT8_PTR) heap
+                          + Heap->allocationSize
+                          - gcmSIZEOF(gcskNODE)
+                          );
+    node->bytes = 0;
+    node->next  = gcvNULL;
+
+    /* Create a free list. */
+    node           = (gcskNODE_PTR) (heap + 1);
+    heap->freeList = node;
+
+    /* Initialize the free list. */
+    node->bytes = heap->size - gcmSIZEOF(gcskNODE);
+    node->next  = gcvNULL;
+
+    /* No previous free. */
+    prevFree = gcvNULL;
+
+#if VIVANTE_PROFILER || gcmIS_DEBUG(gcdDEBUG_CODE)
+    /* Update profiling. */
+    Heap->heapCount  += 1;
+    Heap->heapMemory += Heap->allocationSize;
+
+    if (Heap->heapCount > Heap->heapCountMax)
+    {
+        Heap->heapCountMax = Heap->heapCount;
+    }
+    if (Heap->heapMemory > Heap->heapMemoryMax)
+    {
+        Heap->heapMemoryMax = Heap->heapMemory;
+    }
+#endif
+
+UseNode:
+    /* Verify some stuff. */
+    gcmkASSERT(heap != gcvNULL);
+    gcmkASSERT(node != gcvNULL);
+    gcmkASSERT(node->bytes >= bytes);
+
+    if (heap->prev != gcvNULL)
+    {
+        /* Unlink the heap from the linked list. */
+        heap->prev->next = heap->next;
+        if (heap->next != gcvNULL)
+        {
+            heap->next->prev = heap->prev;
+        }
+
+        /* Move the heap to the front of the list. */
+        heap->next       = Heap->heap;
+        heap->prev       = gcvNULL;
+        Heap->heap       = heap;
+        heap->next->prev = heap;
+    }
+
+    /* Check if there is enough free space left after usage for another free
+    ** node. */
+    if (node->bytes - bytes >= gcmSIZEOF(gcskNODE))
+    {
+        /* Allocated used space from the back of the free list. */
+        used = (gcskNODE_PTR) ((gctUINT8_PTR) node + node->bytes - bytes);
+
+        /* Adjust the number of free bytes. */
+        node->bytes -= bytes;
+        gcmkASSERT(node->bytes >= gcmSIZEOF(gcskNODE));
+    }
+    else
+    {
+        /* Remove this free list from the chain. */
+        if (prevFree == gcvNULL)
+        {
+            heap->freeList = node->next;
+        }
+        else
+        {
+            prevFree->next = node->next;
+        }
+
+        /* Consume the entire free node. */
+        used  = (gcskNODE_PTR) node;
+        bytes = node->bytes;
+    }
+
+    /* Mark node as used. */
+    used->bytes     = bytes;
+    used->next      = gcdIN_USE;
+#if gcmIS_DEBUG(gcdDEBUG_CODE)
+    used->timeStamp = ++Heap->timeStamp;
+#endif
+
+#if VIVANTE_PROFILER || gcmIS_DEBUG(gcdDEBUG_CODE)
+    /* Update profile counters. */
+    Heap->allocCount      += 1;
+    Heap->allocBytes      += bytes;
+    Heap->allocBytesMax    = gcmMAX(Heap->allocBytes, Heap->allocBytesMax);
+    Heap->allocBytesTotal += bytes;
+#endif
+
+    /* Release the mutex. */
+    gcmkVERIFY_OK(
+        gckOS_ReleaseMutex(Heap->os, Heap->mutex));
+
+    /* Return pointer to memory. */
+    *Memory = used + 1;
+
+    /* Success. */
+    gcmkFOOTER_ARG("*Memory=0x%x", *Memory);
+    return gcvSTATUS_OK;
+
+OnError:
+    if (acquired)
+    {
+        /* Release the mutex. */
+        gcmkVERIFY_OK(
+            gckOS_ReleaseMutex(Heap->os, Heap->mutex));
+    }
+
+    if (memory != gcvNULL)
+    {
+        /* Free the heap memory. */
+        gckOS_FreeMemory(Heap->os, memory);
+    }
+
+    /* Return the status. */
+    gcmkFOOTER();
+    return status;
+}
+
+/*******************************************************************************
+**
+**  gckHEAP_Free
+**
+**  Free allocated memory from the heap.
+**
+**  INPUT:
+**
+**      gckHEAP Heap
+**          Pointer to a gckHEAP object.
+**
+**      IN gctPOINTER Memory
+**          Pointer to memory to free.
+**
+**  OUTPUT:
+**
+**      NOTHING.
+*/
+gceSTATUS
+gckHEAP_Free(
+    IN gckHEAP Heap,
+    IN gctPOINTER Memory
+    )
+{
+    gcskNODE_PTR node;
+    gceSTATUS status;
+
+    gcmkHEADER_ARG("Heap=0x%x Memory=0x%x", Heap, Memory);
+
+    /* Verify the arguments. */
+    gcmkVERIFY_OBJECT(Heap, gcvOBJ_HEAP);
+    gcmkVERIFY_ARGUMENT(Memory != gcvNULL);
+
+    /* Acquire the mutex. */
+    gcmkONERROR(
+        gckOS_AcquireMutex(Heap->os, Heap->mutex, gcvINFINITE));
+
+    /* Pointer to structure. */
+    node = (gcskNODE_PTR) Memory - 1;
+
+    /* Mark the node as freed. */
+    node->next = gcvNULL;
+
+#if VIVANTE_PROFILER || gcmIS_DEBUG(gcdDEBUG_CODE)
+    /* Update profile counters. */
+    Heap->allocBytes -= node->bytes;
+#endif
+
+    /* Release the mutex. */
+    gcmkVERIFY_OK(
+        gckOS_ReleaseMutex(Heap->os, Heap->mutex));
+
+    /* Success. */
+    gcmkFOOTER_NO();
+    return gcvSTATUS_OK;
+
+OnError:
+    /* Return the status. */
+    gcmkFOOTER();
+    return status;
+}
+
+#if VIVANTE_PROFILER
+gceSTATUS
+gckHEAP_ProfileStart(
+    IN gckHEAP Heap
+    )
+{
+    gcmkHEADER_ARG("Heap=0x%x", Heap);
+
+    /* Verify the arguments. */
+    gcmkVERIFY_OBJECT(Heap, gcvOBJ_HEAP);
+
+    /* Zero the counters. */
+    Heap->allocCount      = 0;
+    Heap->allocBytes      = 0;
+    Heap->allocBytesMax   = 0;
+    Heap->allocBytesTotal = 0;
+    Heap->heapCount       = 0;
+    Heap->heapCountMax    = 0;
+    Heap->heapMemory      = 0;
+    Heap->heapMemoryMax   = 0;
+
+    /* Success. */
+    gcmkFOOTER_NO();
+    return gcvSTATUS_OK;
+}
+
+gceSTATUS
+gckHEAP_ProfileEnd(
+    IN gckHEAP Heap,
+    IN gctCONST_STRING Title
+    )
+{
+    gcmkHEADER_ARG("Heap=0x%x Title=0x%x", Heap, Title);
+
+    /* Verify the arguments. */
+    gcmkVERIFY_OBJECT(Heap, gcvOBJ_HEAP);
+    gcmkVERIFY_ARGUMENT(Title != gcvNULL);
+
+    gcmkPRINT("");
+    gcmkPRINT("=====[ HEAP - %s ]=====", Title);
+    gcmkPRINT("Number of allocations           : %12u",   Heap->allocCount);
+    gcmkPRINT("Number of bytes allocated       : %12llu", Heap->allocBytes);
+    gcmkPRINT("Maximum allocation size         : %12llu", Heap->allocBytesMax);
+    gcmkPRINT("Total number of bytes allocated : %12llu", Heap->allocBytesTotal);
+    gcmkPRINT("Number of heaps                 : %12u",   Heap->heapCount);
+    gcmkPRINT("Heap memory in bytes            : %12llu", Heap->heapMemory);
+    gcmkPRINT("Maximum number of heaps         : %12u",   Heap->heapCountMax);
+    gcmkPRINT("Maximum heap memory in bytes    : %12llu", Heap->heapMemoryMax);
+    gcmkPRINT("==============================================");
+
+    /* Success. */
+    gcmkFOOTER_NO();
+    return gcvSTATUS_OK;
+}
+#endif /* VIVANTE_PROFILER */
+
+/*******************************************************************************
+***** Test Code ****************************************************************
+*******************************************************************************/
+
diff --git a/src/hal/kernel/gc_hal_kernel_mmu.c b/src/hal/kernel/gc_hal_kernel_mmu.c
new file mode 100755
index 0000000..b6baf0a
--- /dev/null
+++ b/src/hal/kernel/gc_hal_kernel_mmu.c
@@ -0,0 +1,2315 @@
+/****************************************************************************
+*
+*    The MIT License (MIT)
+*
+*    Copyright (c) 2014 Vivante Corporation
+*
+*    Permission is hereby granted, free of charge, to any person obtaining a
+*    copy of this software and associated documentation files (the "Software"),
+*    to deal in the Software without restriction, including without limitation
+*    the rights to use, copy, modify, merge, publish, distribute, sublicense,
+*    and/or sell copies of the Software, and to permit persons to whom the
+*    Software is furnished to do so, subject to the following conditions:
+*
+*    The above copyright notice and this permission notice shall be included in
+*    all copies or substantial portions of the Software.
+*
+*    THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+*    IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+*    FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+*    AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+*    LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+*    FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+*    DEALINGS IN THE SOFTWARE.
+*
+*****************************************************************************
+*
+*    The GPL License (GPL)
+*
+*    Copyright (C) 2014  Vivante Corporation
+*
+*    This program is free software; you can redistribute it and/or
+*    modify it under the terms of the GNU General Public License
+*    as published by the Free Software Foundation; either version 2
+*    of the License, or (at your option) any later version.
+*
+*    This program is distributed in the hope that it will be useful,
+*    but WITHOUT ANY WARRANTY; without even the implied warranty of
+*    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+*    GNU General Public License for more details.
+*
+*    You should have received a copy of the GNU General Public License
+*    along with this program; if not, write to the Free Software Foundation,
+*    Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+*
+*****************************************************************************
+*
+*    Note: This software is released under dual MIT and GPL licenses. A
+*    recipient may use this file under the terms of either the MIT license or
+*    GPL License. If you wish to use only one license not the other, you can
+*    indicate your decision by deleting one of the above license notices in your
+*    version of this file.
+*
+*****************************************************************************/
+
+
+#include "gc_hal_kernel_precomp.h"
+
+#define _GC_OBJ_ZONE    gcvZONE_MMU
+
+typedef enum _gceMMU_TYPE
+{
+    gcvMMU_USED     = (0 << 4),
+    gcvMMU_SINGLE   = (1 << 4),
+    gcvMMU_FREE     = (2 << 4),
+}
+gceMMU_TYPE;
+
+#define gcmENTRY_TYPE(x) (x & 0xF0)
+
+#define gcdMMU_TABLE_DUMP       0
+
+#define gcdUSE_MMU_EXCEPTION    0
+
+/*
+    gcdMMU_CLEAR_VALUE
+
+        The clear value for the entry of the old MMU.
+*/
+#ifndef gcdMMU_CLEAR_VALUE
+#   define gcdMMU_CLEAR_VALUE                   0x00000ABC
+#endif
+
+#define gcdVERTEX_START      (128 << 10)
+
+typedef struct _gcsMMU_STLB *gcsMMU_STLB_PTR;
+
+typedef struct _gcsMMU_STLB
+{
+    gctPHYS_ADDR    physical;
+    gctUINT32_PTR   logical;
+    gctSIZE_T       size;
+    gctUINT32       physBase;
+    gctSIZE_T       pageCount;
+    gctUINT32       mtlbIndex;
+    gctUINT32       mtlbEntryNum;
+    gcsMMU_STLB_PTR next;
+} gcsMMU_STLB;
+
+#if gcdSHARED_PAGETABLE
+typedef struct _gcsSharedPageTable * gcsSharedPageTable_PTR;
+typedef struct _gcsSharedPageTable
+{
+    /* Shared gckMMU object. */
+    gckMMU          mmu;
+
+    /* Hardwares which use this shared pagetable. */
+    gckHARDWARE     hardwares[gcdMAX_GPU_COUNT];
+
+    /* Number of cores use this shared pagetable. */
+    gctUINT32       reference;
+}
+gcsSharedPageTable;
+
+static gcsSharedPageTable_PTR sharedPageTable = gcvNULL;
+#endif
+
+#if gcdMIRROR_PAGETABLE
+typedef struct _gcsMirrorPageTable * gcsMirrorPageTable_PTR;
+typedef struct _gcsMirrorPageTable
+{
+    /* gckMMU objects. */
+    gckMMU          mmus[gcdMAX_GPU_COUNT];
+
+    /* Hardwares which use this shared pagetable. */
+    gckHARDWARE     hardwares[gcdMAX_GPU_COUNT];
+
+    /* Number of cores use this shared pagetable. */
+    gctUINT32       reference;
+}
+gcsMirrorPageTable;
+
+static gcsMirrorPageTable_PTR mirrorPageTable = gcvNULL;
+static gctPOINTER mirrorPageTableMutex = gcvNULL;
+#endif
+
+typedef struct _gcsDynamicSpaceNode * gcsDynamicSpaceNode_PTR;
+typedef struct _gcsDynamicSpaceNode
+{
+    gctUINT32       start;
+    gctINT32        entries;
+}
+gcsDynamicSpaceNode;
+
+static void
+_WritePageEntry(
+    IN gctUINT32_PTR PageEntry,
+    IN gctUINT32     EntryValue
+    )
+{
+    static gctUINT16 data = 0xff00;
+
+    if (*(gctUINT8 *)&data == 0xff)
+    {
+        *PageEntry = gcmSWAB32(EntryValue);
+    }
+    else
+    {
+        *PageEntry = EntryValue;
+    }
+}
+
+static gctUINT32
+_ReadPageEntry(
+    IN gctUINT32_PTR PageEntry
+    )
+{
+    static gctUINT16 data = 0xff00;
+    gctUINT32 entryValue;
+
+    if (*(gctUINT8 *)&data == 0xff)
+    {
+        entryValue = *PageEntry;
+        return gcmSWAB32(entryValue);
+    }
+    else
+    {
+        return *PageEntry;
+    }
+}
+
+static gceSTATUS
+_FillPageTable(
+    IN gctUINT32_PTR PageTable,
+    IN gctUINT32     PageCount,
+    IN gctUINT32     EntryValue
+)
+{
+    gctUINT i;
+
+    for (i = 0; i < PageCount; i++)
+    {
+        _WritePageEntry(PageTable + i, EntryValue);
+    }
+
+    return gcvSTATUS_OK;
+}
+
+static gceSTATUS
+_Link(
+    IN gckMMU Mmu,
+    IN gctUINT32 Index,
+    IN gctUINT32 Next
+    )
+{
+    if (Index >= Mmu->pageTableEntries)
+    {
+        /* Just move heap pointer. */
+        Mmu->heapList = Next;
+    }
+    else
+    {
+        /* Address page table. */
+        gctUINT32_PTR map = Mmu->mapLogical;
+
+        /* Dispatch on node type. */
+        switch (gcmENTRY_TYPE(_ReadPageEntry(&map[Index])))
+        {
+        case gcvMMU_SINGLE:
+            /* Set single index. */
+            _WritePageEntry(&map[Index], (Next << 8) | gcvMMU_SINGLE);
+            break;
+
+        case gcvMMU_FREE:
+            /* Set index. */
+            _WritePageEntry(&map[Index + 1], Next);
+            break;
+
+        default:
+            gcmkFATAL("MMU table correcupted at index %u!", Index);
+            return gcvSTATUS_HEAP_CORRUPTED;
+        }
+    }
+
+    /* Success. */
+    return gcvSTATUS_OK;
+}
+
+static gceSTATUS
+_AddFree(
+    IN gckMMU Mmu,
+    IN gctUINT32 Index,
+    IN gctUINT32 Node,
+    IN gctUINT32 Count
+    )
+{
+    gctUINT32_PTR map = Mmu->mapLogical;
+
+    if (Count == 1)
+    {
+        /* Initialize a single page node. */
+        _WritePageEntry(map + Node, (~((1U<<8)-1)) | gcvMMU_SINGLE);
+    }
+    else
+    {
+        /* Initialize the node. */
+        _WritePageEntry(map + Node + 0, (Count << 8) | gcvMMU_FREE);
+        _WritePageEntry(map + Node + 1, ~0U);
+    }
+
+    /* Append the node. */
+    return _Link(Mmu, Index, Node);
+}
+
+static gceSTATUS
+_Collect(
+    IN gckMMU Mmu
+    )
+{
+    gctUINT32_PTR map = Mmu->mapLogical;
+    gceSTATUS status;
+    gctUINT32 i, previous, start = 0, count = 0;
+
+    previous = Mmu->heapList = ~0U;
+    Mmu->freeNodes = gcvFALSE;
+
+    /* Walk the entire page table. */
+    for (i = 0; i < Mmu->pageTableEntries; ++i)
+    {
+        /* Dispatch based on type of page. */
+        switch (gcmENTRY_TYPE(_ReadPageEntry(&map[i])))
+        {
+        case gcvMMU_USED:
+            /* Used page, so close any open node. */
+            if (count > 0)
+            {
+                /* Add the node. */
+                gcmkONERROR(_AddFree(Mmu, previous, start, count));
+
+                /* Reset the node. */
+                previous = start;
+                count    = 0;
+            }
+            break;
+
+        case gcvMMU_SINGLE:
+            /* Single free node. */
+            if (count++ == 0)
+            {
+                /* Start a new node. */
+                start = i;
+            }
+            break;
+
+        case gcvMMU_FREE:
+            /* A free node. */
+            if (count == 0)
+            {
+                /* Start a new node. */
+                start = i;
+            }
+
+            /* Advance the count. */
+            count += _ReadPageEntry(&map[i]) >> 8;
+
+            /* Advance the index into the page table. */
+            i     += (_ReadPageEntry(&map[i]) >> 8) - 1;
+            break;
+
+        default:
+            gcmkFATAL("MMU page table correcupted at index %u!", i);
+            return gcvSTATUS_HEAP_CORRUPTED;
+        }
+    }
+
+    /* See if we have an open node left. */
+    if (count > 0)
+    {
+        /* Add the node to the list. */
+        gcmkONERROR(_AddFree(Mmu, previous, start, count));
+    }
+
+    gcmkTRACE_ZONE(gcvLEVEL_INFO, gcvZONE_MMU,
+                   "Performed a garbage collection of the MMU heap.");
+
+    /* Success. */
+    return gcvSTATUS_OK;
+
+OnError:
+    /* Return the staus. */
+    return status;
+}
+
+static gctUINT32
+_SetPage(gctUINT32 PageAddress, gctUINT32 PageAddressExt)
+{
+    return PageAddress
+           /* AddressExt */
+           | (PageAddressExt << 4)
+           /* writable */
+           | (1 << 2)
+           /* Ignore exception */
+           | (0 << 1)
+           /* Present */
+           | (1 << 0);
+}
+
+#if gcdPROCESS_ADDRESS_SPACE
+gctUINT32
+_AddressToIndex(
+    IN gckMMU Mmu,
+    IN gctUINT32 Address
+    )
+{
+    gctUINT32 mtlbOffset = (Address & gcdMMU_MTLB_MASK) >> gcdMMU_MTLB_SHIFT;
+    gctUINT32 stlbOffset = (Address & gcdMMU_STLB_4K_MASK) >> gcdMMU_STLB_4K_SHIFT;
+
+    return (mtlbOffset - Mmu->dynamicMappingStart) * gcdMMU_STLB_4K_ENTRY_NUM + stlbOffset;
+}
+
+gctUINT32
+_MtlbOffset(
+    gctUINT32 Address
+    )
+{
+    return (Address & gcdMMU_MTLB_MASK) >> gcdMMU_MTLB_SHIFT;
+}
+
+gctUINT32
+_StlbOffset(
+    gctUINT32 Address
+    )
+{
+    return (Address & gcdMMU_STLB_4K_MASK) >> gcdMMU_STLB_4K_SHIFT;
+}
+
+static gceSTATUS
+_AllocateStlb(
+    IN gckOS Os,
+    OUT gcsMMU_STLB_PTR *Stlb
+    )
+{
+    gceSTATUS status;
+    gcsMMU_STLB_PTR stlb;
+    gctPOINTER pointer;
+
+    /* Allocate slave TLB record. */
+    gcmkONERROR(gckOS_Allocate(Os, gcmSIZEOF(gcsMMU_STLB), &pointer));
+    stlb = pointer;
+
+    stlb->size = gcdMMU_STLB_4K_SIZE;
+
+    /* Allocate slave TLB entries. */
+    gcmkONERROR(gckOS_AllocateContiguous(
+        Os,
+        gcvFALSE,
+        &stlb->size,
+        &stlb->physical,
+        (gctPOINTER)&stlb->logical
+        ));
+
+    gcmkONERROR(gckOS_GetPhysicalAddress(Os, stlb->logical, &stlb->physBase));
+
+#if gcdUSE_MMU_EXCEPTION
+    _FillPageTable(stlb->logical, stlb->size / 4, gcdMMU_STLB_EXCEPTION);
+#else
+    gckOS_ZeroMemory(stlb->logical, stlb->size);
+#endif
+
+    *Stlb = stlb;
+
+    return gcvSTATUS_OK;
+
+OnError:
+    return status;
+}
+
+gceSTATUS
+_SetupProcessAddressSpace(
+    IN gckMMU Mmu
+    )
+{
+    gceSTATUS status;
+    gctINT numEntries = 0;
+    gctUINT32_PTR map;
+
+    numEntries = gcdPROCESS_ADDRESS_SPACE_SIZE
+               /* Address space mapped by one MTLB entry. */
+               / (1 << gcdMMU_MTLB_SHIFT);
+
+    Mmu->dynamicMappingStart = 0;
+
+    Mmu->pageTableSize = numEntries * 4096;
+
+    Mmu->pageTableEntries = Mmu->pageTableSize / gcmSIZEOF(gctUINT32);
+
+    gcmkONERROR(gckOS_Allocate(Mmu->os,
+                               Mmu->pageTableSize,
+                               (void **)&Mmu->mapLogical));
+
+    /* Initilization. */
+    map      = Mmu->mapLogical;
+    _WritePageEntry(map,     (Mmu->pageTableEntries << 8) | gcvMMU_FREE);
+    _WritePageEntry(map + 1, ~0U);
+    Mmu->heapList  = 0;
+    Mmu->freeNodes = gcvFALSE;
+
+    return gcvSTATUS_OK;
+
+OnError:
+    return status;
+}
+#else
+static gceSTATUS
+_FillFlatMapping(
+    IN gckMMU Mmu,
+    IN gctUINT32 PhysBase,
+    OUT gctSIZE_T Size
+    )
+{
+    gceSTATUS status;
+    gctBOOL mutex = gcvFALSE;
+    gcsMMU_STLB_PTR head = gcvNULL, pre = gcvNULL;
+    gctUINT32 start = PhysBase & (~gcdMMU_PAGE_64K_MASK);
+    gctUINT32 end = (PhysBase + Size - 1) & (~gcdMMU_PAGE_64K_MASK);
+    gctUINT32 mStart = start >> gcdMMU_MTLB_SHIFT;
+    gctUINT32 mEnd = end >> gcdMMU_MTLB_SHIFT;
+    gctUINT32 sStart = (start & gcdMMU_STLB_64K_MASK) >> gcdMMU_STLB_64K_SHIFT;
+    gctUINT32 sEnd = (end & gcdMMU_STLB_64K_MASK) >> gcdMMU_STLB_64K_SHIFT;
+    gctBOOL ace = gckHARDWARE_IsFeatureAvailable(Mmu->hardware, gcvFEATURE_ACE);
+    gctPHYS_ADDR_T physical;
+
+    /* Grab the mutex. */
+    gcmkONERROR(gckOS_AcquireMutex(Mmu->os, Mmu->pageTableMutex, gcvINFINITE));
+    mutex = gcvTRUE;
+
+    while (mStart <= mEnd)
+    {
+        gcmkASSERT(mStart < gcdMMU_MTLB_ENTRY_NUM);
+        if (*(Mmu->mtlbLogical + mStart) == 0)
+        {
+            gcsMMU_STLB_PTR stlb;
+            gctPOINTER pointer = gcvNULL;
+            gctUINT32 last = (mStart == mEnd) ? sEnd : (gcdMMU_STLB_64K_ENTRY_NUM - 1);
+            gctUINT32 mtlbEntry;
+
+            gcmkONERROR(gckOS_Allocate(Mmu->os, sizeof(struct _gcsMMU_STLB), &pointer));
+            stlb = pointer;
+
+            stlb->mtlbEntryNum = 0;
+            stlb->next = gcvNULL;
+            stlb->physical = gcvNULL;
+            stlb->logical = gcvNULL;
+            stlb->size = gcdMMU_STLB_64K_SIZE;
+            stlb->pageCount = 0;
+
+            if (pre == gcvNULL)
+            {
+                pre = head = stlb;
+            }
+            else
+            {
+                gcmkASSERT(pre->next == gcvNULL);
+                pre->next = stlb;
+                pre = stlb;
+            }
+
+            gcmkONERROR(
+                    gckOS_AllocateContiguous(Mmu->os,
+                                             gcvFALSE,
+                                             &stlb->size,
+                                             &stlb->physical,
+                                             (gctPOINTER)&stlb->logical));
+
+            gcmkONERROR(gckOS_ZeroMemory(stlb->logical, stlb->size));
+
+            gcmkONERROR(gckOS_GetPhysicalAddress(
+                Mmu->os,
+                stlb->logical,
+                &physical));
+
+            gcmkSAFECASTPHYSADDRT(stlb->physBase, physical);
+
+            if (stlb->physBase & (gcdMMU_STLB_64K_SIZE - 1))
+            {
+                gcmkONERROR(gcvSTATUS_NOT_ALIGNED);
+            }
+
+            mtlbEntry = stlb->physBase
+                      /* 64KB page size */
+                      | (1 << 2)
+                      /* Ignore exception */
+                      | (0 << 1)
+                      /* Present */
+                      | (1 << 0);
+
+            if (ace)
+            {
+                mtlbEntry = mtlbEntry
+                          /* Secure */
+                          | (1 << 4);
+            }
+
+            _WritePageEntry(Mmu->mtlbLogical + mStart, mtlbEntry);
+
+#if gcdMMU_TABLE_DUMP
+            gckOS_Print("%s(%d): insert MTLB[%d]: %08x\n",
+                __FUNCTION__, __LINE__,
+                mStart,
+                _ReadPageEntry(Mmu->mtlbLogical + mStart));
+#endif
+
+            stlb->mtlbIndex = mStart;
+            stlb->mtlbEntryNum = 1;
+#if gcdMMU_TABLE_DUMP
+            gckOS_Print("%s(%d): STLB: logical:%08x -> physical:%08x\n",
+                    __FUNCTION__, __LINE__,
+                    stlb->logical,
+                    stlb->physBase);
+#endif
+
+            while (sStart <= last)
+            {
+                gcmkASSERT(!(start & gcdMMU_PAGE_64K_MASK));
+                _WritePageEntry(stlb->logical + sStart, _SetPage(start, 0));
+#if gcdMMU_TABLE_DUMP
+                gckOS_Print("%s(%d): insert STLB[%d]: %08x\n",
+                    __FUNCTION__, __LINE__,
+                    sStart,
+                    _ReadPageEntry(stlb->logical + sStart));
+#endif
+                /* next page. */
+                start += gcdMMU_PAGE_64K_SIZE;
+                sStart++;
+                stlb->pageCount++;
+            }
+
+            sStart = 0;
+            ++mStart;
+        }
+        else
+        {
+            gcmkONERROR(gcvSTATUS_INVALID_REQUEST);
+        }
+    }
+
+    /* Insert the stlb into staticSTLB. */
+    if (Mmu->staticSTLB == gcvNULL)
+    {
+        Mmu->staticSTLB = head;
+    }
+    else
+    {
+        gcmkASSERT(pre == gcvNULL);
+        gcmkASSERT(pre->next == gcvNULL);
+        pre->next = Mmu->staticSTLB;
+        Mmu->staticSTLB = head;
+    }
+
+    /* Release the mutex. */
+    gcmkVERIFY_OK(gckOS_ReleaseMutex(Mmu->os, Mmu->pageTableMutex));
+
+    return gcvSTATUS_OK;
+
+OnError:
+
+    /* Roll back. */
+    while (head != gcvNULL)
+    {
+        pre = head;
+        head = head->next;
+
+        if (pre->physical != gcvNULL)
+        {
+            gcmkVERIFY_OK(
+                gckOS_FreeContiguous(Mmu->os,
+                    pre->physical,
+                    pre->logical,
+                    pre->size));
+        }
+
+        if (pre->mtlbEntryNum != 0)
+        {
+            gcmkASSERT(pre->mtlbEntryNum == 1);
+            _WritePageEntry(Mmu->mtlbLogical + pre->mtlbIndex, 0);
+        }
+
+        gcmkVERIFY_OK(gcmkOS_SAFE_FREE(Mmu->os, pre));
+    }
+
+    if (mutex)
+    {
+        /* Release the mutex. */
+        gcmkVERIFY_OK(gckOS_ReleaseMutex(Mmu->os, Mmu->pageTableMutex));
+    }
+
+    return status;
+}
+
+static gceSTATUS
+_FindDynamicSpace(
+    IN gckMMU Mmu,
+    OUT gcsDynamicSpaceNode_PTR *Array,
+    OUT gctINT * Size
+    )
+{
+    gceSTATUS status = gcvSTATUS_OK;
+    gctPOINTER pointer = gcvNULL;
+    gcsDynamicSpaceNode_PTR array = gcvNULL;
+    gctINT size = 0;
+    gctINT i = 0, nodeStart = -1, nodeEntries = 0;
+
+    /* Allocate memory for the array. */
+    gcmkONERROR(gckOS_Allocate(Mmu->os,
+                               gcmSIZEOF(*array) * (gcdMMU_MTLB_ENTRY_NUM / 2),
+                               &pointer));
+
+    array = (gcsDynamicSpaceNode_PTR)pointer;
+
+    /* Loop all the entries. */
+    while (i < gcdMMU_MTLB_ENTRY_NUM)
+    {
+        if (!Mmu->mtlbLogical[i])
+        {
+            if (nodeStart < 0)
+            {
+                /* This is the first entry of the dynamic space. */
+                nodeStart   = i;
+                nodeEntries = 1;
+            }
+            else
+            {
+                /* Other entries of the dynamic space. */
+                nodeEntries++;
+            }
+        }
+        else if (nodeStart >= 0)
+        {
+            /* Save the previous node. */
+            array[size].start   = nodeStart;
+            array[size].entries = nodeEntries;
+            size++;
+
+            /* Reset the start. */
+            nodeStart   = -1;
+            nodeEntries = 0;
+        }
+
+        i++;
+    }
+
+    /* Save the previous node. */
+    if (nodeStart >= 0)
+    {
+        array[size].start   = nodeStart;
+        array[size].entries = nodeEntries;
+        size++;
+    }
+
+#if gcdMMU_TABLE_DUMP
+    for (i = 0; i < size; i++)
+    {
+        gckOS_Print("%s(%d): [%d]: start=%d, entries=%d.\n",
+                __FUNCTION__, __LINE__,
+                i,
+                array[i].start,
+                array[i].entries);
+    }
+#endif
+
+    *Array = array;
+    *Size  = size;
+
+    return gcvSTATUS_OK;
+
+OnError:
+    if (pointer != gcvNULL)
+    {
+        gckOS_Free(Mmu->os, pointer);
+    }
+
+    return status;
+}
+
+static gceSTATUS
+_SetupDynamicSpace(
+    IN gckMMU Mmu
+    )
+{
+    gceSTATUS status;
+    gcsDynamicSpaceNode_PTR nodeArray = gcvNULL;
+    gctINT i, nodeArraySize = 0;
+    gctPHYS_ADDR_T physical;
+    gctUINT32 address;
+    gctINT numEntries = 0;
+    gctUINT32_PTR map;
+    gctBOOL acquired = gcvFALSE;
+    gctUINT32 mtlbEntry;
+    gctBOOL ace = gckHARDWARE_IsFeatureAvailable(Mmu->hardware, gcvFEATURE_ACE);
+
+    /* Find all the dynamic address space. */
+    gcmkONERROR(_FindDynamicSpace(Mmu, &nodeArray, &nodeArraySize));
+
+    /* TODO: We only use the largest one for now. */
+    for (i = 0; i < nodeArraySize; i++)
+    {
+        if (nodeArray[i].entries > numEntries)
+        {
+            Mmu->dynamicMappingStart = nodeArray[i].start;
+            numEntries               = nodeArray[i].entries;
+        }
+    }
+
+    gckOS_Free(Mmu->os, (gctPOINTER)nodeArray);
+
+    Mmu->pageTableSize = numEntries * 4096;
+
+    gcmkSAFECASTSIZET(Mmu->pageTableEntries, Mmu->pageTableSize / gcmSIZEOF(gctUINT32));
+
+    gcmkONERROR(gckOS_Allocate(Mmu->os,
+                               Mmu->pageTableSize,
+                               (void **)&Mmu->mapLogical));
+
+    /* Construct Slave TLB. */
+    gcmkONERROR(gckOS_AllocateContiguous(Mmu->os,
+                gcvFALSE,
+                &Mmu->pageTableSize,
+                &Mmu->pageTablePhysical,
+                (gctPOINTER)&Mmu->pageTableLogical));
+
+#if gcdUSE_MMU_EXCEPTION
+    gcmkONERROR(_FillPageTable(Mmu->pageTableLogical,
+                               Mmu->pageTableEntries,
+                               /* Enable exception */
+                               1 << 1));
+#else
+    /* Invalidate all entries. */
+    gcmkONERROR(gckOS_ZeroMemory(Mmu->pageTableLogical,
+                Mmu->pageTableSize));
+#endif
+
+    /* Initilization. */
+    map      = Mmu->mapLogical;
+    _WritePageEntry(map,     (Mmu->pageTableEntries << 8) | gcvMMU_FREE);
+    _WritePageEntry(map + 1, ~0U);
+    Mmu->heapList  = 0;
+    Mmu->freeNodes = gcvFALSE;
+
+    gcmkONERROR(gckOS_GetPhysicalAddress(Mmu->os,
+                Mmu->pageTableLogical,
+                &physical));
+
+    gcmkSAFECASTPHYSADDRT(address, physical);
+
+    /* Grab the mutex. */
+    gcmkONERROR(gckOS_AcquireMutex(Mmu->os, Mmu->pageTableMutex, gcvINFINITE));
+    acquired = gcvTRUE;
+
+    /* Map to Master TLB. */
+    for (i = (gctINT)Mmu->dynamicMappingStart;
+         i < (gctINT)Mmu->dynamicMappingStart + numEntries;
+         i++)
+    {
+        mtlbEntry = address
+                  /* 4KB page size */
+                  | (0 << 2)
+                  /* Ignore exception */
+                  | (0 << 1)
+                  /* Present */
+                  | (1 << 0);
+
+        if (ace)
+        {
+            mtlbEntry = mtlbEntry
+                      /* Secure */
+                      | (1 << 4);
+        }
+
+        _WritePageEntry(Mmu->mtlbLogical + i, mtlbEntry);
+
+#if gcdMMU_TABLE_DUMP
+        gckOS_Print("%s(%d): insert MTLB[%d]: %08x\n",
+                __FUNCTION__, __LINE__,
+                i,
+                _ReadPageEntry(Mmu->mtlbLogical + i));
+#endif
+        address += gcdMMU_STLB_4K_SIZE;
+    }
+
+    /* Release the mutex. */
+    gcmkVERIFY_OK(gckOS_ReleaseMutex(Mmu->os, Mmu->pageTableMutex));
+
+    return gcvSTATUS_OK;
+
+OnError:
+    if (Mmu->mapLogical)
+    {
+        gcmkVERIFY_OK(
+            gckOS_Free(Mmu->os, (gctPOINTER) Mmu->mapLogical));
+
+
+        gcmkVERIFY_OK(
+            gckOS_FreeContiguous(Mmu->os,
+                                 Mmu->pageTablePhysical,
+                                 (gctPOINTER) Mmu->pageTableLogical,
+                                 Mmu->pageTableSize));
+    }
+
+    if (acquired)
+    {
+        /* Release the mutex. */
+        gcmkVERIFY_OK(gckOS_ReleaseMutex(Mmu->os, Mmu->pageTableMutex));
+    }
+
+    return status;
+}
+#endif
+
+/*******************************************************************************
+**
+**  _Construct
+**
+**  Construct a new gckMMU object.
+**
+**  INPUT:
+**
+**      gckKERNEL Kernel
+**          Pointer to an gckKERNEL object.
+**
+**      gctSIZE_T MmuSize
+**          Number of bytes for the page table.
+**
+**  OUTPUT:
+**
+**      gckMMU * Mmu
+**          Pointer to a variable that receives the gckMMU object pointer.
+*/
+gceSTATUS
+_Construct(
+    IN gckKERNEL Kernel,
+    IN gctSIZE_T MmuSize,
+    OUT gckMMU * Mmu
+    )
+{
+    gckOS os;
+    gckHARDWARE hardware;
+    gceSTATUS status;
+    gckMMU mmu = gcvNULL;
+    gctUINT32_PTR map;
+    gctPOINTER pointer = gcvNULL;
+#if gcdPROCESS_ADDRESS_SPACE
+    gctUINT32 i;
+    gctUINT32 physical;
+#endif
+    gctUINT32 physBase;
+    gctUINT32 physSize;
+    gctUINT32 gpuAddress;
+    gctPHYS_ADDR_T gpuPhysical;
+
+    gcmkHEADER_ARG("Kernel=0x%x MmuSize=%lu", Kernel, MmuSize);
+
+    /* Verify the arguments. */
+    gcmkVERIFY_OBJECT(Kernel, gcvOBJ_KERNEL);
+    gcmkVERIFY_ARGUMENT(MmuSize > 0);
+    gcmkVERIFY_ARGUMENT(Mmu != gcvNULL);
+
+    /* Extract the gckOS object pointer. */
+    os = Kernel->os;
+    gcmkVERIFY_OBJECT(os, gcvOBJ_OS);
+
+    /* Extract the gckHARDWARE object pointer. */
+    hardware = Kernel->hardware;
+    gcmkVERIFY_OBJECT(hardware, gcvOBJ_HARDWARE);
+
+    /* Allocate memory for the gckMMU object. */
+    gcmkONERROR(gckOS_Allocate(os, sizeof(struct _gckMMU), &pointer));
+
+    mmu = pointer;
+
+    /* Initialize the gckMMU object. */
+    mmu->object.type      = gcvOBJ_MMU;
+    mmu->os               = os;
+    mmu->hardware         = hardware;
+    mmu->pageTableMutex   = gcvNULL;
+    mmu->pageTableLogical = gcvNULL;
+    mmu->mtlbLogical      = gcvNULL;
+    mmu->staticSTLB       = gcvNULL;
+    mmu->enabled          = gcvFALSE;
+    mmu->mapLogical       = gcvNULL;
+
+    /* Create the page table mutex. */
+    gcmkONERROR(gckOS_CreateMutex(os, &mmu->pageTableMutex));
+
+    if (hardware->mmuVersion == 0)
+    {
+        mmu->pageTableSize = MmuSize;
+
+        /* Construct address space management table. */
+        gcmkONERROR(gckOS_Allocate(mmu->os,
+                                   mmu->pageTableSize,
+                                   &pointer));
+
+        mmu->mapLogical = pointer;
+
+        /* Construct page table read by GPU. */
+        gcmkONERROR(gckOS_AllocateContiguous(mmu->os,
+                    gcvFALSE,
+                    &mmu->pageTableSize,
+                    &mmu->pageTablePhysical,
+                    (gctPOINTER)&mmu->pageTableLogical));
+
+
+        /* Compute number of entries in page table. */
+        gcmkSAFECASTSIZET(mmu->pageTableEntries, mmu->pageTableSize / sizeof(gctUINT32));
+
+        /* Mark all pages as free. */
+        map      = mmu->mapLogical;
+
+#if gcdMMU_CLEAR_VALUE
+        _FillPageTable(mmu->pageTableLogical, mmu->pageTableEntries, gcdMMU_CLEAR_VALUE);
+#endif
+
+        _WritePageEntry(map,     (mmu->pageTableEntries << 8) | gcvMMU_FREE);
+        _WritePageEntry(map + 1, ~0U);
+        mmu->heapList  = 0;
+        mmu->freeNodes = gcvFALSE;
+    }
+    else
+    {
+        /* Allocate the 4K mode MTLB table. */
+        mmu->mtlbSize = gcdMMU_MTLB_SIZE + 64;
+
+        gcmkONERROR(
+            gckOS_AllocateContiguous(os,
+                                     gcvFALSE,
+                                     &mmu->mtlbSize,
+                                     &mmu->mtlbPhysical,
+                                     &pointer));
+
+        mmu->mtlbLogical = pointer;
+
+#if gcdPROCESS_ADDRESS_SPACE
+        _FillPageTable(pointer, mmu->mtlbSize / 4, gcdMMU_MTLB_EXCEPTION);
+
+        /* Allocate a array to store stlbs. */
+        gcmkONERROR(gckOS_Allocate(os, mmu->mtlbSize, &mmu->stlbs));
+
+        gckOS_ZeroMemory(mmu->stlbs, mmu->mtlbSize);
+
+        for (i = 0; i < gcdMAX_GPU_COUNT; i++)
+        {
+            gcmkONERROR(gckOS_AtomConstruct(os, &mmu->pageTableDirty[i]));
+        }
+
+        _SetupProcessAddressSpace(mmu);
+
+        /* Map kernel command buffer in MMU. */
+        for (i = 0; i < gcdCOMMAND_QUEUES; i++)
+        {
+            gcmkONERROR(gckOS_GetPhysicalAddress(
+                mmu->os,
+                Kernel->command->queues[i].logical,
+                &physical
+                ));
+
+            gcmkONERROR(gckMMU_FlatMapping(mmu, physical));
+        }
+#else
+        /* Invalid all the entries. */
+        gcmkONERROR(
+            gckOS_ZeroMemory(pointer, mmu->mtlbSize));
+
+        gcmkONERROR(
+            gckOS_QueryOption(mmu->os, "physBase", &physBase));
+
+        gcmkONERROR(
+            gckOS_QueryOption(mmu->os, "physSize", &physSize));
+
+        gcmkONERROR(
+            gckOS_CPUPhysicalToGPUPhysical(mmu->os, physBase, &gpuPhysical));
+
+        gcmkSAFECASTPHYSADDRT(gpuAddress, gpuPhysical);
+
+        /* Setup [physBase - physSize) flat mapping. */
+        gcmkONERROR(_FillFlatMapping(
+            mmu,
+            gpuAddress,
+            physSize
+            ));
+
+        gcmkONERROR(_SetupDynamicSpace(mmu));
+#endif
+    }
+
+    /* Return the gckMMU object pointer. */
+    *Mmu = mmu;
+
+    /* Success. */
+    gcmkFOOTER_ARG("*Mmu=0x%x", *Mmu);
+    return gcvSTATUS_OK;
+
+OnError:
+    /* Roll back. */
+    if (mmu != gcvNULL)
+    {
+        if (mmu->mapLogical != gcvNULL)
+        {
+            gcmkVERIFY_OK(
+                gckOS_Free(os, (gctPOINTER) mmu->mapLogical));
+
+
+            gcmkVERIFY_OK(
+                gckOS_FreeContiguous(os,
+                                     mmu->pageTablePhysical,
+                                     (gctPOINTER) mmu->pageTableLogical,
+                                     mmu->pageTableSize));
+        }
+
+        if (mmu->mtlbLogical != gcvNULL)
+        {
+            gcmkVERIFY_OK(
+                gckOS_FreeContiguous(os,
+                                     mmu->mtlbPhysical,
+                                     (gctPOINTER) mmu->mtlbLogical,
+                                     mmu->mtlbSize));
+        }
+
+        if (mmu->pageTableMutex != gcvNULL)
+        {
+            /* Delete the mutex. */
+            gcmkVERIFY_OK(
+                gckOS_DeleteMutex(os, mmu->pageTableMutex));
+        }
+
+        /* Mark the gckMMU object as unknown. */
+        mmu->object.type = gcvOBJ_UNKNOWN;
+
+        /* Free the allocates memory. */
+        gcmkVERIFY_OK(gcmkOS_SAFE_FREE(os, mmu));
+    }
+
+    /* Return the status. */
+    gcmkFOOTER();
+    return status;
+}
+
+/*******************************************************************************
+**
+**  _Destroy
+**
+**  Destroy a gckMMU object.
+**
+**  INPUT:
+**
+**      gckMMU Mmu
+**          Pointer to an gckMMU object.
+**
+**  OUTPUT:
+**
+**      Nothing.
+*/
+gceSTATUS
+_Destroy(
+    IN gckMMU Mmu
+    )
+{
+#if gcdPROCESS_ADDRESS_SPACE
+    gctUINT32 i;
+#endif
+    gcmkHEADER_ARG("Mmu=0x%x", Mmu);
+
+    /* Verify the arguments. */
+    gcmkVERIFY_OBJECT(Mmu, gcvOBJ_MMU);
+
+    while (Mmu->staticSTLB != gcvNULL)
+    {
+        gcsMMU_STLB_PTR pre = Mmu->staticSTLB;
+        Mmu->staticSTLB = pre->next;
+
+        if (pre->physical != gcvNULL)
+        {
+            gcmkVERIFY_OK(
+                gckOS_FreeContiguous(Mmu->os,
+                    pre->physical,
+                    pre->logical,
+                    pre->size));
+        }
+
+        if (pre->mtlbEntryNum != 0)
+        {
+            gcmkASSERT(pre->mtlbEntryNum == 1);
+            _WritePageEntry(Mmu->mtlbLogical + pre->mtlbIndex, 0);
+#if gcdMMU_TABLE_DUMP
+            gckOS_Print("%s(%d): clean MTLB[%d]\n",
+                __FUNCTION__, __LINE__,
+                pre->mtlbIndex);
+#endif
+        }
+
+        gcmkVERIFY_OK(gcmkOS_SAFE_FREE(Mmu->os, pre));
+    }
+
+    if (Mmu->hardware->mmuVersion != 0)
+    {
+        gcmkVERIFY_OK(
+                gckOS_FreeContiguous(Mmu->os,
+                    Mmu->mtlbPhysical,
+                    (gctPOINTER) Mmu->mtlbLogical,
+                    Mmu->mtlbSize));
+    }
+
+    /* Free address space management table. */
+    if (Mmu->mapLogical != gcvNULL)
+    {
+        gcmkVERIFY_OK(
+            gckOS_Free(Mmu->os, (gctPOINTER) Mmu->mapLogical));
+    }
+
+    if (Mmu->pageTableLogical != gcvNULL)
+    {
+        /* Free page table. */
+        gcmkVERIFY_OK(
+            gckOS_FreeContiguous(Mmu->os,
+                                 Mmu->pageTablePhysical,
+                                 (gctPOINTER) Mmu->pageTableLogical,
+                                 Mmu->pageTableSize));
+    }
+
+    /* Delete the page table mutex. */
+    gcmkVERIFY_OK(gckOS_DeleteMutex(Mmu->os, Mmu->pageTableMutex));
+
+#if gcdPROCESS_ADDRESS_SPACE
+    for (i = 0; i < Mmu->mtlbSize / 4; i++)
+    {
+        struct _gcsMMU_STLB *stlb = ((struct _gcsMMU_STLB **)Mmu->stlbs)[i];
+
+        if (stlb)
+        {
+            gcmkVERIFY_OK(gckOS_FreeContiguous(
+                Mmu->os,
+                stlb->physical,
+                stlb->logical,
+                stlb->size));
+
+            gcmkOS_SAFE_FREE(Mmu->os, stlb);
+        }
+    }
+
+    gcmkOS_SAFE_FREE(Mmu->os, Mmu->stlbs);
+#endif
+
+    /* Mark the gckMMU object as unknown. */
+    Mmu->object.type = gcvOBJ_UNKNOWN;
+
+    /* Free the gckMMU object. */
+    gcmkVERIFY_OK(gcmkOS_SAFE_FREE(Mmu->os, Mmu));
+
+    /* Success. */
+    gcmkFOOTER_NO();
+    return gcvSTATUS_OK;
+}
+
+/*******************************************************************************
+** _AdjstIndex
+**
+**  Adjust the index from which we search for a usable node to make sure
+**  index allocated is greater than Start.
+*/
+gceSTATUS
+_AdjustIndex(
+    IN gckMMU Mmu,
+    IN gctUINT32 Index,
+    IN gctUINT32 PageCount,
+    IN gctUINT32 Start,
+    OUT gctUINT32 * IndexAdjusted
+    )
+{
+    gceSTATUS status;
+    gctUINT32 index = Index;
+    gctUINT32_PTR map = Mmu->mapLogical;
+
+    gcmkHEADER();
+
+    for (; index < Mmu->pageTableEntries;)
+    {
+        gctUINT32 result = 0;
+        gctUINT32 nodeSize = 0;
+
+        if (index >= Start)
+        {
+            break;
+        }
+
+        switch (gcmENTRY_TYPE(map[index]))
+        {
+        case gcvMMU_SINGLE:
+            nodeSize = 1;
+            break;
+
+        case gcvMMU_FREE:
+            nodeSize = map[index] >> 8;
+            break;
+
+        default:
+            gcmkFATAL("MMU table correcupted at index %u!", index);
+            gcmkONERROR(gcvSTATUS_OUT_OF_RESOURCES);
+        }
+
+        if (nodeSize > PageCount)
+        {
+            result = index + (nodeSize - PageCount);
+
+            if (result >= Start)
+            {
+                break;
+            }
+        }
+
+        switch (gcmENTRY_TYPE(map[index]))
+        {
+        case gcvMMU_SINGLE:
+            index = map[index] >> 8;
+            break;
+
+        case gcvMMU_FREE:
+            index = map[index + 1];
+            break;
+
+        default:
+            gcmkFATAL("MMU table correcupted at index %u!", index);
+            gcmkONERROR(gcvSTATUS_OUT_OF_RESOURCES);
+        }
+    }
+
+    *IndexAdjusted = index;
+
+    gcmkFOOTER_NO();
+    return gcvSTATUS_OK;
+
+OnError:
+    gcmkFOOTER();
+    return status;
+}
+
+gceSTATUS
+gckMMU_Construct(
+    IN gckKERNEL Kernel,
+    IN gctSIZE_T MmuSize,
+    OUT gckMMU * Mmu
+    )
+{
+#if gcdSHARED_PAGETABLE
+    gceSTATUS status;
+    gctPOINTER pointer;
+
+    gcmkHEADER_ARG("Kernel=0x%08x", Kernel);
+
+    if (sharedPageTable == gcvNULL)
+    {
+        gcmkONERROR(
+                gckOS_Allocate(Kernel->os,
+                               sizeof(struct _gcsSharedPageTable),
+                               &pointer));
+        sharedPageTable = pointer;
+
+        gcmkONERROR(
+                gckOS_ZeroMemory(sharedPageTable,
+                    sizeof(struct _gcsSharedPageTable)));
+
+        gcmkONERROR(_Construct(Kernel, MmuSize, &sharedPageTable->mmu));
+    }
+
+    *Mmu = sharedPageTable->mmu;
+
+    sharedPageTable->hardwares[sharedPageTable->reference] = Kernel->hardware;
+
+    sharedPageTable->reference++;
+
+    gcmkFOOTER_ARG("sharedPageTable->reference=%lu", sharedPageTable->reference);
+    return gcvSTATUS_OK;
+
+OnError:
+    if (sharedPageTable)
+    {
+        if (sharedPageTable->mmu)
+        {
+            gcmkVERIFY_OK(gckMMU_Destroy(sharedPageTable->mmu));
+        }
+
+        gcmkVERIFY_OK(gcmkOS_SAFE_FREE(Kernel->os, sharedPageTable));
+    }
+
+    gcmkFOOTER();
+    return status;
+#elif gcdMIRROR_PAGETABLE
+    gceSTATUS status;
+    gctPOINTER pointer;
+
+    gcmkHEADER_ARG("Kernel=0x%08x", Kernel);
+
+    if (mirrorPageTable == gcvNULL)
+    {
+        gcmkONERROR(
+            gckOS_Allocate(Kernel->os,
+                           sizeof(struct _gcsMirrorPageTable),
+                           &pointer));
+        mirrorPageTable = pointer;
+
+        gcmkONERROR(
+            gckOS_ZeroMemory(mirrorPageTable,
+                    sizeof(struct _gcsMirrorPageTable)));
+
+        gcmkONERROR(
+            gckOS_CreateMutex(Kernel->os, &mirrorPageTableMutex));
+    }
+
+    gcmkONERROR(_Construct(Kernel, MmuSize, Mmu));
+
+    mirrorPageTable->mmus[mirrorPageTable->reference] = *Mmu;
+
+    mirrorPageTable->hardwares[mirrorPageTable->reference] = Kernel->hardware;
+
+    mirrorPageTable->reference++;
+
+    gcmkFOOTER_ARG("mirrorPageTable->reference=%lu", mirrorPageTable->reference);
+    return gcvSTATUS_OK;
+
+OnError:
+    if (mirrorPageTable && mirrorPageTable->reference == 0)
+    {
+        gcmkVERIFY_OK(gcmkOS_SAFE_FREE(Kernel->os, mirrorPageTable));
+    }
+
+    gcmkFOOTER();
+    return status;
+#else
+    return _Construct(Kernel, MmuSize, Mmu);
+#endif
+}
+
+gceSTATUS
+gckMMU_Destroy(
+    IN gckMMU Mmu
+    )
+{
+#if gcdSHARED_PAGETABLE
+    gckOS os = Mmu->os;
+
+    sharedPageTable->reference--;
+
+    if (sharedPageTable->reference == 0)
+    {
+        if (sharedPageTable->mmu)
+        {
+            gcmkVERIFY_OK(_Destroy(Mmu));
+        }
+
+        gcmkVERIFY_OK(gcmkOS_SAFE_FREE(os, sharedPageTable));
+    }
+
+    return gcvSTATUS_OK;
+#elif gcdMIRROR_PAGETABLE
+    mirrorPageTable->reference--;
+
+    if (mirrorPageTable->reference == 0)
+    {
+        gcmkVERIFY_OK(gcmkOS_SAFE_FREE(Mmu->os, mirrorPageTable));
+        gcmkVERIFY_OK(gcmkOS_SAFE_FREE(Mmu->os, mirrorPageTableMutex));
+    }
+
+    return _Destroy(Mmu);
+#else
+    return _Destroy(Mmu);
+#endif
+}
+
+/*******************************************************************************
+**
+**  gckMMU_AllocatePages
+**
+**  Allocate pages inside the page table.
+**
+**  INPUT:
+**
+**      gckMMU Mmu
+**          Pointer to an gckMMU object.
+**
+**      gctSIZE_T PageCount
+**          Number of pages to allocate.
+**
+**  OUTPUT:
+**
+**      gctPOINTER * PageTable
+**          Pointer to a variable that receives the base address of the page
+**          table.
+**
+**      gctUINT32 * Address
+**          Pointer to a variable that receives the hardware specific address.
+*/
+gceSTATUS
+_AllocatePages(
+    IN gckMMU Mmu,
+    IN gctSIZE_T PageCount,
+    IN gceSURF_TYPE Type,
+    OUT gctPOINTER * PageTable,
+    OUT gctUINT32 * Address
+    )
+{
+    gceSTATUS status;
+    gctBOOL mutex = gcvFALSE;
+    gctUINT32 index = 0, previous = ~0U, left;
+    gctUINT32_PTR map;
+    gctBOOL gotIt;
+    gctUINT32 address;
+    gctUINT32 pageCount;
+
+    gcmkHEADER_ARG("Mmu=0x%x PageCount=%lu", Mmu, PageCount);
+
+    /* Verify the arguments. */
+    gcmkVERIFY_OBJECT(Mmu, gcvOBJ_MMU);
+    gcmkVERIFY_ARGUMENT(PageCount > 0);
+    gcmkVERIFY_ARGUMENT(PageTable != gcvNULL);
+
+    if (PageCount > Mmu->pageTableEntries)
+    {
+        /* Not enough pages avaiable. */
+        gcmkONERROR(gcvSTATUS_OUT_OF_RESOURCES);
+    }
+
+    gcmkSAFECASTSIZET(pageCount, PageCount);
+
+    /* Grab the mutex. */
+    gcmkONERROR(gckOS_AcquireMutex(Mmu->os, Mmu->pageTableMutex, gcvINFINITE));
+    mutex = gcvTRUE;
+
+    /* Cast pointer to page table. */
+    for (map = Mmu->mapLogical, gotIt = gcvFALSE; !gotIt;)
+    {
+        index = Mmu->heapList;
+
+        if ((Mmu->hardware->mmuVersion == 0) && (Type == gcvSURF_VERTEX))
+        {
+            gcmkONERROR(_AdjustIndex(
+                Mmu,
+                index,
+                pageCount,
+                gcdVERTEX_START / gcmSIZEOF(gctUINT32),
+                &index
+                ));
+        }
+
+        /* Walk the heap list. */
+        for (; !gotIt && (index < Mmu->pageTableEntries);)
+        {
+            /* Check the node type. */
+            switch (gcmENTRY_TYPE(_ReadPageEntry(&map[index])))
+            {
+            case gcvMMU_SINGLE:
+                /* Single odes are valid if we only need 1 page. */
+                if (pageCount == 1)
+                {
+                    gotIt = gcvTRUE;
+                }
+                else
+                {
+                    /* Move to next node. */
+                    previous = index;
+                    index    = _ReadPageEntry(&map[index]) >> 8;
+                }
+                break;
+
+            case gcvMMU_FREE:
+                /* Test if the node has enough space. */
+                if (pageCount <= (_ReadPageEntry(&map[index]) >> 8))
+                {
+                    gotIt = gcvTRUE;
+                }
+                else
+                {
+                    /* Move to next node. */
+                    previous = index;
+                    index    = _ReadPageEntry(&map[index + 1]);
+                }
+                break;
+
+            default:
+                gcmkFATAL("MMU table correcupted at index %u!", index);
+                gcmkONERROR(gcvSTATUS_OUT_OF_RESOURCES);
+            }
+        }
+
+        /* Test if we are out of memory. */
+        if (index >= Mmu->pageTableEntries)
+        {
+            if (Mmu->freeNodes)
+            {
+                /* Time to move out the trash! */
+                gcmkONERROR(_Collect(Mmu));
+
+                /* We are going to search from start, so reset previous to start. */
+                previous = ~0U;
+            }
+            else
+            {
+                /* Out of resources. */
+                gcmkONERROR(gcvSTATUS_OUT_OF_RESOURCES);
+            }
+        }
+    }
+
+    switch (gcmENTRY_TYPE(_ReadPageEntry(&map[index])))
+    {
+    case gcvMMU_SINGLE:
+        /* Unlink single node from free list. */
+        gcmkONERROR(
+            _Link(Mmu, previous, _ReadPageEntry(&map[index]) >> 8));
+        break;
+
+    case gcvMMU_FREE:
+        /* Check how many pages will be left. */
+        left = (_ReadPageEntry(&map[index]) >> 8) - pageCount;
+        switch (left)
+        {
+        case 0:
+            /* The entire node is consumed, just unlink it. */
+            gcmkONERROR(
+                _Link(Mmu, previous, _ReadPageEntry(&map[index + 1])));
+            break;
+
+        case 1:
+            /* One page will remain.  Convert the node to a single node and
+            ** advance the index. */
+            _WritePageEntry(&map[index], (_ReadPageEntry(&map[index + 1]) << 8) | gcvMMU_SINGLE);
+            index ++;
+            break;
+
+        default:
+            /* Enough pages remain for a new node.  However, we will just adjust
+            ** the size of the current node and advance the index. */
+            _WritePageEntry(&map[index], (left << 8) | gcvMMU_FREE);
+            index += left;
+            break;
+        }
+        break;
+    }
+
+    /* Mark node as used. */
+    gcmkONERROR(_FillPageTable(&map[index], pageCount, gcvMMU_USED));
+
+    /* Return pointer to page table. */
+    *PageTable = &Mmu->pageTableLogical[index];
+
+    /* Build virtual address. */
+    if (Mmu->hardware->mmuVersion == 0)
+    {
+        gcmkONERROR(
+                gckHARDWARE_BuildVirtualAddress(Mmu->hardware, index, 0, &address));
+    }
+    else
+    {
+        gctUINT32 masterOffset = index / gcdMMU_STLB_4K_ENTRY_NUM
+                               + Mmu->dynamicMappingStart;
+        gctUINT32 slaveOffset = index % gcdMMU_STLB_4K_ENTRY_NUM;
+
+        address = (masterOffset << gcdMMU_MTLB_SHIFT)
+                | (slaveOffset << gcdMMU_STLB_4K_SHIFT);
+    }
+
+    if (Address != gcvNULL)
+    {
+        *Address = address;
+    }
+
+    /* Release the mutex. */
+    gcmkVERIFY_OK(gckOS_ReleaseMutex(Mmu->os, Mmu->pageTableMutex));
+
+    /* Success. */
+    gcmkFOOTER_ARG("*PageTable=0x%x *Address=%08x",
+                   *PageTable, gcmOPT_VALUE(Address));
+    return gcvSTATUS_OK;
+
+OnError:
+
+    if (mutex)
+    {
+        /* Release the mutex. */
+        gcmkVERIFY_OK(gckOS_ReleaseMutex(Mmu->os, Mmu->pageTableMutex));
+    }
+
+    /* Return the status. */
+    gcmkFOOTER();
+    return status;
+}
+
+/*******************************************************************************
+**
+**  gckMMU_FreePages
+**
+**  Free pages inside the page table.
+**
+**  INPUT:
+**
+**      gckMMU Mmu
+**          Pointer to an gckMMU object.
+**
+**      gctPOINTER PageTable
+**          Base address of the page table to free.
+**
+**      gctSIZE_T PageCount
+**          Number of pages to free.
+**
+**  OUTPUT:
+**
+**      Nothing.
+*/
+gceSTATUS
+_FreePages(
+    IN gckMMU Mmu,
+    IN gctPOINTER PageTable,
+    IN gctSIZE_T PageCount
+    )
+{
+    gctUINT32_PTR node;
+    gceSTATUS status;
+    gctBOOL acquired = gcvFALSE;
+    gctUINT32 pageCount;
+
+    gcmkHEADER_ARG("Mmu=0x%x PageTable=0x%x PageCount=%lu",
+                   Mmu, PageTable, PageCount);
+
+    /* Verify the arguments. */
+    gcmkVERIFY_OBJECT(Mmu, gcvOBJ_MMU);
+    gcmkVERIFY_ARGUMENT(PageTable != gcvNULL);
+    gcmkVERIFY_ARGUMENT(PageCount > 0);
+
+    gcmkSAFECASTSIZET(pageCount, PageCount);
+
+    /* Get the node by index. */
+    node = Mmu->mapLogical + ((gctUINT32_PTR)PageTable - Mmu->pageTableLogical);
+
+    gcmkONERROR(gckOS_AcquireMutex(Mmu->os, Mmu->pageTableMutex, gcvINFINITE));
+    acquired = gcvTRUE;
+
+#if gcdMMU_CLEAR_VALUE
+    if (Mmu->hardware->mmuVersion == 0)
+    {
+        _FillPageTable(PageTable, pageCount, gcdMMU_CLEAR_VALUE);
+    }
+#endif
+
+    if (PageCount == 1)
+    {
+       /* Single page node. */
+        _WritePageEntry(node, (~((1U<<8)-1)) | gcvMMU_SINGLE);
+#if gcdUSE_MMU_EXCEPTION
+        /* Enable exception */
+        _WritePageEntry(PageTable, (1 << 1));
+#endif
+    }
+    else
+    {
+        /* Mark the node as free. */
+        _WritePageEntry(node, (pageCount << 8) | gcvMMU_FREE);
+        _WritePageEntry(node + 1, ~0U);
+
+#if gcdUSE_MMU_EXCEPTION
+        /* Enable exception */
+        gcmkVERIFY_OK(_FillPageTable(PageTable, pageCount, 1 << 1));
+#endif
+    }
+
+    /* We have free nodes. */
+    Mmu->freeNodes = gcvTRUE;
+
+    gcmkVERIFY_OK(gckOS_ReleaseMutex(Mmu->os, Mmu->pageTableMutex));
+    acquired = gcvFALSE;
+
+    /* Success. */
+    gcmkFOOTER_NO();
+    return gcvSTATUS_OK;
+
+OnError:
+    if (acquired)
+    {
+        gcmkVERIFY_OK(gckOS_ReleaseMutex(Mmu->os, Mmu->pageTableMutex));
+    }
+
+    gcmkFOOTER();
+    return status;
+}
+
+gceSTATUS
+gckMMU_AllocatePages(
+    IN gckMMU Mmu,
+    IN gctSIZE_T PageCount,
+    OUT gctPOINTER * PageTable,
+    OUT gctUINT32 * Address
+    )
+{
+    return gckMMU_AllocatePagesEx(
+                Mmu, PageCount, gcvSURF_TYPE_UNKNOWN, PageTable, Address);
+}
+
+gceSTATUS
+gckMMU_AllocatePagesEx(
+    IN gckMMU Mmu,
+    IN gctSIZE_T PageCount,
+    IN gceSURF_TYPE Type,
+    OUT gctPOINTER * PageTable,
+    OUT gctUINT32 * Address
+    )
+{
+#if gcdMIRROR_PAGETABLE
+    gceSTATUS status;
+    gctPOINTER pageTable;
+    gctUINT32 address;
+    gctINT i;
+    gckMMU mmu;
+    gctBOOL acquired = gcvFALSE;
+    gctBOOL allocated = gcvFALSE;
+
+    gckOS_AcquireMutex(Mmu->os, mirrorPageTableMutex, gcvINFINITE);
+    acquired = gcvTRUE;
+
+    /* Allocate page table for current MMU. */
+    for (i = 0; i < (gctINT)mirrorPageTable->reference; i++)
+    {
+        if (Mmu == mirrorPageTable->mmus[i])
+        {
+            gcmkONERROR(_AllocatePages(Mmu, PageCount, Type, PageTable, Address));
+            allocated = gcvTRUE;
+        }
+    }
+
+    /* Allocate page table for other MMUs. */
+    for (i = 0; i < (gctINT)mirrorPageTable->reference; i++)
+    {
+        mmu = mirrorPageTable->mmus[i];
+
+        if (Mmu != mmu)
+        {
+            gcmkONERROR(_AllocatePages(mmu, PageCount, Type, &pageTable, &address));
+            gcmkASSERT(address == *Address);
+        }
+    }
+
+    gckOS_ReleaseMutex(Mmu->os, mirrorPageTableMutex);
+    acquired = gcvFALSE;
+
+    return gcvSTATUS_OK;
+OnError:
+
+    if (allocated)
+    {
+        /* Page tables for multiple GPU always keep the same. So it is impossible
+         * the fist one allocates successfully but others fail.
+         */
+        gcmkASSERT(0);
+    }
+
+    if (acquired)
+    {
+        gckOS_ReleaseMutex(Mmu->os, mirrorPageTableMutex);
+    }
+
+    return status;
+#else
+    return _AllocatePages(Mmu, PageCount, Type, PageTable, Address);
+#endif
+}
+
+gceSTATUS
+gckMMU_FreePages(
+    IN gckMMU Mmu,
+    IN gctPOINTER PageTable,
+    IN gctSIZE_T PageCount
+    )
+{
+#if gcdMIRROR_PAGETABLE
+    gctINT i;
+    gctUINT32 offset;
+    gckMMU mmu;
+
+    gckOS_AcquireMutex(Mmu->os, mirrorPageTableMutex, gcvINFINITE);
+
+    gcmkVERIFY_OK(_FreePages(Mmu, PageTable, PageCount));
+
+    offset = (gctUINT32)PageTable - (gctUINT32)Mmu->pageTableLogical;
+
+    for (i = 0; i < (gctINT)mirrorPageTable->reference; i++)
+    {
+        mmu = mirrorPageTable->mmus[i];
+
+        if (mmu != Mmu)
+        {
+            gcmkVERIFY_OK(_FreePages(mmu, mmu->pageTableLogical + offset/4, PageCount));
+        }
+    }
+
+    gckOS_ReleaseMutex(Mmu->os, mirrorPageTableMutex);
+
+    return gcvSTATUS_OK;
+#else
+    return _FreePages(Mmu, PageTable, PageCount);
+#endif
+}
+
+gceSTATUS
+gckMMU_SetPage(
+    IN gckMMU Mmu,
+    IN gctPHYS_ADDR_T PageAddress,
+    IN gctUINT32 *PageEntry
+    )
+{
+#if gcdMIRROR_PAGETABLE
+    gctUINT32_PTR pageEntry;
+    gctINT i;
+    gckMMU mmu;
+    gctUINT32 offset = (gctUINT32)PageEntry - (gctUINT32)Mmu->pageTableLogical;
+#endif
+    gctUINT32 addressExt;
+    gctUINT32 address;
+
+    gcmkHEADER_ARG("Mmu=0x%x", Mmu);
+
+    /* Verify the arguments. */
+    gcmkVERIFY_OBJECT(Mmu, gcvOBJ_MMU);
+    gcmkVERIFY_ARGUMENT(PageEntry != gcvNULL);
+    gcmkVERIFY_ARGUMENT(!(PageAddress & 0xFFF));
+
+    /* [31:0]. */
+    address    = (gctUINT32)(PageAddress & 0xFFFFFFFF);
+    /* [39:32]. */
+    addressExt = (gctUINT32)((PageAddress >> 32) & 0xFF);
+
+    if (Mmu->hardware->mmuVersion == 0)
+    {
+        _WritePageEntry(PageEntry, address);
+    }
+    else
+    {
+        _WritePageEntry(PageEntry, _SetPage(address, addressExt));
+    }
+
+#if gcdMIRROR_PAGETABLE
+    for (i = 0; i < (gctINT)mirrorPageTable->reference; i++)
+    {
+        mmu = mirrorPageTable->mmus[i];
+
+        if (mmu != Mmu)
+        {
+            pageEntry = mmu->pageTableLogical + offset / 4;
+
+            if (mmu->hardware->mmuVersion == 0)
+            {
+                _WritePageEntry(pageEntry, address);
+            }
+            else
+            {
+                _WritePageEntry(pageEntry, _SetPage(address, addressExt));
+            }
+        }
+
+    }
+#endif
+
+    /* Success. */
+    gcmkFOOTER_NO();
+    return gcvSTATUS_OK;
+}
+
+#if gcdPROCESS_ADDRESS_SPACE
+gceSTATUS
+gckMMU_GetPageEntry(
+    IN gckMMU Mmu,
+    IN gctUINT32 Address,
+    IN gctUINT32_PTR *PageTable
+    )
+{
+    gceSTATUS status;
+    struct _gcsMMU_STLB *stlb;
+    struct _gcsMMU_STLB **stlbs = Mmu->stlbs;
+    gctUINT32 offset = _MtlbOffset(Address);
+    gctUINT32 mtlbEntry;
+    gctBOOL ace = gckHARDWARE_IsFeatureAvailable(Mmu->hardware, gcvFEATURE_ACE);
+
+    gcmkHEADER_ARG("Mmu=0x%x", Mmu);
+
+    /* Verify the arguments. */
+    gcmkVERIFY_OBJECT(Mmu, gcvOBJ_MMU);
+    gcmkVERIFY_ARGUMENT((Address & 0xFFF) == 0);
+
+    stlb = stlbs[offset];
+
+    if (stlb == gcvNULL)
+    {
+        gcmkONERROR(_AllocateStlb(Mmu->os, &stlb));
+
+        mtlbEntry = stlb->physBase
+                  | gcdMMU_MTLB_4K_PAGE
+                  | gcdMMU_MTLB_PRESENT
+                  ;
+
+        if (ace)
+        {
+            mtlbEntry = mtlbEntry
+                      /* Secure */
+                      | (1 << 4);
+        }
+
+        /* Insert Slave TLB address to Master TLB entry.*/
+        _WritePageEntry(Mmu->mtlbLogical + offset, mtlbEntry);
+
+        /* Record stlb. */
+        stlbs[offset] = stlb;
+    }
+
+    *PageTable = &stlb->logical[_StlbOffset(Address)];
+
+    /* Success. */
+    gcmkFOOTER_NO();
+    return gcvSTATUS_OK;
+
+OnError:
+    gcmkFOOTER();
+    return status;
+}
+
+gceSTATUS
+_CheckMap(
+    IN gckMMU Mmu
+    )
+{
+    gceSTATUS status;
+    gctUINT32_PTR map = Mmu->mapLogical;
+    gctUINT32 index;
+
+    for (index = Mmu->heapList; index < Mmu->pageTableEntries;)
+    {
+        /* Check the node type. */
+        switch (gcmENTRY_TYPE(_ReadPageEntry(&map[index])))
+        {
+        case gcvMMU_SINGLE:
+            /* Move to next node. */
+            index    = _ReadPageEntry(&map[index]) >> 8;
+            break;
+
+        case gcvMMU_FREE:
+            /* Move to next node. */
+            index    = _ReadPageEntry(&map[index + 1]);
+            break;
+
+        default:
+            gcmkFATAL("MMU table correcupted at index [%u] = %x!", index, map[index]);
+            gcmkONERROR(gcvSTATUS_OUT_OF_RESOURCES);
+        }
+    }
+
+    return gcvSTATUS_OK;
+
+OnError:
+    return status;
+}
+
+gceSTATUS
+gckMMU_FlatMapping(
+    IN gckMMU Mmu,
+    IN gctUINT32 Physical
+    )
+{
+    gceSTATUS status;
+    gctUINT32 index = _AddressToIndex(Mmu, Physical);
+    gctUINT32 i;
+    gctBOOL gotIt = gcvFALSE;
+    gctUINT32_PTR map = Mmu->mapLogical;
+    gctUINT32 previous = ~0U;
+    gctUINT32_PTR pageTable;
+
+    gckMMU_GetPageEntry(Mmu, Physical, &pageTable);
+
+    _WritePageEntry(pageTable, _SetPage(Physical));
+
+    if (map)
+    {
+        /* Find node which contains index. */
+        for (i = 0; !gotIt && (i < Mmu->pageTableEntries);)
+        {
+            gctUINT32 numPages;
+
+            switch (gcmENTRY_TYPE(_ReadPageEntry(&map[i])))
+            {
+            case gcvMMU_SINGLE:
+                if (i == index)
+                {
+                    gotIt = gcvTRUE;
+                }
+                else
+                {
+                    previous = i;
+                    i = _ReadPageEntry(&map[i]) >> 8;
+                }
+                break;
+
+            case gcvMMU_FREE:
+                numPages = _ReadPageEntry(&map[i]) >> 8;
+                if (index >= i && index < i + numPages)
+                {
+                    gotIt = gcvTRUE;
+                }
+                else
+                {
+                    previous = i;
+                    i = _ReadPageEntry(&map[i + 1]);
+                }
+                break;
+
+            default:
+                gcmkFATAL("MMU table correcupted at index %u!", index);
+                gcmkONERROR(gcvSTATUS_OUT_OF_RESOURCES);
+            }
+        }
+
+        switch (gcmENTRY_TYPE(_ReadPageEntry(&map[i])))
+        {
+        case gcvMMU_SINGLE:
+            /* Unlink single node from free list. */
+            gcmkONERROR(
+                _Link(Mmu, previous, _ReadPageEntry(&map[i]) >> 8));
+            break;
+
+        case gcvMMU_FREE:
+            /* Split the node. */
+            {
+                gctUINT32 start;
+                gctUINT32 next = _ReadPageEntry(&map[i+1]);
+                gctUINT32 total = _ReadPageEntry(&map[i]) >> 8;
+                gctUINT32 countLeft = index - i;
+                gctUINT32 countRight = total - countLeft - 1;
+
+                if (countLeft)
+                {
+                    start = i;
+                    _AddFree(Mmu, previous, start, countLeft);
+                    previous = start;
+                }
+
+                if (countRight)
+                {
+                    start = index + 1;
+                    _AddFree(Mmu, previous, start, countRight);
+                    previous = start;
+                }
+
+                _Link(Mmu, previous, next);
+            }
+            break;
+        }
+    }
+
+    return gcvSTATUS_OK;
+
+OnError:
+
+    /* Roll back. */
+    return status;
+}
+
+
+
+gceSTATUS
+gckMMU_FreePagesEx(
+    IN gckMMU Mmu,
+    IN gctUINT32 Address,
+    IN gctSIZE_T PageCount
+    )
+{
+    gctUINT32_PTR node;
+    gceSTATUS status;
+
+#if gcdUSE_MMU_EXCEPTION
+    gctUINT32 i;
+    struct _gcsMMU_STLB *stlb;
+    struct _gcsMMU_STLB **stlbs = Mmu->stlbs;
+#endif
+
+    gcmkHEADER_ARG("Mmu=0x%x Address=0x%x PageCount=%lu",
+                   Mmu, Address, PageCount);
+
+    /* Verify the arguments. */
+    gcmkVERIFY_OBJECT(Mmu, gcvOBJ_MMU);
+    gcmkVERIFY_ARGUMENT(PageCount > 0);
+
+    /* Get the node by index. */
+    node = Mmu->mapLogical + _AddressToIndex(Mmu, Address);
+
+    gcmkONERROR(gckOS_AcquireMutex(Mmu->os, Mmu->pageTableMutex, gcvINFINITE));
+
+    if (PageCount == 1)
+    {
+       /* Single page node. */
+        _WritePageEntry(node, (~((1U<<8)-1)) | gcvMMU_SINGLE);
+    }
+    else
+    {
+        /* Mark the node as free. */
+        _WritePageEntry(node, (PageCount << 8) | gcvMMU_FREE);
+        _WritePageEntry(node + 1, ~0U);
+    }
+
+    /* We have free nodes. */
+    Mmu->freeNodes = gcvTRUE;
+
+#if gcdUSE_MMU_EXCEPTION
+    for (i = 0; i < PageCount; i++)
+    {
+        /* Get */
+        stlb = stlbs[_MtlbOffset(Address)];
+
+        /* Enable exception */
+        stlb->logical[_StlbOffset(Address)] = gcdMMU_STLB_EXCEPTION;
+    }
+#endif
+
+    gcmkVERIFY_OK(gckOS_ReleaseMutex(Mmu->os, Mmu->pageTableMutex));
+
+
+    /* Success. */
+    gcmkFOOTER_NO();
+    return gcvSTATUS_OK;
+
+OnError:
+    gcmkFOOTER();
+    return status;
+}
+#endif
+
+gceSTATUS
+gckMMU_Flush(
+    IN gckMMU Mmu,
+    IN gceSURF_TYPE Type
+    )
+{
+    gckHARDWARE hardware;
+    gctUINT32 mask;
+    gctINT i;
+
+    if (Type == gcvSURF_VERTEX || Type == gcvSURF_INDEX)
+    {
+        mask = gcvPAGE_TABLE_DIRTY_BIT_FE;
+    }
+    else
+    {
+        mask = gcvPAGE_TABLE_DIRTY_BIT_OTHER;
+    }
+
+#if gcdPROCESS_ADDRESS_SPACE
+    for (i = 0; i < gcdMAX_GPU_COUNT; i++)
+    {
+        gcmkVERIFY_OK(
+            gckOS_AtomSetMask(Mmu->pageTableDirty[i], mask));
+    }
+#else
+#if gcdSHARED_PAGETABLE
+    for (i = 0; i < gcdMAX_GPU_COUNT; i++)
+    {
+        hardware = sharedPageTable->hardwares[i];
+        if (hardware)
+        {
+            gcmkVERIFY_OK(gckOS_AtomSetMask(hardware->pageTableDirty, mask));
+        }
+    }
+#elif gcdMIRROR_PAGETABLE
+    for (i = 0; i < (gctINT)mirrorPageTable->reference; i++)
+    {
+        hardware = mirrorPageTable->hardwares[i];
+
+        /* Notify cores who use this page table. */
+        gcmkVERIFY_OK(
+            gckOS_AtomSetMask(hardware->pageTableDirty, mask));
+    }
+#else
+    hardware = Mmu->hardware;
+    gcmkVERIFY_OK(
+        gckOS_AtomSetMask(hardware->pageTableDirty, mask));
+#endif
+#endif
+
+    return gcvSTATUS_OK;
+}
+
+gceSTATUS
+gckMMU_DumpPageTableEntry(
+    IN gckMMU Mmu,
+    IN gctUINT32 Address
+    )
+{
+#if gcdPROCESS_ADDRESS_SPACE
+    gcsMMU_STLB_PTR *stlbs = Mmu->stlbs;
+    gcsMMU_STLB_PTR stlbDesc = stlbs[_MtlbOffset(Address)];
+#else
+    gctUINT32_PTR pageTable;
+    gctUINT32 index;
+    gctUINT32 mtlb, stlb;
+#endif
+
+    gcmkHEADER_ARG("Mmu=0x%08X Address=0x%08X", Mmu, Address);
+    gcmkVERIFY_OBJECT(Mmu, gcvOBJ_MMU);
+
+    gcmkASSERT(Mmu->hardware->mmuVersion > 0);
+
+#if gcdPROCESS_ADDRESS_SPACE
+    if (stlbDesc)
+    {
+        gcmkPRINT("    STLB entry = 0x%08X",
+                  _ReadPageEntry(&stlbDesc->logical[_StlbOffset(Address)]));
+    }
+    else
+    {
+        gcmkPRINT("    MTLB entry is empty.");
+    }
+#else
+    mtlb   = (Address & gcdMMU_MTLB_MASK) >> gcdMMU_MTLB_SHIFT;
+
+    if (mtlb >= Mmu->dynamicMappingStart)
+    {
+        stlb   = (Address & gcdMMU_STLB_4K_MASK) >> gcdMMU_STLB_4K_SHIFT;
+
+        pageTable = Mmu->pageTableLogical;
+
+        index = (mtlb - Mmu->dynamicMappingStart)
+              * gcdMMU_STLB_4K_ENTRY_NUM
+              + stlb;
+
+        gcmkPRINT("    Page table entry = 0x%08X", _ReadPageEntry(pageTable + index));
+    }
+    else
+    {
+        gcsMMU_STLB_PTR stlbObj = Mmu->staticSTLB;
+        gctUINT32 entry = Mmu->mtlbLogical[mtlb];
+
+        stlb = (Address & gcdMMU_STLB_64K_MASK) >> gcdMMU_STLB_64K_SHIFT;
+
+        entry &= 0xFFFFFFF0;
+
+        while (stlbObj)
+        {
+
+            if (entry == stlbObj->physBase)
+            {
+                gcmkPRINT("    Page table entry = 0x%08X", stlbObj->logical[stlb]);
+                break;
+            }
+
+            stlbObj = stlbObj->next;
+        }
+    }
+#endif
+
+    gcmkFOOTER_NO();
+    return gcvSTATUS_OK;
+}
+
+/******************************************************************************
+****************************** T E S T   C O D E ******************************
+******************************************************************************/
+
diff --git a/src/hal/kernel/gc_hal_kernel_power.c b/src/hal/kernel/gc_hal_kernel_power.c
new file mode 100755
index 0000000..5246cfc
--- /dev/null
+++ b/src/hal/kernel/gc_hal_kernel_power.c
@@ -0,0 +1,381 @@
+/****************************************************************************
+*
+*    The MIT License (MIT)
+*
+*    Copyright (c) 2014 Vivante Corporation
+*
+*    Permission is hereby granted, free of charge, to any person obtaining a
+*    copy of this software and associated documentation files (the "Software"),
+*    to deal in the Software without restriction, including without limitation
+*    the rights to use, copy, modify, merge, publish, distribute, sublicense,
+*    and/or sell copies of the Software, and to permit persons to whom the
+*    Software is furnished to do so, subject to the following conditions:
+*
+*    The above copyright notice and this permission notice shall be included in
+*    all copies or substantial portions of the Software.
+*
+*    THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+*    IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+*    FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+*    AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+*    LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+*    FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+*    DEALINGS IN THE SOFTWARE.
+*
+*****************************************************************************
+*
+*    The GPL License (GPL)
+*
+*    Copyright (C) 2014  Vivante Corporation
+*
+*    This program is free software; you can redistribute it and/or
+*    modify it under the terms of the GNU General Public License
+*    as published by the Free Software Foundation; either version 2
+*    of the License, or (at your option) any later version.
+*
+*    This program is distributed in the hope that it will be useful,
+*    but WITHOUT ANY WARRANTY; without even the implied warranty of
+*    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+*    GNU General Public License for more details.
+*
+*    You should have received a copy of the GNU General Public License
+*    along with this program; if not, write to the Free Software Foundation,
+*    Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+*
+*****************************************************************************
+*
+*    Note: This software is released under dual MIT and GPL licenses. A
+*    recipient may use this file under the terms of either the MIT license or
+*    GPL License. If you wish to use only one license not the other, you can
+*    indicate your decision by deleting one of the above license notices in your
+*    version of this file.
+*
+*****************************************************************************/
+
+
+#include "gc_hal_kernel_precomp.h"
+
+#define _GC_OBJ_ZONE    gcvZONE_POWER
+
+/******************************************************************************\
+************************ Dynamic Voltage Frequency Setting *********************
+\******************************************************************************/
+#if gcdDVFS
+static gctUINT32
+_GetLoadHistory(
+    IN gckDVFS Dvfs,
+    IN gctUINT32 Select,
+    IN gctUINT32 Index
+)
+{
+    return Dvfs->loads[Index];
+}
+
+static void
+_IncreaseScale(
+    IN gckDVFS Dvfs,
+    IN gctUINT32 Load,
+    OUT gctUINT8 *Scale
+    )
+{
+    if (Dvfs->currentScale < 32)
+    {
+        *Scale = Dvfs->currentScale + 8;
+    }
+    else
+    {
+        *Scale = Dvfs->currentScale + 8;
+        *Scale = gcmMIN(64, *Scale);
+    }
+}
+
+static void
+_RecordFrequencyHistory(
+    gckDVFS Dvfs,
+    gctUINT32 Frequency
+    )
+{
+    gctUINT32 i = 0;
+
+    struct _FrequencyHistory *history = Dvfs->frequencyHistory;
+
+    for (i = 0; i < 16; i++)
+    {
+        if (history->frequency == Frequency)
+        {
+            break;
+        }
+
+        if (history->frequency == 0)
+        {
+            history->frequency = Frequency;
+            break;
+        }
+
+        history++;
+    }
+
+    if (i < 16)
+    {
+        history->count++;
+    }
+}
+
+static gctUINT32
+_GetFrequencyHistory(
+    gckDVFS Dvfs,
+    gctUINT32 Frequency
+    )
+{
+    gctUINT32 i = 0;
+
+    struct _FrequencyHistory * history = Dvfs->frequencyHistory;
+
+    for (i = 0; i < 16; i++)
+    {
+        if (history->frequency == Frequency)
+        {
+            break;
+        }
+
+        history++;
+    }
+
+    if (i < 16)
+    {
+        return history->count;
+    }
+
+    return 0;
+}
+
+static void
+_Policy(
+    IN gckDVFS Dvfs,
+    IN gctUINT32 Load,
+    OUT gctUINT8 *Scale
+    )
+{
+    gctUINT8 load[4], nextLoad;
+    gctUINT8 scale;
+
+    /* Last 4 history. */
+    load[0] = (Load & 0xFF);
+    load[1] = (Load & 0xFF00) >> 8;
+    load[2] = (Load & 0xFF0000) >> 16;
+    load[3] = (Load & 0xFF000000) >> 24;
+
+    /* Determine target scale. */
+    if (load[0] > 54)
+    {
+        _IncreaseScale(Dvfs, Load, &scale);
+    }
+    else
+    {
+        nextLoad = (load[0] + load[1] + load[2] + load[3])/4;
+
+        scale = Dvfs->currentScale * (nextLoad) / 54;
+
+        scale = gcmMAX(1, scale);
+        scale = gcmMIN(64, scale);
+    }
+
+    Dvfs->totalConfig++;
+
+    Dvfs->loads[(load[0]-1)/8]++;
+
+    *Scale = scale;
+
+
+    if (Dvfs->totalConfig % 100 == 0)
+    {
+        gcmkPRINT("=======================================================");
+        gcmkPRINT("GPU Load:       %-8d %-8d %-8d %-8d %-8d %-8d %-8d %-8d",
+                                   8, 16, 24, 32, 40, 48, 56, 64);
+        gcmkPRINT("                %-8d %-8d %-8d %-8d %-8d %-8d %-8d %-8d",
+                  _GetLoadHistory(Dvfs,2, 0),
+                  _GetLoadHistory(Dvfs,2, 1),
+                  _GetLoadHistory(Dvfs,2, 2),
+                  _GetLoadHistory(Dvfs,2, 3),
+                  _GetLoadHistory(Dvfs,2, 4),
+                  _GetLoadHistory(Dvfs,2, 5),
+                  _GetLoadHistory(Dvfs,2, 6),
+                  _GetLoadHistory(Dvfs,2, 7)
+                  );
+
+        gcmkPRINT("Frequency(MHz)  %-8d %-8d %-8d %-8d %-8d",
+                  58, 120, 240, 360, 480);
+        gcmkPRINT("                %-8d %-8d %-8d %-8d %-8d",
+                  _GetFrequencyHistory(Dvfs, 58),
+                  _GetFrequencyHistory(Dvfs,120),
+                  _GetFrequencyHistory(Dvfs,240),
+                  _GetFrequencyHistory(Dvfs,360),
+                  _GetFrequencyHistory(Dvfs,480)
+                  );
+    }
+}
+
+static void
+_TimerFunction(
+    gctPOINTER Data
+    )
+{
+    gceSTATUS status;
+    gckDVFS dvfs = (gckDVFS) Data;
+    gckHARDWARE hardware = dvfs->hardware;
+    gctUINT32 value;
+    gctUINT32 frequency;
+    gctUINT8 scale;
+    gctUINT32 t1, t2, consumed;
+
+    gckOS_GetTicks(&t1);
+
+    gcmkONERROR(gckHARDWARE_QueryLoad(hardware, &value));
+
+    /* determine target sacle. */
+    _Policy(dvfs, value, &scale);
+
+    /* Set frequency and voltage. */
+    gcmkONERROR(gckOS_SetGPUFrequency(hardware->os, hardware->core, scale));
+
+    /* Query real frequency. */
+    gcmkONERROR(
+        gckOS_QueryGPUFrequency(hardware->os,
+                                hardware->core,
+                                &frequency,
+                                &dvfs->currentScale));
+
+    _RecordFrequencyHistory(dvfs, frequency);
+
+    gcmkTRACE_ZONE(gcvLEVEL_INFO, gcvZONE_POWER,
+                   "Current frequency = %d",
+                   frequency);
+
+    /* Set period. */
+    gcmkONERROR(gckHARDWARE_SetDVFSPeroid(hardware, frequency));
+
+OnError:
+    /* Determine next querying time. */
+    gckOS_GetTicks(&t2);
+
+    consumed = gcmMIN(((long)t2 - (long)t1), 5);
+
+    if (dvfs->stop == gcvFALSE)
+    {
+        gcmkVERIFY_OK(gckOS_StartTimer(hardware->os,
+                                       dvfs->timer,
+                                       dvfs->pollingTime - consumed));
+    }
+
+    return;
+}
+
+gceSTATUS
+gckDVFS_Construct(
+    IN gckHARDWARE Hardware,
+    OUT gckDVFS * Dvfs
+    )
+{
+    gceSTATUS status;
+    gctPOINTER pointer;
+    gckDVFS dvfs = gcvNULL;
+    gckOS os = Hardware->os;
+
+    gcmkHEADER_ARG("Hardware=0x%X", Hardware);
+
+    gcmkVERIFY_OBJECT(Hardware, gcvOBJ_HARDWARE);
+    gcmkVERIFY_ARGUMENT(Dvfs != gcvNULL);
+
+    /* Allocate a gckDVFS manager. */
+    gcmkONERROR(gckOS_Allocate(os, gcmSIZEOF(struct _gckDVFS), &pointer));
+
+    gckOS_ZeroMemory(pointer, gcmSIZEOF(struct _gckDVFS));
+
+    dvfs = pointer;
+
+    /* Initialization. */
+    dvfs->hardware = Hardware;
+    dvfs->pollingTime = gcdDVFS_POLLING_TIME;
+    dvfs->os = Hardware->os;
+    dvfs->currentScale = 64;
+
+    /* Create a polling timer. */
+    gcmkONERROR(gckOS_CreateTimer(os, _TimerFunction, pointer, &dvfs->timer));
+
+    /* Initialize frequency and voltage adjustment helper. */
+    gcmkONERROR(gckOS_PrepareGPUFrequency(os, Hardware->core));
+
+    /* Return result. */
+    *Dvfs = dvfs;
+
+    gcmkFOOTER_NO();
+    return gcvSTATUS_OK;
+
+OnError:
+    /* Roll back. */
+    if (dvfs)
+    {
+        if (dvfs->timer)
+        {
+            gcmkVERIFY_OK(gckOS_DestroyTimer(os, dvfs->timer));
+        }
+
+        gcmkOS_SAFE_FREE(os, dvfs);
+    }
+
+    gcmkFOOTER();
+    return status;
+}
+
+gceSTATUS
+gckDVFS_Destroy(
+    IN gckDVFS Dvfs
+    )
+{
+    gcmkHEADER_ARG("Dvfs=0x%X", Dvfs);
+    gcmkVERIFY_ARGUMENT(Dvfs != gcvNULL);
+
+    /* Deinitialize helper fuunction. */
+    gcmkVERIFY_OK(gckOS_FinishGPUFrequency(Dvfs->os, Dvfs->hardware->core));
+
+    /* DestroyTimer. */
+    gcmkVERIFY_OK(gckOS_DestroyTimer(Dvfs->os, Dvfs->timer));
+
+    gcmkOS_SAFE_FREE(Dvfs->os, Dvfs);
+
+    gcmkFOOTER_NO();
+    return gcvSTATUS_OK;
+}
+
+gceSTATUS
+gckDVFS_Start(
+    IN gckDVFS Dvfs
+    )
+{
+    gcmkHEADER_ARG("Dvfs=0x%X", Dvfs);
+    gcmkVERIFY_ARGUMENT(Dvfs != gcvNULL);
+
+    gckHARDWARE_InitDVFS(Dvfs->hardware);
+
+    Dvfs->stop = gcvFALSE;
+
+    gckOS_StartTimer(Dvfs->os, Dvfs->timer, Dvfs->pollingTime);
+
+    gcmkFOOTER_NO();
+    return gcvSTATUS_OK;
+}
+
+gceSTATUS
+gckDVFS_Stop(
+    IN gckDVFS Dvfs
+    )
+{
+    gcmkHEADER_ARG("Dvfs=0x%X", Dvfs);
+    gcmkVERIFY_ARGUMENT(Dvfs != gcvNULL);
+
+    Dvfs->stop = gcvTRUE;
+
+    gcmkFOOTER_NO();
+    return gcvSTATUS_OK;
+}
+#endif
diff --git a/src/hal/kernel/gc_hal_kernel_precomp.h b/src/hal/kernel/gc_hal_kernel_precomp.h
new file mode 100755
index 0000000..a2b5e77
--- /dev/null
+++ b/src/hal/kernel/gc_hal_kernel_precomp.h
@@ -0,0 +1,63 @@
+/****************************************************************************
+*
+*    The MIT License (MIT)
+*
+*    Copyright (c) 2014 Vivante Corporation
+*
+*    Permission is hereby granted, free of charge, to any person obtaining a
+*    copy of this software and associated documentation files (the "Software"),
+*    to deal in the Software without restriction, including without limitation
+*    the rights to use, copy, modify, merge, publish, distribute, sublicense,
+*    and/or sell copies of the Software, and to permit persons to whom the
+*    Software is furnished to do so, subject to the following conditions:
+*
+*    The above copyright notice and this permission notice shall be included in
+*    all copies or substantial portions of the Software.
+*
+*    THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+*    IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+*    FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+*    AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+*    LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+*    FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+*    DEALINGS IN THE SOFTWARE.
+*
+*****************************************************************************
+*
+*    The GPL License (GPL)
+*
+*    Copyright (C) 2014  Vivante Corporation
+*
+*    This program is free software; you can redistribute it and/or
+*    modify it under the terms of the GNU General Public License
+*    as published by the Free Software Foundation; either version 2
+*    of the License, or (at your option) any later version.
+*
+*    This program is distributed in the hope that it will be useful,
+*    but WITHOUT ANY WARRANTY; without even the implied warranty of
+*    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+*    GNU General Public License for more details.
+*
+*    You should have received a copy of the GNU General Public License
+*    along with this program; if not, write to the Free Software Foundation,
+*    Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+*
+*****************************************************************************
+*
+*    Note: This software is released under dual MIT and GPL licenses. A
+*    recipient may use this file under the terms of either the MIT license or
+*    GPL License. If you wish to use only one license not the other, you can
+*    indicate your decision by deleting one of the above license notices in your
+*    version of this file.
+*
+*****************************************************************************/
+
+
+#ifndef __gc_hal_kernel_precomp_h_
+#define __gc_hal_kernel_precomp_h_
+
+#include "gc_hal.h"
+#include "gc_hal_driver.h"
+#include "gc_hal_kernel.h"
+
+#endif /* __gc_hal_kernel_precomp_h_ */
diff --git a/src/hal/kernel/gc_hal_kernel_security.c b/src/hal/kernel/gc_hal_kernel_security.c
new file mode 100755
index 0000000..41da90d
--- /dev/null
+++ b/src/hal/kernel/gc_hal_kernel_security.c
@@ -0,0 +1,62 @@
+/****************************************************************************
+*
+*    The MIT License (MIT)
+*
+*    Copyright (c) 2014 Vivante Corporation
+*
+*    Permission is hereby granted, free of charge, to any person obtaining a
+*    copy of this software and associated documentation files (the "Software"),
+*    to deal in the Software without restriction, including without limitation
+*    the rights to use, copy, modify, merge, publish, distribute, sublicense,
+*    and/or sell copies of the Software, and to permit persons to whom the
+*    Software is furnished to do so, subject to the following conditions:
+*
+*    The above copyright notice and this permission notice shall be included in
+*    all copies or substantial portions of the Software.
+*
+*    THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+*    IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+*    FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+*    AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+*    LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+*    FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+*    DEALINGS IN THE SOFTWARE.
+*
+*****************************************************************************
+*
+*    The GPL License (GPL)
+*
+*    Copyright (C) 2014  Vivante Corporation
+*
+*    This program is free software; you can redistribute it and/or
+*    modify it under the terms of the GNU General Public License
+*    as published by the Free Software Foundation; either version 2
+*    of the License, or (at your option) any later version.
+*
+*    This program is distributed in the hope that it will be useful,
+*    but WITHOUT ANY WARRANTY; without even the implied warranty of
+*    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+*    GNU General Public License for more details.
+*
+*    You should have received a copy of the GNU General Public License
+*    along with this program; if not, write to the Free Software Foundation,
+*    Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+*
+*****************************************************************************
+*
+*    Note: This software is released under dual MIT and GPL licenses. A
+*    recipient may use this file under the terms of either the MIT license or
+*    GPL License. If you wish to use only one license not the other, you can
+*    indicate your decision by deleting one of the above license notices in your
+*    version of this file.
+*
+*****************************************************************************/
+
+
+#include "gc_hal_kernel_precomp.h"
+
+
+
+
+#define _GC_OBJ_ZONE    gcvZONE_KERNEL
+
diff --git a/src/hal/kernel/gc_hal_kernel_video_memory.c b/src/hal/kernel/gc_hal_kernel_video_memory.c
new file mode 100755
index 0000000..a9f1f5f
--- /dev/null
+++ b/src/hal/kernel/gc_hal_kernel_video_memory.c
@@ -0,0 +1,2761 @@
+/****************************************************************************
+*
+*    The MIT License (MIT)
+*
+*    Copyright (c) 2014 Vivante Corporation
+*
+*    Permission is hereby granted, free of charge, to any person obtaining a
+*    copy of this software and associated documentation files (the "Software"),
+*    to deal in the Software without restriction, including without limitation
+*    the rights to use, copy, modify, merge, publish, distribute, sublicense,
+*    and/or sell copies of the Software, and to permit persons to whom the
+*    Software is furnished to do so, subject to the following conditions:
+*
+*    The above copyright notice and this permission notice shall be included in
+*    all copies or substantial portions of the Software.
+*
+*    THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+*    IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+*    FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+*    AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+*    LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+*    FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+*    DEALINGS IN THE SOFTWARE.
+*
+*****************************************************************************
+*
+*    The GPL License (GPL)
+*
+*    Copyright (C) 2014  Vivante Corporation
+*
+*    This program is free software; you can redistribute it and/or
+*    modify it under the terms of the GNU General Public License
+*    as published by the Free Software Foundation; either version 2
+*    of the License, or (at your option) any later version.
+*
+*    This program is distributed in the hope that it will be useful,
+*    but WITHOUT ANY WARRANTY; without even the implied warranty of
+*    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+*    GNU General Public License for more details.
+*
+*    You should have received a copy of the GNU General Public License
+*    along with this program; if not, write to the Free Software Foundation,
+*    Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+*
+*****************************************************************************
+*
+*    Note: This software is released under dual MIT and GPL licenses. A
+*    recipient may use this file under the terms of either the MIT license or
+*    GPL License. If you wish to use only one license not the other, you can
+*    indicate your decision by deleting one of the above license notices in your
+*    version of this file.
+*
+*****************************************************************************/
+
+
+#include "gc_hal_kernel_precomp.h"
+
+#define _GC_OBJ_ZONE    gcvZONE_VIDMEM
+
+/******************************************************************************\
+******************************* Private Functions ******************************
+\******************************************************************************/
+
+/*******************************************************************************
+**
+**  _Split
+**
+**  Split a node on the required byte boundary.
+**
+**  INPUT:
+**
+**      gckOS Os
+**          Pointer to an gckOS object.
+**
+**      gcuVIDMEM_NODE_PTR Node
+**          Pointer to the node to split.
+**
+**      gctSIZE_T Bytes
+**          Number of bytes to keep in the node.
+**
+**  OUTPUT:
+**
+**      Nothing.
+**
+**  RETURNS:
+**
+**      gctBOOL
+**          gcvTRUE if the node was split successfully, or gcvFALSE if there is an
+**          error.
+**
+*/
+static gctBOOL
+_Split(
+    IN gckOS Os,
+    IN gcuVIDMEM_NODE_PTR Node,
+    IN gctSIZE_T Bytes
+    )
+{
+    gcuVIDMEM_NODE_PTR node;
+    gctPOINTER pointer = gcvNULL;
+
+    /* Make sure the byte boundary makes sense. */
+    if ((Bytes <= 0) || (Bytes > Node->VidMem.bytes))
+    {
+        return gcvFALSE;
+    }
+
+    /* Allocate a new gcuVIDMEM_NODE object. */
+    if (gcmIS_ERROR(gckOS_Allocate(Os,
+                                   gcmSIZEOF(gcuVIDMEM_NODE),
+                                   &pointer)))
+    {
+        /* Error. */
+        return gcvFALSE;
+    }
+
+    node = pointer;
+
+    /* Initialize gcuVIDMEM_NODE structure. */
+    node->VidMem.offset    = Node->VidMem.offset + Bytes;
+    node->VidMem.bytes     = Node->VidMem.bytes  - Bytes;
+    node->VidMem.alignment = 0;
+    node->VidMem.locked    = 0;
+    node->VidMem.memory    = Node->VidMem.memory;
+    node->VidMem.pool      = Node->VidMem.pool;
+    node->VidMem.physical  = Node->VidMem.physical;
+#ifdef __QNXNTO__
+    node->VidMem.processID = 0;
+    node->VidMem.logical   = gcvNULL;
+#endif
+
+    /* Insert node behind specified node. */
+    node->VidMem.next = Node->VidMem.next;
+    node->VidMem.prev = Node;
+    Node->VidMem.next = node->VidMem.next->VidMem.prev = node;
+
+    /* Insert free node behind specified node. */
+    node->VidMem.nextFree = Node->VidMem.nextFree;
+    node->VidMem.prevFree = Node;
+    Node->VidMem.nextFree = node->VidMem.nextFree->VidMem.prevFree = node;
+
+    /* Adjust size of specified node. */
+    Node->VidMem.bytes = Bytes;
+
+    /* Success. */
+    return gcvTRUE;
+}
+
+/*******************************************************************************
+**
+**  _Merge
+**
+**  Merge two adjacent nodes together.
+**
+**  INPUT:
+**
+**      gckOS Os
+**          Pointer to an gckOS object.
+**
+**      gcuVIDMEM_NODE_PTR Node
+**          Pointer to the first of the two nodes to merge.
+**
+**  OUTPUT:
+**
+**      Nothing.
+**
+*/
+static gceSTATUS
+_Merge(
+    IN gckOS Os,
+    IN gcuVIDMEM_NODE_PTR Node
+    )
+{
+    gcuVIDMEM_NODE_PTR node;
+    gceSTATUS status;
+
+    /* Save pointer to next node. */
+    node = Node->VidMem.next;
+
+    /* This is a good time to make sure the heap is not corrupted. */
+    if (Node->VidMem.offset + Node->VidMem.bytes != node->VidMem.offset)
+    {
+        /* Corrupted heap. */
+        gcmkASSERT(
+            Node->VidMem.offset + Node->VidMem.bytes == node->VidMem.offset);
+        return gcvSTATUS_HEAP_CORRUPTED;
+    }
+
+    /* Adjust byte count. */
+    Node->VidMem.bytes += node->VidMem.bytes;
+
+    /* Unlink next node from linked list. */
+    Node->VidMem.next     = node->VidMem.next;
+    Node->VidMem.nextFree = node->VidMem.nextFree;
+
+    Node->VidMem.next->VidMem.prev         =
+    Node->VidMem.nextFree->VidMem.prevFree = Node;
+
+    /* Free next node. */
+    status = gcmkOS_SAFE_FREE(Os, node);
+    return status;
+}
+
+/******************************************************************************\
+******************************* gckVIDMEM API Code ******************************
+\******************************************************************************/
+
+/*******************************************************************************
+**
+**  gckVIDMEM_ConstructVirtual
+**
+**  Construct a new gcuVIDMEM_NODE union for virtual memory.
+**
+**  INPUT:
+**
+**      gckKERNEL Kernel
+**          Pointer to an gckKERNEL object.
+**
+**      gctSIZE_T Bytes
+**          Number of byte to allocate.
+**
+**  OUTPUT:
+**
+**      gcuVIDMEM_NODE_PTR * Node
+**          Pointer to a variable that receives the gcuVIDMEM_NODE union pointer.
+*/
+gceSTATUS
+gckVIDMEM_ConstructVirtual(
+    IN gckKERNEL Kernel,
+    IN gctUINT32 Flag,
+    IN gctSIZE_T Bytes,
+    OUT gcuVIDMEM_NODE_PTR * Node
+    )
+{
+    gckOS os;
+    gceSTATUS status;
+    gcuVIDMEM_NODE_PTR node = gcvNULL;
+    gctPOINTER pointer = gcvNULL;
+    gctINT i;
+
+    gcmkHEADER_ARG("Kernel=0x%x Flag=%x Bytes=%lu", Kernel, Flag, Bytes);
+
+    /* Verify the arguments. */
+    gcmkVERIFY_OBJECT(Kernel, gcvOBJ_KERNEL);
+    gcmkVERIFY_ARGUMENT(Bytes > 0);
+    gcmkVERIFY_ARGUMENT(Node != gcvNULL);
+
+    /* Extract the gckOS object pointer. */
+    os = Kernel->os;
+    gcmkVERIFY_OBJECT(os, gcvOBJ_OS);
+
+    /* Allocate an gcuVIDMEM_NODE union. */
+    gcmkONERROR(gckOS_Allocate(os, gcmSIZEOF(gcuVIDMEM_NODE), &pointer));
+
+    node = pointer;
+
+    /* Initialize gcuVIDMEM_NODE union for virtual memory. */
+    node->Virtual.kernel        = Kernel;
+    node->Virtual.contiguous    = Flag & gcvALLOC_FLAG_CONTIGUOUS;
+    node->Virtual.logical       = gcvNULL;
+
+    for (i = 0; i < gcdMAX_GPU_COUNT; i++)
+    {
+        node->Virtual.lockeds[i]        = 0;
+        node->Virtual.pageTables[i]     = gcvNULL;
+        node->Virtual.lockKernels[i]    = gcvNULL;
+    }
+
+    gcmkONERROR(gckOS_GetProcessID(&node->Virtual.processID));
+
+    /* Allocate the virtual memory. */
+    gcmkONERROR(
+        gckOS_AllocatePagedMemoryEx(os,
+                                    Flag,
+                                    node->Virtual.bytes = Bytes,
+                                    &node->Virtual.gid,
+                                    &node->Virtual.physical));
+
+    /* Return pointer to the gcuVIDMEM_NODE union. */
+    *Node = node;
+
+    gcmkTRACE_ZONE(gcvLEVEL_INFO, gcvZONE_VIDMEM,
+                   "Created virtual node 0x%x for %u bytes @ 0x%x",
+                   node, Bytes, node->Virtual.physical);
+
+    /* Success. */
+    gcmkFOOTER_ARG("*Node=0x%x", *Node);
+    return gcvSTATUS_OK;
+
+OnError:
+    /* Roll back. */
+    if (node != gcvNULL)
+    {
+        /* Free the structure. */
+        gcmkVERIFY_OK(gcmkOS_SAFE_FREE(os, node));
+    }
+
+    /* Return the status. */
+    gcmkFOOTER();
+    return status;
+}
+
+/*******************************************************************************
+**
+**  gckVIDMEM_DestroyVirtual
+**
+**  Destroy an gcuVIDMEM_NODE union for virtual memory.
+**
+**  INPUT:
+**
+**      gcuVIDMEM_NODE_PTR Node
+**          Pointer to a gcuVIDMEM_NODE union.
+**
+**  OUTPUT:
+**
+**      Nothing.
+*/
+gceSTATUS
+gckVIDMEM_DestroyVirtual(
+    IN gcuVIDMEM_NODE_PTR Node
+    )
+{
+    gckOS os;
+
+    gcmkHEADER_ARG("Node=0x%x", Node);
+
+    /* Verify the arguments. */
+    gcmkVERIFY_OBJECT(Node->Virtual.kernel, gcvOBJ_KERNEL);
+
+    /* Extact the gckOS object pointer. */
+    os = Node->Virtual.kernel->os;
+    gcmkVERIFY_OBJECT(os, gcvOBJ_OS);
+
+    /* Delete the gcuVIDMEM_NODE union. */
+    gcmkVERIFY_OK(gcmkOS_SAFE_FREE(os, Node));
+
+    /* Success. */
+    gcmkFOOTER_NO();
+    return gcvSTATUS_OK;
+}
+
+/*******************************************************************************
+**
+**  gckVIDMEM_Construct
+**
+**  Construct a new gckVIDMEM object.
+**
+**  INPUT:
+**
+**      gckOS Os
+**          Pointer to an gckOS object.
+**
+**      gctUINT32 BaseAddress
+**          Base address for the video memory heap.
+**
+**      gctSIZE_T Bytes
+**          Number of bytes in the video memory heap.
+**
+**      gctSIZE_T Threshold
+**          Minimum number of bytes beyond am allocation before the node is
+**          split.  Can be used as a minimum alignment requirement.
+**
+**      gctSIZE_T BankSize
+**          Number of bytes per physical memory bank.  Used by bank
+**          optimization.
+**
+**  OUTPUT:
+**
+**      gckVIDMEM * Memory
+**          Pointer to a variable that will hold the pointer to the gckVIDMEM
+**          object.
+*/
+gceSTATUS
+gckVIDMEM_Construct(
+    IN gckOS Os,
+    IN gctUINT32 BaseAddress,
+    IN gctSIZE_T Bytes,
+    IN gctSIZE_T Threshold,
+    IN gctSIZE_T BankSize,
+    OUT gckVIDMEM * Memory
+    )
+{
+    gckVIDMEM memory = gcvNULL;
+    gceSTATUS status;
+    gcuVIDMEM_NODE_PTR node;
+    gctINT i, banks = 0;
+    gctPOINTER pointer = gcvNULL;
+    gctUINT32 heapBytes;
+    gctUINT32 bankSize;
+
+    gcmkHEADER_ARG("Os=0x%x BaseAddress=%08x Bytes=%lu Threshold=%lu "
+                   "BankSize=%lu",
+                   Os, BaseAddress, Bytes, Threshold, BankSize);
+
+    /* Verify the arguments. */
+    gcmkVERIFY_OBJECT(Os, gcvOBJ_OS);
+    gcmkVERIFY_ARGUMENT(Bytes > 0);
+    gcmkVERIFY_ARGUMENT(Memory != gcvNULL);
+
+    gcmkSAFECASTSIZET(heapBytes, Bytes);
+    gcmkSAFECASTSIZET(bankSize, BankSize);
+
+    /* Allocate the gckVIDMEM object. */
+    gcmkONERROR(gckOS_Allocate(Os, gcmSIZEOF(struct _gckVIDMEM), &pointer));
+
+    memory = pointer;
+
+    /* Initialize the gckVIDMEM object. */
+    memory->object.type = gcvOBJ_VIDMEM;
+    memory->os          = Os;
+
+    /* Set video memory heap information. */
+    memory->baseAddress = BaseAddress;
+    memory->bytes       = heapBytes;
+    memory->freeBytes   = heapBytes;
+    memory->threshold   = Threshold;
+    memory->mutex       = gcvNULL;
+
+    BaseAddress = 0;
+
+    /* Walk all possible banks. */
+    for (i = 0; i < gcmCOUNTOF(memory->sentinel); ++i)
+    {
+        gctUINT32 bytes;
+
+        if (BankSize == 0)
+        {
+            /* Use all bytes for the first bank. */
+            bytes = heapBytes;
+        }
+        else
+        {
+            /* Compute number of bytes for this bank. */
+            bytes = gcmALIGN(BaseAddress + 1, bankSize) - BaseAddress;
+
+            if (bytes > heapBytes)
+            {
+                /* Make sure we don't exceed the total number of bytes. */
+                bytes = heapBytes;
+            }
+        }
+
+        if (bytes == 0)
+        {
+            /* Mark heap is not used. */
+            memory->sentinel[i].VidMem.next     =
+            memory->sentinel[i].VidMem.prev     =
+            memory->sentinel[i].VidMem.nextFree =
+            memory->sentinel[i].VidMem.prevFree = gcvNULL;
+            continue;
+        }
+
+        /* Allocate one gcuVIDMEM_NODE union. */
+        gcmkONERROR(gckOS_Allocate(Os, gcmSIZEOF(gcuVIDMEM_NODE), &pointer));
+
+        node = pointer;
+
+        /* Initialize gcuVIDMEM_NODE union. */
+        node->VidMem.memory    = memory;
+
+        node->VidMem.next      =
+        node->VidMem.prev      =
+        node->VidMem.nextFree  =
+        node->VidMem.prevFree  = &memory->sentinel[i];
+
+        node->VidMem.offset    = BaseAddress;
+        node->VidMem.bytes     = bytes;
+        node->VidMem.alignment = 0;
+        node->VidMem.physical  = 0;
+        node->VidMem.pool      = gcvPOOL_UNKNOWN;
+
+        node->VidMem.locked    = 0;
+
+#ifdef __QNXNTO__
+        node->VidMem.processID = 0;
+        node->VidMem.logical   = gcvNULL;
+#endif
+
+
+        /* Initialize the linked list of nodes. */
+        memory->sentinel[i].VidMem.next     =
+        memory->sentinel[i].VidMem.prev     =
+        memory->sentinel[i].VidMem.nextFree =
+        memory->sentinel[i].VidMem.prevFree = node;
+
+        /* Mark sentinel. */
+        memory->sentinel[i].VidMem.bytes = 0;
+
+        /* Adjust address for next bank. */
+        BaseAddress += bytes;
+        heapBytes       -= bytes;
+        banks       ++;
+    }
+
+    /* Assign all the bank mappings. */
+    memory->mapping[gcvSURF_RENDER_TARGET]      = banks - 1;
+    memory->mapping[gcvSURF_BITMAP]             = banks - 1;
+    if (banks > 1) --banks;
+    memory->mapping[gcvSURF_DEPTH]              = banks - 1;
+    memory->mapping[gcvSURF_HIERARCHICAL_DEPTH] = banks - 1;
+    if (banks > 1) --banks;
+    memory->mapping[gcvSURF_TEXTURE]            = banks - 1;
+    if (banks > 1) --banks;
+    memory->mapping[gcvSURF_VERTEX]             = banks - 1;
+    if (banks > 1) --banks;
+    memory->mapping[gcvSURF_INDEX]              = banks - 1;
+    if (banks > 1) --banks;
+    memory->mapping[gcvSURF_TILE_STATUS]        = banks - 1;
+    if (banks > 1) --banks;
+    memory->mapping[gcvSURF_TYPE_UNKNOWN]       = 0;
+
+
+    gcmkTRACE_ZONE(gcvLEVEL_INFO, gcvZONE_VIDMEM,
+                  "[GALCORE] INDEX:         bank %d",
+                  memory->mapping[gcvSURF_INDEX]);
+    gcmkTRACE_ZONE(gcvLEVEL_INFO, gcvZONE_VIDMEM,
+                  "[GALCORE] VERTEX:        bank %d",
+                  memory->mapping[gcvSURF_VERTEX]);
+    gcmkTRACE_ZONE(gcvLEVEL_INFO, gcvZONE_VIDMEM,
+                  "[GALCORE] TEXTURE:       bank %d",
+                  memory->mapping[gcvSURF_TEXTURE]);
+    gcmkTRACE_ZONE(gcvLEVEL_INFO, gcvZONE_VIDMEM,
+                  "[GALCORE] RENDER_TARGET: bank %d",
+                  memory->mapping[gcvSURF_RENDER_TARGET]);
+    gcmkTRACE_ZONE(gcvLEVEL_INFO, gcvZONE_VIDMEM,
+                  "[GALCORE] DEPTH:         bank %d",
+                  memory->mapping[gcvSURF_DEPTH]);
+    gcmkTRACE_ZONE(gcvLEVEL_INFO, gcvZONE_VIDMEM,
+                  "[GALCORE] TILE_STATUS:   bank %d",
+                  memory->mapping[gcvSURF_TILE_STATUS]);
+
+    /* Allocate the mutex. */
+    gcmkONERROR(gckOS_CreateMutex(Os, &memory->mutex));
+
+    /* Return pointer to the gckVIDMEM object. */
+    *Memory = memory;
+
+    /* Success. */
+    gcmkFOOTER_ARG("*Memory=0x%x", *Memory);
+    return gcvSTATUS_OK;
+
+OnError:
+    /* Roll back. */
+    if (memory != gcvNULL)
+    {
+        if (memory->mutex != gcvNULL)
+        {
+            /* Delete the mutex. */
+            gcmkVERIFY_OK(gckOS_DeleteMutex(Os, memory->mutex));
+        }
+
+        for (i = 0; i < banks; ++i)
+        {
+            /* Free the heap. */
+            gcmkASSERT(memory->sentinel[i].VidMem.next != gcvNULL);
+            gcmkVERIFY_OK(gcmkOS_SAFE_FREE(Os, memory->sentinel[i].VidMem.next));
+        }
+
+        /* Free the object. */
+        gcmkVERIFY_OK(gcmkOS_SAFE_FREE(Os, memory));
+    }
+
+    /* Return the status. */
+    gcmkFOOTER();
+    return status;
+}
+
+/*******************************************************************************
+**
+**  gckVIDMEM_Destroy
+**
+**  Destroy an gckVIDMEM object.
+**
+**  INPUT:
+**
+**      gckVIDMEM Memory
+**          Pointer to an gckVIDMEM object to destroy.
+**
+**  OUTPUT:
+**
+**      Nothing.
+*/
+gceSTATUS
+gckVIDMEM_Destroy(
+    IN gckVIDMEM Memory
+    )
+{
+    gcuVIDMEM_NODE_PTR node, next;
+    gctINT i;
+
+    gcmkHEADER_ARG("Memory=0x%x", Memory);
+
+    /* Verify the arguments. */
+    gcmkVERIFY_OBJECT(Memory, gcvOBJ_VIDMEM);
+
+    /* Walk all sentinels. */
+    for (i = 0; i < gcmCOUNTOF(Memory->sentinel); ++i)
+    {
+        /* Bail out of the heap is not used. */
+        if (Memory->sentinel[i].VidMem.next == gcvNULL)
+        {
+            break;
+        }
+
+        /* Walk all the nodes until we reach the sentinel. */
+        for (node = Memory->sentinel[i].VidMem.next;
+             node->VidMem.bytes != 0;
+             node = next)
+        {
+            /* Save pointer to the next node. */
+            next = node->VidMem.next;
+
+            /* Free the node. */
+            gcmkVERIFY_OK(gcmkOS_SAFE_FREE(Memory->os, node));
+        }
+    }
+
+    /* Free the mutex. */
+    gcmkVERIFY_OK(gckOS_DeleteMutex(Memory->os, Memory->mutex));
+
+    /* Mark the object as unknown. */
+    Memory->object.type = gcvOBJ_UNKNOWN;
+
+    /* Free the gckVIDMEM object. */
+    gcmkVERIFY_OK(gcmkOS_SAFE_FREE(Memory->os, Memory));
+
+    /* Success. */
+    gcmkFOOTER_NO();
+    return gcvSTATUS_OK;
+}
+
+#if gcdENABLE_BANK_ALIGNMENT
+
+#if !gcdBANK_BIT_START
+#error gcdBANK_BIT_START not defined.
+#endif
+
+#if !gcdBANK_BIT_END
+#error gcdBANK_BIT_END not defined.
+#endif
+/*******************************************************************************
+**  _GetSurfaceBankAlignment
+**
+**  Return the required offset alignment required to the make BaseAddress
+**  aligned properly.
+**
+**  INPUT:
+**
+**      gckOS Os
+**          Pointer to gcoOS object.
+**
+**      gceSURF_TYPE Type
+**          Type of allocation.
+**
+**      gctUINT32 BaseAddress
+**          Base address of current video memory node.
+**
+**  OUTPUT:
+**
+**      gctUINT32_PTR AlignmentOffset
+**          Pointer to a variable that will hold the number of bytes to skip in
+**          the current video memory node in order to make the alignment bank
+**          aligned.
+*/
+static gceSTATUS
+_GetSurfaceBankAlignment(
+    IN gckKERNEL Kernel,
+    IN gceSURF_TYPE Type,
+    IN gctUINT32 BaseAddress,
+    OUT gctUINT32_PTR AlignmentOffset
+    )
+{
+    gctUINT32 bank;
+    /* To retrieve the bank. */
+    static const gctUINT32 bankMask = (0xFFFFFFFF << gcdBANK_BIT_START)
+                                    ^ (0xFFFFFFFF << (gcdBANK_BIT_END + 1));
+
+    /* To retrieve the bank and all the lower bytes. */
+    static const gctUINT32 byteMask = ~(0xFFFFFFFF << (gcdBANK_BIT_END + 1));
+
+    gcmkHEADER_ARG("Type=%d BaseAddress=0x%x ", Type, BaseAddress);
+
+    /* Verify the arguments. */
+    gcmkVERIFY_ARGUMENT(AlignmentOffset != gcvNULL);
+
+    switch (Type)
+    {
+    case gcvSURF_RENDER_TARGET:
+        bank = (BaseAddress & bankMask) >> (gcdBANK_BIT_START);
+
+        /* Align to the first bank. */
+        *AlignmentOffset = (bank == 0) ?
+            0 :
+            ((1 << (gcdBANK_BIT_END + 1)) + 0) -  (BaseAddress & byteMask);
+        break;
+
+    case gcvSURF_DEPTH:
+        bank = (BaseAddress & bankMask) >> (gcdBANK_BIT_START);
+
+        /* Align to the third bank. */
+        *AlignmentOffset = (bank == 2) ?
+            0 :
+            ((1 << (gcdBANK_BIT_END + 1)) + (2 << gcdBANK_BIT_START)) -  (BaseAddress & byteMask);
+
+        /* Minimum 256 byte alignment needed for fast_msaa. */
+        if ((gcdBANK_CHANNEL_BIT > 7) ||
+            ((gckHARDWARE_IsFeatureAvailable(Kernel->hardware, gcvFEATURE_FAST_MSAA) != gcvSTATUS_TRUE) &&
+             (gckHARDWARE_IsFeatureAvailable(Kernel->hardware, gcvFEATURE_SMALL_MSAA) != gcvSTATUS_TRUE)))
+        {
+            /* Add a channel offset at the channel bit. */
+            *AlignmentOffset += (1 << gcdBANK_CHANNEL_BIT);
+        }
+        break;
+
+    default:
+        /* no alignment needed. */
+        *AlignmentOffset = 0;
+    }
+
+    /* Return the status. */
+    gcmkFOOTER_ARG("*AlignmentOffset=%u", *AlignmentOffset);
+    return gcvSTATUS_OK;
+}
+#endif
+
+static gcuVIDMEM_NODE_PTR
+_FindNode(
+    IN gckKERNEL Kernel,
+    IN gckVIDMEM Memory,
+    IN gctINT Bank,
+    IN gctSIZE_T Bytes,
+    IN gceSURF_TYPE Type,
+    IN OUT gctUINT32_PTR Alignment
+    )
+{
+    gcuVIDMEM_NODE_PTR node;
+    gctUINT32 alignment;
+
+#if gcdENABLE_BANK_ALIGNMENT
+    gctUINT32 bankAlignment;
+    gceSTATUS status;
+#endif
+
+    if (Memory->sentinel[Bank].VidMem.nextFree == gcvNULL)
+    {
+        /* No free nodes left. */
+        return gcvNULL;
+    }
+
+#if gcdENABLE_BANK_ALIGNMENT
+    /* Walk all free nodes until we have one that is big enough or we have
+    ** reached the sentinel. */
+    for (node = Memory->sentinel[Bank].VidMem.nextFree;
+         node->VidMem.bytes != 0;
+         node = node->VidMem.nextFree)
+    {
+        if (node->VidMem.bytes < Bytes)
+        {
+            continue;
+        }
+
+        gcmkONERROR(_GetSurfaceBankAlignment(
+            Kernel,
+            Type,
+            node->VidMem.memory->baseAddress + node->VidMem.offset,
+            &bankAlignment));
+
+        bankAlignment = gcmALIGN(bankAlignment, *Alignment);
+
+        /* Compute number of bytes to skip for alignment. */
+        alignment = (*Alignment == 0)
+                  ? 0
+                  : (*Alignment - (node->VidMem.offset % *Alignment));
+
+        if (alignment == *Alignment)
+        {
+            /* Node is already aligned. */
+            alignment = 0;
+        }
+
+        if (node->VidMem.bytes >= Bytes + alignment + bankAlignment)
+        {
+            /* This node is big enough. */
+            *Alignment = alignment + bankAlignment;
+            return node;
+        }
+    }
+#endif
+
+    /* Walk all free nodes until we have one that is big enough or we have
+       reached the sentinel. */
+    for (node = Memory->sentinel[Bank].VidMem.nextFree;
+         node->VidMem.bytes != 0;
+         node = node->VidMem.nextFree)
+    {
+        gctUINT offset;
+
+        gctINT modulo;
+
+        gcmkSAFECASTSIZET(offset, node->VidMem.offset);
+
+        modulo = gckMATH_ModuloInt(offset, *Alignment);
+
+        /* Compute number of bytes to skip for alignment. */
+        alignment = (*Alignment == 0) ? 0 : (*Alignment - modulo);
+
+        if (alignment == *Alignment)
+        {
+            /* Node is already aligned. */
+            alignment = 0;
+        }
+
+        if (node->VidMem.bytes >= Bytes + alignment)
+        {
+            /* This node is big enough. */
+            *Alignment = alignment;
+            return node;
+        }
+    }
+
+#if gcdENABLE_BANK_ALIGNMENT
+OnError:
+#endif
+    /* Not enough memory. */
+    return gcvNULL;
+}
+
+/*******************************************************************************
+**
+**  gckVIDMEM_AllocateLinear
+**
+**  Allocate linear memory from the gckVIDMEM object.
+**
+**  INPUT:
+**
+**      gckVIDMEM Memory
+**          Pointer to an gckVIDMEM object.
+**
+**      gctSIZE_T Bytes
+**          Number of bytes to allocate.
+**
+**      gctUINT32 Alignment
+**          Byte alignment for allocation.
+**
+**      gceSURF_TYPE Type
+**          Type of surface to allocate (use by bank optimization).
+**
+**      gctBOOL Specified
+**          If user must use this pool, it should set Specified to gcvTRUE,
+**          otherwise allocator may reserve some memory for other usage, such
+**          as small block size allocation request.
+**
+**  OUTPUT:
+**
+**      gcuVIDMEM_NODE_PTR * Node
+**          Pointer to a variable that will hold the allocated memory node.
+*/
+gceSTATUS
+gckVIDMEM_AllocateLinear(
+    IN gckKERNEL Kernel,
+    IN gckVIDMEM Memory,
+    IN gctSIZE_T Bytes,
+    IN gctUINT32 Alignment,
+    IN gceSURF_TYPE Type,
+    IN gctBOOL Specified,
+    OUT gcuVIDMEM_NODE_PTR * Node
+    )
+{
+    gceSTATUS status;
+    gcuVIDMEM_NODE_PTR node;
+    gctUINT32 alignment;
+    gctINT bank, i;
+    gctBOOL acquired = gcvFALSE;
+
+    gcmkHEADER_ARG("Memory=0x%x Bytes=%lu Alignment=%u Type=%d",
+                   Memory, Bytes, Alignment, Type);
+
+    /* Verify the arguments. */
+    gcmkVERIFY_OBJECT(Memory, gcvOBJ_VIDMEM);
+    gcmkVERIFY_ARGUMENT(Bytes > 0);
+    gcmkVERIFY_ARGUMENT(Node != gcvNULL);
+    gcmkVERIFY_ARGUMENT(Type < gcvSURF_NUM_TYPES);
+
+    /* Acquire the mutex. */
+    gcmkONERROR(gckOS_AcquireMutex(Memory->os, Memory->mutex, gcvINFINITE));
+
+    acquired = gcvTRUE;
+
+    if (Bytes > Memory->freeBytes)
+    {
+        /* Not enough memory. */
+        status = gcvSTATUS_OUT_OF_MEMORY;
+        goto OnError;
+    }
+
+#if gcdSMALL_BLOCK_SIZE
+    if ((Memory->freeBytes < (Memory->bytes/gcdRATIO_FOR_SMALL_MEMORY))
+    &&  (Bytes >= gcdSMALL_BLOCK_SIZE)
+    &&  (Specified == gcvFALSE)
+    )
+    {
+        /* The left memory is for small memory.*/
+        status = gcvSTATUS_OUT_OF_MEMORY;
+        goto OnError;
+    }
+#endif
+
+    /* Find the default bank for this surface type. */
+    gcmkASSERT((gctINT) Type < gcmCOUNTOF(Memory->mapping));
+    bank      = Memory->mapping[Type];
+    alignment = Alignment;
+
+    /* Find a free node in the default bank. */
+    node = _FindNode(Kernel, Memory, bank, Bytes, Type, &alignment);
+
+    /* Out of memory? */
+    if (node == gcvNULL)
+    {
+        /* Walk all lower banks. */
+        for (i = bank - 1; i >= 0; --i)
+        {
+            /* Find a free node inside the current bank. */
+            node = _FindNode(Kernel, Memory, i, Bytes, Type, &alignment);
+            if (node != gcvNULL)
+            {
+                break;
+            }
+        }
+    }
+
+    if (node == gcvNULL)
+    {
+        /* Walk all upper banks. */
+        for (i = bank + 1; i < gcmCOUNTOF(Memory->sentinel); ++i)
+        {
+            if (Memory->sentinel[i].VidMem.nextFree == gcvNULL)
+            {
+                /* Abort when we reach unused banks. */
+                break;
+            }
+
+            /* Find a free node inside the current bank. */
+            node = _FindNode(Kernel, Memory, i, Bytes, Type, &alignment);
+            if (node != gcvNULL)
+            {
+                break;
+            }
+        }
+    }
+
+    if (node == gcvNULL)
+    {
+        /* Out of memory. */
+        status = gcvSTATUS_OUT_OF_MEMORY;
+        goto OnError;
+    }
+
+    /* Do we have an alignment? */
+    if (alignment > 0)
+    {
+        /* Split the node so it is aligned. */
+        if (_Split(Memory->os, node, alignment))
+        {
+            /* Successful split, move to aligned node. */
+            node = node->VidMem.next;
+
+            /* Remove alignment. */
+            alignment = 0;
+        }
+    }
+
+    /* Do we have enough memory after the allocation to split it? */
+    if (node->VidMem.bytes - Bytes > Memory->threshold)
+    {
+        /* Adjust the node size. */
+        _Split(Memory->os, node, Bytes);
+    }
+
+    /* Remove the node from the free list. */
+    node->VidMem.prevFree->VidMem.nextFree = node->VidMem.nextFree;
+    node->VidMem.nextFree->VidMem.prevFree = node->VidMem.prevFree;
+    node->VidMem.nextFree                  =
+    node->VidMem.prevFree                  = gcvNULL;
+
+    /* Fill in the information. */
+    node->VidMem.alignment = alignment;
+    node->VidMem.memory    = Memory;
+#ifdef __QNXNTO__
+    node->VidMem.logical   = gcvNULL;
+    gcmkONERROR(gckOS_GetProcessID(&node->VidMem.processID));
+#endif
+
+    /* Adjust the number of free bytes. */
+    Memory->freeBytes -= node->VidMem.bytes;
+
+
+    /* Release the mutex. */
+    gcmkVERIFY_OK(gckOS_ReleaseMutex(Memory->os, Memory->mutex));
+
+    /* Return the pointer to the node. */
+    *Node = node;
+
+    gcmkTRACE_ZONE(gcvLEVEL_INFO, gcvZONE_VIDMEM,
+                   "Allocated %u bytes @ 0x%x [0x%08X]",
+                   node->VidMem.bytes, node, node->VidMem.offset);
+
+    /* Success. */
+    gcmkFOOTER_ARG("*Node=0x%x", *Node);
+    return gcvSTATUS_OK;
+
+OnError:
+    if (acquired)
+    {
+     /* Release the mutex. */
+        gcmkVERIFY_OK(gckOS_ReleaseMutex(Memory->os, Memory->mutex));
+    }
+
+    /* Return the status. */
+    gcmkFOOTER();
+    return status;
+}
+
+/*******************************************************************************
+**
+**  gckVIDMEM_Free
+**
+**  Free an allocated video memory node.
+**
+**  INPUT:
+**
+**      gckKERNEL Kernel
+**          Pointer to an gckKERNEL object.
+**
+**      gcuVIDMEM_NODE_PTR Node
+**          Pointer to a gcuVIDMEM_NODE object.
+**
+**  OUTPUT:
+**
+**      Nothing.
+*/
+gceSTATUS
+gckVIDMEM_Free(
+    IN gckKERNEL Kernel,
+    IN gcuVIDMEM_NODE_PTR Node
+    )
+{
+    gceSTATUS status;
+    gckKERNEL kernel = gcvNULL;
+    gckVIDMEM memory = gcvNULL;
+    gcuVIDMEM_NODE_PTR node;
+    gctBOOL mutexAcquired = gcvFALSE;
+
+    gcmkHEADER_ARG("Node=0x%x", Node);
+
+    /* Verify the arguments. */
+    if ((Node == gcvNULL)
+    ||  (Node->VidMem.memory == gcvNULL)
+    )
+    {
+        /* Invalid object. */
+        gcmkONERROR(gcvSTATUS_INVALID_OBJECT);
+    }
+
+    /**************************** Video Memory ********************************/
+
+    if (Node->VidMem.memory->object.type == gcvOBJ_VIDMEM)
+    {
+        /* Extract pointer to gckVIDMEM object owning the node. */
+        memory = Node->VidMem.memory;
+
+        /* Acquire the mutex. */
+        gcmkONERROR(
+            gckOS_AcquireMutex(memory->os, memory->mutex, gcvINFINITE));
+
+        mutexAcquired = gcvTRUE;
+
+#ifdef __QNXNTO__
+        /* Unmap the video memory. */
+        if (Node->VidMem.logical != gcvNULL)
+        {
+            gckKERNEL_UnmapVideoMemory(
+                    Kernel,
+                    Node->VidMem.logical,
+                    Node->VidMem.processID,
+                    Node->VidMem.bytes);
+            Node->VidMem.logical = gcvNULL;
+        }
+
+        /* Reset. */
+        Node->VidMem.processID = 0;
+
+        /* Don't try to re-free an already freed node. */
+        if ((Node->VidMem.nextFree == gcvNULL)
+        &&  (Node->VidMem.prevFree == gcvNULL)
+        )
+#endif
+        {
+
+            /* Check if Node is already freed. */
+            if (Node->VidMem.nextFree)
+            {
+                /* Node is alread freed. */
+                gcmkONERROR(gcvSTATUS_INVALID_DATA);
+            }
+
+            /* Update the number of free bytes. */
+            memory->freeBytes += Node->VidMem.bytes;
+
+            /* Find the next free node. */
+            for (node = Node->VidMem.next;
+                 node != gcvNULL && node->VidMem.nextFree == gcvNULL;
+                 node = node->VidMem.next) ;
+
+            /* Insert this node in the free list. */
+            Node->VidMem.nextFree = node;
+            Node->VidMem.prevFree = node->VidMem.prevFree;
+
+            Node->VidMem.prevFree->VidMem.nextFree =
+            node->VidMem.prevFree                  = Node;
+
+            /* Is the next node a free node and not the sentinel? */
+            if ((Node->VidMem.next == Node->VidMem.nextFree)
+            &&  (Node->VidMem.next->VidMem.bytes != 0)
+            )
+            {
+                /* Merge this node with the next node. */
+                gcmkONERROR(_Merge(memory->os, node = Node));
+                gcmkASSERT(node->VidMem.nextFree != node);
+                gcmkASSERT(node->VidMem.prevFree != node);
+            }
+
+            /* Is the previous node a free node and not the sentinel? */
+            if ((Node->VidMem.prev == Node->VidMem.prevFree)
+            &&  (Node->VidMem.prev->VidMem.bytes != 0)
+            )
+            {
+                /* Merge this node with the previous node. */
+                gcmkONERROR(_Merge(memory->os, node = Node->VidMem.prev));
+                gcmkASSERT(node->VidMem.nextFree != node);
+                gcmkASSERT(node->VidMem.prevFree != node);
+            }
+        }
+
+        /* Release the mutex. */
+        gcmkVERIFY_OK(gckOS_ReleaseMutex(memory->os, memory->mutex));
+
+        gcmkTRACE_ZONE(gcvLEVEL_INFO, gcvZONE_VIDMEM,
+                       "Node 0x%x is freed.",
+                       Node);
+
+        /* Success. */
+        gcmkFOOTER_NO();
+        return gcvSTATUS_OK;
+    }
+
+    /*************************** Virtual Memory *******************************/
+
+    /* Get gckKERNEL object. */
+    kernel = Node->Virtual.kernel;
+
+    /* Verify the gckKERNEL object pointer. */
+    gcmkVERIFY_OBJECT(kernel, gcvOBJ_KERNEL);
+
+
+    /* Free the virtual memory. */
+    gcmkVERIFY_OK(gckOS_FreePagedMemory(kernel->os,
+                                        Node->Virtual.physical,
+                                        Node->Virtual.bytes));
+
+    /* Destroy the gcuVIDMEM_NODE union. */
+    gcmkVERIFY_OK(gckVIDMEM_DestroyVirtual(Node));
+
+    /* Success. */
+    gcmkFOOTER_NO();
+    return gcvSTATUS_OK;
+
+OnError:
+    if (mutexAcquired)
+    {
+        /* Release the mutex. */
+        gcmkVERIFY_OK(gckOS_ReleaseMutex(
+            memory->os, memory->mutex
+            ));
+    }
+
+    /* Return the status. */
+    gcmkFOOTER();
+    return status;
+}
+
+#if !gcdPROCESS_ADDRESS_SPACE
+/*******************************************************************************
+**
+** _NeedVirtualMapping
+**
+**  Whether setup GPU page table for video node.
+**
+**  INPUT:
+**      gckKERNEL Kernel
+**          Pointer to an gckKERNEL object.
+**
+**      gcuVIDMEM_NODE_PTR Node
+**          Pointer to a gcuVIDMEM_NODE union.
+**
+**      gceCORE  Core
+**          Id of current GPU.
+**
+**  OUTPUT:
+**      gctBOOL * NeedMapping
+**          A pointer hold the result whether Node should be mapping.
+*/
+static gceSTATUS
+_NeedVirtualMapping(
+    IN gckKERNEL Kernel,
+    IN gceCORE  Core,
+    IN gcuVIDMEM_NODE_PTR Node,
+    OUT gctBOOL * NeedMapping
+)
+{
+    gceSTATUS status;
+    gctPHYS_ADDR_T phys;
+    gctUINT32 address;
+    gctUINT32 end;
+    gcePOOL pool;
+    gctUINT32 offset;
+    gctUINT32 baseAddress;
+    gctUINT32 bytes;
+
+    gcmkHEADER_ARG("Node=0x%X", Node);
+
+    /* Verify the arguments. */
+    gcmkVERIFY_ARGUMENT(Kernel != gcvNULL);
+    gcmkVERIFY_ARGUMENT(Node != gcvNULL);
+    gcmkVERIFY_ARGUMENT(NeedMapping != gcvNULL);
+    gcmkVERIFY_ARGUMENT(Core < gcdMAX_GPU_COUNT);
+
+    if (Node->Virtual.contiguous)
+    {
+        if (!gckHARDWARE_IsFeatureAvailable(Kernel->hardware, gcvFEATURE_MMU))
+        {
+            /* Convert logical address into a physical address. */
+            gcmkONERROR(gckOS_UserLogicalToPhysical(
+                        Kernel->os, Node->Virtual.logical, &phys
+                        ));
+
+            gcmkSAFECASTPHYSADDRT(address, phys);
+
+            gcmkONERROR(gckOS_GetBaseAddress(Kernel->os, &baseAddress));
+
+            gcmkASSERT(phys >= baseAddress);
+
+            /* Subtract baseAddress to get a GPU address used for programming. */
+            address -= baseAddress;
+
+            /* If part of region is belong to gcvPOOL_VIRTUAL,
+            ** whole region has to be mapped. */
+            gcmkSAFECASTSIZET(bytes, Node->Virtual.bytes);
+            end = address + bytes - 1;
+
+            gcmkONERROR(gckHARDWARE_SplitMemory(
+                        Kernel->hardware, end, &pool, &offset
+                        ));
+
+            *NeedMapping = (pool == gcvPOOL_VIRTUAL);
+        }
+        else
+        {
+            /* TODO: Check whether physical address in flat mapping. */
+            *NeedMapping = gcvTRUE;
+        }
+    }
+    else
+    {
+        *NeedMapping = gcvTRUE;
+    }
+
+    gcmkFOOTER_ARG("*NeedMapping=%d", *NeedMapping);
+    return gcvSTATUS_OK;
+
+OnError:
+    gcmkFOOTER();
+    return status;
+}
+#endif
+
+#if gcdPROCESS_ADDRESS_SPACE
+gcsGPU_MAP_PTR
+_FindGPUMap(
+    IN gcsGPU_MAP_PTR Head,
+    IN gctINT ProcessID
+    )
+{
+    gcsGPU_MAP_PTR map = Head;
+
+    while (map)
+    {
+        if (map->pid == ProcessID)
+        {
+            return map;
+        }
+
+        map = map->next;
+    }
+
+    return gcvNULL;
+}
+
+gcsGPU_MAP_PTR
+_CreateGPUMap(
+    IN gckOS Os,
+    IN gcsGPU_MAP_PTR *Head,
+    IN gcsGPU_MAP_PTR *Tail,
+    IN gctINT ProcessID
+    )
+{
+    gcsGPU_MAP_PTR gpuMap;
+    gctPOINTER pointer = gcvNULL;
+
+    gckOS_Allocate(Os, sizeof(gcsGPU_MAP), &pointer);
+
+    if (pointer == gcvNULL)
+    {
+        return gcvNULL;
+    }
+
+    gpuMap = pointer;
+
+    gckOS_ZeroMemory(pointer, sizeof(gcsGPU_MAP));
+
+    gpuMap->pid = ProcessID;
+
+    if (!*Head)
+    {
+        *Head = *Tail = gpuMap;
+    }
+    else
+    {
+        gpuMap->prev = *Tail;
+        (*Tail)->next = gpuMap;
+        *Tail = gpuMap;
+    }
+
+    return gpuMap;
+}
+
+void
+_DestroyGPUMap(
+    IN gckOS Os,
+    IN gcsGPU_MAP_PTR *Head,
+    IN gcsGPU_MAP_PTR *Tail,
+    IN gcsGPU_MAP_PTR gpuMap
+    )
+{
+
+    if (gpuMap == *Head)
+    {
+        if ((*Head = gpuMap->next) == gcvNULL)
+        {
+            *Tail = gcvNULL;
+        }
+    }
+    else
+    {
+        gpuMap->prev->next = gpuMap->next;
+        if (gpuMap == *Tail)
+        {
+            *Tail = gpuMap->prev;
+        }
+        else
+        {
+            gpuMap->next->prev = gpuMap->prev;
+        }
+    }
+
+    gcmkOS_SAFE_FREE(Os, gpuMap);
+}
+#endif
+
+/*******************************************************************************
+**
+**  gckVIDMEM_Lock
+**
+**  Lock a video memory node and return its hardware specific address.
+**
+**  INPUT:
+**
+**      gckKERNEL Kernel
+**          Pointer to an gckKERNEL object.
+**
+**      gcuVIDMEM_NODE_PTR Node
+**          Pointer to a gcuVIDMEM_NODE union.
+**
+**  OUTPUT:
+**
+**      gctUINT32 * Address
+**          Pointer to a variable that will hold the hardware specific address.
+**
+**      gctUINT32 * PhysicalAddress
+**          Pointer to a variable that will hold the bus address of a contiguous
+**          video node.
+*/
+gceSTATUS
+gckVIDMEM_Lock(
+    IN gckKERNEL Kernel,
+    IN gckVIDMEM_NODE Node,
+    IN gctBOOL Cacheable,
+    OUT gctUINT32 * Address,
+    OUT gctUINT32 * Gid,
+    OUT gctUINT64 * PhysicalAddress
+    )
+{
+    gceSTATUS status;
+    gctBOOL acquired = gcvFALSE;
+    gctBOOL locked = gcvFALSE;
+    gckOS os = gcvNULL;
+#if !gcdPROCESS_ADDRESS_SPACE
+    gctBOOL needMapping = gcvFALSE;
+#endif
+    gctUINT32 baseAddress;
+    gctUINT64 physicalAddress;
+    gcuVIDMEM_NODE_PTR node = Node->node;
+    gctPHYS_ADDR_T physical;
+
+    gcmkHEADER_ARG("Node=0x%x", Node);
+
+    /* Verify the arguments. */
+    gcmkVERIFY_ARGUMENT(Address != gcvNULL);
+    gcmkVERIFY_OBJECT(Kernel, gcvOBJ_KERNEL);
+
+    /* Extract the gckOS object pointer. */
+    os = Kernel->os;
+    gcmkVERIFY_OBJECT(os, gcvOBJ_OS);
+
+    if ((node == gcvNULL)
+    ||  (node->VidMem.memory == gcvNULL)
+    )
+    {
+        /* Invalid object. */
+        gcmkONERROR(gcvSTATUS_INVALID_OBJECT);
+    }
+
+    /* Grab the mutex. */
+    gcmkONERROR(gckOS_AcquireMutex(os, Node->mutex, gcvINFINITE));
+    acquired = gcvTRUE;
+
+    /**************************** Video Memory ********************************/
+
+    if (node->VidMem.memory->object.type == gcvOBJ_VIDMEM)
+    {
+        gctUINT32 offset;
+
+        if (Cacheable == gcvTRUE)
+        {
+            gcmkONERROR(gcvSTATUS_INVALID_REQUEST);
+        }
+
+        /* Increment the lock count. */
+        node->VidMem.locked ++;
+
+        /* Return the physical address of the node. */
+        gcmkSAFECASTSIZET(offset, node->VidMem.offset);
+
+        *Address = node->VidMem.memory->baseAddress
+                 + offset
+                 + node->VidMem.alignment;
+
+        physicalAddress = *Address;
+
+        /* Get hardware specific address. */
+        {
+            if (Kernel->hardware->mmuVersion == 0)
+            {
+                /* Convert physical to GPU address for old mmu. */
+                gcmkONERROR(gckOS_GetBaseAddress(Kernel->os, &baseAddress));
+                gcmkASSERT(*Address > baseAddress);
+                *Address -= baseAddress;
+            }
+        }
+
+        gcmkVERIFY_OK(gckOS_CPUPhysicalToGPUPhysical(
+            Kernel->os,
+            *Address,
+            &physical
+            ));
+
+        gcmkSAFECASTSIZET(*Address, physical);
+
+        gcmkTRACE_ZONE(gcvLEVEL_INFO, gcvZONE_VIDMEM,
+                      "Locked node 0x%x (%d) @ 0x%08X",
+                      node,
+                      node->VidMem.locked,
+                      *Address);
+    }
+
+    /*************************** Virtual Memory *******************************/
+
+    else
+    {
+
+        *Gid = node->Virtual.gid;
+
+#if gcdPAGED_MEMORY_CACHEABLE
+        /* Force video memory cacheable. */
+        Cacheable = gcvTRUE;
+#endif
+
+        gcmkONERROR(
+            gckOS_LockPages(os,
+                            node->Virtual.physical,
+                            node->Virtual.bytes,
+                            Cacheable,
+                            &node->Virtual.logical,
+                            &node->Virtual.pageCount));
+
+        gcmkONERROR(gckOS_UserLogicalToPhysical(
+            os,
+            node->Virtual.logical,
+            &physicalAddress
+            ));
+
+
+#if !gcdPROCESS_ADDRESS_SPACE
+        /* Increment the lock count. */
+        if (node->Virtual.lockeds[Kernel->core] ++ == 0)
+        {
+            locked = gcvTRUE;
+
+            gcmkONERROR(_NeedVirtualMapping(Kernel, Kernel->core, node, &needMapping));
+
+            if (needMapping == gcvFALSE)
+            {
+                /* Get hardware specific address. */
+                {
+                    gcmkONERROR(gckHARDWARE_ConvertLogical(
+                                Kernel->hardware,
+                                node->Virtual.logical,
+                                gcvTRUE,
+                                &node->Virtual.addresses[Kernel->core]));
+                }
+            }
+            else
+            {
+                {
+                    /* Allocate pages inside the MMU. */
+                    gcmkONERROR(
+                        gckMMU_AllocatePagesEx(Kernel->mmu,
+                                             node->Virtual.pageCount,
+                                             node->Virtual.type,
+                                             &node->Virtual.pageTables[Kernel->core],
+                                             &node->Virtual.addresses[Kernel->core]));
+                }
+
+                node->Virtual.lockKernels[Kernel->core] = Kernel;
+
+                /* Map the pages. */
+                gcmkONERROR(
+                    gckOS_MapPagesEx(os,
+                                     Kernel->core,
+                                     node->Virtual.physical,
+                                     node->Virtual.pageCount,
+                                     node->Virtual.addresses[Kernel->core],
+                                     node->Virtual.pageTables[Kernel->core]));
+
+                {
+                    gcmkONERROR(gckMMU_Flush(Kernel->mmu, node->Virtual.type));
+                }
+            }
+            gcmkTRACE_ZONE(gcvLEVEL_INFO, gcvZONE_VIDMEM,
+                           "Mapped virtual node 0x%x to 0x%08X",
+                           node,
+                           node->Virtual.addresses[Kernel->core]);
+        }
+
+        /* Return hardware address. */
+        *Address = node->Virtual.addresses[Kernel->core];
+#endif
+    }
+
+    /* Release the mutex. */
+    gcmkVERIFY_OK(gckOS_ReleaseMutex(os, Node->mutex));
+
+    *PhysicalAddress = (gctUINT64)physicalAddress;
+
+    /* Success. */
+    gcmkFOOTER_ARG("*Address=%08x", *Address);
+    return gcvSTATUS_OK;
+
+OnError:
+    if (locked)
+    {
+        if (node->Virtual.pageTables[Kernel->core] != gcvNULL)
+        {
+            {
+                /* Free the pages from the MMU. */
+                gcmkVERIFY_OK(
+                    gckMMU_FreePages(Kernel->mmu,
+                                     node->Virtual.pageTables[Kernel->core],
+                                     node->Virtual.pageCount));
+            }
+            node->Virtual.pageTables[Kernel->core]  = gcvNULL;
+            node->Virtual.lockKernels[Kernel->core] = gcvNULL;
+        }
+
+        /* Unlock the pages. */
+        gcmkVERIFY_OK(
+            gckOS_UnlockPages(os,
+                              node->Virtual.physical,
+                              node->Virtual.bytes,
+                              node->Virtual.logical
+                              ));
+
+        node->Virtual.lockeds[Kernel->core]--;
+    }
+
+    if (acquired)
+    {
+        /* Release the mutex. */
+        gcmkVERIFY_OK(gckOS_ReleaseMutex(os, Node->mutex));
+    }
+
+    /* Return the status. */
+    gcmkFOOTER();
+    return status;
+}
+
+/*******************************************************************************
+**
+**  gckVIDMEM_Unlock
+**
+**  Unlock a video memory node.
+**
+**  INPUT:
+**
+**      gckKERNEL Kernel
+**          Pointer to an gckKERNEL object.
+**
+**      gcuVIDMEM_NODE_PTR Node
+**          Pointer to a locked gcuVIDMEM_NODE union.
+**
+**      gceSURF_TYPE Type
+**          Type of surface to unlock.
+**
+**      gctBOOL * Asynchroneous
+**          Pointer to a variable specifying whether the surface should be
+**          unlocked asynchroneously or not.
+**
+**  OUTPUT:
+**
+**      gctBOOL * Asynchroneous
+**          Pointer to a variable receiving the number of bytes used in the
+**          command buffer specified by 'Commands'.  If gcvNULL, there is no
+**          command buffer.
+*/
+gceSTATUS
+gckVIDMEM_Unlock(
+    IN gckKERNEL Kernel,
+    IN gckVIDMEM_NODE Node,
+    IN gceSURF_TYPE Type,
+    IN OUT gctBOOL * Asynchroneous
+    )
+{
+    gceSTATUS status;
+    gckOS os = gcvNULL;
+    gctBOOL acquired = gcvFALSE;
+    gcuVIDMEM_NODE_PTR node = Node->node;
+
+    gcmkHEADER_ARG("Node=0x%x Type=%d *Asynchroneous=%d",
+                   Node, Type, gcmOPT_VALUE(Asynchroneous));
+
+    gcmkVERIFY_OBJECT(Kernel, gcvOBJ_KERNEL);
+
+    /* Get the gckOS object pointer. */
+    os = Kernel->os;
+    gcmkVERIFY_OBJECT(os, gcvOBJ_OS);
+
+    /* Verify the arguments. */
+    if ((node == gcvNULL)
+    ||  (node->VidMem.memory == gcvNULL)
+    )
+    {
+        /* Invalid object. */
+        gcmkONERROR(gcvSTATUS_INVALID_OBJECT);
+    }
+
+    /* Grab the mutex. */
+    gcmkONERROR(gckOS_AcquireMutex(os, Node->mutex, gcvINFINITE));
+    acquired = gcvTRUE;
+
+    /**************************** Video Memory ********************************/
+
+    if (node->VidMem.memory->object.type == gcvOBJ_VIDMEM)
+    {
+        if (node->VidMem.locked <= 0)
+        {
+            /* The surface was not locked. */
+            status = gcvSTATUS_MEMORY_UNLOCKED;
+            goto OnError;
+        }
+
+        if (Asynchroneous != gcvNULL)
+        {
+            /* Schedule an event to sync with GPU. */
+            *Asynchroneous = gcvTRUE;
+        }
+        else
+        {
+            /* Decrement the lock count. */
+            node->VidMem.locked --;
+        }
+
+        gcmkTRACE_ZONE(gcvLEVEL_INFO, gcvZONE_VIDMEM,
+                      "Unlocked node 0x%x (%d)",
+                      node,
+                      node->VidMem.locked);
+    }
+
+    /*************************** Virtual Memory *******************************/
+
+    else
+    {
+
+
+        if (Asynchroneous == gcvNULL)
+        {
+#if !gcdPROCESS_ADDRESS_SPACE
+            if (node->Virtual.lockeds[Kernel->core] == 0)
+            {
+                status = gcvSTATUS_MEMORY_UNLOCKED;
+                goto OnError;
+            }
+
+            /* Decrement lock count. */
+            -- node->Virtual.lockeds[Kernel->core];
+
+            /* See if we can unlock the resources. */
+            if (node->Virtual.lockeds[Kernel->core] == 0)
+            {
+                /* Free the page table. */
+                if (node->Virtual.pageTables[Kernel->core] != gcvNULL)
+                {
+                    {
+                        gcmkONERROR(
+                            gckMMU_FreePages(Kernel->mmu,
+                                             node->Virtual.pageTables[Kernel->core],
+                                             node->Virtual.pageCount));
+                    }
+
+                    gcmkONERROR(gckOS_UnmapPages(
+                        Kernel->os,
+                        node->Virtual.pageCount,
+                        node->Virtual.addresses[Kernel->core]
+                        ));
+
+                    /* Mark page table as freed. */
+                    node->Virtual.pageTables[Kernel->core] = gcvNULL;
+                    node->Virtual.lockKernels[Kernel->core] = gcvNULL;
+                }
+            }
+
+            gcmkTRACE_ZONE(gcvLEVEL_INFO, gcvZONE_VIDMEM,
+                           "Unmapped virtual node 0x%x from 0x%08X",
+                           node, node->Virtual.addresses[Kernel->core]);
+#endif
+
+        }
+
+        else
+        {
+            gcmkONERROR(
+                gckOS_UnlockPages(os,
+                              node->Virtual.physical,
+                              node->Virtual.bytes,
+                              node->Virtual.logical));
+
+            gcmkTRACE_ZONE(gcvLEVEL_INFO, gcvZONE_VIDMEM,
+                           "Scheduled unlock for virtual node 0x%x",
+                           node);
+
+            /* Schedule the surface to be unlocked. */
+            *Asynchroneous = gcvTRUE;
+        }
+    }
+
+    /* Release the mutex. */
+    gcmkVERIFY_OK(gckOS_ReleaseMutex(os, Node->mutex));
+    acquired = gcvFALSE;
+
+    /* Success. */
+    gcmkFOOTER_ARG("*Asynchroneous=%d", gcmOPT_VALUE(Asynchroneous));
+    return gcvSTATUS_OK;
+
+OnError:
+    if (acquired)
+    {
+        /* Release the mutex. */
+        gcmkVERIFY_OK(gckOS_ReleaseMutex(os, Node->mutex));
+    }
+
+    /* Return the status. */
+    gcmkFOOTER();
+    return status;
+}
+
+#if gcdPROCESS_ADDRESS_SPACE
+gceSTATUS
+gckVIDMEM_Node_Lock(
+    IN gckKERNEL Kernel,
+    IN gckVIDMEM_NODE Node,
+    OUT gctUINT32 *Address
+    )
+{
+    gceSTATUS           status;
+    gckOS               os;
+    gcuVIDMEM_NODE_PTR  node = Node->node;
+    gcsGPU_MAP_PTR      gpuMap;
+    gctPHYS_ADDR        physical = gcvNULL;
+    gctUINT32           phys = gcvINVALID_ADDRESS;
+    gctUINT32           processID;
+    gcsLOCK_INFO_PTR    lockInfo;
+    gctUINT32           pageCount;
+    gckMMU              mmu;
+    gctUINT32           i;
+    gctUINT32_PTR       pageTableEntry;
+    gctUINT32           offset = 0;
+    gctBOOL             acquired = gcvFALSE;
+
+    gcmkHEADER_ARG("Node = %x", Node);
+
+    gcmkVERIFY_OBJECT(Kernel, gcvOBJ_KERNEL);
+    gcmkVERIFY_ARGUMENT(Node != gcvNULL);
+    gcmkVERIFY_ARGUMENT(Address != gcvNULL);
+
+    os = Kernel->os;
+    gcmkVERIFY_OBJECT(os, gcvOBJ_OS);
+
+    gcmkONERROR(gckOS_GetProcessID(&processID));
+
+    gcmkONERROR(gckKERNEL_GetProcessMMU(Kernel, &mmu));
+
+    gcmkONERROR(gckOS_AcquireMutex(os, Node->mapMutex, gcvINFINITE));
+    acquired = gcvTRUE;
+
+    /* Get map information for current process. */
+    gpuMap = _FindGPUMap(Node->mapHead, processID);
+
+    if (gpuMap == gcvNULL)
+    {
+        gpuMap = _CreateGPUMap(os, &Node->mapHead, &Node->mapTail, processID);
+
+        if (gpuMap == gcvNULL)
+        {
+            gcmkONERROR(gcvSTATUS_OUT_OF_MEMORY);
+        }
+    }
+
+    lockInfo = &gpuMap->lockInfo;
+
+    if (lockInfo->lockeds[Kernel->core] ++ == 0)
+    {
+        /* Get necessary information. */
+        if (node->VidMem.memory->object.type == gcvOBJ_VIDMEM)
+        {
+            phys = node->VidMem.memory->baseAddress
+                 + node->VidMem.offset
+                 + node->VidMem.alignment;
+
+            /* GPU page table use 4K page. */
+            pageCount = ((phys + node->VidMem.bytes + 4096 - 1) >> 12)
+                      - (phys >> 12);
+
+            offset = phys & 0xFFF;
+        }
+        else
+        {
+            pageCount = node->Virtual.pageCount;
+            physical = node->Virtual.physical;
+        }
+
+        /* Allocate pages inside the MMU. */
+        gcmkONERROR(gckMMU_AllocatePages(
+            mmu,
+            pageCount,
+            &lockInfo->pageTables[Kernel->core],
+            &lockInfo->GPUAddresses[Kernel->core]));
+
+        /* Record MMU from which pages are allocated.  */
+        lockInfo->lockMmus[Kernel->core] = mmu;
+
+        pageTableEntry = lockInfo->pageTables[Kernel->core];
+
+        /* Fill page table entries. */
+        if (phys != gcvINVALID_ADDRESS)
+        {
+            gctUINT32 address = lockInfo->GPUAddresses[Kernel->core];
+            for (i = 0; i < pageCount; i++)
+            {
+                gckMMU_GetPageEntry(mmu, address, &pageTableEntry);
+                gckMMU_SetPage(mmu, phys & 0xFFFFF000, pageTableEntry);
+                phys += 4096;
+                address += 4096;
+                pageTableEntry += 1;
+            }
+        }
+        else
+        {
+            gctUINT32 address = lockInfo->GPUAddresses[Kernel->core];
+            gcmkASSERT(physical != gcvNULL);
+            gcmkONERROR(gckOS_MapPagesEx(os,
+                Kernel->core,
+                physical,
+                pageCount,
+                address,
+                pageTableEntry));
+        }
+
+        gcmkONERROR(gckMMU_Flush(mmu));
+    }
+
+    *Address = lockInfo->GPUAddresses[Kernel->core] + offset;
+
+    gcmkVERIFY_OK(gckOS_ReleaseMutex(os, Node->mapMutex));
+    acquired = gcvFALSE;
+
+
+    gcmkFOOTER_NO();
+    return gcvSTATUS_OK;
+
+OnError:
+    if (acquired)
+    {
+        gcmkVERIFY_OK(gckOS_ReleaseMutex(os, Node->mapMutex));
+    }
+
+    gcmkFOOTER();
+    return status;
+}
+
+gceSTATUS
+gckVIDMEM_NODE_Unlock(
+    IN gckKERNEL Kernel,
+    IN gckVIDMEM_NODE Node,
+    IN gctUINT32 ProcessID
+    )
+{
+    gceSTATUS           status;
+    gcsGPU_MAP_PTR      gpuMap;
+    gcsLOCK_INFO_PTR    lockInfo;
+    gckMMU              mmu;
+    gcuVIDMEM_NODE_PTR  node;
+    gctUINT32           pageCount;
+    gctBOOL             acquired = gcvFALSE;
+
+    gcmkHEADER_ARG("Kernel=0x%08X, Node = %x, ProcessID=%d",
+                   Kernel, Node, ProcessID);
+
+    gcmkVERIFY_OBJECT(Kernel, gcvOBJ_KERNEL);
+    gcmkVERIFY_ARGUMENT(Node != gcvNULL);
+
+    gcmkONERROR(gckOS_AcquireMutex(Kernel->os, Node->mapMutex, gcvINFINITE));
+    acquired = gcvTRUE;
+
+    /* Get map information for current process. */
+    gpuMap = _FindGPUMap(Node->mapHead, ProcessID);
+
+    if (gpuMap == gcvNULL)
+    {
+        /* No mapping for this process. */
+        gcmkONERROR(gcvSTATUS_INVALID_DATA);
+    }
+
+    lockInfo = &gpuMap->lockInfo;
+
+    if (--lockInfo->lockeds[Kernel->core] == 0)
+    {
+        node = Node->node;
+
+        /* Get necessary information. */
+        if (node->VidMem.memory->object.type == gcvOBJ_VIDMEM)
+        {
+            gctUINT32 phys = node->VidMem.memory->baseAddress
+                           + node->VidMem.offset
+                           + node->VidMem.alignment;
+
+            /* GPU page table use 4K page. */
+            pageCount = ((phys + node->VidMem.bytes + 4096 - 1) >> 12)
+                      - (phys >> 12);
+        }
+        else
+        {
+            pageCount = node->Virtual.pageCount;
+        }
+
+        /* Get MMU which allocates pages. */
+        mmu = lockInfo->lockMmus[Kernel->core];
+
+        /* Free virtual spaces in page table. */
+        gcmkVERIFY_OK(gckMMU_FreePagesEx(
+            mmu,
+            lockInfo->GPUAddresses[Kernel->core],
+            pageCount
+            ));
+
+        _DestroyGPUMap(Kernel->os, &Node->mapHead, &Node->mapTail, gpuMap);
+    }
+
+    gcmkVERIFY_OK(gckOS_ReleaseMutex(Kernel->os, Node->mapMutex));
+    acquired = gcvFALSE;
+
+    gcmkFOOTER_NO();
+    return gcvSTATUS_OK;
+
+OnError:
+    if (acquired)
+    {
+        gcmkVERIFY_OK(gckOS_ReleaseMutex(Kernel->os, Node->mapMutex));
+    }
+
+    gcmkFOOTER();
+    return status;
+}
+#endif
+
+/*******************************************************************************
+**
+**  gckVIDMEM_HANDLE_Allocate
+**
+**  Allocate a handle for a gckVIDMEM_NODE object.
+**
+**  INPUT:
+**
+**      gckKERNEL Kernel
+**          Pointer to an gckKERNEL object.
+**
+**      gckVIDMEM_NODE Node
+**          Pointer to a gckVIDMEM_NODE object.
+**
+**  OUTPUT:
+**
+**      gctUINT32 * Handle
+**          Pointer to a variable receiving a handle represent this
+**          gckVIDMEM_NODE in userspace.
+*/
+static gceSTATUS
+gckVIDMEM_HANDLE_Allocate(
+    IN gckKERNEL Kernel,
+    IN gckVIDMEM_NODE Node,
+    OUT gctUINT32 * Handle
+    )
+{
+    gceSTATUS status;
+    gctUINT32 processID           = 0;
+    gctPOINTER pointer            = gcvNULL;
+    gctPOINTER handleDatabase     = gcvNULL;
+    gctPOINTER mutex              = gcvNULL;
+    gctUINT32 handle              = 0;
+    gckVIDMEM_HANDLE handleObject = gcvNULL;
+    gckOS os                      = Kernel->os;
+
+    gcmkHEADER_ARG("Kernel=0x%X, Node=0x%X", Kernel, Node);
+
+    gcmkVERIFY_OBJECT(os, gcvOBJ_OS);
+
+    /* Allocate a gckVIDMEM_HANDLE object. */
+    gcmkONERROR(gckOS_Allocate(os, gcmSIZEOF(gcsVIDMEM_HANDLE), &pointer));
+
+    gcmkVERIFY_OK(gckOS_ZeroMemory(pointer, gcmSIZEOF(gcsVIDMEM_HANDLE)));
+
+    handleObject = pointer;
+
+    gcmkONERROR(gckOS_AtomConstruct(os, &handleObject->reference));
+
+    /* Set default reference count to 1. */
+    gckOS_AtomSet(os, handleObject->reference, 1);
+
+    gcmkVERIFY_OK(gckOS_GetProcessID(&processID));
+
+    gcmkONERROR(
+        gckKERNEL_FindHandleDatbase(Kernel,
+                                    processID,
+                                    &handleDatabase,
+                                    &mutex));
+
+    /* Allocate a handle for this object. */
+    gcmkONERROR(
+        gckKERNEL_AllocateIntegerId(handleDatabase, handleObject, &handle));
+
+    handleObject->node = Node;
+    handleObject->handle = handle;
+
+    *Handle = handle;
+
+    gcmkFOOTER_ARG("*Handle=%d", *Handle);
+    return gcvSTATUS_OK;
+
+OnError:
+    if (handleObject != gcvNULL)
+    {
+        if (handleObject->reference != gcvNULL)
+        {
+            gcmkVERIFY_OK(gckOS_AtomDestroy(os, handleObject->reference));
+        }
+
+        gcmkVERIFY_OK(gcmkOS_SAFE_FREE(os, handleObject));
+    }
+
+    gcmkFOOTER();
+    return status;
+}
+
+static gceSTATUS
+gckVIDMEM_NODE_Reference(
+    IN gckKERNEL Kernel,
+    IN gckVIDMEM_NODE Node
+    )
+{
+    gctINT32 oldValue;
+    gcmkHEADER_ARG("Kernel=0x%X Node=0x%X", Kernel, Node);
+
+    gckOS_AtomIncrement(Kernel->os, Node->reference, &oldValue);
+
+    gcmkFOOTER_NO();
+    return gcvSTATUS_OK;
+}
+
+gceSTATUS
+gckVIDMEM_HANDLE_Reference(
+    IN gckKERNEL Kernel,
+    IN gctUINT32 ProcessID,
+    IN gctUINT32 Handle
+    )
+{
+    gceSTATUS status;
+    gckVIDMEM_HANDLE handleObject = gcvNULL;
+    gctPOINTER database           = gcvNULL;
+    gctPOINTER mutex              = gcvNULL;
+    gctINT32 oldValue             = 0;
+    gctBOOL acquired              = gcvFALSE;
+
+    gcmkHEADER_ARG("Handle=%d PrcoessID=%d", Handle, ProcessID);
+
+    gcmkONERROR(
+        gckKERNEL_FindHandleDatbase(Kernel, ProcessID, &database, &mutex));
+
+    gcmkVERIFY_OK(gckOS_AcquireMutex(Kernel->os, mutex, gcvINFINITE));
+    acquired = gcvTRUE;
+
+    /* Translate handle to gckVIDMEM_HANDLE object. */
+    gcmkONERROR(
+        gckKERNEL_QueryIntegerId(database, Handle, (gctPOINTER *)&handleObject));
+
+    /* Increase the reference count. */
+    gckOS_AtomIncrement(Kernel->os, handleObject->reference, &oldValue);
+
+    gcmkVERIFY_OK(gckOS_ReleaseMutex(Kernel->os, mutex));
+    acquired = gcvFALSE;
+
+    gcmkFOOTER_NO();
+    return gcvSTATUS_OK;
+
+OnError:
+    if (acquired)
+    {
+        gcmkVERIFY_OK(gckOS_ReleaseMutex(Kernel->os, mutex));
+    }
+
+    gcmkFOOTER();
+    return status;
+}
+
+gceSTATUS
+gckVIDMEM_HANDLE_Dereference(
+    IN gckKERNEL Kernel,
+    IN gctUINT32 ProcessID,
+    IN gctUINT32 Handle
+    )
+{
+    gceSTATUS status;
+    gctPOINTER handleDatabase     = gcvNULL;
+    gctPOINTER mutex              = gcvNULL;
+    gctINT32 oldValue             = 0;
+    gckVIDMEM_HANDLE handleObject = gcvNULL;
+    gctBOOL acquired              = gcvFALSE;
+
+    gcmkHEADER_ARG("Handle=%d PrcoessID=%d", Handle, ProcessID);
+
+    gcmkONERROR(
+        gckKERNEL_FindHandleDatbase(Kernel,
+                                    ProcessID,
+                                    &handleDatabase,
+                                    &mutex));
+
+    gcmkVERIFY_OK(gckOS_AcquireMutex(Kernel->os, mutex, gcvINFINITE));
+    acquired = gcvTRUE;
+
+    /* Translate handle to gckVIDMEM_HANDLE. */
+    gcmkONERROR(
+        gckKERNEL_QueryIntegerId(handleDatabase, Handle, (gctPOINTER *)&handleObject));
+
+    gckOS_AtomDecrement(Kernel->os, handleObject->reference, &oldValue);
+
+    if (oldValue == 1)
+    {
+        /* Remove handle from database if this is the last reference. */
+        gcmkVERIFY_OK(gckKERNEL_FreeIntegerId(handleDatabase, Handle));
+    }
+
+    gcmkVERIFY_OK(gckOS_ReleaseMutex(Kernel->os, mutex));
+    acquired = gcvFALSE;
+
+    if (oldValue == 1)
+    {
+        gcmkVERIFY_OK(gckOS_AtomDestroy(Kernel->os, handleObject->reference));
+        gcmkOS_SAFE_FREE(Kernel->os, handleObject);
+    }
+
+    gcmkFOOTER_NO();
+    return gcvSTATUS_OK;
+
+OnError:
+    if (acquired)
+    {
+        gcmkVERIFY_OK(gckOS_ReleaseMutex(Kernel->os, mutex));
+    }
+
+    gcmkFOOTER();
+    return status;
+}
+
+gceSTATUS
+gckVIDMEM_HANDLE_LookupAndReference(
+    IN gckKERNEL Kernel,
+    IN gctUINT32 Handle,
+    OUT gckVIDMEM_NODE * Node
+    )
+{
+    gceSTATUS status;
+    gckVIDMEM_HANDLE handleObject = gcvNULL;
+    gckVIDMEM_NODE node           = gcvNULL;
+    gctPOINTER database           = gcvNULL;
+    gctPOINTER mutex              = gcvNULL;
+    gctUINT32 processID           = 0;
+    gctBOOL acquired              = gcvFALSE;
+
+    gcmkHEADER_ARG("Kernel=0x%X Handle=%d", Kernel, Handle);
+
+    gckOS_GetProcessID(&processID);
+
+    gcmkONERROR(
+        gckKERNEL_FindHandleDatbase(Kernel, processID, &database, &mutex));
+
+    gcmkVERIFY_OK(gckOS_AcquireMutex(Kernel->os, mutex, gcvINFINITE));
+    acquired = gcvTRUE;
+
+    /* Translate handle to gckVIDMEM_HANDLE object. */
+    gcmkONERROR(
+        gckKERNEL_QueryIntegerId(database, Handle, (gctPOINTER *)&handleObject));
+
+    /* Get gckVIDMEM_NODE object. */
+    node = handleObject->node;
+
+    gcmkVERIFY_OK(gckOS_ReleaseMutex(Kernel->os, mutex));
+    acquired = gcvFALSE;
+
+    /* Reference this gckVIDMEM_NODE object. */
+    gcmkVERIFY_OK(gckVIDMEM_NODE_Reference(Kernel, node));
+
+    /* Return result. */
+    *Node = node;
+
+    gcmkFOOTER_ARG("*Node=%d", *Node);
+    return gcvSTATUS_OK;
+
+OnError:
+    if (acquired)
+    {
+        gcmkVERIFY_OK(gckOS_ReleaseMutex(Kernel->os, mutex));
+    }
+
+    gcmkFOOTER();
+    return status;
+}
+
+gceSTATUS
+gckVIDMEM_HANDLE_Lookup(
+    IN gckKERNEL Kernel,
+    IN gctUINT32 ProcessID,
+    IN gctUINT32 Handle,
+    OUT gckVIDMEM_NODE * Node
+    )
+{
+    gceSTATUS status;
+    gckVIDMEM_HANDLE handleObject = gcvNULL;
+    gckVIDMEM_NODE node           = gcvNULL;
+    gctPOINTER database           = gcvNULL;
+    gctPOINTER mutex              = gcvNULL;
+    gctBOOL acquired              = gcvFALSE;
+
+    gcmkHEADER_ARG("Kernel=0x%X ProcessID=%d Handle=%d",
+                   Kernel, ProcessID, Handle);
+
+    gcmkONERROR(
+        gckKERNEL_FindHandleDatbase(Kernel, ProcessID, &database, &mutex));
+
+    gcmkVERIFY_OK(gckOS_AcquireMutex(Kernel->os, mutex, gcvINFINITE));
+    acquired = gcvTRUE;
+
+    gcmkONERROR(
+        gckKERNEL_QueryIntegerId(database, Handle, (gctPOINTER *)&handleObject));
+
+    node = handleObject->node;
+
+    gcmkVERIFY_OK(gckOS_ReleaseMutex(Kernel->os, mutex));
+    acquired = gcvFALSE;
+
+    *Node = node;
+
+    gcmkFOOTER_ARG("*Node=%d", *Node);
+    return gcvSTATUS_OK;
+
+OnError:
+    if (acquired)
+    {
+        gcmkVERIFY_OK(gckOS_ReleaseMutex(Kernel->os, mutex));
+    }
+
+    gcmkFOOTER();
+    return status;
+}
+
+/*******************************************************************************
+**
+**  gckVIDMEM_NODE_Allocate
+**
+**  Allocate a gckVIDMEM_NODE object.
+**
+**  INPUT:
+**
+**      gckKERNEL Kernel
+**          Pointer to an gckKERNEL object.
+**
+**      gcuVIDMEM_NODE_PTR Node
+**          Pointer to a gcuVIDMEM_NODE union.
+**
+**  OUTPUT:
+**
+**      gctUINT32 * Handle
+**          Pointer to a variable receiving a handle represent this
+**          gckVIDMEM_NODE in userspace.
+*/
+gceSTATUS
+gckVIDMEM_NODE_Allocate(
+    IN gckKERNEL Kernel,
+    IN gcuVIDMEM_NODE_PTR VideoNode,
+    IN gceSURF_TYPE Type,
+    IN gcePOOL Pool,
+    IN gctUINT32 * Handle
+    )
+{
+    gceSTATUS status;
+    gckVIDMEM_NODE node = gcvNULL;
+    gctPOINTER pointer  = gcvNULL;
+    gctUINT32 handle    = 0;
+    gckOS os            = Kernel->os;
+
+    gcmkHEADER_ARG("Kernel=0x%X VideoNode=0x%X", Kernel, VideoNode);
+
+    /* Construct a node. */
+    gcmkONERROR(gckOS_Allocate(os, gcmSIZEOF(gcsVIDMEM_NODE), &pointer));
+
+    gcmkVERIFY_OK(gckOS_ZeroMemory(pointer, gcmSIZEOF(gcsVIDMEM_NODE)));
+
+    node = pointer;
+
+    node->node = VideoNode;
+    node->type = Type;
+    node->pool = Pool;
+
+#if gcdPROCESS_ADDRESS_SPACE
+    gcmkONERROR(gckOS_CreateMutex(os, &node->mapMutex));
+#endif
+
+    gcmkONERROR(gckOS_AtomConstruct(os, &node->reference));
+
+    gcmkONERROR(gckOS_CreateMutex(os, &node->mutex));
+
+    /* Reference is 1 by default . */
+    gckVIDMEM_NODE_Reference(Kernel, node);
+
+    /* Create a handle to represent this node. */
+    gcmkONERROR(gckVIDMEM_HANDLE_Allocate(Kernel, node, &handle));
+
+    *Handle = handle;
+
+    gcmkFOOTER_ARG("*Handle=%d", *Handle);
+    return gcvSTATUS_OK;
+
+OnError:
+    if (node != gcvNULL)
+    {
+#if gcdPROCESS_ADDRESS_SPACE
+        if (node->mapMutex != gcvNULL)
+        {
+            gcmkVERIFY_OK(gckOS_DeleteMutex(os, node->mapMutex));
+        }
+#endif
+
+        if (node->mutex)
+        {
+            gcmkVERIFY_OK(gckOS_DeleteMutex(os, node->mutex));
+        }
+
+        if (node->reference != gcvNULL)
+        {
+            gcmkVERIFY_OK(gckOS_AtomDestroy(os, node->reference));
+        }
+
+        gcmkVERIFY_OK(gcmkOS_SAFE_FREE(os, node));
+    }
+
+    gcmkFOOTER();
+    return status;
+}
+
+gceSTATUS
+gckVIDMEM_NODE_Dereference(
+    IN gckKERNEL Kernel,
+    IN gckVIDMEM_NODE Node
+    )
+{
+    gctINT32 oldValue   = 0;
+    gctPOINTER database = Kernel->db->nameDatabase;
+    gctPOINTER mutex    = Kernel->db->nameDatabaseMutex;
+
+    gcmkHEADER_ARG("Kernel=0x%X Node=0x%X", Kernel, Node);
+
+    gcmkVERIFY_OK(gckOS_AcquireMutex(Kernel->os, mutex, gcvINFINITE));
+
+    gcmkVERIFY_OK(gckOS_AtomDecrement(Kernel->os, Node->reference, &oldValue));
+
+    if (oldValue == 1 && Node->name)
+    {
+        /* Free name if exists. */
+        gcmkVERIFY_OK(gckKERNEL_FreeIntegerId(database, Node->name));
+    }
+
+    gcmkVERIFY_OK(gckOS_ReleaseMutex(Kernel->os, mutex));
+
+    if (oldValue == 1)
+    {
+        /* Free gcuVIDMEM_NODE. */
+        gcmkVERIFY_OK(gckVIDMEM_Free(Kernel, Node->node));
+        gcmkVERIFY_OK(gckOS_AtomDestroy(Kernel->os, Node->reference));
+#if gcdPROCESS_ADDRESS_SPACE
+        gcmkVERIFY_OK(gckOS_DeleteMutex(Kernel->os, Node->mapMutex));
+#endif
+        gcmkVERIFY_OK(gckOS_DeleteMutex(Kernel->os, Node->mutex));
+        gcmkOS_SAFE_FREE(Kernel->os, Node);
+    }
+
+    gcmkFOOTER_NO();
+    return gcvSTATUS_OK;
+}
+
+/*******************************************************************************
+**
+**  gckVIDMEM_NODE_Name
+**
+**  Naming a gckVIDMEM_NODE object.
+**
+**  INPUT:
+**
+**      gckKERNEL Kernel
+**          Pointer to an gckKERNEL object.
+**
+**      gctUINT32 Handle
+**          Handle to a gckVIDMEM_NODE object.
+**
+**  OUTPUT:
+**
+**      gctUINT32 * Name
+**          Pointer to a variable receiving a name which can be pass to another
+**          process.
+*/
+gceSTATUS
+gckVIDMEM_NODE_Name(
+    IN gckKERNEL Kernel,
+    IN gctUINT32 Handle,
+    IN gctUINT32 * Name
+    )
+{
+    gceSTATUS status;
+    gckVIDMEM_NODE node = gcvNULL;
+    gctUINT32 name      = 0;
+    gctUINT32 processID = 0;
+    gctPOINTER database = Kernel->db->nameDatabase;
+    gctPOINTER mutex    = Kernel->db->nameDatabaseMutex;
+    gctBOOL acquired    = gcvFALSE;
+    gctBOOL referenced  = gcvFALSE;
+    gcmkHEADER_ARG("Kernel=0x%X Handle=%d", Kernel, Handle);
+
+    gcmkONERROR(gckOS_GetProcessID(&processID));
+
+    gcmkONERROR(gckOS_AcquireMutex(Kernel->os, mutex, gcvINFINITE));
+    acquired = gcvTRUE;
+
+    gcmkONERROR(gckVIDMEM_HANDLE_LookupAndReference(Kernel, Handle, &node));
+    referenced = gcvTRUE;
+
+    if (node->name == 0)
+    {
+        /* Name this node. */
+        gcmkONERROR(gckKERNEL_AllocateIntegerId(database, node, &name));
+        node->name = name;
+    }
+
+    gcmkVERIFY_OK(gckOS_ReleaseMutex(Kernel->os, mutex));
+    acquired = gcvFALSE;
+
+    gcmkVERIFY_OK(gckVIDMEM_NODE_Dereference(Kernel, node));
+
+    if(node)
+    {
+        *Name = node->name;
+    }
+
+    gcmkFOOTER_ARG("*Name=%d", *Name);
+    return gcvSTATUS_OK;
+
+OnError:
+    if (referenced)
+    {
+        gcmkVERIFY_OK(gckVIDMEM_NODE_Dereference(Kernel, node));
+    }
+
+    if (acquired)
+    {
+        gcmkVERIFY_OK(gckOS_ReleaseMutex(Kernel->os, mutex));
+    }
+
+    gcmkFOOTER();
+    return status;
+}
+
+/*******************************************************************************
+**
+**  gckVIDMEM_NODE_Import
+**
+**  Import a gckVIDMEM_NODE object.
+**
+**  INPUT:
+**
+**      gckKERNEL Kernel
+**          Pointer to an gckKERNEL object.
+**
+**      gctUINT32 Name
+**          Name of a gckVIDMEM_NODE object.
+**
+**  OUTPUT:
+**
+**      gctUINT32 * Handle
+**          Pointer to a variable receiving a handle represent this
+**          gckVIDMEM_NODE in userspace.
+*/
+gceSTATUS
+gckVIDMEM_NODE_Import(
+    IN gckKERNEL Kernel,
+    IN gctUINT32 Name,
+    IN gctUINT32 * Handle
+    )
+{
+    gceSTATUS status;
+    gckVIDMEM_NODE node = gcvNULL;
+    gctPOINTER database = Kernel->db->nameDatabase;
+    gctPOINTER mutex    = Kernel->db->nameDatabaseMutex;
+    gctBOOL acquired    = gcvFALSE;
+    gctBOOL referenced  = gcvFALSE;
+
+    gcmkHEADER_ARG("Kernel=0x%X Name=%d", Kernel, Name);
+
+    gcmkONERROR(gckOS_AcquireMutex(Kernel->os, mutex, gcvINFINITE));
+    acquired = gcvTRUE;
+
+    /* Lookup in database to get the node. */
+    gcmkONERROR(gckKERNEL_QueryIntegerId(database, Name, (gctPOINTER *)&node));
+
+    /* Reference the node. */
+    gcmkONERROR(gckVIDMEM_NODE_Reference(Kernel, node));
+    referenced = gcvTRUE;
+
+    gcmkVERIFY_OK(gckOS_ReleaseMutex(Kernel->os, mutex));
+    acquired = gcvFALSE;
+
+    /* Allocate a handle for current process. */
+    gcmkONERROR(gckVIDMEM_HANDLE_Allocate(Kernel, node, Handle));
+
+    gcmkFOOTER_ARG("*Handle=%d", *Handle);
+    return gcvSTATUS_OK;
+
+OnError:
+    if (referenced)
+    {
+        gcmkVERIFY_OK(gckVIDMEM_NODE_Dereference(Kernel, node));
+    }
+
+    if (acquired)
+    {
+        gcmkVERIFY_OK(gckOS_ReleaseMutex(Kernel->os, mutex));
+    }
+
+    gcmkFOOTER();
+    return status;
+}
+
+
+typedef struct _gcsVIDMEM_NODE_FDPRIVATE
+{
+    gcsFDPRIVATE   base;
+    gckKERNEL      kernel;
+    gckVIDMEM_NODE node;
+}
+gcsVIDMEM_NODE_FDPRIVATE;
+
+
+static gctINT
+_ReleaseFdPrivate(
+    gcsFDPRIVATE_PTR FdPrivate
+    )
+{
+    /* Cast private info. */
+    gcsVIDMEM_NODE_FDPRIVATE * private = (gcsVIDMEM_NODE_FDPRIVATE *) FdPrivate;
+
+    gckVIDMEM_NODE_Dereference(private->kernel, private->node);
+    gckOS_Free(private->kernel->os, private);
+
+    return 0;
+}
+
+/*******************************************************************************
+**
+**  gckVIDMEM_NODE_GetFd
+**
+**  Attach a gckVIDMEM_NODE object to a native fd.
+**
+**  INPUT:
+**
+**      gckKERNEL Kernel
+**          Pointer to an gckKERNEL object.
+**
+**      gctUINT32 Handle
+**          Handle to a gckVIDMEM_NODE object.
+**
+**  OUTPUT:
+**
+**      gctUINT32 * Fd
+**          Pointer to a variable receiving a native fd from os.
+*/
+gceSTATUS
+gckVIDMEM_NODE_GetFd(
+    IN gckKERNEL Kernel,
+    IN gctUINT32 Handle,
+    OUT gctINT * Fd
+    )
+{
+    gceSTATUS status;
+    gckVIDMEM_NODE node = gcvNULL;
+    gctBOOL referenced  = gcvFALSE;
+    gcsVIDMEM_NODE_FDPRIVATE * fdPrivate = gcvNULL;
+    gcmkHEADER_ARG("Kernel=0x%X Handle=%d", Kernel, Handle);
+
+    /* Query and reference handle. */
+    gcmkONERROR(gckVIDMEM_HANDLE_LookupAndReference(Kernel, Handle, &node));
+    referenced = gcvTRUE;
+
+    /* Allocate memory for private info. */
+    gcmkONERROR(gckOS_Allocate(
+        Kernel->os,
+        gcmSIZEOF(gcsVIDMEM_NODE_FDPRIVATE),
+        (gctPOINTER *)&fdPrivate
+        ));
+
+    fdPrivate->base.release = _ReleaseFdPrivate;
+    fdPrivate->kernel = Kernel;
+    fdPrivate->node   = node;
+
+    /* Allocated fd owns a reference. */
+    gcmkONERROR(gckOS_GetFd("vidmem", &fdPrivate->base, Fd));
+
+    gcmkFOOTER_ARG("*Fd=%d", *Fd);
+    return gcvSTATUS_OK;
+
+OnError:
+    if (referenced)
+    {
+        gcmkVERIFY_OK(gckVIDMEM_NODE_Dereference(Kernel, node));
+    }
+
+    if (fdPrivate)
+    {
+        gcmkVERIFY_OK(gcmkOS_SAFE_FREE(Kernel->os, fdPrivate));
+    }
+
+    gcmkFOOTER();
+    return status;
+}
+
+gceSTATUS
+gckVIDMEM_ConstructVirtualFromUserMemory(
+    IN gckKERNEL Kernel,
+    IN gcsUSER_MEMORY_DESC_PTR Desc,
+    OUT gcuVIDMEM_NODE_PTR * Node
+    )
+{
+    gckOS os;
+    gceSTATUS status;
+    gcuVIDMEM_NODE_PTR node = gcvNULL;
+    gctPOINTER pointer = gcvNULL;
+
+    gcmkHEADER_ARG("Kernel=0x%x", Kernel);
+
+    /* Verify the arguments. */
+    gcmkVERIFY_OBJECT(Kernel, gcvOBJ_KERNEL);
+    gcmkVERIFY_ARGUMENT(Node != gcvNULL);
+
+    /* Extract the gckOS object pointer. */
+    os = Kernel->os;
+    gcmkVERIFY_OBJECT(os, gcvOBJ_OS);
+
+    /* Allocate an gcuVIDMEM_NODE union. */
+    gcmkONERROR(gckOS_Allocate(os, gcmSIZEOF(gcuVIDMEM_NODE), &pointer));
+
+    gckOS_ZeroMemory(pointer, gcmSIZEOF(gcuVIDMEM_NODE));
+
+    node = pointer;
+
+    /* Initialize gcuVIDMEM_NODE union for virtual memory. */
+    node->Virtual.kernel     = Kernel;
+    node->Virtual.contiguous = gcvFALSE;
+
+    /* Wrap Memory. */
+    gcmkONERROR(gckOS_WrapMemory(
+        os, Desc, &node->Virtual.bytes, &node->Virtual.physical));
+
+    /* Return pointer to the gcuVIDMEM_NODE union. */
+    *Node = node;
+
+    /* Success. */
+    gcmkFOOTER_ARG("*Node=0x%x", *Node);
+    return gcvSTATUS_OK;
+
+OnError:
+    /* Roll back. */
+    if (node != gcvNULL)
+    {
+        /* Free the structure. */
+        gcmkVERIFY_OK(gcmkOS_SAFE_FREE(os, node));
+    }
+
+    /* Return the status. */
+    gcmkFOOTER();
+    return status;
+}
diff --git a/src/hal/kernel/inc/gc_hal.h b/src/hal/kernel/inc/gc_hal.h
new file mode 100755
index 0000000..6a44f1b
--- /dev/null
+++ b/src/hal/kernel/inc/gc_hal.h
@@ -0,0 +1,2767 @@
+/****************************************************************************
+*
+*    The MIT License (MIT)
+*
+*    Copyright (c) 2014 Vivante Corporation
+*
+*    Permission is hereby granted, free of charge, to any person obtaining a
+*    copy of this software and associated documentation files (the "Software"),
+*    to deal in the Software without restriction, including without limitation
+*    the rights to use, copy, modify, merge, publish, distribute, sublicense,
+*    and/or sell copies of the Software, and to permit persons to whom the
+*    Software is furnished to do so, subject to the following conditions:
+*
+*    The above copyright notice and this permission notice shall be included in
+*    all copies or substantial portions of the Software.
+*
+*    THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+*    IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+*    FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+*    AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+*    LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+*    FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+*    DEALINGS IN THE SOFTWARE.
+*
+*****************************************************************************
+*
+*    The GPL License (GPL)
+*
+*    Copyright (C) 2014  Vivante Corporation
+*
+*    This program is free software; you can redistribute it and/or
+*    modify it under the terms of the GNU General Public License
+*    as published by the Free Software Foundation; either version 2
+*    of the License, or (at your option) any later version.
+*
+*    This program is distributed in the hope that it will be useful,
+*    but WITHOUT ANY WARRANTY; without even the implied warranty of
+*    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+*    GNU General Public License for more details.
+*
+*    You should have received a copy of the GNU General Public License
+*    along with this program; if not, write to the Free Software Foundation,
+*    Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+*
+*****************************************************************************
+*
+*    Note: This software is released under dual MIT and GPL licenses. A
+*    recipient may use this file under the terms of either the MIT license or
+*    GPL License. If you wish to use only one license not the other, you can
+*    indicate your decision by deleting one of the above license notices in your
+*    version of this file.
+*
+*****************************************************************************/
+
+
+#ifndef __gc_hal_h_
+#define __gc_hal_h_
+
+#include "gc_hal_rename.h"
+#include "gc_hal_types.h"
+#include "gc_hal_enum.h"
+#include "gc_hal_base.h"
+#include "gc_hal_profiler.h"
+#include "gc_hal_driver.h"
+
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/******************************************************************************\
+******************************* Alignment Macros *******************************
+\******************************************************************************/
+
+/* Alignment with a non-power of two value. */
+#define gcmALIGN_NP2(n, align) \
+( \
+    ((n) + (align) - 1) - (((n) + (align) - 1) % (align)) \
+)
+
+/* Alignment with a power of two value. */
+#define gcmALIGN(n, align) \
+( \
+    ((n) + ((align) - 1)) & ~((align) - 1) \
+)
+
+#define gcmALIGN_BASE(n, align) \
+( \
+    ((n) & ~((align) - 1)) \
+)
+
+/******************************************************************************\
+***************************** Element Count Macro *****************************
+\******************************************************************************/
+
+#define gcmSIZEOF(a) \
+( \
+    (gctSIZE_T) (sizeof(a)) \
+)
+
+#define gcmCOUNTOF(a) \
+( \
+    sizeof(a) / sizeof(a[0]) \
+)
+
+/******************************************************************************\
+********************************* Cast Macro **********************************
+\******************************************************************************/
+#define gcmNAME_TO_PTR(na) \
+        gckKERNEL_QueryPointerFromName(kernel, gcmALL_TO_UINT32(na))
+
+#define gcmPTR_TO_NAME(ptr) \
+        gckKERNEL_AllocateNameFromPointer(kernel, ptr)
+
+#define gcmRELEASE_NAME(na) \
+        gckKERNEL_DeleteName(kernel, gcmALL_TO_UINT32(na))
+
+#define gcmALL_TO_UINT32(t) \
+( \
+    (gctUINT32) (gctUINTPTR_T) (t)\
+)
+
+#define gcmPTR_TO_UINT64(p) \
+( \
+    (gctUINT64) (gctUINTPTR_T) (p)\
+)
+
+#define gcmUINT64_TO_PTR(u) \
+( \
+    (gctPOINTER) (gctUINTPTR_T) (u)\
+)
+
+#define gcmUINT64_TO_TYPE(u, t) \
+( \
+    (t) (gctUINTPTR_T) (u)\
+)
+
+/******************************************************************************\
+******************************** Useful Macro *********************************
+\******************************************************************************/
+
+#define gcvINVALID_ADDRESS          ~0U
+
+#define gcmGET_PRE_ROTATION(rotate) \
+    ((rotate) & (~(gcvSURF_POST_FLIP_X | gcvSURF_POST_FLIP_Y)))
+
+#define gcmGET_POST_ROTATION(rotate) \
+    ((rotate) & (gcvSURF_POST_FLIP_X | gcvSURF_POST_FLIP_Y))
+
+/******************************************************************************\
+******************************** gcsOBJECT Object *******************************
+\******************************************************************************/
+
+/* Type of objects. */
+typedef enum _gceOBJECT_TYPE
+{
+    gcvOBJ_UNKNOWN              = 0,
+    gcvOBJ_2D                   = gcmCC('2','D',' ',' '),
+    gcvOBJ_3D                   = gcmCC('3','D',' ',' '),
+    gcvOBJ_ATTRIBUTE            = gcmCC('A','T','T','R'),
+    gcvOBJ_BRUSHCACHE           = gcmCC('B','R','U','$'),
+    gcvOBJ_BRUSHNODE            = gcmCC('B','R','U','n'),
+    gcvOBJ_BRUSH                = gcmCC('B','R','U','o'),
+    gcvOBJ_BUFFER               = gcmCC('B','U','F','R'),
+    gcvOBJ_COMMAND              = gcmCC('C','M','D',' '),
+    gcvOBJ_COMMANDBUFFER        = gcmCC('C','M','D','B'),
+    gcvOBJ_CONTEXT              = gcmCC('C','T','X','T'),
+    gcvOBJ_DEVICE               = gcmCC('D','E','V',' '),
+    gcvOBJ_DUMP                 = gcmCC('D','U','M','P'),
+    gcvOBJ_EVENT                = gcmCC('E','V','N','T'),
+    gcvOBJ_FUNCTION             = gcmCC('F','U','N','C'),
+    gcvOBJ_HAL                  = gcmCC('H','A','L',' '),
+    gcvOBJ_HARDWARE             = gcmCC('H','A','R','D'),
+    gcvOBJ_HEAP                 = gcmCC('H','E','A','P'),
+    gcvOBJ_INDEX                = gcmCC('I','N','D','X'),
+    gcvOBJ_INTERRUPT            = gcmCC('I','N','T','R'),
+    gcvOBJ_KERNEL               = gcmCC('K','E','R','N'),
+    gcvOBJ_KERNEL_FUNCTION      = gcmCC('K','F','C','N'),
+    gcvOBJ_MEMORYBUFFER         = gcmCC('M','E','M','B'),
+    gcvOBJ_MMU                  = gcmCC('M','M','U',' '),
+    gcvOBJ_OS                   = gcmCC('O','S',' ',' '),
+    gcvOBJ_OUTPUT               = gcmCC('O','U','T','P'),
+    gcvOBJ_PAINT                = gcmCC('P','N','T',' '),
+    gcvOBJ_PATH                 = gcmCC('P','A','T','H'),
+    gcvOBJ_QUEUE                = gcmCC('Q','U','E',' '),
+    gcvOBJ_SAMPLER              = gcmCC('S','A','M','P'),
+    gcvOBJ_SHADER               = gcmCC('S','H','D','R'),
+    gcvOBJ_STREAM               = gcmCC('S','T','R','M'),
+    gcvOBJ_SURF                 = gcmCC('S','U','R','F'),
+    gcvOBJ_TEXTURE              = gcmCC('T','X','T','R'),
+    gcvOBJ_UNIFORM              = gcmCC('U','N','I','F'),
+    gcvOBJ_VARIABLE             = gcmCC('V','A','R','I'),
+    gcvOBJ_VERTEX               = gcmCC('V','R','T','X'),
+    gcvOBJ_VIDMEM               = gcmCC('V','M','E','M'),
+    gcvOBJ_VG                   = gcmCC('V','G',' ',' '),
+    gcvOBJ_BUFOBJ               = gcmCC('B','U','F','O'),
+    gcvOBJ_UNIFORM_BLOCK        = gcmCC('U','B','L','K'),
+    gcvOBJ_CL                   = gcmCC('C','L',' ',' '),
+}
+gceOBJECT_TYPE;
+
+/* gcsOBJECT object defintinon. */
+typedef struct _gcsOBJECT
+{
+    /* Type of an object. */
+    gceOBJECT_TYPE              type;
+}
+gcsOBJECT;
+
+typedef struct _gckHARDWARE *       gckHARDWARE;
+
+/* CORE flags. */
+typedef enum _gceCORE
+{
+    gcvCORE_MAJOR       = 0x0,
+    gcvCORE_2D          = 0x1,
+    gcvCORE_VG          = 0x2,
+#if gcdMULTI_GPU_AFFINITY
+    gcvCORE_OCL         = 0x3,
+#endif
+#if gcdENABLE_DEC_COMPRESSION
+    gcvCORE_DEC         = 0x4,
+#endif
+    gcvCORE_COUNT
+}
+gceCORE;
+
+#define gcdMAX_GPU_COUNT               gcvCORE_COUNT
+
+#define gcdMAX_SURF_LAYERS              4
+
+#define gcdMAX_DRAW_BUFFERS            8
+
+/*******************************************************************************
+**
+**  gcmVERIFY_OBJECT
+**
+**      Assert if an object is invalid or is not of the specified type.  If the
+**      object is invalid or not of the specified type, gcvSTATUS_INVALID_OBJECT
+**      will be returned from the current function.  In retail mode this macro
+**      does nothing.
+**
+**  ARGUMENTS:
+**
+**      obj     Object to test.
+**      t       Expected type of the object.
+*/
+#if gcmIS_DEBUG(gcdDEBUG_TRACE)
+#define _gcmVERIFY_OBJECT(prefix, obj, t) \
+    if ((obj) == gcvNULL) \
+    { \
+        prefix##TRACE(gcvLEVEL_ERROR, \
+                      #prefix "VERIFY_OBJECT failed: NULL"); \
+        prefix##TRACE(gcvLEVEL_ERROR, "  expected: %c%c%c%c", \
+                      gcmCC_PRINT(t)); \
+        prefix##ASSERT((obj) != gcvNULL); \
+        prefix##FOOTER_ARG("status=%d", gcvSTATUS_INVALID_OBJECT); \
+        return gcvSTATUS_INVALID_OBJECT; \
+    } \
+    else if (((gcsOBJECT*) (obj))->type != t) \
+    { \
+        prefix##TRACE(gcvLEVEL_ERROR, \
+                      #prefix "VERIFY_OBJECT failed: %c%c%c%c", \
+                      gcmCC_PRINT(((gcsOBJECT*) (obj))->type)); \
+        prefix##TRACE(gcvLEVEL_ERROR, "  expected: %c%c%c%c", \
+                      gcmCC_PRINT(t)); \
+        prefix##ASSERT(((gcsOBJECT*)(obj))->type == t); \
+        prefix##FOOTER_ARG("status=%d", gcvSTATUS_INVALID_OBJECT); \
+        return gcvSTATUS_INVALID_OBJECT; \
+    }
+
+#   define gcmVERIFY_OBJECT(obj, t)     _gcmVERIFY_OBJECT(gcm, obj, t)
+#   define gcmkVERIFY_OBJECT(obj, t)    _gcmVERIFY_OBJECT(gcmk, obj, t)
+#else
+#   define gcmVERIFY_OBJECT(obj, t)     do {} while (gcvFALSE)
+#   define gcmkVERIFY_OBJECT(obj, t)    do {} while (gcvFALSE)
+#endif
+
+/******************************************************************************/
+/*VERIFY_OBJECT if special return expected*/
+/******************************************************************************/
+#ifndef EGL_API_ANDROID
+#   define _gcmVERIFY_OBJECT_RETURN(prefix, obj, t, retVal) \
+        do \
+        { \
+            if ((obj) == gcvNULL) \
+            { \
+                prefix##PRINT_VERSION(); \
+                prefix##TRACE(gcvLEVEL_ERROR, \
+                              #prefix "VERIFY_OBJECT_RETURN failed: NULL"); \
+                prefix##TRACE(gcvLEVEL_ERROR, "  expected: %c%c%c%c", \
+                              gcmCC_PRINT(t)); \
+                prefix##ASSERT((obj) != gcvNULL); \
+                prefix##FOOTER_ARG("retVal=%d", retVal); \
+                return retVal; \
+            } \
+            else if (((gcsOBJECT*) (obj))->type != t) \
+            { \
+                prefix##PRINT_VERSION(); \
+                prefix##TRACE(gcvLEVEL_ERROR, \
+                              #prefix "VERIFY_OBJECT_RETURN failed: %c%c%c%c", \
+                              gcmCC_PRINT(((gcsOBJECT*) (obj))->type)); \
+                prefix##TRACE(gcvLEVEL_ERROR, "  expected: %c%c%c%c", \
+                              gcmCC_PRINT(t)); \
+                prefix##ASSERT(((gcsOBJECT*)(obj))->type == t); \
+                prefix##FOOTER_ARG("retVal=%d", retVal); \
+                return retVal; \
+            } \
+        } \
+        while (gcvFALSE)
+#   define gcmVERIFY_OBJECT_RETURN(obj, t, retVal) \
+                            _gcmVERIFY_OBJECT_RETURN(gcm, obj, t, retVal)
+#   define gcmkVERIFY_OBJECT_RETURN(obj, t, retVal) \
+                            _gcmVERIFY_OBJECT_RETURN(gcmk, obj, t, retVal)
+#else
+#   define gcmVERIFY_OBJECT_RETURN(obj, t)     do {} while (gcvFALSE)
+#   define gcmVERIFY_OBJECT_RETURN(obj, t)    do {} while (gcvFALSE)
+#endif
+
+/******************************************************************************\
+********************************** gckOS Object *********************************
+\******************************************************************************/
+
+/* Construct a new gckOS object. */
+gceSTATUS
+gckOS_Construct(
+    IN gctPOINTER Context,
+    OUT gckOS * Os
+    );
+
+/* Destroy an gckOS object. */
+gceSTATUS
+gckOS_Destroy(
+    IN gckOS Os
+    );
+
+/* Query the video memory. */
+gceSTATUS
+gckOS_QueryVideoMemory(
+    IN gckOS Os,
+    OUT gctPHYS_ADDR * InternalAddress,
+    OUT gctSIZE_T * InternalSize,
+    OUT gctPHYS_ADDR * ExternalAddress,
+    OUT gctSIZE_T * ExternalSize,
+    OUT gctPHYS_ADDR * ContiguousAddress,
+    OUT gctSIZE_T * ContiguousSize
+    );
+
+/* Allocate memory from the heap. */
+gceSTATUS
+gckOS_Allocate(
+    IN gckOS Os,
+    IN gctSIZE_T Bytes,
+    OUT gctPOINTER * Memory
+    );
+
+/* Free allocated memory. */
+gceSTATUS
+gckOS_Free(
+    IN gckOS Os,
+    IN gctPOINTER Memory
+    );
+
+/* Wrapper for allocation memory.. */
+gceSTATUS
+gckOS_AllocateMemory(
+    IN gckOS Os,
+    IN gctSIZE_T Bytes,
+    OUT gctPOINTER * Memory
+    );
+
+/* Wrapper for freeing memory. */
+gceSTATUS
+gckOS_FreeMemory(
+    IN gckOS Os,
+    IN gctPOINTER Memory
+    );
+
+/* Allocate paged memory. */
+gceSTATUS
+gckOS_AllocatePagedMemory(
+    IN gckOS Os,
+    IN gctSIZE_T Bytes,
+    OUT gctPHYS_ADDR * Physical
+    );
+
+/* Allocate paged memory. */
+gceSTATUS
+gckOS_AllocatePagedMemoryEx(
+    IN gckOS Os,
+    IN gctUINT32 Flag,
+    IN gctSIZE_T Bytes,
+    OUT gctUINT32 * Gid,
+    OUT gctPHYS_ADDR * Physical
+    );
+
+/* Lock pages. */
+gceSTATUS
+gckOS_LockPages(
+    IN gckOS Os,
+    IN gctPHYS_ADDR Physical,
+    IN gctSIZE_T Bytes,
+    IN gctBOOL Cacheable,
+    OUT gctPOINTER * Logical,
+    OUT gctSIZE_T * PageCount
+    );
+
+/* Map pages. */
+gceSTATUS
+gckOS_MapPages(
+    IN gckOS Os,
+    IN gctPHYS_ADDR Physical,
+    IN gctSIZE_T PageCount,
+    IN gctPOINTER PageTable
+    );
+
+/* Map pages. */
+gceSTATUS
+gckOS_MapPagesEx(
+    IN gckOS Os,
+    IN gceCORE Core,
+    IN gctPHYS_ADDR Physical,
+    IN gctSIZE_T PageCount,
+    IN gctUINT32 Address,
+    IN gctPOINTER PageTable
+    );
+
+gceSTATUS
+gckOS_UnmapPages(
+    IN gckOS Os,
+    IN gctSIZE_T PageCount,
+    IN gctUINT32 Address
+    );
+
+/* Unlock pages. */
+gceSTATUS
+gckOS_UnlockPages(
+    IN gckOS Os,
+    IN gctPHYS_ADDR Physical,
+    IN gctSIZE_T Bytes,
+    IN gctPOINTER Logical
+    );
+
+/* Free paged memory. */
+gceSTATUS
+gckOS_FreePagedMemory(
+    IN gckOS Os,
+    IN gctPHYS_ADDR Physical,
+    IN gctSIZE_T Bytes
+    );
+
+/* Allocate non-paged memory. */
+gceSTATUS
+gckOS_AllocateNonPagedMemory(
+    IN gckOS Os,
+    IN gctBOOL InUserSpace,
+    IN OUT gctSIZE_T * Bytes,
+    OUT gctPHYS_ADDR * Physical,
+    OUT gctPOINTER * Logical
+    );
+
+/* Free non-paged memory. */
+gceSTATUS
+gckOS_FreeNonPagedMemory(
+    IN gckOS Os,
+    IN gctSIZE_T Bytes,
+    IN gctPHYS_ADDR Physical,
+    IN gctPOINTER Logical
+    );
+
+/* Allocate contiguous memory. */
+gceSTATUS
+gckOS_AllocateContiguous(
+    IN gckOS Os,
+    IN gctBOOL InUserSpace,
+    IN OUT gctSIZE_T * Bytes,
+    OUT gctPHYS_ADDR * Physical,
+    OUT gctPOINTER * Logical
+    );
+
+/* Free contiguous memory. */
+gceSTATUS
+gckOS_FreeContiguous(
+    IN gckOS Os,
+    IN gctPHYS_ADDR Physical,
+    IN gctPOINTER Logical,
+    IN gctSIZE_T Bytes
+    );
+
+/* Get the number fo bytes per page. */
+gceSTATUS
+gckOS_GetPageSize(
+    IN gckOS Os,
+    OUT gctSIZE_T * PageSize
+    );
+
+/* Get the physical address of a corresponding logical address. */
+gceSTATUS
+gckOS_GetPhysicalAddress(
+    IN gckOS Os,
+    IN gctPOINTER Logical,
+    OUT gctPHYS_ADDR_T * Address
+    );
+
+/* Get the physical address of a corresponding user logical address. */
+gceSTATUS
+gckOS_UserLogicalToPhysical(
+    IN gckOS Os,
+    IN gctPOINTER Logical,
+    OUT gctUINT64 * Address
+    );
+
+/* Map physical memory. */
+gceSTATUS
+gckOS_MapPhysical(
+    IN gckOS Os,
+    IN gctUINT32 Physical,
+    IN gctSIZE_T Bytes,
+    OUT gctPOINTER * Logical
+    );
+
+/* Unmap previously mapped physical memory. */
+gceSTATUS
+gckOS_UnmapPhysical(
+    IN gckOS Os,
+    IN gctPOINTER Logical,
+    IN gctSIZE_T Bytes
+    );
+
+/* Get real physical address from descriptor. */
+gceSTATUS
+gckOS_PhysicalToPhysicalAddress(
+    IN gckOS Os,
+    IN gctPOINTER Physical,
+    OUT gctPHYS_ADDR_T * PhysicalAddress
+    );
+
+/* Read data from a hardware register. */
+gceSTATUS
+gckOS_ReadRegister(
+    IN gckOS Os,
+    IN gctUINT32 Address,
+    OUT gctUINT32 * Data
+    );
+
+/* Read data from a hardware register. */
+gceSTATUS
+gckOS_ReadRegisterEx(
+    IN gckOS Os,
+    IN gceCORE Core,
+    IN gctUINT32 Address,
+    OUT gctUINT32 * Data
+    );
+
+/* Write data to a hardware register. */
+gceSTATUS
+gckOS_WriteRegister(
+    IN gckOS Os,
+    IN gctUINT32 Address,
+    IN gctUINT32 Data
+    );
+
+/* Write data to a hardware register. */
+gceSTATUS
+gckOS_WriteRegisterEx(
+    IN gckOS Os,
+    IN gceCORE Core,
+    IN gctUINT32 Address,
+    IN gctUINT32 Data
+    );
+
+
+/* Write data to a 32-bit memory location. */
+gceSTATUS
+gckOS_WriteMemory(
+    IN gckOS Os,
+    IN gctPOINTER Address,
+    IN gctUINT32 Data
+    );
+
+/* Map physical memory into the process space. */
+gceSTATUS
+gckOS_MapMemory(
+    IN gckOS Os,
+    IN gctPHYS_ADDR Physical,
+    IN gctSIZE_T Bytes,
+    OUT gctPOINTER * Logical
+    );
+
+/* Unmap physical memory from the specified process space. */
+gceSTATUS
+gckOS_UnmapMemoryEx(
+    IN gckOS Os,
+    IN gctPHYS_ADDR Physical,
+    IN gctSIZE_T Bytes,
+    IN gctPOINTER Logical,
+    IN gctUINT32 PID
+    );
+
+/* Unmap physical memory from the process space. */
+gceSTATUS
+gckOS_UnmapMemory(
+    IN gckOS Os,
+    IN gctPHYS_ADDR Physical,
+    IN gctSIZE_T Bytes,
+    IN gctPOINTER Logical
+    );
+
+/* Unmap user logical memory out of physical memory.
+ * This function is only supported in Linux currently.
+ */
+gceSTATUS
+gckOS_UnmapUserLogical(
+    IN gckOS Os,
+    IN gctPHYS_ADDR Physical,
+    IN gctSIZE_T Bytes,
+    IN gctPOINTER Logical
+    );
+
+/* Delete a mutex. */
+gceSTATUS
+gckOS_DeleteMutex(
+    IN gckOS Os,
+    IN gctPOINTER Mutex
+    );
+
+/* Acquire a mutex. */
+gceSTATUS
+gckOS_AcquireMutex(
+    IN gckOS Os,
+    IN gctPOINTER Mutex,
+    IN gctUINT32 Timeout
+    );
+
+/* Release a mutex. */
+gceSTATUS
+gckOS_ReleaseMutex(
+    IN gckOS Os,
+    IN gctPOINTER Mutex
+    );
+
+/* Atomically exchange a pair of 32-bit values. */
+gceSTATUS
+gckOS_AtomicExchange(
+    IN gckOS Os,
+    IN OUT gctUINT32_PTR Target,
+    IN gctUINT32 NewValue,
+    OUT gctUINT32_PTR OldValue
+    );
+
+/* Atomically exchange a pair of pointers. */
+gceSTATUS
+gckOS_AtomicExchangePtr(
+    IN gckOS Os,
+    IN OUT gctPOINTER * Target,
+    IN gctPOINTER NewValue,
+    OUT gctPOINTER * OldValue
+    );
+
+gceSTATUS
+gckOS_AtomSetMask(
+    IN gctPOINTER Atom,
+    IN gctUINT32 Mask
+    );
+
+gceSTATUS
+gckOS_AtomClearMask(
+    IN gctPOINTER Atom,
+    IN gctUINT32 Mask
+    );
+
+gceSTATUS
+gckOS_DumpCallStack(
+    IN gckOS Os
+    );
+
+gceSTATUS
+gckOS_GetProcessNameByPid(
+    IN gctINT Pid,
+    IN gctSIZE_T Length,
+    OUT gctUINT8_PTR String
+    );
+
+/*******************************************************************************
+**
+**  gckOS_AtomConstruct
+**
+**  Create an atom.
+**
+**  INPUT:
+**
+**      gckOS Os
+**          Pointer to a gckOS object.
+**
+**  OUTPUT:
+**
+**      gctPOINTER * Atom
+**          Pointer to a variable receiving the constructed atom.
+*/
+gceSTATUS
+gckOS_AtomConstruct(
+    IN gckOS Os,
+    OUT gctPOINTER * Atom
+    );
+
+/*******************************************************************************
+**
+**  gckOS_AtomDestroy
+**
+**  Destroy an atom.
+**
+**  INPUT:
+**
+**      gckOS Os
+**          Pointer to a gckOS object.
+**
+**      gctPOINTER Atom
+**          Pointer to the atom to destroy.
+**
+**  OUTPUT:
+**
+**      Nothing.
+*/
+gceSTATUS
+gckOS_AtomDestroy(
+    IN gckOS Os,
+    OUT gctPOINTER Atom
+    );
+
+/*******************************************************************************
+**
+**  gckOS_AtomGet
+**
+**  Get the 32-bit value protected by an atom.
+**
+**  INPUT:
+**
+**      gckOS Os
+**          Pointer to a gckOS object.
+**
+**      gctPOINTER Atom
+**          Pointer to the atom.
+**
+**  OUTPUT:
+**
+**      gctINT32_PTR Value
+**          Pointer to a variable the receives the value of the atom.
+*/
+gceSTATUS
+gckOS_AtomGet(
+    IN gckOS Os,
+    IN gctPOINTER Atom,
+    OUT gctINT32_PTR Value
+    );
+
+/*******************************************************************************
+**
+**  gckOS_AtomSet
+**
+**  Set the 32-bit value protected by an atom.
+**
+**  INPUT:
+**
+**      gckOS Os
+**          Pointer to a gckOS object.
+**
+**      gctPOINTER Atom
+**          Pointer to the atom.
+**
+**      gctINT32 Value
+**          The value of the atom.
+**
+**  OUTPUT:
+**
+**      Nothing.
+*/
+gceSTATUS
+gckOS_AtomSet(
+    IN gckOS Os,
+    IN gctPOINTER Atom,
+    IN gctINT32 Value
+    );
+
+/*******************************************************************************
+**
+**  gckOS_AtomIncrement
+**
+**  Atomically increment the 32-bit integer value inside an atom.
+**
+**  INPUT:
+**
+**      gckOS Os
+**          Pointer to a gckOS object.
+**
+**      gctPOINTER Atom
+**          Pointer to the atom.
+**
+**  OUTPUT:
+**
+**      gctINT32_PTR Value
+**          Pointer to a variable the receives the original value of the atom.
+*/
+gceSTATUS
+gckOS_AtomIncrement(
+    IN gckOS Os,
+    IN gctPOINTER Atom,
+    OUT gctINT32_PTR Value
+    );
+
+/*******************************************************************************
+**
+**  gckOS_AtomDecrement
+**
+**  Atomically decrement the 32-bit integer value inside an atom.
+**
+**  INPUT:
+**
+**      gckOS Os
+**          Pointer to a gckOS object.
+**
+**      gctPOINTER Atom
+**          Pointer to the atom.
+**
+**  OUTPUT:
+**
+**      gctINT32_PTR Value
+**          Pointer to a variable the receives the original value of the atom.
+*/
+gceSTATUS
+gckOS_AtomDecrement(
+    IN gckOS Os,
+    IN gctPOINTER Atom,
+    OUT gctINT32_PTR Value
+    );
+
+/* Delay a number of microseconds. */
+gceSTATUS
+gckOS_Delay(
+    IN gckOS Os,
+    IN gctUINT32 Delay
+    );
+
+/* Get time in milliseconds. */
+gceSTATUS
+gckOS_GetTicks(
+    OUT gctUINT32_PTR Time
+    );
+
+/* Compare time value. */
+gceSTATUS
+gckOS_TicksAfter(
+    IN gctUINT32 Time1,
+    IN gctUINT32 Time2,
+    OUT gctBOOL_PTR IsAfter
+    );
+
+/* Get time in microseconds. */
+gceSTATUS
+gckOS_GetTime(
+    OUT gctUINT64_PTR Time
+    );
+
+/* Memory barrier. */
+gceSTATUS
+gckOS_MemoryBarrier(
+    IN gckOS Os,
+    IN gctPOINTER Address
+    );
+
+/* Map user pointer. */
+gceSTATUS
+gckOS_MapUserPointer(
+    IN gckOS Os,
+    IN gctPOINTER Pointer,
+    IN gctSIZE_T Size,
+    OUT gctPOINTER * KernelPointer
+    );
+
+/* Unmap user pointer. */
+gceSTATUS
+gckOS_UnmapUserPointer(
+    IN gckOS Os,
+    IN gctPOINTER Pointer,
+    IN gctSIZE_T Size,
+    IN gctPOINTER KernelPointer
+    );
+
+/*******************************************************************************
+**
+**  gckOS_QueryNeedCopy
+**
+**  Query whether the memory can be accessed or mapped directly or it has to be
+**  copied.
+**
+**  INPUT:
+**
+**      gckOS Os
+**          Pointer to an gckOS object.
+**
+**      gctUINT32 ProcessID
+**          Process ID of the current process.
+**
+**  OUTPUT:
+**
+**      gctBOOL_PTR NeedCopy
+**          Pointer to a boolean receiving gcvTRUE if the memory needs a copy or
+**          gcvFALSE if the memory can be accessed or mapped dircetly.
+*/
+gceSTATUS
+gckOS_QueryNeedCopy(
+    IN gckOS Os,
+    IN gctUINT32 ProcessID,
+    OUT gctBOOL_PTR NeedCopy
+    );
+
+/*******************************************************************************
+**
+**  gckOS_CopyFromUserData
+**
+**  Copy data from user to kernel memory.
+**
+**  INPUT:
+**
+**      gckOS Os
+**          Pointer to an gckOS object.
+**
+**      gctPOINTER KernelPointer
+**          Pointer to kernel memory.
+**
+**      gctPOINTER Pointer
+**          Pointer to user memory.
+**
+**      gctSIZE_T Size
+**          Number of bytes to copy.
+**
+**  OUTPUT:
+**
+**      Nothing.
+*/
+gceSTATUS
+gckOS_CopyFromUserData(
+    IN gckOS Os,
+    IN gctPOINTER KernelPointer,
+    IN gctPOINTER Pointer,
+    IN gctSIZE_T Size
+    );
+
+/*******************************************************************************
+**
+**  gckOS_CopyToUserData
+**
+**  Copy data from kernel to user memory.
+**
+**  INPUT:
+**
+**      gckOS Os
+**          Pointer to an gckOS object.
+**
+**      gctPOINTER KernelPointer
+**          Pointer to kernel memory.
+**
+**      gctPOINTER Pointer
+**          Pointer to user memory.
+**
+**      gctSIZE_T Size
+**          Number of bytes to copy.
+**
+**  OUTPUT:
+**
+**      Nothing.
+*/
+gceSTATUS
+gckOS_CopyToUserData(
+    IN gckOS Os,
+    IN gctPOINTER KernelPointer,
+    IN gctPOINTER Pointer,
+    IN gctSIZE_T Size
+    );
+
+gceSTATUS
+gckOS_SuspendInterrupt(
+    IN gckOS Os
+    );
+
+gceSTATUS
+gckOS_SuspendInterruptEx(
+    IN gckOS Os,
+    IN gceCORE Core
+    );
+
+gceSTATUS
+gckOS_ResumeInterrupt(
+    IN gckOS Os
+    );
+
+gceSTATUS
+gckOS_ResumeInterruptEx(
+    IN gckOS Os,
+    IN gceCORE Core
+    );
+
+/* Get the base address for the physical memory. */
+gceSTATUS
+gckOS_GetBaseAddress(
+    IN gckOS Os,
+    OUT gctUINT32_PTR BaseAddress
+    );
+
+/* Perform a memory copy. */
+gceSTATUS
+gckOS_MemCopy(
+    IN gctPOINTER Destination,
+    IN gctCONST_POINTER Source,
+    IN gctSIZE_T Bytes
+    );
+
+/* Zero memory. */
+gceSTATUS
+gckOS_ZeroMemory(
+    IN gctPOINTER Memory,
+    IN gctSIZE_T Bytes
+    );
+
+/* Device I/O control to the kernel HAL layer. */
+gceSTATUS
+gckOS_DeviceControl(
+    IN gckOS Os,
+    IN gctBOOL FromUser,
+    IN gctUINT32 IoControlCode,
+    IN gctPOINTER InputBuffer,
+    IN gctSIZE_T InputBufferSize,
+    OUT gctPOINTER OutputBuffer,
+    IN gctSIZE_T OutputBufferSize
+    );
+
+/*******************************************************************************
+**
+**  gckOS_GetProcessID
+**
+**  Get current process ID.
+**
+**  INPUT:
+**
+**      Nothing.
+**
+**  OUTPUT:
+**
+**      gctUINT32_PTR ProcessID
+**          Pointer to the variable that receives the process ID.
+*/
+gceSTATUS
+gckOS_GetProcessID(
+    OUT gctUINT32_PTR ProcessID
+    );
+
+gceSTATUS
+gckOS_GetCurrentProcessID(
+    OUT gctUINT32_PTR ProcessID
+    );
+
+/*******************************************************************************
+**
+**  gckOS_GetThreadID
+**
+**  Get current thread ID.
+**
+**  INPUT:
+**
+**      Nothing.
+**
+**  OUTPUT:
+**
+**      gctUINT32_PTR ThreadID
+**          Pointer to the variable that receives the thread ID.
+*/
+gceSTATUS
+gckOS_GetThreadID(
+    OUT gctUINT32_PTR ThreadID
+    );
+
+
+/******************************************************************************\
+********************************** Signal Object *********************************
+\******************************************************************************/
+
+/* Create a signal. */
+gceSTATUS
+gckOS_CreateSignal(
+    IN gckOS Os,
+    IN gctBOOL ManualReset,
+    OUT gctSIGNAL * Signal
+    );
+
+/* Destroy a signal. */
+gceSTATUS
+gckOS_DestroySignal(
+    IN gckOS Os,
+    IN gctSIGNAL Signal
+    );
+
+/* Signal a signal. */
+gceSTATUS
+gckOS_Signal(
+    IN gckOS Os,
+    IN gctSIGNAL Signal,
+    IN gctBOOL State
+    );
+
+/* Wait for a signal. */
+gceSTATUS
+gckOS_WaitSignal(
+    IN gckOS Os,
+    IN gctSIGNAL Signal,
+    IN gctUINT32 Wait
+    );
+
+#ifdef __QNXNTO__
+gceSTATUS
+gckOS_SignalPulse(
+    IN gckOS Os,
+    IN gctSIGNAL Signal
+    );
+
+gceSTATUS
+gckOS_SignalPending(
+    IN gckOS Os,
+    IN gctSIGNAL Signal
+    );
+#endif
+
+/* Map a user signal to the kernel space. */
+gceSTATUS
+gckOS_MapSignal(
+    IN gckOS Os,
+    IN gctSIGNAL Signal,
+    IN gctHANDLE Process,
+    OUT gctSIGNAL * MappedSignal
+    );
+
+/* Unmap a user signal */
+gceSTATUS
+gckOS_UnmapSignal(
+    IN gckOS Os,
+    IN gctSIGNAL Signal
+    );
+
+/* Map user memory. */
+gceSTATUS
+gckOS_MapUserMemory(
+    IN gckOS Os,
+    IN gceCORE Core,
+    IN gctPOINTER Memory,
+    IN gctUINT32 Physical,
+    IN gctSIZE_T Size,
+    OUT gctPOINTER * Info,
+    OUT gctUINT32_PTR Address
+    );
+
+/* Unmap user memory. */
+gceSTATUS
+gckOS_UnmapUserMemory(
+    IN gckOS Os,
+    IN gceCORE Core,
+    IN gctPOINTER Memory,
+    IN gctSIZE_T Size,
+    IN gctPOINTER Info,
+    IN gctUINT32 Address
+    );
+
+/* Wrap a user memory to gctPHYS_ADDR. */
+gceSTATUS
+gckOS_WrapMemory(
+    IN gckOS Os,
+    IN gcsUSER_MEMORY_DESC_PTR Desc,
+    OUT gctSIZE_T *Bytes,
+    OUT gctPHYS_ADDR * Physical
+    );
+
+/******************************************************************************\
+************************** Android Native Fence Sync ***************************
+\******************************************************************************/
+gceSTATUS
+gckOS_CreateSyncTimeline(
+    IN gckOS Os,
+    OUT gctHANDLE * Timeline
+    );
+
+gceSTATUS
+gckOS_DestroySyncTimeline(
+    IN gckOS Os,
+    IN gctHANDLE Timeline
+    );
+
+gceSTATUS
+gckOS_CreateSyncPoint(
+    IN gckOS Os,
+    OUT gctSYNC_POINT * SyncPoint
+    );
+
+gceSTATUS
+gckOS_ReferenceSyncPoint(
+    IN gckOS Os,
+    IN gctSYNC_POINT SyncPoint
+    );
+
+gceSTATUS
+gckOS_DestroySyncPoint(
+    IN gckOS Os,
+    IN gctSYNC_POINT SyncPoint
+    );
+
+gceSTATUS
+gckOS_SignalSyncPoint(
+    IN gckOS Os,
+    IN gctSYNC_POINT SyncPoint
+    );
+
+gceSTATUS
+gckOS_QuerySyncPoint(
+    IN gckOS Os,
+    IN gctSYNC_POINT SyncPoint,
+    OUT gctBOOL_PTR State
+    );
+
+gceSTATUS
+gckOS_CreateNativeFence(
+    IN gckOS Os,
+    IN gctHANDLE Timeline,
+    IN gctSYNC_POINT SyncPoint,
+    OUT gctINT * FenceFD
+    );
+
+gceSTATUS
+gckOS_WaitNativeFence(
+    IN gckOS Os,
+    IN gctHANDLE Timeline,
+    IN gctINT FenceFD,
+    IN gctUINT32 Timeout
+    );
+
+#if !USE_NEW_LINUX_SIGNAL
+/* Create signal to be used in the user space. */
+gceSTATUS
+gckOS_CreateUserSignal(
+    IN gckOS Os,
+    IN gctBOOL ManualReset,
+    OUT gctINT * SignalID
+    );
+
+/* Destroy signal used in the user space. */
+gceSTATUS
+gckOS_DestroyUserSignal(
+    IN gckOS Os,
+    IN gctINT SignalID
+    );
+
+/* Wait for signal used in the user space. */
+gceSTATUS
+gckOS_WaitUserSignal(
+    IN gckOS Os,
+    IN gctINT SignalID,
+    IN gctUINT32 Wait
+    );
+
+/* Signal a signal used in the user space. */
+gceSTATUS
+gckOS_SignalUserSignal(
+    IN gckOS Os,
+    IN gctINT SignalID,
+    IN gctBOOL State
+    );
+#endif /* USE_NEW_LINUX_SIGNAL */
+
+/* Set a signal owned by a process. */
+#if defined(__QNXNTO__)
+gceSTATUS
+gckOS_UserSignal(
+    IN gckOS Os,
+    IN gctSIGNAL Signal,
+    IN gctINT Recvid,
+    IN gctINT Coid
+    );
+#else
+gceSTATUS
+gckOS_UserSignal(
+    IN gckOS Os,
+    IN gctSIGNAL Signal,
+    IN gctHANDLE Process
+    );
+#endif
+
+/******************************************************************************\
+** Cache Support
+*/
+
+gceSTATUS
+gckOS_CacheClean(
+    gckOS Os,
+    gctUINT32 ProcessID,
+    gctPHYS_ADDR Handle,
+    gctPHYS_ADDR_T Physical,
+    gctPOINTER Logical,
+    gctSIZE_T Bytes
+    );
+
+gceSTATUS
+gckOS_CacheFlush(
+    gckOS Os,
+    gctUINT32 ProcessID,
+    gctPHYS_ADDR Handle,
+    gctPHYS_ADDR_T Physical,
+    gctPOINTER Logical,
+    gctSIZE_T Bytes
+    );
+
+gceSTATUS
+gckOS_CacheInvalidate(
+    gckOS Os,
+    gctUINT32 ProcessID,
+    gctPHYS_ADDR Handle,
+    gctPHYS_ADDR_T Physical,
+    gctPOINTER Logical,
+    gctSIZE_T Bytes
+    );
+
+gceSTATUS
+gckOS_CPUPhysicalToGPUPhysical(
+    IN gckOS Os,
+    IN gctPHYS_ADDR_T CPUPhysical,
+    IN gctPHYS_ADDR_T * GPUPhysical
+    );
+
+gceSTATUS
+gckOS_GPUPhysicalToCPUPhysical(
+    IN gckOS Os,
+    IN gctUINT32 GPUPhysical,
+    IN gctUINT32_PTR CPUPhysical
+    );
+
+gceSTATUS
+gckOS_QueryOption(
+    IN gckOS Os,
+    IN gctCONST_STRING Option,
+    OUT gctUINT32 * Value
+    );
+
+/******************************************************************************\
+** Debug Support
+*/
+
+void
+gckOS_SetDebugLevel(
+    IN gctUINT32 Level
+    );
+
+void
+gckOS_SetDebugZone(
+    IN gctUINT32 Zone
+    );
+
+void
+gckOS_SetDebugLevelZone(
+    IN gctUINT32 Level,
+    IN gctUINT32 Zone
+    );
+
+void
+gckOS_SetDebugZones(
+    IN gctUINT32 Zones,
+    IN gctBOOL Enable
+    );
+
+void
+gckOS_SetDebugFile(
+    IN gctCONST_STRING FileName
+    );
+
+/*******************************************************************************
+** Broadcast interface.
+*/
+
+typedef enum _gceBROADCAST
+{
+    /* GPU might be idle. */
+    gcvBROADCAST_GPU_IDLE,
+
+    /* A commit is going to happen. */
+    gcvBROADCAST_GPU_COMMIT,
+
+    /* GPU seems to be stuck. */
+    gcvBROADCAST_GPU_STUCK,
+
+    /* First process gets attached. */
+    gcvBROADCAST_FIRST_PROCESS,
+
+    /* Last process gets detached. */
+    gcvBROADCAST_LAST_PROCESS,
+
+    /* AXI bus error. */
+    gcvBROADCAST_AXI_BUS_ERROR,
+
+    /* Out of memory. */
+    gcvBROADCAST_OUT_OF_MEMORY,
+}
+gceBROADCAST;
+
+gceSTATUS
+gckOS_Broadcast(
+    IN gckOS Os,
+    IN gckHARDWARE Hardware,
+    IN gceBROADCAST Reason
+    );
+
+gceSTATUS
+gckOS_BroadcastHurry(
+    IN gckOS Os,
+    IN gckHARDWARE Hardware,
+    IN gctUINT Urgency
+    );
+
+gceSTATUS
+gckOS_BroadcastCalibrateSpeed(
+    IN gckOS Os,
+    IN gckHARDWARE Hardware,
+    IN gctUINT Idle,
+    IN gctUINT Time
+    );
+
+/*******************************************************************************
+**
+**  gckOS_SetGPUPower
+**
+**  Set the power of the GPU on or off.
+**
+**  INPUT:
+**
+**      gckOS Os
+**          Pointer to a gckOS object.
+**
+**      gceCORE Core
+**          GPU whose power is set.
+**
+**      gctBOOL Clock
+**          gcvTRUE to turn on the clock, or gcvFALSE to turn off the clock.
+**
+**      gctBOOL Power
+**          gcvTRUE to turn on the power, or gcvFALSE to turn off the power.
+**
+**  OUTPUT:
+**
+**      Nothing.
+*/
+gceSTATUS
+gckOS_SetGPUPower(
+    IN gckOS Os,
+    IN gceCORE Core,
+    IN gctBOOL Clock,
+    IN gctBOOL Power
+    );
+
+gceSTATUS
+gckOS_ResetGPU(
+    IN gckOS Os,
+    IN gceCORE Core
+    );
+
+gceSTATUS
+gckOS_PrepareGPUFrequency(
+    IN gckOS Os,
+    IN gceCORE Core
+    );
+
+gceSTATUS
+gckOS_FinishGPUFrequency(
+    IN gckOS Os,
+    IN gceCORE Core
+    );
+
+gceSTATUS
+gckOS_QueryGPUFrequency(
+    IN gckOS Os,
+    IN gceCORE Core,
+    OUT gctUINT32 * Frequency,
+    OUT gctUINT8 * Scale
+    );
+
+gceSTATUS
+gckOS_SetGPUFrequency(
+    IN gckOS Os,
+    IN gceCORE Core,
+    IN gctUINT8 Scale
+    );
+
+/*******************************************************************************
+** Semaphores.
+*/
+
+/* Create a new semaphore. */
+gceSTATUS
+gckOS_CreateSemaphore(
+    IN gckOS Os,
+    OUT gctPOINTER * Semaphore
+    );
+
+
+/* Delete a semahore. */
+gceSTATUS
+gckOS_DestroySemaphore(
+    IN gckOS Os,
+    IN gctPOINTER Semaphore
+    );
+
+/* Acquire a semahore. */
+gceSTATUS
+gckOS_AcquireSemaphore(
+    IN gckOS Os,
+    IN gctPOINTER Semaphore
+    );
+
+/* Try to acquire a semahore. */
+gceSTATUS
+gckOS_TryAcquireSemaphore(
+    IN gckOS Os,
+    IN gctPOINTER Semaphore
+    );
+
+/* Release a semahore. */
+gceSTATUS
+gckOS_ReleaseSemaphore(
+    IN gckOS Os,
+    IN gctPOINTER Semaphore
+    );
+
+/*******************************************************************************
+** Timer API.
+*/
+
+typedef void (*gctTIMERFUNCTION)(gctPOINTER);
+
+/* Create a timer. */
+gceSTATUS
+gckOS_CreateTimer(
+    IN gckOS Os,
+    IN gctTIMERFUNCTION Function,
+    IN gctPOINTER Data,
+    OUT gctPOINTER * Timer
+    );
+
+/* Destory a timer. */
+gceSTATUS
+gckOS_DestroyTimer(
+    IN gckOS Os,
+    IN gctPOINTER Timer
+    );
+
+/* Start a timer. */
+gceSTATUS
+gckOS_StartTimer(
+    IN gckOS Os,
+    IN gctPOINTER Timer,
+    IN gctUINT32 Delay
+    );
+
+/* Stop a timer. */
+gceSTATUS
+gckOS_StopTimer(
+    IN gckOS Os,
+    IN gctPOINTER Timer
+    );
+
+/******************************************************************************\
+********************************* gckHEAP Object ********************************
+\******************************************************************************/
+
+typedef struct _gckHEAP *       gckHEAP;
+
+/* Construct a new gckHEAP object. */
+gceSTATUS
+gckHEAP_Construct(
+    IN gckOS Os,
+    IN gctSIZE_T AllocationSize,
+    OUT gckHEAP * Heap
+    );
+
+/* Destroy an gckHEAP object. */
+gceSTATUS
+gckHEAP_Destroy(
+    IN gckHEAP Heap
+    );
+
+/* Allocate memory. */
+gceSTATUS
+gckHEAP_Allocate(
+    IN gckHEAP Heap,
+    IN gctSIZE_T Bytes,
+    OUT gctPOINTER * Node
+    );
+
+/* Free memory. */
+gceSTATUS
+gckHEAP_Free(
+    IN gckHEAP Heap,
+    IN gctPOINTER Node
+    );
+
+/* Profile the heap. */
+gceSTATUS
+gckHEAP_ProfileStart(
+    IN gckHEAP Heap
+    );
+
+gceSTATUS
+gckHEAP_ProfileEnd(
+    IN gckHEAP Heap,
+    IN gctCONST_STRING Title
+    );
+
+
+/******************************************************************************\
+******************************** gckVIDMEM Object ******************************
+\******************************************************************************/
+
+typedef struct _gckVIDMEM *         gckVIDMEM;
+typedef struct _gckKERNEL *         gckKERNEL;
+typedef struct _gckDB *             gckDB;
+typedef struct _gckDVFS *           gckDVFS;
+
+/* Construct a new gckVIDMEM object. */
+gceSTATUS
+gckVIDMEM_Construct(
+    IN gckOS Os,
+    IN gctUINT32 BaseAddress,
+    IN gctSIZE_T Bytes,
+    IN gctSIZE_T Threshold,
+    IN gctSIZE_T Banking,
+    OUT gckVIDMEM * Memory
+    );
+
+/* Destroy an gckVDIMEM object. */
+gceSTATUS
+gckVIDMEM_Destroy(
+    IN gckVIDMEM Memory
+    );
+
+/* Allocate linear memory. */
+gceSTATUS
+gckVIDMEM_AllocateLinear(
+    IN gckKERNEL Kernel,
+    IN gckVIDMEM Memory,
+    IN gctSIZE_T Bytes,
+    IN gctUINT32 Alignment,
+    IN gceSURF_TYPE Type,
+    IN gctBOOL Specified,
+    OUT gcuVIDMEM_NODE_PTR * Node
+    );
+
+/* Free memory. */
+gceSTATUS
+gckVIDMEM_Free(
+    IN gckKERNEL Kernel,
+    IN gcuVIDMEM_NODE_PTR Node
+    );
+
+/* Lock memory. */
+gceSTATUS
+gckVIDMEM_Lock(
+    IN gckKERNEL Kernel,
+    IN gckVIDMEM_NODE Node,
+    IN gctBOOL Cacheable,
+    OUT gctUINT32 * Address,
+    OUT gctUINT32 * Gid,
+    OUT gctUINT64 * PhysicalAddress
+    );
+
+/* Unlock memory. */
+gceSTATUS
+gckVIDMEM_Unlock(
+    IN gckKERNEL Kernel,
+    IN gckVIDMEM_NODE Node,
+    IN gceSURF_TYPE Type,
+    IN OUT gctBOOL * Asynchroneous
+    );
+
+/* Construct a gcuVIDMEM_NODE union for virtual memory. */
+gceSTATUS
+gckVIDMEM_ConstructVirtual(
+    IN gckKERNEL Kernel,
+    IN gctUINT32 Flag,
+    IN gctSIZE_T Bytes,
+    OUT gcuVIDMEM_NODE_PTR * Node
+    );
+
+/* Destroy a gcuVIDMEM_NODE union for virtual memory. */
+gceSTATUS
+gckVIDMEM_DestroyVirtual(
+    IN gcuVIDMEM_NODE_PTR Node
+    );
+
+/******************************************************************************\
+******************************** gckKERNEL Object ******************************
+\******************************************************************************/
+
+struct _gcsHAL_INTERFACE;
+
+/* Notifications. */
+typedef enum _gceNOTIFY
+{
+    gcvNOTIFY_INTERRUPT,
+    gcvNOTIFY_COMMAND_QUEUE,
+}
+gceNOTIFY;
+
+/* Flush flags. */
+typedef enum _gceKERNEL_FLUSH
+{
+    gcvFLUSH_COLOR              = 0x01,
+    gcvFLUSH_DEPTH              = 0x02,
+    gcvFLUSH_TEXTURE            = 0x04,
+    gcvFLUSH_2D                 = 0x08,
+    gcvFLUSH_TILE_STATUS        = 0x20,
+    gcvFLUSH_ALL                = gcvFLUSH_COLOR
+                                | gcvFLUSH_DEPTH
+                                | gcvFLUSH_TEXTURE
+                                | gcvFLUSH_2D
+                                | gcvFLUSH_TILE_STATUS
+}
+gceKERNEL_FLUSH;
+
+/* Construct a new gckKERNEL object. */
+gceSTATUS
+gckKERNEL_Construct(
+    IN gckOS Os,
+    IN gceCORE Core,
+    IN gctPOINTER Context,
+    IN gckDB SharedDB,
+    OUT gckKERNEL * Kernel
+    );
+
+/* Destroy an gckKERNEL object. */
+gceSTATUS
+gckKERNEL_Destroy(
+    IN gckKERNEL Kernel
+    );
+
+/* Dispatch a user-level command. */
+gceSTATUS
+gckKERNEL_Dispatch(
+    IN gckKERNEL Kernel,
+    IN gctBOOL FromUser,
+    IN OUT struct _gcsHAL_INTERFACE * Interface
+    );
+
+/* Query Database requirements. */
+gceSTATUS
+    gckKERNEL_QueryDatabase(
+    IN gckKERNEL Kernel,
+    IN gctUINT32 ProcessID,
+    IN OUT gcsHAL_INTERFACE * Interface
+    );
+
+/* Query the video memory. */
+gceSTATUS
+gckKERNEL_QueryVideoMemory(
+    IN gckKERNEL Kernel,
+    OUT struct _gcsHAL_INTERFACE * Interface
+    );
+
+/* Lookup the gckVIDMEM object for a pool. */
+gceSTATUS
+gckKERNEL_GetVideoMemoryPool(
+    IN gckKERNEL Kernel,
+    IN gcePOOL Pool,
+    OUT gckVIDMEM * VideoMemory
+    );
+
+gceSTATUS
+gckKERNEL_AllocateLinearMemory(
+    IN gckKERNEL Kernel,
+    IN gctUINT32 ProcessID,
+    IN OUT gcePOOL * Pool,
+    IN gctSIZE_T Bytes,
+    IN gctUINT32 Alignment,
+    IN gceSURF_TYPE Type,
+    IN gctUINT32 Flag,
+    OUT gctUINT32 * Node
+    );
+
+gceSTATUS
+gckKERNEL_ReleaseVideoMemory(
+    IN gckKERNEL Kernel,
+    IN gctUINT32 ProcessID,
+    IN gctUINT32 Handle
+    );
+
+gceSTATUS
+gckKERNEL_LockVideoMemory(
+    IN gckKERNEL Kernel,
+    IN gceCORE Core,
+    IN gctUINT32 ProcessID,
+    IN gctBOOL FromUser,
+    IN OUT gcsHAL_INTERFACE * Interface
+    );
+
+gceSTATUS
+gckKERNEL_UnlockVideoMemory(
+    IN gckKERNEL Kernel,
+    IN gctUINT32 ProcessID,
+    IN OUT gcsHAL_INTERFACE * Interface
+    );
+
+/* Map video memory. */
+gceSTATUS
+gckKERNEL_MapVideoMemory(
+    IN gckKERNEL Kernel,
+    IN gctBOOL InUserSpace,
+    IN gctUINT32 Address,
+#ifdef __QNXNTO__
+    IN gctUINT32 Pid,
+    IN gctUINT32 Bytes,
+#endif
+    OUT gctPOINTER * Logical
+    );
+
+/* Map video memory. */
+gceSTATUS
+gckKERNEL_MapVideoMemoryEx(
+    IN gckKERNEL Kernel,
+    IN gceCORE Core,
+    IN gctBOOL InUserSpace,
+    IN gctUINT32 Address,
+#ifdef __QNXNTO__
+    IN gctUINT32 Pid,
+    IN gctUINT32 Bytes,
+#endif
+    OUT gctPOINTER * Logical
+    );
+
+#ifdef __QNXNTO__
+/* Unmap video memory. */
+gceSTATUS
+gckKERNEL_UnmapVideoMemory(
+    IN gckKERNEL Kernel,
+    IN gctPOINTER Logical,
+    IN gctUINT32 Pid,
+    IN gctUINT32 Bytes
+    );
+#endif
+
+/* Map memory. */
+gceSTATUS
+gckKERNEL_MapMemory(
+    IN gckKERNEL Kernel,
+    IN gctPHYS_ADDR Physical,
+    IN gctSIZE_T Bytes,
+    OUT gctPOINTER * Logical
+    );
+
+/* Unmap memory. */
+gceSTATUS
+gckKERNEL_UnmapMemory(
+    IN gckKERNEL Kernel,
+    IN gctPHYS_ADDR Physical,
+    IN gctSIZE_T Bytes,
+    IN gctPOINTER Logical
+    );
+
+/* Notification of events. */
+gceSTATUS
+gckKERNEL_Notify(
+    IN gckKERNEL Kernel,
+    IN gceNOTIFY Notifcation,
+    IN gctBOOL Data
+    );
+
+gceSTATUS
+gckKERNEL_QuerySettings(
+    IN gckKERNEL Kernel,
+    OUT gcsKERNEL_SETTINGS * Settings
+    );
+
+/*******************************************************************************
+**
+**  gckKERNEL_Recovery
+**
+**  Try to recover the GPU from a fatal error.
+**
+**  INPUT:
+**
+**      gckKERNEL Kernel
+**          Pointer to an gckKERNEL object.
+**
+**  OUTPUT:
+**
+**      Nothing.
+*/
+gceSTATUS
+gckKERNEL_Recovery(
+    IN gckKERNEL Kernel
+    );
+
+/* Set the value of timeout on HW operation. */
+void
+gckKERNEL_SetTimeOut(
+    IN gckKERNEL Kernel,
+    IN gctUINT32 timeOut
+    );
+
+/* Get access to the user data. */
+gceSTATUS
+gckKERNEL_OpenUserData(
+    IN gckKERNEL Kernel,
+    IN gctBOOL NeedCopy,
+    IN gctPOINTER StaticStorage,
+    IN gctPOINTER UserPointer,
+    IN gctSIZE_T Size,
+    OUT gctPOINTER * KernelPointer
+    );
+
+/* Release resources associated with the user data connection. */
+gceSTATUS
+gckKERNEL_CloseUserData(
+    IN gckKERNEL Kernel,
+    IN gctBOOL NeedCopy,
+    IN gctBOOL FlushData,
+    IN gctPOINTER UserPointer,
+    IN gctSIZE_T Size,
+    OUT gctPOINTER * KernelPointer
+    );
+
+gceSTATUS
+gckDVFS_Construct(
+    IN gckHARDWARE Hardware,
+    OUT gckDVFS * Frequency
+    );
+
+gceSTATUS
+gckDVFS_Destroy(
+    IN gckDVFS Dvfs
+    );
+
+gceSTATUS
+gckDVFS_Start(
+    IN gckDVFS Dvfs
+    );
+
+gceSTATUS
+gckDVFS_Stop(
+    IN gckDVFS Dvfs
+    );
+
+/******************************************************************************\
+******************************* gckHARDWARE Object *****************************
+\******************************************************************************/
+
+/* Construct a new gckHARDWARE object. */
+gceSTATUS
+gckHARDWARE_Construct(
+    IN gckOS Os,
+    IN gceCORE Core,
+    OUT gckHARDWARE * Hardware
+    );
+
+/* Destroy an gckHARDWARE object. */
+gceSTATUS
+gckHARDWARE_Destroy(
+    IN gckHARDWARE Hardware
+    );
+
+/* Get hardware type. */
+gceSTATUS
+gckHARDWARE_GetType(
+    IN gckHARDWARE Hardware,
+    OUT gceHARDWARE_TYPE * Type
+    );
+
+/* Query system memory requirements. */
+gceSTATUS
+gckHARDWARE_QuerySystemMemory(
+    IN gckHARDWARE Hardware,
+    OUT gctSIZE_T * SystemSize,
+    OUT gctUINT32 * SystemBaseAddress
+    );
+
+/* Build virtual address. */
+gceSTATUS
+gckHARDWARE_BuildVirtualAddress(
+    IN gckHARDWARE Hardware,
+    IN gctUINT32 Index,
+    IN gctUINT32 Offset,
+    OUT gctUINT32 * Address
+    );
+
+/* Query command buffer requirements. */
+gceSTATUS
+gckHARDWARE_QueryCommandBuffer(
+    IN gckHARDWARE Hardware,
+    OUT gctUINT32 * Alignment,
+    OUT gctUINT32 * ReservedHead,
+    OUT gctUINT32 * ReservedTail
+    );
+
+/* Add a WAIT/LINK pair in the command queue. */
+gceSTATUS
+gckHARDWARE_WaitLink(
+    IN gckHARDWARE Hardware,
+    IN gctPOINTER Logical,
+    IN gctUINT32 Offset,
+    IN OUT gctUINT32 * Bytes,
+    OUT gctUINT32 * WaitOffset,
+    OUT gctUINT32 * WaitBytes
+    );
+
+/* Kickstart the command processor. */
+gceSTATUS
+gckHARDWARE_Execute(
+    IN gckHARDWARE Hardware,
+    IN gctUINT32 Address,
+    IN gctSIZE_T Bytes
+    );
+
+/* Add an END command in the command queue. */
+gceSTATUS
+gckHARDWARE_End(
+    IN gckHARDWARE Hardware,
+    IN gctPOINTER Logical,
+    IN OUT gctUINT32 * Bytes
+    );
+
+
+/* Add a NOP command in the command queue. */
+gceSTATUS
+gckHARDWARE_Nop(
+    IN gckHARDWARE Hardware,
+    IN gctPOINTER Logical,
+    IN OUT gctSIZE_T * Bytes
+    );
+
+/* Add a PIPESELECT command in the command queue. */
+gceSTATUS
+gckHARDWARE_PipeSelect(
+    IN gckHARDWARE Hardware,
+    IN gctPOINTER Logical,
+    IN gcePIPE_SELECT Pipe,
+    IN OUT gctUINT32 * Bytes
+    );
+
+/* Add a LINK command in the command queue. */
+gceSTATUS
+gckHARDWARE_Link(
+    IN gckHARDWARE Hardware,
+    IN gctPOINTER Logical,
+    IN gctUINT32 FetchAddress,
+    IN gctUINT32 FetchSize,
+    IN OUT gctUINT32 * Bytes,
+    OUT gctUINT32 * Low,
+    OUT gctUINT32 * High
+    );
+
+/* Add an EVENT command in the command queue. */
+gceSTATUS
+gckHARDWARE_Event(
+    IN gckHARDWARE Hardware,
+    IN gctPOINTER Logical,
+    IN gctUINT8 Event,
+    IN gceKERNEL_WHERE FromWhere,
+    IN OUT gctUINT32 * Bytes
+    );
+
+/* Query the available memory. */
+gceSTATUS
+gckHARDWARE_QueryMemory(
+    IN gckHARDWARE Hardware,
+    OUT gctSIZE_T * InternalSize,
+    OUT gctUINT32 * InternalBaseAddress,
+    OUT gctUINT32 * InternalAlignment,
+    OUT gctSIZE_T * ExternalSize,
+    OUT gctUINT32 * ExternalBaseAddress,
+    OUT gctUINT32 * ExternalAlignment,
+    OUT gctUINT32 * HorizontalTileSize,
+    OUT gctUINT32 * VerticalTileSize
+    );
+
+/* Query the identity of the hardware. */
+gceSTATUS
+gckHARDWARE_QueryChipIdentity(
+    IN gckHARDWARE Hardware,
+    OUT gcsHAL_QUERY_CHIP_IDENTITY_PTR Identity
+    );
+
+/* Query the shader uniforms support. */
+gceSTATUS
+gckHARDWARE_QueryShaderCaps(
+    IN gckHARDWARE Hardware,
+    OUT gctUINT * VertexUniforms,
+    OUT gctUINT * FragmentUniforms,
+    OUT gctBOOL * UnifiedUnforms
+    );
+
+/* Split a harwdare specific address into API stuff. */
+gceSTATUS
+gckHARDWARE_SplitMemory(
+    IN gckHARDWARE Hardware,
+    IN gctUINT32 Address,
+    OUT gcePOOL * Pool,
+    OUT gctUINT32 * Offset
+    );
+
+/* Update command queue tail pointer. */
+gceSTATUS
+gckHARDWARE_UpdateQueueTail(
+    IN gckHARDWARE Hardware,
+    IN gctPOINTER Logical,
+    IN gctUINT32 Offset
+    );
+
+/* Convert logical address to hardware specific address. */
+gceSTATUS
+gckHARDWARE_ConvertLogical(
+    IN gckHARDWARE Hardware,
+    IN gctPOINTER Logical,
+    IN gctBOOL InUserSpace,
+    OUT gctUINT32 * Address
+    );
+
+/* Interrupt manager. */
+gceSTATUS
+gckHARDWARE_Interrupt(
+    IN gckHARDWARE Hardware,
+    IN gctBOOL InterruptValid
+    );
+
+/* Program MMU. */
+gceSTATUS
+gckHARDWARE_SetMMU(
+    IN gckHARDWARE Hardware,
+    IN gctPOINTER Logical
+    );
+
+/* Flush the MMU. */
+gceSTATUS
+gckHARDWARE_FlushMMU(
+    IN gckHARDWARE Hardware
+    );
+
+/* Set the page table base address. */
+gceSTATUS
+gckHARDWARE_SetMMUv2(
+    IN gckHARDWARE Hardware,
+    IN gctBOOL Enable,
+    IN gctPOINTER MtlbAddress,
+    IN gceMMU_MODE Mode,
+    IN gctPOINTER SafeAddress,
+    IN gctBOOL FromPower
+    );
+
+#if gcdPROCESS_ADDRESS_SPACE
+/* Configure mmu configuration. */
+gceSTATUS
+gckHARDWARE_ConfigMMU(
+    IN gckHARDWARE Hardware,
+    IN gctPOINTER Logical,
+    IN gctPOINTER MtlbLogical,
+    IN gctUINT32 Offset,
+    IN OUT gctSIZE_T * Bytes,
+    OUT gctSIZE_T * WaitLinkOffset,
+    OUT gctSIZE_T * WaitLinkBytes
+    );
+#endif
+
+/* Get idle register. */
+gceSTATUS
+gckHARDWARE_GetIdle(
+    IN gckHARDWARE Hardware,
+    IN gctBOOL Wait,
+    OUT gctUINT32 * Data
+    );
+
+/* Flush the caches. */
+gceSTATUS
+gckHARDWARE_Flush(
+    IN gckHARDWARE Hardware,
+    IN gceKERNEL_FLUSH Flush,
+    IN gctPOINTER Logical,
+    IN OUT gctUINT32 * Bytes
+    );
+
+/* Enable/disable fast clear. */
+gceSTATUS
+gckHARDWARE_SetFastClear(
+    IN gckHARDWARE Hardware,
+    IN gctINT Enable,
+    IN gctINT Compression
+    );
+
+gceSTATUS
+gckHARDWARE_ReadInterrupt(
+    IN gckHARDWARE Hardware,
+    OUT gctUINT32_PTR IDs
+    );
+
+/* Power management. */
+gceSTATUS
+gckHARDWARE_SetPowerManagementState(
+    IN gckHARDWARE Hardware,
+    IN gceCHIPPOWERSTATE State
+    );
+
+gceSTATUS
+gckHARDWARE_QueryPowerManagementState(
+    IN gckHARDWARE Hardware,
+    OUT gceCHIPPOWERSTATE* State
+    );
+
+gceSTATUS
+gckHARDWARE_SetPowerManagement(
+    IN gckHARDWARE Hardware,
+    IN gctBOOL PowerManagement
+    );
+
+gceSTATUS
+gckHARDWARE_SetGpuProfiler(
+    IN gckHARDWARE Hardware,
+    IN gctBOOL GpuProfiler
+    );
+
+#if gcdENABLE_FSCALE_VAL_ADJUST
+gceSTATUS
+gckHARDWARE_SetFscaleValue(
+    IN gckHARDWARE Hardware,
+    IN gctUINT32   FscaleValue
+    );
+
+gceSTATUS
+gckHARDWARE_GetFscaleValue(
+    IN gckHARDWARE Hardware,
+    IN gctUINT * FscaleValue,
+    IN gctUINT * MinFscaleValue,
+    IN gctUINT * MaxFscaleValue
+    );
+
+gceSTATUS
+gckHARDWARE_SetMinFscaleValue(
+    IN gckHARDWARE Hardware,
+    IN gctUINT MinFscaleValue
+    );
+#endif
+
+#if gcdPOWEROFF_TIMEOUT
+gceSTATUS
+gckHARDWARE_SetPowerOffTimeout(
+    IN gckHARDWARE  Hardware,
+    IN gctUINT32    Timeout
+);
+
+gceSTATUS
+gckHARDWARE_QueryPowerOffTimeout(
+    IN gckHARDWARE  Hardware,
+    OUT gctUINT32*  Timeout
+);
+#endif
+
+/* Profile 2D Engine. */
+gceSTATUS
+gckHARDWARE_ProfileEngine2D(
+    IN gckHARDWARE Hardware,
+    OUT gcs2D_PROFILE_PTR Profile
+    );
+
+gceSTATUS
+gckHARDWARE_InitializeHardware(
+    IN gckHARDWARE Hardware
+    );
+
+gceSTATUS
+gckHARDWARE_Reset(
+    IN gckHARDWARE Hardware
+    );
+
+typedef gceSTATUS (*gctISRMANAGERFUNC)(gctPOINTER Context);
+
+gceSTATUS
+gckHARDWARE_SetIsrManager(
+    IN gckHARDWARE Hardware,
+    IN gctISRMANAGERFUNC StartIsr,
+    IN gctISRMANAGERFUNC StopIsr,
+    IN gctPOINTER Context
+    );
+
+/* Start a composition. */
+gceSTATUS
+gckHARDWARE_Compose(
+    IN gckHARDWARE Hardware,
+    IN gctUINT32 ProcessID,
+    IN gctPHYS_ADDR Physical,
+    IN gctPOINTER Logical,
+    IN gctSIZE_T Offset,
+    IN gctSIZE_T Size,
+    IN gctUINT8 EventID
+    );
+
+/* Check for Hardware features. */
+gceSTATUS
+gckHARDWARE_IsFeatureAvailable(
+    IN gckHARDWARE Hardware,
+    IN gceFEATURE Feature
+    );
+
+gceSTATUS
+gckHARDWARE_DumpMMUException(
+    IN gckHARDWARE Hardware
+    );
+
+gceSTATUS
+gckHARDWARE_DumpGPUState(
+    IN gckHARDWARE Hardware
+    );
+
+gceSTATUS
+gckHARDWARE_InitDVFS(
+    IN gckHARDWARE Hardware
+    );
+
+gceSTATUS
+gckHARDWARE_QueryLoad(
+    IN gckHARDWARE Hardware,
+    OUT gctUINT32 * Load
+    );
+
+gceSTATUS
+gckHARDWARE_SetDVFSPeroid(
+    IN gckHARDWARE Hardware,
+    IN gctUINT32 Frequency
+    );
+
+gceSTATUS
+gckHARDWARE_PrepareFunctions(
+    gckHARDWARE Hardware
+    );
+
+gceSTATUS
+gckHARDWARE_SetMMUStates(
+    IN gckHARDWARE Hardware,
+    IN gctPOINTER MtlbAddress,
+    IN gceMMU_MODE Mode,
+    IN gctPOINTER SafeAddress,
+    IN gctPOINTER Logical,
+    IN OUT gctUINT32 * Bytes
+    );
+
+gceSTATUS
+gckHARDWARE_QueryStateTimer(
+    IN gckHARDWARE Hardware,
+    OUT gctUINT64_PTR Start,
+    OUT gctUINT64_PTR End,
+    OUT gctUINT64_PTR On,
+    OUT gctUINT64_PTR Off,
+    OUT gctUINT64_PTR Idle,
+    OUT gctUINT64_PTR Suspend
+    );
+
+/******************************************************************************\
+***************************** gckINTERRUPT Object ******************************
+\******************************************************************************/
+
+typedef struct _gckINTERRUPT *  gckINTERRUPT;
+
+typedef gceSTATUS (* gctINTERRUPT_HANDLER)(
+    IN gckKERNEL Kernel
+    );
+
+gceSTATUS
+gckINTERRUPT_Construct(
+    IN gckKERNEL Kernel,
+    OUT gckINTERRUPT * Interrupt
+    );
+
+gceSTATUS
+gckINTERRUPT_Destroy(
+    IN gckINTERRUPT Interrupt
+    );
+
+gceSTATUS
+gckINTERRUPT_SetHandler(
+    IN gckINTERRUPT Interrupt,
+    IN OUT gctINT32_PTR Id,
+    IN gctINTERRUPT_HANDLER Handler
+    );
+
+gceSTATUS
+gckINTERRUPT_Notify(
+    IN gckINTERRUPT Interrupt,
+    IN gctBOOL Valid
+    );
+/******************************************************************************\
+******************************** gckEVENT Object *******************************
+\******************************************************************************/
+
+typedef struct _gckEVENT *      gckEVENT;
+
+/* Construct a new gckEVENT object. */
+gceSTATUS
+gckEVENT_Construct(
+    IN gckKERNEL Kernel,
+    OUT gckEVENT * Event
+    );
+
+/* Destroy an gckEVENT object. */
+gceSTATUS
+gckEVENT_Destroy(
+    IN gckEVENT Event
+    );
+
+/* Reserve the next available hardware event. */
+gceSTATUS
+gckEVENT_GetEvent(
+    IN gckEVENT Event,
+    IN gctBOOL Wait,
+    OUT gctUINT8 * EventID,
+    IN gceKERNEL_WHERE Source
+   );
+
+/* Add a new event to the list of events. */
+gceSTATUS
+gckEVENT_AddList(
+    IN gckEVENT Event,
+    IN gcsHAL_INTERFACE_PTR Interface,
+    IN gceKERNEL_WHERE FromWhere,
+    IN gctBOOL AllocateAllowed,
+    IN gctBOOL FromKernel
+    );
+
+/* Schedule a FreeNonPagedMemory event. */
+gceSTATUS
+gckEVENT_FreeNonPagedMemory(
+    IN gckEVENT Event,
+    IN gctSIZE_T Bytes,
+    IN gctPHYS_ADDR Physical,
+    IN gctPOINTER Logical,
+    IN gceKERNEL_WHERE FromWhere
+    );
+
+/* Schedule a FreeContiguousMemory event. */
+gceSTATUS
+gckEVENT_FreeContiguousMemory(
+    IN gckEVENT Event,
+    IN gctSIZE_T Bytes,
+    IN gctPHYS_ADDR Physical,
+    IN gctPOINTER Logical,
+    IN gceKERNEL_WHERE FromWhere
+    );
+
+/* Schedule a FreeVideoMemory event. */
+gceSTATUS
+gckEVENT_FreeVideoMemory(
+    IN gckEVENT Event,
+    IN gcuVIDMEM_NODE_PTR VideoMemory,
+    IN gceKERNEL_WHERE FromWhere
+    );
+
+/* Schedule a signal event. */
+gceSTATUS
+gckEVENT_Signal(
+    IN gckEVENT Event,
+    IN gctSIGNAL Signal,
+    IN gceKERNEL_WHERE FromWhere
+    );
+
+/* Schedule an Unlock event. */
+gceSTATUS
+gckEVENT_Unlock(
+    IN gckEVENT Event,
+    IN gceKERNEL_WHERE FromWhere,
+    IN gctPOINTER Node,
+    IN gceSURF_TYPE Type
+    );
+
+gceSTATUS
+gckEVENT_CommitDone(
+    IN gckEVENT Event,
+    IN gceKERNEL_WHERE FromWhere
+    );
+
+/* Schedule a FreeVirtualCommandBuffer event. */
+gceSTATUS
+gckEVENT_DestroyVirtualCommandBuffer(
+    IN gckEVENT Event,
+    IN gctSIZE_T Bytes,
+    IN gctPHYS_ADDR Physical,
+    IN gctPOINTER Logical,
+    IN gceKERNEL_WHERE FromWhere
+    );
+
+gceSTATUS
+gckEVENT_Submit(
+    IN gckEVENT Event,
+    IN gctBOOL Wait,
+    IN gctBOOL FromPower
+    );
+
+gceSTATUS
+gckEVENT_Commit(
+    IN gckEVENT Event,
+    IN gcsQUEUE_PTR Queue
+    );
+
+/* Schedule a composition event. */
+gceSTATUS
+gckEVENT_Compose(
+    IN gckEVENT Event,
+    IN gcsHAL_COMPOSE_PTR Info
+    );
+
+/* Event callback routine. */
+gceSTATUS
+gckEVENT_Notify(
+    IN gckEVENT Event,
+    IN gctUINT32 IDs
+    );
+
+/* Event callback routine. */
+gceSTATUS
+gckEVENT_Interrupt(
+    IN gckEVENT Event,
+    IN gctUINT32 IDs
+    );
+
+gceSTATUS
+gckEVENT_Dump(
+    IN gckEVENT Event
+    );
+/******************************************************************************\
+******************************* gckCOMMAND Object ******************************
+\******************************************************************************/
+
+typedef struct _gckCOMMAND *        gckCOMMAND;
+
+/* Construct a new gckCOMMAND object. */
+gceSTATUS
+gckCOMMAND_Construct(
+    IN gckKERNEL Kernel,
+    OUT gckCOMMAND * Command
+    );
+
+/* Destroy an gckCOMMAND object. */
+gceSTATUS
+gckCOMMAND_Destroy(
+    IN gckCOMMAND Command
+    );
+
+/* Acquire command queue synchronization objects. */
+gceSTATUS
+gckCOMMAND_EnterCommit(
+    IN gckCOMMAND Command,
+    IN gctBOOL FromPower
+    );
+
+/* Release command queue synchronization objects. */
+gceSTATUS
+gckCOMMAND_ExitCommit(
+    IN gckCOMMAND Command,
+    IN gctBOOL FromPower
+    );
+
+/* Start the command queue. */
+gceSTATUS
+gckCOMMAND_Start(
+    IN gckCOMMAND Command
+    );
+
+/* Stop the command queue. */
+gceSTATUS
+gckCOMMAND_Stop(
+    IN gckCOMMAND Command,
+    IN gctBOOL FromRecovery
+    );
+
+gceSTATUS
+gckCOMMAND_Commit(
+    IN gckCOMMAND Command,
+    IN gckCONTEXT Context,
+    IN gcoCMDBUF CommandBuffer,
+    IN gcsSTATE_DELTA_PTR StateDelta,
+    IN gcsQUEUE_PTR EventQueue,
+    IN gctUINT32 ProcessID
+    );
+
+/* Reserve space in the command buffer. */
+gceSTATUS
+gckCOMMAND_Reserve(
+    IN gckCOMMAND Command,
+    IN gctUINT32 RequestedBytes,
+    OUT gctPOINTER * Buffer,
+    OUT gctUINT32 * BufferSize
+    );
+
+/* Execute reserved space in the command buffer. */
+gceSTATUS
+gckCOMMAND_Execute(
+    IN gckCOMMAND Command,
+    IN gctUINT32 RequstedBytes
+    );
+
+/* Stall the command queue. */
+gceSTATUS
+gckCOMMAND_Stall(
+    IN gckCOMMAND Command,
+    IN gctBOOL FromPower
+    );
+
+/* Attach user process. */
+gceSTATUS
+gckCOMMAND_Attach(
+    IN gckCOMMAND Command,
+    OUT gckCONTEXT * Context,
+    OUT gctSIZE_T * MaxState,
+    OUT gctUINT32 * NumStates,
+    IN gctUINT32 ProcessID
+    );
+
+/* Detach user process. */
+gceSTATUS
+gckCOMMAND_Detach(
+    IN gckCOMMAND Command,
+    IN gckCONTEXT Context
+    );
+
+/* Dump command buffer being executed by GPU. */
+gceSTATUS
+gckCOMMAND_DumpExecutingBuffer(
+    IN gckCOMMAND Command
+    );
+
+/* Whether a kernel command buffer address. */
+gceSTATUS
+gckCOMMAND_AddressInKernelCommandBuffer(
+    IN gckCOMMAND Command,
+    IN gctUINT32 Address,
+    OUT gctPOINTER * Pointer
+    );
+
+/******************************************************************************\
+********************************* gckMMU Object ********************************
+\******************************************************************************/
+
+typedef struct _gckMMU *            gckMMU;
+
+/* Construct a new gckMMU object. */
+gceSTATUS
+gckMMU_Construct(
+    IN gckKERNEL Kernel,
+    IN gctSIZE_T MmuSize,
+    OUT gckMMU * Mmu
+    );
+
+/* Destroy an gckMMU object. */
+gceSTATUS
+gckMMU_Destroy(
+    IN gckMMU Mmu
+    );
+
+/* Allocate pages inside the MMU. */
+gceSTATUS
+gckMMU_AllocatePages(
+    IN gckMMU Mmu,
+    IN gctSIZE_T PageCount,
+    OUT gctPOINTER * PageTable,
+    OUT gctUINT32 * Address
+    );
+
+gceSTATUS
+gckMMU_AllocatePagesEx(
+    IN gckMMU Mmu,
+    IN gctSIZE_T PageCount,
+    IN gceSURF_TYPE Type,
+    OUT gctPOINTER * PageTable,
+    OUT gctUINT32 * Address
+    );
+
+/* Remove a page table from the MMU. */
+gceSTATUS
+gckMMU_FreePages(
+    IN gckMMU Mmu,
+    IN gctPOINTER PageTable,
+    IN gctSIZE_T PageCount
+    );
+
+/* Set the MMU page with info. */
+gceSTATUS
+gckMMU_SetPage(
+   IN gckMMU Mmu,
+   IN gctPHYS_ADDR_T PageAddress,
+   IN gctUINT32 *PageEntry
+   );
+
+gceSTATUS
+gckMMU_Flush(
+    IN gckMMU Mmu,
+    IN gceSURF_TYPE Type
+    );
+
+gceSTATUS
+gckMMU_DumpPageTableEntry(
+    IN gckMMU Mmu,
+    IN gctUINT32 Address
+    );
+
+
+#if VIVANTE_PROFILER
+gceSTATUS
+gckHARDWARE_QueryProfileRegisters(
+    IN gckHARDWARE Hardware,
+    IN gctBOOL Reset,
+    OUT gcsPROFILER_COUNTERS * Counters
+    );
+#endif
+
+#if VIVANTE_PROFILER_CONTEXT
+gceSTATUS
+gckHARDWARE_QueryContextProfile(
+    IN gckHARDWARE Hardware,
+    IN gctBOOL Reset,
+    IN gckCONTEXT Context,
+    OUT gcsPROFILER_COUNTERS * Counters
+    );
+
+gceSTATUS
+gckHARDWARE_UpdateContextProfile(
+    IN gckHARDWARE Hardware,
+    IN gckCONTEXT Context
+    );
+#endif
+
+gceSTATUS
+gckHARDWARE_InitProfiler(
+    IN gckHARDWARE Hardware
+    );
+
+gceSTATUS
+gckOS_SignalQueryHardware(
+    IN gckOS Os,
+    IN gctSIGNAL Signal,
+    OUT gckHARDWARE * Hardware
+    );
+
+gceSTATUS
+gckOS_SignalSetHardware(
+    IN gckOS Os,
+    IN gctSIGNAL Signal,
+    gckHARDWARE Hardware
+    );
+
+gceSTATUS
+gckOS_DetectProcessByName(
+    IN gctCONST_POINTER Name
+    );
+
+void
+gckOS_DumpParam(
+    void
+    );
+
+#ifdef __cplusplus
+}
+#endif
+
+
+#endif /* __gc_hal_h_ */
diff --git a/src/hal/kernel/inc/gc_hal_base.h b/src/hal/kernel/inc/gc_hal_base.h
new file mode 100755
index 0000000..64410be
--- /dev/null
+++ b/src/hal/kernel/inc/gc_hal_base.h
@@ -0,0 +1,5347 @@
+/****************************************************************************
+*
+*    The MIT License (MIT)
+*
+*    Copyright (c) 2014 Vivante Corporation
+*
+*    Permission is hereby granted, free of charge, to any person obtaining a
+*    copy of this software and associated documentation files (the "Software"),
+*    to deal in the Software without restriction, including without limitation
+*    the rights to use, copy, modify, merge, publish, distribute, sublicense,
+*    and/or sell copies of the Software, and to permit persons to whom the
+*    Software is furnished to do so, subject to the following conditions:
+*
+*    The above copyright notice and this permission notice shall be included in
+*    all copies or substantial portions of the Software.
+*
+*    THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+*    IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+*    FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+*    AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+*    LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+*    FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+*    DEALINGS IN THE SOFTWARE.
+*
+*****************************************************************************
+*
+*    The GPL License (GPL)
+*
+*    Copyright (C) 2014  Vivante Corporation
+*
+*    This program is free software; you can redistribute it and/or
+*    modify it under the terms of the GNU General Public License
+*    as published by the Free Software Foundation; either version 2
+*    of the License, or (at your option) any later version.
+*
+*    This program is distributed in the hope that it will be useful,
+*    but WITHOUT ANY WARRANTY; without even the implied warranty of
+*    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+*    GNU General Public License for more details.
+*
+*    You should have received a copy of the GNU General Public License
+*    along with this program; if not, write to the Free Software Foundation,
+*    Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+*
+*****************************************************************************
+*
+*    Note: This software is released under dual MIT and GPL licenses. A
+*    recipient may use this file under the terms of either the MIT license or
+*    GPL License. If you wish to use only one license not the other, you can
+*    indicate your decision by deleting one of the above license notices in your
+*    version of this file.
+*
+*****************************************************************************/
+
+
+#ifndef __gc_hal_base_h_
+#define __gc_hal_base_h_
+
+#include "gc_hal_enum.h"
+#include "gc_hal_types.h"
+#include "gc_hal_dump.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/******************************************************************************\
+****************************** Object Declarations *****************************
+\******************************************************************************/
+
+typedef struct _gckOS *                 gckOS;
+typedef struct _gcoHAL *                gcoHAL;
+typedef struct _gcoOS *                 gcoOS;
+typedef struct _gco2D *                 gco2D;
+typedef struct gcsATOM *                gcsATOM_PTR;
+
+
+typedef struct _gcoSURF *               gcoSURF;
+typedef struct _gcsSURF_INFO *          gcsSURF_INFO_PTR;
+typedef struct _gcsSURF_NODE *          gcsSURF_NODE_PTR;
+typedef struct _gcsSURF_FORMAT_INFO *   gcsSURF_FORMAT_INFO_PTR;
+typedef struct _gcsPOINT *              gcsPOINT_PTR;
+typedef struct _gcsSIZE *               gcsSIZE_PTR;
+typedef struct _gcsRECT *               gcsRECT_PTR;
+typedef struct _gcsBOUNDARY *           gcsBOUNDARY_PTR;
+typedef struct _gcoDUMP *               gcoDUMP;
+typedef struct _gcoHARDWARE *           gcoHARDWARE;
+typedef union  _gcuVIDMEM_NODE *        gcuVIDMEM_NODE_PTR;
+typedef struct _gcsVIDMEM_NODE *        gckVIDMEM_NODE;
+
+typedef void *                          gcoVG;
+
+#if gcdGC355_PROFILER
+typedef struct _gcsPROFILERFUNCData * gcsPROFILERFUNCData_PTR;
+typedef struct _gcsPROFILERFUNCNODE * gcsPROFILERFUNCNODE_PTR;
+#endif
+
+#if gcdSYNC
+typedef struct _gcoFENCE *              gcoFENCE;
+typedef struct _gcsSYNC_CONTEXT *       gcsSYNC_CONTEXT_PTR;
+#endif
+
+typedef struct _gcsUSER_MEMORY_DESC *   gcsUSER_MEMORY_DESC_PTR;
+
+/******************************************************************************\
+********************* Share obj lock/unlock macros. ****************************
+\******************************************************************************/
+#define gcmLOCK_SHARE_OBJ(Obj) \
+{ \
+    if(Obj->sharedLock != gcvNULL)\
+    {\
+        (gcoOS_AcquireMutex( \
+                     gcvNULL, Obj->sharedLock, gcvINFINITE));\
+    }\
+}
+
+
+#define gcmUNLOCK_SHARE_OBJ(Obj)\
+{\
+    if(Obj->sharedLock != gcvNULL)\
+    {\
+        (gcoOS_ReleaseMutex(gcvNULL, Obj->sharedLock));\
+    }\
+}
+
+#if defined(ANDROID)
+typedef struct _gcoOS_SymbolsList gcoOS_SymbolsList;
+#endif
+
+/******************************************************************************\
+******************************* Process local storage *************************
+\******************************************************************************/
+
+typedef struct _gcsPLS * gcsPLS_PTR;
+
+
+
+typedef void (* gctPLS_DESTRUCTOR) (
+    gcsPLS_PTR
+    );
+
+typedef struct _gcsPLS
+{
+    /* Global objects. */
+    gcoOS                       os;
+    gcoHAL                      hal;
+
+    /* Internal memory pool. */
+    gctSIZE_T                   internalSize;
+    gctPHYS_ADDR                internalPhysical;
+    gctPOINTER                  internalLogical;
+
+    /* External memory pool. */
+    gctSIZE_T                   externalSize;
+    gctPHYS_ADDR                externalPhysical;
+    gctPOINTER                  externalLogical;
+
+    /* Contiguous memory pool. */
+    gctSIZE_T                   contiguousSize;
+    gctPHYS_ADDR                contiguousPhysical;
+    gctPOINTER                  contiguousLogical;
+
+    /* EGL-specific process-wide objects. */
+    gctPOINTER                  eglDisplayInfo;
+    gctPOINTER                  eglSurfaceInfo;
+    gceSURF_FORMAT              eglConfigFormat;
+
+    /* PLS reference count */
+    gcsATOM_PTR                 reference;
+
+    /* PorcessID of the constrcutor process */
+    gctUINT32                   processID;
+
+    /* ThreadID of the constrcutor process. */
+    gctSIZE_T                   threadID;
+    /* Flag for calling module destructor. */
+    gctBOOL                     exiting;
+
+    gctBOOL                     bNeedSupportNP2Texture;
+
+    gctPLS_DESTRUCTOR           destructor;
+    /* Mutex to guard PLS access. currently it's for EGL.
+    ** We can use this mutex for every PLS access.
+    */
+    gctPOINTER                  accessLock;
+}
+gcsPLS;
+
+extern gcsPLS gcPLS;
+
+#define gcPLS_INITIALIZER \
+{ \
+    gcvNULL,         /* gcoOS object.      */ \
+    gcvNULL,         /* gcoHAL object.     */ \
+    0,               /* internalSize       */ \
+    gcvNULL,         /* internalPhysical   */ \
+    gcvNULL,         /* internalLogical    */ \
+    0,               /* externalSize       */ \
+    gcvNULL,         /* externalPhysical   */ \
+    gcvNULL,         /* externalLogical    */ \
+    0,               /* contiguousSize     */ \
+    gcvNULL,         /* contiguousPhysical */ \
+    gcvNULL,         /* contiguousLogical  */ \
+    gcvNULL,         /* eglDisplayInfo     */ \
+    gcvNULL,         /* eglSurfaceInfo     */ \
+    gcvSURF_A8R8G8B8,/* eglConfigFormat    */ \
+    gcvNULL,         /* reference          */ \
+    0,               /* processID          */ \
+    0,               /* threadID           */ \
+    gcvFALSE,        /* exiting            */ \
+    gcvFALSE,        /* Special flag for NP2 texture. */ \
+    gcvNULL,         /* destructor        */ \
+    gcvNULL,         /* accessLock        */ \
+}
+
+/******************************************************************************\
+******************************* Thread local storage *************************
+\******************************************************************************/
+
+typedef struct _gcsTLS * gcsTLS_PTR;
+
+typedef void (* gctTLS_DESTRUCTOR) (
+    gcsTLS_PTR
+    );
+
+typedef struct _gcsTLS
+{
+    gceHARDWARE_TYPE            currentType;
+
+    /* Current 3D hardwre of this thread */
+    gcoHARDWARE                 currentHardware;
+
+    /* Default 3D hardware of this thread */
+    gcoHARDWARE                 defaultHardware;
+
+    /* Only for separated 3D and 2D */
+    gcoHARDWARE                 hardware2D;
+    gco2D                       engine2D;
+
+    /*thread data */
+    gctPOINTER                  context;
+    /* ES(including es1 and es2) client driver context which is current state */
+    gctPOINTER                  esClientCtx;
+    gctTLS_DESTRUCTOR           destructor;
+
+    gctBOOL                     copied;
+
+    /* libGAL.so handle */
+    gctHANDLE                   handle;
+
+    /* If true, do not releas 2d engine and hardware in hal layer */
+    gctBOOL                     release2DUpper;
+}
+gcsTLS;
+
+/******************************************************************************\
+********************************* Enumerations *********************************
+\******************************************************************************/
+
+typedef enum _gcePLS_VALUE
+{
+  gcePLS_VALUE_EGL_DISPLAY_INFO,
+  gcePLS_VALUE_EGL_SURFACE_INFO,
+  gcePLS_VALUE_EGL_CONFIG_FORMAT_INFO,
+  gcePLS_VALUE_EGL_DESTRUCTOR_INFO,
+}
+gcePLS_VALUE;
+
+/* Video memory pool type. */
+typedef enum _gcePOOL
+{
+    gcvPOOL_UNKNOWN = 0,
+    gcvPOOL_DEFAULT,
+    gcvPOOL_LOCAL,
+    gcvPOOL_LOCAL_INTERNAL,
+    gcvPOOL_LOCAL_EXTERNAL,
+    gcvPOOL_UNIFIED,
+    gcvPOOL_SYSTEM,
+    gcvPOOL_VIRTUAL,
+    gcvPOOL_USER,
+    gcvPOOL_CONTIGUOUS,
+
+    gcvPOOL_NUMBER_OF_POOLS
+}
+gcePOOL;
+
+
+
+
+typedef enum _gceWHERE
+{
+    gcvWHERE_COMMAND,
+    gcvWHERE_RASTER,
+    gcvWHERE_PIXEL,
+}
+gceWHERE;
+
+typedef enum _gceHOW
+{
+    gcvHOW_SEMAPHORE            = 0x1,
+    gcvHOW_STALL                = 0x2,
+    gcvHOW_SEMAPHORE_STALL      = 0x3,
+}
+gceHOW;
+
+typedef enum _gceSignalHandlerType
+{
+    gcvHANDLE_SIGFPE_WHEN_SIGNAL_CODE_IS_0        = 0x1,
+}
+gceSignalHandlerType;
+
+/* gcsHAL_Limits*/
+typedef struct _gcsHAL_LIMITS
+{
+    /* chip info */
+    gceCHIPMODEL    chipModel;
+    gctUINT32       chipRevision;
+    gctUINT32       featureCount;
+    gctUINT32       *chipFeatures;
+
+    /* target caps */
+    gctUINT32         maxWidth;
+    gctUINT32         maxHeight;
+    gctUINT32         multiTargetCount;
+    gctUINT32         maxSamples;
+
+}gcsHAL_LIMITS;
+
+/******************************************************************************\
+*********** Generic Memory Allocation Optimization Using Containers ************
+\******************************************************************************/
+
+/* Generic container definition. */
+typedef struct _gcsCONTAINER_LINK * gcsCONTAINER_LINK_PTR;
+typedef struct _gcsCONTAINER_LINK
+{
+    /* Points to the next container. */
+    gcsCONTAINER_LINK_PTR           next;
+}
+gcsCONTAINER_LINK;
+
+typedef struct _gcsCONTAINER_RECORD * gcsCONTAINER_RECORD_PTR;
+typedef struct _gcsCONTAINER_RECORD
+{
+    gcsCONTAINER_RECORD_PTR         prev;
+    gcsCONTAINER_RECORD_PTR         next;
+}
+gcsCONTAINER_RECORD;
+
+typedef struct _gcsCONTAINER * gcsCONTAINER_PTR;
+typedef struct _gcsCONTAINER
+{
+    gctUINT                         containerSize;
+    gctUINT                         recordSize;
+    gctUINT                         recordCount;
+    gcsCONTAINER_LINK_PTR           containers;
+    gcsCONTAINER_RECORD             freeList;
+    gcsCONTAINER_RECORD             allocList;
+}
+gcsCONTAINER;
+
+#if gcdGC355_PROFILER
+/*------------------------GC355_PROFILER function node structure--------------*/
+typedef struct _gcsPROFILERFUNCData
+{
+    gctSTRING funcName;
+    gctSTRING Tag;
+    gctUINT   TreeDepth;
+    gctUINT   saveLayerTreeDepth;
+    gctUINT   varTreeDepth;
+    gctUINT64 elapsedTime;
+    gctUINT64 cpuTime;
+    gctUINT64 gpuTime;
+}gcsPROFILERFUNCData;
+
+
+typedef struct _gcsPROFILERFUNCNODE
+{
+    gcsPROFILERFUNCData_PTR data;
+    gcsPROFILERFUNCNODE_PTR pre;
+    gcsPROFILERFUNCNODE_PTR next;
+}gcsPROFILERFUNCNODE;
+/*----------------------------------------------------------------------------*/
+#endif
+
+
+gceSTATUS
+gcsCONTAINER_Construct(
+    IN gcsCONTAINER_PTR Container,
+    gctUINT RecordsPerContainer,
+    gctUINT RecordSize
+    );
+
+gceSTATUS
+gcsCONTAINER_Destroy(
+    IN gcsCONTAINER_PTR Container
+    );
+
+gceSTATUS
+gcsCONTAINER_AllocateRecord(
+    IN gcsCONTAINER_PTR Container,
+    OUT gctPOINTER * Record
+    );
+
+gceSTATUS
+gcsCONTAINER_FreeRecord(
+    IN gcsCONTAINER_PTR Container,
+    IN gctPOINTER Record
+    );
+
+gceSTATUS
+gcsCONTAINER_FreeAll(
+    IN gcsCONTAINER_PTR Container
+    );
+
+/******************************************************************************\
+********************************* gcoHAL Object *********************************
+\******************************************************************************/
+
+/* Construct a new gcoHAL object. */
+gceSTATUS
+gcoHAL_ConstructEx(
+    IN gctPOINTER Context,
+    IN gcoOS Os,
+    OUT gcoHAL * Hal
+    );
+
+/* Destroy an gcoHAL object. */
+gceSTATUS
+gcoHAL_DestroyEx(
+    IN gcoHAL Hal
+    );
+
+/* Empty function for compatibility. */
+gceSTATUS
+gcoHAL_Construct(
+    IN gctPOINTER Context,
+    IN gcoOS Os,
+    OUT gcoHAL * Hal
+    );
+
+/* Empty function for compatibility. */
+gceSTATUS
+gcoHAL_Destroy(
+    IN gcoHAL Hal
+    );
+
+/* Get HAL options */
+gceSTATUS
+gcoHAL_GetOption(
+     IN gcoHAL Hal,
+     IN gceOPTION Option
+     );
+
+gceSTATUS
+gcoHAL_FrameInfoOps(
+    IN gcoHAL Hal,
+    IN gceFRAMEINFO FrameInfo,
+    IN gceFRAMEINFO_OP Op,
+    IN OUT gctUINT * Val
+    );
+
+
+gceSTATUS
+gcoHAL_GetHardware(
+    IN gcoHAL Hal,
+    OUT gcoHARDWARE* Hw
+    );
+
+/* Get pointer to gco2D object. */
+gceSTATUS
+gcoHAL_Get2DEngine(
+    IN gcoHAL Hal,
+    OUT gco2D * Engine
+    );
+
+
+
+gceSTATUS
+gcoHAL_GetProductName(
+    IN gcoHAL Hal,
+    OUT gctSTRING *ProductName
+    );
+
+gceSTATUS
+gcoHAL_SetFscaleValue(
+    IN gctUINT FscaleValue
+    );
+
+gceSTATUS
+gcoHAL_GetFscaleValue(
+    OUT gctUINT * FscaleValue,
+    OUT gctUINT * MinFscaleValue,
+    OUT gctUINT * MaxFscaleValue
+    );
+
+gceSTATUS
+gcoHAL_SetBltNP2Texture(
+    gctBOOL enable
+    );
+
+gceSTATUS
+gcoHAL_NameVideoMemory(
+    IN gctUINT32 Handle,
+    OUT gctUINT32 * Name
+    );
+
+gceSTATUS
+gcoHAL_ImportVideoMemory(
+    IN gctUINT32 Name,
+    OUT gctUINT32 * Handle
+    );
+
+gceSTATUS
+gcoHAL_GetVideoMemoryFd(
+    IN gctUINT32 Handle,
+    OUT gctINT * Fd
+    );
+
+/* Verify whether the specified feature is available in hardware. */
+gceSTATUS
+gcoHAL_IsFeatureAvailable(
+    IN gcoHAL Hal,
+    IN gceFEATURE Feature
+    );
+
+gceSTATUS
+gcoHAL_IsSwwaNeeded(
+    IN gcoHAL Hal,
+    IN gceSWWA Swwa
+    );
+
+gceSTATUS
+gcoHAL_IsFeatureAvailable1(
+    IN gcoHAL Hal,
+    IN gceFEATURE Feature
+    );
+
+/* Query the identity of the hardware. */
+gceSTATUS
+gcoHAL_QueryChipIdentity(
+    IN gcoHAL Hal,
+    OUT gceCHIPMODEL* ChipModel,
+    OUT gctUINT32* ChipRevision,
+    OUT gctUINT32* ChipFeatures,
+    OUT gctUINT32* ChipMinorFeatures
+    );
+
+/* Query the minor features of the hardware. */
+gceSTATUS gcoHAL_QueryChipMinorFeatures(
+    IN gcoHAL Hal,
+    OUT gctUINT32* NumFeatures,
+    OUT gctUINT32* ChipMinorFeatures
+    );
+
+gctINT32
+gcoOS_EndRecordAllocation(void);
+void
+gcoOS_RecordAllocation(void);
+void
+gcoOS_AddRecordAllocation(gctSIZE_T Size);
+
+/* Query the amount of video memory. */
+gceSTATUS
+gcoHAL_QueryVideoMemory(
+    IN gcoHAL Hal,
+    OUT gctPHYS_ADDR * InternalAddress,
+    OUT gctSIZE_T * InternalSize,
+    OUT gctPHYS_ADDR * ExternalAddress,
+    OUT gctSIZE_T * ExternalSize,
+    OUT gctPHYS_ADDR * ContiguousAddress,
+    OUT gctSIZE_T * ContiguousSize
+    );
+
+/* Map video memory. */
+gceSTATUS
+gcoHAL_MapMemory(
+    IN gcoHAL Hal,
+    IN gctPHYS_ADDR Physical,
+    IN gctSIZE_T NumberOfBytes,
+    OUT gctPOINTER * Logical
+    );
+
+/* Unmap video memory. */
+gceSTATUS
+gcoHAL_UnmapMemory(
+    IN gcoHAL Hal,
+    IN gctPHYS_ADDR Physical,
+    IN gctSIZE_T NumberOfBytes,
+    IN gctPOINTER Logical
+    );
+
+/* Schedule an unmap of a buffer mapped through its physical address. */
+gceSTATUS
+gcoHAL_ScheduleUnmapMemory(
+    IN gcoHAL Hal,
+    IN gctPHYS_ADDR Physical,
+    IN gctSIZE_T NumberOfBytes,
+    IN gctPOINTER Logical
+    );
+
+/* Allocate video memory. */
+gceSTATUS
+gcoOS_AllocateVideoMemory(
+    IN gcoOS Os,
+    IN gctBOOL InUserSpace,
+    IN gctBOOL InCacheable,
+    IN OUT gctSIZE_T * Bytes,
+    OUT gctUINT32 * Physical,
+    OUT gctPOINTER * Logical,
+    OUT gctPOINTER * Handle
+    );
+
+/* Free video memory. */
+gceSTATUS
+gcoOS_FreeVideoMemory(
+    IN gcoOS Os,
+    IN gctPOINTER Handle
+    );
+
+/* Lock video memory. */
+gceSTATUS
+gcoOS_LockVideoMemory(
+    IN gcoOS Os,
+    IN gctPOINTER Handle,
+    IN gctBOOL InUserSpace,
+    IN gctBOOL InCacheable,
+    OUT gctUINT32 * Physical,
+    OUT gctPOINTER * Logical
+    );
+
+/* Map user memory. */
+gceSTATUS
+gcoHAL_MapUserMemory(
+    IN gctPOINTER Logical,
+    IN gctUINT32 Physical,
+    IN gctSIZE_T Size,
+    OUT gctPOINTER * Info,
+    OUT gctUINT32_PTR GPUAddress
+    );
+
+/* Unmap user memory. */
+gceSTATUS
+gcoHAL_UnmapUserMemory(
+    IN gctPOINTER Logical,
+    IN gctSIZE_T Size,
+    IN gctPOINTER Info,
+    IN gctUINT32 GPUAddress
+    );
+
+/* Schedule an unmap of a user buffer using event mechanism. */
+gceSTATUS
+gcoHAL_ScheduleUnmapUserMemory(
+    IN gcoHAL Hal,
+    IN gctPOINTER Info,
+    IN gctSIZE_T Size,
+    IN gctUINT32 Address,
+    IN gctPOINTER Memory
+    );
+
+/* Commit the current command buffer. */
+gceSTATUS
+gcoHAL_Commit(
+    IN gcoHAL Hal,
+    IN gctBOOL Stall
+    );
+
+
+/* Query the tile capabilities. */
+gceSTATUS
+gcoHAL_QueryTiled(
+    IN gcoHAL Hal,
+    OUT gctINT32 * TileWidth2D,
+    OUT gctINT32 * TileHeight2D,
+    OUT gctINT32 * TileWidth3D,
+    OUT gctINT32 * TileHeight3D
+    );
+
+gceSTATUS
+gcoHAL_Compact(
+    IN gcoHAL Hal
+    );
+
+#if VIVANTE_PROFILER
+gceSTATUS
+gcoHAL_ProfileStart(
+    IN gcoHAL Hal
+    );
+
+gceSTATUS
+gcoHAL_ProfileEnd(
+    IN gcoHAL Hal,
+    IN gctCONST_STRING Title
+    );
+#endif
+
+/* Power Management */
+gceSTATUS
+gcoHAL_SetPowerManagementState(
+    IN gcoHAL Hal,
+    IN gceCHIPPOWERSTATE State
+    );
+
+gceSTATUS
+gcoHAL_QueryPowerManagementState(
+    IN gcoHAL Hal,
+    OUT gceCHIPPOWERSTATE *State
+    );
+
+/* Set the filter type for filter blit. */
+gceSTATUS
+gcoHAL_SetFilterType(
+    IN gcoHAL Hal,
+    IN gceFILTER_TYPE FilterType
+    );
+
+gceSTATUS
+gcoHAL_GetDump(
+    IN gcoHAL Hal,
+    OUT gcoDUMP * Dump
+    );
+
+/* Call the kernel HAL layer. */
+gceSTATUS
+gcoHAL_Call(
+    IN gcoHAL Hal,
+    IN OUT gcsHAL_INTERFACE_PTR Interface
+    );
+
+/* Schedule an event. */
+gceSTATUS
+gcoHAL_ScheduleEvent(
+    IN gcoHAL Hal,
+    IN OUT gcsHAL_INTERFACE_PTR Interface
+    );
+
+/* Destroy a surface. */
+gceSTATUS
+gcoHAL_DestroySurface(
+    IN gcoHAL Hal,
+    IN gcoSURF Surface
+    );
+
+/* Request a start/stop timestamp. */
+gceSTATUS
+gcoHAL_SetTimer(
+    IN gcoHAL Hal,
+    IN gctUINT32 Index,
+    IN gctBOOL Start
+    );
+
+/* Get Time delta from a Timer in microseconds. */
+gceSTATUS
+gcoHAL_GetTimerTime(
+    IN gcoHAL Hal,
+    IN gctUINT32 Timer,
+    OUT gctINT32_PTR TimeDelta
+    );
+
+/* set timeout value. */
+gceSTATUS
+gcoHAL_SetTimeOut(
+    IN gcoHAL Hal,
+    IN gctUINT32 timeOut
+    );
+
+gceSTATUS
+gcoHAL_SetHardwareType(
+    IN gcoHAL Hal,
+    IN gceHARDWARE_TYPE HardwardType
+    );
+
+gceSTATUS
+gcoHAL_GetHardwareType(
+    IN gcoHAL Hal,
+    OUT gceHARDWARE_TYPE * HardwardType
+    );
+
+gceSTATUS
+gcoHAL_QueryChipCount(
+    IN gcoHAL Hal,
+    OUT gctINT32 * Count
+    );
+
+gceSTATUS
+gcoHAL_Query3DCoreCount(
+    IN gcoHAL       Hal,
+    OUT gctUINT32  *Count
+    );
+
+gceSTATUS
+gcoHAL_QuerySeparated2D(
+    IN gcoHAL Hal
+    );
+
+gceSTATUS
+gcoHAL_Is3DAvailable(
+    IN gcoHAL Hal
+    );
+
+/* Get pointer to gcoVG object. */
+gceSTATUS
+gcoHAL_GetVGEngine(
+    IN gcoHAL Hal,
+    OUT gcoVG * Engine
+    );
+
+gceSTATUS
+gcoHAL_QueryChipLimits(
+    IN gcoHAL           Hal,
+    IN gctINT32         Chip,
+    IN gctINT32         Mask,
+    OUT gcsHAL_LIMITS   *Limits);
+
+gceSTATUS
+gcoHAL_QueryChipFeature(
+    IN gcoHAL       Hal,
+    IN gctINT32     Chip,
+    IN gctINT32     Mask,
+    IN gceFEATURE   Feature);
+
+/*----------------------------------------------------------------------------*/
+/*----- Shared Buffer --------------------------------------------------------*/
+
+/* Create shared buffer. */
+gceSTATUS
+gcoHAL_CreateShBuffer(
+    IN gctUINT32 Size,
+    OUT gctSHBUF * ShBuf
+    );
+
+/* Destroy shared buffer. */
+gceSTATUS
+gcoHAL_DestroyShBuffer(
+    IN gctSHBUF ShBuf
+    );
+
+/* Map shared buffer to current process. */
+gceSTATUS
+gcoHAL_MapShBuffer(
+    IN gctSHBUF ShBuf
+    );
+
+/* Write user data to shared buffer. */
+gceSTATUS
+gcoHAL_WriteShBuffer(
+    IN gctSHBUF ShBuf,
+    IN gctCONST_POINTER Data,
+    IN gctUINT32 ByteCount
+    );
+
+/* Read user data from shared buffer. */
+gceSTATUS
+gcoHAL_ReadShBuffer(
+    IN gctSHBUF ShBuf,
+    IN gctPOINTER Data,
+    IN gctUINT32 BytesCount,
+    OUT gctUINT32 * BytesRead
+    );
+
+/* Config power management to be enabled or disabled. */
+gceSTATUS
+gcoHAL_ConfigPowerManagement(
+    IN gctBOOL Enable
+    );
+
+gceSTATUS
+gcoHAL_AllocateVideoMemory(
+    IN gctUINT Alignment,
+    IN gceSURF_TYPE Type,
+    IN gctUINT32 Flag,
+    IN gcePOOL Pool,
+    IN OUT gctSIZE_T * Bytes,
+    OUT gctUINT32_PTR Node
+    );
+
+gceSTATUS
+gcoHAL_LockVideoMemory(
+    IN gctUINT32 Node,
+    IN gctBOOL Cacheable,
+    OUT gctUINT32 * Physical,
+    OUT gctPOINTER * Logical
+    );
+
+gceSTATUS
+gcoHAL_UnlockVideoMemory(
+    IN gctUINT32 Node,
+    IN gceSURF_TYPE Type
+    );
+
+gceSTATUS
+    gcoHAL_ReleaseVideoMemory(
+    IN gctUINT32 Node
+    );
+
+
+gceSTATUS
+gcoHAL_WrapUserMemory(
+    IN gcsUSER_MEMORY_DESC_PTR UserMemoryDesc,
+    OUT gctUINT32_PTR Node
+    );
+
+/******************************************************************************\
+********************************** gcoOS Object *********************************
+\******************************************************************************/
+/* Lock PLS access */
+gceSTATUS
+gcoOS_LockPLS(
+    void
+    );
+
+/* Unlock PLS access */
+gceSTATUS
+gcoOS_UnLockPLS(
+    void
+    );
+
+/* Get PLS value for given key */
+gctPOINTER
+gcoOS_GetPLSValue(
+    IN gcePLS_VALUE key
+    );
+
+/* Set PLS value of a given key */
+void
+gcoOS_SetPLSValue(
+    IN gcePLS_VALUE key,
+    OUT gctPOINTER value
+    );
+
+/* Get access to the thread local storage. */
+gceSTATUS
+gcoOS_GetTLS(
+    OUT gcsTLS_PTR * TLS
+    );
+
+    /* Copy the TLS from a source thread. */
+    gceSTATUS gcoOS_CopyTLS(IN gcsTLS_PTR Source);
+
+/* Destroy the objects associated with the current thread. */
+void
+gcoOS_FreeThreadData(
+    void
+    );
+
+/* Empty function for compatibility. */
+gceSTATUS
+gcoOS_Construct(
+    IN gctPOINTER Context,
+    OUT gcoOS * Os
+    );
+
+/* Empty function for compatibility. */
+gceSTATUS
+gcoOS_Destroy(
+    IN gcoOS Os
+    );
+
+/* Get the base address for the physical memory. */
+gceSTATUS
+gcoOS_GetBaseAddress(
+    IN gcoOS Os,
+    OUT gctUINT32_PTR BaseAddress
+    );
+
+/* Allocate memory from the heap. */
+gceSTATUS
+gcoOS_Allocate(
+    IN gcoOS Os,
+    IN gctSIZE_T Bytes,
+    OUT gctPOINTER * Memory
+    );
+
+/* Get allocated memory size. */
+gceSTATUS
+gcoOS_GetMemorySize(
+    IN gcoOS Os,
+    IN gctPOINTER Memory,
+    OUT gctSIZE_T_PTR MemorySize
+    );
+
+/* Free allocated memory. */
+gceSTATUS
+gcoOS_Free(
+    IN gcoOS Os,
+    IN gctPOINTER Memory
+    );
+
+/* Allocate memory. */
+gceSTATUS
+gcoOS_AllocateSharedMemory(
+    IN gcoOS Os,
+    IN gctSIZE_T Bytes,
+    OUT gctPOINTER * Memory
+    );
+
+/* Free memory. */
+gceSTATUS
+gcoOS_FreeSharedMemory(
+    IN gcoOS Os,
+    IN gctPOINTER Memory
+    );
+
+/* Allocate memory. */
+gceSTATUS
+gcoOS_AllocateMemory(
+    IN gcoOS Os,
+    IN gctSIZE_T Bytes,
+    OUT gctPOINTER * Memory
+    );
+
+/* Free memory. */
+gceSTATUS
+gcoOS_FreeMemory(
+    IN gcoOS Os,
+    IN gctPOINTER Memory
+    );
+
+/* Allocate contiguous memory. */
+gceSTATUS
+gcoOS_AllocateContiguous(
+    IN gcoOS Os,
+    IN gctBOOL InUserSpace,
+    IN OUT gctSIZE_T * Bytes,
+    OUT gctPHYS_ADDR * Physical,
+    OUT gctPOINTER * Logical
+    );
+
+/* Free contiguous memory. */
+gceSTATUS
+gcoOS_FreeContiguous(
+    IN gcoOS Os,
+    IN gctPHYS_ADDR Physical,
+    IN gctPOINTER Logical,
+    IN gctSIZE_T Bytes
+    );
+
+/* Map user memory. */
+gceSTATUS
+gcoOS_MapUserMemory(
+    IN gcoOS Os,
+    IN gctPOINTER Memory,
+    IN gctSIZE_T Size,
+    OUT gctPOINTER * Info,
+    OUT gctUINT32_PTR Address
+    );
+
+/* Map user memory. */
+gceSTATUS
+gcoOS_MapUserMemoryEx(
+    IN gcoOS Os,
+    IN gctPOINTER Memory,
+    IN gctUINT32 Physical,
+    IN gctSIZE_T Size,
+    OUT gctPOINTER * Info,
+    OUT gctUINT32_PTR Address
+    );
+
+/* Unmap user memory. */
+gceSTATUS
+gcoOS_UnmapUserMemory(
+    IN gcoOS Os,
+    IN gctPOINTER Memory,
+    IN gctSIZE_T Size,
+    IN gctPOINTER Info,
+    IN gctUINT32 Address
+    );
+
+/* Device I/O Control call to the kernel HAL layer. */
+gceSTATUS
+gcoOS_DeviceControl(
+    IN gcoOS Os,
+    IN gctUINT32 IoControlCode,
+    IN gctPOINTER InputBuffer,
+    IN gctSIZE_T InputBufferSize,
+    IN gctPOINTER OutputBuffer,
+    IN gctSIZE_T OutputBufferSize
+    );
+
+/* Allocate non paged memory. */
+gceSTATUS
+gcoOS_AllocateNonPagedMemory(
+    IN gcoOS Os,
+    IN gctBOOL InUserSpace,
+    IN OUT gctSIZE_T * Bytes,
+    OUT gctPHYS_ADDR * Physical,
+    OUT gctPOINTER * Logical
+    );
+
+/* Free non paged memory. */
+gceSTATUS
+gcoOS_FreeNonPagedMemory(
+    IN gcoOS Os,
+    IN gctSIZE_T Bytes,
+    IN gctPHYS_ADDR Physical,
+    IN gctPOINTER Logical
+    );
+
+#define gcmOS_SAFE_FREE(os, mem) \
+    gcoOS_Free(os, mem); \
+    mem = gcvNULL
+
+#define gcmOS_SAFE_FREE_SHARED_MEMORY(os, mem) \
+    gcoOS_FreeSharedMemory(os, mem); \
+    mem = gcvNULL
+
+#define gcmkOS_SAFE_FREE(os, mem) \
+    gckOS_Free(os, mem); \
+    mem = gcvNULL
+
+#define gcdMAX_PATH 512
+
+typedef enum _gceFILE_MODE
+{
+    gcvFILE_CREATE          = 0,
+    gcvFILE_APPEND,
+    gcvFILE_READ,
+    gcvFILE_CREATETEXT,
+    gcvFILE_APPENDTEXT,
+    gcvFILE_READTEXT,
+}
+gceFILE_MODE;
+
+/* Open a file. */
+gceSTATUS
+gcoOS_Open(
+    IN gcoOS Os,
+    IN gctCONST_STRING FileName,
+    IN gceFILE_MODE Mode,
+    OUT gctFILE * File
+    );
+
+/* Close a file. */
+gceSTATUS
+gcoOS_Close(
+    IN gcoOS Os,
+    IN gctFILE File
+    );
+
+/* Read data from a file. */
+gceSTATUS
+gcoOS_Read(
+    IN gcoOS Os,
+    IN gctFILE File,
+    IN gctSIZE_T ByteCount,
+    IN gctPOINTER Data,
+    OUT gctSIZE_T * ByteRead
+    );
+
+/* Write data to a file. */
+gceSTATUS
+gcoOS_Write(
+    IN gcoOS Os,
+    IN gctFILE File,
+    IN gctSIZE_T ByteCount,
+    IN gctCONST_POINTER Data
+    );
+
+/* Flush data to a file. */
+gceSTATUS
+gcoOS_Flush(
+    IN gcoOS Os,
+    IN gctFILE File
+    );
+
+/* Close a file descriptor. */
+gceSTATUS
+gcoOS_CloseFD(
+    IN gcoOS Os,
+    IN gctINT FD
+    );
+
+/* Scan a file. */
+gceSTATUS
+gcoOS_FscanfI(
+    IN gcoOS Os,
+    IN gctFILE File,
+    IN gctCONST_STRING Format,
+    OUT gctUINT *result
+    );
+
+/* Dup file descriptor to another. */
+gceSTATUS
+gcoOS_DupFD(
+    IN gcoOS Os,
+    IN gctINT FD,
+    OUT gctINT * FD2
+    );
+
+/* Create an endpoint for communication. */
+gceSTATUS
+gcoOS_Socket(
+    IN gcoOS Os,
+    IN gctINT Domain,
+    IN gctINT Type,
+    IN gctINT Protocol,
+    OUT gctINT *SockFd
+    );
+
+/* Close a socket. */
+gceSTATUS
+gcoOS_CloseSocket(
+    IN gcoOS Os,
+    IN gctINT SockFd
+    );
+
+/* Initiate a connection on a socket. */
+gceSTATUS
+gcoOS_Connect(
+    IN gcoOS Os,
+    IN gctINT SockFd,
+    IN gctCONST_POINTER HostName,
+    IN gctUINT Port);
+
+/* Shut down part of connection on a socket. */
+gceSTATUS
+gcoOS_Shutdown(
+    IN gcoOS Os,
+    IN gctINT SockFd,
+    IN gctINT How
+    );
+
+/* Send a message on a socket. */
+gceSTATUS
+gcoOS_Send(
+    IN gcoOS Os,
+    IN gctINT SockFd,
+    IN gctSIZE_T ByteCount,
+    IN gctCONST_POINTER Data,
+    IN gctINT Flags
+    );
+
+/* Initiate a connection on a socket. */
+gceSTATUS
+gcoOS_WaitForSend(
+    IN gcoOS Os,
+    IN gctINT SockFd,
+    IN gctINT Seconds,
+    IN gctINT MicroSeconds);
+
+/* Get environment variable value. */
+gceSTATUS
+gcoOS_GetEnv(
+    IN gcoOS Os,
+    IN gctCONST_STRING VarName,
+    OUT gctSTRING * Value
+    );
+
+/* Set environment variable value. */
+gceSTATUS
+gcoOS_SetEnv(
+    IN gcoOS Os,
+    IN gctCONST_STRING VarName,
+    IN gctSTRING Value
+    );
+
+/* Get current working directory. */
+gceSTATUS
+gcoOS_GetCwd(
+    IN gcoOS Os,
+    IN gctINT SizeInBytes,
+    OUT gctSTRING Buffer
+    );
+
+/* Get file status info. */
+gceSTATUS
+gcoOS_Stat(
+    IN gcoOS Os,
+    IN gctCONST_STRING FileName,
+    OUT gctPOINTER Buffer
+    );
+
+typedef enum _gceFILE_WHENCE
+{
+    gcvFILE_SEEK_SET,
+    gcvFILE_SEEK_CUR,
+    gcvFILE_SEEK_END
+}
+gceFILE_WHENCE;
+
+/* Set the current position of a file. */
+gceSTATUS
+gcoOS_Seek(
+    IN gcoOS Os,
+    IN gctFILE File,
+    IN gctUINT32 Offset,
+    IN gceFILE_WHENCE Whence
+    );
+
+/* Set the current position of a file. */
+gceSTATUS
+gcoOS_SetPos(
+    IN gcoOS Os,
+    IN gctFILE File,
+    IN gctUINT32 Position
+    );
+
+/* Get the current position of a file. */
+gceSTATUS
+gcoOS_GetPos(
+    IN gcoOS Os,
+    IN gctFILE File,
+    OUT gctUINT32 * Position
+    );
+
+/* Same as strstr. */
+gceSTATUS
+gcoOS_StrStr(
+    IN gctCONST_STRING String,
+    IN gctCONST_STRING SubString,
+    OUT gctSTRING * Output
+    );
+
+/* Find the last occurance of a character inside a string. */
+gceSTATUS
+gcoOS_StrFindReverse(
+    IN gctCONST_STRING String,
+    IN gctINT8 Character,
+    OUT gctSTRING * Output
+    );
+
+gceSTATUS
+gcoOS_StrDup(
+    IN gcoOS Os,
+    IN gctCONST_STRING String,
+    OUT gctSTRING * Target
+    );
+
+/* Copy a string. */
+gceSTATUS
+gcoOS_StrCopySafe(
+    IN gctSTRING Destination,
+    IN gctSIZE_T DestinationSize,
+    IN gctCONST_STRING Source
+    );
+
+/* Append a string. */
+gceSTATUS
+gcoOS_StrCatSafe(
+    IN gctSTRING Destination,
+    IN gctSIZE_T DestinationSize,
+    IN gctCONST_STRING Source
+    );
+
+/* Compare two strings. */
+gceSTATUS
+gcoOS_StrCmp(
+    IN gctCONST_STRING String1,
+    IN gctCONST_STRING String2
+    );
+
+/* Compare characters of two strings. */
+gceSTATUS
+gcoOS_StrNCmp(
+    IN gctCONST_STRING String1,
+    IN gctCONST_STRING String2,
+    IN gctSIZE_T Count
+    );
+
+/* Convert string to float. */
+gceSTATUS
+gcoOS_StrToFloat(
+    IN gctCONST_STRING String,
+    OUT gctFLOAT * Float
+    );
+
+/* Convert hex string to integer. */
+gceSTATUS gcoOS_HexStrToInt(
+    IN gctCONST_STRING String,
+    OUT gctINT * Int
+    );
+
+/* Convert hex string to float. */
+gceSTATUS
+gcoOS_HexStrToFloat(
+    IN gctCONST_STRING String,
+    OUT gctFLOAT * Float
+    );
+
+/* Convert string to integer. */
+gceSTATUS
+gcoOS_StrToInt(
+    IN gctCONST_STRING String,
+    OUT gctINT * Int
+    );
+
+gceSTATUS
+gcoOS_MemCmp(
+    IN gctCONST_POINTER Memory1,
+    IN gctCONST_POINTER Memory2,
+    IN gctSIZE_T Bytes
+    );
+
+gceSTATUS
+gcoOS_PrintStrSafe(
+    OUT gctSTRING String,
+    IN gctSIZE_T StringSize,
+    IN OUT gctUINT * Offset,
+    IN gctCONST_STRING Format,
+    ...
+    );
+
+gceSTATUS
+gcoOS_LoadLibrary(
+    IN gcoOS Os,
+    IN gctCONST_STRING Library,
+    OUT gctHANDLE * Handle
+    );
+
+gceSTATUS
+gcoOS_FreeLibrary(
+    IN gcoOS Os,
+    IN gctHANDLE Handle
+    );
+
+gceSTATUS
+gcoOS_GetProcAddress(
+    IN gcoOS Os,
+    IN gctHANDLE Handle,
+    IN gctCONST_STRING Name,
+    OUT gctPOINTER * Function
+    );
+
+gceSTATUS
+gcoOS_Compact(
+    IN gcoOS Os
+    );
+
+gceSTATUS
+gcoOS_AddSignalHandler (
+    IN gceSignalHandlerType SignalHandlerType
+    );
+
+#if VIVANTE_PROFILER
+gceSTATUS
+gcoOS_ProfileStart(
+    IN gcoOS Os
+    );
+
+gceSTATUS
+gcoOS_ProfileEnd(
+    IN gcoOS Os,
+    IN gctCONST_STRING Title
+    );
+
+gceSTATUS
+gcoOS_SetProfileSetting(
+        IN gcoOS Os,
+        IN gctBOOL Enable,
+        IN gctCONST_STRING FileName
+        );
+#endif
+
+/* Query the video memory. */
+gceSTATUS
+gcoOS_QueryVideoMemory(
+    IN gcoOS Os,
+    OUT gctPHYS_ADDR * InternalAddress,
+    OUT gctSIZE_T * InternalSize,
+    OUT gctPHYS_ADDR * ExternalAddress,
+    OUT gctSIZE_T * ExternalSize,
+    OUT gctPHYS_ADDR * ContiguousAddress,
+    OUT gctSIZE_T * ContiguousSize
+    );
+
+gceSTATUS
+gcoOS_QueryCurrentProcessName(
+    OUT gctSTRING Name,
+    IN gctSIZE_T Size
+    );
+
+/* Detect if the current process is the executable specified. */
+gceSTATUS
+gcoOS_DetectProcessByName(
+    IN gctCONST_STRING Name
+    );
+
+gceSTATUS
+gcoOS_DetectProcessByEncryptedName(
+    IN gctCONST_STRING Name
+    );
+
+#if defined(ANDROID)
+gceSTATUS
+gcoOS_DetectProgrameByEncryptedSymbols(
+    IN gcoOS_SymbolsList Symbols
+    );
+#endif
+
+/*----------------------------------------------------------------------------*/
+/*----- Atoms ----------------------------------------------------------------*/
+
+/* Construct an atom. */
+gceSTATUS
+gcoOS_AtomConstruct(
+    IN gcoOS Os,
+    OUT gcsATOM_PTR * Atom
+    );
+
+/* Destroy an atom. */
+gceSTATUS
+gcoOS_AtomDestroy(
+    IN gcoOS Os,
+    IN gcsATOM_PTR Atom
+    );
+
+/* Get the 32-bit value protected by an atom. */
+gceSTATUS
+gcoOS_AtomGet(
+    IN gcoOS Os,
+    IN gcsATOM_PTR Atom,
+    OUT gctINT32_PTR Value
+    );
+
+/* Set the 32-bit value protected by an atom. */
+gceSTATUS
+gcoOS_AtomSet(
+    IN gcoOS Os,
+    IN gcsATOM_PTR Atom,
+    IN gctINT32 Value
+    );
+
+/* Increment an atom. */
+gceSTATUS
+gcoOS_AtomIncrement(
+    IN gcoOS Os,
+    IN gcsATOM_PTR Atom,
+    OUT gctINT32_PTR OldValue
+    );
+
+/* Decrement an atom. */
+gceSTATUS
+gcoOS_AtomDecrement(
+    IN gcoOS Os,
+    IN gcsATOM_PTR Atom,
+    OUT gctINT32_PTR OldValue
+    );
+
+gctHANDLE
+gcoOS_GetCurrentProcessID(
+    void
+    );
+
+gctHANDLE
+gcoOS_GetCurrentThreadID(
+    void
+    );
+
+/*----------------------------------------------------------------------------*/
+/*----- Time -----------------------------------------------------------------*/
+
+/* Get the number of milliseconds since the system started. */
+gctUINT32
+gcoOS_GetTicks(
+    void
+    );
+
+/* Get time in microseconds. */
+gceSTATUS
+gcoOS_GetTime(
+    gctUINT64_PTR Time
+    );
+
+/* Get CPU usage in microseconds. */
+gceSTATUS
+gcoOS_GetCPUTime(
+    gctUINT64_PTR CPUTime
+    );
+
+/* Get memory usage. */
+gceSTATUS
+gcoOS_GetMemoryUsage(
+    gctUINT32_PTR MaxRSS,
+    gctUINT32_PTR IxRSS,
+    gctUINT32_PTR IdRSS,
+    gctUINT32_PTR IsRSS
+    );
+
+/* Delay a number of microseconds. */
+gceSTATUS
+gcoOS_Delay(
+    IN gcoOS Os,
+    IN gctUINT32 Delay
+    );
+
+/*----------------------------------------------------------------------------*/
+/*----- Threads --------------------------------------------------------------*/
+
+#ifdef _WIN32
+/* Cannot include windows.h here becuase "near" and "far"
+ * which are used in gcsDEPTH_INFO, are defined to nothing in WinDef.h.
+ * So, use the real value of DWORD and WINAPI, instead.
+ * DWORD is unsigned long, and WINAPI is __stdcall.
+ * If these two are change in WinDef.h, the following two typdefs
+ * need to be changed, too.
+ */
+typedef unsigned long gctTHREAD_RETURN;
+typedef unsigned long (__stdcall * gcTHREAD_ROUTINE)(void * Argument);
+#else
+typedef void * gctTHREAD_RETURN;
+typedef void * (* gcTHREAD_ROUTINE)(void *);
+#endif
+
+/* Create a new thread. */
+gceSTATUS
+gcoOS_CreateThread(
+    IN gcoOS Os,
+    IN gcTHREAD_ROUTINE Worker,
+    IN gctPOINTER Argument,
+    OUT gctPOINTER * Thread
+    );
+
+/* Close a thread. */
+gceSTATUS
+gcoOS_CloseThread(
+    IN gcoOS Os,
+    IN gctPOINTER Thread
+    );
+
+/*----------------------------------------------------------------------------*/
+/*----- Mutexes --------------------------------------------------------------*/
+
+/* Create a new mutex. */
+gceSTATUS
+gcoOS_CreateMutex(
+    IN gcoOS Os,
+    OUT gctPOINTER * Mutex
+    );
+
+/* Delete a mutex. */
+gceSTATUS
+gcoOS_DeleteMutex(
+    IN gcoOS Os,
+    IN gctPOINTER Mutex
+    );
+
+/* Acquire a mutex. */
+gceSTATUS
+gcoOS_AcquireMutex(
+    IN gcoOS Os,
+    IN gctPOINTER Mutex,
+    IN gctUINT32 Timeout
+    );
+
+/* Release a mutex. */
+gceSTATUS
+gcoOS_ReleaseMutex(
+    IN gcoOS Os,
+    IN gctPOINTER Mutex
+    );
+
+/*----------------------------------------------------------------------------*/
+/*----- Signals --------------------------------------------------------------*/
+
+/* Create a signal. */
+gceSTATUS
+gcoOS_CreateSignal(
+    IN gcoOS Os,
+    IN gctBOOL ManualReset,
+    OUT gctSIGNAL * Signal
+    );
+
+/* Destroy a signal. */
+gceSTATUS
+gcoOS_DestroySignal(
+    IN gcoOS Os,
+    IN gctSIGNAL Signal
+    );
+
+/* Signal a signal. */
+gceSTATUS
+gcoOS_Signal(
+    IN gcoOS Os,
+    IN gctSIGNAL Signal,
+    IN gctBOOL State
+    );
+
+/* Wait for a signal. */
+gceSTATUS
+gcoOS_WaitSignal(
+    IN gcoOS Os,
+    IN gctSIGNAL Signal,
+    IN gctUINT32 Wait
+    );
+
+/* Map a signal from another process */
+gceSTATUS
+gcoOS_MapSignal(
+    IN gctSIGNAL  RemoteSignal,
+    OUT gctSIGNAL * LocalSignal
+    );
+
+/* Unmap a signal mapped from another process */
+gceSTATUS
+gcoOS_UnmapSignal(
+    IN gctSIGNAL Signal
+    );
+
+/*----------------------------------------------------------------------------*/
+/*----- Android Native Fence -------------------------------------------------*/
+
+/* Create sync point. */
+gceSTATUS
+gcoOS_CreateSyncPoint(
+    IN gcoOS Os,
+    OUT gctSYNC_POINT * SyncPoint
+    );
+
+/* Destroy sync point. */
+gceSTATUS
+gcoOS_DestroySyncPoint(
+    IN gcoOS Os,
+    IN gctSYNC_POINT SyncPoint
+    );
+
+/* Create native fence. */
+gceSTATUS
+gcoOS_CreateNativeFence(
+    IN gcoOS Os,
+    IN gctSYNC_POINT SyncPoint,
+    OUT gctINT * FenceFD
+    );
+
+/* (CPU) Wait on native fence. */
+gceSTATUS
+gcoOS_ClientWaitNativeFence(
+    IN gcoOS Os,
+    IN gctINT FenceFD,
+    IN gctUINT32 Timeout
+    );
+
+/* (GPU) Wait on native fence. */
+gceSTATUS
+gcoOS_WaitNativeFence(
+    IN gcoOS Os,
+    IN gctINT FenceFD,
+    IN gctUINT32 Timeout
+    );
+
+/*----------------------------------------------------------------------------*/
+/*----- Memory Access and Cache ----------------------------------------------*/
+
+/* Write a register. */
+gceSTATUS
+gcoOS_WriteRegister(
+    IN gcoOS Os,
+    IN gctUINT32 Address,
+    IN gctUINT32 Data
+    );
+
+/* Read a register. */
+gceSTATUS
+gcoOS_ReadRegister(
+    IN gcoOS Os,
+    IN gctUINT32 Address,
+    OUT gctUINT32 * Data
+    );
+
+gceSTATUS
+gcoOS_CacheClean(
+    IN gcoOS Os,
+    IN gctUINT32 Node,
+    IN gctPOINTER Logical,
+    IN gctSIZE_T Bytes
+    );
+
+gceSTATUS
+gcoOS_CacheFlush(
+    IN gcoOS Os,
+    IN gctUINT32 Node,
+    IN gctPOINTER Logical,
+    IN gctSIZE_T Bytes
+    );
+
+gceSTATUS
+gcoOS_CacheInvalidate(
+    IN gcoOS Os,
+    IN gctUINT32 Node,
+    IN gctPOINTER Logical,
+    IN gctSIZE_T Bytes
+    );
+
+gceSTATUS
+gcoOS_MemoryBarrier(
+    IN gcoOS Os,
+    IN gctPOINTER Logical
+    );
+
+gceSTATUS
+gcoOS_CPUPhysicalToGPUPhysical(
+    IN gctUINT32 CPUPhysical,
+    OUT gctUINT32_PTR GPUPhysical
+    );
+
+/*----------------------------------------------------------------------------*/
+/*----- Profile --------------------------------------------------------------*/
+
+gceSTATUS
+gckOS_GetProfileTick(
+    OUT gctUINT64_PTR Tick
+    );
+
+gceSTATUS
+gckOS_QueryProfileTickRate(
+    OUT gctUINT64_PTR TickRate
+    );
+
+gctUINT32
+gckOS_ProfileToMS(
+    IN gctUINT64 Ticks
+    );
+
+gceSTATUS
+gcoOS_GetProfileTick(
+    OUT gctUINT64_PTR Tick
+    );
+
+gceSTATUS
+gcoOS_QueryProfileTickRate(
+    OUT gctUINT64_PTR TickRate
+    );
+
+#define _gcmPROFILE_INIT(prefix, freq, start) \
+    do { \
+        prefix ## OS_QueryProfileTickRate(&(freq)); \
+        prefix ## OS_GetProfileTick(&(start)); \
+    } while (gcvFALSE)
+
+#define _gcmPROFILE_QUERY(prefix, start, ticks) \
+    do { \
+        prefix ## OS_GetProfileTick(&(ticks)); \
+        (ticks) = ((ticks) > (start)) ? ((ticks) - (start)) \
+                                      : (~0ull - (start) + (ticks) + 1); \
+    } while (gcvFALSE)
+
+#if gcdENABLE_PROFILING
+#   define gcmkPROFILE_INIT(freq, start)    _gcmPROFILE_INIT(gck, freq, start)
+#   define gcmkPROFILE_QUERY(start, ticks)  _gcmPROFILE_QUERY(gck, start, ticks)
+#   define gcmPROFILE_INIT(freq, start)     _gcmPROFILE_INIT(gco, freq, start)
+#   define gcmPROFILE_QUERY(start, ticks)   _gcmPROFILE_QUERY(gco, start, ticks)
+#   define gcmPROFILE_ONLY(x)               x
+#   define gcmPROFILE_ELSE(x)               do { } while (gcvFALSE)
+#   define gcmPROFILE_DECLARE_ONLY(x)       x
+#   define gcmPROFILE_DECLARE_ELSE(x)       typedef x
+#else
+#   define gcmkPROFILE_INIT(start, freq)    do { } while (gcvFALSE)
+#   define gcmkPROFILE_QUERY(start, ticks)  do { } while (gcvFALSE)
+#   define gcmPROFILE_INIT(start, freq)     do { } while (gcvFALSE)
+#   define gcmPROFILE_QUERY(start, ticks)   do { } while (gcvFALSE)
+#   define gcmPROFILE_ONLY(x)               do { } while (gcvFALSE)
+#   define gcmPROFILE_ELSE(x)               x
+#   define gcmPROFILE_DECLARE_ONLY(x)       do { } while (gcvFALSE)
+#   define gcmPROFILE_DECLARE_ELSE(x)       x
+#endif
+
+/*******************************************************************************
+**  gcoMATH object
+*/
+
+#define gcdPI                   3.14159265358979323846f
+
+/* Kernel. */
+gctINT
+gckMATH_ModuloInt(
+    IN gctINT X,
+    IN gctINT Y
+    );
+
+/* User. */
+gctUINT32
+gcoMATH_Log2in5dot5(
+    IN gctINT X
+    );
+
+
+gctFLOAT
+gcoMATH_UIntAsFloat(
+    IN gctUINT32 X
+    );
+
+gctUINT32
+gcoMATH_FloatAsUInt(
+    IN gctFLOAT X
+    );
+
+gctBOOL
+gcoMATH_CompareEqualF(
+    IN gctFLOAT X,
+    IN gctFLOAT Y
+    );
+
+gctUINT16
+gcoMATH_UInt8AsFloat16(
+    IN gctUINT8 X
+    );
+
+gctUINT32
+gcoMATH_Float16ToFloat(
+    IN gctUINT16 In
+    );
+
+gctUINT16
+gcoMATH_FloatToFloat16(
+    IN gctUINT32 In
+    );
+
+gctUINT32
+gcoMATH_Float11ToFloat(
+    IN gctUINT32 In
+    );
+
+gctUINT16
+gcoMATH_FloatToFloat11(
+    IN gctUINT32 In
+    );
+
+gctUINT32
+gcoMATH_Float10ToFloat(
+    IN gctUINT32 In
+    );
+
+gctUINT16
+gcoMATH_FloatToFloat10(
+    IN gctUINT32 In
+    );
+
+gctUINT32
+gcoMATH_Float14ToFloat(
+    IN gctUINT16 In
+    );
+
+/******************************************************************************\
+**************************** Coordinate Structures *****************************
+\******************************************************************************/
+
+typedef struct _gcsPOINT
+{
+    gctINT32                    x;
+    gctINT32                    y;
+}
+gcsPOINT;
+
+typedef struct _gcsSIZE
+{
+    gctINT32                    width;
+    gctINT32                    height;
+}
+gcsSIZE;
+
+typedef struct _gcsRECT
+{
+    gctINT32                    left;
+    gctINT32                    top;
+    gctINT32                    right;
+    gctINT32                    bottom;
+}
+gcsRECT;
+
+typedef union _gcsPIXEL
+{
+    struct
+    {
+        gctFLOAT r, g, b, a;
+        gctFLOAT d, s;
+    } pf;
+
+    struct
+    {
+        gctINT32 r, g, b, a;
+        gctINT32 d, s;
+    } pi;
+
+    struct
+    {
+        gctUINT32 r, g, b, a;
+        gctUINT32 d, s;
+    } pui;
+
+} gcsPIXEL;
+
+/******************************************************************************\
+********************************* gcoSURF Object ********************************
+\******************************************************************************/
+
+/*----------------------------------------------------------------------------*/
+/*------------------------------- gcoSURF Common ------------------------------*/
+
+/* Color format classes. */
+typedef enum _gceFORMAT_CLASS
+{
+    gcvFORMAT_CLASS_RGBA        = 4500,
+    gcvFORMAT_CLASS_YUV,
+    gcvFORMAT_CLASS_INDEX,
+    gcvFORMAT_CLASS_LUMINANCE,
+    gcvFORMAT_CLASS_BUMP,
+    gcvFORMAT_CLASS_DEPTH,
+    gcvFORMAT_CLASS_ASTC,
+    gcvFORMAT_CLASS_OTHER
+}
+gceFORMAT_CLASS;
+
+/* Color format data type */
+typedef enum _gceFORMAT_DATATYPE
+{
+    gcvFORMAT_DATATYPE_UNSIGNED_NORMALIZED,
+    gcvFORMAT_DATATYPE_SIGNED_NORMALIZED,
+    gcvFORMAT_DATATYPE_UNSIGNED_INTEGER,
+    gcvFORMAT_DATATYPE_SIGNED_INTEGER,
+    gcvFORMAT_DATATYPE_FLOAT16,
+    gcvFORMAT_DATATYPE_FLOAT32,
+    gcvFORMAT_DATATYPE_FLOAT_E5B9G9R9,
+    gcvFORMAT_DATATYPE_FLOAT_B10G11R11F,
+    gcvFORMAT_DATATYPE_INDEX,
+    gcvFORMAT_DATATYPE_SRGB,
+    gcvFORMAT_DATATYPE_FLOAT32_UINT,
+}
+gceFORMAT_DATATYPE;
+
+/* Special enums for width field in gcsFORMAT_COMPONENT. */
+typedef enum _gceCOMPONENT_CONTROL
+{
+    gcvCOMPONENT_NOTPRESENT     = 0x00,
+    gcvCOMPONENT_DONTCARE       = 0x80,
+    gcvCOMPONENT_WIDTHMASK      = 0x7F,
+    gcvCOMPONENT_ODD            = 0x80
+}
+gceCOMPONENT_CONTROL;
+
+/* Color format component parameters. */
+typedef struct _gcsFORMAT_COMPONENT
+{
+    gctUINT8                    start;
+    gctUINT8                    width;
+}
+gcsFORMAT_COMPONENT;
+
+/* RGBA color format class. */
+typedef struct _gcsFORMAT_CLASS_TYPE_RGBA
+{
+    gcsFORMAT_COMPONENT         alpha;
+    gcsFORMAT_COMPONENT         red;
+    gcsFORMAT_COMPONENT         green;
+    gcsFORMAT_COMPONENT         blue;
+}
+gcsFORMAT_CLASS_TYPE_RGBA;
+
+/* YUV color format class. */
+typedef struct _gcsFORMAT_CLASS_TYPE_YUV
+{
+    gcsFORMAT_COMPONENT         y;
+    gcsFORMAT_COMPONENT         u;
+    gcsFORMAT_COMPONENT         v;
+}
+gcsFORMAT_CLASS_TYPE_YUV;
+
+/* Index color format class. */
+typedef struct _gcsFORMAT_CLASS_TYPE_INDEX
+{
+    gcsFORMAT_COMPONENT         value;
+}
+gcsFORMAT_CLASS_TYPE_INDEX;
+
+/* Luminance color format class. */
+typedef struct _gcsFORMAT_CLASS_TYPE_LUMINANCE
+{
+    gcsFORMAT_COMPONENT         alpha;
+    gcsFORMAT_COMPONENT         value;
+}
+gcsFORMAT_CLASS_TYPE_LUMINANCE;
+
+/* Bump map color format class. */
+typedef struct _gcsFORMAT_CLASS_TYPE_BUMP
+{
+    gcsFORMAT_COMPONENT         alpha;
+    gcsFORMAT_COMPONENT         l;
+    gcsFORMAT_COMPONENT         v;
+    gcsFORMAT_COMPONENT         u;
+    gcsFORMAT_COMPONENT         q;
+    gcsFORMAT_COMPONENT         w;
+}
+gcsFORMAT_CLASS_TYPE_BUMP;
+
+/* Depth and stencil format class. */
+typedef struct _gcsFORMAT_CLASS_TYPE_DEPTH
+{
+    gcsFORMAT_COMPONENT         depth;
+    gcsFORMAT_COMPONENT         stencil;
+}
+gcsFORMAT_CLASS_TYPE_DEPTH;
+
+typedef union _gcuPIXEL_FORMAT_CLASS
+{
+    gcsFORMAT_CLASS_TYPE_BUMP       bump;
+    gcsFORMAT_CLASS_TYPE_RGBA       rgba;
+    gcsFORMAT_CLASS_TYPE_YUV        yuv;
+    gcsFORMAT_CLASS_TYPE_LUMINANCE  lum;
+    gcsFORMAT_CLASS_TYPE_INDEX      index;
+    gcsFORMAT_CLASS_TYPE_DEPTH      depth;
+}
+gcuPIXEL_FORMAT_CLASS;
+
+/* Format parameters. */
+typedef struct _gcsSURF_FORMAT_INFO
+{
+    /* Name of the format */
+    gctCONST_STRING             formatName;
+
+    /* Format code and class. */
+    gceSURF_FORMAT              format;
+    gceFORMAT_CLASS             fmtClass;
+
+    /* Format data type */
+    gceFORMAT_DATATYPE          fmtDataType;
+
+    /* The size of one pixel in bits. */
+    gctUINT8                    bitsPerPixel;
+
+    /* Pixel block dimensions. */
+    gctUINT                     blockWidth;
+    gctUINT                     blockHeight;
+
+    /* Pixel block size in bits. */
+    gctUINT                     blockSize;
+
+    /* Some formats are larger than what the GPU can support.      */
+    /* These formats are read in the number of layers specified.   */
+    gctUINT8                    layers;
+
+    /* The format is faked and software will interpret it differently
+    ** with HW. Most of them can't be blendable(PE) or filterable(TX).
+    */
+    gctBOOL                     fakedFormat;
+
+    /* Some formats have two neighbour pixels interleaved together. */
+    /* To describe such format, set the flag to 1 and add another   */
+    /* like this one describing the odd pixel format.               */
+    gctBOOL                     interleaved;
+
+    /* sRGB format. */
+    gctBOOL                     sRGB;
+
+    /* Format components. */
+    gcuPIXEL_FORMAT_CLASS       u;
+
+    /* Format components. */
+    gcuPIXEL_FORMAT_CLASS       uOdd;
+
+    /* Render format. */
+    gceSURF_FORMAT              closestRenderFormat;
+    /*gctCLOSEST_FORMAT           dynamicClosestRenderFormat;*/
+    gctUINT                     renderFormat;
+    const gceTEXTURE_SWIZZLE  * pixelSwizzle;
+
+    /* Texture format. */
+    gceSURF_FORMAT              closestTXFormat;
+    gctUINT                     txFormat;
+    const gceTEXTURE_SWIZZLE  * txSwizzle;
+    gctBOOL                     txIntFilter;
+}
+gcsSURF_FORMAT_INFO;
+
+/* Frame buffer information. */
+typedef struct _gcsSURF_FRAMEBUFFER
+{
+    gctPOINTER                  logical;
+    gctUINT                     width, height;
+    gctINT                      stride;
+    gceSURF_FORMAT              format;
+}
+gcsSURF_FRAMEBUFFER;
+
+/* Generic pixel component descriptors. */
+extern gcsFORMAT_COMPONENT gcvPIXEL_COMP_XXX8;
+extern gcsFORMAT_COMPONENT gcvPIXEL_COMP_XX8X;
+extern gcsFORMAT_COMPONENT gcvPIXEL_COMP_X8XX;
+extern gcsFORMAT_COMPONENT gcvPIXEL_COMP_8XXX;
+
+typedef enum _gceORIENTATION
+{
+    gcvORIENTATION_TOP_BOTTOM,
+    gcvORIENTATION_BOTTOM_TOP,
+}
+gceORIENTATION;
+
+
+/* Construct a new gcoSURF object. */
+gceSTATUS
+gcoSURF_Construct(
+    IN gcoHAL Hal,
+    IN gctUINT Width,
+    IN gctUINT Height,
+    IN gctUINT Depth,
+    IN gceSURF_TYPE Type,
+    IN gceSURF_FORMAT Format,
+    IN gcePOOL Pool,
+    OUT gcoSURF * Surface
+    );
+
+/* Destroy an gcoSURF object. */
+gceSTATUS
+gcoSURF_Destroy(
+    IN gcoSURF Surface
+    );
+
+/* Map user-allocated surface. */
+gceSTATUS
+gcoSURF_MapUserSurface(
+    IN gcoSURF Surface,
+    IN gctUINT Alignment,
+    IN gctPOINTER Logical,
+    IN gctUINT32 Physical
+    );
+
+/* Wrapp surface with known logical/GPU address */
+gceSTATUS
+gcoSURF_WrapSurface(
+    IN gcoSURF Surface,
+    IN gctUINT Alignment,
+    IN gctPOINTER Logical,
+    IN gctUINT32 Physical
+    );
+
+
+/* Query vid mem node info. */
+gceSTATUS
+gcoSURF_QueryVidMemNode(
+    IN gcoSURF Surface,
+    OUT gctUINT32 * Node,
+    OUT gcePOOL * Pool,
+    OUT gctSIZE_T_PTR Bytes
+    );
+
+/* Set the color type of the surface. */
+gceSTATUS
+gcoSURF_SetColorType(
+    IN gcoSURF Surface,
+    IN gceSURF_COLOR_TYPE ColorType
+    );
+
+/* Get the color type of the surface. */
+gceSTATUS
+gcoSURF_GetColorType(
+    IN gcoSURF Surface,
+    OUT gceSURF_COLOR_TYPE *ColorType
+    );
+
+/* Set the color space of the surface. */
+gceSTATUS
+gcoSURF_SetColorSpace(
+    IN gcoSURF Surface,
+    IN gceSURF_COLOR_SPACE ColorSpace
+    );
+
+/* Get the color space of the surface. */
+gceSTATUS
+gcoSURF_GetColorSpace(
+    IN gcoSURF Surface,
+    OUT gceSURF_COLOR_SPACE *ColorSpace
+    );
+
+
+/* Set the surface ration angle. */
+gceSTATUS
+gcoSURF_SetRotation(
+    IN gcoSURF Surface,
+    IN gceSURF_ROTATION Rotation
+    );
+
+gceSTATUS
+gcoSURF_IsValid(
+    IN gcoSURF Surface
+    );
+
+
+/* Get surface size. */
+gceSTATUS
+gcoSURF_GetSize(
+    IN gcoSURF Surface,
+    OUT gctUINT * Width,
+    OUT gctUINT * Height,
+    OUT gctUINT * Depth
+    );
+
+/* Get surface aligned sizes. */
+gceSTATUS
+gcoSURF_GetAlignedSize(
+    IN gcoSURF Surface,
+    OUT gctUINT * Width,
+    OUT gctUINT * Height,
+    OUT gctINT * Stride
+    );
+
+/* Get alignments. */
+gceSTATUS
+gcoSURF_GetAlignment(
+    IN gceSURF_TYPE Type,
+    IN gceSURF_FORMAT Format,
+    OUT gctUINT * AddressAlignment,
+    OUT gctUINT * XAlignment,
+    OUT gctUINT * YAlignment
+    );
+
+gceSTATUS
+gcoSURF_AlignResolveRect(
+    IN gcoSURF Surf,
+    IN gcsPOINT_PTR RectOrigin,
+    IN gcsPOINT_PTR RectSize,
+    OUT gcsPOINT_PTR AlignedOrigin,
+    OUT gcsPOINT_PTR AlignedSize
+    );
+
+/* Get surface type and format. */
+gceSTATUS
+gcoSURF_GetFormat(
+    IN gcoSURF Surface,
+    OUT OPTIONAL gceSURF_TYPE * Type,
+    OUT OPTIONAL gceSURF_FORMAT * Format
+    );
+
+/* Get surface information */
+gceSTATUS
+gcoSURF_GetFormatInfo(
+    IN gcoSURF Surface,
+    OUT gcsSURF_FORMAT_INFO_PTR * formatInfo
+    );
+
+/* Get Surface pack format */
+gceSTATUS
+gcoSURF_GetPackedFormat(
+    IN gcoSURF Surface,
+    OUT gceSURF_FORMAT * Format
+    );
+
+/* Get surface tiling. */
+gceSTATUS
+gcoSURF_GetTiling(
+    IN gcoSURF Surface,
+    OUT gceTILING * Tiling
+    );
+
+/* Get flip bitmap offset bytes. */
+gceSTATUS
+gcoSURF_GetFlipBitmapOffset(
+    IN gcoSURF Surface,
+    OUT gctUINT_PTR FlipBitmapOffset
+    );
+
+/* Get bottom buffer offset bytes. */
+gceSTATUS
+gcoSURF_GetBottomBufferOffset(
+    IN gcoSURF Surface,
+    OUT gctUINT_PTR BottomBufferOffset
+    );
+
+/* Lock the surface. */
+gceSTATUS
+gcoSURF_Lock(
+    IN gcoSURF Surface,
+    IN OUT gctUINT32 * Address,
+    IN OUT gctPOINTER * Memory
+    );
+
+/* Unlock the surface. */
+gceSTATUS
+gcoSURF_Unlock(
+    IN gcoSURF Surface,
+    IN gctPOINTER Memory
+    );
+
+/*. Query surface flags.*/
+gceSTATUS
+gcoSURF_QueryFlags(
+    IN gcoSURF Surface,
+    IN gceSURF_FLAG Flag
+    );
+
+/* Return pixel format parameters; Info is required to be a pointer to an
+ * array of at least two items because some formats have up to two records
+ * of description. */
+gceSTATUS
+gcoSURF_QueryFormat(
+    IN gceSURF_FORMAT Format,
+    OUT gcsSURF_FORMAT_INFO_PTR * Info
+    );
+
+/* Compute the color pixel mask. */
+gceSTATUS
+gcoSURF_ComputeColorMask(
+    IN gcsSURF_FORMAT_INFO_PTR Format,
+    OUT gctUINT32_PTR ColorMask
+    );
+
+/* Flush the surface. */
+gceSTATUS
+gcoSURF_Flush(
+    IN gcoSURF Surface
+    );
+
+/* Fill surface from it's tile status buffer. */
+gceSTATUS
+gcoSURF_FillFromTile(
+    IN gcoSURF Surface
+    );
+
+/* Fill surface with a value. */
+gceSTATUS
+gcoSURF_Fill(
+    IN gcoSURF Surface,
+    IN gcsPOINT_PTR Origin,
+    IN gcsSIZE_PTR Size,
+    IN gctUINT32 Value,
+    IN gctUINT32 Mask
+    );
+
+/* Alpha blend two surfaces together. */
+gceSTATUS
+gcoSURF_Blend(
+    IN gcoSURF SrcSurface,
+    IN gcoSURF DestSurface,
+    IN gcsPOINT_PTR SrcOrig,
+    IN gcsPOINT_PTR DestOrigin,
+    IN gcsSIZE_PTR Size,
+    IN gceSURF_BLEND_MODE Mode
+    );
+
+/* Create a new gcoSURF wrapper object. */
+gceSTATUS
+gcoSURF_ConstructWrapper(
+    IN gcoHAL Hal,
+    OUT gcoSURF * Surface
+    );
+
+/* Set surface flags.*/
+gceSTATUS
+gcoSURF_SetFlags(
+    IN gcoSURF Surface,
+    IN gceSURF_FLAG Flag,
+    IN gctBOOL Value
+    );
+
+/* Set the underlying buffer for the surface wrapper. */
+gceSTATUS
+gcoSURF_SetBuffer(
+    IN gcoSURF Surface,
+    IN gceSURF_TYPE Type,
+    IN gceSURF_FORMAT Format,
+    IN gctUINT Stride,
+    IN gctPOINTER Logical,
+    IN gctUINT32 Physical
+    );
+
+/* Set the size of the surface in pixels and map the underlying buffer. */
+gceSTATUS
+gcoSURF_SetWindow(
+    IN gcoSURF Surface,
+    IN gctUINT X,
+    IN gctUINT Y,
+    IN gctUINT Width,
+    IN gctUINT Height
+    );
+
+/* Set width/height alignment of the surface directly and calculate stride/size. This is only for dri backend now. Please be careful before use. */
+gceSTATUS
+gcoSURF_SetAlignment(
+    IN gcoSURF Surface,
+    IN gctUINT Width,
+    IN gctUINT Height
+    );
+
+/* Increase reference count of the surface. */
+gceSTATUS
+gcoSURF_ReferenceSurface(
+    IN gcoSURF Surface
+    );
+
+/* Get surface reference count. */
+gceSTATUS
+gcoSURF_QueryReferenceCount(
+    IN gcoSURF Surface,
+    OUT gctINT32 * ReferenceCount
+    );
+
+/* Set surface orientation. */
+gceSTATUS
+gcoSURF_SetOrientation(
+    IN gcoSURF Surface,
+    IN gceORIENTATION Orientation
+    );
+
+/* Query surface orientation. */
+gceSTATUS
+gcoSURF_QueryOrientation(
+    IN gcoSURF Surface,
+    OUT gceORIENTATION * Orientation
+    );
+
+gceSTATUS
+gcoSURF_SetOffset(
+    IN gcoSURF Surface,
+    IN gctSIZE_T Offset
+    );
+
+gceSTATUS
+gcoSURF_NODE_Cache(
+    IN gcsSURF_NODE_PTR Node,
+    IN gctPOINTER Logical,
+    IN gctSIZE_T Bytes,
+    IN gceCACHEOPERATION Operation
+    );
+
+/* Lock and unlock surface node */
+gceSTATUS
+gcoSURF_LockNode(
+    IN gcsSURF_NODE_PTR Node,
+    OUT gctUINT32 * Address,
+    OUT gctPOINTER * Memory
+    );
+
+gceSTATUS
+gcoSURF_UnLockNode(
+    IN gcsSURF_NODE_PTR Node,
+    IN gceSURF_TYPE Type
+    );
+
+/* Perform CPU cache operation on surface node */
+gceSTATUS
+gcoSURF_NODE_CPUCacheOperation(
+    IN gcsSURF_NODE_PTR Node,
+    IN gceSURF_TYPE Type,
+    IN gctSIZE_T Offset,
+    IN gctSIZE_T Length,
+    IN gceCACHEOPERATION Operation
+    );
+
+/* Perform CPU cache operation on surface */
+gceSTATUS
+gcoSURF_CPUCacheOperation(
+    IN gcoSURF Surface,
+    IN gceCACHEOPERATION Operation
+    );
+
+gceSTATUS
+gcoSURF_WrapUserMultiBuffer(
+    IN gcoHAL Hal,
+    IN gctUINT Width,
+    IN gctUINT Height,
+    IN gceSURF_TYPE Type,
+    IN gceSURF_FORMAT Format,
+    IN gctUINT Stride[3],
+    IN gctUINT32 Handle[3],
+    IN gctUINT BufferOffset[3],
+    IN gctUINT32 Flag,
+    OUT gcoSURF * Surface
+    );
+
+gceSTATUS
+gcoSURF_Swap(
+    IN gcoSURF Surface1,
+    IN gcoSURF Surface2
+    );
+
+gceSTATUS
+gcoSURF_ResetSurWH(
+    IN gcoSURF Surface,
+    IN gctUINT oriw,
+    IN gctUINT orih,
+    IN gctUINT alignw,
+    IN gctUINT alignh,
+    IN gceSURF_FORMAT fmt
+);
+
+/* Update surface timestamp. */
+gceSTATUS
+gcoSURF_UpdateTimeStamp(
+    IN gcoSURF Surface
+    );
+
+/* Query surface current timestamp. */
+gceSTATUS
+gcoSURF_QueryTimeStamp(
+    IN gcoSURF Surface,
+    OUT gctUINT64 * TimeStamp
+    );
+
+/*
+ * Allocate shared buffer for this surface, so that
+ * surface states can be shared across processes.
+ */
+gceSTATUS
+gcoSURF_AllocShBuffer(
+    IN gcoSURF Surface,
+    OUT gctSHBUF * ShBuf
+    );
+
+/* Bind shared buffer to this surface */
+gceSTATUS
+gcoSURF_BindShBuffer(
+    IN gcoSURF Surface,
+    IN gctSHBUF ShBuf
+    );
+
+/* Push surface shared states to shared buffer. */
+gceSTATUS
+gcoSURF_PushSharedInfo(
+    IN gcoSURF Surface
+    );
+
+/* Pop shared states from shared buffer. */
+gceSTATUS
+gcoSURF_PopSharedInfo(
+    IN gcoSURF Surface
+    );
+
+
+gceSTATUS
+gcoSURF_WrapUserMemory(
+    IN gcoHAL Hal,
+    IN gctUINT Width,
+    IN gctUINT Height,
+    IN gctUINT Stride,
+    IN gctUINT Depth,
+    IN gceSURF_TYPE Type,
+    IN gceSURF_FORMAT Format,
+    IN gctUINT32 Handle,
+    IN gctUINT32 Flag,
+    OUT gcoSURF * Surface
+    );
+
+/******************************************************************************\
+********************************* gcoDUMP Object ********************************
+\******************************************************************************/
+
+/* Construct a new gcoDUMP object. */
+gceSTATUS
+gcoDUMP_Construct(
+    IN gcoOS Os,
+    IN gcoHAL Hal,
+    OUT gcoDUMP * Dump
+    );
+
+/* Destroy a gcoDUMP object. */
+gceSTATUS
+gcoDUMP_Destroy(
+    IN gcoDUMP Dump
+    );
+
+/* Enable/disable dumping. */
+gceSTATUS
+gcoDUMP_Control(
+    IN gcoDUMP Dump,
+    IN gctSTRING FileName
+    );
+
+gceSTATUS
+gcoDUMP_IsEnabled(
+    IN gcoDUMP Dump,
+    OUT gctBOOL * Enabled
+    );
+
+/* Add surface. */
+gceSTATUS
+gcoDUMP_AddSurface(
+    IN gcoDUMP Dump,
+    IN gctINT32 Width,
+    IN gctINT32 Height,
+    IN gceSURF_FORMAT PixelFormat,
+    IN gctUINT32 Address,
+    IN gctSIZE_T ByteCount
+    );
+
+/* Mark the beginning of a frame. */
+gceSTATUS
+gcoDUMP_FrameBegin(
+    IN gcoDUMP Dump
+    );
+
+/* Mark the end of a frame. */
+gceSTATUS
+gcoDUMP_FrameEnd(
+    IN gcoDUMP Dump
+    );
+
+/* Dump data. */
+gceSTATUS
+gcoDUMP_DumpData(
+    IN gcoDUMP Dump,
+    IN gceDUMP_TAG Type,
+    IN gctUINT32 Address,
+    IN gctSIZE_T ByteCount,
+    IN gctCONST_POINTER Data
+    );
+
+/* Delete an address. */
+gceSTATUS
+gcoDUMP_Delete(
+    IN gcoDUMP Dump,
+    IN gctUINT32 Address
+    );
+
+/* Enable dump or not. */
+gceSTATUS
+gcoDUMP_SetDumpFlag(
+    IN gctBOOL DumpState
+    );
+
+/******************************************************************************\
+******************************* gcsRECT Structure ******************************
+\******************************************************************************/
+
+/* Initialize rectangle structure. */
+gceSTATUS
+gcsRECT_Set(
+    OUT gcsRECT_PTR Rect,
+    IN gctINT32 Left,
+    IN gctINT32 Top,
+    IN gctINT32 Right,
+    IN gctINT32 Bottom
+    );
+
+/* Return the width of the rectangle. */
+gceSTATUS
+gcsRECT_Width(
+    IN gcsRECT_PTR Rect,
+    OUT gctINT32 * Width
+    );
+
+/* Return the height of the rectangle. */
+gceSTATUS
+gcsRECT_Height(
+    IN gcsRECT_PTR Rect,
+    OUT gctINT32 * Height
+    );
+
+/* Ensure that top left corner is to the left and above the right bottom. */
+gceSTATUS
+gcsRECT_Normalize(
+    IN OUT gcsRECT_PTR Rect
+    );
+
+/* Compare two rectangles. */
+gceSTATUS
+gcsRECT_IsEqual(
+    IN gcsRECT_PTR Rect1,
+    IN gcsRECT_PTR Rect2,
+    OUT gctBOOL * Equal
+    );
+
+/* Compare the sizes of two rectangles. */
+gceSTATUS
+gcsRECT_IsOfEqualSize(
+    IN gcsRECT_PTR Rect1,
+    IN gcsRECT_PTR Rect2,
+    OUT gctBOOL * EqualSize
+    );
+
+gceSTATUS
+gcsRECT_RelativeRotation(
+    IN gceSURF_ROTATION Orientation,
+    IN OUT gceSURF_ROTATION *Relation);
+
+gceSTATUS
+
+gcsRECT_Rotate(
+
+    IN OUT gcsRECT_PTR Rect,
+
+    IN gceSURF_ROTATION Rotation,
+
+    IN gceSURF_ROTATION toRotation,
+
+    IN gctINT32 SurfaceWidth,
+
+    IN gctINT32 SurfaceHeight
+
+    );
+
+/******************************************************************************\
+**************************** gcsBOUNDARY Structure *****************************
+\******************************************************************************/
+
+typedef struct _gcsBOUNDARY
+{
+    gctINT                      x;
+    gctINT                      y;
+    gctINT                      width;
+    gctINT                      height;
+}
+gcsBOUNDARY;
+
+/******************************************************************************\
+********************************* gcoHEAP Object ********************************
+\******************************************************************************/
+
+typedef struct _gcoHEAP *       gcoHEAP;
+
+/* Construct a new gcoHEAP object. */
+gceSTATUS
+gcoHEAP_Construct(
+    IN gcoOS Os,
+    IN gctSIZE_T AllocationSize,
+    OUT gcoHEAP * Heap
+    );
+
+/* Destroy an gcoHEAP object. */
+gceSTATUS
+gcoHEAP_Destroy(
+    IN gcoHEAP Heap
+    );
+
+/* Allocate memory. */
+gceSTATUS
+gcoHEAP_Allocate(
+    IN gcoHEAP Heap,
+    IN gctSIZE_T Bytes,
+    OUT gctPOINTER * Node
+    );
+
+gceSTATUS
+gcoHEAP_GetMemorySize(
+    IN gcoHEAP Heap,
+    IN gctPOINTER Memory,
+    OUT gctSIZE_T_PTR MemorySize
+    );
+
+/* Free memory. */
+gceSTATUS
+gcoHEAP_Free(
+    IN gcoHEAP Heap,
+    IN gctPOINTER Node
+    );
+
+#if (VIVANTE_PROFILER  || gcdDEBUG)
+/* Profile the heap. */
+gceSTATUS
+gcoHEAP_ProfileStart(
+    IN gcoHEAP Heap
+    );
+
+gceSTATUS
+gcoHEAP_ProfileEnd(
+    IN gcoHEAP Heap,
+    IN gctCONST_STRING Title
+    );
+#endif
+
+
+/******************************************************************************\
+******************************* Debugging Macros *******************************
+\******************************************************************************/
+
+void
+gcoOS_SetDebugLevel(
+    IN gctUINT32 Level
+    );
+
+void
+gcoOS_GetDebugLevel(
+    OUT gctUINT32_PTR DebugLevel
+    );
+
+void
+gcoOS_SetDebugZone(
+    IN gctUINT32 Zone
+    );
+
+void
+gcoOS_GetDebugZone(
+    IN gctUINT32 Zone,
+    OUT gctUINT32_PTR DebugZone
+    );
+
+void
+gcoOS_SetDebugLevelZone(
+    IN gctUINT32 Level,
+    IN gctUINT32 Zone
+    );
+
+void
+gcoOS_SetDebugZones(
+    IN gctUINT32 Zones,
+    IN gctBOOL Enable
+    );
+
+void
+gcoOS_SetDebugFile(
+    IN gctCONST_STRING FileName
+    );
+
+gctFILE
+gcoOS_ReplaceDebugFile(
+    IN gctFILE fp
+    );
+
+void
+gcoOS_SysTraceBegin(
+    IN gctCONST_STRING FuncName
+    );
+
+void
+gcoOS_SysTraceEnd(
+    IN void);
+
+/*******************************************************************************
+**
+**  gcmFATAL
+**
+**      Print a message to the debugger and execute a break point.
+**
+**  ARGUMENTS:
+**
+**      message Message.
+**      ...     Optional arguments.
+*/
+
+void
+gckOS_DebugFatal(
+    IN gctCONST_STRING Message,
+    ...
+    );
+
+void
+gcoOS_DebugFatal(
+    IN gctCONST_STRING Message,
+    ...
+    );
+
+#if gcmIS_DEBUG(gcdDEBUG_FATAL)
+#   define gcmFATAL             gcoOS_DebugFatal
+#   define gcmkFATAL            gckOS_DebugFatal
+#elif gcdHAS_ELLIPSIS
+#   define gcmFATAL(...)
+#   define gcmkFATAL(...)
+#else
+    gcmINLINE static void
+    __dummy_fatal(
+        IN gctCONST_STRING Message,
+        ...
+        )
+    {
+    }
+#   define gcmFATAL             __dummy_fatal
+#   define gcmkFATAL            __dummy_fatal
+#endif
+
+#define gcmENUM2TEXT(e)         case e: return #e
+
+/*******************************************************************************
+**
+**  gcmTRACE
+**
+**      Print a message to the debugfer if the correct level has been set.  In
+**      retail mode this macro does nothing.
+**
+**  ARGUMENTS:
+**
+**      level   Level of message.
+**      message Message.
+**      ...     Optional arguments.
+*/
+#define gcvLEVEL_NONE           -1
+#define gcvLEVEL_ERROR          0
+#define gcvLEVEL_WARNING        1
+#define gcvLEVEL_INFO           2
+#define gcvLEVEL_VERBOSE        3
+
+void
+gckOS_DebugTrace(
+    IN gctUINT32 Level,
+    IN gctCONST_STRING Message,
+    ...
+    );
+
+void
+gckOS_DebugTraceN(
+    IN gctUINT32 Level,
+    IN gctUINT ArgumentSize,
+    IN gctCONST_STRING Message,
+    ...
+    );
+
+void
+gcoOS_DebugTrace(
+    IN gctUINT32 Level,
+    IN gctCONST_STRING Message,
+    ...
+    );
+
+#if gcmIS_DEBUG(gcdDEBUG_TRACE)
+#   define gcmTRACE             gcoOS_DebugTrace
+#   define gcmkTRACE            gckOS_DebugTrace
+#   define gcmkTRACE_N          gckOS_DebugTraceN
+#elif gcdHAS_ELLIPSIS
+#   define gcmTRACE(...)
+#   define gcmkTRACE(...)
+#   define gcmkTRACE_N(...)
+#else
+    gcmINLINE static void
+    __dummy_trace(
+        IN gctUINT32 Level,
+        IN gctCONST_STRING Message,
+        ...
+        )
+    {
+    }
+
+    gcmINLINE static void
+    __dummy_trace_n(
+        IN gctUINT32 Level,
+        IN gctUINT ArgumentSize,
+        IN gctCONST_STRING Message,
+        ...
+        )
+    {
+    }
+
+#   define gcmTRACE             __dummy_trace
+#   define gcmkTRACE            __dummy_trace
+#   define gcmkTRACE_N          __dummy_trace_n
+#endif
+
+/* Zones common for kernel and user. */
+#define gcvZONE_OS              (1 << 0)
+#define gcvZONE_HARDWARE        (1 << 1)
+#define gcvZONE_HEAP            (1 << 2)
+#define gcvZONE_SIGNAL          (1 << 27)
+
+/* Kernel zones. */
+#define gcvZONE_KERNEL          (1 << 3)
+#define gcvZONE_VIDMEM          (1 << 4)
+#define gcvZONE_COMMAND         (1 << 5)
+#define gcvZONE_DRIVER          (1 << 6)
+#define gcvZONE_CMODEL          (1 << 7)
+#define gcvZONE_MMU             (1 << 8)
+#define gcvZONE_EVENT           (1 << 9)
+#define gcvZONE_DEVICE          (1 << 10)
+#define gcvZONE_DATABASE        (1 << 11)
+#define gcvZONE_INTERRUPT       (1 << 12)
+#define gcvZONE_POWER           (1 << 13)
+#define gcvZONE_ALLOCATOR       (1 << 14)
+
+/* User zones. */
+#define gcvZONE_HAL             (1 << 3)
+#define gcvZONE_BUFFER          (1 << 4)
+#define gcvZONE_CONTEXT         (1 << 5)
+#define gcvZONE_SURFACE         (1 << 6)
+#define gcvZONE_INDEX           (1 << 7)
+#define gcvZONE_STREAM          (1 << 8)
+#define gcvZONE_TEXTURE         (1 << 9)
+#define gcvZONE_2D              (1 << 10)
+#define gcvZONE_3D              (1 << 11)
+#define gcvZONE_COMPILER        (1 << 12)
+#define gcvZONE_MEMORY          (1 << 13)
+#define gcvZONE_STATE           (1 << 14)
+#define gcvZONE_AUX             (1 << 15)
+#define gcvZONE_VERTEX          (1 << 16)
+#define gcvZONE_CL              (1 << 17)
+#define gcvZONE_COMPOSITION     (1 << 17)
+#define gcvZONE_VG              (1 << 18)
+#define gcvZONE_IMAGE           (1 << 19)
+#define gcvZONE_UTILITY         (1 << 20)
+#define gcvZONE_PARAMETERS      (1 << 21)
+#define gcvZONE_BUFOBJ          (1 << 22)
+#define gcvZONE_SHADER          (1 << 23)
+#define gcvZONE_STREAM_OUT      (1 << 24)
+
+/* API definitions. */
+#define gcvZONE_API_HAL         (1 << 28)
+#define gcvZONE_API_EGL         (2 << 28)
+#define gcvZONE_API_ES11        (3 << 28)
+#define gcvZONE_API_ES20        (4 << 28)
+#define gcvZONE_API_VG11        (5 << 28)
+#define gcvZONE_API_GL          (6 << 28)
+#define gcvZONE_API_DFB         (7 << 28)
+#define gcvZONE_API_GDI         ((gctUINT32)8 << 28)
+#define gcvZONE_API_D3D         ((gctUINT32)9 << 28)
+#define gcvZONE_API_ES30        ((gctUINT32)10 << 28)
+
+
+#define gcmZONE_GET_API(zone)   ((zone) >> 28)
+/*Set gcdZONE_MASE like 0x0 | gcvZONE_API_EGL
+will enable print EGL module debug info*/
+#define gcdZONE_MASK            0x0FFFFFFF
+
+/* Handy zones. */
+#define gcvZONE_NONE            0
+#define gcvZONE_ALL             0x0FFFFFFF
+
+/*Dump API depth set 1 for API, 2 for API and API behavior*/
+#define gcvDUMP_API_DEPTH       1
+
+/*******************************************************************************
+**
+**  gcmTRACE_ZONE
+**
+**      Print a message to the debugger if the correct level and zone has been
+**      set.  In retail mode this macro does nothing.
+**
+**  ARGUMENTS:
+**
+**      Level   Level of message.
+**      Zone    Zone of message.
+**      Message Message.
+**      ...     Optional arguments.
+*/
+
+void
+gckOS_DebugTraceZone(
+    IN gctUINT32 Level,
+    IN gctUINT32 Zone,
+    IN gctCONST_STRING Message,
+    ...
+    );
+
+void
+gckOS_DebugTraceZoneN(
+    IN gctUINT32 Level,
+    IN gctUINT32 Zone,
+    IN gctUINT ArgumentSize,
+    IN gctCONST_STRING Message,
+    ...
+    );
+
+void
+gcoOS_DebugTraceZone(
+    IN gctUINT32 Level,
+    IN gctUINT32 Zone,
+    IN gctCONST_STRING Message,
+    ...
+    );
+
+#if gcmIS_DEBUG(gcdDEBUG_TRACE)
+#   define gcmTRACE_ZONE            gcoOS_DebugTraceZone
+#   define gcmkTRACE_ZONE           gckOS_DebugTraceZone
+#   define gcmkTRACE_ZONE_N         gckOS_DebugTraceZoneN
+#elif gcdHAS_ELLIPSIS
+#   define gcmTRACE_ZONE(...)
+#   define gcmkTRACE_ZONE(...)
+#   define gcmkTRACE_ZONE_N(...)
+#else
+    gcmINLINE static void
+    __dummy_trace_zone(
+        IN gctUINT32 Level,
+        IN gctUINT32 Zone,
+        IN gctCONST_STRING Message,
+        ...
+        )
+    {
+    }
+
+    gcmINLINE static void
+    __dummy_trace_zone_n(
+        IN gctUINT32 Level,
+        IN gctUINT32 Zone,
+        IN gctUINT ArgumentSize,
+        IN gctCONST_STRING Message,
+        ...
+        )
+    {
+    }
+
+#   define gcmTRACE_ZONE            __dummy_trace_zone
+#   define gcmkTRACE_ZONE           __dummy_trace_zone
+#   define gcmkTRACE_ZONE_N         __dummy_trace_zone_n
+#endif
+
+/*******************************************************************************
+**
+**  gcmDEBUG_ONLY
+**
+**      Execute a statement or function only in DEBUG mode.
+**
+**  ARGUMENTS:
+**
+**      f       Statement or function to execute.
+*/
+#if gcmIS_DEBUG(gcdDEBUG_CODE)
+#   define gcmDEBUG_ONLY(f)         f
+#else
+#   define gcmDEBUG_ONLY(f)
+#endif
+
+/*******************************************************************************
+**
+**  gcmSTACK_PUSH
+**  gcmSTACK_POP
+**  gcmSTACK_DUMP
+**
+**      Push or pop a function with entry arguments on the trace stack.
+**
+**  ARGUMENTS:
+**
+**      Function    Name of function.
+**      Line        Line number.
+**      Text        Optional text.
+**      ...         Optional arguments for text.
+*/
+#if gcmIS_DEBUG(gcdDEBUG_STACK)
+    void gcoOS_StackPush(IN gctINT8_PTR Identity, IN gctCONST_STRING Function, IN gctINT Line, IN gctCONST_STRING Text, ...);
+    void gcoOS_StackPop(IN gctINT8_PTR Identity, IN gctCONST_STRING Function);
+    void gcoOS_StackDump(void);
+    void gcoOS_StackRemove(IN gctHANDLE Thread);
+
+#   define gcmSTACK_PUSH            gcoOS_StackPush
+#   define gcmSTACK_POP             gcoOS_StackPop
+#   define gcmSTACK_DUMP            gcoOS_StackDump
+#   define gcmSTACK_REMOVE          gcoOS_StackRemove
+#elif gcdHAS_ELLIPSIS
+#   define gcmSTACK_PUSH(...)       do { } while (0)
+#   define gcmSTACK_POP(...)        do { } while (0)
+#   define gcmSTACK_DUMP()          do { } while (0)
+#   define gcmSTACK_REMOVE(...)     do { } while (0)
+#else
+    gcmINLINE static void
+    __dummy_stack_push(
+        IN gctCONST_STRING Function,
+        IN gctINT Line,
+        IN gctCONST_STRING Text, ...
+        )
+    {
+    }
+#   define gcmSTACK_PUSH            __dummy_stack_push
+#   define gcmSTACK_POP(a,b)        do { } while (0)
+#   define gcmSTACK_DUMP()          do { } while (0)
+#   define gcmSTACK_REMOVE(a)       do { } while (0)
+#endif
+
+/******************************************************************************\
+******************************** Binary Trace **********************************
+\******************************************************************************/
+typedef struct _gcsBINARY_TRACE_MESSAGE * gcsBINARY_TRACE_MESSAGE_PTR;
+typedef struct _gcsBINARY_TRACE_MESSAGE
+{
+    gctUINT32   signature;
+    gctUINT32   pid;
+    gctUINT32   tid;
+    gctUINT32   line;
+    gctUINT32   numArguments;
+    gctUINT8    payload;
+}
+gcsBINARY_TRACE_MESSAGE;
+
+#define gcdBINARY_TRACE_MESSAGE_SIZE 240
+
+#if gcdBINARY_TRACE
+    void
+    gcoOS_BinaryTrace(
+        IN gctCONST_STRING Function,
+        IN gctINT Line,
+        IN gctCONST_STRING Text OPTIONAL,
+        ...
+        );
+
+    void
+    gckOS_BinaryTrace(
+        IN gctCONST_STRING Function,
+        IN gctINT Line,
+        IN gctCONST_STRING Text OPTIONAL,
+        ...
+        );
+
+#   define gcmBINARY_TRACE          gcoOS_BinaryTrace
+#   define gcmkBINARY_TRACE         gckOS_BinaryTrace
+#elif gcdHAS_ELLIPSIS
+#   define gcmBINARY_TRACE(Function, Line, Text, ...)
+#   define gcmkBINARY_TRACE(Function, Line, Text, ...)
+#else
+    gcmINLINE static void
+    __dummy_binary_trace(
+        IN gctCONST_STRING Function,
+        IN gctINT Line,
+        IN gctCONST_STRING Text,
+        )
+    {
+    }
+
+#   define gcmBINARY_TRACE          __dummy_binary_trace
+#   define gcmkBINARY_TRACE         __dummy_binary_trace
+#endif
+
+/******************************************************************************\
+******************************** Logging Macros ********************************
+\******************************************************************************/
+
+#define gcdHEADER_LEVEL             gcvLEVEL_VERBOSE
+
+#ifndef gcdEMPTY_HEADER_FOOTER
+#define gcdEMPTY_HEADER_FOOTER 0
+#endif
+
+#if gcdENABLE_PROFILING
+void
+gcoOS_ProfileDB(
+    IN gctCONST_STRING Function,
+    IN OUT gctBOOL_PTR Initialized
+    );
+
+#define gcmHEADER() \
+    gctINT8 __user__ = 1; \
+    static gctBOOL __profile__initialized__ = gcvFALSE; \
+    gcmSTACK_PUSH(&__user__, __FUNCTION__, __LINE__, gcvNULL, gcvNULL); \
+    gcoOS_ProfileDB(__FUNCTION__, &__profile__initialized__)
+#define gcmHEADER_ARG(...) \
+    gctINT8 __user__ = 1; \
+    static gctBOOL __profile__initialized__ = gcvFALSE; \
+    gcmSTACK_PUSH(&__user__, __FUNCTION__, __LINE__, Text, __VA_ARGS__); \
+    gcoOS_ProfileDB(__FUNCTION__, &__profile__initialized__)
+#define gcmFOOTER() \
+    gcmSTACK_POP(&__user__, __FUNCTION__); \
+    gcoOS_ProfileDB(__FUNCTION__, gcvNULL)
+#define gcmFOOTER_NO() \
+    gcmSTACK_POP(&__user__, __FUNCTION__); \
+    gcoOS_ProfileDB(__FUNCTION__, gcvNULL)
+#define gcmFOOTER_ARG(...) \
+    gcmSTACK_POP(&__user__, __FUNCTION__); \
+    gcoOS_ProfileDB(__FUNCTION__, gcvNULL)
+#define gcmFOOTER_KILL() \
+    gcmSTACK_POP(&__user__, __FUNCTION__); \
+    gcoOS_ProfileDB(gcvNULL, gcvNULL)
+
+#else /* gcdENABLE_PROFILING */
+
+#if gcdEMPTY_HEADER_FOOTER
+#   define gcmHEADER()
+#elif gcdHAS_ELLIPSIS
+#define gcmHEADER() \
+    gctINT8 __user__ = 1; \
+    gctINT8_PTR __user_ptr__ = &__user__; \
+    gcmSTACK_PUSH(__user_ptr__, __FUNCTION__, __LINE__, gcvNULL, gcvNULL); \
+    gcmBINARY_TRACE(__FUNCTION__, __LINE__, gcvNULL, gcvNULL); \
+    gcmTRACE_ZONE(gcdHEADER_LEVEL, _GC_OBJ_ZONE, \
+                  "++%s(%d)", __FUNCTION__, __LINE__)
+#else
+    gcmINLINE static void
+    __dummy_header(void)
+    {
+    }
+#   define gcmHEADER                   __dummy_header
+#endif
+
+#if gcdHAS_ELLIPSIS
+#if gcdEMPTY_HEADER_FOOTER
+#   define gcmHEADER_ARG(Text, ...)
+#else
+#   define gcmHEADER_ARG(Text, ...) \
+        gctINT8 __user__ = 1; \
+        gctINT8_PTR __user_ptr__ = &__user__; \
+        gcmSTACK_PUSH(__user_ptr__, __FUNCTION__, __LINE__, Text, __VA_ARGS__); \
+        gcmBINARY_TRACE(__FUNCTION__, __LINE__, Text, __VA_ARGS__); \
+        gcmTRACE_ZONE(gcdHEADER_LEVEL, _GC_OBJ_ZONE, \
+                      "++%s(%d): " Text, __FUNCTION__, __LINE__, __VA_ARGS__)
+#endif
+#else
+    gcmINLINE static void
+    __dummy_header_arg(
+        IN gctCONST_STRING Text,
+        ...
+        )
+    {
+    }
+#   define gcmHEADER_ARG                __dummy_header_arg
+#endif
+
+#if gcdEMPTY_HEADER_FOOTER
+#   define gcmFOOTER()
+#elif gcdHAS_ELLIPSIS
+#   define gcmFOOTER() \
+    gcmSTACK_POP(__user_ptr__, __FUNCTION__); \
+    gcmBINARY_TRACE(__FUNCTION__, __LINE__, gcvNULL, gcvNULL); \
+    gcmTRACE_ZONE(gcdHEADER_LEVEL, _GC_OBJ_ZONE, \
+                  "--%s(%d): status=%d(%s)", \
+                  __FUNCTION__, __LINE__, \
+                  status, gcoOS_DebugStatus2Name(status)); \
+    *__user_ptr__ -= 1
+#else
+    gcmINLINE static void
+    __dummy_footer(void)
+    {
+    }
+#   define gcmFOOTER                    __dummy_footer
+#endif
+
+#if gcdEMPTY_HEADER_FOOTER
+#   define gcmFOOTER_NO()
+#elif gcdHAS_ELLIPSIS
+#define gcmFOOTER_NO() \
+    gcmSTACK_POP(__user_ptr__, __FUNCTION__); \
+    gcmBINARY_TRACE(__FUNCTION__, __LINE__, gcvNULL, gcvNULL); \
+    gcmTRACE_ZONE(gcdHEADER_LEVEL, _GC_OBJ_ZONE, \
+                  "--%s(%d)", __FUNCTION__, __LINE__); \
+    *__user_ptr__ -= 1
+#else
+    gcmINLINE static void
+    __dummy_footer_no(void)
+    {
+    }
+#   define gcmFOOTER_NO                 __dummy_footer_no
+#endif
+
+#if gcdEMPTY_HEADER_FOOTER
+#   define gcmFOOTER_KILL()
+#elif gcdHAS_ELLIPSIS
+#define gcmFOOTER_KILL() \
+    gcmSTACK_POP(__user_ptr__, __FUNCTION__); \
+    gcmBINARY_TRACE(__FUNCTION__, __LINE__, gcvNULL, gcvNULL); \
+    gcmTRACE_ZONE(gcdHEADER_LEVEL, _GC_OBJ_ZONE, \
+                  "--%s(%d)", __FUNCTION__, __LINE__); \
+    *__user_ptr__ -= 1
+#else
+    gcmINLINE static void
+    __dummy_footer_kill(void)
+    {
+    }
+#   define gcmFOOTER_KILL               __dummy_footer_kill
+#endif
+
+#if gcdHAS_ELLIPSIS
+#if gcdEMPTY_HEADER_FOOTER
+#   define gcmFOOTER_ARG(Text, ...)
+#else
+#   define gcmFOOTER_ARG(Text, ...) \
+        gcmSTACK_POP(__user_ptr__, __FUNCTION__); \
+        gcmBINARY_TRACE(__FUNCTION__, __LINE__, Text, __VA_ARGS__); \
+        gcmTRACE_ZONE(gcdHEADER_LEVEL, _GC_OBJ_ZONE, \
+                      "--%s(%d): " Text, __FUNCTION__, __LINE__, __VA_ARGS__); \
+        *__user_ptr__ -= 1
+#endif
+#else
+    gcmINLINE static void
+    __dummy_footer_arg(
+        IN gctCONST_STRING Text,
+        ...
+        )
+    {
+    }
+#   define gcmFOOTER_ARG                __dummy_footer_arg
+#endif
+
+#endif /* gcdENABLE_PROFILING */
+
+#if gcdHAS_ELLIPSIS
+#define gcmkHEADER() \
+    gctINT8 __kernel__ = 1; \
+    gctINT8_PTR __kernel_ptr__ = &__kernel__; \
+    gcmkBINARY_TRACE(__FUNCTION__, __LINE__, gcvNULL, gcvNULL); \
+    gcmkTRACE_ZONE(gcdHEADER_LEVEL, _GC_OBJ_ZONE, \
+                   "++%s(%d)", __FUNCTION__, __LINE__)
+#else
+    gcmINLINE static void
+    __dummy_kheader(void)
+    {
+    }
+#   define gcmkHEADER                  __dummy_kheader
+#endif
+
+#if gcdHAS_ELLIPSIS
+#   define gcmkHEADER_ARG(Text, ...) \
+        gctINT8 __kernel__ = 1; \
+        gctINT8_PTR __kernel_ptr__ = &__kernel__; \
+        gcmkBINARY_TRACE(__FUNCTION__, __LINE__, Text, __VA_ARGS__); \
+        gcmkTRACE_ZONE(gcdHEADER_LEVEL, _GC_OBJ_ZONE, \
+                       "++%s(%d): " Text, __FUNCTION__, __LINE__, __VA_ARGS__)
+#else
+    gcmINLINE static void
+    __dummy_kheader_arg(
+        IN gctCONST_STRING Text,
+        ...
+        )
+    {
+    }
+#   define gcmkHEADER_ARG               __dummy_kheader_arg
+#endif
+
+#if gcdHAS_ELLIPSIS
+#define gcmkFOOTER() \
+    gcmkBINARY_TRACE(__FUNCTION__, __LINE__, gcvNULL, status); \
+    gcmkTRACE_ZONE(gcdHEADER_LEVEL, _GC_OBJ_ZONE, \
+                   "--%s(%d): status=%d(%s)", \
+                   __FUNCTION__, __LINE__, status, gckOS_DebugStatus2Name(status)); \
+    *__kernel_ptr__ -= 1
+#else
+    gcmINLINE static void
+    __dummy_kfooter(void)
+    {
+    }
+#   define gcmkFOOTER                   __dummy_kfooter
+#endif
+
+#if gcdHAS_ELLIPSIS
+#define gcmkFOOTER_NO() \
+    gcmkBINARY_TRACE(__FUNCTION__, __LINE__, gcvNULL, gcvNULL); \
+    gcmkTRACE_ZONE(gcdHEADER_LEVEL, _GC_OBJ_ZONE, \
+                   "--%s(%d)", __FUNCTION__, __LINE__); \
+    *__kernel_ptr__ -= 1
+#else
+    gcmINLINE static void
+    __dummy_kfooter_no(void)
+    {
+    }
+#   define gcmkFOOTER_NO                __dummy_kfooter_no
+#endif
+
+#if gcdHAS_ELLIPSIS
+#   define gcmkFOOTER_ARG(Text, ...) \
+        gcmkBINARY_TRACE(__FUNCTION__, __LINE__, Text, __VA_ARGS__); \
+        gcmkTRACE_ZONE(gcdHEADER_LEVEL, _GC_OBJ_ZONE, \
+                       "--%s(%d): " Text, \
+                       __FUNCTION__, __LINE__, __VA_ARGS__); \
+        *__kernel_ptr__ -= 1
+#else
+    gcmINLINE static void
+    __dummy_kfooter_arg(
+        IN gctCONST_STRING Text,
+        ...
+        )
+    {
+    }
+#   define gcmkFOOTER_ARG               __dummy_kfooter_arg
+#endif
+
+#define gcmOPT_VALUE(ptr)               (((ptr) == gcvNULL) ? 0 : *(ptr))
+#define gcmOPT_VALUE_INDEX(ptr, index)  (((ptr) == gcvNULL) ? 0 : ptr[index])
+#define gcmOPT_POINTER(ptr)             (((ptr) == gcvNULL) ? gcvNULL : *(ptr))
+#define gcmOPT_STRING(ptr)              (((ptr) == gcvNULL) ? "(nil)" : (ptr))
+
+void
+gckOS_Print(
+    IN gctCONST_STRING Message,
+    ...
+    );
+
+void
+gckOS_PrintN(
+    IN gctUINT ArgumentSize,
+    IN gctCONST_STRING Message,
+    ...
+    );
+
+void
+gckOS_CopyPrint(
+    IN gctCONST_STRING Message,
+    ...
+    );
+
+void
+gcoOS_Print(
+    IN gctCONST_STRING Message,
+    ...
+    );
+
+#define gcmPRINT                gcoOS_Print
+#define gcmkPRINT               gckOS_Print
+#define gcmkPRINT_N             gckOS_PrintN
+
+#if gcdPRINT_VERSION
+#   define gcmPRINT_VERSION()       do { \
+                                        _gcmPRINT_VERSION(gcm); \
+                                        gcmSTACK_DUMP(); \
+                                    } while (0)
+#   define gcmkPRINT_VERSION()      _gcmPRINT_VERSION(gcmk)
+#   define _gcmPRINT_VERSION(prefix) \
+        prefix##TRACE(gcvLEVEL_ERROR, \
+                      "Vivante HAL version %d.%d.%d build %d", \
+                      gcvVERSION_MAJOR, gcvVERSION_MINOR, \
+                      gcvVERSION_PATCH, gcvVERSION_BUILD)
+#else
+#   define gcmPRINT_VERSION()       do { gcmSTACK_DUMP(); } while (gcvFALSE)
+#   define gcmkPRINT_VERSION()      do { } while (gcvFALSE)
+#endif
+
+typedef enum _gceDUMP_BUFFER
+{
+    gceDUMP_BUFFER_CONTEXT,
+    gceDUMP_BUFFER_USER,
+    gceDUMP_BUFFER_KERNEL,
+    gceDUMP_BUFFER_LINK,
+    gceDUMP_BUFFER_WAITLINK,
+    gceDUMP_BUFFER_FROM_USER,
+}
+gceDUMP_BUFFER;
+
+void
+gckOS_DumpBuffer(
+    IN gckOS Os,
+    IN gctPOINTER Buffer,
+    IN gctUINT Size,
+    IN gceDUMP_BUFFER Type,
+    IN gctBOOL CopyMessage
+    );
+
+#define gcmkDUMPBUFFER          gckOS_DumpBuffer
+
+#if gcdDUMP_COMMAND
+#   define gcmkDUMPCOMMAND(Os, Buffer, Size, Type, CopyMessage) \
+        gcmkDUMPBUFFER(Os, Buffer, Size, Type, CopyMessage)
+#else
+#   define gcmkDUMPCOMMAND(Os, Buffer, Size, Type, CopyMessage)
+#endif
+
+#if gcmIS_DEBUG(gcdDEBUG_CODE)
+
+void
+gckOS_DebugFlush(
+    gctCONST_STRING CallerName,
+    gctUINT LineNumber,
+    gctUINT32 DmaAddress
+    );
+
+#   define gcmkDEBUGFLUSH(DmaAddress) \
+        gckOS_DebugFlush(__FUNCTION__, __LINE__, DmaAddress)
+#else
+#   define gcmkDEBUGFLUSH(DmaAddress)
+#endif
+
+/*******************************************************************************
+**
+**  gcmDUMP_FRAMERATE
+**
+**      Print average frame rate
+**
+*/
+#if gcdDUMP_FRAMERATE
+    gceSTATUS
+    gcfDumpFrameRate(
+        void
+    );
+#   define gcmDUMP_FRAMERATE        gcfDumpFrameRate
+#elif gcdHAS_ELLIPSIS
+#   define gcmDUMP_FRAMERATE(...)
+#else
+    gcmINLINE static void
+    __dummy_dump_frame_rate(
+        void
+        )
+    {
+    }
+#   define gcmDUMP_FRAMERATE        __dummy_dump_frame_rate
+#endif
+
+
+/*******************************************************************************
+**
+**  gcmDUMP
+**
+**      Print a dump message.
+**
+**  ARGUMENTS:
+**
+**      gctSTRING   Message.
+**
+**      ...         Optional arguments.
+*/
+#if gcdDUMP
+    gceSTATUS
+    gcfDump(
+        IN gcoOS Os,
+        IN gctCONST_STRING String,
+        ...
+        );
+#  define gcmDUMP               gcfDump
+#elif gcdHAS_ELLIPSIS
+#  define gcmDUMP(...)
+#else
+    gcmINLINE static void
+    __dummy_dump(
+        IN gcoOS Os,
+        IN gctCONST_STRING Message,
+        ...
+        )
+    {
+    }
+#  define gcmDUMP               __dummy_dump
+#endif
+
+/*******************************************************************************
+**
+**  gcmDUMP_DATA
+**
+**      Add data to the dump.
+**
+**  ARGUMENTS:
+**
+**      gctSTRING Tag
+**          Tag for dump.
+**
+**      gctPOINTER Logical
+**          Logical address of buffer.
+**
+**      gctSIZE_T Bytes
+**          Number of bytes.
+*/
+
+#if gcdDUMP || gcdDUMP_COMMAND
+    gceSTATUS
+    gcfDumpData(
+        IN gcoOS Os,
+        IN gctSTRING Tag,
+        IN gctPOINTER Logical,
+        IN gctSIZE_T Bytes
+        );
+#  define gcmDUMP_DATA          gcfDumpData
+#elif gcdHAS_ELLIPSIS
+#  define gcmDUMP_DATA(...)
+#else
+    gcmINLINE static void
+    __dummy_dump_data(
+        IN gcoOS Os,
+        IN gctSTRING Tag,
+        IN gctPOINTER Logical,
+        IN gctSIZE_T Bytes
+        )
+    {
+    }
+#  define gcmDUMP_DATA          __dummy_dump_data
+#endif
+
+/*******************************************************************************
+**
+**  gcmDUMP_BUFFER
+**
+**      Print a buffer to the dump.
+**
+**  ARGUMENTS:
+**
+**      gctSTRING Tag
+**          Tag for dump.
+**
+**      gctUINT32 Physical
+**          Physical address of buffer.
+**
+**      gctPOINTER Logical
+**          Logical address of buffer.
+**
+**      gctUINT32 Offset
+**          Offset into buffer.
+**
+**      gctSIZE_T Bytes
+**          Number of bytes.
+*/
+
+#if gcdDUMP || gcdDUMP_COMMAND
+gceSTATUS
+gcfDumpBuffer(
+    IN gcoOS Os,
+    IN gctSTRING Tag,
+    IN gctUINT32 Physical,
+    IN gctPOINTER Logical,
+    IN gctUINT32 Offset,
+    IN gctSIZE_T Bytes
+    );
+#   define gcmDUMP_BUFFER       gcfDumpBuffer
+#elif gcdHAS_ELLIPSIS
+#   define gcmDUMP_BUFFER(...)
+#else
+    gcmINLINE static void
+    __dummy_dump_buffer(
+        IN gcoOS Os,
+        IN gctSTRING Tag,
+        IN gctUINT32 Physical,
+        IN gctPOINTER Logical,
+        IN gctUINT32 Offset,
+        IN gctSIZE_T Bytes
+        )
+    {
+    }
+#   define gcmDUMP_BUFFER       __dummy_dump_buffer
+#endif
+
+/*******************************************************************************
+**
+**  gcmDUMP_API
+**
+**      Print a dump message for a high level API prefixed by the function name.
+**
+**  ARGUMENTS:
+**
+**      gctSTRING   Message.
+**
+**      ...         Optional arguments.
+*/
+gceSTATUS gcfDumpApi(IN gctCONST_STRING String, ...);
+#if gcdDUMP_API
+#   define gcmDUMP_API           gcfDumpApi
+#elif gcdHAS_ELLIPSIS
+#   define gcmDUMP_API(...)
+#else
+    gcmINLINE static void
+    __dummy_dump_api(
+        IN gctCONST_STRING Message,
+        ...
+        )
+    {
+    }
+#  define gcmDUMP_API           __dummy_dump_api
+#endif
+
+/*******************************************************************************
+**
+**  gcmDUMP_API_ARRAY
+**
+**      Print an array of data.
+**
+**  ARGUMENTS:
+**
+**      gctUINT32_PTR   Pointer to array.
+**      gctUINT32       Size.
+*/
+gceSTATUS gcfDumpArray(IN gctCONST_POINTER Data, IN gctUINT32 Size);
+#if gcdDUMP_API
+#   define gcmDUMP_API_ARRAY        gcfDumpArray
+#elif gcdHAS_ELLIPSIS
+#   define gcmDUMP_API_ARRAY(...)
+#else
+    gcmINLINE static void
+    __dummy_dump_api_array(
+        IN gctCONST_POINTER Data,
+        IN gctUINT32 Size
+        )
+    {
+    }
+#   define gcmDUMP_API_ARRAY        __dummy_dump_api_array
+#endif
+
+/*******************************************************************************
+**
+**  gcmDUMP_API_ARRAY_TOKEN
+**
+**      Print an array of data terminated by a token.
+**
+**  ARGUMENTS:
+**
+**      gctUINT32_PTR   Pointer to array.
+**      gctUINT32       Termination.
+*/
+gceSTATUS gcfDumpArrayToken(IN gctCONST_POINTER Data, IN gctUINT32 Termination);
+#if gcdDUMP_API
+#   define gcmDUMP_API_ARRAY_TOKEN  gcfDumpArrayToken
+#elif gcdHAS_ELLIPSIS
+#   define gcmDUMP_API_ARRAY_TOKEN(...)
+#else
+    gcmINLINE static void
+    __dummy_dump_api_array_token(
+        IN gctCONST_POINTER Data,
+        IN gctUINT32 Termination
+        )
+    {
+    }
+#   define gcmDUMP_API_ARRAY_TOKEN  __dummy_dump_api_array_token
+#endif
+
+/*******************************************************************************
+**
+**  gcmDUMP_API_DATA
+**
+**      Print an array of bytes.
+**
+**  ARGUMENTS:
+**
+**      gctCONST_POINTER    Pointer to array.
+**      gctSIZE_T           Size.
+*/
+gceSTATUS gcfDumpApiData(IN gctCONST_POINTER Data, IN gctSIZE_T Size);
+#if gcdDUMP_API
+#   define gcmDUMP_API_DATA         gcfDumpApiData
+#elif gcdHAS_ELLIPSIS
+#   define gcmDUMP_API_DATA(...)
+#else
+    gcmINLINE static void
+    __dummy_dump_api_data(
+        IN gctCONST_POINTER Data,
+        IN gctSIZE_T Size
+        )
+    {
+    }
+#   define gcmDUMP_API_DATA         __dummy_dump_api_data
+#endif
+
+/*******************************************************************************
+** gcmDUMP_2D_COMMAND
+**
+**      Print the 2D command buffer.
+**
+**  ARGUMENTS:
+**
+**      gctUINT32_PTR       Pointer to the command buffer.
+**      gctUINT32           Command buffer size.
+*/
+gceSTATUS gcfDump2DCommand(IN gctUINT32_PTR Command, IN gctUINT32 Size);
+#if gcdDUMP_2D
+#   define gcmDUMP_2D_COMMAND       gcfDump2DCommand
+#elif gcdHAS_ELLIPSIS
+#   define gcmDUMP_2D_COMMAND(...)
+#else
+    gcmINLINE static void
+    __dummy_dump_2d_command(
+        IN gctUINT32_PTR Command,
+        IN gctUINT32 Size
+        )
+    {
+    }
+#   define gcmDUMP_2D_COMMAND       __dummy_dump_2d_command
+#endif
+
+/*******************************************************************************
+** gcmDUMP_2D_SURFACE
+**
+**      Print the 2D surface memory.
+**
+**  ARGUMENTS:
+**
+**      gctBOOL             Src.
+**      gctUINT32           Address.
+*/
+gceSTATUS gcfDump2DSurface(IN gctBOOL Src, IN gctUINT32 Address);
+#if gcdDUMP_2D
+#   define gcmDUMP_2D_SURFACE       gcfDump2DSurface
+#elif gcdHAS_ELLIPSIS
+#   define gcmDUMP_2D_SURFACE(...)
+#else
+    gcmINLINE static void
+    __dummy_dump_2d_surface(
+        IN gctBOOL Src,
+        IN gctUINT32 Address
+        )
+    {
+    }
+#   define gcmDUMP_2D_SURFACE       __dummy_dump_2d_surface
+#endif
+
+/*******************************************************************************
+** gcmDUMP_ADD_MEMORY_INFO
+**
+**      Record the memory info.
+**
+**  ARGUMENTS:
+**
+**      gctUINT32           Address.
+**      gctSIZE_T           Size.
+*/
+gceSTATUS gcfAddMemoryInfo(IN gctUINT32 GPUAddress, IN gctPOINTER Logical, IN gctUINT32 Physical, IN gctUINT32 Size);
+#if gcdDUMP_2D
+#   define gcmDUMP_ADD_MEMORY_INFO  gcfAddMemoryInfo
+#elif gcdHAS_ELLIPSIS
+#   define gcmDUMP_ADD_MEMORY_INFO(...)
+#else
+    gcmINLINE static void
+    __dummy_dump_add_memory_info(
+        IN gctUINT32 GPUAddress,
+        IN gctPOINTER Logical,
+        IN gctUINT32 Physical,
+        IN gctUINT32 Size
+        )
+    {
+    }
+#   define gcmDUMP_ADD_MEMORY_INFO  __dummy_dump_add_memory_info
+#endif
+
+/*******************************************************************************
+** gcmDUMP_DEL_MEMORY_INFO
+**
+**      Record the memory info.
+**
+**  ARGUMENTS:
+**
+**      gctUINT32           Address.
+*/
+gceSTATUS gcfDelMemoryInfo(IN gctUINT32 Address);
+#if gcdDUMP_2D
+#   define gcmDUMP_DEL_MEMORY_INFO  gcfDelMemoryInfo
+#elif gcdHAS_ELLIPSIS
+#   define gcmDUMP_DEL_MEMORY_INFO(...)
+#else
+    gcmINLINE static void
+    __dummy_dump_del_memory_info(
+        IN gctUINT32 Address
+        )
+    {
+    }
+#   define gcmDUMP_DEL_MEMORY_INFO  __dummy_dump_del_memory_info
+#endif
+
+#if gcdDUMP_2D
+extern gctPOINTER dumpMemInfoListMutex;
+extern gctBOOL    dump2DFlag;
+#endif
+
+/*******************************************************************************
+**
+**  gcmTRACE_RELEASE
+**
+**      Print a message to the shader debugger.
+**
+**  ARGUMENTS:
+**
+**      message Message.
+**      ...     Optional arguments.
+*/
+
+#define gcmTRACE_RELEASE                gcoOS_DebugShaderTrace
+
+void
+gcoOS_DebugShaderTrace(
+    IN gctCONST_STRING Message,
+    ...
+    );
+
+void
+gcoOS_SetDebugShaderFiles(
+    IN gctCONST_STRING VSFileName,
+    IN gctCONST_STRING FSFileName
+    );
+
+void
+gcoOS_SetDebugShaderFileType(
+    IN gctUINT32 ShaderType
+    );
+
+void
+gcoOS_EnableDebugBuffer(
+    IN gctBOOL Enable
+    );
+
+/*******************************************************************************
+**
+**  gcmBREAK
+**
+**      Break into the debugger.  In retail mode this macro does nothing.
+**
+**  ARGUMENTS:
+**
+**      None.
+*/
+
+void
+gcoOS_DebugBreak(
+    void
+    );
+
+void
+gckOS_DebugBreak(
+    void
+    );
+
+#if gcmIS_DEBUG(gcdDEBUG_BREAK)
+#   define gcmBREAK             gcoOS_DebugBreak
+#   define gcmkBREAK            gckOS_DebugBreak
+#else
+#   define gcmBREAK()
+#   define gcmkBREAK()
+#endif
+
+/*******************************************************************************
+**
+**  gcmASSERT
+**
+**      Evaluate an expression and break into the debugger if the expression
+**      evaluates to false.  In retail mode this macro does nothing.
+**
+**  ARGUMENTS:
+**
+**      exp     Expression to evaluate.
+*/
+#if gcmIS_DEBUG(gcdDEBUG_ASSERT)
+#   define _gcmASSERT(prefix, exp) \
+        do \
+        { \
+            if (!(exp)) \
+            { \
+                prefix##TRACE(gcvLEVEL_ERROR, \
+                              #prefix "ASSERT at %s(%d)", \
+                              __FUNCTION__, __LINE__); \
+                prefix##TRACE(gcvLEVEL_ERROR, \
+                              "(%s)", #exp); \
+                prefix##BREAK(); \
+            } \
+        } \
+        while (gcvFALSE)
+#   define gcmASSERT(exp)           _gcmASSERT(gcm, exp)
+#   define gcmkASSERT(exp)          _gcmASSERT(gcmk, exp)
+#else
+#   define gcmASSERT(exp)
+#   define gcmkASSERT(exp)
+#endif
+
+/*******************************************************************************
+**
+**  gcmVERIFY
+**
+**      Verify if an expression returns true.  If the expression does not
+**      evaluates to true, an assertion will happen in debug mode.
+**
+**  ARGUMENTS:
+**
+**      exp     Expression to evaluate.
+*/
+#if gcmIS_DEBUG(gcdDEBUG_ASSERT)
+#   define gcmVERIFY(exp)           gcmASSERT(exp)
+#   define gcmkVERIFY(exp)          gcmkASSERT(exp)
+#else
+#   define gcmVERIFY(exp)           exp
+#   define gcmkVERIFY(exp)          exp
+#endif
+
+/*******************************************************************************
+**
+**  gcmVERIFY_OK
+**
+**      Verify a fucntion returns gcvSTATUS_OK.  If the function does not return
+**      gcvSTATUS_OK, an assertion will happen in debug mode.
+**
+**  ARGUMENTS:
+**
+**      func    Function to evaluate.
+*/
+
+void
+gcoOS_Verify(
+    IN gceSTATUS status
+    );
+
+void
+gckOS_Verify(
+    IN gceSTATUS status
+    );
+
+#if gcmIS_DEBUG(gcdDEBUG_ASSERT)
+#   define gcmVERIFY_OK(func) \
+        do \
+        { \
+            gceSTATUS verifyStatus = func; \
+            gcoOS_Verify(verifyStatus); \
+            if (verifyStatus != gcvSTATUS_OK) \
+            { \
+                gcmTRACE( \
+                    gcvLEVEL_ERROR, \
+                    "gcmVERIFY_OK(%d): function returned %d", \
+                    __LINE__, verifyStatus \
+                    ); \
+            } \
+            gcmASSERT(verifyStatus == gcvSTATUS_OK); \
+        } \
+        while (gcvFALSE)
+#   define gcmkVERIFY_OK(func) \
+        do \
+        { \
+            gceSTATUS verifyStatus = func; \
+            if (verifyStatus != gcvSTATUS_OK) \
+            { \
+                gcmkTRACE( \
+                    gcvLEVEL_ERROR, \
+                    "gcmkVERIFY_OK(%d): function returned %d", \
+                    __LINE__, verifyStatus \
+                    ); \
+            } \
+            gckOS_Verify(verifyStatus); \
+            gcmkASSERT(verifyStatus == gcvSTATUS_OK); \
+        } \
+        while (gcvFALSE)
+#else
+#   define gcmVERIFY_OK(func)       func
+#   define gcmkVERIFY_OK(func)      func
+#endif
+
+gctCONST_STRING
+gcoOS_DebugStatus2Name(
+    gceSTATUS status
+    );
+
+gctCONST_STRING
+gckOS_DebugStatus2Name(
+    gceSTATUS status
+    );
+
+/*******************************************************************************
+**
+**  gcmERR_BREAK
+**
+**      Executes a break statement on error.
+**
+**  ASSUMPTIONS:
+**
+**      'status' variable of gceSTATUS type must be defined.
+**
+**  ARGUMENTS:
+**
+**      func    Function to evaluate.
+*/
+#define _gcmERR_BREAK(prefix, func) \
+    status = func; \
+    if (gcmIS_ERROR(status)) \
+    { \
+        prefix##PRINT_VERSION(); \
+        prefix##TRACE(gcvLEVEL_ERROR, \
+            #prefix "ERR_BREAK: status=%d(%s) @ %s(%d)", \
+            status, gcoOS_DebugStatus2Name(status), __FUNCTION__, __LINE__); \
+        break; \
+    } \
+    do { } while (gcvFALSE)
+#define _gcmkERR_BREAK(prefix, func) \
+    status = func; \
+    if (gcmIS_ERROR(status)) \
+    { \
+        prefix##PRINT_VERSION(); \
+        prefix##TRACE(gcvLEVEL_ERROR, \
+            #prefix "ERR_BREAK: status=%d(%s) @ %s(%d)", \
+            status, gckOS_DebugStatus2Name(status), __FUNCTION__, __LINE__); \
+        break; \
+    } \
+    do { } while (gcvFALSE)
+#define gcmERR_BREAK(func)          _gcmERR_BREAK(gcm, func)
+#define gcmkERR_BREAK(func)         _gcmkERR_BREAK(gcmk, func)
+
+/*******************************************************************************
+**
+**  gcmERR_RETURN
+**
+**      Executes a return on error.
+**
+**  ASSUMPTIONS:
+**
+**      'status' variable of gceSTATUS type must be defined.
+**
+**  ARGUMENTS:
+**
+**      func    Function to evaluate.
+*/
+#define _gcmERR_RETURN(prefix, func) \
+    status = func; \
+    if (gcmIS_ERROR(status)) \
+    { \
+        prefix##PRINT_VERSION(); \
+        prefix##TRACE(gcvLEVEL_ERROR, \
+            #prefix "ERR_RETURN: status=%d(%s) @ %s(%d)", \
+            status, gcoOS_DebugStatus2Name(status), __FUNCTION__, __LINE__); \
+        prefix##FOOTER(); \
+        return status; \
+    } \
+    do { } while (gcvFALSE)
+#define _gcmkERR_RETURN(prefix, func) \
+    status = func; \
+    if (gcmIS_ERROR(status)) \
+    { \
+        prefix##PRINT_VERSION(); \
+        prefix##TRACE(gcvLEVEL_ERROR, \
+            #prefix "ERR_RETURN: status=%d(%s) @ %s(%d)", \
+            status, gckOS_DebugStatus2Name(status), __FUNCTION__, __LINE__); \
+        prefix##FOOTER(); \
+        return status; \
+    } \
+    do { } while (gcvFALSE)
+#define gcmERR_RETURN(func)         _gcmERR_RETURN(gcm, func)
+#define gcmkERR_RETURN(func)        _gcmkERR_RETURN(gcmk, func)
+
+
+/*******************************************************************************
+**
+**  gcmONERROR
+**
+**      Jump to the error handler in case there is an error.
+**
+**  ASSUMPTIONS:
+**
+**      'status' variable of gceSTATUS type must be defined.
+**
+**  ARGUMENTS:
+**
+**      func    Function to evaluate.
+*/
+#define _gcmONERROR(prefix, func) \
+    do \
+    { \
+        status = func; \
+        if (gcmIS_ERROR(status)) \
+        { \
+            prefix##PRINT_VERSION(); \
+            prefix##TRACE(gcvLEVEL_ERROR, \
+                #prefix "ONERROR: status=%d(%s) @ %s(%d)", \
+                status, gcoOS_DebugStatus2Name(status), __FUNCTION__, __LINE__); \
+            goto OnError; \
+        } \
+    } \
+    while (gcvFALSE)
+#define _gcmkONERROR(prefix, func) \
+    do \
+    { \
+        status = func; \
+        if (gcmIS_ERROR(status)) \
+        { \
+            prefix##PRINT_VERSION(); \
+            prefix##TRACE(gcvLEVEL_ERROR, \
+                #prefix "ONERROR: status=%d(%s) @ %s(%d)", \
+                status, gckOS_DebugStatus2Name(status), __FUNCTION__, __LINE__); \
+            goto OnError; \
+        } \
+    } \
+    while (gcvFALSE)
+#define gcmONERROR(func)            _gcmONERROR(gcm, func)
+#define gcmkONERROR(func)           _gcmkONERROR(gcmk, func)
+
+/*******************************************************************************
+**
+**  gcmkSAFECASTSIZET
+**
+**      Check wether value of a gctSIZE_T varible beyond the capability
+**      of 32bits GPU hardware.
+**
+**  ASSUMPTIONS:
+**
+**
+**
+**  ARGUMENTS:
+**
+**      x   A gctUINT32 variable
+**      y   A gctSIZE_T variable
+*/
+#define gcmkSAFECASTSIZET(x, y) \
+    do \
+    { \
+        gctUINT32 tmp = (gctUINT32)(y); \
+        if (gcmSIZEOF(gctSIZE_T) > gcmSIZEOF(gctUINT32)) \
+        { \
+            gcmkASSERT(tmp <= gcvMAXUINT32); \
+            } \
+        (x) = tmp; \
+    } \
+    while (gcvFALSE)
+
+#define gcmSAFECASTSIZET(x, y) \
+    do \
+    { \
+        gctUINT32 tmp = (gctUINT32)(y); \
+        if (gcmSIZEOF(gctSIZE_T) > gcmSIZEOF(gctUINT32)) \
+        { \
+            gcmASSERT(tmp <= gcvMAXUINT32); \
+            } \
+        (x) = tmp; \
+    } \
+    while (gcvFALSE)
+
+/*******************************************************************************
+**
+**  gcmkSAFECASTPHYSADDRT
+**
+**      Check whether value of a gctPHYS_ADDR_T variable beyond the capability
+**      of 32bits GPU hardware.
+**
+**  ASSUMPTIONS:
+**
+**
+**
+**  ARGUMENTS:
+**
+**      x   A gctUINT32 variable
+**      y   A gctSIZE_T variable
+*/
+#define gcmkSAFECASTPHYSADDRT(x, y) \
+    do \
+    { \
+    gctUINT32 tmp = (gctUINT32)(y); \
+    if (gcmSIZEOF(gctPHYS_ADDR_T) > gcmSIZEOF(gctUINT32)) \
+    { \
+    gcmkASSERT(tmp <= gcvMAXUINT32); \
+    } \
+    (x) = tmp; \
+    } \
+    while (gcvFALSE)
+
+/*******************************************************************************
+**
+**  gcmVERIFY_LOCK
+**
+**      Verifies whether the surface is locked.
+**
+**  ARGUMENTS:
+**
+**      surfaceInfo Pointer to the surface iniformational structure.
+*/
+#define gcmVERIFY_LOCK(surfaceInfo) \
+    if (!surfaceInfo->node.valid) \
+    { \
+        gcmONERROR(gcvSTATUS_MEMORY_UNLOCKED); \
+    } \
+
+/*******************************************************************************
+**
+**  gcmVERIFY_NODE_LOCK
+**
+**      Verifies whether the surface node is locked.
+**
+**  ARGUMENTS:
+**
+**      surfaceInfo Pointer to the surface iniformational structure.
+*/
+#define gcmVERIFY_NODE_LOCK(surfaceNode) \
+    if (!(surfaceNode)->valid) \
+    { \
+        status = gcvSTATUS_MEMORY_UNLOCKED; \
+        break; \
+    } \
+    do { } while (gcvFALSE)
+
+/*******************************************************************************
+**
+**  gcmBADOBJECT_BREAK
+**
+**      Executes a break statement on bad object.
+**
+**  ARGUMENTS:
+**
+**      obj     Object to test.
+**      t       Expected type of the object.
+*/
+#define gcmBADOBJECT_BREAK(obj, t) \
+    if ((obj == gcvNULL) \
+    ||  (((gcsOBJECT *)(obj))->type != t) \
+    ) \
+    { \
+        status = gcvSTATUS_INVALID_OBJECT; \
+        break; \
+    } \
+    do { } while (gcvFALSE)
+
+/*******************************************************************************
+**
+**  gcmCHECK_STATUS
+**
+**      Executes a break statement on error.
+**
+**  ASSUMPTIONS:
+**
+**      'status' variable of gceSTATUS type must be defined.
+**
+**  ARGUMENTS:
+**
+**      func    Function to evaluate.
+*/
+#define _gcmCHECK_STATUS(prefix, func) \
+    do \
+    { \
+        last = func; \
+        if (gcmIS_ERROR(last)) \
+        { \
+            prefix##TRACE(gcvLEVEL_ERROR, \
+                #prefix "CHECK_STATUS: status=%d(%s) @ %s(%d)", \
+                last, gcoOS_DebugStatus2Name(last), __FUNCTION__, __LINE__); \
+            status = last; \
+        } \
+    } \
+    while (gcvFALSE)
+#define _gcmkCHECK_STATUS(prefix, func) \
+    do \
+    { \
+        last = func; \
+        if (gcmIS_ERROR(last)) \
+        { \
+            prefix##TRACE(gcvLEVEL_ERROR, \
+                #prefix "CHECK_STATUS: status=%d(%s) @ %s(%d)", \
+                last, gckOS_DebugStatus2Name(last), __FUNCTION__, __LINE__); \
+            status = last; \
+        } \
+    } \
+    while (gcvFALSE)
+#define gcmCHECK_STATUS(func)       _gcmCHECK_STATUS(gcm, func)
+#define gcmkCHECK_STATUS(func)      _gcmkCHECK_STATUS(gcmk, func)
+
+/*******************************************************************************
+**
+**  gcmVERIFY_ARGUMENT
+**
+**      Assert if an argument does not apply to the specified expression.  If
+**      the argument evaluates to false, gcvSTATUS_INVALID_ARGUMENT will be
+**      returned from the current function.  In retail mode this macro does
+**      nothing.
+**
+**  ARGUMENTS:
+**
+**      arg     Argument to evaluate.
+*/
+#   define _gcmVERIFY_ARGUMENT(prefix, arg) \
+       do \
+       { \
+           if (!(arg)) \
+           { \
+               prefix##TRACE(gcvLEVEL_ERROR, #prefix "VERIFY_ARGUMENT failed:"); \
+               prefix##ASSERT(arg); \
+               prefix##FOOTER_ARG("status=%d", gcvSTATUS_INVALID_ARGUMENT); \
+               return gcvSTATUS_INVALID_ARGUMENT; \
+           } \
+       } \
+       while (gcvFALSE)
+#   define gcmVERIFY_ARGUMENT(arg)     _gcmVERIFY_ARGUMENT(gcm, arg)
+#   define gcmkVERIFY_ARGUMENT(arg)    _gcmVERIFY_ARGUMENT(gcmk, arg)
+
+/*******************************************************************************
+**
+**  gcmDEBUG_VERIFY_ARGUMENT
+**
+**      Works just like gcmVERIFY_ARGUMENT, but is only valid in debug mode.
+**      Use this to verify arguments inside non-public API functions.
+*/
+#if gcdDEBUG
+#   define gcmDEBUG_VERIFY_ARGUMENT(arg)    _gcmVERIFY_ARGUMENT(gcm, arg)
+#   define gcmkDEBUG_VERIFY_ARGUMENT(arg)   _gcmkVERIFY_ARGUMENT(gcm, arg)
+#else
+#   define gcmDEBUG_VERIFY_ARGUMENT(arg)
+#   define gcmkDEBUG_VERIFY_ARGUMENT(arg)
+#endif
+
+/*******************************************************************************
+**
+**  gcmVERIFY_ARGUMENT_RETURN
+**
+**      Assert if an argument does not apply to the specified expression.  If
+**      the argument evaluates to false, gcvSTATUS_INVALID_ARGUMENT will be
+**      returned from the current function.  In retail mode this macro does
+**      nothing.
+**
+**  ARGUMENTS:
+**
+**      arg     Argument to evaluate.
+*/
+#   define _gcmVERIFY_ARGUMENT_RETURN(prefix, arg, value) \
+       do \
+       { \
+           if (!(arg)) \
+           { \
+               prefix##TRACE(gcvLEVEL_ERROR, \
+                             #prefix "gcmVERIFY_ARGUMENT_RETURN failed:"); \
+               prefix##ASSERT(arg); \
+               prefix##FOOTER_ARG("value=%d", value); \
+               return value; \
+           } \
+       } \
+       while (gcvFALSE)
+#   define gcmVERIFY_ARGUMENT_RETURN(arg, value) \
+                _gcmVERIFY_ARGUMENT_RETURN(gcm, arg, value)
+#   define gcmkVERIFY_ARGUMENT_RETURN(arg, value) \
+                _gcmVERIFY_ARGUMENT_RETURN(gcmk, arg, value)
+
+#define MAX_LOOP_COUNT 0x7FFFFFFF
+
+/******************************************************************************\
+****************************** User Debug Option ******************************
+\******************************************************************************/
+
+/* User option. */
+typedef enum _gceDEBUG_MSG
+{
+    gcvDEBUG_MSG_NONE,
+    gcvDEBUG_MSG_ERROR,
+    gcvDEBUG_MSG_WARNING
+}
+gceDEBUG_MSG;
+
+typedef struct _gcsUSER_DEBUG_OPTION
+{
+    gceDEBUG_MSG        debugMsg;
+}
+gcsUSER_DEBUG_OPTION;
+
+gcsUSER_DEBUG_OPTION *
+gcGetUserDebugOption(
+    void
+    );
+
+#if defined(ANDROID)
+struct _gcoOS_SymbolsList
+{
+    const char * symList[10];
+};
+#endif
+
+#if gcdHAS_ELLIPSIS
+#define gcmUSER_DEBUG_MSG(level, ...) \
+    do \
+    { \
+        if (level <= gcGetUserDebugOption()->debugMsg) \
+        { \
+            gcoOS_Print(__VA_ARGS__); \
+        } \
+    } while (gcvFALSE)
+
+#define gcmUSER_DEBUG_ERROR_MSG(...)   gcmUSER_DEBUG_MSG(gcvDEBUG_MSG_ERROR, "Error: " __VA_ARGS__)
+#define gcmUSER_DEBUG_WARNING_MSG(...) gcmUSER_DEBUG_MSG(gcvDEBUG_MSG_WARNING, "Warring: " __VA_ARGS__)
+#else
+#define gcmUSER_DEBUG_MSG
+#define gcmUSER_DEBUG_ERROR_MSG
+#define gcmUSER_DEBUG_WARNING_MSG
+#endif
+
+/*******************************************************************************
+**
+**  A set of macros to aid state loading.
+**
+**  ARGUMENTS:
+**
+**      CommandBuffer   Pointer to a gcoCMDBUF object.
+**      StateDelta      Pointer to a gcsSTATE_DELTA state delta structure.
+**      Memory          Destination memory pointer of gctUINT32_PTR type.
+**      PartOfContext   Whether or not the state is a part of the context.
+**      FixedPoint      Whether or not the state is of the fixed point format.
+**      Count           Number of consecutive states to be loaded.
+**      Address         State address.
+**      Data            Data to be set to the state.
+*/
+
+/*----------------------------------------------------------------------------*/
+
+#if gcmIS_DEBUG(gcdDEBUG_CODE)
+
+#   define gcmSTORELOADSTATE(CommandBuffer, Memory, Address, Count) \
+        CommandBuffer->lastLoadStatePtr     = gcmPTR_TO_UINT64(Memory); \
+        CommandBuffer->lastLoadStateAddress = Address; \
+        CommandBuffer->lastLoadStateCount   = Count
+
+#   define gcmVERIFYLOADSTATE(CommandBuffer, Memory, Address) \
+        gcmASSERT( \
+            (gctUINT) (Memory  - gcmUINT64_TO_TYPE(CommandBuffer->lastLoadStatePtr, gctUINT32_PTR) - 1) \
+            == \
+            (gctUINT) (Address - CommandBuffer->lastLoadStateAddress) \
+            ); \
+        \
+        gcmASSERT(CommandBuffer->lastLoadStateCount > 0); \
+        \
+        CommandBuffer->lastLoadStateCount -= 1
+
+#   define gcmVERIFYLOADSTATEDONE(CommandBuffer) \
+        gcmASSERT(CommandBuffer->lastLoadStateCount == 0);
+
+#   define gcmDEFINELOADSTATEBASE() \
+        gctUINT32_PTR LoadStateBase;
+
+#   define gcmSETLOADSTATEBASE(CommandBuffer, OutSide) \
+        if (OutSide) \
+        {\
+            LoadStateBase = (gctUINT32_PTR)*OutSide; \
+        }\
+        else\
+        {\
+            LoadStateBase = (gctUINT_PTR)CommandBuffer->buffer;\
+        }
+
+
+#   define gcmVERIFYLOADSTATEALIGNED(CommandBuffer, Memory) \
+        gcmASSERT(((Memory - LoadStateBase) & 1) == 0);
+
+#   define gcmUNSETLOADSTATEBASE() \
+        LoadStateBase = LoadStateBase;
+
+#else
+
+#   define gcmSTORELOADSTATE(CommandBuffer, Memory, Address, Count)
+#   define gcmVERIFYLOADSTATE(CommandBuffer, Memory, Address)
+#   define gcmVERIFYLOADSTATEDONE(CommandBuffer)
+
+#   define gcmDEFINELOADSTATEBASE()
+#   define gcmSETLOADSTATEBASE(CommandBuffer, OutSide)
+#   define gcmVERIFYLOADSTATEALIGNED(CommandBuffer, Memory)
+#   define gcmUNSETLOADSTATEBASE()
+
+#endif
+
+#if gcdSECURE_USER
+
+#   define gcmDEFINESECUREUSER() \
+        gctUINT         __secure_user_offset__; \
+        gctUINT32_PTR   __secure_user_hintArray__;
+
+#   define gcmBEGINSECUREUSER() \
+        __secure_user_offset__ = reserve->lastOffset; \
+        \
+        __secure_user_hintArray__ = gcmUINT64_TO_PTR(reserve->hintArrayTail)
+
+#   define gcmENDSECUREUSER() \
+        reserve->hintArrayTail = gcmPTR_TO_UINT64(__secure_user_hintArray__)
+
+#   define gcmSKIPSECUREUSER() \
+        __secure_user_offset__ += gcmSIZEOF(gctUINT32)
+
+#   define gcmUPDATESECUREUSER() \
+        *__secure_user_hintArray__ = __secure_user_offset__; \
+        \
+        __secure_user_offset__    += gcmSIZEOF(gctUINT32); \
+        __secure_user_hintArray__ += 1
+
+#else
+
+#   define gcmDEFINESECUREUSER()
+#   define gcmBEGINSECUREUSER()
+#   define gcmENDSECUREUSER()
+#   define gcmSKIPSECUREUSER()
+#   define gcmUPDATESECUREUSER()
+
+#endif
+
+/*----------------------------------------------------------------------------*/
+
+#if gcdDUMP
+#   define gcmDUMPSTATEDATA(StateDelta, FixedPoint, Address, Data) \
+        if (FixedPoint) \
+        { \
+            gcmDUMP(gcvNULL, "#[state.x 0x%04X 0x%08X]", \
+                Address, Data \
+                ); \
+        } \
+        else \
+        { \
+            gcmDUMP(gcvNULL, "#[state 0x%04X 0x%08X]", \
+                Address, Data \
+                ); \
+        }
+#else
+#   define gcmDUMPSTATEDATA(StateDelta, FixedPoint, Address, Data)
+#endif
+
+#define gcmDEFINESTATEBUFFER(CommandBuffer, StateDelta, Memory, ReserveSize) \
+    gcmDEFINESECUREUSER() \
+    gctSIZE_T ReserveSize; \
+    gcoCMDBUF CommandBuffer; \
+    gctUINT32_PTR Memory; \
+    gcsSTATE_DELTA_PTR StateDelta
+
+#define gcmBEGINSTATEBUFFER(Hardware, CommandBuffer, StateDelta, Memory, ReserveSize) \
+{ \
+    gcmONERROR(gcoBUFFER_Reserve( \
+        Hardware->buffer, ReserveSize, gcvTRUE, gcvCOMMAND_3D, &CommandBuffer \
+        )); \
+    \
+    Memory = (gctUINT32_PTR) gcmUINT64_TO_PTR(CommandBuffer->lastReserve); \
+    \
+    StateDelta = Hardware->delta; \
+    \
+    gcmBEGINSECUREUSER(); \
+}
+
+#define gcmENDSTATEBUFFER(Hardware, CommandBuffer, Memory, ReserveSize) \
+{ \
+    gcmENDSECUREUSER(); \
+    \
+    gcmASSERT( \
+        gcmUINT64_TO_TYPE(CommandBuffer->lastReserve, gctUINT8_PTR) + ReserveSize \
+        == \
+         (gctUINT8_PTR) Memory \
+        ); \
+}
+
+/*----------------------------------------------------------------------------*/
+
+#define gcmBEGINSTATEBATCH(CommandBuffer, Memory, FixedPoint, Address, Count) \
+{ \
+    gcmASSERT(((Memory - gcmUINT64_TO_TYPE(CommandBuffer->lastReserve, gctUINT32_PTR)) & 1) == 0); \
+    gcmASSERT((gctUINT32)Count <= 1024); \
+    \
+    gcmVERIFYLOADSTATEDONE(CommandBuffer); \
+    \
+    gcmSTORELOADSTATE(CommandBuffer, Memory, Address, Count); \
+    \
+    *Memory++ \
+        = gcmSETFIELDVALUE(0, AQ_COMMAND_LOAD_STATE_COMMAND, OPCODE,  LOAD_STATE) \
+        | gcmSETFIELD     (0, AQ_COMMAND_LOAD_STATE_COMMAND, FLOAT,   FixedPoint) \
+        | gcmSETFIELD     (0, AQ_COMMAND_LOAD_STATE_COMMAND, COUNT,   Count) \
+        | gcmSETFIELD     (0, AQ_COMMAND_LOAD_STATE_COMMAND, ADDRESS, Address); \
+    \
+    gcmSKIPSECUREUSER(); \
+}
+
+#define gcmENDSTATEBATCH(CommandBuffer, Memory) \
+{ \
+    gcmVERIFYLOADSTATEDONE(CommandBuffer); \
+    \
+    gcmASSERT(((Memory - gcmUINT64_TO_TYPE(CommandBuffer->lastReserve, gctUINT32_PTR)) & 1) == 0); \
+}
+
+/*----------------------------------------------------------------------------*/
+
+#define gcmSETSTATEDATA(StateDelta, CommandBuffer, Memory, FixedPoint, \
+                        Address, Data) \
+{ \
+    gctUINT32 __temp_data32__; \
+    \
+    gcmVERIFYLOADSTATE(CommandBuffer, Memory, Address); \
+    \
+    gcmSAFECASTSIZET(__temp_data32__, Data); \
+    \
+    *Memory++ = __temp_data32__; \
+    \
+    gcoHARDWARE_UpdateDelta( \
+        StateDelta, Address, 0, __temp_data32__ \
+        ); \
+    \
+    gcmDUMPSTATEDATA(StateDelta, FixedPoint, Address, __temp_data32__); \
+    \
+    gcmUPDATESECUREUSER(); \
+}
+
+#define gcmSETSTATEDATAWITHMASK(StateDelta, CommandBuffer, Memory, FixedPoint, \
+                        Address, Mask, Data) \
+{ \
+    gctUINT32 __temp_data32__; \
+    \
+    gcmVERIFYLOADSTATE(CommandBuffer, Memory, Address); \
+    \
+    __temp_data32__ = Data; \
+    \
+    *Memory++ = __temp_data32__; \
+    \
+    gcoHARDWARE_UpdateDelta( \
+        StateDelta, Address, Mask, __temp_data32__ \
+        ); \
+    \
+    gcmDUMPSTATEDATA(StateDelta, FixedPoint, Address, __temp_data32__); \
+    \
+    gcmUPDATESECUREUSER(); \
+}
+
+
+#define gcmSETCTRLSTATE(StateDelta, CommandBuffer, Memory, Address, Data) \
+{ \
+    gctUINT32 __temp_data32__; \
+    \
+    gcmVERIFYLOADSTATE(CommandBuffer, Memory, Address); \
+    \
+    __temp_data32__ = Data; \
+    \
+    *Memory++ = __temp_data32__; \
+    \
+    gcmDUMPSTATEDATA(StateDelta, gcvFALSE, Address, __temp_data32__); \
+    \
+    gcmSKIPSECUREUSER(); \
+}
+
+#define gcmSETFILLER(CommandBuffer, Memory) \
+{ \
+    gcmVERIFYLOADSTATEDONE(CommandBuffer); \
+    \
+    Memory += 1; \
+    \
+    gcmSKIPSECUREUSER(); \
+}
+
+/*----------------------------------------------------------------------------*/
+
+#define gcmSETSINGLESTATE(StateDelta, CommandBuffer, Memory, FixedPoint, \
+                          Address, Data) \
+{ \
+    gcmBEGINSTATEBATCH(CommandBuffer, Memory, FixedPoint, Address, 1); \
+    gcmSETSTATEDATA(StateDelta, CommandBuffer, Memory, FixedPoint, \
+                    Address, Data); \
+    gcmENDSTATEBATCH(CommandBuffer, Memory); \
+}
+
+#define gcmSETSINGLESTATEWITHMASK(StateDelta, CommandBuffer, Memory, FixedPoint, \
+                          Address, Mask, Data) \
+{ \
+    gcmBEGINSTATEBATCH(CommandBuffer, Memory, FixedPoint, Address, 1); \
+    gcmSETSTATEDATAWITHMASK(StateDelta, CommandBuffer, Memory, FixedPoint, \
+                    Address, Mask, Data); \
+    gcmENDSTATEBATCH(CommandBuffer, Memory); \
+}
+
+
+#define gcmSETSINGLECTRLSTATE(StateDelta, CommandBuffer, Memory, FixedPoint, \
+                              Address, Data) \
+{ \
+    gcmBEGINSTATEBATCH(CommandBuffer, Memory, FixedPoint, Address, 1); \
+    gcmSETCTRLSTATE(StateDelta, CommandBuffer, Memory, Address, Data); \
+    gcmENDSTATEBATCH(CommandBuffer, Memory); \
+}
+
+
+
+#define gcmSETSEMASTALLPIPE(StateDelta, CommandBuffer, Memory, Data) \
+{ \
+    gcmSETSINGLESTATE(StateDelta, CommandBuffer, Memory, gcvFALSE, AQSemaphoreRegAddrs, Data); \
+    \
+    *Memory++ = gcmSETFIELDVALUE(0, STALL_COMMAND, OPCODE, STALL); \
+    \
+    *Memory++ = Data; \
+    \
+    gcmDUMP(gcvNULL, "#[stall 0x%08X 0x%08X]", \
+        gcmSETFIELDVALUE(0, AQ_SEMAPHORE, SOURCE, FRONT_END), \
+        gcmSETFIELDVALUE(0, AQ_SEMAPHORE, DESTINATION, PIXEL_ENGINE)); \
+    \
+    gcmSKIPSECUREUSER(); \
+}
+
+/*******************************************************************************
+**
+**  gcmSETSTARTDECOMMAND
+**
+**      Form a START_DE command.
+**
+**  ARGUMENTS:
+**
+**      Memory          Destination memory pointer of gctUINT32_PTR type.
+**      Count           Number of the rectangles.
+*/
+
+#define gcmSETSTARTDECOMMAND(Memory, Count) \
+{ \
+    *Memory++ \
+        = gcmSETFIELDVALUE(0, AQ_COMMAND_START_DE_COMMAND, OPCODE,     START_DE) \
+        | gcmSETFIELD     (0, AQ_COMMAND_START_DE_COMMAND, COUNT,      Count) \
+        | gcmSETFIELD     (0, AQ_COMMAND_START_DE_COMMAND, DATA_COUNT, 0); \
+    \
+    *Memory++ = 0xDEADDEED; \
+}
+
+/*****************************************
+** Temp command buffer macro
+*/
+#define gcmDEFINESTATEBUFFER_NEW(CommandBuffer, StateDelta, Memory) \
+    gcmDEFINESECUREUSER() \
+    gcmDEFINELOADSTATEBASE() \
+    gcsTEMPCMDBUF CommandBuffer = gcvNULL; \
+    gctUINT32_PTR Memory; \
+    gcsSTATE_DELTA_PTR StateDelta
+
+
+#define gcmBEGINSTATEBUFFER_NEW(Hardware, CommandBuffer, StateDelta, Memory, OutSide) \
+{ \
+    if (OutSide) \
+    {\
+        Memory = (gctUINT32_PTR)*OutSide; \
+    }\
+    else \
+    {\
+        gcmONERROR(gcoBUFFER_StartTEMPCMDBUF( \
+            Hardware->buffer, &CommandBuffer \
+            ));\
+        \
+        Memory = (gctUINT32_PTR)(CommandBuffer->buffer); \
+        \
+    }\
+    StateDelta = Hardware->delta; \
+    \
+    gcmBEGINSECUREUSER(); \
+    gcmSETLOADSTATEBASE(CommandBuffer,OutSide);\
+}
+
+#define gcmENDSTATEBUFFER_NEW(Hardware, CommandBuffer, Memory, OutSide) \
+{ \
+    gcmENDSECUREUSER(); \
+    \
+    if (OutSide) \
+    {\
+        *OutSide = Memory; \
+    }\
+    else \
+    {\
+        CommandBuffer->currentByteSize = (gctUINT32)((gctUINT8_PTR)Memory -  \
+                                         (gctUINT8_PTR)CommandBuffer->buffer); \
+        \
+        gcmONERROR(gcoBUFFER_EndTEMPCMDBUF(Hardware->buffer));\
+    }\
+    gcmUNSETLOADSTATEBASE()\
+}
+
+/*----------------------------------------------------------------------------*/
+
+#define gcmBEGINSTATEBATCH_NEW(CommandBuffer, Memory, FixedPoint, Address, Count) \
+{ \
+    gcmVERIFYLOADSTATEALIGNED(CommandBuffer,Memory);\
+    gcmASSERT((gctUINT32)Count <= 1024); \
+    \
+    *Memory++ \
+        = gcmSETFIELDVALUE(0, AQ_COMMAND_LOAD_STATE_COMMAND, OPCODE,  LOAD_STATE) \
+        | gcmSETFIELD     (0, AQ_COMMAND_LOAD_STATE_COMMAND, FLOAT,   FixedPoint) \
+        | gcmSETFIELD     (0, AQ_COMMAND_LOAD_STATE_COMMAND, COUNT,   Count) \
+        | gcmSETFIELD     (0, AQ_COMMAND_LOAD_STATE_COMMAND, ADDRESS, Address); \
+    \
+    gcmSKIPSECUREUSER(); \
+}
+
+#define gcmENDSTATEBATCH_NEW(CommandBuffer, Memory) \
+    gcmVERIFYLOADSTATEALIGNED(CommandBuffer,Memory);
+
+/*----------------------------------------------------------------------------*/
+
+#define gcmSETSTATEDATA_NEW(StateDelta, CommandBuffer, Memory, FixedPoint, \
+                        Address, Data) \
+{ \
+    gctUINT32 __temp_data32__; \
+    \
+    __temp_data32__ = Data; \
+    \
+    *Memory++ = __temp_data32__; \
+    \
+    gcoHARDWARE_UpdateDelta( \
+        StateDelta, Address, 0, __temp_data32__ \
+        ); \
+    \
+    gcmDUMPSTATEDATA(StateDelta, FixedPoint, Address, __temp_data32__); \
+    \
+    gcmUPDATESECUREUSER(); \
+}
+
+#define gcmSETSTATEDATAWITHMASK_NEW(StateDelta, CommandBuffer, Memory, FixedPoint, \
+                                Address, Mask, Data) \
+{ \
+    gctUINT32 __temp_data32__; \
+    \
+    __temp_data32__ = Data; \
+    \
+    *Memory++ = __temp_data32__; \
+    \
+    gcoHARDWARE_UpdateDelta( \
+        StateDelta, Address, Mask, __temp_data32__ \
+        ); \
+    \
+    gcmDUMPSTATEDATA(StateDelta, FixedPoint, Address, __temp_data32__); \
+    \
+    gcmUPDATESECUREUSER(); \
+}
+
+
+#define gcmSETCTRLSTATE_NEW(StateDelta, CommandBuffer, Memory, Address, Data) \
+{ \
+    gctUINT32 __temp_data32__; \
+    \
+    __temp_data32__ = Data; \
+    \
+    *Memory++ = __temp_data32__; \
+    \
+    gcmDUMPSTATEDATA(StateDelta, gcvFALSE, Address, __temp_data32__); \
+    \
+    gcmSKIPSECUREUSER(); \
+}
+
+#define gcmSETFILLER_NEW(CommandBuffer, Memory) \
+{ \
+    Memory += 1; \
+    \
+    gcmSKIPSECUREUSER(); \
+}
+
+/*----------------------------------------------------------------------------*/
+
+#define gcmSETSINGLESTATE_NEW(StateDelta, CommandBuffer, Memory, FixedPoint, \
+                              Address, Data) \
+{ \
+    gcmBEGINSTATEBATCH_NEW(CommandBuffer, Memory, FixedPoint, Address, 1); \
+    gcmSETSTATEDATA_NEW(StateDelta, CommandBuffer, Memory, FixedPoint, \
+                    Address, Data); \
+    gcmENDSTATEBATCH_NEW(CommandBuffer, Memory); \
+}
+
+#define gcmSETSINGLESTATEWITHMASK_NEW(StateDelta, CommandBuffer, Memory, FixedPoint, \
+                                      Address, Mask, Data) \
+{ \
+    gcmBEGINSTATEBATCH_NEW(CommandBuffer, Memory, FixedPoint, Address, 1); \
+    gcmSETSTATEDATAWITHMASK_NEW(StateDelta, CommandBuffer, Memory, FixedPoint, \
+                    Address, Mask, Data); \
+    gcmENDSTATEBATCH_NEW(CommandBuffer, Memory); \
+}
+
+
+#define gcmSETSINGLECTRLSTATE_NEW(StateDelta, CommandBuffer, Memory, FixedPoint, \
+                              Address, Data) \
+{ \
+    gcmBEGINSTATEBATCH_NEW(CommandBuffer, Memory, FixedPoint, Address, 1); \
+    gcmSETCTRLSTATE_NEW(StateDelta, CommandBuffer, Memory, Address, Data); \
+    gcmENDSTATEBATCH_NEW(CommandBuffer, Memory); \
+}
+
+
+
+#define gcmSETSEMASTALLPIPE_NEW(StateDelta, CommandBuffer, Memory, Data) \
+{ \
+    gcmSETSINGLESTATE_NEW(StateDelta, CommandBuffer, Memory, gcvFALSE, AQSemaphoreRegAddrs, Data); \
+    \
+    *Memory++ = gcmSETFIELDVALUE(0, STALL_COMMAND, OPCODE, STALL); \
+    \
+    *Memory++ = Data; \
+    \
+    gcmDUMP(gcvNULL, "#[stall 0x%08X 0x%08X]", \
+        gcmSETFIELDVALUE(0, AQ_SEMAPHORE, SOURCE, FRONT_END), \
+        gcmSETFIELDVALUE(0, AQ_SEMAPHORE, DESTINATION, PIXEL_ENGINE)); \
+    \
+    gcmSKIPSECUREUSER(); \
+}
+
+#define gcmSETSTARTDECOMMAND_NEW(CommandBuffer, Memory, Count) \
+{ \
+    *Memory++ \
+        = gcmSETFIELDVALUE(0, AQ_COMMAND_START_DE_COMMAND, OPCODE,     START_DE) \
+        | gcmSETFIELD     (0, AQ_COMMAND_START_DE_COMMAND, COUNT,      Count) \
+        | gcmSETFIELD     (0, AQ_COMMAND_START_DE_COMMAND, DATA_COUNT, 0); \
+    \
+    *Memory++ = 0xDEADDEED; \
+    \
+}
+
+#define gcmSETSTATEDATA_NEW_FAST(StateDelta, CommandBuffer, Memory, FixedPoint, \
+                        Address, Data) \
+{ \
+    gctUINT32 __temp_data32__; \
+    \
+    __temp_data32__ = Data; \
+    \
+    *Memory++ = __temp_data32__; \
+    \
+    gcmDUMPSTATEDATA(StateDelta, FixedPoint, Address, __temp_data32__); \
+    \
+    gcmUPDATESECUREUSER(); \
+}
+
+#define gcmSETSTATEDATAWITHMASK_NEW_FAST(StateDelta, CommandBuffer, Memory, FixedPoint, \
+                                Address, Mask, Data) \
+{ \
+    gctUINT32 __temp_data32__; \
+    \
+    __temp_data32__ = Data; \
+    \
+    *Memory++ = __temp_data32__; \
+    \
+    gcmDUMPSTATEDATA(StateDelta, FixedPoint, Address, __temp_data32__); \
+    \
+    gcmUPDATESECUREUSER(); \
+}
+
+#define gcmSETSINGLESTATE_NEW_FAST(StateDelta, CommandBuffer, Memory, FixedPoint, \
+                              Address, Data) \
+{ \
+    gcmBEGINSTATEBATCH_NEW(CommandBuffer, Memory, FixedPoint, Address, 1); \
+    gcmSETSTATEDATA_NEW_FAST(StateDelta, CommandBuffer, Memory, FixedPoint, \
+                    Address, Data); \
+    gcmENDSTATEBATCH_NEW(CommandBuffer, Memory); \
+}
+
+#define gcmSETSINGLESTATEWITHMASK_NEW_FAST(StateDelta, CommandBuffer, Memory, FixedPoint, \
+                                      Address, Mask, Data) \
+{ \
+    gcmBEGINSTATEBATCH_NEW(CommandBuffer, Memory, FixedPoint, Address, 1); \
+    gcmSETSTATEDATAWITHMASK_NEW_FAST(StateDelta, CommandBuffer, Memory, FixedPoint, \
+                    Address, Mask, Data); \
+    gcmENDSTATEBATCH_NEW(CommandBuffer, Memory); \
+}
+
+#define gcmSETSTATEDATA_FAST(StateDelta, CommandBuffer, Memory, FixedPoint, \
+                        Address, Data) \
+{ \
+    gctUINT32 __temp_data32__; \
+    \
+    gcmVERIFYLOADSTATE(CommandBuffer, Memory, Address); \
+    \
+    gcmSAFECASTSIZET(__temp_data32__, Data); \
+    \
+    *Memory++ = __temp_data32__; \
+    \
+    gcmDUMPSTATEDATA(StateDelta, FixedPoint, Address, __temp_data32__); \
+    \
+    gcmUPDATESECUREUSER(); \
+}
+
+#define gcmSETSTATEDATAWITHMASK_FAST(StateDelta, CommandBuffer, Memory, FixedPoint, \
+                        Address, Mask, Data) \
+{ \
+    gctUINT32 __temp_data32__; \
+    \
+    gcmVERIFYLOADSTATE(CommandBuffer, Memory, Address); \
+    \
+    __temp_data32__ = Data; \
+    \
+    *Memory++ = __temp_data32__; \
+    \
+    gcmDUMPSTATEDATA(StateDelta, FixedPoint, Address, __temp_data32__); \
+    \
+    gcmUPDATESECUREUSER(); \
+}
+
+#define gcmSETSINGLESTATE_FAST(StateDelta, CommandBuffer, Memory, FixedPoint, \
+                          Address, Data) \
+{ \
+    gcmBEGINSTATEBATCH(CommandBuffer, Memory, FixedPoint, Address, 1); \
+    gcmSETSTATEDATA_FAST(StateDelta, CommandBuffer, Memory, FixedPoint, \
+                    Address, Data); \
+    gcmENDSTATEBATCH(CommandBuffer, Memory); \
+}
+
+#define gcmSETSINGLESTATEWITHMASK_FAST(StateDelta, CommandBuffer, Memory, FixedPoint, \
+                          Address, Mask, Data) \
+{ \
+    gcmBEGINSTATEBATCH(CommandBuffer, Memory, FixedPoint, Address, 1); \
+    gcmSETSTATEDATAWITHMASK_FAST(StateDelta, CommandBuffer, Memory, FixedPoint, \
+                    Address, Mask, Data); \
+    gcmENDSTATEBATCH(CommandBuffer, Memory); \
+}
+
+#define gcmDEFINESTATEBUFFER_NEW_FAST(CommandBuffer, Memory) \
+    gcmDEFINESECUREUSER() \
+    gcmDEFINELOADSTATEBASE() \
+    gcsTEMPCMDBUF CommandBuffer = gcvNULL; \
+    gctUINT32_PTR Memory;
+
+#define gcmDEFINESTATEBUFFER_FAST(CommandBuffer, Memory, ReserveSize) \
+    gcmDEFINESECUREUSER() \
+    gctSIZE_T ReserveSize; \
+    gcoCMDBUF CommandBuffer; \
+    gctUINT32_PTR Memory;
+
+#define gcmBEGINSTATEBUFFER_FAST(Hardware, CommandBuffer, Memory, ReserveSize) \
+{ \
+    gcmONERROR(gcoBUFFER_Reserve( \
+        Hardware->buffer, ReserveSize, gcvTRUE, &CommandBuffer \
+        )); \
+    \
+    Memory = (gctUINT32_PTR) gcmUINT64_TO_PTR(CommandBuffer->lastReserve); \
+    \
+    gcmBEGINSECUREUSER(); \
+}
+
+#define gcmBEGINSTATEBUFFER_NEW_FAST(Hardware, CommandBuffer, Memory, OutSide) \
+{ \
+    if (OutSide) \
+    {\
+        Memory = (gctUINT32_PTR)*OutSide; \
+    }\
+    else \
+    {\
+        gcmONERROR(gcoBUFFER_StartTEMPCMDBUF( \
+            Hardware->buffer, &CommandBuffer \
+            ));\
+        \
+        Memory = (gctUINT32_PTR)(CommandBuffer->buffer); \
+        \
+    }\
+    \
+    gcmBEGINSECUREUSER(); \
+    gcmSETLOADSTATEBASE(CommandBuffer,OutSide);\
+}
+/*******************************************************************************
+**
+**  gcmCONFIGUREUNIFORMS
+**
+**      Configure uniforms according to chip and numConstants.
+*/
+#if !gcdENABLE_UNIFIED_CONSTANT
+#define gcmCONFIGUREUNIFORMS(ChipModel, ChipRevision, NumConstants, \
+             UnifiedConst, VsConstBase, PsConstBase, VsConstMax, PsConstMax, ConstMax) \
+{ \
+    if (ChipModel == gcv2000 && ChipRevision == 0x5118) \
+    { \
+        UnifiedConst = gcvFALSE; \
+        VsConstBase  = AQVertexShaderConstRegAddrs; \
+        PsConstBase  = AQPixelShaderConstRegAddrs; \
+        VsConstMax   = 256; \
+        PsConstMax   = 64; \
+        ConstMax     = 320; \
+    } \
+    else if (NumConstants == 320) \
+    { \
+        UnifiedConst = gcvFALSE; \
+        VsConstBase  = AQVertexShaderConstRegAddrs; \
+        PsConstBase  = AQPixelShaderConstRegAddrs; \
+        VsConstMax   = 256; \
+        PsConstMax   = 64; \
+        ConstMax     = 320; \
+    } \
+    /* All GC1000 series chips can only support 64 uniforms for ps on non-unified const mode. */ \
+    else if (NumConstants > 256 && ChipModel == gcv1000) \
+    { \
+        UnifiedConst = gcvFALSE; \
+        VsConstBase  = AQVertexShaderConstRegAddrs; \
+        PsConstBase  = AQPixelShaderConstRegAddrs; \
+        VsConstMax   = 256; \
+        PsConstMax   = 64; \
+        ConstMax     = 320; \
+    } \
+    else if (NumConstants > 256) \
+    { \
+        UnifiedConst = gcvFALSE; \
+        VsConstBase  = AQVertexShaderConstRegAddrs; \
+        PsConstBase  = AQPixelShaderConstRegAddrs; \
+        VsConstMax   = 256; \
+        PsConstMax   = 256; \
+        ConstMax     = 512; \
+    } \
+    else if (NumConstants == 256) \
+    { \
+        UnifiedConst = gcvFALSE; \
+        VsConstBase  = AQVertexShaderConstRegAddrs; \
+        PsConstBase  = AQPixelShaderConstRegAddrs; \
+        VsConstMax   = 256; \
+        PsConstMax   = 256; \
+        ConstMax     = 512; \
+    } \
+    else \
+    { \
+        UnifiedConst = gcvFALSE; \
+        VsConstBase  = AQVertexShaderConstRegAddrs; \
+        PsConstBase  = AQPixelShaderConstRegAddrs; \
+        VsConstMax   = 168; \
+        PsConstMax   = 64; \
+        ConstMax     = 232; \
+    } \
+}
+#else
+#define gcmCONFIGUREUNIFORMS(ChipModel, ChipRevision, NumConstants, \
+             UnifiedConst, VsConstBase, PsConstBase, VsConstMax, PsConstMax, ConstMax) \
+{ \
+    if (NumConstants > 256) \
+    { \
+        UnifiedConst = gcvTRUE; \
+        VsConstBase  = gcregSHUniformsRegAddrs; \
+        PsConstBase  = gcregSHUniformsRegAddrs; \
+        VsConstMax   = gcmMIN(512, NumConstants - 64); \
+        PsConstMax   = gcmMIN(512, NumConstants - 64); \
+        ConstMax     = NumConstants; \
+    } \
+    else if (NumConstants == 256) \
+    { \
+        if (ChipModel == gcv2000 && ChipRevision == 0x5118) \
+        { \
+            UnifiedConst = gcvFALSE; \
+            VsConstBase  = AQVertexShaderConstRegAddrs; \
+            PsConstBase  = AQPixelShaderConstRegAddrs; \
+            VsConstMax   = 256; \
+            PsConstMax   = 64; \
+            ConstMax     = 320; \
+        } \
+        else \
+        { \
+            UnifiedConst = gcvFALSE; \
+            VsConstBase  = AQVertexShaderConstRegAddrs; \
+            PsConstBase  = AQPixelShaderConstRegAddrs; \
+            VsConstMax   = 256; \
+            PsConstMax   = 256; \
+            ConstMax     = 512; \
+        } \
+    } \
+    else \
+    { \
+        UnifiedConst = gcvFALSE; \
+        VsConstBase  = AQVertexShaderConstRegAddrs; \
+        PsConstBase  = AQPixelShaderConstRegAddrs; \
+        VsConstMax   = 168; \
+        PsConstMax   = 64; \
+        ConstMax     = 232; \
+    } \
+}
+#endif
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* __gc_hal_base_h_ */
diff --git a/src/hal/kernel/inc/gc_hal_driver.h b/src/hal/kernel/inc/gc_hal_driver.h
new file mode 100755
index 0000000..9530c82
--- /dev/null
+++ b/src/hal/kernel/inc/gc_hal_driver.h
@@ -0,0 +1,1203 @@
+/****************************************************************************
+*
+*    The MIT License (MIT)
+*
+*    Copyright (c) 2014 Vivante Corporation
+*
+*    Permission is hereby granted, free of charge, to any person obtaining a
+*    copy of this software and associated documentation files (the "Software"),
+*    to deal in the Software without restriction, including without limitation
+*    the rights to use, copy, modify, merge, publish, distribute, sublicense,
+*    and/or sell copies of the Software, and to permit persons to whom the
+*    Software is furnished to do so, subject to the following conditions:
+*
+*    The above copyright notice and this permission notice shall be included in
+*    all copies or substantial portions of the Software.
+*
+*    THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+*    IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+*    FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+*    AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+*    LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+*    FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+*    DEALINGS IN THE SOFTWARE.
+*
+*****************************************************************************
+*
+*    The GPL License (GPL)
+*
+*    Copyright (C) 2014  Vivante Corporation
+*
+*    This program is free software; you can redistribute it and/or
+*    modify it under the terms of the GNU General Public License
+*    as published by the Free Software Foundation; either version 2
+*    of the License, or (at your option) any later version.
+*
+*    This program is distributed in the hope that it will be useful,
+*    but WITHOUT ANY WARRANTY; without even the implied warranty of
+*    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+*    GNU General Public License for more details.
+*
+*    You should have received a copy of the GNU General Public License
+*    along with this program; if not, write to the Free Software Foundation,
+*    Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+*
+*****************************************************************************
+*
+*    Note: This software is released under dual MIT and GPL licenses. A
+*    recipient may use this file under the terms of either the MIT license or
+*    GPL License. If you wish to use only one license not the other, you can
+*    indicate your decision by deleting one of the above license notices in your
+*    version of this file.
+*
+*****************************************************************************/
+
+
+#ifndef __gc_hal_driver_h_
+#define __gc_hal_driver_h_
+
+#include "gc_hal_enum.h"
+#include "gc_hal_types.h"
+
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/******************************************************************************\
+******************************* I/O Control Codes ******************************
+\******************************************************************************/
+
+#define gcvHAL_CLASS                    "galcore"
+#define IOCTL_GCHAL_INTERFACE           30000
+#define IOCTL_GCHAL_KERNEL_INTERFACE    30001
+#define IOCTL_GCHAL_TERMINATE           30002
+
+/******************************************************************************\
+********************************* Command Codes ********************************
+\******************************************************************************/
+
+typedef enum _gceHAL_COMMAND_CODES
+{
+    /* Generic query. */
+    gcvHAL_QUERY_VIDEO_MEMORY,
+    gcvHAL_QUERY_CHIP_IDENTITY,
+
+    /* Contiguous memory. */
+    gcvHAL_ALLOCATE_NON_PAGED_MEMORY,
+    gcvHAL_FREE_NON_PAGED_MEMORY,
+    gcvHAL_ALLOCATE_CONTIGUOUS_MEMORY,
+    gcvHAL_FREE_CONTIGUOUS_MEMORY,
+
+    /* Video memory allocation. */
+    gcvHAL_ALLOCATE_VIDEO_MEMORY,           /* Enforced alignment. */
+    gcvHAL_ALLOCATE_LINEAR_VIDEO_MEMORY,    /* No alignment. */
+    gcvHAL_RELEASE_VIDEO_MEMORY,
+
+    /* Physical-to-logical mapping. */
+    gcvHAL_MAP_MEMORY,
+    gcvHAL_UNMAP_MEMORY,
+
+    /* Logical-to-physical mapping. */
+    gcvHAL_MAP_USER_MEMORY,
+    gcvHAL_UNMAP_USER_MEMORY,
+
+    /* Surface lock/unlock. */
+    gcvHAL_LOCK_VIDEO_MEMORY,
+    gcvHAL_UNLOCK_VIDEO_MEMORY,
+
+    /* Event queue. */
+    gcvHAL_EVENT_COMMIT,
+
+    gcvHAL_USER_SIGNAL,
+    gcvHAL_SIGNAL,
+    gcvHAL_WRITE_DATA,
+
+    gcvHAL_COMMIT,
+    gcvHAL_STALL,
+
+    gcvHAL_READ_REGISTER,
+    gcvHAL_WRITE_REGISTER,
+
+    gcvHAL_GET_PROFILE_SETTING,
+    gcvHAL_SET_PROFILE_SETTING,
+
+    gcvHAL_READ_ALL_PROFILE_REGISTERS,
+    gcvHAL_PROFILE_REGISTERS_2D,
+#if VIVANTE_PROFILER_PERDRAW
+    gcvHAL_READ_PROFILER_REGISTER_SETTING,
+#endif
+
+    /* Power management. */
+    gcvHAL_SET_POWER_MANAGEMENT_STATE,
+    gcvHAL_QUERY_POWER_MANAGEMENT_STATE,
+
+    gcvHAL_GET_BASE_ADDRESS,
+
+    gcvHAL_SET_IDLE, /* reserved */
+
+    /* Queries. */
+    gcvHAL_QUERY_KERNEL_SETTINGS,
+
+    /* Reset. */
+    gcvHAL_RESET,
+
+    /* Map physical address into handle. */
+    gcvHAL_MAP_PHYSICAL,
+
+    /* Debugger stuff. */
+    gcvHAL_DEBUG,
+
+    /* Cache stuff. */
+    gcvHAL_CACHE,
+
+    /* TimeStamp */
+    gcvHAL_TIMESTAMP,
+
+    /* Database. */
+    gcvHAL_DATABASE,
+
+    /* Version. */
+    gcvHAL_VERSION,
+
+    /* Chip info */
+    gcvHAL_CHIP_INFO,
+
+    /* Process attaching/detaching. */
+    gcvHAL_ATTACH,
+    gcvHAL_DETACH,
+
+    /* Composition. */
+    gcvHAL_COMPOSE,
+
+    /* Set timeOut value */
+    gcvHAL_SET_TIMEOUT,
+
+    /* Frame database. */
+    gcvHAL_GET_FRAME_INFO,
+
+    gcvHAL_QUERY_COMMAND_BUFFER,
+
+    gcvHAL_COMMIT_DONE,
+
+    /* GPU and event dump */
+    gcvHAL_DUMP_GPU_STATE,
+    gcvHAL_DUMP_EVENT,
+
+    /* Virtual command buffer. */
+    gcvHAL_ALLOCATE_VIRTUAL_COMMAND_BUFFER,
+    gcvHAL_FREE_VIRTUAL_COMMAND_BUFFER,
+
+    /* FSCALE_VAL. */
+    gcvHAL_SET_FSCALE_VALUE,
+    gcvHAL_GET_FSCALE_VALUE,
+
+    gcvHAL_NAME_VIDEO_MEMORY,
+    gcvHAL_IMPORT_VIDEO_MEMORY,
+
+    /* Reset time stamp. */
+    gcvHAL_QUERY_RESET_TIME_STAMP,
+
+    /* Multi-GPU read/write. */
+    gcvHAL_READ_REGISTER_EX,
+    gcvHAL_WRITE_REGISTER_EX,
+
+    /* Sync point operations. */
+    gcvHAL_SYNC_POINT,
+
+    /* Create native fence and return its fd. */
+    gcvHAL_CREATE_NATIVE_FENCE,
+
+    /* Wait native fence for GPU. */
+    gcvHAL_WAIT_NATIVE_FENCE,
+
+    /* Destory MMU. */
+    gcvHAL_DESTROY_MMU,
+
+    /* Shared buffer. */
+    gcvHAL_SHBUF,
+
+    /* Config power management. */
+    gcvHAL_CONFIG_POWER_MANAGEMENT,
+
+    /* Connect a video node to an OS native fd. */
+    gcvHAL_GET_VIDEO_MEMORY_FD,
+
+    /* Wrap a user memory into a video memory node. */
+    gcvHAL_WRAP_USER_MEMORY,
+
+#if gcdENABLE_DEC_COMPRESSION && gcdDEC_ENABLE_AHB
+    gcvHAL_DEC300_READ,
+    gcvHAL_DEC300_WRITE,
+    gcvHAL_DEC300_FLUSH,
+    gcvHAL_DEC300_FLUSH_WAIT,
+#endif
+}
+gceHAL_COMMAND_CODES;
+
+/******************************************************************************\
+****************************** Interface Structure *****************************
+\******************************************************************************/
+
+#define gcdMAX_PROFILE_FILE_NAME    128
+
+/* Kernel settings. */
+typedef struct _gcsKERNEL_SETTINGS
+{
+    /* Used RealTime signal between kernel and user. */
+    gctINT signal;
+}
+gcsKERNEL_SETTINGS;
+
+typedef struct _gcsUSER_MEMORY_DESC
+{
+    /* Import flag. */
+    gctUINT32                  flag;
+
+    /* gcvALLOC_FLAG_DMABUF */
+    gctUINT32                  handle;
+
+    /* gcvALLOC_FLAG_USERMEMORY */
+    gctUINT64                  logical;
+    gctUINT32                  physical;
+    gctUINT32                  size;
+}
+gcsUSER_MEMORY_DESC;
+
+
+/* gcvHAL_QUERY_CHIP_IDENTITY */
+typedef struct _gcsHAL_QUERY_CHIP_IDENTITY * gcsHAL_QUERY_CHIP_IDENTITY_PTR;
+typedef struct _gcsHAL_QUERY_CHIP_IDENTITY
+{
+
+    /* Chip model. */
+    gceCHIPMODEL                chipModel;
+
+    /* Revision value.*/
+    gctUINT32                   chipRevision;
+
+    /* Supported feature fields. */
+    gctUINT32                   chipFeatures;
+
+    /* Supported minor feature fields. */
+    gctUINT32                   chipMinorFeatures;
+
+    /* Supported minor feature 1 fields. */
+    gctUINT32                   chipMinorFeatures1;
+
+    /* Supported minor feature 2 fields. */
+    gctUINT32                   chipMinorFeatures2;
+
+    /* Supported minor feature 3 fields. */
+    gctUINT32                   chipMinorFeatures3;
+
+    /* Supported minor feature 4 fields. */
+    gctUINT32                   chipMinorFeatures4;
+
+    /* Supported minor feature 5 fields. */
+    gctUINT32                   chipMinorFeatures5;
+
+    /* Supported minor feature 5 fields. */
+    gctUINT32                   chipMinorFeatures6;
+
+    /* Number of streams supported. */
+    gctUINT32                   streamCount;
+
+    /* Total number of temporary registers per thread. */
+    gctUINT32                   registerMax;
+
+    /* Maximum number of threads. */
+    gctUINT32                   threadCount;
+
+    /* Number of shader cores. */
+    gctUINT32                   shaderCoreCount;
+
+    /* Size of the vertex cache. */
+    gctUINT32                   vertexCacheSize;
+
+    /* Number of entries in the vertex output buffer. */
+    gctUINT32                   vertexOutputBufferSize;
+
+    /* Number of pixel pipes. */
+    gctUINT32                   pixelPipes;
+
+    /* Number of instructions. */
+    gctUINT32                   instructionCount;
+
+    /* Number of constants. */
+    gctUINT32                   numConstants;
+
+    /* Buffer size */
+    gctUINT32                   bufferSize;
+
+    /* Number of varyings */
+    gctUINT32                   varyingsCount;
+
+    /* Supertile layout style in hardware */
+    gctUINT32                   superTileMode;
+
+
+    /* Special control bits for 2D chip. */
+    gctUINT32                   chip2DControl;
+
+    /* Product ID */
+    gctUINT32                   productID;
+
+    /* Special chip flag bits */
+    gceCHIP_FLAG                chipFlags;
+}
+gcsHAL_QUERY_CHIP_IDENTITY;
+
+/* gcvHAL_COMPOSE. */
+typedef struct _gcsHAL_COMPOSE * gcsHAL_COMPOSE_PTR;
+typedef struct _gcsHAL_COMPOSE
+{
+    /* Composition state buffer. */
+    gctUINT64                   physical;
+    gctUINT64                   logical;
+    gctUINT                     offset;
+    gctUINT                     size;
+
+    /* Composition end signal. */
+    gctUINT64                   process;
+    gctUINT64                   signal;
+
+    /* User signals. */
+    gctUINT64                   userProcess;
+    gctUINT64                   userSignal1;
+    gctUINT64                   userSignal2;
+
+#if defined(__QNXNTO__)
+    /* Client pulse side-channel connection ID. */
+    gctINT32                    coid;
+
+    /* Set by server. */
+    gctINT32                    rcvid;
+#endif
+}
+gcsHAL_COMPOSE;
+
+
+typedef struct _gcsHAL_INTERFACE
+{
+    /* Command code. */
+    gceHAL_COMMAND_CODES        command;
+
+    /* Hardware type. */
+    gceHARDWARE_TYPE            hardwareType;
+
+    /* Status value. */
+    gceSTATUS                   status;
+
+    /* Handle to this interface channel. */
+    gctUINT64                   handle;
+
+    /* Pid of the client. */
+    gctUINT32                   pid;
+
+    /* Union of command structures. */
+    union _u
+    {
+        /* gcvHAL_GET_BASE_ADDRESS */
+        struct _gcsHAL_GET_BASE_ADDRESS
+        {
+            /* Physical memory address of internal memory. */
+            OUT gctUINT32               baseAddress;
+        }
+        GetBaseAddress;
+
+        /* gcvHAL_QUERY_VIDEO_MEMORY */
+        struct _gcsHAL_QUERY_VIDEO_MEMORY
+        {
+            /* Physical memory address of internal memory. Just a name. */
+            OUT gctUINT32               internalPhysical;
+
+            /* Size in bytes of internal memory. */
+            OUT gctUINT64               internalSize;
+
+            /* Physical memory address of external memory. Just a name. */
+            OUT gctUINT32               externalPhysical;
+
+            /* Size in bytes of external memory.*/
+            OUT gctUINT64               externalSize;
+
+            /* Physical memory address of contiguous memory. Just a name. */
+            OUT gctUINT32               contiguousPhysical;
+
+            /* Size in bytes of contiguous memory.*/
+            OUT gctUINT64               contiguousSize;
+        }
+        QueryVideoMemory;
+
+        /* gcvHAL_QUERY_CHIP_IDENTITY */
+        gcsHAL_QUERY_CHIP_IDENTITY      QueryChipIdentity;
+
+        /* gcvHAL_MAP_MEMORY */
+        struct _gcsHAL_MAP_MEMORY
+        {
+            /* Physical memory address to map. Just a name on Linux/Qnx. */
+            IN gctUINT32                physical;
+
+            /* Number of bytes in physical memory to map. */
+            IN gctUINT64                bytes;
+
+            /* Address of mapped memory. */
+            OUT gctUINT64               logical;
+        }
+        MapMemory;
+
+        /* gcvHAL_UNMAP_MEMORY */
+        struct _gcsHAL_UNMAP_MEMORY
+        {
+            /* Physical memory address to unmap. Just a name on Linux/Qnx. */
+            IN gctUINT32                physical;
+
+            /* Number of bytes in physical memory to unmap. */
+            IN gctUINT64                bytes;
+
+            /* Address of mapped memory to unmap. */
+            IN gctUINT64                logical;
+        }
+        UnmapMemory;
+
+        /* gcvHAL_ALLOCATE_LINEAR_VIDEO_MEMORY */
+        struct _gcsHAL_ALLOCATE_LINEAR_VIDEO_MEMORY
+        {
+            /* Number of bytes to allocate. */
+            IN OUT gctUINT              bytes;
+
+            /* Buffer alignment. */
+            IN gctUINT                  alignment;
+
+            /* Type of allocation. */
+            IN gceSURF_TYPE             type;
+
+            /* Flag of allocation. */
+            IN gctUINT32                flag;
+
+            /* Memory pool to allocate from. */
+            IN OUT gcePOOL              pool;
+
+            /* Allocated video memory. */
+            OUT gctUINT32               node;
+        }
+        AllocateLinearVideoMemory;
+
+        /* gcvHAL_ALLOCATE_VIDEO_MEMORY */
+        struct _gcsHAL_ALLOCATE_VIDEO_MEMORY
+        {
+            /* Width of rectangle to allocate. */
+            IN OUT gctUINT              width;
+
+            /* Height of rectangle to allocate. */
+            IN OUT gctUINT              height;
+
+            /* Depth of rectangle to allocate. */
+            IN gctUINT                  depth;
+
+            /* Format rectangle to allocate in gceSURF_FORMAT. */
+            IN gceSURF_FORMAT           format;
+
+            /* Type of allocation. */
+            IN gceSURF_TYPE             type;
+
+            /* Memory pool to allocate from. */
+            IN OUT gcePOOL              pool;
+
+            /* Allocated video memory. */
+            OUT gctUINT32               node;
+        }
+        AllocateVideoMemory;
+
+        /* gcvHAL_RELEASE_VIDEO_MEMORY */
+        struct _gcsHAL_RELEASE_VIDEO_MEMORY
+        {
+            /* Allocated video memory. */
+            IN gctUINT32                node;
+
+#ifdef __QNXNTO__
+/* TODO: This is part of the unlock - why is it here? */
+            /* Mapped logical address to unmap in user space. */
+            OUT gctUINT64               memory;
+
+            /* Number of bytes to allocated. */
+            OUT gctUINT64               bytes;
+#endif
+        }
+        ReleaseVideoMemory;
+
+        /* gcvHAL_LOCK_VIDEO_MEMORY */
+        struct _gcsHAL_LOCK_VIDEO_MEMORY
+        {
+            /* Allocated video memory. */
+            IN gctUINT32                node;
+
+            /* Cache configuration. */
+            /* Only gcvPOOL_CONTIGUOUS and gcvPOOL_VIRUTAL
+            ** can be configured */
+            IN gctBOOL                  cacheable;
+
+            /* Hardware specific address. */
+            OUT gctUINT32               address;
+
+            /* Mapped logical address. */
+            OUT gctUINT64               memory;
+
+            /* Customer priviate handle*/
+            OUT gctUINT32               gid;
+
+            /* Bus address of a contiguous video node. */
+            OUT gctUINT64               physicalAddress;
+        }
+        LockVideoMemory;
+
+        /* gcvHAL_UNLOCK_VIDEO_MEMORY */
+        struct _gcsHAL_UNLOCK_VIDEO_MEMORY
+        {
+            /* Allocated video memory. */
+            IN gctUINT64                node;
+
+            /* Type of surface. */
+            IN gceSURF_TYPE             type;
+
+            /* Flag to unlock surface asynchroneously. */
+            IN OUT gctBOOL              asynchroneous;
+        }
+        UnlockVideoMemory;
+
+        /* gcvHAL_ALLOCATE_NON_PAGED_MEMORY */
+        struct _gcsHAL_ALLOCATE_NON_PAGED_MEMORY
+        {
+            /* Number of bytes to allocate. */
+            IN OUT gctUINT64        bytes;
+
+            /* Physical address of allocation. Just a name. */
+            OUT gctUINT32           physical;
+
+            /* Logical address of allocation. */
+            OUT gctUINT64           logical;
+        }
+        AllocateNonPagedMemory;
+
+        /* gcvHAL_FREE_NON_PAGED_MEMORY */
+        struct _gcsHAL_FREE_NON_PAGED_MEMORY
+        {
+            /* Number of bytes allocated. */
+            IN gctUINT64            bytes;
+
+            /* Physical address of allocation. Just a name. */
+            IN gctUINT32            physical;
+
+            /* Logical address of allocation. */
+            IN gctUINT64            logical;
+        }
+        FreeNonPagedMemory;
+
+        /* gcvHAL_ALLOCATE_NON_PAGED_MEMORY */
+        struct _gcsHAL_ALLOCATE_VIRTUAL_COMMAND_BUFFER
+        {
+            /* Number of bytes to allocate. */
+            IN OUT gctUINT64        bytes;
+
+            /* Physical address of allocation. Just a name. */
+            OUT gctUINT32           physical;
+
+            /* Logical address of allocation. */
+            OUT gctUINT64           logical;
+        }
+        AllocateVirtualCommandBuffer;
+
+        /* gcvHAL_FREE_NON_PAGED_MEMORY */
+        struct _gcsHAL_FREE_VIRTUAL_COMMAND_BUFFER
+        {
+            /* Number of bytes allocated. */
+            IN gctUINT64            bytes;
+
+            /* Physical address of allocation. Just a name. */
+            IN gctUINT32            physical;
+
+            /* Logical address of allocation. */
+            IN gctUINT64            logical;
+        }
+        FreeVirtualCommandBuffer;
+
+        /* gcvHAL_EVENT_COMMIT. */
+        struct _gcsHAL_EVENT_COMMIT
+        {
+            /* Event queue in gcsQUEUE. */
+            IN gctUINT64            queue;
+
+        }
+        Event;
+
+        /* gcvHAL_COMMIT */
+        struct _gcsHAL_COMMIT
+        {
+            /* Context buffer object gckCONTEXT. */
+            IN gctUINT64            context;
+
+            /* Command buffer gcoCMDBUF. */
+            IN gctUINT64            commandBuffer;
+
+            /* State delta buffer in gcsSTATE_DELTA. */
+            gctUINT64               delta;
+
+            /* Event queue in gcsQUEUE. */
+            IN gctUINT64            queue;
+
+        }
+        Commit;
+
+        /* gcvHAL_MAP_USER_MEMORY */
+        struct _gcsHAL_MAP_USER_MEMORY
+        {
+            /* Base address of user memory to map. */
+            IN gctUINT64                memory;
+
+            /* Physical address of user memory to map. */
+            IN gctUINT32                physical;
+
+            /* Size of user memory in bytes to map. */
+            IN gctUINT64                size;
+
+            /* Info record required by gcvHAL_UNMAP_USER_MEMORY. Just a name. */
+            OUT gctUINT32               info;
+
+            /* Physical address of mapped memory. */
+            OUT gctUINT32               address;
+        }
+        MapUserMemory;
+
+        /* gcvHAL_UNMAP_USER_MEMORY */
+        struct _gcsHAL_UNMAP_USER_MEMORY
+        {
+            /* Base address of user memory to unmap. */
+            IN gctUINT64                memory;
+
+            /* Size of user memory in bytes to unmap. */
+            IN gctUINT64                size;
+
+            /* Info record returned by gcvHAL_MAP_USER_MEMORY. Just a name. */
+            IN gctUINT32                info;
+
+            /* Physical address of mapped memory as returned by
+               gcvHAL_MAP_USER_MEMORY. */
+            IN gctUINT32                address;
+        }
+        UnmapUserMemory;
+#if !USE_NEW_LINUX_SIGNAL
+        /* gcsHAL_USER_SIGNAL  */
+        struct _gcsHAL_USER_SIGNAL
+        {
+            /* Command. */
+            gceUSER_SIGNAL_COMMAND_CODES command;
+
+            /* Signal ID. */
+            IN OUT gctINT               id;
+
+            /* Reset mode. */
+            IN gctBOOL                  manualReset;
+
+            /* Wait timedout. */
+            IN gctUINT32                wait;
+
+            /* State. */
+            IN gctBOOL                  state;
+        }
+        UserSignal;
+#endif
+
+        /* gcvHAL_SIGNAL. */
+        struct _gcsHAL_SIGNAL
+        {
+            /* Signal handle to signal gctSIGNAL. */
+            IN gctUINT64                signal;
+
+            /* Reserved gctSIGNAL. */
+            IN gctUINT64                auxSignal;
+
+            /* Process owning the signal gctHANDLE. */
+            IN gctUINT64                process;
+
+#if defined(__QNXNTO__)
+            /* Client pulse side-channel connection ID. Set by client in gcoOS_CreateSignal. */
+            IN gctINT32                 coid;
+
+            /* Set by server. */
+            IN gctINT32                 rcvid;
+#endif
+            /* Event generated from where of pipeline */
+            IN gceKERNEL_WHERE          fromWhere;
+        }
+        Signal;
+
+        /* gcvHAL_WRITE_DATA. */
+        struct _gcsHAL_WRITE_DATA
+        {
+            /* Address to write data to. */
+            IN gctUINT32                address;
+
+            /* Data to write. */
+            IN gctUINT32                data;
+        }
+        WriteData;
+
+        /* gcvHAL_ALLOCATE_CONTIGUOUS_MEMORY */
+        struct _gcsHAL_ALLOCATE_CONTIGUOUS_MEMORY
+        {
+            /* Number of bytes to allocate. */
+            IN OUT gctUINT64            bytes;
+
+            /* Hardware address of allocation. */
+            OUT gctUINT32               address;
+
+            /* Physical address of allocation. Just a name. */
+            OUT gctUINT32               physical;
+
+            /* Logical address of allocation. */
+            OUT gctUINT64               logical;
+        }
+        AllocateContiguousMemory;
+
+        /* gcvHAL_FREE_CONTIGUOUS_MEMORY */
+        struct _gcsHAL_FREE_CONTIGUOUS_MEMORY
+        {
+            /* Number of bytes allocated. */
+            IN gctUINT64                bytes;
+
+            /* Physical address of allocation. Just a name. */
+            IN gctUINT32                physical;
+
+            /* Logical address of allocation. */
+            IN gctUINT64                logical;
+        }
+        FreeContiguousMemory;
+
+        /* gcvHAL_READ_REGISTER */
+        struct _gcsHAL_READ_REGISTER
+        {
+            /* Logical address of memory to write data to. */
+            IN gctUINT32            address;
+
+            /* Data read. */
+            OUT gctUINT32           data;
+        }
+        ReadRegisterData;
+
+        /* gcvHAL_WRITE_REGISTER */
+        struct _gcsHAL_WRITE_REGISTER
+        {
+            /* Logical address of memory to write data to. */
+            IN gctUINT32            address;
+
+            /* Data read. */
+            IN gctUINT32            data;
+        }
+        WriteRegisterData;
+
+
+#if VIVANTE_PROFILER
+        /* gcvHAL_GET_PROFILE_SETTING */
+        struct _gcsHAL_GET_PROFILE_SETTING
+        {
+            /* Enable profiling */
+            OUT gctBOOL             enable;
+        }
+        GetProfileSetting;
+
+        /* gcvHAL_SET_PROFILE_SETTING */
+        struct _gcsHAL_SET_PROFILE_SETTING
+        {
+            /* Enable profiling */
+            IN gctBOOL              enable;
+        }
+        SetProfileSetting;
+
+#if VIVANTE_PROFILER_PERDRAW
+        /* gcvHAL_READ_PROFILER_REGISTER_SETTING */
+        struct _gcsHAL_READ_PROFILER_REGISTER_SETTING
+         {
+            /*Should Clear Register*/
+            IN gctBOOL               bclear;
+         }
+        SetProfilerRegisterClear;
+#endif
+
+        /* gcvHAL_READ_ALL_PROFILE_REGISTERS */
+        struct _gcsHAL_READ_ALL_PROFILE_REGISTERS
+        {
+#if VIVANTE_PROFILER_CONTEXT
+            /* Context buffer object gckCONTEXT. Just a name. */
+            IN gctUINT32                context;
+#endif
+
+            /* Data read. */
+            OUT gcsPROFILER_COUNTERS    counters;
+        }
+        RegisterProfileData;
+
+        /* gcvHAL_PROFILE_REGISTERS_2D */
+        struct _gcsHAL_PROFILE_REGISTERS_2D
+        {
+            /* Data read in gcs2D_PROFILE. */
+            OUT gctUINT64       hwProfile2D;
+        }
+        RegisterProfileData2D;
+#endif
+
+        /* Power management. */
+        /* gcvHAL_SET_POWER_MANAGEMENT_STATE */
+        struct _gcsHAL_SET_POWER_MANAGEMENT
+        {
+            /* Data read. */
+            IN gceCHIPPOWERSTATE        state;
+        }
+        SetPowerManagement;
+
+        /* gcvHAL_QUERY_POWER_MANAGEMENT_STATE */
+        struct _gcsHAL_QUERY_POWER_MANAGEMENT
+        {
+            /* Data read. */
+            OUT gceCHIPPOWERSTATE       state;
+
+            /* Idle query. */
+            OUT gctBOOL                 isIdle;
+        }
+        QueryPowerManagement;
+
+        /* gcvHAL_QUERY_KERNEL_SETTINGS */
+        struct _gcsHAL_QUERY_KERNEL_SETTINGS
+        {
+            /* Settings.*/
+            OUT gcsKERNEL_SETTINGS      settings;
+        }
+        QueryKernelSettings;
+
+        /* gcvHAL_MAP_PHYSICAL */
+        struct _gcsHAL_MAP_PHYSICAL
+        {
+            /* gcvTRUE to map, gcvFALSE to unmap. */
+            IN gctBOOL                  map;
+
+            /* Physical address. */
+            IN OUT gctUINT64            physical;
+        }
+        MapPhysical;
+
+        /* gcvHAL_DEBUG */
+        struct _gcsHAL_DEBUG
+        {
+            /* If gcvTRUE, set the debug information. */
+            IN gctBOOL                  set;
+            IN gctUINT32                level;
+            IN gctUINT32                zones;
+            IN gctBOOL                  enable;
+
+            IN gceDEBUG_MESSAGE_TYPE    type;
+            IN gctUINT32                messageSize;
+
+            /* Message to print if not empty. */
+            IN gctCHAR                  message[80];
+        }
+        Debug;
+
+        /* gcvHAL_CACHE */
+        struct _gcsHAL_CACHE
+        {
+            IN gceCACHEOPERATION        operation;
+            IN gctUINT64                process;
+            IN gctUINT64                logical;
+            IN gctUINT64                bytes;
+            IN gctUINT32                node;
+        }
+        Cache;
+
+        /* gcvHAL_TIMESTAMP */
+        struct _gcsHAL_TIMESTAMP
+        {
+            /* Timer select. */
+            IN gctUINT32                timer;
+
+            /* Timer request type (0-stop, 1-start, 2-send delta). */
+            IN gctUINT32                request;
+
+            /* Result of delta time in microseconds. */
+            OUT gctINT32                timeDelta;
+        }
+        TimeStamp;
+
+        /* gcvHAL_DATABASE */
+        struct _gcsHAL_DATABASE
+        {
+            /* Set to gcvTRUE if you want to query a particular process ID.
+            ** Set to gcvFALSE to query the last detached process. */
+            IN gctBOOL                  validProcessID;
+
+            /* Process ID to query. */
+            IN gctUINT32                processID;
+
+            /* Information. */
+            OUT gcuDATABASE_INFO        vidMem;
+            OUT gcuDATABASE_INFO        nonPaged;
+            OUT gcuDATABASE_INFO        contiguous;
+            OUT gcuDATABASE_INFO        gpuIdle;
+
+            /* Detail information about video memory. */
+            OUT gcuDATABASE_INFO        vidMemPool[3];
+        }
+        Database;
+
+        /* gcvHAL_VERSION */
+        struct _gcsHAL_VERSION
+        {
+            /* Major version: N.n.n. */
+            OUT gctINT32                major;
+
+            /* Minor version: n.N.n. */
+            OUT gctINT32                minor;
+
+            /* Patch version: n.n.N. */
+            OUT gctINT32                patch;
+
+            /* Build version. */
+            OUT gctUINT32               build;
+        }
+        Version;
+
+        /* gcvHAL_CHIP_INFO */
+        struct _gcsHAL_CHIP_INFO
+        {
+            /* Chip count. */
+            OUT gctINT32                count;
+
+            /* Chip types. */
+            OUT gceHARDWARE_TYPE        types[gcdCHIP_COUNT];
+        }
+        ChipInfo;
+
+        /* gcvHAL_ATTACH */
+        struct _gcsHAL_ATTACH
+        {
+            /* Handle of context buffer object. */
+            OUT gctUINT32               context;
+
+            /* Maximum state in the buffer. */
+            OUT gctUINT64               maxState;
+
+            /* Number of states in the buffer. */
+            OUT gctUINT32               numStates;
+
+            /* Map context buffer to user or not. */
+            IN gctBOOL                  map;
+
+            /* Physical of context buffer. */
+            OUT gctUINT32               physicals[2];
+
+            /* Physical of context buffer. */
+            OUT gctUINT64               logicals[2];
+
+            /* Bytes of context buffer. */
+            OUT gctUINT32               bytes;
+        }
+        Attach;
+
+        /* gcvHAL_DETACH */
+        struct _gcsHAL_DETACH
+        {
+            /* Context buffer object gckCONTEXT. Just a name. */
+            IN gctUINT32                context;
+        }
+        Detach;
+
+        /* gcvHAL_COMPOSE. */
+        gcsHAL_COMPOSE            Compose;
+
+        /* gcvHAL_GET_FRAME_INFO. */
+        struct _gcsHAL_GET_FRAME_INFO
+        {
+            /* gcsHAL_FRAME_INFO* */
+            OUT gctUINT64     frameInfo;
+        }
+        GetFrameInfo;
+
+        /* gcvHAL_SET_TIME_OUT. */
+        struct _gcsHAL_SET_TIMEOUT
+        {
+            gctUINT32                   timeOut;
+        }
+        SetTimeOut;
+
+
+        struct _gcsHAL_SET_FSCALE_VALUE
+        {
+            IN gctUINT              value;
+        }
+        SetFscaleValue;
+
+        struct _gcsHAL_GET_FSCALE_VALUE
+        {
+            OUT gctUINT             value;
+            OUT gctUINT             minValue;
+            OUT gctUINT             maxValue;
+        }
+        GetFscaleValue;
+
+        struct _gcsHAL_NAME_VIDEO_MEMORY
+        {
+            IN gctUINT32            handle;
+            OUT gctUINT32           name;
+        }
+        NameVideoMemory;
+
+        struct _gcsHAL_IMPORT_VIDEO_MEMORY
+        {
+            IN gctUINT32            name;
+            OUT gctUINT32           handle;
+        }
+        ImportVideoMemory;
+
+        struct _gcsHAL_QUERY_RESET_TIME_STAMP
+        {
+            OUT gctUINT64           timeStamp;
+        }
+        QueryResetTimeStamp;
+
+        struct _gcsHAL_SYNC_POINT
+        {
+            /* Command. */
+            gceSYNC_POINT_COMMAND_CODES command;
+
+            /* Sync point. */
+            IN OUT gctUINT64            syncPoint;
+
+            /* From where. */
+            IN gceKERNEL_WHERE          fromWhere;
+
+            /* Signaled state. */
+            OUT gctBOOL                 state;
+        }
+        SyncPoint;
+
+        struct _gcsHAL_CREATE_NATIVE_FENCE
+        {
+            /* Signal id to dup. */
+            IN gctUINT64                syncPoint;
+
+            /* Native fence file descriptor. */
+            OUT gctINT                  fenceFD;
+
+        }
+        CreateNativeFence;
+
+        struct _gcsHAL_WAIT_NATIVE_FENCE
+        {
+            /* Native fence file descriptor. */
+            IN gctINT                   fenceFD;
+
+            /* Wait timeout. */
+            IN gctUINT32                timeout;
+        }
+        WaitNativeFence;
+
+        struct _gcsHAL_DESTROY_MMU
+        {
+            /* Mmu object. */
+            IN gctUINT64                mmu;
+        }
+        DestroyMmu;
+
+        struct _gcsHAL_SHBUF
+        {
+            gceSHBUF_COMMAND_CODES      command;
+
+            /* Shared buffer. */
+            IN OUT gctUINT64            id;
+
+            /* User data to be shared. */
+            IN gctUINT64                data;
+
+            /* Data size. */
+            IN OUT gctUINT32            bytes;
+        }
+        ShBuf;
+
+        struct _gcsHAL_CONFIG_POWER_MANAGEMENT
+        {
+            IN gctBOOL                  enable;
+        }
+        ConfigPowerManagement;
+
+        struct _gcsHAL_GET_VIDEO_MEMORY_FD
+        {
+            IN gctUINT32            handle;
+            OUT gctINT              fd;
+        }
+        GetVideoMemoryFd;
+
+        struct _gcsHAL_WRAP_USER_MEMORY
+        {
+            /* Handle from other allocators. */
+            IN gctUINT32                handle;
+
+            /* Allocation flag to wrap user memory*/
+            IN gctUINT32                flag;
+
+            /* Video mmory node. */
+            OUT gctUINT32               node;
+
+            /* Description of user memory. */
+            IN gcsUSER_MEMORY_DESC      desc;
+        }
+        WrapUserMemory;
+
+#if gcdENABLE_DEC_COMPRESSION && gcdDEC_ENABLE_AHB
+        struct _gcsHAL_DEC300_READ
+        {
+            gctUINT32      enable;
+            gctUINT32      readId;
+            gctUINT32      format;
+            gctUINT32      strides[3];
+            gctUINT32      is3D;
+            gctUINT32      isMSAA;
+            gctUINT32      clearValue;
+            gctUINT32      isTPC;
+            gctUINT32      isTPCCompressed;
+            gctUINT32      surfAddrs[3];
+            gctUINT32      tileAddrs[3];
+        }
+        DEC300Read;
+
+        struct _gcsHAL_DEC300_WRITE
+        {
+            gctUINT32       enable;
+            gctUINT32       readId;
+            gctUINT32       writeId;
+            gctUINT32       format;
+            gctUINT32       surfAddr;
+            gctUINT32       tileAddr;
+        }
+        DEC300Write;
+
+        struct _gcsHAL_DEC300_FLUSH
+        {
+            IN gctUINT8     useless;
+        }
+        DEC300Flush;
+
+        struct _gcsHAL_DEC300_FLUSH_WAIT
+        {
+            IN gctUINT32    done;
+        }
+        DEC300FlushWait;
+#endif
+    }
+    u;
+}
+gcsHAL_INTERFACE;
+
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* __gc_hal_driver_h_ */
diff --git a/src/hal/kernel/inc/gc_hal_dump.h b/src/hal/kernel/inc/gc_hal_dump.h
new file mode 100755
index 0000000..b203f8f
--- /dev/null
+++ b/src/hal/kernel/inc/gc_hal_dump.h
@@ -0,0 +1,123 @@
+/****************************************************************************
+*
+*    The MIT License (MIT)
+*
+*    Copyright (c) 2014 Vivante Corporation
+*
+*    Permission is hereby granted, free of charge, to any person obtaining a
+*    copy of this software and associated documentation files (the "Software"),
+*    to deal in the Software without restriction, including without limitation
+*    the rights to use, copy, modify, merge, publish, distribute, sublicense,
+*    and/or sell copies of the Software, and to permit persons to whom the
+*    Software is furnished to do so, subject to the following conditions:
+*
+*    The above copyright notice and this permission notice shall be included in
+*    all copies or substantial portions of the Software.
+*
+*    THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+*    IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+*    FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+*    AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+*    LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+*    FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+*    DEALINGS IN THE SOFTWARE.
+*
+*****************************************************************************
+*
+*    The GPL License (GPL)
+*
+*    Copyright (C) 2014  Vivante Corporation
+*
+*    This program is free software; you can redistribute it and/or
+*    modify it under the terms of the GNU General Public License
+*    as published by the Free Software Foundation; either version 2
+*    of the License, or (at your option) any later version.
+*
+*    This program is distributed in the hope that it will be useful,
+*    but WITHOUT ANY WARRANTY; without even the implied warranty of
+*    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+*    GNU General Public License for more details.
+*
+*    You should have received a copy of the GNU General Public License
+*    along with this program; if not, write to the Free Software Foundation,
+*    Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+*
+*****************************************************************************
+*
+*    Note: This software is released under dual MIT and GPL licenses. A
+*    recipient may use this file under the terms of either the MIT license or
+*    GPL License. If you wish to use only one license not the other, you can
+*    indicate your decision by deleting one of the above license notices in your
+*    version of this file.
+*
+*****************************************************************************/
+
+
+#ifndef __gc_hal_dump_h_
+#define __gc_hal_dump_h_
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/*
+**    FILE LAYOUT:
+**
+**        gcsDUMP_FILE structure
+**
+**        gcsDUMP_DATA frame
+**            gcsDUMP_DATA or gcDUMP_DATA_SIZE records rendingring the frame
+**            gctUINT8 data[length]
+*/
+
+#define gcvDUMP_FILE_SIGNATURE        gcmCC('g','c','D','B')
+
+typedef struct _gcsDUMP_FILE
+{
+    gctUINT32           signature;    /* File signature */
+    gctSIZE_T             length;        /* Length of file */
+    gctUINT32             frames;        /* Number of frames in file */
+}
+gcsDUMP_FILE;
+
+typedef enum _gceDUMP_TAG
+{
+    gcvTAG_SURFACE                  = gcmCC('s','u','r','f'),
+    gcvTAG_FRAME                    = gcmCC('f','r','m',' '),
+    gcvTAG_COMMAND                  = gcmCC('c','m','d',' '),
+    gcvTAG_INDEX                    = gcmCC('i','n','d','x'),
+    gcvTAG_STREAM                   = gcmCC('s','t','r','m'),
+    gcvTAG_TEXTURE                  = gcmCC('t','e','x','t'),
+    gcvTAG_RENDER_TARGET            = gcmCC('r','n','d','r'),
+    gcvTAG_DEPTH                    = gcmCC('z','b','u','f'),
+    gcvTAG_RESOLVE                  = gcmCC('r','s','l','v'),
+    gcvTAG_DELETE                   = gcmCC('d','e','l',' '),
+    gcvTAG_BUFOBJ                   = gcmCC('b','u','f','o'),
+}
+gceDUMP_TAG;
+
+typedef struct _gcsDUMP_SURFACE
+{
+    gceDUMP_TAG            type;        /* Type of record. */
+    gctUINT32             address;    /* Address of the surface. */
+    gctINT16              width;        /* Width of surface. */
+    gctINT16               height;        /* Height of surface. */
+    gceSURF_FORMAT        format;        /* Surface pixel format. */
+    gctSIZE_T            length;        /* Number of bytes inside the surface. */
+}
+gcsDUMP_SURFACE;
+
+typedef struct _gcsDUMP_DATA
+{
+    gceDUMP_TAG             type;        /* Type of record. */
+    gctSIZE_T             length;        /* Number of bytes of data. */
+    gctUINT32             address;    /* Address for the data. */
+}
+gcsDUMP_DATA;
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* __gc_hal_dump_h_ */
+
diff --git a/src/hal/kernel/inc/gc_hal_eglplatform.h b/src/hal/kernel/inc/gc_hal_eglplatform.h
new file mode 100755
index 0000000..76326c2
--- /dev/null
+++ b/src/hal/kernel/inc/gc_hal_eglplatform.h
@@ -0,0 +1,676 @@
+/****************************************************************************
+*
+*    The MIT License (MIT)
+*
+*    Copyright (c) 2014 Vivante Corporation
+*
+*    Permission is hereby granted, free of charge, to any person obtaining a
+*    copy of this software and associated documentation files (the "Software"),
+*    to deal in the Software without restriction, including without limitation
+*    the rights to use, copy, modify, merge, publish, distribute, sublicense,
+*    and/or sell copies of the Software, and to permit persons to whom the
+*    Software is furnished to do so, subject to the following conditions:
+*
+*    The above copyright notice and this permission notice shall be included in
+*    all copies or substantial portions of the Software.
+*
+*    THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+*    IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+*    FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+*    AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+*    LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+*    FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+*    DEALINGS IN THE SOFTWARE.
+*
+*****************************************************************************
+*
+*    The GPL License (GPL)
+*
+*    Copyright (C) 2014  Vivante Corporation
+*
+*    This program is free software; you can redistribute it and/or
+*    modify it under the terms of the GNU General Public License
+*    as published by the Free Software Foundation; either version 2
+*    of the License, or (at your option) any later version.
+*
+*    This program is distributed in the hope that it will be useful,
+*    but WITHOUT ANY WARRANTY; without even the implied warranty of
+*    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+*    GNU General Public License for more details.
+*
+*    You should have received a copy of the GNU General Public License
+*    along with this program; if not, write to the Free Software Foundation,
+*    Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+*
+*****************************************************************************
+*
+*    Note: This software is released under dual MIT and GPL licenses. A
+*    recipient may use this file under the terms of either the MIT license or
+*    GPL License. If you wish to use only one license not the other, you can
+*    indicate your decision by deleting one of the above license notices in your
+*    version of this file.
+*
+*****************************************************************************/
+
+
+#ifndef __gc_hal_eglplatform_h_
+#define __gc_hal_eglplatform_h_
+
+/* Include VDK types. */
+#include "gc_hal_types.h"
+#include "gc_hal_base.h"
+#include "gc_hal_eglplatform_type.h"
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+
+#if defined(_WIN32) || defined(__VC32__) && !defined(__CYGWIN__) && !defined(__SCITECH_SNAP__)
+/* Win32 and Windows CE platforms. */
+#include <windows.h>
+typedef HDC             HALNativeDisplayType;
+typedef HWND            HALNativeWindowType;
+typedef HBITMAP         HALNativePixmapType;
+
+typedef struct __BITFIELDINFO{
+    BITMAPINFO    bmi;
+    RGBQUAD       bmiColors[2];
+} BITFIELDINFO;
+
+#elif defined(LINUX) && defined(EGL_API_DFB) && !defined(__APPLE__)
+#include <directfb.h>
+typedef struct _DFBDisplay * HALNativeDisplayType;
+typedef struct _DFBWindow *  HALNativeWindowType;
+typedef struct _DFBPixmap *  HALNativePixmapType;
+
+#elif defined(LINUX) && defined(EGL_API_FB) && !defined(__APPLE__)
+
+#if defined(EGL_API_WL)
+
+#if defined(__GNUC__)
+#   define inline            __inline__  /* GNU keyword. */
+#endif
+
+/* Wayland platform. */
+#include <wayland-egl.h>
+
+#define WL_EGL_NUM_BACKBUFFERS 3
+#define WL_COMPOSITOR_SIGNATURE (0x31415926)
+
+typedef struct _gcsWL_VIV_BUFFER
+{
+   struct wl_resource *wl_buffer;
+   gcoSURF surface;
+   gctINT32 width, height;
+} gcsWL_VIV_BUFFER;
+
+typedef struct _gcsWL_EGL_DISPLAY
+{
+   struct wl_display* wl_display;
+   struct wl_viv* wl_viv;
+   struct wl_registry *registry;
+   struct wl_event_queue    *wl_queue;
+   struct wl_event_queue    *wl_swap_queue;
+   gctINT swapInterval;
+} gcsWL_EGL_DISPLAY;
+
+typedef struct _gcsWL_EGL_BUFFER_INFO
+{
+   gctINT32 width;
+   gctINT32 height;
+   gctINT32 stride;
+   gceSURF_FORMAT format;
+   gceSURF_TYPE   type;
+   gcuVIDMEM_NODE_PTR node;
+   gcePOOL pool;
+   gctUINT bytes;
+   gcoSURF surface;
+   gcoSURF attached_surface;
+   gctINT32 invalidate;
+   gctBOOL locked;
+} gcsWL_EGL_BUFFER_INFO;
+
+typedef struct _gcsWL_EGL_BUFFER
+{
+   struct wl_buffer* wl_buffer;
+   gcsWL_EGL_BUFFER_INFO info;
+   struct wl_callback* frame_callback;
+} gcsWL_EGL_BUFFER;
+
+typedef struct _gcsWL_EGL_WINDOW_INFO
+{
+   gctINT32 dx;
+   gctINT32 dy;
+   gctUINT width;
+   gctUINT height;
+   gctINT32 attached_width;
+   gctINT32 attached_height;
+   gceSURF_FORMAT format;
+   gctUINT bpp;
+} gcsWL_EGL_WINDOW_INFO;
+
+struct wl_egl_window
+{
+   gcsWL_EGL_DISPLAY* display;
+   gcsWL_EGL_BUFFER backbuffers[WL_EGL_NUM_BACKBUFFERS];
+   gcsWL_EGL_WINDOW_INFO info;
+   gctUINT current;
+   struct wl_surface* surface;
+};
+
+typedef void*   HALNativeDisplayType;
+typedef void*   HALNativeWindowType;
+typedef void*   HALNativePixmapType;
+#else
+/* Linux platform for FBDEV. */
+typedef struct _FBDisplay * HALNativeDisplayType;
+typedef struct _FBWindow *  HALNativeWindowType;
+typedef struct _FBPixmap *  HALNativePixmapType;
+#endif
+#elif defined(__ANDROID__) || defined(ANDROID)
+
+struct egl_native_pixmap_t;
+
+#if ANDROID_SDK_VERSION >= 9
+    #include <android/native_window.h>
+
+    typedef struct ANativeWindow*           HALNativeWindowType;
+    typedef struct egl_native_pixmap_t*     HALNativePixmapType;
+    typedef void*                           HALNativeDisplayType;
+#else
+    struct android_native_window_t;
+    typedef struct android_native_window_t*    HALNativeWindowType;
+    typedef struct egl_native_pixmap_t *        HALNativePixmapType;
+    typedef void*                               HALNativeDisplayType;
+#endif
+
+#elif defined(LINUX) || defined(__APPLE__)
+/* X11 platform. */
+#include <X11/Xlib.h>
+#include <X11/Xutil.h>
+
+typedef Display *   HALNativeDisplayType;
+typedef Window      HALNativeWindowType;
+
+#ifdef CUSTOM_PIXMAP
+typedef void *      HALNativePixmapType;
+#else
+typedef Pixmap      HALNativePixmapType;
+#endif /* CUSTOM_PIXMAP */
+
+/* Rename some badly named X defines. */
+#ifdef Status
+#   define XStatus      int
+#   undef Status
+#endif
+#ifdef Always
+#   define XAlways      2
+#   undef Always
+#endif
+#ifdef CurrentTime
+#   undef CurrentTime
+#   define XCurrentTime 0
+#endif
+
+#elif defined(__QNXNTO__)
+#include <screen/screen.h>
+
+/* VOID */
+typedef int              HALNativeDisplayType;
+typedef screen_window_t  HALNativeWindowType;
+typedef screen_pixmap_t  HALNativePixmapType;
+
+#else
+
+#error "Platform not recognized"
+
+/* VOID */
+typedef void *  HALNativeDisplayType;
+typedef void *  HALNativeWindowType;
+typedef void *  HALNativePixmapType;
+
+#endif
+
+/* define DUMMY according to the system */
+#if defined(EGL_API_WL)
+#   define WL_DUMMY (31415926)
+#   define EGL_DUMMY WL_DUMMY
+#elif defined(__ANDROID__) || defined(ANDROID)
+#   define ANDROID_DUMMY (31415926)
+#   define EGL_DUMMY ANDROID_DUMMY
+#else
+#   define EGL_DUMMY (31415926)
+#endif
+
+/*******************************************************************************
+** Display. ********************************************************************
+*/
+
+gceSTATUS
+gcoOS_GetDisplay(
+    OUT HALNativeDisplayType * Display,
+    IN gctPOINTER Context
+    );
+
+gceSTATUS
+gcoOS_GetDisplayByIndex(
+    IN gctINT DisplayIndex,
+    OUT HALNativeDisplayType * Display,
+    IN gctPOINTER Context
+    );
+
+gceSTATUS
+gcoOS_GetDisplayInfo(
+    IN HALNativeDisplayType Display,
+    OUT gctINT * Width,
+    OUT gctINT * Height,
+    OUT gctSIZE_T * Physical,
+    OUT gctINT * Stride,
+    OUT gctINT * BitsPerPixel
+    );
+
+
+
+gceSTATUS
+gcoOS_GetDisplayInfoEx(
+    IN HALNativeDisplayType Display,
+    IN HALNativeWindowType Window,
+    IN gctUINT DisplayInfoSize,
+    OUT halDISPLAY_INFO * DisplayInfo
+    );
+
+gceSTATUS
+gcoOS_GetDisplayVirtual(
+    IN HALNativeDisplayType Display,
+    OUT gctINT * Width,
+    OUT gctINT * Height
+    );
+
+gceSTATUS
+gcoOS_GetDisplayBackbuffer(
+    IN HALNativeDisplayType Display,
+    IN HALNativeWindowType Window,
+    OUT gctPOINTER  *  context,
+    OUT gcoSURF     *  surface,
+    OUT gctUINT * Offset,
+    OUT gctINT * X,
+    OUT gctINT * Y
+    );
+
+gceSTATUS
+gcoOS_SetDisplayVirtual(
+    IN HALNativeDisplayType Display,
+    IN HALNativeWindowType Window,
+    IN gctUINT Offset,
+    IN gctINT X,
+    IN gctINT Y
+    );
+
+gceSTATUS
+gcoOS_SetDisplayVirtualEx(
+    IN HALNativeDisplayType Display,
+    IN HALNativeWindowType Window,
+    IN gctPOINTER Context,
+    IN gcoSURF Surface,
+    IN gctUINT Offset,
+    IN gctINT X,
+    IN gctINT Y
+    );
+
+gceSTATUS
+gcoOS_SetSwapInterval(
+    IN HALNativeDisplayType Display,
+    IN gctINT Interval
+);
+
+gceSTATUS
+gcoOS_SetSwapIntervalEx(
+    IN HALNativeDisplayType Display,
+    IN gctINT Interval,
+    IN gctPOINTER localDisplay);
+
+gceSTATUS
+gcoOS_GetSwapInterval(
+    IN HALNativeDisplayType Display,
+    IN gctINT_PTR Min,
+    IN gctINT_PTR Max
+);
+
+gceSTATUS
+gcoOS_DisplayBufferRegions(
+    IN HALNativeDisplayType Display,
+    IN HALNativeWindowType Window,
+    IN gctINT NumRects,
+    IN gctINT_PTR Rects
+    );
+
+gceSTATUS
+gcoOS_DestroyDisplay(
+    IN HALNativeDisplayType Display
+    );
+
+gceSTATUS
+gcoOS_InitLocalDisplayInfo(
+    IN HALNativeDisplayType Display,
+    IN OUT gctPOINTER * localDisplay
+    );
+
+gceSTATUS
+gcoOS_DeinitLocalDisplayInfo(
+    IN HALNativeDisplayType Display,
+    IN OUT gctPOINTER * localDisplay
+    );
+
+gceSTATUS
+gcoOS_GetDisplayInfoEx2(
+    IN HALNativeDisplayType Display,
+    IN HALNativeWindowType Window,
+    IN gctPOINTER  localDisplay,
+    IN gctUINT DisplayInfoSize,
+    OUT halDISPLAY_INFO * DisplayInfo
+    );
+
+gceSTATUS
+gcoOS_GetDisplayBackbufferEx(
+    IN HALNativeDisplayType Display,
+    IN HALNativeWindowType Window,
+    IN gctPOINTER  localDisplay,
+    OUT gctPOINTER  *  context,
+    OUT gcoSURF     *  surface,
+    OUT gctUINT * Offset,
+    OUT gctINT * X,
+    OUT gctINT * Y
+    );
+
+gceSTATUS
+gcoOS_IsValidDisplay(
+    IN HALNativeDisplayType Display
+    );
+
+gceSTATUS
+gcoOS_GetNativeVisualId(
+    IN HALNativeDisplayType Display,
+    OUT gctINT* nativeVisualId
+    );
+
+gctBOOL
+gcoOS_SynchronousFlip(
+    IN HALNativeDisplayType Display
+    );
+
+/*******************************************************************************
+** Windows. ********************************************************************
+*/
+
+gceSTATUS
+gcoOS_CreateWindow(
+    IN HALNativeDisplayType Display,
+    IN gctINT X,
+    IN gctINT Y,
+    IN gctINT Width,
+    IN gctINT Height,
+    OUT HALNativeWindowType * Window
+    );
+
+gceSTATUS
+gcoOS_GetWindowInfo(
+    IN HALNativeDisplayType Display,
+    IN HALNativeWindowType Window,
+    OUT gctINT * X,
+    OUT gctINT * Y,
+    OUT gctINT * Width,
+    OUT gctINT * Height,
+    OUT gctINT * BitsPerPixel,
+    OUT gctUINT * Offset
+    );
+
+gceSTATUS
+gcoOS_SetWindowFormat(
+    IN HALNativeDisplayType Display,
+    IN HALNativeWindowType Window,
+    IN gceTILING Tiling,
+    IN gceSURF_FORMAT Format
+    );
+
+gceSTATUS
+gcoOS_DestroyWindow(
+    IN HALNativeDisplayType Display,
+    IN HALNativeWindowType Window
+    );
+
+gceSTATUS
+gcoOS_DrawImage(
+    IN HALNativeDisplayType Display,
+    IN HALNativeWindowType Window,
+    IN gctINT Left,
+    IN gctINT Top,
+    IN gctINT Right,
+    IN gctINT Bottom,
+    IN gctINT Width,
+    IN gctINT Height,
+    IN gctINT BitsPerPixel,
+    IN gctPOINTER Bits
+    );
+
+gceSTATUS
+gcoOS_GetImage(
+    IN HALNativeWindowType Window,
+    IN gctINT Left,
+    IN gctINT Top,
+    IN gctINT Right,
+    IN gctINT Bottom,
+    OUT gctINT * BitsPerPixel,
+    OUT gctPOINTER * Bits
+    );
+
+gceSTATUS
+gcoOS_GetWindowInfoEx(
+    IN HALNativeDisplayType Display,
+    IN HALNativeWindowType Window,
+    OUT gctINT * X,
+    OUT gctINT * Y,
+    OUT gctINT * Width,
+    OUT gctINT * Height,
+    OUT gctINT * BitsPerPixel,
+    OUT gctUINT * Offset,
+    OUT gceSURF_FORMAT * Format
+    );
+
+gceSTATUS
+gcoOS_DrawImageEx(
+    IN HALNativeDisplayType Display,
+    IN HALNativeWindowType Window,
+    IN gctINT Left,
+    IN gctINT Top,
+    IN gctINT Right,
+    IN gctINT Bottom,
+    IN gctINT Width,
+    IN gctINT Height,
+    IN gctINT BitsPerPixel,
+    IN gctPOINTER Bits,
+    IN gceSURF_FORMAT  Format
+    );
+
+/*******************************************************************************
+** Pixmaps. ********************************************************************
+*/
+
+gceSTATUS
+gcoOS_CreatePixmap(
+    IN HALNativeDisplayType Display,
+    IN gctINT Width,
+    IN gctINT Height,
+    IN gctINT BitsPerPixel,
+    OUT HALNativePixmapType * Pixmap
+    );
+
+gceSTATUS
+gcoOS_GetPixmapInfo(
+    IN HALNativeDisplayType Display,
+    IN HALNativePixmapType Pixmap,
+    OUT gctINT * Width,
+    OUT gctINT * Height,
+    OUT gctINT * BitsPerPixel,
+    OUT gctINT * Stride,
+    OUT gctPOINTER * Bits
+    );
+
+gceSTATUS
+gcoOS_DrawPixmap(
+    IN HALNativeDisplayType Display,
+    IN HALNativePixmapType Pixmap,
+    IN gctINT Left,
+    IN gctINT Top,
+    IN gctINT Right,
+    IN gctINT Bottom,
+    IN gctINT Width,
+    IN gctINT Height,
+    IN gctINT BitsPerPixel,
+    IN gctPOINTER Bits
+    );
+
+gceSTATUS
+gcoOS_DestroyPixmap(
+    IN HALNativeDisplayType Display,
+    IN HALNativePixmapType Pixmap
+    );
+
+gceSTATUS
+gcoOS_GetPixmapInfoEx(
+    IN HALNativeDisplayType Display,
+    IN HALNativePixmapType Pixmap,
+    OUT gctINT * Width,
+    OUT gctINT * Height,
+    OUT gctINT * BitsPerPixel,
+    OUT gctINT * Stride,
+    OUT gctPOINTER * Bits,
+    OUT gceSURF_FORMAT * Format
+    );
+
+gceSTATUS
+gcoOS_CopyPixmapBits(
+    IN HALNativeDisplayType Display,
+    IN HALNativePixmapType Pixmap,
+    IN gctUINT DstWidth,
+    IN gctUINT DstHeight,
+    IN gctINT DstStride,
+    IN gceSURF_FORMAT DstFormat,
+    OUT gctPOINTER DstBits
+    );
+
+/*******************************************************************************
+** OS relative. ****************************************************************
+*/
+gceSTATUS
+gcoOS_LoadEGLLibrary(
+    OUT gctHANDLE * Handle
+    );
+
+gceSTATUS
+gcoOS_FreeEGLLibrary(
+    IN gctHANDLE Handle
+    );
+
+gceSTATUS
+gcoOS_ShowWindow(
+    IN HALNativeDisplayType Display,
+    IN HALNativeWindowType Window
+    );
+
+gceSTATUS
+gcoOS_HideWindow(
+    IN HALNativeDisplayType Display,
+    IN HALNativeWindowType Window
+    );
+
+gceSTATUS
+gcoOS_SetWindowTitle(
+    IN HALNativeDisplayType Display,
+    IN HALNativeWindowType Window,
+    IN gctCONST_STRING Title
+    );
+
+gceSTATUS
+gcoOS_CapturePointer(
+    IN HALNativeDisplayType Display,
+    IN HALNativeWindowType Window
+    );
+
+gceSTATUS
+gcoOS_GetEvent(
+    IN HALNativeDisplayType Display,
+    IN HALNativeWindowType Window,
+    OUT halEvent * Event
+    );
+
+gceSTATUS
+gcoOS_CreateClientBuffer(
+    IN gctINT Width,
+    IN gctINT Height,
+    IN gctINT Format,
+    IN gctINT Type,
+    OUT gctPOINTER * ClientBuffer
+    );
+
+gceSTATUS
+gcoOS_GetClientBufferInfo(
+    IN gctPOINTER ClientBuffer,
+    OUT gctINT * Width,
+    OUT gctINT * Height,
+    OUT gctINT * Stride,
+    OUT gctPOINTER * Bits
+    );
+
+gceSTATUS
+gcoOS_DestroyClientBuffer(
+    IN gctPOINTER ClientBuffer
+    );
+
+gceSTATUS
+gcoOS_DestroyContext(
+    IN gctPOINTER Display,
+    IN gctPOINTER Context
+    );
+
+gceSTATUS
+gcoOS_CreateContext(
+    IN gctPOINTER LocalDisplay,
+    IN gctPOINTER Context
+    );
+
+gceSTATUS
+gcoOS_MakeCurrent(
+    IN gctPOINTER LocalDisplay,
+    IN HALNativeWindowType DrawDrawable,
+    IN HALNativeWindowType ReadDrawable,
+    IN gctPOINTER Context,
+    IN gcoSURF ResolveTarget
+    );
+
+gceSTATUS
+gcoOS_CreateDrawable(
+    IN gctPOINTER LocalDisplay,
+    IN HALNativeWindowType Drawable
+    );
+
+gceSTATUS
+gcoOS_DestroyDrawable(
+    IN gctPOINTER LocalDisplay,
+    IN HALNativeWindowType Drawable
+    );
+gceSTATUS
+gcoOS_SwapBuffers(
+    IN gctPOINTER LocalDisplay,
+    IN HALNativeWindowType Drawable,
+    IN gcoSURF RenderTarget,
+    IN gcoSURF ResolveTarget,
+    IN gctPOINTER ResolveBits,
+    OUT gctUINT *Width,
+    OUT gctUINT *Height
+    );
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* __gc_hal_eglplatform_h_ */
+
diff --git a/src/hal/kernel/inc/gc_hal_enum.h b/src/hal/kernel/inc/gc_hal_enum.h
new file mode 100755
index 0000000..aeb11ef
--- /dev/null
+++ b/src/hal/kernel/inc/gc_hal_enum.h
@@ -0,0 +1,1650 @@
+/****************************************************************************
+*
+*    The MIT License (MIT)
+*
+*    Copyright (c) 2014 Vivante Corporation
+*
+*    Permission is hereby granted, free of charge, to any person obtaining a
+*    copy of this software and associated documentation files (the "Software"),
+*    to deal in the Software without restriction, including without limitation
+*    the rights to use, copy, modify, merge, publish, distribute, sublicense,
+*    and/or sell copies of the Software, and to permit persons to whom the
+*    Software is furnished to do so, subject to the following conditions:
+*
+*    The above copyright notice and this permission notice shall be included in
+*    all copies or substantial portions of the Software.
+*
+*    THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+*    IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+*    FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+*    AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+*    LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+*    FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+*    DEALINGS IN THE SOFTWARE.
+*
+*****************************************************************************
+*
+*    The GPL License (GPL)
+*
+*    Copyright (C) 2014  Vivante Corporation
+*
+*    This program is free software; you can redistribute it and/or
+*    modify it under the terms of the GNU General Public License
+*    as published by the Free Software Foundation; either version 2
+*    of the License, or (at your option) any later version.
+*
+*    This program is distributed in the hope that it will be useful,
+*    but WITHOUT ANY WARRANTY; without even the implied warranty of
+*    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+*    GNU General Public License for more details.
+*
+*    You should have received a copy of the GNU General Public License
+*    along with this program; if not, write to the Free Software Foundation,
+*    Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+*
+*****************************************************************************
+*
+*    Note: This software is released under dual MIT and GPL licenses. A
+*    recipient may use this file under the terms of either the MIT license or
+*    GPL License. If you wish to use only one license not the other, you can
+*    indicate your decision by deleting one of the above license notices in your
+*    version of this file.
+*
+*****************************************************************************/
+
+
+#ifndef __gc_hal_enum_h_
+#define __gc_hal_enum_h_
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/* Chip models. */
+typedef enum _gceCHIPMODEL
+{
+    gcv200  = 0x0200,
+    gcv300  = 0x0300,
+    gcv320  = 0x0320,
+    gcv328  = 0x0328,
+    gcv350  = 0x0350,
+    gcv355  = 0x0355,
+    gcv400  = 0x0400,
+    gcv410  = 0x0410,
+    gcv420  = 0x0420,
+    gcv428  = 0x0428,
+    gcv450  = 0x0450,
+    gcv500  = 0x0500,
+    gcv520  = 0x0520,
+    gcv530  = 0x0530,
+    gcv600  = 0x0600,
+    gcv700  = 0x0700,
+    gcv800  = 0x0800,
+    gcv860  = 0x0860,
+    gcv880  = 0x0880,
+    gcv1000 = 0x1000,
+    gcv1500 = 0x1500,
+    gcv2000 = 0x2000,
+    gcv2100 = 0x2100,
+    gcv2200 = 0x2200,
+    gcv2500 = 0x2500,
+    gcv3000 = 0x3000,
+    gcv4000 = 0x4000,
+    gcv5000 = 0x5000,
+    gcv5200 = 0x5200,
+    gcv6400 = 0x6400,
+}
+gceCHIPMODEL;
+
+/* Chip features. */
+typedef enum _gceFEATURE
+{
+    gcvFEATURE_PIPE_2D = 0,
+    gcvFEATURE_PIPE_3D,
+    gcvFEATURE_PIPE_VG,
+    gcvFEATURE_DC,
+    gcvFEATURE_HIGH_DYNAMIC_RANGE,
+    gcvFEATURE_MODULE_CG,
+    gcvFEATURE_MIN_AREA,
+    gcvFEATURE_BUFFER_INTERLEAVING,
+    gcvFEATURE_BYTE_WRITE_2D,
+    gcvFEATURE_ENDIANNESS_CONFIG,
+    gcvFEATURE_DUAL_RETURN_BUS,
+    gcvFEATURE_DEBUG_MODE,
+    gcvFEATURE_YUY2_RENDER_TARGET,
+    gcvFEATURE_FRAGMENT_PROCESSOR,
+    gcvFEATURE_2DPE20,
+    gcvFEATURE_FAST_CLEAR,
+    gcvFEATURE_YUV420_TILER,
+    gcvFEATURE_YUY2_AVERAGING,
+    gcvFEATURE_FLIP_Y,
+    gcvFEATURE_EARLY_Z,
+    gcvFEATURE_COMPRESSION,
+    gcvFEATURE_MSAA,
+    gcvFEATURE_SPECIAL_ANTI_ALIASING,
+    gcvFEATURE_SPECIAL_MSAA_LOD,
+    gcvFEATURE_422_TEXTURE_COMPRESSION,
+    gcvFEATURE_DXT_TEXTURE_COMPRESSION,
+    gcvFEATURE_ETC1_TEXTURE_COMPRESSION,
+    gcvFEATURE_CORRECT_TEXTURE_CONVERTER,
+    gcvFEATURE_TEXTURE_8K,
+    gcvFEATURE_SCALER,
+    gcvFEATURE_YUV420_SCALER,
+    gcvFEATURE_SHADER_HAS_W,
+    gcvFEATURE_SHADER_HAS_SIGN,
+    gcvFEATURE_SHADER_HAS_FLOOR,
+    gcvFEATURE_SHADER_HAS_CEIL,
+    gcvFEATURE_SHADER_HAS_SQRT,
+    gcvFEATURE_SHADER_HAS_TRIG,
+    gcvFEATURE_VAA,
+    gcvFEATURE_HZ,
+    gcvFEATURE_CORRECT_STENCIL,
+    gcvFEATURE_VG20,
+    gcvFEATURE_VG_FILTER,
+    gcvFEATURE_VG21,
+    gcvFEATURE_VG_DOUBLE_BUFFER,
+    gcvFEATURE_MC20,
+    gcvFEATURE_SUPER_TILED,
+    gcvFEATURE_FAST_CLEAR_FLUSH,
+    gcvFEATURE_2D_FILTERBLIT_PLUS_ALPHABLEND,
+    gcvFEATURE_2D_DITHER,
+    gcvFEATURE_2D_A8_TARGET,
+    gcvFEATURE_2D_A8_NO_ALPHA,
+    gcvFEATURE_2D_FILTERBLIT_FULLROTATION,
+    gcvFEATURE_2D_BITBLIT_FULLROTATION,
+    gcvFEATURE_WIDE_LINE,
+    gcvFEATURE_FC_FLUSH_STALL,
+    gcvFEATURE_FULL_DIRECTFB,
+    gcvFEATURE_HALF_FLOAT_PIPE,
+    gcvFEATURE_LINE_LOOP,
+    gcvFEATURE_2D_YUV_BLIT,
+    gcvFEATURE_2D_TILING,
+    gcvFEATURE_NON_POWER_OF_TWO,
+    gcvFEATURE_3D_TEXTURE,
+    gcvFEATURE_TEXTURE_ARRAY,
+    gcvFEATURE_TILE_FILLER,
+    gcvFEATURE_LOGIC_OP,
+    gcvFEATURE_COMPOSITION,
+    gcvFEATURE_MIXED_STREAMS,
+    gcvFEATURE_2D_MULTI_SOURCE_BLT,
+    gcvFEATURE_END_EVENT,
+    gcvFEATURE_VERTEX_10_10_10_2,
+    gcvFEATURE_TEXTURE_10_10_10_2,
+    gcvFEATURE_TEXTURE_ANISOTROPIC_FILTERING,
+    gcvFEATURE_TEXTURE_FLOAT_HALF_FLOAT,
+    gcvFEATURE_2D_ROTATION_STALL_FIX,
+    gcvFEATURE_2D_MULTI_SOURCE_BLT_EX,
+    gcvFEATURE_BUG_FIXES10,
+    gcvFEATURE_2D_MINOR_TILING,
+    /* Supertiled compressed textures are supported. */
+    gcvFEATURE_TEX_COMPRRESSION_SUPERTILED,
+    gcvFEATURE_FAST_MSAA,
+    gcvFEATURE_BUG_FIXED_INDEXED_TRIANGLE_STRIP,
+    gcvFEATURE_INDEX_FETCH_FIX,
+    gcvFEATURE_TEXTURE_TILE_STATUS_READ,
+    gcvFEATURE_DEPTH_BIAS_FIX,
+    gcvFEATURE_RECT_PRIMITIVE,
+    gcvFEATURE_BUG_FIXES11,
+    gcvFEATURE_SUPERTILED_TEXTURE,
+    gcvFEATURE_2D_NO_COLORBRUSH_INDEX8,
+    gcvFEATURE_RS_YUV_TARGET,
+    gcvFEATURE_2D_FC_SOURCE,
+    gcvFEATURE_2D_CC_NOAA_SOURCE,
+    gcvFEATURE_PE_DITHER_FIX,
+    gcvFEATURE_2D_YUV_SEPARATE_STRIDE,
+    gcvFEATURE_FRUSTUM_CLIP_FIX,
+    gcvFEATURE_TEXTURE_SWIZZLE,
+    gcvFEATURE_PRIMITIVE_RESTART,
+    gcvFEATURE_TEXTURE_LINEAR,
+    gcvFEATURE_TEXTURE_YUV_ASSEMBLER,
+    gcvFEATURE_LINEAR_RENDER_TARGET,
+    gcvFEATURE_SHADER_HAS_ATOMIC,
+    gcvFEATURE_SHADER_HAS_INSTRUCTION_CACHE,
+    gcvFEATURE_SHADER_ENHANCEMENTS2,
+    gcvFEATURE_BUG_FIXES7,
+    gcvFEATURE_SHADER_HAS_RTNE,
+    gcvFEATURE_SHADER_HAS_EXTRA_INSTRUCTIONS2,
+    gcvFEATURE_SHADER_ENHANCEMENTS3,
+    gcvFEATURE_DYNAMIC_FREQUENCY_SCALING,
+    gcvFEATURE_SINGLE_BUFFER,
+    gcvFEATURE_OCCLUSION_QUERY,
+    gcvFEATURE_2D_GAMMA,
+    gcvFEATURE_2D_COLOR_SPACE_CONVERSION,
+    gcvFEATURE_2D_SUPER_TILE_VERSION,
+    gcvFEATURE_HALTI0,
+    gcvFEATURE_HALTI1,
+    gcvFEATURE_HALTI2,
+    gcvFEATURE_2D_MIRROR_EXTENSION,
+    gcvFEATURE_TEXTURE_ASTC,
+    gcvFEATURE_TEXTURE_ASTC_FIX,
+    gcvFEATURE_2D_SUPER_TILE_V1,
+    gcvFEATURE_2D_SUPER_TILE_V2,
+    gcvFEATURE_2D_SUPER_TILE_V3,
+    gcvFEATURE_2D_MULTI_SOURCE_BLT_EX2,
+    gcvFEATURE_NEW_RA,
+    gcvFEATURE_BUG_FIXED_IMPLICIT_PRIMITIVE_RESTART,
+    gcvFEATURE_PE_MULTI_RT_BLEND_ENABLE_CONTROL,
+    gcvFEATURE_SMALL_MSAA, /* An upgraded version of Fast MSAA */
+    gcvFEATURE_VERTEX_INST_ID_AS_ATTRIBUTE,
+    gcvFEATURE_DUAL_16,
+    gcvFEATURE_BRANCH_ON_IMMEDIATE_REG,
+    gcvFEATURE_2D_COMPRESSION,
+    gcvFEATURE_TPC_COMPRESSION,
+    gcvFEATURE_DEC_COMPRESSION,
+    gcvFEATURE_DEC_TPC_COMPRESSION,
+    gcvFEATURE_DEC_COMPRESSION_TILE_NV12_8BIT,
+    gcvFEATURE_DEC_COMPRESSION_TILE_NV12_10BIT,
+    gcvFEATURE_2D_OPF_YUV_OUTPUT,
+    gcvFEATURE_2D_FILTERBLIT_A8_ALPHA,
+    gcvFEATURE_2D_MULTI_SRC_BLT_TO_UNIFIED_DST_RECT,
+    gcvFEATURE_V2_COMPRESSION_Z16_FIX,
+
+    gcvFEATURE_VERTEX_INST_ID_AS_INTEGER,
+    gcvFEATURE_2D_YUV_MODE,
+    gcvFEATURE_ACE,
+    gcvFEATURE_COLOR_COMPRESSION,
+
+    gcvFEATURE_32BPP_COMPONENT_TEXTURE_CHANNEL_SWIZZLE,
+    gcvFEATURE_64BPP_HW_CLEAR_SUPPORT,
+    gcvFEATURE_TX_LERP_PRECISION_FIX,
+    gcvFEATURE_COMPRESSION_V2,
+    gcvFEATURE_MMU,
+    gcvFEATURE_COMPRESSION_V3,
+    gcvFEATURE_TX_DECOMPRESSOR,
+    gcvFEATURE_MRT_TILE_STATUS_BUFFER,
+    gcvFEATURE_COMPRESSION_V1,
+    gcvFEATURE_V1_COMPRESSION_Z16_DECOMPRESS_FIX,
+    gcvFEATURE_RTT,
+    gcvFEATURE_GENERICS,
+    gcvFEATURE_2D_ONE_PASS_FILTER,
+    gcvFEATURE_2D_ONE_PASS_FILTER_TAP,
+    gcvFEATURE_2D_POST_FLIP,
+    gcvFEATURE_2D_PIXEL_ALIGNMENT,
+    gcvFEATURE_CORRECT_AUTO_DISABLE_COUNT,
+    gcvFEATURE_CORRECT_AUTO_DISABLE_COUNT_WIDTH,
+
+    gcvFEATURE_HALTI3,
+    gcvFEATURE_EEZ,
+    gcvFEATURE_INTEGER_SIGNEXT_FIX,
+    gcvFEATURE_INTEGER_PIPE_FIX,
+    gcvFEATURE_PSOUTPUT_MAPPING,
+    gcvFEATURE_8K_RT_FIX,
+    gcvFEATURE_TX_TILE_STATUS_MAPPING,
+    gcvFEATURE_SRGB_RT_SUPPORT,
+    gcvFEATURE_UNIFORM_APERTURE,
+    gcvFEATURE_TEXTURE_16K,
+    gcvFEATURE_PA_FARZCLIPPING_FIX,
+    gcvFEATURE_PE_DITHER_COLORMASK_FIX,
+    gcvFEATURE_ZSCALE_FIX,
+
+    gcvFEATURE_MULTI_PIXELPIPES,
+    gcvFEATURE_PIPE_CL,
+
+    gcvFEATURE_BUG_FIXES18,
+
+    gcvFEATURE_UNIFIED_SAMPLERS,
+    gcvFEATURE_CL_PS_WALKER,
+    gcvFEATURE_NEW_HZ,
+
+    gcvFEATURE_TX_FRAC_PRECISION_6BIT,
+    gcvFEATURE_SH_INSTRUCTION_PREFETCH,
+    gcvFEATURE_PROBE,
+
+    gcvFEATURE_BUG_FIXES8,
+    gcvFEATURE_2D_ALL_QUAD,
+
+    gcvFEATURE_SINGLE_PIPE_HALTI1,
+
+    gcvFEATURE_BLOCK_SIZE_16x16,
+
+    gcvFEATURE_NO_USER_CSC,
+    gcvFEATURE_ANDROID_ONLY,
+    gcvFEATURE_HAS_PRODUCTID,
+
+    gcvFEATURE_V2_MSAA_COMP_FIX,
+
+    gcvFEATURE_S8_ONLY_RENDERING,
+
+    gcvFEATURE_SEPARATE_SRC_DST,
+
+    gcvFEATURE_FE_START_VERTEX_SUPPORT,
+    gcvFEATURE_FE_RESET_VERTEX_ID,
+    gcvFEATURE_RS_DEPTHSTENCIL_NATIVE_SUPPORT,
+
+    gcvFEATURE_HALTI4,
+    gcvFEATURE_MSAA_FRAGMENT_OPERATION,
+    gcvFEATURE_ZERO_ATTRIB_SUPPORT,
+    gcvFEATURE_TEX_CACHE_FLUSH_FIX,
+
+    /* Insert features above this comment only. */
+    gcvFEATURE_COUNT                /* Not a feature. */
+}
+gceFEATURE;
+
+/* Chip SWWA. */
+typedef enum _gceSWWA
+{
+    gcvSWWA_601 = 0,
+    gcvSWWA_706,
+    gcvSWWA_1163,
+    gcvSWWA_1165,
+    /* Insert SWWA above this comment only. */
+    gcvSWWA_COUNT                   /* Not a SWWA. */
+}
+gceSWWA;
+
+
+/* Option Set*/
+typedef enum _gceOPITON
+{
+    /* HW setting we take PREFER */
+    gcvOPTION_PREFER_MULTIPIPE_RS = 0,
+    gcvOPTION_PREFER_ZCONVERT_BYPASS =1,
+
+
+    gcvOPTION_HW_NULL = 50,
+    gcvOPTION_PRINT_OPTION = 51,
+
+    gcvOPTION_FBO_PREFER_MEM = 80,
+
+    /* Insert option above this comment only */
+    gcvOPTION_COUNT                     /* Not a OPTION*/
+}
+gceOPTION;
+
+typedef enum _gceFRAMEINFO
+{
+    gcvFRAMEINFO_FRAME_NUM       = 0,
+    gcvFRAMEINFO_DRAW_NUM        = 1,
+    gcvFRAMEINFO_DRAW_DUAL16_NUM = 2,
+    gcvFRAMEINFO_DRAW_FL32_NUM   = 3,
+
+
+    gcvFRAMEINFO_COUNT,
+}
+gceFRAMEINFO;
+
+typedef enum _gceFRAMEINFO_OP
+{
+    gcvFRAMEINFO_OP_INC       = 0,
+    gcvFRAMEINFO_OP_DEC       = 1,
+    gcvFRAMEINFO_OP_ZERO      = 2,
+    gcvFRAMEINFO_OP_GET       = 3,
+
+    gcvFRAMEINFO_OP_COUNT,
+}
+gceFRAMEINFO_OP;
+
+
+/* Chip Power Status. */
+typedef enum _gceCHIPPOWERSTATE
+{
+    gcvPOWER_ON = 0,
+    gcvPOWER_OFF,
+    gcvPOWER_IDLE,
+    gcvPOWER_SUSPEND,
+    gcvPOWER_SUSPEND_ATPOWERON,
+    gcvPOWER_OFF_ATPOWERON,
+    gcvPOWER_IDLE_BROADCAST,
+    gcvPOWER_SUSPEND_BROADCAST,
+    gcvPOWER_OFF_BROADCAST,
+    gcvPOWER_OFF_RECOVERY,
+    gcvPOWER_OFF_TIMEOUT,
+    gcvPOWER_ON_AUTO
+}
+gceCHIPPOWERSTATE;
+
+/* CPU cache operations */
+typedef enum _gceCACHEOPERATION
+{
+    gcvCACHE_CLEAN      = 0x01,
+    gcvCACHE_INVALIDATE = 0x02,
+    gcvCACHE_FLUSH      = gcvCACHE_CLEAN  | gcvCACHE_INVALIDATE,
+    gcvCACHE_MEMORY_BARRIER = 0x04
+}
+gceCACHEOPERATION;
+
+/* Surface types. */
+typedef enum _gceSURF_TYPE
+{
+    gcvSURF_TYPE_UNKNOWN = 0,
+    gcvSURF_INDEX,
+    gcvSURF_VERTEX,
+    gcvSURF_TEXTURE,
+    gcvSURF_RENDER_TARGET,
+    gcvSURF_DEPTH,
+    gcvSURF_BITMAP,
+    gcvSURF_TILE_STATUS,
+    gcvSURF_IMAGE,
+    gcvSURF_MASK,
+    gcvSURF_SCISSOR,
+    gcvSURF_HIERARCHICAL_DEPTH,
+    gcvSURF_NUM_TYPES, /* Make sure this is the last one! */
+
+    /* Combinations. */
+    gcvSURF_NO_TILE_STATUS = 0x100,
+    gcvSURF_NO_VIDMEM      = 0x200, /* Used to allocate surfaces with no underlying vidmem node.
+                                       In Android, vidmem node is allocated by another process. */
+    gcvSURF_CACHEABLE      = 0x400, /* Used to allocate a cacheable surface */
+
+    gcvSURF_FLIP           = 0x800, /* The Resolve Target the will been flip resolve from RT */
+
+    gcvSURF_TILE_STATUS_DIRTY  = 0x1000, /* Init tile status to all dirty */
+
+    gcvSURF_LINEAR             = 0x2000,
+
+    gcvSURF_CREATE_AS_TEXTURE  = 0x4000,  /* create it as a texture */
+
+    gcvSURF_PROTECTED_CONTENT  = 0x8000,  /* create it as content protected */
+
+    /* Create it as no compression, valid on when it has tile status. */
+    gcvSURF_NO_COMPRESSION     = 0x40000,
+
+    gcvSURF_CONTIGUOUS         = 0x20000,      /*create it as contiguous */
+
+    gcvSURF_TEXTURE_LINEAR               = gcvSURF_TEXTURE
+                                         | gcvSURF_LINEAR,
+
+    gcvSURF_RENDER_TARGET_LINEAR         = gcvSURF_RENDER_TARGET
+                                         | gcvSURF_LINEAR,
+
+    gcvSURF_RENDER_TARGET_NO_TILE_STATUS = gcvSURF_RENDER_TARGET
+                                         | gcvSURF_NO_TILE_STATUS,
+
+    gcvSURF_RENDER_TARGET_TS_DIRTY = gcvSURF_RENDER_TARGET
+                                         | gcvSURF_TILE_STATUS_DIRTY,
+
+    gcvSURF_DEPTH_NO_TILE_STATUS         = gcvSURF_DEPTH
+                                         | gcvSURF_NO_TILE_STATUS,
+
+    gcvSURF_DEPTH_TS_DIRTY               = gcvSURF_DEPTH
+                                         | gcvSURF_TILE_STATUS_DIRTY,
+
+    /* Supported surface types with no vidmem node. */
+    gcvSURF_BITMAP_NO_VIDMEM             = gcvSURF_BITMAP
+                                         | gcvSURF_NO_VIDMEM,
+
+    gcvSURF_TEXTURE_NO_VIDMEM            = gcvSURF_TEXTURE
+                                         | gcvSURF_NO_VIDMEM,
+
+    /* Cacheable surface types with no vidmem node. */
+    gcvSURF_CACHEABLE_BITMAP_NO_VIDMEM   = gcvSURF_BITMAP_NO_VIDMEM
+                                         | gcvSURF_CACHEABLE,
+
+    gcvSURF_CACHEABLE_BITMAP             = gcvSURF_BITMAP
+                                         | gcvSURF_CACHEABLE,
+
+    gcvSURF_FLIP_BITMAP                  = gcvSURF_BITMAP
+                                         | gcvSURF_FLIP,
+}
+gceSURF_TYPE;
+
+typedef enum _gceSURF_USAGE
+{
+    gcvSURF_USAGE_UNKNOWN,
+    gcvSURF_USAGE_RESOLVE_AFTER_CPU,
+    gcvSURF_USAGE_RESOLVE_AFTER_3D
+}
+gceSURF_USAGE;
+
+typedef enum _gceSURF_COLOR_SPACE
+{
+    gcvSURF_COLOR_SPACE_UNKNOWN,
+    gcvSURF_COLOR_SPACE_LINEAR,
+    gcvSURF_COLOR_SPACE_NONLINEAR,
+}
+gceSURF_COLOR_SPACE;
+
+typedef enum _gceSURF_COLOR_TYPE
+{
+    gcvSURF_COLOR_UNKNOWN = 0,
+    gcvSURF_COLOR_LINEAR        = 0x01,
+    gcvSURF_COLOR_ALPHA_PRE     = 0x02,
+}
+gceSURF_COLOR_TYPE;
+
+/* Rotation. */
+typedef enum _gceSURF_ROTATION
+{
+    gcvSURF_0_DEGREE = 0,
+    gcvSURF_90_DEGREE,
+    gcvSURF_180_DEGREE,
+    gcvSURF_270_DEGREE,
+    gcvSURF_FLIP_X,
+    gcvSURF_FLIP_Y,
+
+    gcvSURF_POST_FLIP_X = 0x40000000,
+    gcvSURF_POST_FLIP_Y = 0x80000000,
+}
+gceSURF_ROTATION;
+
+/* Surface flag */
+typedef enum _gceSURF_FLAG
+{
+    /* None flag */
+    gcvSURF_FLAG_NONE                = 0x0,
+    /* content is preserved after swap */
+    gcvSURF_FLAG_CONTENT_PRESERVED   = 0x1,
+    /* content is updated after swap*/
+    gcvSURF_FLAG_CONTENT_UPDATED     = 0x2,
+    /* content is y inverted */
+    gcvSURF_FLAG_CONTENT_YINVERTED   = 0x4,
+    /* content is protected */
+    gcvSURF_FLAG_CONTENT_PROTECTED   = 0x8,
+    /* surface is contiguous. */
+    gcvSURF_FLAG_CONTIGUOUS          = (1 << 4),
+    /* surface has multiple nodes */
+    gcvSURF_FLAG_MULTI_NODE          = (1 << 5),
+}
+gceSURF_FLAG;
+
+typedef enum _gceMIPMAP_IMAGE_FORMAT
+{
+    gcvUNKNOWN_MIPMAP_IMAGE_FORMAT  = -2
+}
+gceMIPMAP_IMAGE_FORMAT;
+
+/* Surface formats. */
+typedef enum _gceSURF_FORMAT
+{
+    /* Unknown format. */
+    gcvSURF_UNKNOWN             = 0,
+
+    /* Palettized formats. */
+    gcvSURF_INDEX1              = 100,
+    gcvSURF_INDEX4,
+    gcvSURF_INDEX8,
+
+    /* RGB formats. */
+    gcvSURF_A2R2G2B2            = 200,
+    gcvSURF_R3G3B2,
+    gcvSURF_A8R3G3B2,
+    gcvSURF_X4R4G4B4,
+    gcvSURF_A4R4G4B4,
+    gcvSURF_R4G4B4A4,
+    gcvSURF_X1R5G5B5,
+    gcvSURF_A1R5G5B5,
+    gcvSURF_R5G5B5A1,
+    gcvSURF_R5G6B5,
+    gcvSURF_R8G8B8,
+    gcvSURF_X8R8G8B8,
+    gcvSURF_A8R8G8B8,
+    gcvSURF_R8G8B8A8,
+    gcvSURF_G8R8G8B8,
+    gcvSURF_R8G8B8G8,
+    gcvSURF_X2R10G10B10,
+    gcvSURF_A2R10G10B10,
+    gcvSURF_X12R12G12B12,
+    gcvSURF_A12R12G12B12,
+    gcvSURF_X16R16G16B16,
+    gcvSURF_A16R16G16B16,
+    gcvSURF_A32R32G32B32,
+    gcvSURF_R8G8B8X8,
+    gcvSURF_R5G5B5X1,
+    gcvSURF_R4G4B4X4,
+    gcvSURF_X16R16G16B16_2_A8R8G8B8,
+    gcvSURF_A16R16G16B16_2_A8R8G8B8,
+    gcvSURF_A32R32G32B32_2_G32R32F,
+    gcvSURF_A32R32G32B32_4_A8R8G8B8,
+
+    /* BGR formats. */
+    gcvSURF_A4B4G4R4            = 300,
+    gcvSURF_A1B5G5R5,
+    gcvSURF_B5G6R5,
+    gcvSURF_B8G8R8,
+    gcvSURF_B16G16R16,
+    gcvSURF_X8B8G8R8,
+    gcvSURF_A8B8G8R8,
+    gcvSURF_A2B10G10R10,
+    gcvSURF_X16B16G16R16,
+    gcvSURF_A16B16G16R16,
+    gcvSURF_B32G32R32,
+    gcvSURF_X32B32G32R32,
+    gcvSURF_A32B32G32R32,
+    gcvSURF_B4G4R4A4,
+    gcvSURF_B5G5R5A1,
+    gcvSURF_B8G8R8X8,
+    gcvSURF_B8G8R8A8,
+    gcvSURF_X4B4G4R4,
+    gcvSURF_X1B5G5R5,
+    gcvSURF_B4G4R4X4,
+    gcvSURF_B5G5R5X1,
+    gcvSURF_X2B10G10R10,
+    gcvSURF_B8G8R8_SNORM,
+    gcvSURF_X8B8G8R8_SNORM,
+    gcvSURF_A8B8G8R8_SNORM,
+    gcvSURF_A8B12G12R12_2_A8R8G8B8,
+
+    /* Compressed formats. */
+    gcvSURF_DXT1                = 400,
+    gcvSURF_DXT2,
+    gcvSURF_DXT3,
+    gcvSURF_DXT4,
+    gcvSURF_DXT5,
+    gcvSURF_CXV8U8,
+    gcvSURF_ETC1,
+    gcvSURF_R11_EAC,
+    gcvSURF_SIGNED_R11_EAC,
+    gcvSURF_RG11_EAC,
+    gcvSURF_SIGNED_RG11_EAC,
+    gcvSURF_RGB8_ETC2,
+    gcvSURF_SRGB8_ETC2,
+    gcvSURF_RGB8_PUNCHTHROUGH_ALPHA1_ETC2,
+    gcvSURF_SRGB8_PUNCHTHROUGH_ALPHA1_ETC2,
+    gcvSURF_RGBA8_ETC2_EAC,
+    gcvSURF_SRGB8_ALPHA8_ETC2_EAC,
+
+    /* YUV formats. */
+    gcvSURF_YUY2                = 500,
+    gcvSURF_UYVY,
+    gcvSURF_YV12,
+    gcvSURF_I420,
+    gcvSURF_NV12,
+    gcvSURF_NV21,
+    gcvSURF_NV16,
+    gcvSURF_NV61,
+    gcvSURF_YVYU,
+    gcvSURF_VYUY,
+
+    /* Depth formats. */
+    gcvSURF_D16                 = 600,
+    gcvSURF_D24S8,
+    gcvSURF_D32,
+    gcvSURF_D24X8,
+    gcvSURF_D32F,
+    gcvSURF_S8D32F,
+    gcvSURF_S8D32F_1_G32R32F,
+    gcvSURF_S8D32F_2_A8R8G8B8,
+    gcvSURF_D24S8_1_A8R8G8B8,
+    gcvSURF_S8,
+
+    /* Alpha formats. */
+    gcvSURF_A4                  = 700,
+    gcvSURF_A8,
+    gcvSURF_A12,
+    gcvSURF_A16,
+    gcvSURF_A32,
+    gcvSURF_A1,
+
+    /* Luminance formats. */
+    gcvSURF_L4                  = 800,
+    gcvSURF_L8,
+    gcvSURF_L12,
+    gcvSURF_L16,
+    gcvSURF_L32,
+    gcvSURF_L1,
+
+    /* Alpha/Luminance formats. */
+    gcvSURF_A4L4                = 900,
+    gcvSURF_A2L6,
+    gcvSURF_A8L8,
+    gcvSURF_A4L12,
+    gcvSURF_A12L12,
+    gcvSURF_A16L16,
+
+    /* Bump formats. */
+    gcvSURF_L6V5U5              = 1000,
+    gcvSURF_V8U8,
+    gcvSURF_X8L8V8U8,
+    gcvSURF_Q8W8V8U8,
+    gcvSURF_A2W10V10U10,
+    gcvSURF_V16U16,
+    gcvSURF_Q16W16V16U16,
+
+    /* R/RG/RA formats. */
+    gcvSURF_R8                  = 1100,
+    gcvSURF_X8R8,
+    gcvSURF_G8R8,
+    gcvSURF_X8G8R8,
+    gcvSURF_A8R8,
+    gcvSURF_R16,
+    gcvSURF_X16R16,
+    gcvSURF_G16R16,
+    gcvSURF_X16G16R16,
+    gcvSURF_A16R16,
+    gcvSURF_R32,
+    gcvSURF_X32R32,
+    gcvSURF_G32R32,
+    gcvSURF_X32G32R32,
+    gcvSURF_A32R32,
+    gcvSURF_RG16,
+    gcvSURF_R8_SNORM,
+    gcvSURF_G8R8_SNORM,
+
+    gcvSURF_R8_1_X8R8G8B8,
+    gcvSURF_G8R8_1_X8R8G8B8,
+
+    /* Floating point formats. */
+    gcvSURF_R16F                = 1200,
+    gcvSURF_X16R16F,
+    gcvSURF_G16R16F,
+    gcvSURF_X16G16R16F,
+    gcvSURF_B16G16R16F,
+    gcvSURF_X16B16G16R16F,
+    gcvSURF_A16B16G16R16F,
+    gcvSURF_R32F,
+    gcvSURF_X32R32F,
+    gcvSURF_G32R32F,
+    gcvSURF_X32G32R32F,
+    gcvSURF_B32G32R32F,
+    gcvSURF_X32B32G32R32F,
+    gcvSURF_A32B32G32R32F,
+    gcvSURF_A16F,
+    gcvSURF_L16F,
+    gcvSURF_A16L16F,
+    gcvSURF_A16R16F,
+    gcvSURF_A32F,
+    gcvSURF_L32F,
+    gcvSURF_A32L32F,
+    gcvSURF_A32R32F,
+    gcvSURF_E5B9G9R9,
+    gcvSURF_B10G11R11F,
+
+    gcvSURF_X16B16G16R16F_2_A8R8G8B8,
+    gcvSURF_A16B16G16R16F_2_A8R8G8B8,
+    gcvSURF_G32R32F_2_A8R8G8B8,
+    gcvSURF_X32B32G32R32F_2_G32R32F,
+    gcvSURF_A32B32G32R32F_2_G32R32F,
+    gcvSURF_X32B32G32R32F_4_A8R8G8B8,
+    gcvSURF_A32B32G32R32F_4_A8R8G8B8,
+
+    gcvSURF_R16F_1_A4R4G4B4,
+    gcvSURF_G16R16F_1_A8R8G8B8,
+    gcvSURF_B16G16R16F_2_A8R8G8B8,
+
+    gcvSURF_R32F_1_A8R8G8B8,
+    gcvSURF_B32G32R32F_3_A8R8G8B8,
+
+    gcvSURF_B10G11R11F_1_A8R8G8B8,
+
+
+    /* sRGB format. */
+    gcvSURF_SBGR8               = 1400,
+    gcvSURF_A8_SBGR8,
+    gcvSURF_X8_SBGR8,
+
+    /* Integer formats. */
+    gcvSURF_R8I                 = 1500,
+    gcvSURF_R8UI,
+    gcvSURF_R16I,
+    gcvSURF_R16UI,
+    gcvSURF_R32I,
+    gcvSURF_R32UI,
+    gcvSURF_X8R8I,
+    gcvSURF_G8R8I,
+    gcvSURF_X8R8UI,
+    gcvSURF_G8R8UI,
+    gcvSURF_X16R16I,
+    gcvSURF_G16R16I,
+    gcvSURF_X16R16UI,
+    gcvSURF_G16R16UI,
+    gcvSURF_X32R32I,
+    gcvSURF_G32R32I,
+    gcvSURF_X32R32UI,
+    gcvSURF_G32R32UI,
+    gcvSURF_X8G8R8I,
+    gcvSURF_B8G8R8I,
+    gcvSURF_X8G8R8UI,
+    gcvSURF_B8G8R8UI,
+    gcvSURF_X16G16R16I,
+    gcvSURF_B16G16R16I,
+    gcvSURF_X16G16R16UI,
+    gcvSURF_B16G16R16UI,
+    gcvSURF_X32G32R32I,
+    gcvSURF_B32G32R32I,
+    gcvSURF_X32G32R32UI,
+    gcvSURF_B32G32R32UI,
+    gcvSURF_X8B8G8R8I,
+    gcvSURF_A8B8G8R8I,
+    gcvSURF_X8B8G8R8UI,
+    gcvSURF_A8B8G8R8UI,
+    gcvSURF_X16B16G16R16I,
+    gcvSURF_A16B16G16R16I,
+    gcvSURF_X16B16G16R16UI,
+    gcvSURF_A16B16G16R16UI,
+    gcvSURF_X32B32G32R32I,
+    gcvSURF_A32B32G32R32I,
+    gcvSURF_X32B32G32R32UI,
+    gcvSURF_A32B32G32R32UI,
+    gcvSURF_A2B10G10R10UI,
+    gcvSURF_G32R32I_2_A8R8G8B8,
+    gcvSURF_G32R32UI_2_A8R8G8B8,
+    gcvSURF_X16B16G16R16I_2_A8R8G8B8,
+    gcvSURF_A16B16G16R16I_2_A8R8G8B8,
+    gcvSURF_X16B16G16R16UI_2_A8R8G8B8,
+    gcvSURF_A16B16G16R16UI_2_A8R8G8B8,
+    gcvSURF_X32B32G32R32I_2_G32R32I,
+    gcvSURF_A32B32G32R32I_2_G32R32I,
+    gcvSURF_X32B32G32R32I_3_A8R8G8B8,
+    gcvSURF_A32B32G32R32I_4_A8R8G8B8,
+    gcvSURF_X32B32G32R32UI_2_G32R32UI,
+    gcvSURF_A32B32G32R32UI_2_G32R32UI,
+    gcvSURF_X32B32G32R32UI_3_A8R8G8B8,
+    gcvSURF_A32B32G32R32UI_4_A8R8G8B8,
+    gcvSURF_A2B10G10R10UI_1_A8R8G8B8,
+    gcvSURF_A8B8G8R8I_1_A8R8G8B8,
+    gcvSURF_A8B8G8R8UI_1_A8R8G8B8,
+    gcvSURF_R8I_1_A4R4G4B4,
+    gcvSURF_R8UI_1_A4R4G4B4,
+    gcvSURF_R16I_1_A4R4G4B4,
+    gcvSURF_R16UI_1_A4R4G4B4,
+    gcvSURF_R32I_1_A8R8G8B8,
+    gcvSURF_R32UI_1_A8R8G8B8,
+    gcvSURF_X8R8I_1_A4R4G4B4,
+    gcvSURF_X8R8UI_1_A4R4G4B4,
+    gcvSURF_G8R8I_1_A4R4G4B4,
+    gcvSURF_G8R8UI_1_A4R4G4B4,
+    gcvSURF_X16R16I_1_A4R4G4B4,
+    gcvSURF_X16R16UI_1_A4R4G4B4,
+    gcvSURF_G16R16I_1_A8R8G8B8,
+    gcvSURF_G16R16UI_1_A8R8G8B8,
+    gcvSURF_X32R32I_1_A8R8G8B8,
+    gcvSURF_X32R32UI_1_A8R8G8B8,
+    gcvSURF_X8G8R8I_1_A4R4G4B4,
+    gcvSURF_X8G8R8UI_1_A4R4G4B4,
+    gcvSURF_B8G8R8I_1_A8R8G8B8,
+    gcvSURF_B8G8R8UI_1_A8R8G8B8,
+    gcvSURF_B16G16R16I_2_A8R8G8B8,
+    gcvSURF_B16G16R16UI_2_A8R8G8B8,
+    gcvSURF_B32G32R32I_3_A8R8G8B8,
+    gcvSURF_B32G32R32UI_3_A8R8G8B8,
+
+    /* ASTC formats. */
+    gcvSURF_ASTC4x4             = 1600,
+    gcvSURF_ASTC5x4,
+    gcvSURF_ASTC5x5,
+    gcvSURF_ASTC6x5,
+    gcvSURF_ASTC6x6,
+    gcvSURF_ASTC8x5,
+    gcvSURF_ASTC8x6,
+    gcvSURF_ASTC8x8,
+    gcvSURF_ASTC10x5,
+    gcvSURF_ASTC10x6,
+    gcvSURF_ASTC10x8,
+    gcvSURF_ASTC10x10,
+    gcvSURF_ASTC12x10,
+    gcvSURF_ASTC12x12,
+    gcvSURF_ASTC4x4_SRGB,
+    gcvSURF_ASTC5x4_SRGB,
+    gcvSURF_ASTC5x5_SRGB,
+    gcvSURF_ASTC6x5_SRGB,
+    gcvSURF_ASTC6x6_SRGB,
+    gcvSURF_ASTC8x5_SRGB,
+    gcvSURF_ASTC8x6_SRGB,
+    gcvSURF_ASTC8x8_SRGB,
+    gcvSURF_ASTC10x5_SRGB,
+    gcvSURF_ASTC10x6_SRGB,
+    gcvSURF_ASTC10x8_SRGB,
+    gcvSURF_ASTC10x10_SRGB,
+    gcvSURF_ASTC12x10_SRGB,
+    gcvSURF_ASTC12x12_SRGB,
+
+    gcvSURF_FORMAT_COUNT
+}
+gceSURF_FORMAT;
+
+typedef enum _gceSURF_YUV_COLOR_SPACE
+{
+    gcvSURF_ITU_REC601,
+    gcvSURF_ITU_REC709,
+    gcvSURF_ITU_REC2020,
+}
+gceSURF_YUV_COLOR_SPACE;
+
+typedef enum _gceSURF_YUV_CHROMA_SITING
+{
+    gcvSURF_YUV_CHROMA_SITING_0,
+    gcvSURF_YUV_CHROMA_SITING_0_5,
+}
+gceSURF_YUV_CHROMA_SITING;
+
+typedef enum _gceSURF_YUV_SAMPLE_RANGE
+{
+    gcvSURF_YUV_FULL_RANGE,
+    gcvSURF_YUV_NARROW_RANGE,
+}
+gceSURF_YUV_SAMPLE_RANGE;
+
+/* Format modifiers. */
+typedef enum _gceSURF_FORMAT_MODE
+{
+    gcvSURF_FORMAT_OCL = 0x80000000
+}
+gceSURF_FORMAT_MODE;
+
+/* Pixel swizzle modes. */
+typedef enum _gceSURF_SWIZZLE
+{
+    gcvSURF_NOSWIZZLE = 0,
+    gcvSURF_ARGB,
+    gcvSURF_ABGR,
+    gcvSURF_RGBA,
+    gcvSURF_BGRA
+}
+gceSURF_SWIZZLE;
+
+/* Transparency modes. */
+typedef enum _gceSURF_TRANSPARENCY
+{
+    /* Valid only for PE 1.0 */
+    gcvSURF_OPAQUE = 0,
+    gcvSURF_SOURCE_MATCH,
+    gcvSURF_SOURCE_MASK,
+    gcvSURF_PATTERN_MASK,
+}
+gceSURF_TRANSPARENCY;
+
+/* Surface Alignment. */
+typedef enum _gceSURF_ALIGNMENT
+{
+    gcvSURF_FOUR = 0,
+    gcvSURF_SIXTEEN,
+    gcvSURF_SUPER_TILED,
+    gcvSURF_SPLIT_TILED,
+    gcvSURF_SPLIT_SUPER_TILED
+}
+gceSURF_ALIGNMENT;
+
+/* Surface Addressing. */
+typedef enum _gceSURF_ADDRESSING
+{
+    gcvSURF_NO_STRIDE_TILED = 0,
+    gcvSURF_NO_STRIDE_LINEAR,
+    gcvSURF_STRIDE_TILED,
+    gcvSURF_STRIDE_LINEAR
+}
+gceSURF_ADDRESSING;
+
+/* Transparency modes. */
+typedef enum _gce2D_TRANSPARENCY
+{
+    /* Valid only for PE 2.0 */
+    gcv2D_OPAQUE = 0,
+    gcv2D_KEYED,
+    gcv2D_MASKED
+}
+gce2D_TRANSPARENCY;
+
+/* Mono packing modes. */
+typedef enum _gceSURF_MONOPACK
+{
+    gcvSURF_PACKED8 = 0,
+    gcvSURF_PACKED16,
+    gcvSURF_PACKED32,
+    gcvSURF_UNPACKED,
+}
+gceSURF_MONOPACK;
+
+/* Blending modes. */
+typedef enum _gceSURF_BLEND_MODE
+{
+    /* Porter-Duff blending modes.                   */
+    /*                         Fsrc      Fdst        */
+    gcvBLEND_CLEAR = 0,     /* 0         0           */
+    gcvBLEND_SRC,           /* 1         0           */
+    gcvBLEND_DST,           /* 0         1           */
+    gcvBLEND_SRC_OVER_DST,  /* 1         1 - Asrc    */
+    gcvBLEND_DST_OVER_SRC,  /* 1 - Adst  1           */
+    gcvBLEND_SRC_IN_DST,    /* Adst      0           */
+    gcvBLEND_DST_IN_SRC,    /* 0         Asrc        */
+    gcvBLEND_SRC_OUT_DST,   /* 1 - Adst  0           */
+    gcvBLEND_DST_OUT_SRC,   /* 0         1 - Asrc    */
+    gcvBLEND_SRC_ATOP_DST,  /* Adst      1 - Asrc    */
+    gcvBLEND_DST_ATOP_SRC,  /* 1 - Adst  Asrc        */
+    gcvBLEND_SRC_XOR_DST,   /* 1 - Adst  1 - Asrc    */
+
+    /* Special blending modes.                       */
+    gcvBLEND_SET,           /* DST = 1               */
+    gcvBLEND_SUB            /* DST = DST * (1 - SRC) */
+}
+gceSURF_BLEND_MODE;
+
+/* Per-pixel alpha modes. */
+typedef enum _gceSURF_PIXEL_ALPHA_MODE
+{
+    gcvSURF_PIXEL_ALPHA_STRAIGHT = 0,
+    gcvSURF_PIXEL_ALPHA_INVERSED
+}
+gceSURF_PIXEL_ALPHA_MODE;
+
+/* Global alpha modes. */
+typedef enum _gceSURF_GLOBAL_ALPHA_MODE
+{
+    gcvSURF_GLOBAL_ALPHA_OFF = 0,
+    gcvSURF_GLOBAL_ALPHA_ON,
+    gcvSURF_GLOBAL_ALPHA_SCALE
+}
+gceSURF_GLOBAL_ALPHA_MODE;
+
+/* Color component modes for alpha blending. */
+typedef enum _gceSURF_PIXEL_COLOR_MODE
+{
+    gcvSURF_COLOR_STRAIGHT = 0,
+    gcvSURF_COLOR_MULTIPLY
+}
+gceSURF_PIXEL_COLOR_MODE;
+
+/* Color component modes for alpha blending. */
+typedef enum _gce2D_PIXEL_COLOR_MULTIPLY_MODE
+{
+    gcv2D_COLOR_MULTIPLY_DISABLE = 0,
+    gcv2D_COLOR_MULTIPLY_ENABLE
+}
+gce2D_PIXEL_COLOR_MULTIPLY_MODE;
+
+/* Color component modes for alpha blending. */
+typedef enum _gce2D_GLOBAL_COLOR_MULTIPLY_MODE
+{
+    gcv2D_GLOBAL_COLOR_MULTIPLY_DISABLE = 0,
+    gcv2D_GLOBAL_COLOR_MULTIPLY_ALPHA,
+    gcv2D_GLOBAL_COLOR_MULTIPLY_COLOR
+}
+gce2D_GLOBAL_COLOR_MULTIPLY_MODE;
+
+/* Alpha blending factor modes. */
+typedef enum _gceSURF_BLEND_FACTOR_MODE
+{
+    gcvSURF_BLEND_ZERO = 0,
+    gcvSURF_BLEND_ONE,
+    gcvSURF_BLEND_STRAIGHT,
+    gcvSURF_BLEND_INVERSED,
+    gcvSURF_BLEND_COLOR,
+    gcvSURF_BLEND_COLOR_INVERSED,
+    gcvSURF_BLEND_SRC_ALPHA_SATURATED,
+    gcvSURF_BLEND_STRAIGHT_NO_CROSS,
+    gcvSURF_BLEND_INVERSED_NO_CROSS,
+    gcvSURF_BLEND_COLOR_NO_CROSS,
+    gcvSURF_BLEND_COLOR_INVERSED_NO_CROSS,
+    gcvSURF_BLEND_SRC_ALPHA_SATURATED_CROSS
+}
+gceSURF_BLEND_FACTOR_MODE;
+
+/* Alpha blending porter duff rules. */
+typedef enum _gce2D_PORTER_DUFF_RULE
+{
+    gcvPD_CLEAR = 0,
+    gcvPD_SRC,
+    gcvPD_SRC_OVER,
+    gcvPD_DST_OVER,
+    gcvPD_SRC_IN,
+    gcvPD_DST_IN,
+    gcvPD_SRC_OUT,
+    gcvPD_DST_OUT,
+    gcvPD_SRC_ATOP,
+    gcvPD_DST_ATOP,
+    gcvPD_ADD,
+    gcvPD_XOR,
+    gcvPD_DST
+}
+gce2D_PORTER_DUFF_RULE;
+
+/* Alpha blending factor modes. */
+typedef enum _gce2D_YUV_COLOR_MODE
+{
+    gcv2D_YUV_601= 0,
+    gcv2D_YUV_709,
+    gcv2D_YUV_USER_DEFINED,
+    gcv2D_YUV_USER_DEFINED_CLAMP,
+
+    /* Default setting is for src. gcv2D_YUV_DST
+        can be ORed to set dst.
+    */
+    gcv2D_YUV_DST = 0x80000000,
+}
+gce2D_YUV_COLOR_MODE;
+
+typedef enum _gce2D_COMMAND
+{
+    gcv2D_CLEAR = 0,
+    gcv2D_LINE,
+    gcv2D_BLT,
+    gcv2D_STRETCH,
+    gcv2D_HOR_FILTER,
+    gcv2D_VER_FILTER,
+    gcv2D_MULTI_SOURCE_BLT,
+    gcv2D_FILTER_BLT,
+}
+gce2D_COMMAND;
+
+typedef enum _gce2D_TILE_STATUS_CONFIG
+{
+    gcv2D_TSC_DISABLE       = 0,
+    gcv2D_TSC_ENABLE        = 0x00000001,
+    gcv2D_TSC_COMPRESSED    = 0x00000002,
+    gcv2D_TSC_DOWN_SAMPLER  = 0x00000004,
+    gcv2D_TSC_2D_COMPRESSED = 0x00000008,
+    gcv2D_TSC_TPC_COMPRESSED = 0x00000010,
+
+    gcv2D_TSC_DEC_COMPRESSED = 0x00000020,
+    gcv2D_TSC_DEC_TPC        = 0x00000040,
+    gcv2D_TSC_DEC_TPC_COMPRESSED = 0x00000080,
+
+    gcv2D_TSC_DEC_TPC_TILED  = gcv2D_TSC_DEC_COMPRESSED | gcv2D_TSC_DEC_TPC,
+    gcv2D_TSC_DEC_TPC_TILED_COMPRESSED = gcv2D_TSC_DEC_TPC_TILED | gcv2D_TSC_DEC_TPC_COMPRESSED,
+}
+gce2D_TILE_STATUS_CONFIG;
+
+typedef enum _gce2D_QUERY
+{
+    gcv2D_QUERY_RGB_ADDRESS_MIN_ALIGN       = 0,
+    gcv2D_QUERY_RGB_STRIDE_MIN_ALIGN,
+    gcv2D_QUERY_YUV_ADDRESS_MIN_ALIGN,
+    gcv2D_QUERY_YUV_STRIDE_MIN_ALIGN,
+}
+gce2D_QUERY;
+
+typedef enum _gce2D_SUPER_TILE_VERSION
+{
+    gcv2D_SUPER_TILE_VERSION_V1       = 1,
+    gcv2D_SUPER_TILE_VERSION_V2       = 2,
+    gcv2D_SUPER_TILE_VERSION_V3       = 3,
+}
+gce2D_SUPER_TILE_VERSION;
+
+typedef enum _gce2D_STATE
+{
+    gcv2D_STATE_SPECIAL_FILTER_MIRROR_MODE       = 1,
+    gcv2D_STATE_SUPER_TILE_VERSION,
+    gcv2D_STATE_EN_GAMMA,
+    gcv2D_STATE_DE_GAMMA,
+    gcv2D_STATE_MULTI_SRC_BLIT_UNIFIED_DST_RECT,
+    gcv2D_STATE_PROFILE_ENABLE,
+    gcv2D_STATE_XRGB_ENABLE,
+
+    gcv2D_STATE_ARRAY_EN_GAMMA                   = 0x10001,
+    gcv2D_STATE_ARRAY_DE_GAMMA,
+    gcv2D_STATE_ARRAY_CSC_YUV_TO_RGB,
+    gcv2D_STATE_ARRAY_CSC_RGB_TO_YUV,
+
+    gcv2D_STATE_DEC_TPC_NV12_10BIT              = 0x20001,
+    gcv2D_STATE_ARRAY_YUV_SRC_TILE_STATUS_ADDR,
+    gcv2D_STATE_ARRAY_YUV_DST_TILE_STATUS_ADDR,
+}
+gce2D_STATE;
+
+typedef enum _gce2D_STATE_PROFILE
+{
+    gcv2D_STATE_PROFILE_NONE    = 0x0,
+    gcv2D_STATE_PROFILE_COMMAND = 0x1,
+    gcv2D_STATE_PROFILE_SURFACE = 0x2,
+    gcv2D_STATE_PROFILE_ALL     = 0xFFFF,
+}
+gce2D_STATE_PROFILE;
+
+/* Texture object types */
+typedef enum _gceTEXTURE_TYPE
+{
+    gcvTEXTURE_UNKNOWN = 0,
+    gcvTEXTURE_1D,
+    gcvTEXTURE_2D,
+    gcvTEXTURE_3D,
+    gcvTEXTURE_CUBEMAP,
+    gcvTEXTURE_1D_ARRAY,
+    gcvTEXTURE_2D_ARRAY,
+    gcvTEXTURE_EXTERNAL
+}
+gceTEXTURE_TYPE;
+
+
+/* Filter types. */
+typedef enum _gceFILTER_TYPE
+{
+    gcvFILTER_SYNC = 0,
+    gcvFILTER_BLUR,
+    gcvFILTER_USER
+}
+gceFILTER_TYPE;
+
+/* Filter pass types. */
+typedef enum _gceFILTER_PASS_TYPE
+{
+    gcvFILTER_HOR_PASS = 0,
+    gcvFILTER_VER_PASS
+}
+gceFILTER_PASS_TYPE;
+
+/* Endian hints. */
+typedef enum _gceENDIAN_HINT
+{
+    gcvENDIAN_NO_SWAP = 0,
+    gcvENDIAN_SWAP_WORD,
+    gcvENDIAN_SWAP_DWORD
+}
+gceENDIAN_HINT;
+
+/* Tiling modes. */
+typedef enum _gceTILING
+{
+    gcvINVALIDTILED = 0x0,        /* Invalid tiling */
+    /* Tiling basic modes enum'ed in power of 2. */
+    gcvLINEAR      = 0x1,         /* No    tiling. */
+    gcvTILED       = 0x2,         /* 4x4   tiling. */
+    gcvSUPERTILED  = 0x4,         /* 64x64 tiling. */
+    gcvMINORTILED  = 0x8,         /* 2x2   tiling. */
+
+    /* Tiling special layouts. */
+    gcvTILING_SPLIT_BUFFER = 0x100,
+
+    /* Tiling combination layouts. */
+    gcvMULTI_TILED      = gcvTILED
+                        | gcvTILING_SPLIT_BUFFER,
+
+    gcvMULTI_SUPERTILED = gcvSUPERTILED
+                        | gcvTILING_SPLIT_BUFFER,
+}
+gceTILING;
+
+/* 2D pattern type. */
+typedef enum _gce2D_PATTERN
+{
+    gcv2D_PATTERN_SOLID = 0,
+    gcv2D_PATTERN_MONO,
+    gcv2D_PATTERN_COLOR,
+    gcv2D_PATTERN_INVALID
+}
+gce2D_PATTERN;
+
+/* 2D source type. */
+typedef enum _gce2D_SOURCE
+{
+    gcv2D_SOURCE_MASKED = 0,
+    gcv2D_SOURCE_MONO,
+    gcv2D_SOURCE_COLOR,
+    gcv2D_SOURCE_INVALID
+}
+gce2D_SOURCE;
+
+/* Pipes. */
+typedef enum _gcePIPE_SELECT
+{
+    gcvPIPE_INVALID = ~0,
+    gcvPIPE_3D      =  0,
+    gcvPIPE_2D
+}
+gcePIPE_SELECT;
+
+/* Hardware type. */
+typedef enum _gceHARDWARE_TYPE
+{
+    gcvHARDWARE_INVALID = 0x00,
+    gcvHARDWARE_3D      = 0x01,
+    gcvHARDWARE_2D      = 0x02,
+    gcvHARDWARE_VG      = 0x04,
+#if gcdMULTI_GPU_AFFINITY
+    gcvHARDWARE_OCL     = 0x05,
+#endif
+    gcvHARDWARE_3D2D    = gcvHARDWARE_3D | gcvHARDWARE_2D,
+}
+gceHARDWARE_TYPE;
+
+#define gcdCHIP_COUNT               3
+
+typedef enum _gceMMU_MODE
+{
+    gcvMMU_MODE_1K,
+    gcvMMU_MODE_4K,
+} gceMMU_MODE;
+
+/* User signal command codes. */
+typedef enum _gceUSER_SIGNAL_COMMAND_CODES
+{
+    gcvUSER_SIGNAL_CREATE,
+    gcvUSER_SIGNAL_DESTROY,
+    gcvUSER_SIGNAL_SIGNAL,
+    gcvUSER_SIGNAL_WAIT,
+    gcvUSER_SIGNAL_MAP,
+    gcvUSER_SIGNAL_UNMAP,
+}
+gceUSER_SIGNAL_COMMAND_CODES;
+
+/* Sync point command codes. */
+typedef enum _gceSYNC_POINT_COMMAND_CODES
+{
+    gcvSYNC_POINT_CREATE,
+    gcvSYNC_POINT_DESTROY,
+    gcvSYNC_POINT_SIGNAL,
+}
+gceSYNC_POINT_COMMAND_CODES;
+
+/* Shared buffer command codes. */
+typedef enum _gceSHBUF_COMMAND_CODES
+{
+    gcvSHBUF_CREATE,
+    gcvSHBUF_DESTROY,
+    gcvSHBUF_MAP,
+    gcvSHBUF_WRITE,
+    gcvSHBUF_READ,
+}
+gceSHBUF_COMMAND_CODES;
+
+/* Event locations. */
+typedef enum _gceKERNEL_WHERE
+{
+    gcvKERNEL_COMMAND,
+    gcvKERNEL_VERTEX,
+    gcvKERNEL_TRIANGLE,
+    gcvKERNEL_TEXTURE,
+    gcvKERNEL_PIXEL,
+}
+gceKERNEL_WHERE;
+
+
+/* gcdDUMP message type. */
+typedef enum _gceDEBUG_MESSAGE_TYPE
+{
+    gcvMESSAGE_TEXT,
+    gcvMESSAGE_DUMP
+}
+gceDEBUG_MESSAGE_TYPE;
+
+/* Shading format. */
+typedef enum _gceSHADING
+{
+    gcvSHADING_SMOOTH,
+    gcvSHADING_FLAT_D3D,
+    gcvSHADING_FLAT_OPENGL,
+}
+gceSHADING;
+
+/* Culling modes. */
+typedef enum _gceCULL
+{
+    gcvCULL_NONE,
+    gcvCULL_CCW,
+    gcvCULL_CW,
+}
+gceCULL;
+
+/* Fill modes. */
+typedef enum _gceFILL
+{
+    gcvFILL_POINT,
+    gcvFILL_WIRE_FRAME,
+    gcvFILL_SOLID,
+}
+gceFILL;
+
+/* Compare modes. */
+typedef enum _gceCOMPARE
+{
+    gcvCOMPARE_INVALID = 0,
+    gcvCOMPARE_NEVER,
+    gcvCOMPARE_NOT_EQUAL,
+    gcvCOMPARE_LESS,
+    gcvCOMPARE_LESS_OR_EQUAL,
+    gcvCOMPARE_EQUAL,
+    gcvCOMPARE_GREATER,
+    gcvCOMPARE_GREATER_OR_EQUAL,
+    gcvCOMPARE_ALWAYS,
+}
+gceCOMPARE;
+
+/* Stencil modes. */
+typedef enum _gceSTENCIL_MODE
+{
+    gcvSTENCIL_NONE,
+    gcvSTENCIL_SINGLE_SIDED,
+    gcvSTENCIL_DOUBLE_SIDED,
+}
+gceSTENCIL_MODE;
+
+/* Stencil operations. */
+typedef enum _gceSTENCIL_OPERATION
+{
+    gcvSTENCIL_KEEP,
+    gcvSTENCIL_REPLACE,
+    gcvSTENCIL_ZERO,
+    gcvSTENCIL_INVERT,
+    gcvSTENCIL_INCREMENT,
+    gcvSTENCIL_DECREMENT,
+    gcvSTENCIL_INCREMENT_SATURATE,
+    gcvSTENCIL_DECREMENT_SATURATE,
+    gcvSTENCIL_OPERATION_INVALID = -1
+}
+gceSTENCIL_OPERATION;
+
+/* Stencil selection. */
+typedef enum _gceSTENCIL_WHERE
+{
+    gcvSTENCIL_FRONT,
+    gcvSTENCIL_BACK,
+}
+gceSTENCIL_WHERE;
+
+/* Texture addressing selection. */
+typedef enum _gceTEXTURE_WHICH
+{
+    gcvTEXTURE_S,
+    gcvTEXTURE_T,
+    gcvTEXTURE_R,
+}
+gceTEXTURE_WHICH;
+
+/* Texture addressing modes. */
+typedef enum _gceTEXTURE_ADDRESSING
+{
+    gcvTEXTURE_INVALID    = 0,
+    gcvTEXTURE_CLAMP,
+    gcvTEXTURE_WRAP,
+    gcvTEXTURE_MIRROR,
+    gcvTEXTURE_BORDER,
+    gcvTEXTURE_MIRROR_ONCE,
+}
+gceTEXTURE_ADDRESSING;
+
+/* Texture filters. */
+typedef enum _gceTEXTURE_FILTER
+{
+    gcvTEXTURE_NONE,
+    gcvTEXTURE_POINT,
+    gcvTEXTURE_LINEAR,
+    gcvTEXTURE_ANISOTROPIC,
+}
+gceTEXTURE_FILTER;
+
+typedef enum _gceTEXTURE_COMPONENT
+{
+    gcvTEXTURE_COMPONENT_R,
+    gcvTEXTURE_COMPONENT_G,
+    gcvTEXTURE_COMPONENT_B,
+    gcvTEXTURE_COMPONENT_A,
+
+    gcvTEXTURE_COMPONENT_NUM,
+} gceTEXTURE_COMPONENT;
+
+/* Texture swizzle modes. */
+typedef enum _gceTEXTURE_SWIZZLE
+{
+    gcvTEXTURE_SWIZZLE_R = 0,
+    gcvTEXTURE_SWIZZLE_G,
+    gcvTEXTURE_SWIZZLE_B,
+    gcvTEXTURE_SWIZZLE_A,
+    gcvTEXTURE_SWIZZLE_0,
+    gcvTEXTURE_SWIZZLE_1,
+
+    gcvTEXTURE_SWIZZLE_INVALID,
+} gceTEXTURE_SWIZZLE;
+
+typedef enum _gceTEXTURE_COMPARE_MODE
+{
+    gcvTEXTURE_COMPARE_MODE_INVALID  = 0,
+    gcvTEXTURE_COMPARE_MODE_NONE,
+    gcvTEXTURE_COMPARE_MODE_REF,
+} gceTEXTURE_COMPARE_MODE;
+
+/* Pixel output swizzle modes. */
+typedef enum _gcePIXEL_SWIZZLE
+{
+    gcvPIXEL_SWIZZLE_R = gcvTEXTURE_SWIZZLE_R,
+    gcvPIXEL_SWIZZLE_G = gcvTEXTURE_SWIZZLE_G,
+    gcvPIXEL_SWIZZLE_B = gcvTEXTURE_SWIZZLE_B,
+    gcvPIXEL_SWIZZLE_A = gcvTEXTURE_SWIZZLE_A,
+
+    gcvPIXEL_SWIZZLE_INVALID,
+} gcePIXEL_SWIZZLE;
+
+/* Primitive types. */
+typedef enum _gcePRIMITIVE
+{
+    gcvPRIMITIVE_POINT_LIST,
+    gcvPRIMITIVE_LINE_LIST,
+    gcvPRIMITIVE_LINE_STRIP,
+    gcvPRIMITIVE_LINE_LOOP,
+    gcvPRIMITIVE_TRIANGLE_LIST,
+    gcvPRIMITIVE_TRIANGLE_STRIP,
+    gcvPRIMITIVE_TRIANGLE_FAN,
+    gcvPRIMITIVE_RECTANGLE,
+}
+gcePRIMITIVE;
+
+/* Index types. */
+typedef enum _gceINDEX_TYPE
+{
+    gcvINDEX_8,
+    gcvINDEX_16,
+    gcvINDEX_32,
+}
+gceINDEX_TYPE;
+
+/* Multi GPU rendering modes. */
+typedef enum _gceMULTI_GPU_RENDERING_MODE
+{
+    gcvMULTI_GPU_RENDERING_MODE_OFF,
+    gcvMULTI_GPU_RENDERING_MODE_SPLIT_WIDTH,
+    gcvMULTI_GPU_RENDERING_MODE_SPLIT_HEIGHT,
+    gcvMULTI_GPU_RENDERING_MODE_INTERLEAVED_64x64,
+    gcvMULTI_GPU_RENDERING_MODE_INTERLEAVED_128x64,
+    gcvMULTI_GPU_RENDERING_MODE_INTERLEAVED_128x128
+}
+gceMULTI_GPU_RENDERING_MODE;
+
+typedef enum _gceCORE_3D_MASK
+{
+    gcvCORE_3D_0_MASK   = (1 << 0),
+    gcvCORE_3D_1_MASK   = (1 << 1),
+
+    gcvCORE_3D_ALL_MASK = (0xFFFF)
+}
+gceCORE_3D_MASK;
+
+typedef enum _gceCORE_3D_ID
+{
+    gcvCORE_3D_0_ID       = 0,
+    gcvCORE_3D_1_ID       = 1,
+
+    gcvCORE_3D_ID_INVALID = ~0UL
+}
+gceCORE_3D_ID;
+
+typedef enum _gceMULTI_GPU_MODE
+{
+    gcvMULTI_GPU_MODE_COMBINED    = 0,
+    gcvMULTI_GPU_MODE_INDEPENDENT = 1
+}
+gceMULTI_GPU_MODE;
+
+typedef enum _gceMACHINECODE
+{
+    gcvMACHINECODE_ANTUTU0 = 0x0,
+
+    gcvMACHINECODE_GLB27_RELEASE_0,
+
+    gcvMACHINECODE_GLB25_RELEASE_0,
+    gcvMACHINECODE_GLB25_RELEASE_1,
+    gcvMACHINECODE_GLB25_RELEASE_2,
+
+    /* keep it as the last enum */
+    gcvMACHINECODE_COUNT
+}
+gceMACHINECODE;
+
+typedef enum _gceUNIFORMCVT
+{
+    gcvUNIFORMCVT_NONE = 0,
+    gcvUNIFORMCVT_TO_BOOL,
+    gcvUNIFORMCVT_TO_FLOAT,
+} gceUNIFORMCVT;
+
+typedef enum _gceHAL_ARG_VERSION
+{
+    gcvHAL_ARG_VERSION_V1 = 0x0,
+}
+gceHAL_ARG_VERSION;
+
+
+typedef enum _gceCMDBUF_TYPE
+{
+    /* Contiguous command buffer. */
+    gcvCMDBUF_CONTIGUOUS,
+    /* Virtual command buffer. */
+    gcvCMDBUF_VIRTUAL,
+    /* Command buffer allocated from reserved memory. */
+    gcvCMDBUF_RESERVED,
+}
+gceCMDBUF_SOURCE;
+
+typedef enum _gceCHIP_FALG
+{
+    gcvCHIP_FLAG_MSAA_COHERENCEY_ECO_FIX = 1 << 0,
+    gcvCHIP_FLAG_GC2000_R2               = 1 << 1,
+}
+gceCHIP_FLAG;
+
+/*
+* Bit of a requirment is 1 means requirement is a must, 0 means requirement can
+* be ignored.
+*/
+#define gcvALLOC_FLAG_CONTIGUOUS_BIT        0
+#define gcvALLOC_FLAG_CACHEABLE_BIT         1
+#define gcvALLOC_FLAG_SECURITY_BIT          2
+#define gcvALLOC_FLAG_NON_CONTIGUOUS_BIT    3
+#define gcvALLOC_FLAG_MEMLIMIT_BIT          4
+#define gcvALLOC_FLAG_DMABUF_BIT            5
+#define gcvALLOC_FLAG_USERMEMORY_BIT        6
+
+/* No special needs. */
+#define gcvALLOC_FLAG_NONE              (0)
+/* Physical contiguous. */
+#define gcvALLOC_FLAG_CONTIGUOUS        (1 << gcvALLOC_FLAG_CONTIGUOUS_BIT)
+/* Can be remapped as cacheable. */
+#define gcvALLOC_FLAG_CACHEABLE         (1 << gcvALLOC_FLAG_CACHEABLE_BIT)
+/* Secure buffer. */
+#define gcvALLOC_FLAG_SECURITY          (1 << gcvALLOC_FLAG_SECURITY_BIT)
+/* Physical non contiguous. */
+#define gcvALLOC_FLAG_NON_CONTIGUOUS    (1 << gcvALLOC_FLAG_NON_CONTIGUOUS_BIT)
+
+#define gcvALLOC_FLAG_MEMLIMIT          (1 << gcvALLOC_FLAG_MEMLIMIT_BIT)
+
+/* Import DMABUF. */
+#define gcvALLOC_FLAG_DMABUF            (1 << gcvALLOC_FLAG_DMABUF_BIT)
+/* Import USERMEMORY. */
+#define gcvALLOC_FLAG_USERMEMORY        (1 << gcvALLOC_FLAG_USERMEMORY_BIT)
+
+/* GL_VIV internal usage */
+#ifndef GL_MAP_BUFFER_OBJ_VIV
+#define GL_MAP_BUFFER_OBJ_VIV       0x10000
+#endif
+
+/* Command buffer usage. */
+#define gcvCOMMAND_2D   (1 << 0)
+#define gcvCOMMAND_3D   (1 << 1)
+
+/******************************************************************************\
+****************************** Object Declarations *****************************
+\******************************************************************************/
+
+typedef struct _gckCONTEXT          * gckCONTEXT;
+typedef struct _gcoCMDBUF           * gcoCMDBUF;
+
+typedef struct _gcsSTATE_DELTA      * gcsSTATE_DELTA_PTR;
+typedef struct _gcsQUEUE            * gcsQUEUE_PTR;
+typedef struct _gcoQUEUE            * gcoQUEUE;
+typedef struct _gcsHAL_INTERFACE    * gcsHAL_INTERFACE_PTR;
+typedef struct _gcs2D_PROFILE       * gcs2D_PROFILE_PTR;
+
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* __gc_hal_enum_h_ */
diff --git a/src/hal/kernel/inc/gc_hal_kernel_buffer.h b/src/hal/kernel/inc/gc_hal_kernel_buffer.h
new file mode 100755
index 0000000..8b71fc1
--- /dev/null
+++ b/src/hal/kernel/inc/gc_hal_kernel_buffer.h
@@ -0,0 +1,259 @@
+/****************************************************************************
+*
+*    The MIT License (MIT)
+*
+*    Copyright (c) 2014 Vivante Corporation
+*
+*    Permission is hereby granted, free of charge, to any person obtaining a
+*    copy of this software and associated documentation files (the "Software"),
+*    to deal in the Software without restriction, including without limitation
+*    the rights to use, copy, modify, merge, publish, distribute, sublicense,
+*    and/or sell copies of the Software, and to permit persons to whom the
+*    Software is furnished to do so, subject to the following conditions:
+*
+*    The above copyright notice and this permission notice shall be included in
+*    all copies or substantial portions of the Software.
+*
+*    THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+*    IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+*    FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+*    AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+*    LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+*    FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+*    DEALINGS IN THE SOFTWARE.
+*
+*****************************************************************************
+*
+*    The GPL License (GPL)
+*
+*    Copyright (C) 2014  Vivante Corporation
+*
+*    This program is free software; you can redistribute it and/or
+*    modify it under the terms of the GNU General Public License
+*    as published by the Free Software Foundation; either version 2
+*    of the License, or (at your option) any later version.
+*
+*    This program is distributed in the hope that it will be useful,
+*    but WITHOUT ANY WARRANTY; without even the implied warranty of
+*    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+*    GNU General Public License for more details.
+*
+*    You should have received a copy of the GNU General Public License
+*    along with this program; if not, write to the Free Software Foundation,
+*    Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+*
+*****************************************************************************
+*
+*    Note: This software is released under dual MIT and GPL licenses. A
+*    recipient may use this file under the terms of either the MIT license or
+*    GPL License. If you wish to use only one license not the other, you can
+*    indicate your decision by deleting one of the above license notices in your
+*    version of this file.
+*
+*****************************************************************************/
+
+
+#ifndef __gc_hal_kernel_buffer_h_
+#define __gc_hal_kernel_buffer_h_
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/******************************************************************************\
+************************ Command Buffer and Event Objects **********************
+\******************************************************************************/
+
+/* The number of context buffers per user. */
+#define gcdCONTEXT_BUFFER_COUNT 2
+
+/* State delta record. */
+typedef struct _gcsSTATE_DELTA_RECORD * gcsSTATE_DELTA_RECORD_PTR;
+typedef struct _gcsSTATE_DELTA_RECORD
+{
+    /* State address. */
+    gctUINT                     address;
+
+    /* State mask. */
+    gctUINT32                   mask;
+
+    /* State data. */
+    gctUINT32                   data;
+}
+gcsSTATE_DELTA_RECORD;
+
+/* State delta. */
+typedef struct _gcsSTATE_DELTA
+{
+    /* For debugging: the number of delta in the order of creation. */
+#if gcmIS_DEBUG(gcdDEBUG_CODE)
+    gctUINT                     num;
+#endif
+
+    /* Main state delta ID. Every time state delta structure gets reinitialized,
+       main ID is incremented. If main state ID overflows, all map entry IDs get
+       reinitialized to make sure there is no potential erroneous match after
+       the overflow.*/
+    gctUINT                     id;
+
+    /* The number of contexts pending modification by the delta. */
+    gctINT                      refCount;
+
+    /* Vertex element count for the delta buffer. */
+    gctUINT                     elementCount;
+
+    /* Number of states currently stored in the record array. */
+    gctUINT                     recordCount;
+
+    /* Record array; holds all modified states in gcsSTATE_DELTA_RECORD. */
+    gctUINT64                   recordArray;
+
+    /* Map entry ID is used for map entry validation. If map entry ID does not
+       match the main state delta ID, the entry and the corresponding state are
+       considered not in use. */
+    gctUINT64                   mapEntryID;
+    gctUINT                     mapEntryIDSize;
+
+    /* If the map entry ID matches the main state delta ID, index points to
+       the state record in the record array. */
+    gctUINT64                   mapEntryIndex;
+
+    /* Previous and next state deltas in gcsSTATE_DELTA. */
+    gctUINT64                   prev;
+    gctUINT64                   next;
+}
+gcsSTATE_DELTA;
+
+/* Command buffer patch record. */
+struct _gcsPATCH
+{
+    /* Pointer within the buffer. */
+    gctUINT32_PTR               pointer;
+
+    /* 32-bit data to write at the specified offset. */
+    gctUINT32                   data;
+};
+
+/* List of patches for the command buffer. */
+struct _gcsPATCH_LIST
+{
+    /* Array of patch records. */
+    struct _gcsPATCH            patch[1024];
+
+    /* Number of patches in the array. */
+    gctUINT                     count;
+
+    /* Next item in the list. */
+    struct _gcsPATCH_LIST       *next;
+};
+
+/* Command buffer object. */
+struct _gcoCMDBUF
+{
+    /* The object. */
+    gcsOBJECT                   object;
+
+    /* Commit count. */
+    gctUINT64                   commitCount;
+
+    /* Command buffer entry and exit pipes. */
+    gcePIPE_SELECT              entryPipe;
+    gcePIPE_SELECT              exitPipe;
+
+    /* Feature usage flags. */
+    gctBOOL                     using2D;
+    gctBOOL                     using3D;
+    gctBOOL                     usingFilterBlit;
+    gctBOOL                     usingPalette;
+
+    /* Physical address of command buffer. Just a name. */
+    gctUINT32                   physical;
+
+    /* Logical address of command buffer. */
+    gctUINT64                   logical;
+
+    /* Number of bytes in command buffer. */
+    gctUINT32                   bytes;
+
+    /* Start offset into the command buffer. */
+    gctUINT32                   startOffset;
+
+    /* Current offset into the command buffer. */
+    gctUINT32                   offset;
+
+    /* Number of free bytes in command buffer. */
+    gctUINT32                   free;
+
+    /* Location of the last reserved area. */
+    gctUINT64                   lastReserve;
+    gctUINT32                   lastOffset;
+
+#if gcdSECURE_USER
+    /* Hint array for the current command buffer. */
+    gctUINT                     hintArraySize;
+    gctUINT64                   hintArray;
+    gctUINT64                   hintArrayTail;
+#endif
+
+#if gcmIS_DEBUG(gcdDEBUG_CODE)
+    /* Last load state command location and hardware address. */
+    gctUINT64                   lastLoadStatePtr;
+    gctUINT32                   lastLoadStateAddress;
+    gctUINT32                   lastLoadStateCount;
+#endif
+
+    /* Completion signal. */
+    gctSIGNAL                   signal;
+
+    /* List of patches. */
+    struct _gcsPATCH_LIST       *patchHead;
+    struct _gcsPATCH_LIST       *patchTail;
+
+    /* Link to the siblings. */
+    gcoCMDBUF                   prev;
+    gcoCMDBUF                   next;
+};
+
+typedef struct _gcsQUEUE
+{
+    /* Pointer to next gcsQUEUE structure in gcsQUEUE. */
+    gctUINT64                   next;
+
+    /* Event information. */
+    gcsHAL_INTERFACE            iface;
+}
+gcsQUEUE;
+
+/* Event queue. */
+struct _gcoQUEUE
+{
+    /* The object. */
+    gcsOBJECT                   object;
+
+    /* Pointer to current event queue. */
+    gcsQUEUE_PTR                head;
+    gcsQUEUE_PTR                tail;
+
+    /* chunks of the records. */
+    gctPOINTER                  chunks;
+
+    /* List of free records. */
+    gcsQUEUE_PTR                freeList;
+
+    #define gcdIN_QUEUE_RECORD_LIMIT 16
+    /* Number of records currently in queue */
+    gctUINT32                   recordCount;
+};
+
+struct _gcsTEMPCMDBUF
+{
+    gctUINT32 currentByteSize;
+    gctPOINTER buffer;
+    gctBOOL  inUse;
+};
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* __gc_hal_kernel_buffer_h_ */
diff --git a/src/hal/kernel/inc/gc_hal_mem.h b/src/hal/kernel/inc/gc_hal_mem.h
new file mode 100755
index 0000000..8ad3426
--- /dev/null
+++ b/src/hal/kernel/inc/gc_hal_mem.h
@@ -0,0 +1,62 @@
+/****************************************************************************
+*
+*    The MIT License (MIT)
+*
+*    Copyright (c) 2014 Vivante Corporation
+*
+*    Permission is hereby granted, free of charge, to any person obtaining a
+*    copy of this software and associated documentation files (the "Software"),
+*    to deal in the Software without restriction, including without limitation
+*    the rights to use, copy, modify, merge, publish, distribute, sublicense,
+*    and/or sell copies of the Software, and to permit persons to whom the
+*    Software is furnished to do so, subject to the following conditions:
+*
+*    The above copyright notice and this permission notice shall be included in
+*    all copies or substantial portions of the Software.
+*
+*    THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+*    IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+*    FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+*    AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+*    LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+*    FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+*    DEALINGS IN THE SOFTWARE.
+*
+*****************************************************************************
+*
+*    The GPL License (GPL)
+*
+*    Copyright (C) 2014  Vivante Corporation
+*
+*    This program is free software; you can redistribute it and/or
+*    modify it under the terms of the GNU General Public License
+*    as published by the Free Software Foundation; either version 2
+*    of the License, or (at your option) any later version.
+*
+*    This program is distributed in the hope that it will be useful,
+*    but WITHOUT ANY WARRANTY; without even the implied warranty of
+*    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+*    GNU General Public License for more details.
+*
+*    You should have received a copy of the GNU General Public License
+*    along with this program; if not, write to the Free Software Foundation,
+*    Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+*
+*****************************************************************************
+*
+*    Note: This software is released under dual MIT and GPL licenses. A
+*    recipient may use this file under the terms of either the MIT license or
+*    GPL License. If you wish to use only one license not the other, you can
+*    indicate your decision by deleting one of the above license notices in your
+*    version of this file.
+*
+*****************************************************************************/
+
+
+/*
+**    Include file for the local memory management.
+*/
+
+#ifndef __gc_hal_mem_h_
+#define __gc_hal_mem_h_
+#endif /* __gc_hal_mem_h_ */
diff --git a/src/hal/kernel/inc/gc_hal_options.h b/src/hal/kernel/inc/gc_hal_options.h
new file mode 100755
index 0000000..6ad0aec
--- /dev/null
+++ b/src/hal/kernel/inc/gc_hal_options.h
@@ -0,0 +1,1329 @@
+/****************************************************************************
+*
+*    The MIT License (MIT)
+*
+*    Copyright (c) 2014 Vivante Corporation
+*
+*    Permission is hereby granted, free of charge, to any person obtaining a
+*    copy of this software and associated documentation files (the "Software"),
+*    to deal in the Software without restriction, including without limitation
+*    the rights to use, copy, modify, merge, publish, distribute, sublicense,
+*    and/or sell copies of the Software, and to permit persons to whom the
+*    Software is furnished to do so, subject to the following conditions:
+*
+*    The above copyright notice and this permission notice shall be included in
+*    all copies or substantial portions of the Software.
+*
+*    THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+*    IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+*    FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+*    AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+*    LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+*    FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+*    DEALINGS IN THE SOFTWARE.
+*
+*****************************************************************************
+*
+*    The GPL License (GPL)
+*
+*    Copyright (C) 2014  Vivante Corporation
+*
+*    This program is free software; you can redistribute it and/or
+*    modify it under the terms of the GNU General Public License
+*    as published by the Free Software Foundation; either version 2
+*    of the License, or (at your option) any later version.
+*
+*    This program is distributed in the hope that it will be useful,
+*    but WITHOUT ANY WARRANTY; without even the implied warranty of
+*    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+*    GNU General Public License for more details.
+*
+*    You should have received a copy of the GNU General Public License
+*    along with this program; if not, write to the Free Software Foundation,
+*    Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+*
+*****************************************************************************
+*
+*    Note: This software is released under dual MIT and GPL licenses. A
+*    recipient may use this file under the terms of either the MIT license or
+*    GPL License. If you wish to use only one license not the other, you can
+*    indicate your decision by deleting one of the above license notices in your
+*    version of this file.
+*
+*****************************************************************************/
+
+
+#ifndef __gc_hal_options_h_
+#define __gc_hal_options_h_
+
+/*
+    gcdSECURITY
+
+*/
+#ifndef gcdSECURITY
+#   define gcdSECURITY                          0
+#endif
+
+/*
+    gcdPRINT_VERSION
+
+        Print HAL version.
+*/
+#ifndef gcdPRINT_VERSION
+#   define gcdPRINT_VERSION                     0
+#endif
+
+/*
+    USE_NEW_LINUX_SIGNAL
+
+        This define enables the Linux kernel signaling between kernel and user.
+*/
+#ifndef USE_NEW_LINUX_SIGNAL
+#   define USE_NEW_LINUX_SIGNAL                 0
+#endif
+
+/*
+    VIVANTE_PROFILER
+
+        This define enables the profiler.
+*/
+#ifndef VIVANTE_PROFILER
+#   define VIVANTE_PROFILER                     1
+#endif
+
+/*
+    VIVANTE_PROFILER_CONTEXT
+
+        This define enables the profiler according each context.
+*/
+#ifndef VIVANTE_PROFILER_CONTEXT
+#   define VIVANTE_PROFILER_CONTEXT             1
+#endif
+
+#ifndef VIVANTE_PROFILER_PERDRAW
+#   define VIVANTE_PROFILER_PERDRAW             0
+#endif
+
+#ifndef VIVANTE_PROFILER_NEW
+#   define VIVANTE_PROFILER_NEW                 0
+#endif
+
+#ifndef VIVANTE_PROFILER_PM
+#   define VIVANTE_PROFILER_PM                  1
+#endif
+/*
+    gcdUSE_VG
+
+        Enable VG HAL layer (only for GC350).
+*/
+#ifndef gcdUSE_VG
+#   define gcdUSE_VG                            0
+#endif
+
+/*
+    USE_SW_FB
+
+        Set to 1 if the frame buffer memory cannot be accessed by the GPU.
+*/
+#ifndef USE_SW_FB
+#   define USE_SW_FB                            0
+#endif
+
+/*
+    PROFILE_HAL_COUNTERS
+
+        This define enables HAL counter profiling support.  HW and SHADER
+        counter profiling depends on this.
+*/
+#ifndef PROFILE_HAL_COUNTERS
+#   define PROFILE_HAL_COUNTERS                 1
+#endif
+
+/*
+    PROFILE_HW_COUNTERS
+
+        This define enables HW counter profiling support.
+*/
+#ifndef PROFILE_HW_COUNTERS
+#   define PROFILE_HW_COUNTERS                  1
+#endif
+
+/*
+    PROFILE_SHADER_COUNTERS
+
+        This define enables SHADER counter profiling support.
+*/
+#ifndef PROFILE_SHADER_COUNTERS
+#   define PROFILE_SHADER_COUNTERS              1
+#endif
+
+/*
+    COMMAND_PROCESSOR_VERSION
+
+        The version of the command buffer and task manager.
+*/
+#define COMMAND_PROCESSOR_VERSION               1
+
+/*
+    gcdDUMP_KEY
+
+        Set this to a string that appears in 'cat /proc/<pid>/cmdline'. E.g. 'camera'.
+        HAL will create dumps for the processes matching this key.
+*/
+#ifndef gcdDUMP_KEY
+#   define gcdDUMP_KEY                          "process"
+#endif
+
+/*
+    gcdDUMP_PATH
+
+        The dump file location. Some processes cannot write to the sdcard.
+        Try apps' data dir, e.g. /data/data/com.android.launcher
+*/
+#ifndef gcdDUMP_PATH
+#if defined(ANDROID)
+#   define gcdDUMP_PATH                         "/mnt/sdcard/"
+#else
+#   define gcdDUMP_PATH                         "./"
+#endif
+#endif
+
+/*
+    gcdDUMP
+
+        When set to 1, a dump of all states and memory uploads, as well as other
+        hardware related execution will be printed to the debug console.  This
+        data can be used for playing back applications.
+*/
+#ifndef gcdDUMP
+#   define gcdDUMP                              0
+#endif
+
+/*
+    gcdDUMP_API
+
+        When set to 1, a high level dump of the EGL and GL/VG APs's are
+        captured.
+*/
+#ifndef gcdDUMP_API
+#   define gcdDUMP_API                          0
+#endif
+
+
+
+/*
+    gcdDEBUG_OPTION
+        When set to 1, the debug options are enabled. We must set other MACRO to enable
+        sub case.
+*/
+#ifndef gcdDEBUG_OPTION
+#   define gcdDEBUG_OPTION                      0
+
+#if gcdDEBUG_OPTION
+/*
+    gcdDEBUG_OPTION_KEY
+        The process name of debug application.
+*/
+#ifndef gcdDEBUG_OPTION_KEY
+#          define gcdDEBUG_OPTION_KEY                           "process"
+#       endif
+/*
+    gcdDEBUG_OPTION_NO_GL_DRAWS
+        When set to 1, all glDrawArrays and glDrawElements will be skip.
+*/
+#ifndef gcdDEBUG_OPTION_NO_GL_DRAWS
+#           define gcdDEBUG_OPTION_NO_GL_DRAWS                  0
+#       endif
+/*
+    gcdDEBUG_OPTION_NO_DRAW_PRIMITIVES
+        When set to 1, all DrawPrimitives will be skip.
+*/
+#ifndef gcdDEBUG_OPTION_NO_DRAW_PRIMITIVES
+#           define gcdDEBUG_OPTION_NO_DRAW_PRIMITIVES           0
+#       endif
+/*
+    gcdDEBUG_OPTION_SKIP_SWAP
+        When set to 1, just one out of gcdDEBUG_OPTION_SKIP_FRAMES(such as 1/10) eglSwapBuffers will be resolve,
+        others skip.
+*/
+#ifndef gcdDEBUG_OPTION_SKIP_SWAP
+#           define gcdDEBUG_OPTION_SKIP_SWAP                    0
+#           define gcdDEBUG_OPTION_SKIP_FRAMES                  10
+#       endif
+/*
+    gcdDEBUG_OPTION_FORCE_16BIT_RENDER_TARGET
+        When set to 1, the format of render target will force to RGB565.
+*/
+#ifndef gcdDEBUG_OPTION_FORCE_16BIT_RENDER_TARGET
+#           define gcdDEBUG_OPTION_FORCE_16BIT_RENDER_TARGET    0
+#       endif
+/*
+    gcdDEBUG_OPTION_NONE_TEXTURE
+        When set to 1, the type of texture will be set to AQ_TEXTURE_SAMPLE_MODE_TYPE_NONE.
+*/
+#ifndef gcdDEBUG_OPTION_NONE_TEXTURE
+#           define gcdDEBUG_OPTION_NONE_TEXTURE                 0
+#       endif
+/*
+    gcdDEBUG_OPTION_NONE_DEPTH
+        When set to 1, the depth format of surface will be set to gcvSURF_UNKNOWN.
+*/
+#ifndef gcdDEBUG_OPTION_NONE_DEPTH
+#           define gcdDEBUG_OPTION_NONE_DEPTH                   0
+#       endif
+
+#   endif
+#endif
+
+/*
+    gcdDUMP_SWAP_PER_DRAW
+
+        When set to 1, dump swap command for every single draw to make simulation comparison happy.
+        Only valid for ES3 driver for now.
+*/
+#ifndef gcdDUMP_SWAP_PER_DRAW
+#   define gcdDUMP_SWAP_PER_DRAW                0
+#endif
+
+/*
+    gcdDUMP_FRAMERATE
+        When set to a value other than zero, averaqe frame rate will be dumped.
+        The value set is the starting frame that the average will be calculated.
+        This is needed because sometimes first few frames are too slow to be included
+        in the average. Frame count starts from 1.
+*/
+#ifndef gcdDUMP_FRAMERATE
+#   define gcdDUMP_FRAMERATE                    0
+#endif
+
+/*
+    gcdENABLE_FSCALE_VAL_ADJUST
+        When non-zero, FSCALE_VAL when gcvPOWER_ON can be adjusted externally.
+ */
+#ifndef gcdENABLE_FSCALE_VAL_ADJUST
+#   define gcdENABLE_FSCALE_VAL_ADJUST          1
+#endif
+
+/*
+    gcdDUMP_IN_KERNEL
+
+        When set to 1, all dumps will happen in the kernel.  This is handy if
+        you want the kernel to dump its command buffers as well and the data
+        needs to be in sync.
+*/
+#ifndef gcdDUMP_IN_KERNEL
+#   define gcdDUMP_IN_KERNEL                    0
+#endif
+
+/*
+    gcdDUMP_COMMAND
+
+        When set to non-zero, the command queue will dump all incoming command
+        and context buffers as well as all other modifications to the command
+        queue.
+*/
+#ifndef gcdDUMP_COMMAND
+#   define gcdDUMP_COMMAND                      0
+#endif
+
+/*
+    gcdDUMP_2D
+
+        When set to non-zero, it will dump the 2D command and surface.
+*/
+#ifndef gcdDUMP_2D
+#   define gcdDUMP_2D                           0
+#endif
+
+/*
+    gcdDUMP_FRAME_TGA
+
+    When set to a value other than 0, a dump of the frame specified by the value,
+    will be done into frame.tga. Frame count starts from 1.
+ */
+#ifndef gcdDUMP_FRAME_TGA
+#   define gcdDUMP_FRAME_TGA                    0
+#endif
+/*
+    gcdNULL_DRIVER
+
+    Set to 1 for infinite speed hardware.
+    Set to 2 for bypassing the HAL.
+    Set to 3 for bypassing the drivers.
+*/
+#ifndef gcdNULL_DRIVER
+#   define gcdNULL_DRIVER  0
+#endif
+
+/*
+    gcdENABLE_TIMEOUT_DETECTION
+
+        Enable timeout detection.
+*/
+#ifndef gcdENABLE_TIMEOUT_DETECTION
+#   define gcdENABLE_TIMEOUT_DETECTION          0
+#endif
+
+/*
+    gcdCMD_BUFFER_SIZE
+
+        Number of bytes in a command buffer.
+*/
+#ifndef gcdCMD_BUFFER_SIZE
+#   define gcdCMD_BUFFER_SIZE                   (128 << 10)
+#endif
+
+/*
+    gcdCMD_BUFFERS
+
+        Number of command buffers to use per client.
+*/
+#ifndef gcdCMD_BUFFERS
+#   define gcdCMD_BUFFERS                       2
+#endif
+
+/*
+    gcdMAX_CMD_BUFFERS
+
+        Maximum number of command buffers to use per client.
+*/
+#ifndef gcdMAX_CMD_BUFFERS
+#   define gcdMAX_CMD_BUFFERS                   8
+#endif
+
+/*
+    gcdCOMMAND_QUEUES
+
+        Number of command queues in the kernel.
+*/
+#ifndef gcdCOMMAND_QUEUES
+#   define gcdCOMMAND_QUEUES                    2
+#endif
+
+/*
+    gcdPOWER_CONTROL_DELAY
+
+        The delay in milliseconds required to wait until the GPU has woke up
+        from a suspend or power-down state.  This is system dependent because
+        the bus clock also needs to stabalize.
+*/
+#ifndef gcdPOWER_CONTROL_DELAY
+#   define gcdPOWER_CONTROL_DELAY               0
+#endif
+
+/*
+    gcdMIRROR_PAGETABLE
+
+        Enable it when GPUs with old MMU and new MMU exist at same SoC. It makes
+        each GPU use same virtual address to access same physical memory.
+*/
+#ifndef gcdMIRROR_PAGETABLE
+#   define gcdMIRROR_PAGETABLE                  0
+#endif
+
+/*
+    gcdMMU_SIZE
+
+        Size of the MMU page table in bytes.  Each 4 bytes can hold 4kB worth of
+        virtual data.
+*/
+#ifndef gcdMMU_SIZE
+#if gcdMIRROR_PAGETABLE
+#   define gcdMMU_SIZE                          0x200000
+#else
+#   define gcdMMU_SIZE                          (256 << 10)
+#endif
+#endif
+
+/*
+    gcdSECURE_USER
+
+        Use logical addresses instead of physical addresses in user land.  In
+        this case a hint table is created for both command buffers and context
+        buffers, and that hint table will be used to patch up those buffers in
+        the kernel when they are ready to submit.
+*/
+#ifndef gcdSECURE_USER
+#   define gcdSECURE_USER                       0
+#endif
+
+/*
+    gcdSECURE_CACHE_SLOTS
+
+        Number of slots in the logical to DMA address cache table.  Each time a
+        logical address needs to be translated into a DMA address for the GPU,
+        this cache will be walked.  The replacement scheme is LRU.
+*/
+#ifndef gcdSECURE_CACHE_SLOTS
+#   define gcdSECURE_CACHE_SLOTS                1024
+#endif
+
+/*
+    gcdSECURE_CACHE_METHOD
+
+        Replacement scheme used for Secure Cache.  The following options are
+        available:
+
+            gcdSECURE_CACHE_LRU
+                A standard LRU cache.
+
+            gcdSECURE_CACHE_LINEAR
+                A linear walker with the idea that an application will always
+                render the scene in a similar way, so the next entry in the
+                cache should be a hit most of the time.
+
+            gcdSECURE_CACHE_HASH
+                A 256-entry hash table.
+
+            gcdSECURE_CACHE_TABLE
+                A simple cache but with potential of a lot of cache replacement.
+*/
+#ifndef gcdSECURE_CACHE_METHOD
+#   define gcdSECURE_CACHE_METHOD               gcdSECURE_CACHE_HASH
+#endif
+
+/*
+    gcdREGISTER_ACCESS_FROM_USER
+
+        Set to 1 to allow IOCTL calls to get through from user land.  This
+        should only be in debug or development drops.
+*/
+#ifndef gcdREGISTER_ACCESS_FROM_USER
+#   define gcdREGISTER_ACCESS_FROM_USER         1
+#endif
+
+/*
+    gcdHEAP_SIZE
+
+        Set the allocation size for the internal heaps.  Each time a heap is
+        full, a new heap will be allocated with this minmimum amount of bytes.
+        The bigger this size, the fewer heaps there are to allocate, the better
+        the performance.  However, heaps won't be freed until they are
+        completely free, so there might be some more memory waste if the size is
+        too big.
+*/
+#ifndef gcdHEAP_SIZE
+#   define gcdHEAP_SIZE                         (64 << 10)
+#endif
+
+/*
+    gcdPOWER_SUSPEND_WHEN_IDLE
+
+        Set to 1 to make GPU enter gcvPOWER_SUSPEND when idle detected,
+        otherwise GPU will enter gcvPOWER_IDLE.
+*/
+#ifndef gcdPOWER_SUSPEND_WHEN_IDLE
+#   define gcdPOWER_SUSPEND_WHEN_IDLE          1
+#endif
+
+#ifndef gcdFPGA_BUILD
+#   define gcdFPGA_BUILD                       0
+#endif
+
+/*
+    gcdGPU_TIMEOUT
+
+        This define specified the number of milliseconds the system will wait
+        before it broadcasts the GPU is stuck.  In other words, it will define
+        the timeout of any operation that needs to wait for the GPU.
+
+        If the value is 0, no timeout will be checked for.
+*/
+#ifndef gcdGPU_TIMEOUT
+#if gcdFPGA_BUILD
+#       define gcdGPU_TIMEOUT                   0
+#       define gcdGPU_2D_TIMEOUT                0
+#   else
+#       define gcdGPU_TIMEOUT                   20000
+#       define gcdGPU_2D_TIMEOUT                4000
+#   endif
+#endif
+
+/*
+    gcdGPU_ADVANCETIMER
+
+        it is advance timer.
+*/
+#ifndef gcdGPU_ADVANCETIMER
+#   define gcdGPU_ADVANCETIMER                  250
+#endif
+
+/*
+    gcdSTATIC_LINK
+
+        This define disalbes static linking;
+*/
+#ifndef gcdSTATIC_LINK
+#   define gcdSTATIC_LINK                       0
+#endif
+
+/*
+    gcdUSE_NEW_HEAP
+
+        Setting this define to 1 enables new heap.
+*/
+#ifndef gcdUSE_NEW_HEAP
+#   define gcdUSE_NEW_HEAP                      0
+#endif
+
+/*
+    gcdCMD_NO_2D_CONTEXT
+
+        This define enables no-context 2D command buffer.
+*/
+#ifndef gcdCMD_NO_2D_CONTEXT
+#   define gcdCMD_NO_2D_CONTEXT                 1
+#endif
+
+/*
+    gcdENABLE_BUFFER_ALIGNMENT
+
+    When enabled, video memory is allocated  with atleast 16KB aligment
+    between multiple sub-buffers.
+*/
+#ifndef gcdENABLE_BUFFER_ALIGNMENT
+#   define gcdENABLE_BUFFER_ALIGNMENT             1
+#endif
+
+/*
+    gcdENABLE_BANK_ALIGNMENT
+
+    When enabled, video memory is allocated bank aligned. The vendor can modify
+    _GetSurfaceBankAlignment() and _GetBankOffsetBytes() to define how
+    different types of allocations are bank and channel aligned.
+    When disabled (default), no bank alignment is done.
+*/
+#ifndef gcdENABLE_BANK_ALIGNMENT
+#   define gcdENABLE_BANK_ALIGNMENT             0
+#endif
+
+/*
+    gcdBANK_BIT_START
+
+    Specifies the start bit of the bank (inclusive).
+*/
+#ifndef gcdBANK_BIT_START
+#   define gcdBANK_BIT_START                    12
+#endif
+
+/*
+    gcdBANK_BIT_END
+
+    Specifies the end bit of the bank (inclusive).
+*/
+#ifndef gcdBANK_BIT_END
+#   define gcdBANK_BIT_END                      14
+#endif
+
+/*
+    gcdBANK_CHANNEL_BIT
+
+    When set, video memory when allocated bank aligned is allocated such that
+    render and depth buffer addresses alternate on the channel bit specified.
+    This option has an effect only when gcdENABLE_BANK_ALIGNMENT is enabled.
+    When disabled (default), no alteration is done.
+*/
+#ifndef gcdBANK_CHANNEL_BIT
+#   define gcdBANK_CHANNEL_BIT                  7
+#endif
+
+/*
+    gcdDYNAMIC_SPEED
+
+        When non-zero, it informs the kernel driver to use the speed throttling
+        broadcasting functions to inform the system the GPU should be spet up or
+        slowed down. It will send a broadcast for slowdown each "interval"
+        specified by this define in milliseconds
+        (gckOS_BroadcastCalibrateSpeed).
+*/
+#ifndef gcdDYNAMIC_SPEED
+#    define gcdDYNAMIC_SPEED                    2000
+#endif
+
+/*
+    gcdDYNAMIC_EVENT_THRESHOLD
+
+        When non-zero, it specifies the maximum number of available events at
+        which the kernel driver will issue a broadcast to speed up the GPU
+        (gckOS_BroadcastHurry).
+*/
+#ifndef gcdDYNAMIC_EVENT_THRESHOLD
+#    define gcdDYNAMIC_EVENT_THRESHOLD          5
+#endif
+
+/*
+    gcdENABLE_PROFILING
+
+        Enable profiling macros.
+*/
+#ifndef gcdENABLE_PROFILING
+#   define gcdENABLE_PROFILING                  0
+#endif
+
+/*
+    gcdENABLE_128B_MERGE
+
+        Enable 128B merge for the BUS control.
+*/
+#ifndef gcdENABLE_128B_MERGE
+#   define gcdENABLE_128B_MERGE                 0
+#endif
+
+/*
+    gcdFRAME_DB
+
+        When non-zero, it specified the number of frames inside the frame
+        database. The frame DB will collect per-frame timestamps and hardware
+        counters.
+*/
+#ifndef gcdFRAME_DB
+#   define gcdFRAME_DB                          0
+#   define gcdFRAME_DB_RESET                    0
+#   define gcdFRAME_DB_NAME                     "/var/log/frameDB.log"
+#endif
+
+/*
+    gcdDISABLE_CORES_2D3D
+            disable the 2D3D cores for 2D openVG
+*/
+#ifndef gcdDISABLE_CORES_2D3D
+#   define gcdDISABLE_CORES_2D3D                0
+#endif
+
+/*
+   gcdPAGED_MEMORY_CACHEABLE
+
+        When non-zero, paged memory will be cacheable.
+
+        Normally, driver will detemines whether a video memory
+        is cacheable or not. When cacheable is not neccessary,
+        it will be writecombine.
+
+        This option is only for those SOC which can't enable
+        writecombine without enabling cacheable.
+*/
+#ifndef gcdPAGED_MEMORY_CACHEABLE
+#   define gcdPAGED_MEMORY_CACHEABLE            0
+#endif
+
+/*
+   gcdNONPAGED_MEMORY_CACHEABLE
+
+        When non-zero, non paged memory will be cacheable.
+*/
+#ifndef gcdNONPAGED_MEMORY_CACHEABLE
+#   define gcdNONPAGED_MEMORY_CACHEABLE         0
+#endif
+
+/*
+   gcdNONPAGED_MEMORY_BUFFERABLE
+
+        When non-zero, non paged memory will be bufferable.
+        gcdNONPAGED_MEMORY_BUFFERABLE and gcdNONPAGED_MEMORY_CACHEABLE
+        can't be set 1 at same time
+*/
+#ifndef gcdNONPAGED_MEMORY_BUFFERABLE
+#   define gcdNONPAGED_MEMORY_BUFFERABLE        1
+#endif
+
+/*
+    gcdENABLE_INFINITE_SPEED_HW
+            enable the Infinte HW , this is for 2D openVG
+*/
+#ifndef gcdENABLE_INFINITE_SPEED_HW
+#   define gcdENABLE_INFINITE_SPEED_HW          0
+#endif
+
+/*
+    gcdMULTI_GPU
+
+    Enable/disable multi-GPU support.
+    0      : Disable multi-GPU support
+    1      : Enable one of the 3D cores
+    [2..X] : Number of 3D GPU Cores
+*/
+#ifndef gcdMULTI_GPU
+#   define gcdMULTI_GPU                         0
+#endif
+
+/*
+    gcdMULTI_GPU_AFFINITY
+
+    Enable/disable the binding of a context to one GPU
+*/
+#ifndef gcdMULTI_GPU_AFFINITY
+#   define gcdMULTI_GPU_AFFINITY                0
+#endif
+
+/*
+    gcdPOWEROFF_TIMEOUT
+
+        When non-zero, GPU will power off automatically from
+        idle state, and gcdPOWEROFF_TIMEOUT is also the default
+        timeout in milliseconds.
+ */
+#ifndef gcdPOWEROFF_TIMEOUT
+#   define gcdPOWEROFF_TIMEOUT                  300
+#endif
+
+/*
+    QNX_SINGLE_THREADED_DEBUGGING
+*/
+#ifndef QNX_SINGLE_THREADED_DEBUGGING
+#   define QNX_SINGLE_THREADED_DEBUGGING        0
+#endif
+
+/*
+    gcdRENDER_THREADS
+
+        Number of render threads. Make it zero, and there will be no render
+        threads.
+*/
+#ifndef gcdRENDER_THREADS
+#   define gcdRENDER_THREADS                    0
+#endif
+
+/*
+    gcdSMP
+
+        This define enables SMP support.
+
+        Currently, it only works on Linux/Android,
+        Kbuild will config it according to whether
+        CONFIG_SMP is set.
+
+*/
+#ifndef gcdSMP
+#ifdef __APPLE__
+#   define gcdSMP                               1
+#else
+#   define gcdSMP                               0
+#endif
+#endif
+
+/*
+    gcdSHARED_RESOLVE_BUFFER_ENABLED
+
+        Use shared resolve buffer for all app buffers.
+*/
+#ifndef gcdSHARED_RESOLVE_BUFFER_ENABLED
+#   define gcdSHARED_RESOLVE_BUFFER_ENABLED     0
+#endif
+
+/*
+     gcdUSE_TRIANGLE_STRIP_PATCH
+ */
+#ifndef gcdUSE_TRIANGLE_STRIP_PATCH
+#   define gcdUSE_TRIANGLE_STRIP_PATCH          1
+#endif
+
+/*
+    gcdENABLE_OUTER_CACHE_PATCH
+
+        Enable the outer cache patch.
+*/
+#ifndef gcdENABLE_OUTER_CACHE_PATCH
+#   define gcdENABLE_OUTER_CACHE_PATCH          0
+#endif
+
+/*
+    gcdPROCESS_ADDRESS_SPACE
+
+        When non-zero, every process which attaches to galcore has its own GPU
+        address space, size of which is gcdPROCESS_ADDRESS_SPACE_SIZE.
+*/
+#ifndef gcdPROCESS_ADDRESS_SPACE
+#   define gcdPROCESS_ADDRESS_SPACE             0
+#   define gcdPROCESS_ADDRESS_SPACE_SIZE        0x80000000
+#endif
+
+/*
+    gcdSHARED_PAGETABLE
+
+        When non-zero, multiple GPUs in one chip with same MMU use
+        one shared pagetable. So that when accessing same surface,
+        they can use same GPU virtual address.
+*/
+#ifndef gcdSHARED_PAGETABLE
+#   define gcdSHARED_PAGETABLE                  !gcdPROCESS_ADDRESS_SPACE
+#endif
+
+#ifndef gcdUSE_PVR
+#   define gcdUSE_PVR                           1
+#endif
+
+/*
+    gcdSMALL_BLOCK_SIZE
+
+        When non-zero, a part of VIDMEM will be reserved for requests
+        whose requesting size is less than gcdSMALL_BLOCK_SIZE.
+
+        For Linux, it's the size of a page. If this requeset fallbacks
+        to gcvPOOL_CONTIGUOUS or gcvPOOL_VIRTUAL, memory will be wasted
+        because they allocate a page at least.
+*/
+#ifndef gcdSMALL_BLOCK_SIZE
+#   define gcdSMALL_BLOCK_SIZE                  4096
+#   define gcdRATIO_FOR_SMALL_MEMORY            32
+#endif
+
+/*
+    gcdCONTIGUOUS_SIZE_LIMIT
+        When non-zero, size of video node from gcvPOOL_CONTIGUOUS is
+        limited by gcdCONTIGUOUS_SIZE_LIMIT.
+*/
+#ifndef gcdCONTIGUOUS_SIZE_LIMIT
+#   define gcdCONTIGUOUS_SIZE_LIMIT             0
+#endif
+
+/*
+    gcdLINK_QUEUE_SIZE
+
+        When non-zero, driver maintains a queue to record information of
+        latest lined context buffer and command buffer. Data in this queue
+        is be used to debug.
+*/
+#ifndef gcdLINK_QUEUE_SIZE
+#   define gcdLINK_QUEUE_SIZE                   64
+#endif
+
+/*  gcdALPHA_KILL_IN_SHADER
+
+        Enable alpha kill inside the shader. This will be set automatically by the
+        HAL if certain states match a criteria.
+*/
+#ifndef gcdALPHA_KILL_IN_SHADER
+#   define gcdALPHA_KILL_IN_SHADER              1
+#endif
+
+
+#ifndef gcdPRINT_SWAP_TIME
+#   define gcdPRINT_SWAP_TIME                   0
+#endif
+
+/*
+    gcdDVFS
+
+        When non-zero, software will make use of dynamic voltage and
+        frequency feature.
+ */
+#ifndef gcdDVFS
+#   define gcdDVFS                              0
+#   define gcdDVFS_ANAYLSE_WINDOW               4
+#   define gcdDVFS_POLLING_TIME                 (gcdDVFS_ANAYLSE_WINDOW * 4)
+#endif
+
+#ifndef gcdSYNC
+#   define gcdSYNC                              1
+#endif
+
+#ifndef gcdSHADER_SRC_BY_MACHINECODE
+#   define gcdSHADER_SRC_BY_MACHINECODE         1
+#endif
+
+#ifndef gcdGLB27_SHADER_REPLACE_OPTIMIZATION
+#    define gcdGLB27_SHADER_REPLACE_OPTIMIZATION 1
+#endif
+
+/*
+    gcdSTREAM_OUT_BUFFER
+
+        Enable suppport for the secondary stream out buffer.
+*/
+#ifndef gcdSTREAM_OUT_BUFFER
+#   define gcdSTREAM_OUT_BUFFER                 0
+#   define gcdSTREAM_OUT_NAIVE_SYNC             0
+#endif
+
+/*
+    gcdUSE_HARDWARE_CONFIGURATION_TABLES
+
+        Enable the use of hardware configuration tables,
+        instead of query hardware and determine the features.
+*/
+#ifndef gcdUSE_HARDWARE_CONFIGURATION_TABLES
+#   define gcdUSE_HARDWARE_CONFIGURATION_TABLES 0
+#endif
+
+/*
+    gcdSUPPORT_SWAP_RECTANGLE
+
+        Support swap with a specific rectangle.
+
+        Set the rectangle with eglSetSwapRectangleVIV api.
+        Android only.
+*/
+#ifndef gcdSUPPORT_SWAP_RECTANGLE
+#   define gcdSUPPORT_SWAP_RECTANGLE            0
+#endif
+
+/*
+    gcdGPU_LINEAR_BUFFER_ENABLED
+
+        Use linear buffer for GPU apps so HWC can do 2D composition.
+        Android only.
+*/
+#ifndef gcdGPU_LINEAR_BUFFER_ENABLED
+#   define gcdGPU_LINEAR_BUFFER_ENABLED         1
+#endif
+
+/*
+    gcdENABLE_RENDER_INTO_WINDOW
+
+        Enable Render-Into-Window (ie, No-Resolve or direct rendering) feature.
+        NOTE that even if enabled, it still depends on hardware feature and
+        application behavior. When hardware feature or application
+        behavior can not support render into window mode, it will fail back
+        to normal mode.
+        On android, if Render-Into-Window is finally used, window back buffer
+        of applications will be allocated matching render target tiling format.
+        Otherwise buffer tiling is decided by the above option
+        'gcdGPU_LINEAR_BUFFER_ENABLED'.
+*/
+#ifndef gcdENABLE_RENDER_INTO_WINDOW
+#   define gcdENABLE_RENDER_INTO_WINDOW         1
+#endif
+
+/*
+    gcdENABLE_RENDER_INTO_WINDOW_WITH_FC
+
+        Enable Direct-rendering (ie, No-Resolve) with tile status.
+        This is expremental and in development stage.
+        This will dynamically check if color compression is available.
+*/
+#ifndef gcdENABLE_RENDER_INTO_WINDOW_WITH_FC
+#   define gcdENABLE_RENDER_INTO_WINDOW_WITH_FC 1
+#endif
+
+/*
+    gcdENABLE_BLIT_BUFFER_PRESERVE
+
+        Render-Into-Window (ie, No-Resolve) does not include preserved swap
+        behavior.  This feature can enable buffer preserve in No-Resolve mode.
+        When enabled, previous buffer (may be part of ) will be resolve-blitted
+        to current buffer.
+*/
+#ifndef gcdENABLE_BLIT_BUFFER_PRESERVE
+#   define gcdENABLE_BLIT_BUFFER_PRESERVE       1
+#endif
+
+/*
+    gcdANDROID_NATIVE_FENCE_SYNC
+
+        Enable android native fence sync. It is introduced since jellybean-4.2.
+        Depends on linux kernel option: CONFIG_SYNC.
+
+        0: Disabled
+        1: Build framework for native fence sync feature, and EGL extension
+        2: Enable async swap buffers for client
+           * Native fence sync for client 'queueBuffer' in EGL, which is
+             'acquireFenceFd' for layer in compositor side.
+        3. Enable async hwcomposer composition.
+           * 'releaseFenceFd' for layer in compositor side, which is native
+             fence sync when client 'dequeueBuffer'
+           * Native fence sync for compositor 'queueBuffer' in EGL, which is
+             'acquireFenceFd' for framebuffer target for DC
+ */
+#ifndef gcdANDROID_NATIVE_FENCE_SYNC
+#   define gcdANDROID_NATIVE_FENCE_SYNC         0
+#endif
+
+/*
+    gcdANDROID_IMPLICIT_NATIVE_BUFFER_SYNC
+
+        Enable implicit android native buffer sync.
+
+        For non-HW_RENDER buffer, CPU (or other hardware) and GPU can access
+        the buffer at the same time. This is to add implicit synchronization
+        between CPU (or the hardware) and GPU.
+
+        Eventually, please do not use implicit native buffer sync, but use
+        "fence sync" or "android native fence sync" instead in libgui, which
+        can be enabled in frameworks/native/libs/gui/Android.mk. This kind
+        of synchronization should be done by app but not driver itself.
+
+        Please disable this option when either "fence sync" or
+        "android native fence sync" is enabled.
+ */
+#ifndef gcdANDROID_IMPLICIT_NATIVE_BUFFER_SYNC
+#   define gcdANDROID_IMPLICIT_NATIVE_BUFFER_SYNC   1
+#endif
+
+/*
+ * Implicit native buffer sync is not needed when ANDROID_native_fence_sync
+ * is available.
+ */
+#if gcdANDROID_NATIVE_FENCE_SYNC
+#   undef  gcdANDROID_IMPLICIT_NATIVE_BUFFER_SYNC
+#   define gcdANDROID_IMPLICIT_NATIVE_BUFFER_SYNC   0
+#endif
+
+/*
+    gcdANDROID_UNALIGNED_LINEAR_COMPOSITION_ADJUST
+
+        Enable source surface address adjust when composition on android.
+        Android only.
+*/
+#ifndef gcdANDROID_UNALIGNED_LINEAR_COMPOSITION_ADJUST
+#   define  gcdANDROID_UNALIGNED_LINEAR_COMPOSITION_ADJUST      1
+#endif
+
+/*
+    gcdUSE_WCLIP_PATCH
+
+        Enable wclipping patch.
+*/
+#ifndef gcdUSE_WCLIP_PATCH
+#   define gcdUSE_WCLIP_PATCH                   1
+#endif
+
+#ifndef gcdUSE_NPOT_PATCH
+#   define gcdUSE_NPOT_PATCH                    1
+#endif
+
+/*
+    gcd3DBLIT
+
+        TODO: Should be replaced by feature bit if available.
+*/
+#ifndef gcd3DBLIT
+#   define gcd3DBLIT                            0
+#endif
+
+/*
+    gcdINTERNAL_COMMENT
+
+        Wrap internal comment, content wrapped by it and the macor itself
+        will be removed in release driver.
+*/
+#ifndef gcdINTERNAL_COMMENT
+#   define gcdINTERNAL_COMMENT                  1
+#endif
+
+/*
+    gcdRTT_DISABLE_FC
+
+        Disable RTT FC support. For test only.
+*/
+#ifndef gcdRTT_DISABLE_FC
+#   define gcdRTT_DISABLE_FC                    0
+#endif
+
+/*
+    gcdFORCE_MIPMAP
+
+        Force generate mipmap for texture.
+*/
+#ifndef gcdFORCE_MIPMAP
+#   define gcdFORCE_MIPMAP                      0
+#endif
+
+/*
+    gcdFORCE_BILINEAR
+
+        Force bilinear for mipfilter.
+*/
+#ifndef gcdFORCE_BILINEAR
+#   define gcdFORCE_BILINEAR                    1
+#endif
+
+/*
+    gcdBINARY_TRACE
+
+        When non-zero, binary trace will be generated.
+
+        When gcdBINARY_TRACE_FILE_SIZE is non-zero, binary trace buffer will
+        be written to a file which size is limited to
+        gcdBINARY_TRACE_FILE_SIZE.
+*/
+#ifndef gcdBINARY_TRACE
+#   define gcdBINARY_TRACE                       0
+#   define gcdBINARY_TRACE_FILE_SIZE             0
+#endif
+
+#ifndef gcdMOVG
+#   define gcdMOVG                              0
+#   define gcdENABLE_TS_DOUBLE_BUFFER           1
+#else
+#if gcdMOVG
+#       define gcdENABLE_TS_DOUBLE_BUFFER       0
+#else
+#       define gcdENABLE_TS_DOUBLE_BUFFER       1
+#endif
+#endif
+
+/*  gcdINTERRUPT_STATISTIC
+ *
+ *  Monitor the event send to GPU and interrupt issued by GPU.
+ */
+
+#ifndef gcdINTERRUPT_STATISTIC
+#if defined(LINUX)
+#   define gcdINTERRUPT_STATISTIC               1
+#else
+#   define gcdINTERRUPT_STATISTIC               0
+#endif
+#endif
+
+/*
+    gcdYINVERTED_RENDERING
+        When it's not zero, we will rendering display buffer
+        with top-bottom direction. All other offscreen rendering
+        will be bottom-top, which follow OpenGL ES spec.
+*/
+#ifndef gcdYINVERTED_RENDERING
+#   define gcdYINVERTED_RENDERING 1
+#endif
+
+#if gcdYINVERTED_RENDERING
+/* disable unaligned linear composition adjust in Y-inverted rendering mode. */
+#   undef  gcdANDROID_UNALIGNED_LINEAR_COMPOSITION_ADJUST
+#   define gcdANDROID_UNALIGNED_LINEAR_COMPOSITION_ADJUST 0
+#endif
+
+/*
+    gcdFENCE_WAIT_LOOP_COUNT
+        Wait fence, loop count.
+*/
+#ifndef gcdFENCE_WAIT_LOOP_COUNT
+#   define gcdFENCE_WAIT_LOOP_COUNT 10000
+#endif
+
+/*
+    gcdHAL_3D_DRAWBLIT
+        When it's not zero, we will enable HAL 3D drawblit
+        to replace client 3dblit.
+*/
+#ifndef gcdHAL_3D_DRAWBLIT
+#   define gcdHAL_3D_DRAWBLIT 1
+#endif
+
+/*
+    gcdPARTIAL_FAST_CLEAR
+        When it's not zero, partial fast clear is enabled.
+        Depends on gcdHAL_3D_DRAWBLIT, if gcdHAL_3D_DRAWBLIT is not enabled,
+        only available when scissor box is completely aligned.
+        Expremental, under test.
+*/
+#ifndef gcdPARTIAL_FAST_CLEAR
+#   define gcdPARTIAL_FAST_CLEAR                1
+#endif
+
+/*
+    gcdREMOVE_SURF_ORIENTATION
+        When it's not zero, we will remove surface orientation function.
+        It wil become to a parameter of resolve function.
+*/
+#ifndef gcdREMOVE_SURF_ORIENTATION
+#   define gcdREMOVE_SURF_ORIENTATION 0
+#endif
+
+/*
+    gcdPATTERN_FAST_PATH
+         For pattern match
+*/
+#ifndef gcdPATTERN_FAST_PATH
+#   define gcdPATTERN_FAST_PATH       1
+#endif
+
+/*
+    gcdUSE_INPUT_DEVICE
+         disable input devices usage under fb mode to support fb+vdk multi-process
+*/
+#ifndef gcdUSE_INPUT_DEVICE
+#   define gcdUSE_INPUT_DEVICE        1
+#endif
+
+/*
+    gcdFRAMEINFO_STATISTIC
+        When enable, collect frame information.
+*/
+#ifndef gcdFRAMEINFO_STATISTIC
+
+#if (defined(DBG) && DBG) || defined(DEBUG) || defined(_DEBUG) || gcdDUMP
+#   define gcdFRAMEINFO_STATISTIC      1
+#else
+#   define gcdFRAMEINFO_STATISTIC      0
+#endif
+
+#endif
+
+/*
+    gcdPACKED_OUTPUT_ADDRESS
+        When it's not zero, ps output is already packed after linked
+*/
+#ifndef gcdPACKED_OUTPUT_ADDRESS
+#   define gcdPACKED_OUTPUT_ADDRESS             1
+#endif
+
+/*
+    gcdENABLE_THIRD_PARTY_OPERATION
+        Enable third party operation like tpc or not.
+        This macro can only be enabled by special customer.
+*/
+#ifndef gcdENABLE_THIRD_PARTY_OPERATION
+#   define gcdENABLE_THIRD_PARTY_OPERATION      0
+#endif
+
+/*
+    gcdENABLE_DEC_COMPRESSION
+        Enable DEC TPC compression or not.
+*/
+#ifndef gcdENABLE_DEC_COMPRESSION
+#   define gcdENABLE_DEC_COMPRESSION            0
+#ifndef gcdDEC_ENABLE_AHB
+#   define gcdDEC_ENABLE_AHB                    0
+#endif
+#endif
+
+/*
+    Core configurations. By default enable all cores.
+*/
+#ifndef gcdENABLE_3D
+#   define gcdENABLE_3D                         1
+#endif
+
+#ifndef gcdENABLE_2D
+#   define gcdENABLE_2D                         1
+#endif
+
+#ifndef gcdENABLE_VG
+#   define gcdENABLE_VG                         0
+#endif
+
+#ifndef gcdGC355_PROFILER
+#   define gcdGC355_PROFILER                    0
+#endif
+
+#ifndef gcdGC355_MEM_PRINT
+#   define gcdGC355_MEM_PRINT                      0
+#else
+#if (!((gcdENABLE_3D == 0) && (gcdENABLE_2D == 0) && (gcdENABLE_VG == 1)))
+#      undef gcdGC355_MEM_PRINT
+#      define gcdGC355_MEM_PRINT                   0
+#   endif
+#endif
+
+#ifndef gcdENABLE_UNIFIED_CONSTANT
+#   define gcdENABLE_UNIFIED_CONSTANT           1
+#endif
+
+/*
+    gcdRECORD_COMMAND
+*/
+#ifndef gcdRECORD_COMMAND
+#   define gcdRECORD_COMMAND                    0
+#endif
+
+/*
+    gcdALLOC_CMD_FROM_RESERVE
+
+    Provide a way by which location of command buffer can be
+    specified. This is a DEBUG option to limit command buffer
+    to some memory range.
+*/
+#ifndef gcdALLOC_CMD_FROM_RESERVE
+#   define gcdALLOC_CMD_FROM_RESERVE            0
+#endif
+
+#endif /* __gc_hal_options_h_ */
diff --git a/src/hal/kernel/inc/gc_hal_profiler.h b/src/hal/kernel/inc/gc_hal_profiler.h
new file mode 100755
index 0000000..fee3c31
--- /dev/null
+++ b/src/hal/kernel/inc/gc_hal_profiler.h
@@ -0,0 +1,619 @@
+/****************************************************************************
+*
+*    The MIT License (MIT)
+*
+*    Copyright (c) 2014 Vivante Corporation
+*
+*    Permission is hereby granted, free of charge, to any person obtaining a
+*    copy of this software and associated documentation files (the "Software"),
+*    to deal in the Software without restriction, including without limitation
+*    the rights to use, copy, modify, merge, publish, distribute, sublicense,
+*    and/or sell copies of the Software, and to permit persons to whom the
+*    Software is furnished to do so, subject to the following conditions:
+*
+*    The above copyright notice and this permission notice shall be included in
+*    all copies or substantial portions of the Software.
+*
+*    THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+*    IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+*    FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+*    AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+*    LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+*    FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+*    DEALINGS IN THE SOFTWARE.
+*
+*****************************************************************************
+*
+*    The GPL License (GPL)
+*
+*    Copyright (C) 2014  Vivante Corporation
+*
+*    This program is free software; you can redistribute it and/or
+*    modify it under the terms of the GNU General Public License
+*    as published by the Free Software Foundation; either version 2
+*    of the License, or (at your option) any later version.
+*
+*    This program is distributed in the hope that it will be useful,
+*    but WITHOUT ANY WARRANTY; without even the implied warranty of
+*    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+*    GNU General Public License for more details.
+*
+*    You should have received a copy of the GNU General Public License
+*    along with this program; if not, write to the Free Software Foundation,
+*    Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+*
+*****************************************************************************
+*
+*    Note: This software is released under dual MIT and GPL licenses. A
+*    recipient may use this file under the terms of either the MIT license or
+*    GPL License. If you wish to use only one license not the other, you can
+*    indicate your decision by deleting one of the above license notices in your
+*    version of this file.
+*
+*****************************************************************************/
+
+
+#ifndef __gc_hal_profiler_h_
+#define __gc_hal_profiler_h_
+
+#if VIVANTE_PROFILER_NEW
+#include "gc_hal_engine.h"
+#endif
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#define GLVERTEX_OBJECT 10
+#define GLVERTEX_OBJECT_BYTES 11
+
+#define GLINDEX_OBJECT 20
+#define GLINDEX_OBJECT_BYTES 21
+
+#define GLTEXTURE_OBJECT 30
+#define GLTEXTURE_OBJECT_BYTES 31
+
+#define GLBUFOBJ_OBJECT 40
+#define GLBUFOBJ_OBJECT_BYTES 41
+
+#if VIVANTE_PROFILER
+#define gcmPROFILE_GC(Enum, Value)  gcoPROFILER_Count(gcvNULL, Enum, Value)
+#else
+#define gcmPROFILE_GC(Enum, Value)  do { } while (gcvFALSE)
+#endif
+
+#ifndef gcdNEW_PROFILER_FILE
+#define gcdNEW_PROFILER_FILE    1
+#endif
+
+#define    ES11_CALLS              151
+#define    ES11_DRAWCALLS          (ES11_CALLS             + 1)
+#define    ES11_STATECHANGECALLS   (ES11_DRAWCALLS         + 1)
+#define    ES11_POINTCOUNT         (ES11_STATECHANGECALLS  + 1)
+#define    ES11_LINECOUNT          (ES11_POINTCOUNT        + 1)
+#define    ES11_TRIANGLECOUNT      (ES11_LINECOUNT         + 1)
+
+#define    ES30_CALLS              159
+#define    ES30_DRAWCALLS          (ES30_CALLS             + 1)
+#define    ES30_STATECHANGECALLS   (ES30_DRAWCALLS         + 1)
+#define    ES30_POINTCOUNT         (ES30_STATECHANGECALLS  + 1)
+#define    ES30_LINECOUNT          (ES30_POINTCOUNT        + 1)
+#define    ES30_TRIANGLECOUNT      (ES30_LINECOUNT         + 1)
+
+#define    VG11_CALLS              88
+#define    VG11_DRAWCALLS          (VG11_CALLS              + 1)
+#define    VG11_STATECHANGECALLS   (VG11_DRAWCALLS          + 1)
+#define    VG11_FILLCOUNT          (VG11_STATECHANGECALLS   + 1)
+#define    VG11_STROKECOUNT        (VG11_FILLCOUNT          + 1)
+/* End of Driver API ID Definitions. */
+
+/* HAL & MISC IDs. */
+#define HAL_VERTBUFNEWBYTEALLOC    1
+#define HAL_VERTBUFTOTALBYTEALLOC  (HAL_VERTBUFNEWBYTEALLOC     + 1)
+#define HAL_VERTBUFNEWOBJALLOC     (HAL_VERTBUFTOTALBYTEALLOC   + 1)
+#define HAL_VERTBUFTOTALOBJALLOC   (HAL_VERTBUFNEWOBJALLOC      + 1)
+#define HAL_INDBUFNEWBYTEALLOC     (HAL_VERTBUFTOTALOBJALLOC    + 1)
+#define HAL_INDBUFTOTALBYTEALLOC   (HAL_INDBUFNEWBYTEALLOC      + 1)
+#define HAL_INDBUFNEWOBJALLOC      (HAL_INDBUFTOTALBYTEALLOC    + 1)
+#define HAL_INDBUFTOTALOBJALLOC    (HAL_INDBUFNEWOBJALLOC       + 1)
+#define HAL_TEXBUFNEWBYTEALLOC     (HAL_INDBUFTOTALOBJALLOC     + 1)
+#define HAL_TEXBUFTOTALBYTEALLOC   (HAL_TEXBUFNEWBYTEALLOC      + 1)
+#define HAL_TEXBUFNEWOBJALLOC      (HAL_TEXBUFTOTALBYTEALLOC    + 1)
+#define HAL_TEXBUFTOTALOBJALLOC    (HAL_TEXBUFNEWOBJALLOC       + 1)
+
+#define GPU_CYCLES           1
+#define GPU_READ64BYTE       (GPU_CYCLES         + 1)
+#define GPU_WRITE64BYTE      (GPU_READ64BYTE     + 1)
+#define GPU_TOTALCYCLES      (GPU_WRITE64BYTE    + 1)
+#define GPU_IDLECYCLES       (GPU_TOTALCYCLES    + 1)
+
+#define VS_INSTCOUNT          1
+#define VS_BRANCHINSTCOUNT    (VS_INSTCOUNT          + 1)
+#define VS_TEXLDINSTCOUNT     (VS_BRANCHINSTCOUNT    + 1)
+#define VS_RENDEREDVERTCOUNT  (VS_TEXLDINSTCOUNT     + 1)
+#define VS_SOURCE             (VS_RENDEREDVERTCOUNT  + 1)
+
+#define PS_INSTCOUNT          1
+#define PS_BRANCHINSTCOUNT    (PS_INSTCOUNT          + 1)
+#define PS_TEXLDINSTCOUNT     (PS_BRANCHINSTCOUNT    + 1)
+#define PS_RENDEREDPIXCOUNT   (PS_TEXLDINSTCOUNT     + 1)
+#define PS_SOURCE             (PS_RENDEREDPIXCOUNT   + 1)
+
+#define PA_INVERTCOUNT        1
+#define PA_INPRIMCOUNT        (PA_INVERTCOUNT      + 1)
+#define PA_OUTPRIMCOUNT       (PA_INPRIMCOUNT      + 1)
+#define PA_DEPTHCLIPCOUNT     (PA_OUTPRIMCOUNT     + 1)
+#define PA_TRIVIALREJCOUNT    (PA_DEPTHCLIPCOUNT   + 1)
+#define PA_CULLCOUNT          (PA_TRIVIALREJCOUNT  + 1)
+
+#define SE_TRIANGLECOUNT      1
+#define SE_LINECOUNT          (SE_TRIANGLECOUNT    + 1)
+
+#define RA_VALIDPIXCOUNT      1
+#define RA_TOTALQUADCOUNT     (RA_VALIDPIXCOUNT      + 1)
+#define RA_VALIDQUADCOUNTEZ   (RA_TOTALQUADCOUNT     + 1)
+#define RA_TOTALPRIMCOUNT     (RA_VALIDQUADCOUNTEZ   + 1)
+#define RA_PIPECACHEMISSCOUNT (RA_TOTALPRIMCOUNT     + 1)
+#define RA_PREFCACHEMISSCOUNT (RA_PIPECACHEMISSCOUNT + 1)
+#define RA_EEZCULLCOUNT       (RA_PREFCACHEMISSCOUNT + 1)
+
+#define TX_TOTBILINEARREQ     1
+#define TX_TOTTRILINEARREQ    (TX_TOTBILINEARREQ      + 1)
+#define TX_TOTDISCARDTEXREQ   (TX_TOTTRILINEARREQ     + 1)
+#define TX_TOTTEXREQ          (TX_TOTDISCARDTEXREQ    + 1)
+#define TX_MEMREADCOUNT       (TX_TOTTEXREQ           + 1)
+#define TX_MEMREADIN8BCOUNT   (TX_MEMREADCOUNT        + 1)
+#define TX_CACHEMISSCOUNT     (TX_MEMREADIN8BCOUNT    + 1)
+#define TX_CACHEHITTEXELCOUNT (TX_CACHEMISSCOUNT      + 1)
+#define TX_CACHEMISSTEXELCOUNT (TX_CACHEHITTEXELCOUNT + 1)
+
+#define PE_KILLEDBYCOLOR      1
+#define PE_KILLEDBYDEPTH      (PE_KILLEDBYCOLOR    + 1)
+#define PE_DRAWNBYCOLOR       (PE_KILLEDBYDEPTH    + 1)
+#define PE_DRAWNBYDEPTH       (PE_DRAWNBYCOLOR     + 1)
+
+#define MC_READREQ8BPIPE      1
+#define MC_READREQ8BIP        (MC_READREQ8BPIPE    + 1)
+#define MC_WRITEREQ8BPIPE     (MC_READREQ8BIP      + 1)
+
+#define AXI_READREQSTALLED    1
+#define AXI_WRITEREQSTALLED   (AXI_READREQSTALLED  + 1)
+#define AXI_WRITEDATASTALLED  (AXI_WRITEREQSTALLED + 1)
+
+#define PVS_INSTRCOUNT        1
+#define PVS_ALUINSTRCOUNT     (PVS_INSTRCOUNT      + 1)
+#define PVS_TEXINSTRCOUNT     (PVS_ALUINSTRCOUNT   + 1)
+#define PVS_ATTRIBCOUNT       (PVS_TEXINSTRCOUNT   + 1)
+#define PVS_UNIFORMCOUNT      (PVS_ATTRIBCOUNT     + 1)
+#define PVS_FUNCTIONCOUNT     (PVS_UNIFORMCOUNT    + 1)
+#define PVS_SOURCE            (PVS_FUNCTIONCOUNT   + 1)
+
+#define PPS_INSTRCOUNT       1
+#define PPS_ALUINSTRCOUNT    (PPS_INSTRCOUNT       + 1)
+#define PPS_TEXINSTRCOUNT    (PPS_ALUINSTRCOUNT    + 1)
+#define PPS_ATTRIBCOUNT      (PPS_TEXINSTRCOUNT    + 1)
+#define PPS_UNIFORMCOUNT     (PPS_ATTRIBCOUNT      + 1)
+#define PPS_FUNCTIONCOUNT    (PPS_UNIFORMCOUNT     + 1)
+#define PPS_SOURCE           (PPS_FUNCTIONCOUNT    + 1)
+/* End of MISC Counter IDs. */
+
+#ifdef gcdNEW_PROFILER_FILE
+
+/* Category Constants. */
+#define VPHEADER        0x010000
+#define VPG_INFO        0x020000
+#define VPG_TIME        0x030000
+#define VPG_MEM         0x040000
+#define VPG_ES11        0x050000
+#define VPG_ES30        0x060000
+#define VPG_VG11        0x070000
+#define VPG_HAL         0x080000
+#define VPG_HW          0x090000
+#define VPG_GPU         0x0a0000
+#define VPG_VS          0x0b0000
+#define VPG_PS          0x0c0000
+#define VPG_PA          0x0d0000
+#define VPG_SETUP       0x0e0000
+#define VPG_RA          0x0f0000
+#define VPG_TX          0x100000
+#define VPG_PE          0x110000
+#define VPG_MC          0x120000
+#define VPG_AXI         0x130000
+#define VPG_PROG        0x140000
+#define VPG_PVS         0x150000
+#define VPG_PPS         0x160000
+#define VPG_ES11_TIME   0x170000
+#define VPG_ES30_TIME   0x180000
+#define VPG_FRAME       0x190000
+#define VPG_ES11_DRAW   0x200000
+#define VPG_ES30_DRAW   0x210000
+#define VPG_VG11_TIME   0x220000
+#define VPG_END         0xff0000
+
+/* Info. */
+#define VPC_INFOCOMPANY         (VPG_INFO + 1)
+#define VPC_INFOVERSION         (VPC_INFOCOMPANY + 1)
+#define VPC_INFORENDERER        (VPC_INFOVERSION + 1)
+#define VPC_INFOREVISION        (VPC_INFORENDERER + 1)
+#define VPC_INFODRIVER          (VPC_INFOREVISION + 1)
+#define VPC_INFODRIVERMODE      (VPC_INFODRIVER + 1)
+#define VPC_INFOSCREENSIZE      (VPC_INFODRIVERMODE + 1)
+
+/* Counter Constants. */
+#define VPC_ELAPSETIME          (VPG_TIME + 1)
+#define VPC_CPUTIME             (VPC_ELAPSETIME + 1)
+
+#define VPC_MEMMAXRES           (VPG_MEM + 1)
+#define VPC_MEMSHARED           (VPC_MEMMAXRES + 1)
+#define VPC_MEMUNSHAREDDATA     (VPC_MEMSHARED + 1)
+#define VPC_MEMUNSHAREDSTACK    (VPC_MEMUNSHAREDDATA + 1)
+
+/* OpenGL ES11 Statics Counter IDs. */
+#define    VPC_ES11CALLS            (VPG_ES11 +    ES11_CALLS)
+#define    VPC_ES11DRAWCALLS        (VPG_ES11 +    ES11_DRAWCALLS)
+#define    VPC_ES11STATECHANGECALLS (VPG_ES11 +    ES11_STATECHANGECALLS)
+#define    VPC_ES11POINTCOUNT       (VPG_ES11 +    ES11_POINTCOUNT)
+#define    VPC_ES11LINECOUNT        (VPG_ES11 +    ES11_LINECOUNT)
+#define    VPC_ES11TRIANGLECOUNT    (VPG_ES11 +    ES11_TRIANGLECOUNT)
+
+/* OpenGL ES30 Statistics Counter IDs. */
+#define    VPC_ES30CALLS            (VPG_ES30 +    ES30_CALLS)
+#define    VPC_ES30DRAWCALLS        (VPG_ES30 +    ES30_DRAWCALLS)
+#define    VPC_ES30STATECHANGECALLS (VPG_ES30 +    ES30_STATECHANGECALLS)
+#define    VPC_ES30POINTCOUNT       (VPG_ES30 +    ES30_POINTCOUNT)
+#define    VPC_ES30LINECOUNT        (VPG_ES30 +    ES30_LINECOUNT)
+#define    VPC_ES30TRIANGLECOUNT    (VPG_ES30 +    ES30_TRIANGLECOUNT)
+
+/* OpenVG Statistics Counter IDs. */
+#define    VPC_VG11CALLS            (VPG_VG11 +    VG11_CALLS)
+#define    VPC_VG11DRAWCALLS        (VPG_VG11 +    VG11_DRAWCALLS)
+#define    VPC_VG11STATECHANGECALLS (VPG_VG11 +    VG11_STATECHANGECALLS)
+#define    VPC_VG11FILLCOUNT        (VPG_VG11 +    VG11_FILLCOUNT)
+#define    VPC_VG11STROKECOUNT      (VPG_VG11 +    VG11_STROKECOUNT)
+
+/* HAL Counters. */
+#define VPC_HALVERTBUFNEWBYTEALLOC      (VPG_HAL + HAL_VERTBUFNEWBYTEALLOC)
+#define VPC_HALVERTBUFTOTALBYTEALLOC    (VPG_HAL + HAL_VERTBUFTOTALBYTEALLOC)
+#define VPC_HALVERTBUFNEWOBJALLOC       (VPG_HAL + HAL_VERTBUFNEWOBJALLOC)
+#define VPC_HALVERTBUFTOTALOBJALLOC     (VPG_HAL + HAL_VERTBUFTOTALOBJALLOC)
+#define VPC_HALINDBUFNEWBYTEALLOC       (VPG_HAL + HAL_INDBUFNEWBYTEALLOC)
+#define VPC_HALINDBUFTOTALBYTEALLOC     (VPG_HAL + HAL_INDBUFTOTALBYTEALLOC)
+#define VPC_HALINDBUFNEWOBJALLOC        (VPG_HAL + HAL_INDBUFNEWOBJALLOC)
+#define VPC_HALINDBUFTOTALOBJALLOC      (VPG_HAL + HAL_INDBUFTOTALOBJALLOC)
+#define VPC_HALTEXBUFNEWBYTEALLOC       (VPG_HAL + HAL_TEXBUFNEWBYTEALLOC)
+#define VPC_HALTEXBUFTOTALBYTEALLOC     (VPG_HAL + HAL_TEXBUFTOTALBYTEALLOC)
+#define VPC_HALTEXBUFNEWOBJALLOC        (VPG_HAL + HAL_TEXBUFNEWOBJALLOC)
+#define VPC_HALTEXBUFTOTALOBJALLOC      (VPG_HAL + HAL_TEXBUFTOTALOBJALLOC)
+
+/* HW: GPU Counters. */
+#define VPC_GPUCYCLES                   (VPG_GPU + GPU_CYCLES)
+#define VPC_GPUREAD64BYTE               (VPG_GPU + GPU_READ64BYTE)
+#define VPC_GPUWRITE64BYTE              (VPG_GPU + GPU_WRITE64BYTE)
+#define VPC_GPUTOTALCYCLES              (VPG_GPU + GPU_TOTALCYCLES)
+#define VPC_GPUIDLECYCLES               (VPG_GPU + GPU_IDLECYCLES)
+
+/* HW: Shader Counters. */
+#define VPC_VSINSTCOUNT                 (VPG_VS + VS_INSTCOUNT)
+#define VPC_VSBRANCHINSTCOUNT           (VPG_VS + VS_BRANCHINSTCOUNT)
+#define VPC_VSTEXLDINSTCOUNT            (VPG_VS + VS_TEXLDINSTCOUNT)
+#define VPC_VSRENDEREDVERTCOUNT         (VPG_VS + VS_RENDEREDVERTCOUNT)
+/* HW: PS Count. */
+#define VPC_PSINSTCOUNT                 (VPG_PS + PS_INSTCOUNT)
+#define VPC_PSBRANCHINSTCOUNT           (VPG_PS + PS_BRANCHINSTCOUNT)
+#define VPC_PSTEXLDINSTCOUNT            (VPG_PS + PS_TEXLDINSTCOUNT)
+#define VPC_PSRENDEREDPIXCOUNT          (VPG_PS + PS_RENDEREDPIXCOUNT)
+
+
+/* HW: PA Counters. */
+#define VPC_PAINVERTCOUNT               (VPG_PA + PA_INVERTCOUNT)
+#define VPC_PAINPRIMCOUNT               (VPG_PA + PA_INPRIMCOUNT)
+#define VPC_PAOUTPRIMCOUNT              (VPG_PA + PA_OUTPRIMCOUNT)
+#define VPC_PADEPTHCLIPCOUNT            (VPG_PA + PA_DEPTHCLIPCOUNT)
+#define VPC_PATRIVIALREJCOUNT           (VPG_PA + PA_TRIVIALREJCOUNT)
+#define VPC_PACULLCOUNT                 (VPG_PA + PA_CULLCOUNT)
+
+/* HW: Setup Counters. */
+#define VPC_SETRIANGLECOUNT             (VPG_SETUP + SE_TRIANGLECOUNT)
+#define VPC_SELINECOUNT                 (VPG_SETUP + SE_LINECOUNT)
+
+/* HW: RA Counters. */
+#define VPC_RAVALIDPIXCOUNT             (VPG_RA + RA_VALIDPIXCOUNT)
+#define VPC_RATOTALQUADCOUNT            (VPG_RA + RA_TOTALQUADCOUNT)
+#define VPC_RAVALIDQUADCOUNTEZ          (VPG_RA + RA_VALIDQUADCOUNTEZ)
+#define VPC_RATOTALPRIMCOUNT            (VPG_RA + RA_TOTALPRIMCOUNT)
+#define VPC_RAPIPECACHEMISSCOUNT        (VPG_RA + RA_PIPECACHEMISSCOUNT)
+#define VPC_RAPREFCACHEMISSCOUNT        (VPG_RA + RA_PREFCACHEMISSCOUNT)
+#define VPC_RAEEZCULLCOUNT              (VPG_RA + RA_EEZCULLCOUNT)
+
+/* HW: TEX Counters. */
+#define VPC_TXTOTBILINEARREQ            (VPG_TX + TX_TOTBILINEARREQ)
+#define VPC_TXTOTTRILINEARREQ           (VPG_TX + TX_TOTTRILINEARREQ)
+#define VPC_TXTOTDISCARDTEXREQ          (VPG_TX + TX_TOTDISCARDTEXREQ)
+#define VPC_TXTOTTEXREQ                 (VPG_TX + TX_TOTTEXREQ)
+#define VPC_TXMEMREADCOUNT              (VPG_TX + TX_MEMREADCOUNT)
+#define VPC_TXMEMREADIN8BCOUNT          (VPG_TX + TX_MEMREADIN8BCOUNT)
+#define VPC_TXCACHEMISSCOUNT            (VPG_TX + TX_CACHEMISSCOUNT)
+#define VPC_TXCACHEHITTEXELCOUNT        (VPG_TX + TX_CACHEHITTEXELCOUNT)
+#define VPC_TXCACHEMISSTEXELCOUNT       (VPG_TX + TX_CACHEMISSTEXELCOUNT)
+
+/* HW: PE Counters. */
+#define VPC_PEKILLEDBYCOLOR             (VPG_PE + PE_KILLEDBYCOLOR)
+#define VPC_PEKILLEDBYDEPTH             (VPG_PE + PE_KILLEDBYDEPTH)
+#define VPC_PEDRAWNBYCOLOR              (VPG_PE + PE_DRAWNBYCOLOR)
+#define VPC_PEDRAWNBYDEPTH              (VPG_PE + PE_DRAWNBYDEPTH)
+
+/* HW: MC Counters. */
+#define VPC_MCREADREQ8BPIPE             (VPG_MC + MC_READREQ8BPIPE)
+#define VPC_MCREADREQ8BIP               (VPG_MC + MC_READREQ8BIP)
+#define VPC_MCWRITEREQ8BPIPE            (VPG_MC + MC_WRITEREQ8BPIPE)
+
+/* HW: AXI Counters. */
+#define VPC_AXIREADREQSTALLED           (VPG_AXI + AXI_READREQSTALLED)
+#define VPC_AXIWRITEREQSTALLED          (VPG_AXI + AXI_WRITEREQSTALLED)
+#define VPC_AXIWRITEDATASTALLED         (VPG_AXI + AXI_WRITEDATASTALLED)
+
+/* PROGRAM: Shader program counters. */
+#define VPC_PVSINSTRCOUNT           (VPG_PVS + PVS_INSTRCOUNT)
+#define VPC_PVSALUINSTRCOUNT        (VPG_PVS + PVS_ALUINSTRCOUNT)
+#define VPC_PVSTEXINSTRCOUNT        (VPG_PVS + PVS_TEXINSTRCOUNT)
+#define VPC_PVSATTRIBCOUNT          (VPG_PVS + PVS_ATTRIBCOUNT)
+#define VPC_PVSUNIFORMCOUNT         (VPG_PVS + PVS_UNIFORMCOUNT)
+#define VPC_PVSFUNCTIONCOUNT        (VPG_PVS + PVS_FUNCTIONCOUNT)
+#define VPC_PVSSOURCE               (VPG_PVS + PVS_SOURCE)
+
+#define VPC_PPSINSTRCOUNT           (VPG_PPS + PPS_INSTRCOUNT)
+#define VPC_PPSALUINSTRCOUNT        (VPG_PPS + PPS_ALUINSTRCOUNT)
+#define VPC_PPSTEXINSTRCOUNT        (VPG_PPS + PPS_TEXINSTRCOUNT)
+#define VPC_PPSATTRIBCOUNT          (VPG_PPS + PPS_ATTRIBCOUNT)
+#define VPC_PPSUNIFORMCOUNT         (VPG_PPS + PPS_UNIFORMCOUNT)
+#define VPC_PPSFUNCTIONCOUNT        (VPG_PPS + PPS_FUNCTIONCOUNT)
+#define VPC_PPSSOURCE               (VPG_PPS + PPS_SOURCE)
+
+#define VPC_PROGRAMHANDLE           (VPG_PROG + 1)
+
+#define VPC_ES30_DRAW_NO            (VPG_ES30_DRAW + 1)
+#define VPC_ES11_DRAW_NO            (VPG_ES11_DRAW + 1)
+#endif
+
+
+/* HW profile information. */
+typedef struct _gcsPROFILER_COUNTERS
+{
+    /* HW static counters. */
+    gctUINT32       gpuClock;
+    gctUINT32       axiClock;
+    gctUINT32       shaderClock;
+
+    /* HW vairable counters. */
+    gctUINT32       gpuClockStart;
+    gctUINT32       gpuClockEnd;
+
+    /* HW vairable counters. */
+    gctUINT32       gpuCyclesCounter;
+    gctUINT32       gpuTotalCyclesCounter;
+    gctUINT32       gpuIdleCyclesCounter;
+    gctUINT32       gpuTotalRead64BytesPerFrame;
+    gctUINT32       gpuTotalWrite64BytesPerFrame;
+
+    /* PE */
+    gctUINT32       pe_pixel_count_killed_by_color_pipe;
+    gctUINT32       pe_pixel_count_killed_by_depth_pipe;
+    gctUINT32       pe_pixel_count_drawn_by_color_pipe;
+    gctUINT32       pe_pixel_count_drawn_by_depth_pipe;
+
+    /* SH */
+    gctUINT32       ps_inst_counter;
+    gctUINT32       rendered_pixel_counter;
+    gctUINT32       vs_inst_counter;
+    gctUINT32       rendered_vertice_counter;
+    gctUINT32       vtx_branch_inst_counter;
+    gctUINT32       vtx_texld_inst_counter;
+    gctUINT32       pxl_branch_inst_counter;
+    gctUINT32       pxl_texld_inst_counter;
+
+    /* PA */
+    gctUINT32       pa_input_vtx_counter;
+    gctUINT32       pa_input_prim_counter;
+    gctUINT32       pa_output_prim_counter;
+    gctUINT32       pa_depth_clipped_counter;
+    gctUINT32       pa_trivial_rejected_counter;
+    gctUINT32       pa_culled_counter;
+
+    /* SE */
+    gctUINT32       se_culled_triangle_count;
+    gctUINT32       se_culled_lines_count;
+
+    /* RA */
+    gctUINT32       ra_valid_pixel_count;
+    gctUINT32       ra_total_quad_count;
+    gctUINT32       ra_valid_quad_count_after_early_z;
+    gctUINT32       ra_total_primitive_count;
+    gctUINT32       ra_pipe_cache_miss_counter;
+    gctUINT32       ra_prefetch_cache_miss_counter;
+    gctUINT32       ra_eez_culled_counter;
+
+    /* TX */
+    gctUINT32       tx_total_bilinear_requests;
+    gctUINT32       tx_total_trilinear_requests;
+    gctUINT32       tx_total_discarded_texture_requests;
+    gctUINT32       tx_total_texture_requests;
+    gctUINT32       tx_mem_read_count;
+    gctUINT32       tx_mem_read_in_8B_count;
+    gctUINT32       tx_cache_miss_count;
+    gctUINT32       tx_cache_hit_texel_count;
+    gctUINT32       tx_cache_miss_texel_count;
+
+    /* MC */
+    gctUINT32       mc_total_read_req_8B_from_pipeline;
+    gctUINT32       mc_total_read_req_8B_from_IP;
+    gctUINT32       mc_total_write_req_8B_from_pipeline;
+
+    /* HI */
+    gctUINT32       hi_axi_cycles_read_request_stalled;
+    gctUINT32       hi_axi_cycles_write_request_stalled;
+    gctUINT32       hi_axi_cycles_write_data_stalled;
+}
+gcsPROFILER_COUNTERS;
+
+#if VIVANTE_PROFILER_NEW
+#define NumOfDrawBuf 64
+#endif
+
+/* HAL profile information. */
+typedef struct _gcsPROFILER
+{
+    gctUINT32       enable;
+    gctBOOL         enableHal;
+    gctBOOL         enableHW;
+    gctBOOL         enableSH;
+    gctBOOL         isSyncMode;
+    gctBOOL         disableOutputCounter;
+
+    gctBOOL         useSocket;
+    gctINT          sockFd;
+
+    gctFILE         file;
+
+    /* Aggregate Information */
+
+    /* Clock Info */
+    gctUINT64       frameStart;
+    gctUINT64       frameEnd;
+
+    /* Current frame information */
+    gctUINT32       frameNumber;
+    gctUINT64       frameStartTimeusec;
+    gctUINT64       frameEndTimeusec;
+    gctUINT64       frameStartCPUTimeusec;
+    gctUINT64       frameEndCPUTimeusec;
+
+#if PROFILE_HAL_COUNTERS
+    gctUINT32       vertexBufferTotalBytesAlloc;
+    gctUINT32       vertexBufferNewBytesAlloc;
+    int             vertexBufferTotalObjectsAlloc;
+    int             vertexBufferNewObjectsAlloc;
+
+    gctUINT32       indexBufferTotalBytesAlloc;
+    gctUINT32       indexBufferNewBytesAlloc;
+    int             indexBufferTotalObjectsAlloc;
+    int             indexBufferNewObjectsAlloc;
+
+    gctUINT32       textureBufferTotalBytesAlloc;
+    gctUINT32       textureBufferNewBytesAlloc;
+    int             textureBufferTotalObjectsAlloc;
+    int             textureBufferNewObjectsAlloc;
+
+    gctUINT32       numCommits;
+    gctUINT32       drawPointCount;
+    gctUINT32       drawLineCount;
+    gctUINT32       drawTriangleCount;
+    gctUINT32       drawVertexCount;
+    gctUINT32       redundantStateChangeCalls;
+#endif
+
+    gctUINT32       prevVSInstCount;
+    gctUINT32       prevVSBranchInstCount;
+    gctUINT32       prevVSTexInstCount;
+    gctUINT32       prevVSVertexCount;
+    gctUINT32       prevPSInstCount;
+    gctUINT32       prevPSBranchInstCount;
+    gctUINT32       prevPSTexInstCount;
+    gctUINT32       prevPSPixelCount;
+
+#if VIVANTE_PROFILER_NEW
+    gcoBUFOBJ       newCounterBuf[NumOfDrawBuf];
+    gctUINT32       curBufId;
+#endif
+
+}
+gcsPROFILER;
+
+/* Memory profile information. */
+struct _gcsMemProfile
+{
+    /* Memory Usage */
+    gctUINT32       videoMemUsed;
+    gctUINT32       systemMemUsed;
+    gctUINT32       commitBufferSize;
+    gctUINT32       contextBufferCopyBytes;
+};
+
+/* Shader profile information. */
+struct _gcsSHADER_PROFILER
+{
+    gctUINT32       shaderLength;
+    gctUINT32       shaderALUCycles;
+    gctUINT32       shaderTexLoadCycles;
+    gctUINT32       shaderTempRegCount;
+    gctUINT32       shaderSamplerRegCount;
+    gctUINT32       shaderInputRegCount;
+    gctUINT32       shaderOutputRegCount;
+};
+
+/* Initialize the gcsProfiler. */
+gceSTATUS
+gcoPROFILER_Initialize(
+    IN gcoHAL Hal,
+    IN gctBOOL Enable
+    );
+
+/* Destroy the gcProfiler. */
+gceSTATUS
+gcoPROFILER_Destroy(
+    IN gcoHAL Hal
+    );
+
+/* Write data to profiler. */
+gceSTATUS
+gcoPROFILER_Write(
+    IN gcoHAL Hal,
+    IN gctSIZE_T ByteCount,
+    IN gctCONST_POINTER Data
+    );
+
+/* Flush data out. */
+gceSTATUS
+gcoPROFILER_Flush(
+    IN gcoHAL Hal
+    );
+
+/* Call to signal end of frame. */
+gceSTATUS
+gcoPROFILER_EndFrame(
+    IN gcoHAL Hal
+    );
+
+/* Call to signal end of draw. */
+gceSTATUS
+gcoPROFILER_EndDraw(
+    IN gcoHAL Hal,
+    IN gctBOOL FirstDraw
+    );
+
+/* Increase profile counter Enum by Value. */
+gceSTATUS
+gcoPROFILER_Count(
+    IN gcoHAL Hal,
+    IN gctUINT32 Enum,
+    IN gctINT Value
+    );
+
+/* Profile input vertex shader. */
+gceSTATUS
+gcoPROFILER_ShaderVS(
+    IN gcoHAL Hal,
+    IN gctPOINTER Vs
+    );
+
+/* Profile input fragment shader. */
+gceSTATUS
+gcoPROFILER_ShaderFS(
+    IN gcoHAL Hal,
+    IN gctPOINTER Fs
+    );
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* __gc_hal_profiler_h_ */
diff --git a/src/hal/kernel/inc/gc_hal_raster.h b/src/hal/kernel/inc/gc_hal_raster.h
new file mode 100755
index 0000000..03d170f
--- /dev/null
+++ b/src/hal/kernel/inc/gc_hal_raster.h
@@ -0,0 +1,1078 @@
+/****************************************************************************
+*
+*    The MIT License (MIT)
+*
+*    Copyright (c) 2014 Vivante Corporation
+*
+*    Permission is hereby granted, free of charge, to any person obtaining a
+*    copy of this software and associated documentation files (the "Software"),
+*    to deal in the Software without restriction, including without limitation
+*    the rights to use, copy, modify, merge, publish, distribute, sublicense,
+*    and/or sell copies of the Software, and to permit persons to whom the
+*    Software is furnished to do so, subject to the following conditions:
+*
+*    The above copyright notice and this permission notice shall be included in
+*    all copies or substantial portions of the Software.
+*
+*    THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+*    IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+*    FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+*    AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+*    LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+*    FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+*    DEALINGS IN THE SOFTWARE.
+*
+*****************************************************************************
+*
+*    The GPL License (GPL)
+*
+*    Copyright (C) 2014  Vivante Corporation
+*
+*    This program is free software; you can redistribute it and/or
+*    modify it under the terms of the GNU General Public License
+*    as published by the Free Software Foundation; either version 2
+*    of the License, or (at your option) any later version.
+*
+*    This program is distributed in the hope that it will be useful,
+*    but WITHOUT ANY WARRANTY; without even the implied warranty of
+*    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+*    GNU General Public License for more details.
+*
+*    You should have received a copy of the GNU General Public License
+*    along with this program; if not, write to the Free Software Foundation,
+*    Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+*
+*****************************************************************************
+*
+*    Note: This software is released under dual MIT and GPL licenses. A
+*    recipient may use this file under the terms of either the MIT license or
+*    GPL License. If you wish to use only one license not the other, you can
+*    indicate your decision by deleting one of the above license notices in your
+*    version of this file.
+*
+*****************************************************************************/
+
+
+#ifndef __gc_hal_raster_h_
+#define __gc_hal_raster_h_
+
+#include "gc_hal_enum.h"
+#include "gc_hal_types.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/******************************************************************************\
+****************************** Object Declarations *****************************
+\******************************************************************************/
+
+typedef struct _gcoBRUSH *                gcoBRUSH;
+typedef struct _gcoBRUSH_CACHE *          gcoBRUSH_CACHE;
+
+/******************************************************************************\
+******************************** gcoBRUSH Object *******************************
+\******************************************************************************/
+
+/* Create a new solid color gcoBRUSH object. */
+gceSTATUS
+gcoBRUSH_ConstructSingleColor(
+    IN gcoHAL Hal,
+    IN gctUINT32 ColorConvert,
+    IN gctUINT32 Color,
+    IN gctUINT64 Mask,
+    gcoBRUSH * Brush
+    );
+
+/* Create a new monochrome gcoBRUSH object. */
+gceSTATUS
+gcoBRUSH_ConstructMonochrome(
+    IN gcoHAL Hal,
+    IN gctUINT32 OriginX,
+    IN gctUINT32 OriginY,
+    IN gctUINT32 ColorConvert,
+    IN gctUINT32 FgColor,
+    IN gctUINT32 BgColor,
+    IN gctUINT64 Bits,
+    IN gctUINT64 Mask,
+    gcoBRUSH * Brush
+    );
+
+/* Create a color gcoBRUSH object. */
+gceSTATUS
+gcoBRUSH_ConstructColor(
+    IN gcoHAL Hal,
+    IN gctUINT32 OriginX,
+    IN gctUINT32 OriginY,
+    IN gctPOINTER Address,
+    IN gceSURF_FORMAT Format,
+    IN gctUINT64 Mask,
+    gcoBRUSH * Brush
+    );
+
+/* Destroy an gcoBRUSH object. */
+gceSTATUS
+gcoBRUSH_Destroy(
+    IN gcoBRUSH Brush
+    );
+
+/******************************************************************************\
+******************************** gcoSURF Object *******************************
+\******************************************************************************/
+
+/* Set cipping rectangle. */
+gceSTATUS
+gcoSURF_SetClipping(
+    IN gcoSURF Surface
+    );
+
+/* Clear one or more rectangular areas. */
+gceSTATUS
+gcoSURF_Clear2D(
+    IN gcoSURF DestSurface,
+    IN gctUINT32 RectCount,
+    IN gcsRECT_PTR DestRect,
+    IN gctUINT32 LoColor,
+    IN gctUINT32 HiColor
+    );
+
+/* Draw one or more Bresenham lines. */
+gceSTATUS
+gcoSURF_Line(
+    IN gcoSURF Surface,
+    IN gctUINT32 LineCount,
+    IN gcsRECT_PTR Position,
+    IN gcoBRUSH Brush,
+    IN gctUINT8 FgRop,
+    IN gctUINT8 BgRop
+    );
+
+/* Generic rectangular blit. */
+gceSTATUS
+gcoSURF_Blit(
+    IN OPTIONAL gcoSURF SrcSurface,
+    IN gcoSURF DestSurface,
+    IN gctUINT32 RectCount,
+    IN OPTIONAL gcsRECT_PTR SrcRect,
+    IN gcsRECT_PTR DestRect,
+    IN OPTIONAL gcoBRUSH Brush,
+    IN gctUINT8 FgRop,
+    IN gctUINT8 BgRop,
+    IN OPTIONAL gceSURF_TRANSPARENCY Transparency,
+    IN OPTIONAL gctUINT32 TransparencyColor,
+    IN OPTIONAL gctPOINTER Mask,
+    IN OPTIONAL gceSURF_MONOPACK MaskPack
+    );
+
+/* Monochrome blit. */
+gceSTATUS
+gcoSURF_MonoBlit(
+    IN gcoSURF DestSurface,
+    IN gctPOINTER Source,
+    IN gceSURF_MONOPACK SourcePack,
+    IN gcsPOINT_PTR SourceSize,
+    IN gcsPOINT_PTR SourceOrigin,
+    IN gcsRECT_PTR DestRect,
+    IN OPTIONAL gcoBRUSH Brush,
+    IN gctUINT8 FgRop,
+    IN gctUINT8 BgRop,
+    IN gctBOOL ColorConvert,
+    IN gctUINT8 MonoTransparency,
+    IN gceSURF_TRANSPARENCY Transparency,
+    IN gctUINT32 FgColor,
+    IN gctUINT32 BgColor
+    );
+
+/* Filter blit. */
+gceSTATUS
+gcoSURF_FilterBlit(
+    IN gcoSURF SrcSurface,
+    IN gcoSURF DestSurface,
+    IN gcsRECT_PTR SrcRect,
+    IN gcsRECT_PTR DestRect,
+    IN gcsRECT_PTR DestSubRect
+    );
+
+/* Enable alpha blending engine in the hardware and disengage the ROP engine. */
+gceSTATUS
+gcoSURF_EnableAlphaBlend(
+    IN gcoSURF Surface,
+    IN gctUINT8 SrcGlobalAlphaValue,
+    IN gctUINT8 DstGlobalAlphaValue,
+    IN gceSURF_PIXEL_ALPHA_MODE SrcAlphaMode,
+    IN gceSURF_PIXEL_ALPHA_MODE DstAlphaMode,
+    IN gceSURF_GLOBAL_ALPHA_MODE SrcGlobalAlphaMode,
+    IN gceSURF_GLOBAL_ALPHA_MODE DstGlobalAlphaMode,
+    IN gceSURF_BLEND_FACTOR_MODE SrcFactorMode,
+    IN gceSURF_BLEND_FACTOR_MODE DstFactorMode,
+    IN gceSURF_PIXEL_COLOR_MODE SrcColorMode,
+    IN gceSURF_PIXEL_COLOR_MODE DstColorMode
+    );
+
+/* Disable alpha blending engine in the hardware and engage the ROP engine. */
+gceSTATUS
+gcoSURF_DisableAlphaBlend(
+    IN gcoSURF Surface
+    );
+
+/* Copy a rectangular area with format conversion. */
+gceSTATUS
+gcoSURF_CopyPixels(
+    IN gcoSURF Source,
+    IN gcoSURF Target,
+    IN gctINT SourceX,
+    IN gctINT SourceY,
+    IN gctINT TargetX,
+    IN gctINT TargetY,
+    IN gctINT Width,
+    IN gctINT Height
+    );
+
+/* Read surface pixel. */
+gceSTATUS
+gcoSURF_ReadPixel(
+    IN gcoSURF Surface,
+    IN gctPOINTER Memory,
+    IN gctINT X,
+    IN gctINT Y,
+    IN gceSURF_FORMAT Format,
+    OUT gctPOINTER PixelValue
+    );
+
+/* Write surface pixel. */
+gceSTATUS
+gcoSURF_WritePixel(
+    IN gcoSURF Surface,
+    IN gctPOINTER Memory,
+    IN gctINT X,
+    IN gctINT Y,
+    IN gceSURF_FORMAT Format,
+    IN gctPOINTER PixelValue
+    );
+
+gceSTATUS
+gcoSURF_SetDither(
+    IN gcoSURF Surface,
+    IN gctBOOL Dither
+    );
+
+gceSTATUS
+gcoSURF_Set2DSource(
+    gcoSURF Surface,
+    gceSURF_ROTATION Rotation
+    );
+
+gceSTATUS
+gcoSURF_Set2DTarget(
+    gcoSURF Surface,
+    gceSURF_ROTATION Rotation
+    );
+
+/******************************************************************************\
+********************************** gco2D Object *********************************
+\******************************************************************************/
+
+/* Construct a new gco2D object. */
+gceSTATUS
+gco2D_Construct(
+    IN gcoHAL Hal,
+    OUT gco2D * Hardware
+    );
+
+/* Destroy an gco2D object. */
+gceSTATUS
+gco2D_Destroy(
+    IN gco2D Hardware
+    );
+
+/* Sets the maximum number of brushes in the brush cache. */
+gceSTATUS
+gco2D_SetBrushLimit(
+    IN gco2D Hardware,
+    IN gctUINT MaxCount
+    );
+
+/* Flush the brush. */
+gceSTATUS
+gco2D_FlushBrush(
+    IN gco2D Engine,
+    IN gcoBRUSH Brush,
+    IN gceSURF_FORMAT Format
+    );
+
+/* Program the specified solid color brush. */
+gceSTATUS
+gco2D_LoadSolidBrush(
+    IN gco2D Engine,
+    IN gceSURF_FORMAT Format,
+    IN gctUINT32 ColorConvert,
+    IN gctUINT32 Color,
+    IN gctUINT64 Mask
+    );
+
+gceSTATUS
+gco2D_LoadMonochromeBrush(
+    IN gco2D Engine,
+    IN gctUINT32 OriginX,
+    IN gctUINT32 OriginY,
+    IN gctUINT32 ColorConvert,
+    IN gctUINT32 FgColor,
+    IN gctUINT32 BgColor,
+    IN gctUINT64 Bits,
+    IN gctUINT64 Mask
+    );
+
+gceSTATUS
+gco2D_LoadColorBrush(
+    IN gco2D Engine,
+    IN gctUINT32 OriginX,
+    IN gctUINT32 OriginY,
+    IN gctUINT32 Address,
+    IN gceSURF_FORMAT Format,
+    IN gctUINT64 Mask
+    );
+
+/* Configure monochrome source. */
+gceSTATUS
+gco2D_SetMonochromeSource(
+    IN gco2D Engine,
+    IN gctBOOL ColorConvert,
+    IN gctUINT8 MonoTransparency,
+    IN gceSURF_MONOPACK DataPack,
+    IN gctBOOL CoordRelative,
+    IN gceSURF_TRANSPARENCY Transparency,
+    IN gctUINT32 FgColor,
+    IN gctUINT32 BgColor
+    );
+
+/* Configure color source. */
+gceSTATUS
+gco2D_SetColorSource(
+    IN gco2D Engine,
+    IN gctUINT32 Address,
+    IN gctUINT32 Stride,
+    IN gceSURF_FORMAT Format,
+    IN gceSURF_ROTATION Rotation,
+    IN gctUINT32 SurfaceWidth,
+    IN gctBOOL CoordRelative,
+    IN gceSURF_TRANSPARENCY Transparency,
+    IN gctUINT32 TransparencyColor
+    );
+
+/* Configure color source extension for full rotation. */
+gceSTATUS
+gco2D_SetColorSourceEx(
+    IN gco2D Engine,
+    IN gctUINT32 Address,
+    IN gctUINT32 Stride,
+    IN gceSURF_FORMAT Format,
+    IN gceSURF_ROTATION Rotation,
+    IN gctUINT32 SurfaceWidth,
+    IN gctUINT32 SurfaceHeight,
+    IN gctBOOL CoordRelative,
+    IN gceSURF_TRANSPARENCY Transparency,
+    IN gctUINT32 TransparencyColor
+    );
+
+/* Configure color source. */
+gceSTATUS
+gco2D_SetColorSourceAdvanced(
+    IN gco2D Engine,
+    IN gctUINT32 Address,
+    IN gctUINT32 Stride,
+    IN gceSURF_FORMAT Format,
+    IN gceSURF_ROTATION Rotation,
+    IN gctUINT32 SurfaceWidth,
+    IN gctUINT32 SurfaceHeight,
+    IN gctBOOL CoordRelative
+    );
+
+gceSTATUS
+gco2D_SetColorSourceN(
+    IN gco2D Engine,
+    IN gctUINT32 Address,
+    IN gctUINT32 Stride,
+    IN gceSURF_FORMAT Format,
+    IN gceSURF_ROTATION Rotation,
+    IN gctUINT32 SurfaceWidth,
+    IN gctUINT32 SurfaceHeight,
+    IN gctUINT32 SurfaceNumber
+    );
+
+/* Configure masked color source. */
+gceSTATUS
+gco2D_SetMaskedSource(
+    IN gco2D Engine,
+    IN gctUINT32 Address,
+    IN gctUINT32 Stride,
+    IN gceSURF_FORMAT Format,
+    IN gctBOOL CoordRelative,
+    IN gceSURF_MONOPACK MaskPack
+    );
+
+/* Configure masked color source extension for full rotation. */
+gceSTATUS
+gco2D_SetMaskedSourceEx(
+    IN gco2D Engine,
+    IN gctUINT32 Address,
+    IN gctUINT32 Stride,
+    IN gceSURF_FORMAT Format,
+    IN gctBOOL CoordRelative,
+    IN gceSURF_MONOPACK MaskPack,
+    IN gceSURF_ROTATION Rotation,
+    IN gctUINT32 SurfaceWidth,
+    IN gctUINT32 SurfaceHeight
+    );
+
+/* Setup the source rectangle. */
+gceSTATUS
+gco2D_SetSource(
+    IN gco2D Engine,
+    IN gcsRECT_PTR SrcRect
+    );
+
+/* Set clipping rectangle. */
+gceSTATUS
+gco2D_SetClipping(
+    IN gco2D Engine,
+    IN gcsRECT_PTR Rect
+    );
+
+/* Configure destination. */
+gceSTATUS
+gco2D_SetTarget(
+    IN gco2D Engine,
+    IN gctUINT32 Address,
+    IN gctUINT32 Stride,
+    IN gceSURF_ROTATION Rotation,
+    IN gctUINT32 SurfaceWidth
+    );
+
+/* Configure destination extension for full rotation. */
+gceSTATUS
+gco2D_SetTargetEx(
+    IN gco2D Engine,
+    IN gctUINT32 Address,
+    IN gctUINT32 Stride,
+    IN gceSURF_ROTATION Rotation,
+    IN gctUINT32 SurfaceWidth,
+    IN gctUINT32 SurfaceHeight
+    );
+
+/* Calculate and program the stretch factors. */
+gceSTATUS
+gco2D_CalcStretchFactor(
+    IN gco2D Engine,
+    IN gctINT32 SrcSize,
+    IN gctINT32 DestSize,
+    OUT gctUINT32_PTR Factor
+    );
+
+gceSTATUS
+gco2D_SetStretchFactors(
+    IN gco2D Engine,
+    IN gctUINT32 HorFactor,
+    IN gctUINT32 VerFactor
+    );
+
+/* Calculate and program the stretch factors based on the rectangles. */
+gceSTATUS
+gco2D_SetStretchRectFactors(
+    IN gco2D Engine,
+    IN gcsRECT_PTR SrcRect,
+    IN gcsRECT_PTR DestRect
+    );
+
+/* Create a new solid color gcoBRUSH object. */
+gceSTATUS
+gco2D_ConstructSingleColorBrush(
+    IN gco2D Engine,
+    IN gctUINT32 ColorConvert,
+    IN gctUINT32 Color,
+    IN gctUINT64 Mask,
+    gcoBRUSH * Brush
+    );
+
+/* Create a new monochrome gcoBRUSH object. */
+gceSTATUS
+gco2D_ConstructMonochromeBrush(
+    IN gco2D Engine,
+    IN gctUINT32 OriginX,
+    IN gctUINT32 OriginY,
+    IN gctUINT32 ColorConvert,
+    IN gctUINT32 FgColor,
+    IN gctUINT32 BgColor,
+    IN gctUINT64 Bits,
+    IN gctUINT64 Mask,
+    gcoBRUSH * Brush
+    );
+
+/* Create a color gcoBRUSH object. */
+gceSTATUS
+gco2D_ConstructColorBrush(
+    IN gco2D Engine,
+    IN gctUINT32 OriginX,
+    IN gctUINT32 OriginY,
+    IN gctPOINTER Address,
+    IN gceSURF_FORMAT Format,
+    IN gctUINT64 Mask,
+    gcoBRUSH * Brush
+    );
+
+/* Clear one or more rectangular areas. */
+gceSTATUS
+gco2D_Clear(
+    IN gco2D Engine,
+    IN gctUINT32 RectCount,
+    IN gcsRECT_PTR Rect,
+    IN gctUINT32 Color32,
+    IN gctUINT8 FgRop,
+    IN gctUINT8 BgRop,
+    IN gceSURF_FORMAT DestFormat
+    );
+
+/* Draw one or more Bresenham lines. */
+gceSTATUS
+gco2D_Line(
+    IN gco2D Engine,
+    IN gctUINT32 LineCount,
+    IN gcsRECT_PTR Position,
+    IN gcoBRUSH Brush,
+    IN gctUINT8 FgRop,
+    IN gctUINT8 BgRop,
+    IN gceSURF_FORMAT DestFormat
+    );
+
+/* Draw one or more Bresenham lines based on the 32-bit color. */
+gceSTATUS
+gco2D_ColorLine(
+    IN gco2D Engine,
+    IN gctUINT32 LineCount,
+    IN gcsRECT_PTR Position,
+    IN gctUINT32 Color32,
+    IN gctUINT8 FgRop,
+    IN gctUINT8 BgRop,
+    IN gceSURF_FORMAT DestFormat
+    );
+
+/* Generic blit. */
+gceSTATUS
+gco2D_Blit(
+    IN gco2D Engine,
+    IN gctUINT32 RectCount,
+    IN gcsRECT_PTR Rect,
+    IN gctUINT8 FgRop,
+    IN gctUINT8 BgRop,
+    IN gceSURF_FORMAT DestFormat
+    );
+
+gceSTATUS
+gco2D_Blend(
+    IN gco2D Engine,
+    IN gctUINT32 SrcCount,
+    IN gctUINT32 RectCount,
+    IN gcsRECT_PTR Rect,
+    IN gctUINT8 FgRop,
+    IN gctUINT8 BgRop,
+    IN gceSURF_FORMAT DestFormat
+    );
+
+/* Batch blit. */
+gceSTATUS
+gco2D_BatchBlit(
+    IN gco2D Engine,
+    IN gctUINT32 RectCount,
+    IN gcsRECT_PTR SrcRect,
+    IN gcsRECT_PTR DestRect,
+    IN gctUINT8 FgRop,
+    IN gctUINT8 BgRop,
+    IN gceSURF_FORMAT DestFormat
+    );
+
+/* Stretch blit. */
+gceSTATUS
+gco2D_StretchBlit(
+    IN gco2D Engine,
+    IN gctUINT32 RectCount,
+    IN gcsRECT_PTR Rect,
+    IN gctUINT8 FgRop,
+    IN gctUINT8 BgRop,
+    IN gceSURF_FORMAT DestFormat
+    );
+
+/* Monochrome blit. */
+gceSTATUS
+gco2D_MonoBlit(
+    IN gco2D Engine,
+    IN gctPOINTER StreamBits,
+    IN gcsPOINT_PTR StreamSize,
+    IN gcsRECT_PTR StreamRect,
+    IN gceSURF_MONOPACK SrcStreamPack,
+    IN gceSURF_MONOPACK DestStreamPack,
+    IN gcsRECT_PTR DestRect,
+    IN gctUINT32 FgRop,
+    IN gctUINT32 BgRop,
+    IN gceSURF_FORMAT DestFormat
+    );
+
+gceSTATUS
+gco2D_MonoBlitEx(
+    IN gco2D        Engine,
+    IN gctPOINTER   StreamBits,
+    IN gctINT32     StreamStride,
+    IN gctINT32     StreamWidth,
+    IN gctINT32     StreamHeight,
+    IN gctINT32     StreamX,
+    IN gctINT32     StreamY,
+    IN gctUINT32    FgColor,
+    IN gctUINT32    BgColor,
+    IN gcsRECT_PTR  SrcRect,
+    IN gcsRECT_PTR  DstRect,
+    IN gctUINT8     FgRop,
+    IN gctUINT8     BgRop
+    );
+
+/* Set kernel size. */
+gceSTATUS
+gco2D_SetKernelSize(
+    IN gco2D Engine,
+    IN gctUINT8 HorKernelSize,
+    IN gctUINT8 VerKernelSize
+    );
+
+/* Set filter type. */
+gceSTATUS
+gco2D_SetFilterType(
+    IN gco2D Engine,
+    IN gceFILTER_TYPE FilterType
+    );
+
+/* Set the filter kernel by user. */
+gceSTATUS
+gco2D_SetUserFilterKernel(
+    IN gco2D Engine,
+    IN gceFILTER_PASS_TYPE PassType,
+    IN gctUINT16_PTR KernelArray
+    );
+
+/* Select the pass(es) to be done for user defined filter. */
+gceSTATUS
+gco2D_EnableUserFilterPasses(
+    IN gco2D Engine,
+    IN gctBOOL HorPass,
+    IN gctBOOL VerPass
+    );
+
+/* Frees the temporary buffer allocated by filter blit operation. */
+gceSTATUS
+gco2D_FreeFilterBuffer(
+    IN gco2D Engine
+    );
+
+/* Filter blit. */
+gceSTATUS
+gco2D_FilterBlit(
+    IN gco2D Engine,
+    IN gctUINT32 SrcAddress,
+    IN gctUINT SrcStride,
+    IN gctUINT32 SrcUAddress,
+    IN gctUINT SrcUStride,
+    IN gctUINT32 SrcVAddress,
+    IN gctUINT SrcVStride,
+    IN gceSURF_FORMAT SrcFormat,
+    IN gceSURF_ROTATION SrcRotation,
+    IN gctUINT32 SrcSurfaceWidth,
+    IN gcsRECT_PTR SrcRect,
+    IN gctUINT32 DestAddress,
+    IN gctUINT DestStride,
+    IN gceSURF_FORMAT DestFormat,
+    IN gceSURF_ROTATION DestRotation,
+    IN gctUINT32 DestSurfaceWidth,
+    IN gcsRECT_PTR DestRect,
+    IN gcsRECT_PTR DestSubRect
+    );
+
+/* Filter blit extension for full rotation. */
+gceSTATUS
+gco2D_FilterBlitEx(
+    IN gco2D Engine,
+    IN gctUINT32 SrcAddress,
+    IN gctUINT SrcStride,
+    IN gctUINT32 SrcUAddress,
+    IN gctUINT SrcUStride,
+    IN gctUINT32 SrcVAddress,
+    IN gctUINT SrcVStride,
+    IN gceSURF_FORMAT SrcFormat,
+    IN gceSURF_ROTATION SrcRotation,
+    IN gctUINT32 SrcSurfaceWidth,
+    IN gctUINT32 SrcSurfaceHeight,
+    IN gcsRECT_PTR SrcRect,
+    IN gctUINT32 DestAddress,
+    IN gctUINT DestStride,
+    IN gceSURF_FORMAT DestFormat,
+    IN gceSURF_ROTATION DestRotation,
+    IN gctUINT32 DestSurfaceWidth,
+    IN gctUINT32 DestSurfaceHeight,
+    IN gcsRECT_PTR DestRect,
+    IN gcsRECT_PTR DestSubRect
+    );
+
+gceSTATUS
+gco2D_FilterBlitEx2(
+    IN gco2D                Engine,
+    IN gctUINT32_PTR        SrcAddresses,
+    IN gctUINT32            SrcAddressNum,
+    IN gctUINT32_PTR        SrcStrides,
+    IN gctUINT32            SrcStrideNum,
+    IN gceTILING            SrcTiling,
+    IN gceSURF_FORMAT       SrcFormat,
+    IN gceSURF_ROTATION     SrcRotation,
+    IN gctUINT32            SrcSurfaceWidth,
+    IN gctUINT32            SrcSurfaceHeight,
+    IN gcsRECT_PTR          SrcRect,
+    IN gctUINT32_PTR        DestAddresses,
+    IN gctUINT32            DestAddressNum,
+    IN gctUINT32_PTR        DestStrides,
+    IN gctUINT32            DestStrideNum,
+    IN gceTILING            DestTiling,
+    IN gceSURF_FORMAT       DestFormat,
+    IN gceSURF_ROTATION     DestRotation,
+    IN gctUINT32            DestSurfaceWidth,
+    IN gctUINT32            DestSurfaceHeight,
+    IN gcsRECT_PTR          DestRect,
+    IN gcsRECT_PTR          DestSubRect
+    );
+
+/* Enable alpha blending engine in the hardware and disengage the ROP engine. */
+gceSTATUS
+gco2D_EnableAlphaBlend(
+    IN gco2D Engine,
+    IN gctUINT8 SrcGlobalAlphaValue,
+    IN gctUINT8 DstGlobalAlphaValue,
+    IN gceSURF_PIXEL_ALPHA_MODE SrcAlphaMode,
+    IN gceSURF_PIXEL_ALPHA_MODE DstAlphaMode,
+    IN gceSURF_GLOBAL_ALPHA_MODE SrcGlobalAlphaMode,
+    IN gceSURF_GLOBAL_ALPHA_MODE DstGlobalAlphaMode,
+    IN gceSURF_BLEND_FACTOR_MODE SrcFactorMode,
+    IN gceSURF_BLEND_FACTOR_MODE DstFactorMode,
+    IN gceSURF_PIXEL_COLOR_MODE SrcColorMode,
+    IN gceSURF_PIXEL_COLOR_MODE DstColorMode
+    );
+
+/* Enable alpha blending engine in the hardware. */
+gceSTATUS
+gco2D_EnableAlphaBlendAdvanced(
+    IN gco2D Engine,
+    IN gceSURF_PIXEL_ALPHA_MODE SrcAlphaMode,
+    IN gceSURF_PIXEL_ALPHA_MODE DstAlphaMode,
+    IN gceSURF_GLOBAL_ALPHA_MODE SrcGlobalAlphaMode,
+    IN gceSURF_GLOBAL_ALPHA_MODE DstGlobalAlphaMode,
+    IN gceSURF_BLEND_FACTOR_MODE SrcFactorMode,
+    IN gceSURF_BLEND_FACTOR_MODE DstFactorMode
+    );
+
+/* Enable alpha blending engine with Porter Duff rule. */
+gceSTATUS
+gco2D_SetPorterDuffBlending(
+    IN gco2D Engine,
+    IN gce2D_PORTER_DUFF_RULE Rule
+    );
+
+/* Disable alpha blending engine in the hardware and engage the ROP engine. */
+gceSTATUS
+gco2D_DisableAlphaBlend(
+    IN gco2D Engine
+    );
+
+/* Retrieve the maximum number of 32-bit data chunks for a single DE command. */
+gctUINT32
+gco2D_GetMaximumDataCount(
+    void
+    );
+
+/* Retrieve the maximum number of rectangles, that can be passed in a single DE command. */
+gctUINT32
+gco2D_GetMaximumRectCount(
+    void
+    );
+
+/* Returns the pixel alignment of the surface. */
+gceSTATUS
+gco2D_GetPixelAlignment(
+    gceSURF_FORMAT Format,
+    gcsPOINT_PTR Alignment
+    );
+
+/* Retrieve monochrome stream pack size. */
+gceSTATUS
+gco2D_GetPackSize(
+    IN gceSURF_MONOPACK StreamPack,
+    OUT gctUINT32 * PackWidth,
+    OUT gctUINT32 * PackHeight
+    );
+
+/* Flush the 2D pipeline. */
+gceSTATUS
+gco2D_Flush(
+    IN gco2D Engine
+    );
+
+/* Load 256-entry color table for INDEX8 source surfaces. */
+gceSTATUS
+gco2D_LoadPalette(
+    IN gco2D Engine,
+    IN gctUINT FirstIndex,
+    IN gctUINT IndexCount,
+    IN gctPOINTER ColorTable,
+    IN gctBOOL ColorConvert
+    );
+
+/* Enable/disable 2D BitBlt mirrorring. */
+gceSTATUS
+gco2D_SetBitBlitMirror(
+    IN gco2D Engine,
+    IN gctBOOL HorizontalMirror,
+    IN gctBOOL VerticalMirror
+    );
+
+/*
+ * Set the transparency for source, destination and pattern.
+ * It also enable or disable the DFB color key mode.
+ */
+gceSTATUS
+gco2D_SetTransparencyAdvancedEx(
+    IN gco2D Engine,
+    IN gce2D_TRANSPARENCY SrcTransparency,
+    IN gce2D_TRANSPARENCY DstTransparency,
+    IN gce2D_TRANSPARENCY PatTransparency,
+    IN gctBOOL EnableDFBColorKeyMode
+    );
+
+/* Set the transparency for source, destination and pattern. */
+gceSTATUS
+gco2D_SetTransparencyAdvanced(
+    IN gco2D Engine,
+    IN gce2D_TRANSPARENCY SrcTransparency,
+    IN gce2D_TRANSPARENCY DstTransparency,
+    IN gce2D_TRANSPARENCY PatTransparency
+    );
+
+/* Set the source color key. */
+gceSTATUS
+gco2D_SetSourceColorKeyAdvanced(
+    IN gco2D Engine,
+    IN gctUINT32 ColorKey
+    );
+
+/* Set the source color key range. */
+gceSTATUS
+gco2D_SetSourceColorKeyRangeAdvanced(
+    IN gco2D Engine,
+    IN gctUINT32 ColorKeyLow,
+    IN gctUINT32 ColorKeyHigh
+    );
+
+/* Set the target color key. */
+gceSTATUS
+gco2D_SetTargetColorKeyAdvanced(
+    IN gco2D Engine,
+    IN gctUINT32 ColorKey
+    );
+
+/* Set the target color key range. */
+gceSTATUS
+gco2D_SetTargetColorKeyRangeAdvanced(
+    IN gco2D Engine,
+    IN gctUINT32 ColorKeyLow,
+    IN gctUINT32 ColorKeyHigh
+    );
+
+/* Set the YUV color space mode. */
+gceSTATUS
+gco2D_SetYUVColorMode(
+    IN gco2D Engine,
+    IN gce2D_YUV_COLOR_MODE Mode
+    );
+
+/* Setup the source global color value in ARGB8 format. */
+gceSTATUS gco2D_SetSourceGlobalColorAdvanced(
+    IN gco2D Engine,
+    IN gctUINT32 Color32
+    );
+
+/* Setup the target global color value in ARGB8 format. */
+gceSTATUS gco2D_SetTargetGlobalColorAdvanced(
+    IN gco2D Engine,
+    IN gctUINT32 Color32
+    );
+
+/* Setup the source and target pixel multiply modes. */
+gceSTATUS
+gco2D_SetPixelMultiplyModeAdvanced(
+    IN gco2D Engine,
+    IN gce2D_PIXEL_COLOR_MULTIPLY_MODE SrcPremultiplySrcAlpha,
+    IN gce2D_PIXEL_COLOR_MULTIPLY_MODE DstPremultiplyDstAlpha,
+    IN gce2D_GLOBAL_COLOR_MULTIPLY_MODE SrcPremultiplyGlobalMode,
+    IN gce2D_PIXEL_COLOR_MULTIPLY_MODE DstDemultiplyDstAlpha
+    );
+
+/* Set the GPU clock cycles after which the idle engine will keep auto-flushing. */
+gceSTATUS
+gco2D_SetAutoFlushCycles(
+    IN gco2D Engine,
+    IN gctUINT32 Cycles
+    );
+
+#if VIVANTE_PROFILER
+/* Read the profile registers available in the 2D engine and sets them in the profile.
+   The function will also reset the pixelsRendered counter every time.
+*/
+gceSTATUS
+gco2D_ProfileEngine(
+    IN gco2D Engine,
+    OPTIONAL gcs2D_PROFILE_PTR Profile
+    );
+#endif
+
+/* Enable or disable 2D dithering. */
+gceSTATUS
+gco2D_EnableDither(
+    IN gco2D Engine,
+    IN gctBOOL Enable
+    );
+
+gceSTATUS
+gco2D_SetGenericSource(
+    IN gco2D               Engine,
+    IN gctUINT32_PTR       Addresses,
+    IN gctUINT32           AddressNum,
+    IN gctUINT32_PTR       Strides,
+    IN gctUINT32           StrideNum,
+    IN gceTILING           Tiling,
+    IN gceSURF_FORMAT      Format,
+    IN gceSURF_ROTATION    Rotation,
+    IN gctUINT32           SurfaceWidth,
+    IN gctUINT32           SurfaceHeight
+);
+
+gceSTATUS
+gco2D_SetGenericTarget(
+    IN gco2D               Engine,
+    IN gctUINT32_PTR       Addresses,
+    IN gctUINT32           AddressNum,
+    IN gctUINT32_PTR       Strides,
+    IN gctUINT32           StrideNum,
+    IN gceTILING           Tiling,
+    IN gceSURF_FORMAT      Format,
+    IN gceSURF_ROTATION    Rotation,
+    IN gctUINT32           SurfaceWidth,
+    IN gctUINT32           SurfaceHeight
+);
+
+gceSTATUS
+gco2D_SetCurrentSourceIndex(
+    IN gco2D        Engine,
+    IN gctUINT32    SrcIndex
+    );
+
+gceSTATUS
+gco2D_MultiSourceBlit(
+    IN gco2D Engine,
+    IN gctUINT32 SourceMask,
+    IN gcsRECT_PTR DestRect,
+    IN gctUINT32 RectCount
+    );
+
+gceSTATUS
+gco2D_SetROP(
+    IN gco2D Engine,
+    IN gctUINT8 FgRop,
+    IN gctUINT8 BgRop
+    );
+
+gceSTATUS
+gco2D_SetGdiStretchMode(
+    IN gco2D Engine,
+    IN gctBOOL Enable
+    );
+
+gceSTATUS
+gco2D_SetSourceTileStatus(
+    IN gco2D Engine,
+    IN gce2D_TILE_STATUS_CONFIG TSControl,
+    IN gceSURF_FORMAT CompressedFormat,
+    IN gctUINT32 ClearValue,
+    IN gctUINT32 GpuAddress
+    );
+
+gceSTATUS
+gco2D_SetTargetTileStatus(
+    IN gco2D Engine,
+    IN gce2D_TILE_STATUS_CONFIG TileStatusConfig,
+    IN gceSURF_FORMAT CompressedFormat,
+    IN gctUINT32 ClearValue,
+    IN gctUINT32 GpuAddress
+    );
+
+gceSTATUS
+gco2D_QueryU32(
+    IN gco2D Engine,
+    IN gce2D_QUERY Item,
+    OUT gctUINT32_PTR Value
+    );
+
+gceSTATUS
+gco2D_SetStateU32(
+    IN gco2D Engine,
+    IN gce2D_STATE State,
+    IN gctUINT32 Value
+    );
+
+gceSTATUS
+gco2D_SetStateArrayI32(
+    IN gco2D Engine,
+    IN gce2D_STATE State,
+    IN gctINT32_PTR Array,
+    IN gctINT32 ArraySize
+    );
+
+gceSTATUS
+gco2D_SetStateArrayU32(
+    IN gco2D Engine,
+    IN gce2D_STATE State,
+    IN gctUINT32_PTR Array,
+    IN gctINT32 ArraySize
+    );
+
+gceSTATUS
+gco2D_SetTargetRect(
+    IN gco2D Engine,
+    IN gcsRECT_PTR Rect
+    );
+
+gceSTATUS
+gco2D_Set2DEngine(
+    IN gco2D Engine
+    );
+
+gceSTATUS
+gco2D_UnSet2DEngine(
+    IN gco2D Engine
+    );
+
+gceSTATUS
+gco2D_Get2DEngine(
+    OUT gco2D * Engine
+    );
+
+gceSTATUS
+gco2D_Commit(
+    IN gco2D Engine,
+    IN gctBOOL Stall
+    );
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* __gc_hal_raster_h_ */
diff --git a/src/hal/kernel/inc/gc_hal_rename.h b/src/hal/kernel/inc/gc_hal_rename.h
new file mode 100755
index 0000000..75c2658
--- /dev/null
+++ b/src/hal/kernel/inc/gc_hal_rename.h
@@ -0,0 +1,277 @@
+/****************************************************************************
+*
+*    The MIT License (MIT)
+*
+*    Copyright (c) 2014 Vivante Corporation
+*
+*    Permission is hereby granted, free of charge, to any person obtaining a
+*    copy of this software and associated documentation files (the "Software"),
+*    to deal in the Software without restriction, including without limitation
+*    the rights to use, copy, modify, merge, publish, distribute, sublicense,
+*    and/or sell copies of the Software, and to permit persons to whom the
+*    Software is furnished to do so, subject to the following conditions:
+*
+*    The above copyright notice and this permission notice shall be included in
+*    all copies or substantial portions of the Software.
+*
+*    THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+*    IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+*    FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+*    AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+*    LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+*    FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+*    DEALINGS IN THE SOFTWARE.
+*
+*****************************************************************************
+*
+*    The GPL License (GPL)
+*
+*    Copyright (C) 2014  Vivante Corporation
+*
+*    This program is free software; you can redistribute it and/or
+*    modify it under the terms of the GNU General Public License
+*    as published by the Free Software Foundation; either version 2
+*    of the License, or (at your option) any later version.
+*
+*    This program is distributed in the hope that it will be useful,
+*    but WITHOUT ANY WARRANTY; without even the implied warranty of
+*    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+*    GNU General Public License for more details.
+*
+*    You should have received a copy of the GNU General Public License
+*    along with this program; if not, write to the Free Software Foundation,
+*    Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+*
+*****************************************************************************
+*
+*    Note: This software is released under dual MIT and GPL licenses. A
+*    recipient may use this file under the terms of either the MIT license or
+*    GPL License. If you wish to use only one license not the other, you can
+*    indicate your decision by deleting one of the above license notices in your
+*    version of this file.
+*
+*****************************************************************************/
+
+
+#ifndef __gc_hal_rename_h_
+#define __gc_hal_rename_h_
+
+
+#if defined(_HAL2D_APPENDIX)
+
+#define _HAL2D_RENAME_2(api, appendix)  api ## appendix
+#define _HAL2D_RENAME_1(api, appendix)  _HAL2D_RENAME_2(api, appendix)
+#define gcmHAL2D(api)                   _HAL2D_RENAME_1(api, _HAL2D_APPENDIX)
+
+
+#define gckOS_Construct                 gcmHAL2D(gckOS_Construct)
+#define gckOS_Destroy                   gcmHAL2D(gckOS_Destroy)
+#define gckOS_QueryVideoMemory          gcmHAL2D(gckOS_QueryVideoMemory)
+#define gckOS_Allocate                  gcmHAL2D(gckOS_Allocate)
+#define gckOS_Free                      gcmHAL2D(gckOS_Free)
+#define gckOS_AllocateMemory            gcmHAL2D(gckOS_AllocateMemory)
+#define gckOS_FreeMemory                gcmHAL2D(gckOS_FreeMemory)
+#define gckOS_AllocatePagedMemory       gcmHAL2D(gckOS_AllocatePagedMemory)
+#define gckOS_AllocatePagedMemoryEx     gcmHAL2D(gckOS_AllocatePagedMemoryEx)
+#define gckOS_LockPages                 gcmHAL2D(gckOS_LockPages)
+#define gckOS_MapPages                  gcmHAL2D(gckOS_MapPages)
+#define gckOS_UnlockPages               gcmHAL2D(gckOS_UnlockPages)
+#define gckOS_FreePagedMemory           gcmHAL2D(gckOS_FreePagedMemory)
+#define gckOS_AllocateNonPagedMemory    gcmHAL2D(gckOS_AllocateNonPagedMemory)
+#define gckOS_FreeNonPagedMemory        gcmHAL2D(gckOS_FreeNonPagedMemory)
+#define gckOS_AllocateContiguous        gcmHAL2D(gckOS_AllocateContiguous)
+#define gckOS_FreeContiguous            gcmHAL2D(gckOS_FreeContiguous)
+#define gckOS_GetPageSize               gcmHAL2D(gckOS_GetPageSize)
+#define gckOS_GetPhysicalAddress        gcmHAL2D(gckOS_GetPhysicalAddress)
+#define gckOS_UserLogicalToPhysical     gcmHAL2D(gckOS_UserLogicalToPhysical)
+#define gckOS_GetPhysicalAddressProcess gcmHAL2D(gckOS_GetPhysicalAddressProcess)
+#define gckOS_MapPhysical               gcmHAL2D(gckOS_MapPhysical)
+#define gckOS_UnmapPhysical             gcmHAL2D(gckOS_UnmapPhysical)
+#define gckOS_ReadRegister              gcmHAL2D(gckOS_ReadRegister)
+#define gckOS_WriteRegister             gcmHAL2D(gckOS_WriteRegister)
+#define gckOS_WriteMemory               gcmHAL2D(gckOS_WriteMemory)
+#define gckOS_MapMemory                 gcmHAL2D(gckOS_MapMemory)
+#define gckOS_UnmapMemory               gcmHAL2D(gckOS_UnmapMemory)
+#define gckOS_UnmapMemoryEx             gcmHAL2D(gckOS_UnmapMemoryEx)
+#define gckOS_CreateMutex               gcmHAL2D(gckOS_CreateMutex)
+#define gckOS_DeleteMutex               gcmHAL2D(gckOS_DeleteMutex)
+#define gckOS_AcquireMutex              gcmHAL2D(gckOS_AcquireMutex)
+#define gckOS_ReleaseMutex              gcmHAL2D(gckOS_ReleaseMutex)
+#define gckOS_AtomicExchange            gcmHAL2D(gckOS_AtomicExchange)
+#define gckOS_AtomicExchangePtr         gcmHAL2D(gckOS_AtomicExchangePtr)
+#define gckOS_AtomConstruct             gcmHAL2D(gckOS_AtomConstruct)
+#define gckOS_AtomDestroy               gcmHAL2D(gckOS_AtomDestroy)
+#define gckOS_AtomGet                   gcmHAL2D(gckOS_AtomGet)
+#define gckOS_AtomIncrement             gcmHAL2D(gckOS_AtomIncrement)
+#define gckOS_AtomDecrement             gcmHAL2D(gckOS_AtomDecrement)
+#define gckOS_Delay                     gcmHAL2D(gckOS_Delay)
+#define gckOS_GetTime                   gcmHAL2D(gckOS_GetTime)
+#define gckOS_MemoryBarrier             gcmHAL2D(gckOS_MemoryBarrier)
+#define gckOS_MapUserPointer            gcmHAL2D(gckOS_MapUserPointer)
+#define gckOS_UnmapUserPointer          gcmHAL2D(gckOS_UnmapUserPointer)
+#define gckOS_QueryNeedCopy             gcmHAL2D(gckOS_QueryNeedCopy)
+#define gckOS_CopyFromUserData          gcmHAL2D(gckOS_CopyFromUserData)
+#define gckOS_CopyToUserData            gcmHAL2D(gckOS_CopyToUserData)
+#define gckOS_SuspendInterrupt          gcmHAL2D(gckOS_SuspendInterrupt)
+#define gckOS_ResumeInterrupt           gcmHAL2D(gckOS_ResumeInterrupt)
+#define gckOS_GetBaseAddress            gcmHAL2D(gckOS_GetBaseAddress)
+#define gckOS_MemCopy                   gcmHAL2D(gckOS_MemCopy)
+#define gckOS_ZeroMemory                gcmHAL2D(gckOS_ZeroMemory)
+#define gckOS_DeviceControl             gcmHAL2D(gckOS_DeviceControl)
+#define gckOS_GetProcessID              gcmHAL2D(gckOS_GetProcessID)
+#define gckOS_GetThreadID               gcmHAL2D(gckOS_GetThreadID)
+#define gckOS_CreateSignal              gcmHAL2D(gckOS_CreateSignal)
+#define gckOS_DestroySignal             gcmHAL2D(gckOS_DestroySignal)
+#define gckOS_Signal                    gcmHAL2D(gckOS_Signal)
+#define gckOS_WaitSignal                gcmHAL2D(gckOS_WaitSignal)
+#define gckOS_MapSignal                 gcmHAL2D(gckOS_MapSignal)
+#define gckOS_MapUserMemory             gcmHAL2D(gckOS_MapUserMemory)
+#define gckOS_UnmapUserMemory           gcmHAL2D(gckOS_UnmapUserMemory)
+#define gckOS_CreateUserSignal          gcmHAL2D(gckOS_CreateUserSignal)
+#define gckOS_DestroyUserSignal         gcmHAL2D(gckOS_DestroyUserSignal)
+#define gckOS_WaitUserSignal            gcmHAL2D(gckOS_WaitUserSignal)
+#define gckOS_SignalUserSignal          gcmHAL2D(gckOS_SignalUserSignal)
+#define gckOS_UserSignal                gcmHAL2D(gckOS_UserSignal)
+#define gckOS_UserSignal                gcmHAL2D(gckOS_UserSignal)
+#define gckOS_CacheClean                gcmHAL2D(gckOS_CacheClean)
+#define gckOS_CacheFlush                gcmHAL2D(gckOS_CacheFlush)
+#define gckOS_SetDebugLevel             gcmHAL2D(gckOS_SetDebugLevel)
+#define gckOS_SetDebugZone              gcmHAL2D(gckOS_SetDebugZone)
+#define gckOS_SetDebugLevelZone         gcmHAL2D(gckOS_SetDebugLevelZone)
+#define gckOS_SetDebugZones             gcmHAL2D(gckOS_SetDebugZones)
+#define gckOS_SetDebugFile              gcmHAL2D(gckOS_SetDebugFile)
+#define gckOS_Broadcast                 gcmHAL2D(gckOS_Broadcast)
+#define gckOS_SetGPUPower               gcmHAL2D(gckOS_SetGPUPower)
+#define gckOS_CreateSemaphore           gcmHAL2D(gckOS_CreateSemaphore)
+#define gckOS_DestroySemaphore          gcmHAL2D(gckOS_DestroySemaphore)
+#define gckOS_AcquireSemaphore          gcmHAL2D(gckOS_AcquireSemaphore)
+#define gckOS_ReleaseSemaphore          gcmHAL2D(gckOS_ReleaseSemaphore)
+#define gckHEAP_Construct               gcmHAL2D(gckHEAP_Construct)
+#define gckHEAP_Destroy                 gcmHAL2D(gckHEAP_Destroy)
+#define gckHEAP_Allocate                gcmHAL2D(gckHEAP_Allocate)
+#define gckHEAP_Free                    gcmHAL2D(gckHEAP_Free)
+#define gckHEAP_ProfileStart            gcmHAL2D(gckHEAP_ProfileStart)
+#define gckHEAP_ProfileEnd              gcmHAL2D(gckHEAP_ProfileEnd)
+#define gckHEAP_Test                    gcmHAL2D(gckHEAP_Test)
+#define gckVIDMEM_Construct             gcmHAL2D(gckVIDMEM_Construct)
+#define gckVIDMEM_Destroy               gcmHAL2D(gckVIDMEM_Destroy)
+#define gckVIDMEM_Allocate              gcmHAL2D(gckVIDMEM_Allocate)
+#define gckVIDMEM_AllocateLinear        gcmHAL2D(gckVIDMEM_AllocateLinear)
+#define gckVIDMEM_Free                  gcmHAL2D(gckVIDMEM_Free)
+#define gckVIDMEM_Lock                  gcmHAL2D(gckVIDMEM_Lock)
+#define gckVIDMEM_Unlock                gcmHAL2D(gckVIDMEM_Unlock)
+#define gckVIDMEM_ConstructVirtual      gcmHAL2D(gckVIDMEM_ConstructVirtual)
+#define gckVIDMEM_DestroyVirtual        gcmHAL2D(gckVIDMEM_DestroyVirtual)
+#define gckKERNEL_Construct             gcmHAL2D(gckKERNEL_Construct)
+#define gckKERNEL_Destroy               gcmHAL2D(gckKERNEL_Destroy)
+#define gckKERNEL_Dispatch              gcmHAL2D(gckKERNEL_Dispatch)
+#define gckKERNEL_QueryVideoMemory      gcmHAL2D(gckKERNEL_QueryVideoMemory)
+#define gckKERNEL_GetVideoMemoryPool    gcmHAL2D(gckKERNEL_GetVideoMemoryPool)
+#define gckKERNEL_MapVideoMemory        gcmHAL2D(gckKERNEL_MapVideoMemory)
+#define gckKERNEL_UnmapVideoMemory      gcmHAL2D(gckKERNEL_UnmapVideoMemory)
+#define gckKERNEL_MapMemory             gcmHAL2D(gckKERNEL_MapMemory)
+#define gckKERNEL_UnmapMemory           gcmHAL2D(gckKERNEL_UnmapMemory)
+#define gckKERNEL_Notify                gcmHAL2D(gckKERNEL_Notify)
+#define gckKERNEL_QuerySettings         gcmHAL2D(gckKERNEL_QuerySettings)
+#define gckKERNEL_Recovery              gcmHAL2D(gckKERNEL_Recovery)
+#define gckKERNEL_OpenUserData          gcmHAL2D(gckKERNEL_OpenUserData)
+#define gckKERNEL_CloseUserData         gcmHAL2D(gckKERNEL_CloseUserData)
+#define gckHARDWARE_Construct           gcmHAL2D(gckHARDWARE_Construct)
+#define gckHARDWARE_Destroy             gcmHAL2D(gckHARDWARE_Destroy)
+#define gckHARDWARE_QuerySystemMemory   gcmHAL2D(gckHARDWARE_QuerySystemMemory)
+#define gckHARDWARE_BuildVirtualAddress     gcmHAL2D(gckHARDWARE_BuildVirtualAddress)
+#define gckHARDWARE_QueryCommandBuffer      gcmHAL2D(gckHARDWARE_QueryCommandBuffer)
+#define gckHARDWARE_WaitLink            gcmHAL2D(gckHARDWARE_WaitLink)
+#define gckHARDWARE_Execute             gcmHAL2D(gckHARDWARE_Execute)
+#define gckHARDWARE_End                 gcmHAL2D(gckHARDWARE_End)
+#define gckHARDWARE_Nop                 gcmHAL2D(gckHARDWARE_Nop)
+#define gckHARDWARE_PipeSelect          gcmHAL2D(gckHARDWARE_PipeSelect)
+#define gckHARDWARE_Link                gcmHAL2D(gckHARDWARE_Link)
+#define gckHARDWARE_Event               gcmHAL2D(gckHARDWARE_Event)
+#define gckHARDWARE_QueryMemory         gcmHAL2D(gckHARDWARE_QueryMemory)
+#define gckHARDWARE_QueryChipIdentity   gcmHAL2D(gckHARDWARE_QueryChipIdentity)
+#define gckHARDWARE_QueryChipSpecs      gcmHAL2D(gckHARDWARE_QueryChipSpecs)
+#define gckHARDWARE_QueryShaderCaps     gcmHAL2D(gckHARDWARE_QueryShaderCaps)
+#define gckHARDWARE_ConvertFormat       gcmHAL2D(gckHARDWARE_ConvertFormat)
+#define gckHARDWARE_SplitMemory         gcmHAL2D(gckHARDWARE_SplitMemory)
+#define gckHARDWARE_AlignToTile         gcmHAL2D(gckHARDWARE_AlignToTile)
+#define gckHARDWARE_UpdateQueueTail     gcmHAL2D(gckHARDWARE_UpdateQueueTail)
+#define gckHARDWARE_ConvertLogical      gcmHAL2D(gckHARDWARE_ConvertLogical)
+#define gckHARDWARE_Interrupt           gcmHAL2D(gckHARDWARE_Interrupt)
+#define gckHARDWARE_SetMMU              gcmHAL2D(gckHARDWARE_SetMMU)
+#define gckHARDWARE_FlushMMU            gcmHAL2D(gckHARDWARE_FlushMMU)
+#define gckHARDWARE_GetIdle             gcmHAL2D(gckHARDWARE_GetIdle)
+#define gckHARDWARE_Flush               gcmHAL2D(gckHARDWARE_Flush)
+#define gckHARDWARE_SetFastClear        gcmHAL2D(gckHARDWARE_SetFastClear)
+#define gckHARDWARE_ReadInterrupt       gcmHAL2D(gckHARDWARE_ReadInterrupt)
+#define gckHARDWARE_SetPowerManagementState         gcmHAL2D(gckHARDWARE_SetPowerManagementState)
+#define gckHARDWARE_QueryPowerManagementState       gcmHAL2D(gckHARDWARE_QueryPowerManagementState)
+#define gckHARDWARE_ProfileEngine2D     gcmHAL2D(gckHARDWARE_ProfileEngine2D)
+#define gckHARDWARE_InitializeHardware  gcmHAL2D(gckHARDWARE_InitializeHardware)
+#define gckHARDWARE_Reset               gcmHAL2D(gckHARDWARE_Reset)
+#define gckINTERRUPT_Construct          gcmHAL2D(gckINTERRUPT_Construct)
+#define gckINTERRUPT_Destroy            gcmHAL2D(gckINTERRUPT_Destroy)
+#define gckINTERRUPT_SetHandler         gcmHAL2D(gckINTERRUPT_SetHandler)
+#define gckINTERRUPT_Notify             gcmHAL2D(gckINTERRUPT_Notify)
+#define gckEVENT_Construct              gcmHAL2D(gckEVENT_Construct)
+#define gckEVENT_Destroy                gcmHAL2D(gckEVENT_Destroy)
+#define gckEVENT_AddList                gcmHAL2D(gckEVENT_AddList)
+#define gckEVENT_FreeNonPagedMemory     gcmHAL2D(gckEVENT_FreeNonPagedMemory)
+#define gckEVENT_FreeContiguousMemory   gcmHAL2D(gckEVENT_FreeContiguousMemory)
+#define gckEVENT_FreeVideoMemory        gcmHAL2D(gckEVENT_FreeVideoMemory)
+#define gckEVENT_Signal                 gcmHAL2D(gckEVENT_Signal)
+#define gckEVENT_Unlock                 gcmHAL2D(gckEVENT_Unlock)
+#define gckEVENT_Submit                 gcmHAL2D(gckEVENT_Submit)
+#define gckEVENT_Commit                 gcmHAL2D(gckEVENT_Commit)
+#define gckEVENT_Notify                 gcmHAL2D(gckEVENT_Notify)
+#define gckEVENT_Interrupt              gcmHAL2D(gckEVENT_Interrupt)
+#define gckCOMMAND_Construct            gcmHAL2D(gckCOMMAND_Construct)
+#define gckCOMMAND_Destroy              gcmHAL2D(gckCOMMAND_Destroy)
+#define gckCOMMAND_EnterCommit          gcmHAL2D(gckCOMMAND_EnterCommit)
+#define gckCOMMAND_ExitCommit           gcmHAL2D(gckCOMMAND_ExitCommit)
+#define gckCOMMAND_Start                gcmHAL2D(gckCOMMAND_Start)
+#define gckCOMMAND_Stop                 gcmHAL2D(gckCOMMAND_Stop)
+#define gckCOMMAND_Commit               gcmHAL2D(gckCOMMAND_Commit)
+#define gckCOMMAND_Reserve              gcmHAL2D(gckCOMMAND_Reserve)
+#define gckCOMMAND_Execute              gcmHAL2D(gckCOMMAND_Execute)
+#define gckCOMMAND_Stall                gcmHAL2D(gckCOMMAND_Stall)
+#define gckCOMMAND_Attach               gcmHAL2D(gckCOMMAND_Attach)
+#define gckCOMMAND_Detach               gcmHAL2D(gckCOMMAND_Detach)
+#define gckMMU_Construct                gcmHAL2D(gckMMU_Construct)
+#define gckMMU_Destroy                  gcmHAL2D(gckMMU_Destroy)
+#define gckMMU_AllocatePages            gcmHAL2D(gckMMU_AllocatePages)
+#define gckMMU_FreePages                gcmHAL2D(gckMMU_FreePages)
+#define gckMMU_Test                     gcmHAL2D(gckMMU_Test)
+#define gckHARDWARE_QueryProfileRegisters     gcmHAL2D(gckHARDWARE_QueryProfileRegisters)
+
+
+#define FindMdlMap                      gcmHAL2D(FindMdlMap)
+#define OnProcessExit                   gcmHAL2D(OnProcessExit)
+
+#define gckGALDEVICE_Destroy            gcmHAL2D(gckGALDEVICE_Destroy)
+#define gckOS_Print                     gcmHAL2D(gckOS_Print)
+#define gckGALDEVICE_FreeMemory         gcmHAL2D(gckGALDEVICE_FreeMemory)
+#define gckGALDEVICE_AllocateMemory     gcmHAL2D(gckGALDEVICE_AllocateMemory)
+#define gckOS_DebugBreak                gcmHAL2D(gckOS_DebugBreak)
+#define gckGALDEVICE_Release_ISR        gcmHAL2D(gckGALDEVICE_Release_ISR)
+#define gckOS_Verify                    gcmHAL2D(gckOS_Verify)
+#define gckCOMMAND_Release              gcmHAL2D(gckCOMMAND_Release)
+#define gckGALDEVICE_Stop               gcmHAL2D(gckGALDEVICE_Stop)
+#define gckGALDEVICE_Construct          gcmHAL2D(gckGALDEVICE_Construct)
+#define gckOS_DebugFatal                gcmHAL2D(gckOS_DebugFatal)
+#define gckOS_DebugTrace                gcmHAL2D(gckOS_DebugTrace)
+#define gckHARDWARE_GetBaseAddress      gcmHAL2D(gckHARDWARE_GetBaseAddress)
+#define gckGALDEVICE_Setup_ISR          gcmHAL2D(gckGALDEVICE_Setup_ISR)
+#define gckKERNEL_AttachProcess         gcmHAL2D(gckKERNEL_AttachProcess)
+#define gckKERNEL_AttachProcessEx       gcmHAL2D(gckKERNEL_AttachProcessEx)
+#define gckGALDEVICE_Start_Thread       gcmHAL2D(gckGALDEVICE_Start_Thread)
+#define gckHARDWARE_QueryIdle           gcmHAL2D(gckHARDWARE_QueryIdle)
+#define gckGALDEVICE_Start              gcmHAL2D(gckGALDEVICE_Start)
+#define gckOS_GetKernelLogical          gcmHAL2D(gckOS_GetKernelLogical)
+#define gckOS_DebugTraceZone            gcmHAL2D(gckOS_DebugTraceZone)
+#define gckGALDEVICE_Stop_Thread        gcmHAL2D(gckGALDEVICE_Stop_Thread)
+#define gckHARDWARE_NeedBaseAddress     gcmHAL2D(gckHARDWARE_NeedBaseAddress)
+
+#endif
+
+#endif /* __gc_hal_rename_h_ */
diff --git a/src/hal/kernel/inc/gc_hal_security_interface.h b/src/hal/kernel/inc/gc_hal_security_interface.h
new file mode 100755
index 0000000..27f91f0
--- /dev/null
+++ b/src/hal/kernel/inc/gc_hal_security_interface.h
@@ -0,0 +1,171 @@
+/****************************************************************************
+*
+*    The MIT License (MIT)
+*
+*    Copyright (c) 2014 Vivante Corporation
+*
+*    Permission is hereby granted, free of charge, to any person obtaining a
+*    copy of this software and associated documentation files (the "Software"),
+*    to deal in the Software without restriction, including without limitation
+*    the rights to use, copy, modify, merge, publish, distribute, sublicense,
+*    and/or sell copies of the Software, and to permit persons to whom the
+*    Software is furnished to do so, subject to the following conditions:
+*
+*    The above copyright notice and this permission notice shall be included in
+*    all copies or substantial portions of the Software.
+*
+*    THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+*    IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+*    FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+*    AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+*    LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+*    FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+*    DEALINGS IN THE SOFTWARE.
+*
+*****************************************************************************
+*
+*    The GPL License (GPL)
+*
+*    Copyright (C) 2014  Vivante Corporation
+*
+*    This program is free software; you can redistribute it and/or
+*    modify it under the terms of the GNU General Public License
+*    as published by the Free Software Foundation; either version 2
+*    of the License, or (at your option) any later version.
+*
+*    This program is distributed in the hope that it will be useful,
+*    but WITHOUT ANY WARRANTY; without even the implied warranty of
+*    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+*    GNU General Public License for more details.
+*
+*    You should have received a copy of the GNU General Public License
+*    along with this program; if not, write to the Free Software Foundation,
+*    Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+*
+*****************************************************************************
+*
+*    Note: This software is released under dual MIT and GPL licenses. A
+*    recipient may use this file under the terms of either the MIT license or
+*    GPL License. If you wish to use only one license not the other, you can
+*    indicate your decision by deleting one of the above license notices in your
+*    version of this file.
+*
+*****************************************************************************/
+
+
+#ifndef _GC_HAL_SECURITY_INTERFACE_H_
+#define _GC_HAL_SECURITY_INTERFACE_H_
+/*!
+ @brief Command codes between kernel module and TrustZone
+ @discussion
+ Critical services must be done in TrustZone to avoid sensitive content leak. Most of kernel module is kept in non-Secure os to minimize
+ code in TrustZone.
+ */
+typedef enum kernel_packet_command {
+    KERNEL_START_COMMAND,
+    KERNEL_SUBMIT,
+    KERNEL_MAP_MEMORY,                    /* */
+    KERNEL_UNMAP_MEMORY,
+    KERNEL_ALLOCATE_SECRUE_MEMORY,        /*! Security memory management. */
+    KERNEL_FREE_SECURE_MEMORY,
+    KERNEL_EXECUTE,                       /* Execute a command buffer. */
+} kernel_packet_command_t;
+
+/*!
+ @brief gckCOMMAND Object requests TrustZone to start FE.
+ @discussion
+ DMA enabled register can only be written in TrustZone to avoid GPU from jumping to a hacked code.
+ Kernel module need use these command to ask TrustZone start command parser.
+ */
+struct kernel_start_command {
+    kernel_packet_command_t command;      /*! The command (always needs to be the first entry in a structure). */
+    gctUINT8       gpu;                    /*! Which GPU. */
+};
+
+/*!
+ @brief gckCOMMAND Object requests TrustZone to submit command buffer.
+ @discussion
+ Code in trustzone will check content of command buffer after copying command buffer to TrustZone.
+ */
+struct kernel_submit {
+    kernel_packet_command_t command;      /*! The command (always needs to be the first entry in a structure). */
+    gctUINT8       gpu;                    /*! Which GPU. */
+    gctUINT8       kernel_command;         /*! Whether it is a kernel command. */
+    gctUINT32      command_buffer_handle;  /*! Handle to command buffer. */
+    gctUINT32      offset;                  /* Offset in command buffer. */
+    gctUINT32 *    command_buffer;         /*! Content of command buffer need to be submit. */
+    gctUINT32      command_buffer_length;  /*! Length of command buffer. */
+};
+
+
+/*!
+ @brief gckVIDMEM Object requests TrustZone to allocate security memory.
+ @discussion
+ Allocate a buffer from security GPU memory.
+ */
+struct kernel_allocate_security_memory {
+    kernel_packet_command_t command;      /*! The command (always needs to be the first entry in a structure). */
+    gctUINT32      bytes;                  /*! Requested bytes. */
+    gctUINT32      memory_handle;          /*! Handle of allocated memory. */
+};
+
+/*!
+ @brief gckVIDMEM Object requests TrustZone to allocate security memory.
+ @discussion
+ Free a video memory buffer from security GPU memory.
+ */
+struct kernel_free_security_memory {
+    kernel_packet_command_t command;      /*! The command (always needs to be the first entry in a structure). */
+    gctUINT32      memory_handle;          /*! Handle of allocated memory. */
+};
+
+struct kernel_execute {
+    kernel_packet_command_t command;      /*! The command (always needs to be the first entry in a structure). */
+    gctUINT8       gpu;                    /*! Which GPU. */
+    gctUINT8       kernel_command;         /*! Whether it is a kernel command. */
+    gctUINT32 *    command_buffer;         /*! Content of command buffer need to be submit. */
+    gctUINT32      command_buffer_length;  /*! Length of command buffer. */
+};
+
+typedef struct kernel_map_scatter_gather {
+    gctUINT32      bytes;
+    gctUINT32      physical;
+    struct kernel_map_scatter_gather *next;
+}
+kernel_map_scatter_gather_t;
+
+struct kernel_map_memory {
+    kernel_packet_command_t command;
+    kernel_map_scatter_gather_t *scatter;
+    gctUINT32       *physicals;
+    gctUINT32       pageCount;
+    gctUINT32       gpuAddress;
+};
+
+struct kernel_unmap_memory {
+    gctUINT32       gpuAddress;
+    gctUINT32       pageCount;
+};
+
+typedef struct _gcsTA_INTERFACE {
+    kernel_packet_command_t command;
+    union {
+        struct kernel_submit                   Submit;
+        struct kernel_start_command            StartCommand;
+        struct kernel_allocate_security_memory AllocateSecurityMemory;
+        struct kernel_execute                  Execute;
+        struct kernel_map_memory               MapMemory;
+        struct kernel_unmap_memory             UnmapMemory;
+    } u;
+    gceSTATUS result;
+} gcsTA_INTERFACE;
+
+enum {
+    gcvTA_COMMAND_INIT,
+    gcvTA_COMMAND_DISPATCH,
+
+    gcvTA_CALLBACK_ALLOC_SECURE_MEM,
+    gcvTA_CALLBACK_FREE_SECURE_MEM,
+};
+
+#endif
diff --git a/src/hal/kernel/inc/gc_hal_types.h b/src/hal/kernel/inc/gc_hal_types.h
new file mode 100755
index 0000000..f79f9ad
--- /dev/null
+++ b/src/hal/kernel/inc/gc_hal_types.h
@@ -0,0 +1,976 @@
+/****************************************************************************
+*
+*    The MIT License (MIT)
+*
+*    Copyright (c) 2014 Vivante Corporation
+*
+*    Permission is hereby granted, free of charge, to any person obtaining a
+*    copy of this software and associated documentation files (the "Software"),
+*    to deal in the Software without restriction, including without limitation
+*    the rights to use, copy, modify, merge, publish, distribute, sublicense,
+*    and/or sell copies of the Software, and to permit persons to whom the
+*    Software is furnished to do so, subject to the following conditions:
+*
+*    The above copyright notice and this permission notice shall be included in
+*    all copies or substantial portions of the Software.
+*
+*    THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+*    IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+*    FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+*    AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+*    LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+*    FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+*    DEALINGS IN THE SOFTWARE.
+*
+*****************************************************************************
+*
+*    The GPL License (GPL)
+*
+*    Copyright (C) 2014  Vivante Corporation
+*
+*    This program is free software; you can redistribute it and/or
+*    modify it under the terms of the GNU General Public License
+*    as published by the Free Software Foundation; either version 2
+*    of the License, or (at your option) any later version.
+*
+*    This program is distributed in the hope that it will be useful,
+*    but WITHOUT ANY WARRANTY; without even the implied warranty of
+*    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+*    GNU General Public License for more details.
+*
+*    You should have received a copy of the GNU General Public License
+*    along with this program; if not, write to the Free Software Foundation,
+*    Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+*
+*****************************************************************************
+*
+*    Note: This software is released under dual MIT and GPL licenses. A
+*    recipient may use this file under the terms of either the MIT license or
+*    GPL License. If you wish to use only one license not the other, you can
+*    indicate your decision by deleting one of the above license notices in your
+*    version of this file.
+*
+*****************************************************************************/
+
+
+#ifndef __gc_hal_types_h_
+#define __gc_hal_types_h_
+
+#include "gc_hal_version.h"
+#include "gc_hal_options.h"
+
+#if !defined(VIV_KMD)
+#if defined(__KERNEL__)
+#include "linux/version.h"
+#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,24)
+    typedef unsigned long uintptr_t;
+#   endif
+#   include "linux/types.h"
+#elif defined(UNDER_CE)
+#include <crtdefs.h>
+#elif defined(_MSC_VER) && (_MSC_VER <= 1500)
+#include <crtdefs.h>
+#include "vadefs.h"
+#elif defined(__QNXNTO__)
+#define _QNX_SOURCE
+#include <stdint.h>
+#include <stddef.h>
+#else
+#include <stdlib.h>
+#include <stddef.h>
+#include <stdint.h>
+#endif
+#endif
+
+#ifdef _WIN32
+#pragma warning(disable:4127)   /* Conditional expression is constant (do { }
+                                ** while(0)). */
+#pragma warning(disable:4100)   /* Unreferenced formal parameter. */
+#pragma warning(disable:4204)   /* Non-constant aggregate initializer (C99). */
+#pragma warning(disable:4131)   /* Uses old-style declarator (for Bison and
+                                ** Flex generated files). */
+#pragma warning(disable:4206)   /* Translation unit is empty. */
+#pragma warning(disable:4214)   /* Nonstandard extension used :
+                                ** bit field types other than int. */
+#endif
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/******************************************************************************\
+**  Platform macros.
+*/
+
+#if defined(__GNUC__)
+#   define gcdHAS_ELLIPSIS      1       /* GCC always has it. */
+#elif defined(__STDC_VERSION__) && (__STDC_VERSION__ >= 199901L)
+#   define gcdHAS_ELLIPSIS      1       /* C99 has it. */
+#elif defined(_MSC_VER) && (_MSC_VER >= 1500)
+#   define gcdHAS_ELLIPSIS      1       /* MSVC 2007+ has it. */
+#elif defined(UNDER_CE)
+#if UNDER_CE >= 600
+#       define gcdHAS_ELLIPSIS  1
+#   else
+#       define gcdHAS_ELLIPSIS  0
+#   endif
+#else
+#   error "gcdHAS_ELLIPSIS: Platform could not be determined"
+#endif
+
+/******************************************************************************\
+************************************ Keyword ***********************************
+\******************************************************************************/
+#if defined(ANDROID) && defined(__BIONIC_FORTIFY)
+#   define gcmINLINE            __inline__ __attribute__ ((always_inline)) __attribute__ ((gnu_inline)) __attribute__ ((artificial))
+#elif ((defined(__STDC_VERSION__) && (__STDC_VERSION__ >= 199901L)) || defined(__APPLE__))
+#   define gcmINLINE            inline      /* C99 keyword. */
+#elif defined(__GNUC__)
+#   define gcmINLINE            __inline__  /* GNU keyword. */
+#elif defined(_MSC_VER) || defined(UNDER_CE)
+#   define gcmINLINE            __inline    /* Internal keyword. */
+#else
+#   error "gcmINLINE: Platform could not be determined"
+#endif
+
+/* Possible debug flags. */
+#define gcdDEBUG_NONE           0
+#define gcdDEBUG_ALL            (1 << 0)
+#define gcdDEBUG_FATAL          (1 << 1)
+#define gcdDEBUG_TRACE          (1 << 2)
+#define gcdDEBUG_BREAK          (1 << 3)
+#define gcdDEBUG_ASSERT         (1 << 4)
+#define gcdDEBUG_CODE           (1 << 5)
+#define gcdDEBUG_STACK          (1 << 6)
+
+#define gcmIS_DEBUG(flag)       ( gcdDEBUG & (flag | gcdDEBUG_ALL) )
+
+#ifndef gcdDEBUG
+#if (defined(DBG) && DBG) || defined(DEBUG) || defined(_DEBUG)
+#       define gcdDEBUG         gcdDEBUG_ALL
+#   else
+#       define gcdDEBUG         gcdDEBUG_NONE
+#   endif
+#endif
+
+#ifdef _USRDLL
+#ifdef _MSC_VER
+#ifdef HAL_EXPORTS
+#           define HALAPI       __declspec(dllexport)
+#       else
+#           define HALAPI       __declspec(dllimport)
+#       endif
+#       define HALDECL          __cdecl
+#   else
+#ifdef HAL_EXPORTS
+#           define HALAPI
+#       else
+#           define HALAPI       extern
+#       endif
+#   endif
+#else
+#   define HALAPI
+#   define HALDECL
+#endif
+
+/******************************************************************************\
+********************************** Common Types ********************************
+\******************************************************************************/
+
+#define gcvFALSE                0
+#define gcvTRUE                 1
+
+#define gcvINFINITE             ((gctUINT32) ~0U)
+
+#define gcvINVALID_HANDLE       ((gctHANDLE) ~0U)
+
+typedef int                     gctBOOL;
+typedef gctBOOL *               gctBOOL_PTR;
+
+typedef int                     gctINT;
+typedef signed char             gctINT8;
+typedef signed short            gctINT16;
+typedef signed int              gctINT32;
+typedef signed long long        gctINT64;
+
+typedef gctINT *                gctINT_PTR;
+typedef gctINT8 *               gctINT8_PTR;
+typedef gctINT16 *              gctINT16_PTR;
+typedef gctINT32 *              gctINT32_PTR;
+typedef gctINT64 *              gctINT64_PTR;
+
+typedef unsigned int            gctUINT;
+typedef unsigned char           gctUINT8;
+typedef unsigned short          gctUINT16;
+typedef unsigned int            gctUINT32;
+typedef unsigned long long      gctUINT64;
+typedef uintptr_t               gctUINTPTR_T;
+
+typedef gctUINT *               gctUINT_PTR;
+typedef gctUINT8 *              gctUINT8_PTR;
+typedef gctUINT16 *             gctUINT16_PTR;
+typedef gctUINT32 *             gctUINT32_PTR;
+typedef gctUINT64 *             gctUINT64_PTR;
+
+typedef size_t                  gctSIZE_T;
+typedef gctSIZE_T *             gctSIZE_T_PTR;
+typedef gctUINT32               gctTRACE;
+
+#ifdef __cplusplus
+#   define gcvNULL              0
+#else
+#   define gcvNULL              ((void *) 0)
+#endif
+
+#define gcvMAXINT8              0x7f
+#define gcvMININT8              0x80
+#define gcvMAXINT16             0x7fff
+#define gcvMININT16             0x8000
+#define gcvMAXINT32             0x7fffffff
+#define gcvMININT32             0x80000000
+#define gcvMAXINT64             0x7fffffffffffffff
+#define gcvMININT64             0x8000000000000000
+#define gcvMAXUINT8             0xff
+#define gcvMINUINT8             0x0
+#define gcvMAXUINT16            0xffff
+#define gcvMINUINT16            0x8000
+#define gcvMAXUINT32            0xffffffff
+#define gcvMINUINT32            0x80000000
+#define gcvMAXUINT64            0xffffffffffffffff
+#define gcvMINUINT64            0x8000000000000000
+#define gcvMAXUINTPTR_T         (~(gctUINTPTR_T)0)
+
+typedef float                   gctFLOAT;
+typedef signed int              gctFIXED_POINT;
+typedef float *                 gctFLOAT_PTR;
+
+typedef void *                  gctPHYS_ADDR;
+typedef void *                  gctHANDLE;
+typedef void *                  gctFILE;
+typedef void *                  gctSIGNAL;
+typedef void *                  gctWINDOW;
+typedef void *                  gctIMAGE;
+typedef void *                  gctSYNC_POINT;
+typedef void *                  gctSHBUF;
+
+typedef void *                  gctSEMAPHORE;
+
+typedef void *                  gctPOINTER;
+typedef const void *            gctCONST_POINTER;
+
+typedef char                    gctCHAR;
+typedef char *                  gctSTRING;
+typedef const char *            gctCONST_STRING;
+
+typedef gctUINT64               gctPHYS_ADDR_T;
+
+typedef struct _gcsCOUNT_STRING
+{
+    gctSIZE_T                   Length;
+    gctCONST_STRING             String;
+}
+gcsCOUNT_STRING;
+
+typedef union _gcuFLOAT_UINT32
+{
+    gctFLOAT    f;
+    gctUINT32   u;
+}
+gcuFLOAT_UINT32;
+
+/* Fixed point constants. */
+#define gcvZERO_X               ((gctFIXED_POINT) 0x00000000)
+#define gcvHALF_X               ((gctFIXED_POINT) 0x00008000)
+#define gcvONE_X                ((gctFIXED_POINT) 0x00010000)
+#define gcvNEGONE_X             ((gctFIXED_POINT) 0xFFFF0000)
+#define gcvTWO_X                ((gctFIXED_POINT) 0x00020000)
+
+
+
+#define gcmFIXEDCLAMP_NEG1_TO_1(_x) \
+    (((_x) < gcvNEGONE_X) \
+        ? gcvNEGONE_X \
+        : (((_x) > gcvONE_X) \
+            ? gcvONE_X \
+            : (_x)))
+
+#define gcmFLOATCLAMP_NEG1_TO_1(_f) \
+    (((_f) < -1.0f) \
+        ? -1.0f \
+        : (((_f) > 1.0f) \
+            ? 1.0f \
+            : (_f)))
+
+
+#define gcmFIXEDCLAMP_0_TO_1(_x) \
+    (((_x) < 0) \
+        ? 0 \
+        : (((_x) > gcvONE_X) \
+            ? gcvONE_X \
+            : (_x)))
+
+#define gcmFLOATCLAMP_0_TO_1(_f) \
+    (((_f) < 0.0f) \
+        ? 0.0f \
+        : (((_f) > 1.0f) \
+            ? 1.0f \
+            : (_f)))
+
+
+/******************************************************************************\
+******************************* Multicast Values *******************************
+\******************************************************************************/
+
+/* Value types. */
+typedef enum _gceVALUE_TYPE
+{
+    gcvVALUE_UINT = 0x0,
+    gcvVALUE_FIXED,
+    gcvVALUE_FLOAT,
+    gcvVALUE_INT,
+
+    /*
+    ** The value need be unsigned denormalized. clamp (0.0-1.0) should be done first.
+    */
+    gcvVALUE_FLAG_UNSIGNED_DENORM = 0x00010000,
+
+    /*
+    ** The value need be signed denormalized. clamp (-1.0-1.0) should be done first.
+    */
+    gcvVALUE_FLAG_SIGNED_DENORM   = 0x00020000,
+
+    /*
+    ** The value need to gammar
+    */
+    gcvVALUE_FLAG_GAMMAR          = 0x00040000,
+
+    /*
+    ** The value need to convert from float to float16
+    */
+    gcvVALUE_FLAG_FLOAT_TO_FLOAT16 = 0x0080000,
+
+    /*
+    ** Mask for flag field.
+    */
+    gcvVALUE_FLAG_MASK            = 0xFFFF0000,
+}
+gceVALUE_TYPE;
+
+/* Value unions. */
+typedef union _gcuVALUE
+{
+    gctUINT                     uintValue;
+    gctFIXED_POINT              fixedValue;
+    gctFLOAT                    floatValue;
+    gctINT                      intValue;
+}
+gcuVALUE;
+
+
+
+
+/* Stringizing macro. */
+#define gcmSTRING(Value)        #Value
+
+/******************************************************************************\
+******************************* Fixed Point Math *******************************
+\******************************************************************************/
+
+#define gcmXMultiply(x1, x2)            gcoMATH_MultiplyFixed(x1, x2)
+#define gcmXDivide(x1, x2)              gcoMATH_DivideFixed(x1, x2)
+#define gcmXMultiplyDivide(x1, x2, x3)  gcoMATH_MultiplyDivideFixed(x1, x2, x3)
+
+/* 2D Engine profile. */
+typedef struct _gcs2D_PROFILE
+{
+    /* Cycle count.
+       32bit counter incremented every 2D clock cycle.
+       Wraps back to 0 when the counter overflows.
+    */
+    gctUINT32 cycleCount;
+
+    /* Pixels rendered by the 2D engine.
+       Resets to 0 every time it is read. */
+    gctUINT32 pixelsRendered;
+}
+gcs2D_PROFILE;
+
+/* Macro to combine four characters into a Charcater Code. */
+#define gcmCC(c1, c2, c3, c4) \
+( \
+    (char) (c1) \
+    | \
+    ((char) (c2) <<  8) \
+    | \
+    ((char) (c3) << 16) \
+    | \
+    ((char) (c4) << 24) \
+)
+
+#define gcmPRINTABLE(c)         ((((c) >= ' ') && ((c) <= '}')) ? ((c) != '%' ?  (c) : ' ') : ' ')
+
+#define gcmCC_PRINT(cc) \
+    gcmPRINTABLE((char) ( (cc)        & 0xFF)), \
+    gcmPRINTABLE((char) (((cc) >>  8) & 0xFF)), \
+    gcmPRINTABLE((char) (((cc) >> 16) & 0xFF)), \
+    gcmPRINTABLE((char) (((cc) >> 24) & 0xFF))
+
+/******************************************************************************\
+****************************** Function Parameters *****************************
+\******************************************************************************/
+
+#define IN
+#define OUT
+#define INOUT
+#define OPTIONAL
+
+/******************************************************************************\
+********************************* Status Codes *********************************
+\******************************************************************************/
+
+typedef enum _gceSTATUS
+{
+    gcvSTATUS_OK                    =   0,
+    gcvSTATUS_FALSE                 =   0,
+    gcvSTATUS_TRUE                  =   1,
+    gcvSTATUS_NO_MORE_DATA          =   2,
+    gcvSTATUS_CACHED                =   3,
+    gcvSTATUS_MIPMAP_TOO_LARGE      =   4,
+    gcvSTATUS_NAME_NOT_FOUND        =   5,
+    gcvSTATUS_NOT_OUR_INTERRUPT     =   6,
+    gcvSTATUS_MISMATCH              =   7,
+    gcvSTATUS_MIPMAP_TOO_SMALL      =   8,
+    gcvSTATUS_LARGER                =   9,
+    gcvSTATUS_SMALLER               =   10,
+    gcvSTATUS_CHIP_NOT_READY        =   11,
+    gcvSTATUS_NEED_CONVERSION       =   12,
+    gcvSTATUS_SKIP                  =   13,
+    gcvSTATUS_DATA_TOO_LARGE        =   14,
+    gcvSTATUS_INVALID_CONFIG        =   15,
+    gcvSTATUS_CHANGED               =   16,
+    gcvSTATUS_NOT_SUPPORT_DITHER    =   17,
+    gcvSTATUS_EXECUTED              =   18,
+    gcvSTATUS_TERMINATE             =   19,
+
+    gcvSTATUS_INVALID_ARGUMENT      =   -1,
+    gcvSTATUS_INVALID_OBJECT        =   -2,
+    gcvSTATUS_OUT_OF_MEMORY         =   -3,
+    gcvSTATUS_MEMORY_LOCKED         =   -4,
+    gcvSTATUS_MEMORY_UNLOCKED       =   -5,
+    gcvSTATUS_HEAP_CORRUPTED        =   -6,
+    gcvSTATUS_GENERIC_IO            =   -7,
+    gcvSTATUS_INVALID_ADDRESS       =   -8,
+    gcvSTATUS_CONTEXT_LOSSED        =   -9,
+    gcvSTATUS_TOO_COMPLEX           =   -10,
+    gcvSTATUS_BUFFER_TOO_SMALL      =   -11,
+    gcvSTATUS_INTERFACE_ERROR       =   -12,
+    gcvSTATUS_NOT_SUPPORTED         =   -13,
+    gcvSTATUS_MORE_DATA             =   -14,
+    gcvSTATUS_TIMEOUT               =   -15,
+    gcvSTATUS_OUT_OF_RESOURCES      =   -16,
+    gcvSTATUS_INVALID_DATA          =   -17,
+    gcvSTATUS_INVALID_MIPMAP        =   -18,
+    gcvSTATUS_NOT_FOUND             =   -19,
+    gcvSTATUS_NOT_ALIGNED           =   -20,
+    gcvSTATUS_INVALID_REQUEST       =   -21,
+    gcvSTATUS_GPU_NOT_RESPONDING    =   -22,
+    gcvSTATUS_TIMER_OVERFLOW        =   -23,
+    gcvSTATUS_VERSION_MISMATCH      =   -24,
+    gcvSTATUS_LOCKED                =   -25,
+    gcvSTATUS_INTERRUPTED           =   -26,
+    gcvSTATUS_DEVICE                =   -27,
+    gcvSTATUS_NOT_MULTI_PIPE_ALIGNED =   -28,
+
+    /* Linker errors. */
+    gcvSTATUS_GLOBAL_TYPE_MISMATCH              =   -1000,
+    gcvSTATUS_TOO_MANY_ATTRIBUTES               =   -1001,
+    gcvSTATUS_TOO_MANY_UNIFORMS                 =   -1002,
+    gcvSTATUS_TOO_MANY_VARYINGS                 =   -1003,
+    gcvSTATUS_UNDECLARED_VARYING                =   -1004,
+    gcvSTATUS_VARYING_TYPE_MISMATCH             =   -1005,
+    gcvSTATUS_MISSING_MAIN                      =   -1006,
+    gcvSTATUS_NAME_MISMATCH                     =   -1007,
+    gcvSTATUS_INVALID_INDEX                     =   -1008,
+    gcvSTATUS_UNIFORM_MISMATCH                  =   -1009,
+    gcvSTATUS_UNSAT_LIB_SYMBOL                  =   -1010,
+    gcvSTATUS_TOO_MANY_SHADERS                  =   -1011,
+    gcvSTATUS_LINK_INVALID_SHADERS              =   -1012,
+    gcvSTATUS_CS_NO_WORKGROUP_SIZE              =   -1013,
+    gcvSTATUS_LINK_LIB_ERROR                    =   -1014,
+    gcvSTATUS_SHADER_VERSION_MISMATCH           =   -1015,
+    gcvSTATUS_TOO_MANY_INSTRUCTION              =   -1016,
+    gcvSTATUS_SSBO_MISMATCH                     =   -1017,
+    gcvSTATUS_TOO_MANY_OUTPUT                   =   -1018,
+    gcvSTATUS_TOO_MANY_INPUT                    =   -1019,
+    gcvSTATUS_NOT_SUPPORT_CL                    =   -1020,
+    gcvSTATUS_NOT_SUPPORT_INTEGER               =   -1021,
+    gcvSTATUS_UNIFORM_TYPE_MISMATCH             =   -1022,
+    gcvSTATUS_TOO_MANY_SAMPLER                  =   -1023,
+
+    /* Compiler errors. */
+    gcvSTATUS_COMPILER_FE_PREPROCESSOR_ERROR    =   -2000,
+    gcvSTATUS_COMPILER_FE_PARSER_ERROR          =   -2001,
+
+    /* Recompilation Errors */
+    gcvSTATUS_RECOMPILER_CONVERT_UNIMPLEMENTED  =   -3000,
+}
+gceSTATUS;
+
+/******************************************************************************\
+********************************* Status Macros ********************************
+\******************************************************************************/
+
+#define gcmIS_ERROR(status)         (status < 0)
+#define gcmNO_ERROR(status)         (status >= 0)
+#define gcmIS_SUCCESS(status)       (status == gcvSTATUS_OK)
+
+/******************************************************************************\
+********************************* Field Macros *********************************
+\******************************************************************************/
+
+#define __gcmSTART(reg_field) \
+    (0 ? reg_field)
+
+#define __gcmEND(reg_field) \
+    (1 ? reg_field)
+
+#define __gcmGETSIZE(reg_field) \
+    (__gcmEND(reg_field) - __gcmSTART(reg_field) + 1)
+
+#define __gcmALIGN(data, reg_field) \
+    (((gctUINT32) (data)) << __gcmSTART(reg_field))
+
+#define __gcmMASK(reg_field) \
+    ((gctUINT32) ((__gcmGETSIZE(reg_field) == 32) \
+        ?  ~0 \
+        : (~(~0 << __gcmGETSIZE(reg_field)))))
+
+/*******************************************************************************
+**
+**  gcmFIELDMASK
+**
+**      Get aligned field mask.
+**
+**  ARGUMENTS:
+**
+**      reg     Name of register.
+**      field   Name of field within register.
+*/
+#define gcmFIELDMASK(reg, field) \
+( \
+    __gcmALIGN(__gcmMASK(reg##_##field), reg##_##field) \
+)
+
+/*******************************************************************************
+**
+**  gcmGETFIELD
+**
+**      Extract the value of a field from specified data.
+**
+**  ARGUMENTS:
+**
+**      data    Data value.
+**      reg     Name of register.
+**      field   Name of field within register.
+*/
+#define gcmGETFIELD(data, reg, field) \
+( \
+    ((((gctUINT32) (data)) >> __gcmSTART(reg##_##field)) \
+        & __gcmMASK(reg##_##field)) \
+)
+
+/*******************************************************************************
+**
+**  gcmSETFIELD
+**
+**      Set the value of a field within specified data.
+**
+**  ARGUMENTS:
+**
+**      data    Data value.
+**      reg     Name of register.
+**      field   Name of field within register.
+**      value   Value for field.
+*/
+#define gcmSETFIELD(data, reg, field, value) \
+( \
+    (((gctUINT32) (data)) \
+        & ~__gcmALIGN(__gcmMASK(reg##_##field), reg##_##field)) \
+        |  __gcmALIGN((gctUINT32) (value) \
+            & __gcmMASK(reg##_##field), reg##_##field) \
+)
+
+/*******************************************************************************
+**
+**  gcmSETFIELDVALUE
+**
+**      Set the value of a field within specified data with a
+**      predefined value.
+**
+**  ARGUMENTS:
+**
+**      data    Data value.
+**      reg     Name of register.
+**      field   Name of field within register.
+**      value   Name of the value within the field.
+*/
+#define gcmSETFIELDVALUE(data, reg, field, value) \
+( \
+    (((gctUINT32) (data)) \
+        & ~__gcmALIGN(__gcmMASK(reg##_##field), reg##_##field)) \
+        |  __gcmALIGN(reg##_##field##_##value \
+            & __gcmMASK(reg##_##field), reg##_##field) \
+)
+
+/*******************************************************************************
+**
+**  gcmGETMASKEDFIELDMASK
+**
+**      Determine field mask of a masked field.
+**
+**  ARGUMENTS:
+**
+**      reg     Name of register.
+**      field   Name of field within register.
+*/
+#define gcmGETMASKEDFIELDMASK(reg, field) \
+( \
+    gcmSETFIELD(0, reg,          field, ~0) | \
+    gcmSETFIELD(0, reg, MASK_ ## field, ~0)   \
+)
+
+/*******************************************************************************
+**
+**  gcmSETMASKEDFIELD
+**
+**      Set the value of a masked field with specified data.
+**
+**  ARGUMENTS:
+**
+**      reg     Name of register.
+**      field   Name of field within register.
+**      value   Value for field.
+*/
+#define gcmSETMASKEDFIELD(reg, field, value) \
+( \
+    gcmSETFIELD     (~0, reg,          field, value) & \
+    gcmSETFIELDVALUE(~0, reg, MASK_ ## field, ENABLED) \
+)
+
+/*******************************************************************************
+**
+**  gcmSETMASKEDFIELDVALUE
+**
+**      Set the value of a masked field with specified data.
+**
+**  ARGUMENTS:
+**
+**      reg     Name of register.
+**      field   Name of field within register.
+**      value   Value for field.
+*/
+#define gcmSETMASKEDFIELDVALUE(reg, field, value) \
+( \
+    gcmSETFIELDVALUE(~0, reg,          field, value) & \
+    gcmSETFIELDVALUE(~0, reg, MASK_ ## field, ENABLED) \
+)
+
+/*******************************************************************************
+**
+**  gcmVERIFYFIELDVALUE
+**
+**      Verify if the value of a field within specified data equals a
+**      predefined value.
+**
+**  ARGUMENTS:
+**
+**      data    Data value.
+**      reg     Name of register.
+**      field   Name of field within register.
+**      value   Name of the value within the field.
+*/
+#define gcmVERIFYFIELDVALUE(data, reg, field, value) \
+( \
+    (((gctUINT32) (data)) >> __gcmSTART(reg##_##field) & \
+                             __gcmMASK(reg##_##field)) \
+        == \
+    (reg##_##field##_##value & __gcmMASK(reg##_##field)) \
+)
+
+/*******************************************************************************
+**  Bit field macros.
+*/
+
+#define __gcmSTARTBIT(Field) \
+    ( 1 ? Field )
+
+#define __gcmBITSIZE(Field) \
+    ( 0 ? Field )
+
+#define __gcmBITMASK(Field) \
+( \
+    (1 << __gcmBITSIZE(Field)) - 1 \
+)
+
+#define gcmGETBITS(Value, Type, Field) \
+( \
+    ( ((Type) (Value)) >> __gcmSTARTBIT(Field) ) \
+    & \
+    __gcmBITMASK(Field) \
+)
+
+#define gcmSETBITS(Value, Type, Field, NewValue) \
+( \
+    ( ((Type) (Value)) \
+    & ~(__gcmBITMASK(Field) << __gcmSTARTBIT(Field)) \
+    ) \
+    | \
+    ( ( ((Type) (NewValue)) \
+      & __gcmBITMASK(Field) \
+      ) << __gcmSTARTBIT(Field) \
+    ) \
+)
+
+/*******************************************************************************
+**
+**  gcmISINREGRANGE
+**
+**      Verify whether the specified address is in the register range.
+**
+**  ARGUMENTS:
+**
+**      Address Address to be verified.
+**      Name    Name of a register.
+*/
+
+#define gcmISINREGRANGE(Address, Name) \
+( \
+    ((Address & (~0U << Name ## _LSB)) == (Name ## _Address >> 2)) \
+)
+
+/******************************************************************************\
+******************************** Ceiling Macro ********************************
+\******************************************************************************/
+#define gcmCEIL(x) ((x - (gctUINT32)x) == 0 ? (gctUINT32)x : (gctUINT32)x + 1)
+
+/******************************************************************************\
+******************************** Min/Max Macros ********************************
+\******************************************************************************/
+
+#define gcmMIN(x, y)            (((x) <= (y)) ?  (x) :  (y))
+#define gcmMAX(x, y)            (((x) >= (y)) ?  (x) :  (y))
+#define gcmCLAMP(x, min, max)   (((x) < (min)) ? (min) : \
+                                 ((x) > (max)) ? (max) : (x))
+#define gcmABS(x)               (((x) < 0)    ? -(x) :  (x))
+#define gcmNEG(x)               (((x) < 0)    ?  (x) : -(x))
+
+/******************************************************************************\
+******************************** Bit Macro ********************************
+\******************************************************************************/
+#define gcmBITSET(x, y)         ((x) & (y))
+/*******************************************************************************
+**
+**  gcmPTR2INT
+**
+**      Convert a pointer to an integer value.
+**
+**  ARGUMENTS:
+**
+**      p       Pointer value.
+*/
+#define gcmPTR2INT(p) \
+( \
+    (gctUINTPTR_T) (p) \
+)
+
+#define gcmPTR2INT32(p) \
+( \
+    (gctUINT32)(gctUINTPTR_T) (p) \
+)
+
+/*******************************************************************************
+**
+**  gcmINT2PTR
+**
+**      Convert an integer value into a pointer.
+**
+**  ARGUMENTS:
+**
+**      v       Integer value.
+*/
+
+#define gcmINT2PTR(i) \
+( \
+    (gctPOINTER) (gctUINTPTR_T)(i) \
+)
+
+/*******************************************************************************
+**
+**  gcmOFFSETOF
+**
+**      Compute the byte offset of a field inside a structure.
+**
+**  ARGUMENTS:
+**
+**      s       Structure name.
+**      field   Field name.
+*/
+#define gcmOFFSETOF(s, field) \
+( \
+    gcmPTR2INT32(& (((struct s *) 0)->field)) \
+)
+
+/*******************************************************************************
+**
+** gcmSWAB32
+**
+**      Return a value with all bytes in the 32 bit argument swapped.
+*/
+#define gcmSWAB32(x) ((gctUINT32)( \
+        (((gctUINT32)(x) & (gctUINT32)0x000000FFUL) << 24) | \
+        (((gctUINT32)(x) & (gctUINT32)0x0000FF00UL) << 8)  | \
+        (((gctUINT32)(x) & (gctUINT32)0x00FF0000UL) >> 8)  | \
+        (((gctUINT32)(x) & (gctUINT32)0xFF000000UL) >> 24)))
+
+/*******************************************************************************
+***** Database ****************************************************************/
+
+typedef struct _gcsDATABASE_COUNTERS
+{
+    /* Number of currently allocated bytes. */
+    gctUINT64                   bytes;
+
+    /* Maximum number of bytes allocated (memory footprint). */
+    gctUINT64                   maxBytes;
+
+    /* Total number of bytes allocated. */
+    gctUINT64                   totalBytes;
+
+    /* The numbers of times video memory was allocated. */
+    gctUINT32                   allocCount;
+
+    /* The numbers of times video memory was freed. */
+    gctUINT32                   freeCount;
+}
+gcsDATABASE_COUNTERS;
+
+typedef struct _gcuDATABASE_INFO
+{
+    /* Counters. */
+    gcsDATABASE_COUNTERS        counters;
+
+    /* Time value. */
+    gctUINT64                   time;
+}
+gcuDATABASE_INFO;
+
+/*******************************************************************************
+***** Frame database **********************************************************/
+
+/* gcsHAL_FRAME_INFO */
+typedef struct _gcsHAL_FRAME_INFO
+{
+    /* Current timer tick. */
+    OUT gctUINT64               ticks;
+
+    /* Bandwidth counters. */
+    OUT gctUINT                 readBytes8[8];
+    OUT gctUINT                 writeBytes8[8];
+
+    /* Counters. */
+    OUT gctUINT                 cycles[8];
+    OUT gctUINT                 idleCycles[8];
+    OUT gctUINT                 mcCycles[8];
+    OUT gctUINT                 readRequests[8];
+    OUT gctUINT                 writeRequests[8];
+
+    /* 3D counters. */
+    OUT gctUINT                 vertexCount;
+    OUT gctUINT                 primitiveCount;
+    OUT gctUINT                 rejectedPrimitives;
+    OUT gctUINT                 culledPrimitives;
+    OUT gctUINT                 clippedPrimitives;
+    OUT gctUINT                 outPrimitives;
+    OUT gctUINT                 inPrimitives;
+    OUT gctUINT                 culledQuadCount;
+    OUT gctUINT                 totalQuadCount;
+    OUT gctUINT                 quadCount;
+    OUT gctUINT                 totalPixelCount;
+
+    /* PE counters. */
+    OUT gctUINT                 colorKilled[8];
+    OUT gctUINT                 colorDrawn[8];
+    OUT gctUINT                 depthKilled[8];
+    OUT gctUINT                 depthDrawn[8];
+
+    /* Shader counters. */
+    OUT gctUINT                 shaderCycles;
+    OUT gctUINT                 vsInstructionCount;
+    OUT gctUINT                 vsTextureCount;
+    OUT gctUINT                 psInstructionCount;
+    OUT gctUINT                 psTextureCount;
+
+    /* Texture counters. */
+    OUT gctUINT                 bilinearRequests;
+    OUT gctUINT                 trilinearRequests;
+    OUT gctUINT                 txBytes8;
+    OUT gctUINT                 txHitCount;
+    OUT gctUINT                 txMissCount;
+}
+gcsHAL_FRAME_INFO;
+
+#if gcdLINK_QUEUE_SIZE
+typedef struct _gckLINKDATA * gckLINKDATA;
+struct _gckLINKDATA
+{
+    gctUINT32                   start;
+    gctUINT32                   end;
+    gctUINT32                   pid;
+    gctUINT32                   linkLow;
+    gctUINT32                   linkHigh;
+};
+
+typedef struct _gckLINKQUEUE * gckLINKQUEUE;
+struct _gckLINKQUEUE
+{
+    struct _gckLINKDATA         data[gcdLINK_QUEUE_SIZE];
+    gctUINT32                   rear;
+    gctUINT32                   front;
+    gctUINT32                   count;
+};
+#endif
+
+#define gcdENTRY_QUEUE_SIZE 256
+typedef struct _gckENTRYDATA * gckENTRYDATA;
+struct _gckENTRYDATA
+{
+    gctUINT32                   physical;
+    gctUINT32                   bytes;
+};
+
+typedef struct _gckENTRYQUEUE * gckENTRYQUEUE;
+struct _gckENTRYQUEUE
+{
+    struct _gckENTRYDATA        data[gcdENTRY_QUEUE_SIZE];
+    gctUINT32                   rear;
+    gctUINT32                   front;
+    gctUINT32                   count;
+};
+
+typedef enum _gceTRACEMODE
+{
+    gcvTRACEMODE_NONE     = 0,
+    gcvTRACEMODE_FULL     = 1,
+    gcvTRACEMODE_LOGGER   = 2,
+    gcvTRACEMODE_PRE      = 3,
+    gcvTRACEMODE_POST     = 4,
+    gcvTRACEMODE_SYSTRACE = 5,
+
+} gceTRACEMODE;
+
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* __gc_hal_types_h_ */
diff --git a/src/hal/kernel/inc/gc_hal_version.h b/src/hal/kernel/inc/gc_hal_version.h
new file mode 100755
index 0000000..ed77d1a
--- /dev/null
+++ b/src/hal/kernel/inc/gc_hal_version.h
@@ -0,0 +1,69 @@
+/****************************************************************************
+*
+*    The MIT License (MIT)
+*
+*    Copyright (c) 2014 Vivante Corporation
+*
+*    Permission is hereby granted, free of charge, to any person obtaining a
+*    copy of this software and associated documentation files (the "Software"),
+*    to deal in the Software without restriction, including without limitation
+*    the rights to use, copy, modify, merge, publish, distribute, sublicense,
+*    and/or sell copies of the Software, and to permit persons to whom the
+*    Software is furnished to do so, subject to the following conditions:
+*
+*    The above copyright notice and this permission notice shall be included in
+*    all copies or substantial portions of the Software.
+*
+*    THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+*    IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+*    FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+*    AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+*    LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+*    FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+*    DEALINGS IN THE SOFTWARE.
+*
+*****************************************************************************
+*
+*    The GPL License (GPL)
+*
+*    Copyright (C) 2014  Vivante Corporation
+*
+*    This program is free software; you can redistribute it and/or
+*    modify it under the terms of the GNU General Public License
+*    as published by the Free Software Foundation; either version 2
+*    of the License, or (at your option) any later version.
+*
+*    This program is distributed in the hope that it will be useful,
+*    but WITHOUT ANY WARRANTY; without even the implied warranty of
+*    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+*    GNU General Public License for more details.
+*
+*    You should have received a copy of the GNU General Public License
+*    along with this program; if not, write to the Free Software Foundation,
+*    Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+*
+*****************************************************************************
+*
+*    Note: This software is released under dual MIT and GPL licenses. A
+*    recipient may use this file under the terms of either the MIT license or
+*    GPL License. If you wish to use only one license not the other, you can
+*    indicate your decision by deleting one of the above license notices in your
+*    version of this file.
+*
+*****************************************************************************/
+
+
+#ifndef __gc_hal_version_h_
+#define __gc_hal_version_h_
+
+#define gcvVERSION_MAJOR        5
+
+#define gcvVERSION_MINOR        0
+
+#define gcvVERSION_PATCH        11
+
+#define gcvVERSION_BUILD     33433
+
+#define gcvVERSION_STRING    "5.0.11.p7.33433"
+
+#endif /* __gc_hal_version_h_ */
diff --git a/src/hal/kernel/makefile.linux b/src/hal/kernel/makefile.linux
new file mode 100755
index 0000000..187fe7d
--- /dev/null
+++ b/src/hal/kernel/makefile.linux
@@ -0,0 +1,97 @@
+##############################################################################
+#
+#    The MIT License (MIT)
+#
+#    Copyright (c) 2014 Vivante Corporation
+#
+#    Permission is hereby granted, free of charge, to any person obtaining a
+#    copy of this software and associated documentation files (the "Software"),
+#    to deal in the Software without restriction, including without limitation
+#    the rights to use, copy, modify, merge, publish, distribute, sublicense,
+#    and/or sell copies of the Software, and to permit persons to whom the
+#    Software is furnished to do so, subject to the following conditions:
+#
+#    The above copyright notice and this permission notice shall be included in
+#    all copies or substantial portions of the Software.
+#
+#    THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+#    IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+#    FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+#    AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+#    LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+#    FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+#    DEALINGS IN THE SOFTWARE.
+#
+##############################################################################
+#
+#    The GPL License (GPL)
+#
+#    Copyright (C) 2014  Vivante Corporation
+#
+#    This program is free software; you can redistribute it and/or
+#    modify it under the terms of the GNU General Public License
+#    as published by the Free Software Foundation; either version 2
+#    of the License, or (at your option) any later version.
+#
+#    This program is distributed in the hope that it will be useful,
+#    but WITHOUT ANY WARRANTY; without even the implied warranty of
+#    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+#    GNU General Public License for more details.
+#
+#    You should have received a copy of the GNU General Public License
+#    along with this program; if not, write to the Free Software Foundation,
+#    Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+#
+##############################################################################
+#
+#    Note: This software is released under dual MIT and GPL licenses. A
+#    recipient may use this file under the terms of either the MIT license or
+#    GPL License. If you wish to use only one license not the other, you can
+#    indicate your decision by deleting one of the above license notices in your
+#    version of this file.
+#
+##############################################################################
+
+
+#
+# Linux build file for architecture dependent kernel HAL layer.
+#
+#
+
+
+################################################################################
+# Include common definitions.
+
+include $(AQROOT)/makefile.linux.def
+
+################################################################################
+# Define a shortcut for the main target.
+
+STATIC = 1
+TARGET_NAME = libhalkernel.a
+
+################################################################################
+# Supply additional include directories.
+
+INCLUDE += -I$(AQROOT)/hal/kernel/inc
+INCLUDE += -I$(AQROOT)/hal/kernel/inc
+INCLUDE += -I$(AQROOT)/hal/kernel/arch
+INCLUDE += -I$(AQROOT)/hal/kernel
+INCLUDE += -I$(AQROOT)/hal/os/linux/kernel
+
+CFLAGS += $(INCLUDE) -Werror -ansi
+
+################################################################################
+# Describe object files.
+
+OBJECTS = $(OBJ_DIR)/gc_hal_kernel_command.o \
+          $(OBJ_DIR)/gc_hal_kernel_db.o \
+          $(OBJ_DIR)/gc_hal_kernel_debug.o \
+          $(OBJ_DIR)/gc_hal_kernel_event.o \
+          $(OBJ_DIR)/gc_hal_kernel_heap.o \
+          $(OBJ_DIR)/gc_hal_kernel.o \
+          $(OBJ_DIR)/gc_hal_kernel_mmu.o \
+          $(OBJ_DIR)/gc_hal_kernel_video_memory.o
+
+
+include $(AQROOT)/common.target
diff --git a/src/hal/os/linux/kernel/allocator/default/gc_hal_kernel_allocator_array.h b/src/hal/os/linux/kernel/allocator/default/gc_hal_kernel_allocator_array.h
new file mode 100755
index 0000000..b1df099
--- /dev/null
+++ b/src/hal/os/linux/kernel/allocator/default/gc_hal_kernel_allocator_array.h
@@ -0,0 +1,84 @@
+/****************************************************************************
+*
+*    The MIT License (MIT)
+*
+*    Copyright (c) 2014 Vivante Corporation
+*
+*    Permission is hereby granted, free of charge, to any person obtaining a
+*    copy of this software and associated documentation files (the "Software"),
+*    to deal in the Software without restriction, including without limitation
+*    the rights to use, copy, modify, merge, publish, distribute, sublicense,
+*    and/or sell copies of the Software, and to permit persons to whom the
+*    Software is furnished to do so, subject to the following conditions:
+*
+*    The above copyright notice and this permission notice shall be included in
+*    all copies or substantial portions of the Software.
+*
+*    THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+*    IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+*    FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+*    AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+*    LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+*    FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+*    DEALINGS IN THE SOFTWARE.
+*
+*****************************************************************************
+*
+*    The GPL License (GPL)
+*
+*    Copyright (C) 2014  Vivante Corporation
+*
+*    This program is free software; you can redistribute it and/or
+*    modify it under the terms of the GNU General Public License
+*    as published by the Free Software Foundation; either version 2
+*    of the License, or (at your option) any later version.
+*
+*    This program is distributed in the hope that it will be useful,
+*    but WITHOUT ANY WARRANTY; without even the implied warranty of
+*    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+*    GNU General Public License for more details.
+*
+*    You should have received a copy of the GNU General Public License
+*    along with this program; if not, write to the Free Software Foundation,
+*    Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+*
+*****************************************************************************
+*
+*    Note: This software is released under dual MIT and GPL licenses. A
+*    recipient may use this file under the terms of either the MIT license or
+*    GPL License. If you wish to use only one license not the other, you can
+*    indicate your decision by deleting one of the above license notices in your
+*    version of this file.
+*
+*****************************************************************************/
+
+
+#ifndef __gc_hal_kernel_allocator_array_h_
+#define __gc_hal_kernel_allocator_array_h_
+
+extern gceSTATUS
+_DefaultAlloctorInit(
+    IN gckOS Os,
+    OUT gckALLOCATOR * Allocator
+    );
+
+#ifdef CONFIG_DMA_SHARED_BUFFER
+extern gceSTATUS
+_DmabufAlloctorInit(
+    IN gckOS Os,
+    OUT gckALLOCATOR * Allocator
+    );
+#endif
+
+gcsALLOCATOR_DESC allocatorArray[] =
+{
+    /* Default allocator. */
+    gcmkDEFINE_ALLOCATOR_DESC("default", _DefaultAlloctorInit),
+
+#ifdef CONFIG_DMA_SHARED_BUFFER
+    /* Dmabuf allocator. */
+    gcmkDEFINE_ALLOCATOR_DESC("dmabuf", _DmabufAlloctorInit),
+#endif
+};
+
+#endif
diff --git a/src/hal/os/linux/kernel/allocator/default/gc_hal_kernel_allocator_dmabuf.c b/src/hal/os/linux/kernel/allocator/default/gc_hal_kernel_allocator_dmabuf.c
new file mode 100755
index 0000000..023ca2e
--- /dev/null
+++ b/src/hal/os/linux/kernel/allocator/default/gc_hal_kernel_allocator_dmabuf.c
@@ -0,0 +1,353 @@
+/****************************************************************************
+*
+*    The MIT License (MIT)
+*
+*    Copyright (c) 2014 Vivante Corporation
+*
+*    Permission is hereby granted, free of charge, to any person obtaining a
+*    copy of this software and associated documentation files (the "Software"),
+*    to deal in the Software without restriction, including without limitation
+*    the rights to use, copy, modify, merge, publish, distribute, sublicense,
+*    and/or sell copies of the Software, and to permit persons to whom the
+*    Software is furnished to do so, subject to the following conditions:
+*
+*    The above copyright notice and this permission notice shall be included in
+*    all copies or substantial portions of the Software.
+*
+*    THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+*    IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+*    FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+*    AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+*    LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+*    FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+*    DEALINGS IN THE SOFTWARE.
+*
+*****************************************************************************
+*
+*    The GPL License (GPL)
+*
+*    Copyright (C) 2014  Vivante Corporation
+*
+*    This program is free software; you can redistribute it and/or
+*    modify it under the terms of the GNU General Public License
+*    as published by the Free Software Foundation; either version 2
+*    of the License, or (at your option) any later version.
+*
+*    This program is distributed in the hope that it will be useful,
+*    but WITHOUT ANY WARRANTY; without even the implied warranty of
+*    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+*    GNU General Public License for more details.
+*
+*    You should have received a copy of the GNU General Public License
+*    along with this program; if not, write to the Free Software Foundation,
+*    Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+*
+*****************************************************************************
+*
+*    Note: This software is released under dual MIT and GPL licenses. A
+*    recipient may use this file under the terms of either the MIT license or
+*    GPL License. If you wish to use only one license not the other, you can
+*    indicate your decision by deleting one of the above license notices in your
+*    version of this file.
+*
+*****************************************************************************/
+
+
+#include "gc_hal_kernel_linux.h"
+#include "gc_hal_kernel_allocator.h"
+
+#include <linux/pagemap.h>
+#include <linux/seq_file.h>
+#include <linux/mman.h>
+#include <asm/atomic.h>
+#include <linux/dma-mapping.h>
+
+#include <linux/dma-buf.h>
+#include <linux/platform_device.h>
+
+#define _GC_OBJ_ZONE gcvZONE_OS
+
+/* Descriptor of a dma_buf imported. */
+typedef struct _gcsDMABUF
+{
+    struct dma_buf            *dmabuf;
+    struct dma_buf_attachment *attachment;
+    struct sg_table           *sgtable;
+    unsigned long             *pagearray;
+    int                       handle;
+    int                       fd;
+}
+gcsDMABUF;
+
+static gceSTATUS
+_DmabufAttach(
+    IN gckALLOCATOR Allocator,
+    IN gcsATTACH_DESC_PTR Desc,
+    IN PLINUX_MDL Mdl
+    )
+{
+    gceSTATUS status;
+
+    gckOS os = Allocator->os;
+
+    int fd = (int) Desc->handle;
+
+    struct dma_buf *dmabuf = NULL;
+    struct sg_table *sgt = NULL;
+    struct dma_buf_attachment *attachment = NULL;
+    int npages = 0;
+    unsigned long *pagearray = NULL;
+    int i, j, k = 0;
+    struct scatterlist *s;
+    gcsDMABUF *gcdmabuf = NULL;
+
+    gcmkHEADER();
+
+    gcmkVERIFY_OBJECT(os, gcvOBJ_OS);
+
+    /* Import dma buf handle. */
+    dmabuf = dma_buf_get(fd);
+
+    if (!dmabuf)
+    {
+        gcmkONERROR(gcvSTATUS_NOT_SUPPORTED);
+    }
+
+    attachment = dma_buf_attach(dmabuf, &os->device->platform->device->dev);
+
+    if (!attachment)
+    {
+        gcmkONERROR(gcvSTATUS_NOT_SUPPORTED);
+    }
+
+    sgt = dma_buf_map_attachment(attachment, DMA_BIDIRECTIONAL);
+
+    if (!sgt)
+    {
+        gcmkONERROR(gcvSTATUS_NOT_SUPPORTED);
+    }
+
+    /* Prepare page array. */
+    /* Get number of pages. */
+    for_each_sg(sgt->sgl, s, sgt->orig_nents, i)
+    {
+        npages += (sg_dma_len(s) + PAGE_SIZE - 1) / PAGE_SIZE;
+    }
+
+    /* Allocate page arrary. */
+    gcmkONERROR(gckOS_Allocate(os, npages * gcmSIZEOF(*pagearray), (gctPOINTER *)&pagearray));
+
+    /* Fill page arrary. */
+    for_each_sg(sgt->sgl, s, sgt->orig_nents, i)
+    {
+        for (j = 0; j < (sg_dma_len(s) + PAGE_SIZE - 1) / PAGE_SIZE; j++)
+        {
+            pagearray[k++] = sg_dma_address(s) + j * PAGE_SIZE;
+        }
+    }
+
+    /* Prepare descriptor. */
+    gcmkONERROR(gckOS_Allocate(os, sizeof(gcsDMABUF), (gctPOINTER *)&gcdmabuf));
+
+    gcdmabuf->fd = fd;
+    gcdmabuf->dmabuf = dmabuf;
+    gcdmabuf->pagearray = pagearray;
+    gcdmabuf->attachment = attachment;
+    gcdmabuf->sgtable = sgt;
+
+    /* Record page number. */
+    Mdl->numPages = npages;
+
+    Mdl->priv = gcdmabuf;
+
+    gcmkFOOTER_NO();
+    return gcvSTATUS_OK;
+
+OnError:
+    gcmkFOOTER();
+    return status;
+}
+
+
+static void
+_DmabufFree(
+    IN gckALLOCATOR Allocator,
+    IN PLINUX_MDL Mdl
+    )
+{
+    gcsDMABUF *gcdmabuf = Mdl->priv;
+    gckOS os = Allocator->os;
+
+    dma_buf_unmap_attachment(gcdmabuf->attachment, gcdmabuf->sgtable, DMA_BIDIRECTIONAL);
+
+    dma_buf_detach(gcdmabuf->dmabuf, gcdmabuf->attachment);
+
+    dma_buf_put(gcdmabuf->dmabuf);
+
+    gckOS_Free(os, gcdmabuf->pagearray);
+
+    gckOS_Free(os, gcdmabuf);
+}
+
+static gctINT
+_DmabufMapUser(
+    IN gckALLOCATOR Allocator,
+    IN PLINUX_MDL Mdl,
+    IN PLINUX_MDL_MAP MdlMap,
+    IN gctBOOL Cacheable
+    )
+{
+    gcsDMABUF *gcdmabuf = Mdl->priv;
+    gceSTATUS       status;
+    PLINUX_MDL      mdl = Mdl;
+    PLINUX_MDL_MAP  mdlMap = MdlMap;
+    struct file *   file = gcdmabuf->dmabuf->file;
+
+    mdlMap->vmaAddr = (gctSTRING)vm_mmap(file,
+                    0L,
+                    mdl->numPages * PAGE_SIZE,
+                    PROT_READ | PROT_WRITE,
+                    MAP_SHARED,
+                    0);
+
+    if (IS_ERR(mdlMap->vmaAddr))
+    {
+        gcmkONERROR(gcvSTATUS_OUT_OF_RESOURCES);
+    }
+
+    down_write(&current->mm->mmap_sem);
+
+    mdlMap->vma = find_vma(current->mm, (unsigned long)mdlMap->vmaAddr);
+
+    up_write(&current->mm->mmap_sem);
+
+    if (mdlMap->vma == gcvNULL)
+    {
+        gcmkONERROR(gcvSTATUS_OUT_OF_RESOURCES);
+    }
+
+    return 0;
+
+OnError:
+    return status;
+}
+
+static void
+_DmabufUnmapUser(
+    IN gckALLOCATOR Allocator,
+    IN gctPOINTER Logical,
+    IN gctUINT32 Size
+    )
+{
+    if (unlikely(current->mm == gcvNULL))
+    {
+        /* Do nothing if process is exiting. */
+        return;
+    }
+
+    vm_munmap((unsigned long)Logical, Size);
+}
+
+static gceSTATUS
+_DmabufMapKernel(
+    IN gckALLOCATOR Allocator,
+    IN PLINUX_MDL Mdl,
+    OUT gctPOINTER *Logical
+    )
+{
+    /* Kernel doesn't acess video memory. */
+    return gcvSTATUS_NOT_SUPPORTED;
+
+}
+
+static gceSTATUS
+_DmabufUnmapKernel(
+    IN gckALLOCATOR Allocator,
+    IN PLINUX_MDL Mdl,
+    IN gctPOINTER Logical
+    )
+{
+    /* Kernel doesn't acess video memory. */
+    return gcvSTATUS_NOT_SUPPORTED;
+}
+
+static gceSTATUS
+_DmabufLogicalToPhysical(
+    IN gckALLOCATOR Allocator,
+    IN PLINUX_MDL Mdl,
+    IN gctPOINTER Logical,
+    IN gctUINT32 ProcessID,
+    OUT gctPHYS_ADDR_T * Physical
+    )
+{
+    return gcvSTATUS_NOT_SUPPORTED;
+}
+
+
+static gceSTATUS
+_DmabufCache(
+    IN gckALLOCATOR Allocator,
+    IN PLINUX_MDL Mdl,
+    IN gctPOINTER Logical,
+    IN gctUINT32 Physical,
+    IN gctUINT32 Bytes,
+    IN gceCACHEOPERATION Operation
+    )
+{
+    return gcvSTATUS_OK;
+}
+
+
+static gceSTATUS
+_DmabufPhysical(
+    IN gckALLOCATOR Allocator,
+    IN PLINUX_MDL Mdl,
+    IN gctUINT32 Offset,
+    OUT gctPHYS_ADDR_T * Physical
+    )
+{
+    gcsDMABUF *gcdmabuf = Mdl->priv;
+
+    *Physical = gcdmabuf->pagearray[Offset];
+
+
+    return gcvSTATUS_OK;
+}
+
+/* Default allocator operations. */
+static gcsALLOCATOR_OPERATIONS DmabufAllocatorOperations =
+{
+    .Attach             = _DmabufAttach,
+    .Free               = _DmabufFree,
+    .MapUser            = _DmabufMapUser,
+    .UnmapUser          = _DmabufUnmapUser,
+    .MapKernel          = _DmabufMapKernel,
+    .UnmapKernel        = _DmabufUnmapKernel,
+    .LogicalToPhysical  = _DmabufLogicalToPhysical,
+    .Cache              = _DmabufCache,
+    .Physical           = _DmabufPhysical,
+};
+
+/* Default allocator entry. */
+gceSTATUS
+_DmabufAlloctorInit(
+    IN gckOS Os,
+    OUT gckALLOCATOR * Allocator
+    )
+{
+    gceSTATUS status;
+    gckALLOCATOR allocator;
+
+    gcmkONERROR(
+        gckALLOCATOR_Construct(Os, &DmabufAllocatorOperations, &allocator));
+
+    allocator->capability = gcvALLOC_FLAG_DMABUF;
+
+    *Allocator = allocator;
+
+    return gcvSTATUS_OK;
+
+OnError:
+    return status;
+}
+
diff --git a/src/hal/os/linux/kernel/gc_hal_kernel_allocator.c b/src/hal/os/linux/kernel/gc_hal_kernel_allocator.c
new file mode 100755
index 0000000..11c7add
--- /dev/null
+++ b/src/hal/os/linux/kernel/gc_hal_kernel_allocator.c
@@ -0,0 +1,972 @@
+/****************************************************************************
+*
+*    The MIT License (MIT)
+*
+*    Copyright (c) 2014 Vivante Corporation
+*
+*    Permission is hereby granted, free of charge, to any person obtaining a
+*    copy of this software and associated documentation files (the "Software"),
+*    to deal in the Software without restriction, including without limitation
+*    the rights to use, copy, modify, merge, publish, distribute, sublicense,
+*    and/or sell copies of the Software, and to permit persons to whom the
+*    Software is furnished to do so, subject to the following conditions:
+*
+*    The above copyright notice and this permission notice shall be included in
+*    all copies or substantial portions of the Software.
+*
+*    THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+*    IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+*    FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+*    AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+*    LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+*    FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+*    DEALINGS IN THE SOFTWARE.
+*
+*****************************************************************************
+*
+*    The GPL License (GPL)
+*
+*    Copyright (C) 2014  Vivante Corporation
+*
+*    This program is free software; you can redistribute it and/or
+*    modify it under the terms of the GNU General Public License
+*    as published by the Free Software Foundation; either version 2
+*    of the License, or (at your option) any later version.
+*
+*    This program is distributed in the hope that it will be useful,
+*    but WITHOUT ANY WARRANTY; without even the implied warranty of
+*    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+*    GNU General Public License for more details.
+*
+*    You should have received a copy of the GNU General Public License
+*    along with this program; if not, write to the Free Software Foundation,
+*    Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+*
+*****************************************************************************
+*
+*    Note: This software is released under dual MIT and GPL licenses. A
+*    recipient may use this file under the terms of either the MIT license or
+*    GPL License. If you wish to use only one license not the other, you can
+*    indicate your decision by deleting one of the above license notices in your
+*    version of this file.
+*
+*****************************************************************************/
+
+
+#include "gc_hal_kernel_linux.h"
+#include "gc_hal_kernel_allocator.h"
+#include <linux/pagemap.h>
+#include <linux/seq_file.h>
+#include <linux/mman.h>
+#include <asm/atomic.h>
+#include <linux/dma-mapping.h>
+#include <linux/slab.h>
+
+#include "gc_hal_kernel_allocator_array.h"
+#include "gc_hal_kernel_platform.h"
+
+#define _GC_OBJ_ZONE    gcvZONE_OS
+
+typedef struct _gcsDEFAULT_PRIV * gcsDEFAULT_PRIV_PTR;
+typedef struct _gcsDEFAULT_PRIV {
+    gctUINT32 low;
+    gctUINT32 high;
+}
+gcsDEFAULT_PRIV;
+
+/******************************************************************************\
+************************** Default Allocator Debugfs ***************************
+\******************************************************************************/
+
+int gc_usage_show(struct seq_file* m, void* data)
+{
+    gcsINFO_NODE *node = m->private;
+    gckALLOCATOR Allocator = node->device;
+    gcsDEFAULT_PRIV_PTR priv = Allocator->privateData;
+
+    seq_printf(m, "low:  %u bytes\n", priv->low);
+    seq_printf(m, "high: %u bytes\n", priv->high);
+
+    return 0;
+}
+
+static gcsINFO InfoList[] =
+{
+    {"lowHighUsage", gc_usage_show},
+};
+
+static void
+_DefaultAllocatorDebugfsInit(
+    IN gckALLOCATOR Allocator,
+    IN gckDEBUGFS_DIR Root
+    )
+{
+    gcmkVERIFY_OK(
+        gckDEBUGFS_DIR_Init(&Allocator->debugfsDir, Root->root, "default"));
+
+    gcmkVERIFY_OK(gckDEBUGFS_DIR_CreateFiles(
+        &Allocator->debugfsDir,
+        InfoList,
+        gcmCOUNTOF(InfoList),
+        Allocator
+        ));
+}
+
+static void
+_DefaultAllocatorDebugfsCleanup(
+    IN gckALLOCATOR Allocator
+    )
+{
+    gcmkVERIFY_OK(gckDEBUGFS_DIR_RemoveFiles(
+        &Allocator->debugfsDir,
+        InfoList,
+        gcmCOUNTOF(InfoList)
+        ));
+
+    gckDEBUGFS_DIR_Deinit(&Allocator->debugfsDir);
+}
+
+
+static void
+_NonContiguousFree(
+    IN struct page ** Pages,
+    IN gctUINT32 NumPages
+    )
+{
+    gctINT i;
+
+    gcmkHEADER_ARG("Pages=0x%X, NumPages=%d", Pages, NumPages);
+
+    gcmkASSERT(Pages != gcvNULL);
+
+    for (i = 0; i < NumPages; i++)
+    {
+        __free_page(Pages[i]);
+    }
+
+    if (is_vmalloc_addr(Pages))
+    {
+        vfree(Pages);
+    }
+    else
+    {
+        kfree(Pages);
+    }
+
+    gcmkFOOTER_NO();
+}
+
+static struct page **
+_NonContiguousAlloc(
+    IN gctUINT32 NumPages
+    )
+{
+    struct page ** pages;
+    struct page *p;
+    gctINT i, size;
+
+    gcmkHEADER_ARG("NumPages=%lu", NumPages);
+
+#if LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 32)
+    if (NumPages > totalram_pages)
+#else
+    if (NumPages > num_physpages)
+#endif
+    {
+        gcmkFOOTER_NO();
+        return gcvNULL;
+    }
+
+    size = NumPages * sizeof(struct page *);
+
+    pages = kmalloc(size, GFP_KERNEL | gcdNOWARN);
+
+    if (!pages)
+    {
+        pages = vmalloc(size);
+
+        if (!pages)
+        {
+            gcmkFOOTER_NO();
+            return gcvNULL;
+        }
+    }
+
+    for (i = 0; i < NumPages; i++)
+    {
+        p = alloc_page(GFP_KERNEL | __GFP_HIGHMEM | gcdNOWARN);
+
+        if (!p)
+        {
+            _NonContiguousFree(pages, i);
+            gcmkFOOTER_NO();
+            return gcvNULL;
+        }
+
+        pages[i] = p;
+    }
+
+    gcmkFOOTER_ARG("pages=0x%X", pages);
+    return pages;
+}
+
+gctSTRING
+_CreateKernelVirtualMapping(
+    IN PLINUX_MDL Mdl
+    )
+{
+    gctSTRING addr = 0;
+    gctINT numPages = Mdl->numPages;
+
+#if gcdNONPAGED_MEMORY_CACHEABLE
+    if (Mdl->contiguous)
+    {
+        addr = page_address(Mdl->u.contiguousPages);
+    }
+    else
+    {
+        addr = vmap(Mdl->u.nonContiguousPages,
+                    numPages,
+                    0,
+                    PAGE_KERNEL);
+
+        /* Trigger a page fault. */
+        memset(addr, 0, numPages * PAGE_SIZE);
+    }
+#else
+    struct page ** pages;
+    gctBOOL free = gcvFALSE;
+    gctINT i;
+
+    if (Mdl->contiguous)
+    {
+        pages = kmalloc(sizeof(struct page *) * numPages, GFP_KERNEL | gcdNOWARN);
+
+        if (!pages)
+        {
+            return gcvNULL;
+        }
+
+        for (i = 0; i < numPages; i++)
+        {
+            pages[i] = nth_page(Mdl->u.contiguousPages, i);
+        }
+
+        free = gcvTRUE;
+    }
+    else
+    {
+        pages = Mdl->u.nonContiguousPages;
+    }
+
+    /* ioremap() can't work on system memory since 2.6.38. */
+    addr = vmap(pages, numPages, 0, gcmkNONPAGED_MEMROY_PROT(PAGE_KERNEL));
+
+    if (free)
+    {
+        kfree(pages);
+    }
+
+#endif
+
+    return addr;
+}
+
+void
+_DestoryKernelVirtualMapping(
+    IN gctSTRING Addr
+    )
+{
+#if !gcdNONPAGED_MEMORY_CACHEABLE
+    vunmap(Addr);
+#endif
+}
+
+void
+_UnmapUserLogical(
+    IN gctPOINTER Logical,
+    IN gctUINT32  Size
+)
+{
+    if (unlikely(current->mm == gcvNULL))
+    {
+        /* Do nothing if process is exiting. */
+        return;
+    }
+
+#if LINUX_VERSION_CODE >= KERNEL_VERSION(3,5,0)
+    if (vm_munmap((unsigned long)Logical, Size) < 0)
+    {
+        gcmkTRACE_ZONE(
+                gcvLEVEL_WARNING, gcvZONE_OS,
+                "%s(%d): vm_munmap failed",
+                __FUNCTION__, __LINE__
+                );
+    }
+#else
+    down_write(&current->mm->mmap_sem);
+    if (do_munmap(current->mm, (unsigned long)Logical, Size) < 0)
+    {
+        gcmkTRACE_ZONE(
+                gcvLEVEL_WARNING, gcvZONE_OS,
+                "%s(%d): do_munmap failed",
+                __FUNCTION__, __LINE__
+                );
+    }
+    up_write(&current->mm->mmap_sem);
+#endif
+}
+
+/***************************************************************************\
+************************ Default Allocator **********************************
+\***************************************************************************/
+#define C_MAX_PAGENUM  (50*1024)
+static gceSTATUS
+_DefaultAlloc(
+    IN gckALLOCATOR Allocator,
+    INOUT PLINUX_MDL Mdl,
+    IN gctSIZE_T NumPages,
+    IN gctUINT32 Flags
+    )
+{
+    gceSTATUS status;
+    gctUINT32 order;
+    gctSIZE_T bytes;
+#if LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 27)
+    gctPOINTER addr = gcvNULL;
+#endif
+    gctUINT32 numPages;
+    gctUINT i = 0;
+    gctBOOL contiguous = Flags & gcvALLOC_FLAG_CONTIGUOUS;
+    struct sysinfo temsysinfo;
+    gcsDEFAULT_PRIV_PTR priv = (gcsDEFAULT_PRIV_PTR)Allocator->privateData;
+
+    gcmkHEADER_ARG("Mdl=%p NumPages=%d", Mdl, NumPages);
+
+    numPages = NumPages;
+    bytes = NumPages * PAGE_SIZE;
+    order = get_order(bytes);
+
+    si_meminfo(&temsysinfo);
+
+    if (Flags & gcvALLOC_FLAG_MEMLIMIT)
+    {
+        if ( (temsysinfo.freeram < NumPages) || ((temsysinfo.freeram-NumPages) < C_MAX_PAGENUM) )
+        {
+            gcmkONERROR(gcvSTATUS_OUT_OF_MEMORY);
+        }
+    }
+
+    if (contiguous)
+    {
+        if (order >= MAX_ORDER)
+        {
+            gcmkONERROR(gcvSTATUS_OUT_OF_MEMORY);
+        }
+
+#if LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 27)
+        addr =
+            alloc_pages_exact(bytes, GFP_KERNEL | gcdNOWARN | __GFP_NORETRY);
+
+        Mdl->u.contiguousPages = addr
+                               ? virt_to_page(addr)
+                               : gcvNULL;
+
+        Mdl->exact = gcvTRUE;
+#else
+        Mdl->u.contiguousPages =
+            alloc_pages(GFP_KERNEL | gcdNOWARN | __GFP_NORETRY, order);
+#endif
+
+        if (Mdl->u.contiguousPages == gcvNULL)
+        {
+            Mdl->u.contiguousPages =
+                alloc_pages(GFP_KERNEL | __GFP_HIGHMEM | gcdNOWARN, order);
+
+#if LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 27)
+            Mdl->exact = gcvFALSE;
+#endif
+        }
+    }
+    else
+    {
+        Mdl->u.nonContiguousPages = _NonContiguousAlloc(numPages);
+    }
+
+    if (Mdl->u.contiguousPages == gcvNULL && Mdl->u.nonContiguousPages == gcvNULL)
+    {
+        gcmkONERROR(gcvSTATUS_OUT_OF_MEMORY);
+    }
+
+    for (i = 0; i < numPages; i++)
+    {
+        struct page *page;
+
+        if (contiguous)
+        {
+            page = nth_page(Mdl->u.contiguousPages, i);
+        }
+        else
+        {
+            page = _NonContiguousToPage(Mdl->u.nonContiguousPages, i);
+        }
+
+        SetPageReserved(page);
+
+        if (!PageHighMem(page) && page_to_phys(page))
+        {
+            gcmkVERIFY_OK(
+                gckOS_CacheFlush(Allocator->os, _GetProcessID(), gcvNULL,
+                                 page_to_phys(page),
+                                 page_address(page),
+                                 PAGE_SIZE));
+
+            priv->low += PAGE_SIZE;
+        }
+        else
+        {
+            flush_dcache_page(page);
+
+#if !gcdCACHE_FUNCTION_UNIMPLEMENTED && defined(CONFIG_OUTER_CACHE) && gcdENABLE_OUTER_CACHE_PATCH
+            if (page_to_phys(page))
+            {
+                _HandleOuterCache(
+                    Allocator->os,
+                    page_to_phys(page),
+                    gcvNULL,
+                    PAGE_SIZE,
+                    gcvCACHE_FLUSH
+                    );
+            }
+#endif
+
+            priv->high += PAGE_SIZE;
+        }
+    }
+
+    gcmkFOOTER_NO();
+    return gcvSTATUS_OK;
+
+OnError:
+    gcmkFOOTER();
+    return status;
+}
+
+static void
+_DefaultFree(
+    IN gckALLOCATOR Allocator,
+    IN OUT PLINUX_MDL Mdl
+    )
+{
+    gctINT i;
+    struct page * page;
+    gcsDEFAULT_PRIV_PTR priv = (gcsDEFAULT_PRIV_PTR)Allocator->privateData;
+
+    for (i = 0; i < Mdl->numPages; i++)
+    {
+        if (Mdl->contiguous)
+        {
+            page = nth_page(Mdl->u.contiguousPages, i);
+        }
+        else
+        {
+            page = _NonContiguousToPage(Mdl->u.nonContiguousPages, i);
+        }
+
+        ClearPageReserved(page);
+
+        if (PageHighMem(page))
+        {
+            priv->high -= PAGE_SIZE;
+        }
+        else
+        {
+            priv->low -= PAGE_SIZE;
+        }
+    }
+
+    if (Mdl->contiguous)
+    {
+#if LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 27)
+        if (Mdl->exact == gcvTRUE)
+        {
+            free_pages_exact(page_address(Mdl->u.contiguousPages), Mdl->numPages * PAGE_SIZE);
+        }
+        else
+#endif
+        {
+            __free_pages(Mdl->u.contiguousPages, get_order(Mdl->numPages * PAGE_SIZE));
+        }
+    }
+    else
+    {
+        _NonContiguousFree(Mdl->u.nonContiguousPages, Mdl->numPages);
+    }
+}
+
+gctINT
+_DefaultMapUser(
+    gckALLOCATOR Allocator,
+    PLINUX_MDL Mdl,
+    PLINUX_MDL_MAP MdlMap,
+    gctBOOL Cacheable
+    )
+{
+
+    gctSTRING       addr;
+    unsigned long   start;
+    unsigned long   pfn;
+    gctINT i;
+    gckOS           os = Allocator->os;
+    gcsPLATFORM *   platform = os->device->platform;
+
+    PLINUX_MDL      mdl = Mdl;
+    PLINUX_MDL_MAP  mdlMap = MdlMap;
+
+    gcmkHEADER_ARG("Allocator=%p Mdl=%p MdlMap=%p gctBOOL=%d", Allocator, Mdl, MdlMap, Cacheable);
+
+#if LINUX_VERSION_CODE >= KERNEL_VERSION(3, 4, 0)
+    mdlMap->vmaAddr = (gctSTRING)vm_mmap(gcvNULL,
+                    0L,
+                    mdl->numPages * PAGE_SIZE,
+                    PROT_READ | PROT_WRITE,
+                    MAP_SHARED,
+                    0);
+#else
+    down_write(&current->mm->mmap_sem);
+
+    mdlMap->vmaAddr = (gctSTRING)do_mmap_pgoff(gcvNULL,
+                    0L,
+                    mdl->numPages * PAGE_SIZE,
+                    PROT_READ | PROT_WRITE,
+                    MAP_SHARED,
+                    0);
+
+    up_write(&current->mm->mmap_sem);
+#endif
+
+    gcmkTRACE_ZONE(
+        gcvLEVEL_INFO, gcvZONE_OS,
+        "%s(%d): vmaAddr->0x%X for phys_addr->0x%X",
+        __FUNCTION__, __LINE__,
+        (gctUINT32)(gctUINTPTR_T)mdlMap->vmaAddr,
+        (gctUINT32)(gctUINTPTR_T)mdl
+        );
+
+    if (IS_ERR(mdlMap->vmaAddr))
+    {
+        gcmkTRACE_ZONE(
+            gcvLEVEL_INFO, gcvZONE_OS,
+            "%s(%d): do_mmap_pgoff error",
+            __FUNCTION__, __LINE__
+            );
+
+        mdlMap->vmaAddr = gcvNULL;
+
+        gcmkFOOTER_ARG("*status=%d", gcvSTATUS_OUT_OF_MEMORY);
+        return gcvSTATUS_OUT_OF_MEMORY;
+    }
+
+    down_write(&current->mm->mmap_sem);
+
+    mdlMap->vma = find_vma(current->mm, (unsigned long)mdlMap->vmaAddr);
+
+    if (mdlMap->vma == gcvNULL)
+    {
+        up_write(&current->mm->mmap_sem);
+
+        gcmkTRACE_ZONE(
+            gcvLEVEL_INFO, gcvZONE_OS,
+            "%s(%d): find_vma error",
+            __FUNCTION__, __LINE__
+            );
+
+        mdlMap->vmaAddr = gcvNULL;
+
+        gcmkFOOTER_ARG("*status=%d", gcvSTATUS_OUT_OF_RESOURCES);
+        return gcvSTATUS_OUT_OF_RESOURCES;
+    }
+
+    mdlMap->vma->vm_flags |= gcdVM_FLAGS;
+
+    if (Cacheable == gcvFALSE)
+    {
+        /* Make this mapping non-cached. */
+        mdlMap->vma->vm_page_prot = gcmkPAGED_MEMROY_PROT(mdlMap->vma->vm_page_prot);
+    }
+
+    if (platform && platform->ops->adjustProt)
+    {
+        platform->ops->adjustProt(mdlMap->vma);
+    }
+
+    addr = mdl->addr;
+
+    /* Now map all the vmalloc pages to this user address. */
+    if (mdl->contiguous)
+    {
+        /* map kernel memory to user space.. */
+        if (remap_pfn_range(mdlMap->vma,
+                            mdlMap->vma->vm_start,
+                            page_to_pfn(mdl->u.contiguousPages),
+                            mdlMap->vma->vm_end - mdlMap->vma->vm_start,
+                            mdlMap->vma->vm_page_prot) < 0)
+        {
+            up_write(&current->mm->mmap_sem);
+
+            gcmkTRACE_ZONE(
+                gcvLEVEL_INFO, gcvZONE_OS,
+                "%s(%d): unable to mmap ret",
+                __FUNCTION__, __LINE__
+                );
+
+            mdlMap->vmaAddr = gcvNULL;
+
+            gcmkFOOTER_ARG("*status=%d", gcvSTATUS_OUT_OF_MEMORY);
+            return gcvSTATUS_OUT_OF_MEMORY;
+        }
+    }
+    else
+    {
+        start = mdlMap->vma->vm_start;
+
+        for (i = 0; i < mdl->numPages; i++)
+        {
+            pfn = _NonContiguousToPfn(mdl->u.nonContiguousPages, i);
+
+            if (remap_pfn_range(mdlMap->vma,
+                                start,
+                                pfn,
+                                PAGE_SIZE,
+                                mdlMap->vma->vm_page_prot) < 0)
+            {
+                up_write(&current->mm->mmap_sem);
+
+                mdlMap->vmaAddr = gcvNULL;
+
+                gcmkFOOTER_ARG("*status=%d", gcvSTATUS_OUT_OF_MEMORY);
+                return gcvSTATUS_OUT_OF_MEMORY;
+            }
+
+            start += PAGE_SIZE;
+            addr += PAGE_SIZE;
+        }
+    }
+
+    up_write(&current->mm->mmap_sem);
+
+    gcmkFOOTER_NO();
+    return gcvSTATUS_OK;
+}
+
+void
+_DefaultUnmapUser(
+    IN gckALLOCATOR Allocator,
+    IN gctPOINTER Logical,
+    IN gctUINT32 Size
+    )
+{
+    _UnmapUserLogical(Logical, Size);
+}
+
+gceSTATUS
+_DefaultMapKernel(
+    IN gckALLOCATOR Allocator,
+    IN PLINUX_MDL Mdl,
+    OUT gctPOINTER *Logical
+    )
+{
+    *Logical = _CreateKernelVirtualMapping(Mdl);
+    return gcvSTATUS_OK;
+}
+
+gceSTATUS
+_DefaultUnmapKernel(
+    IN gckALLOCATOR Allocator,
+    IN PLINUX_MDL Mdl,
+    IN gctPOINTER Logical
+    )
+{
+    _DestoryKernelVirtualMapping(Logical);
+    return gcvSTATUS_OK;
+}
+
+gceSTATUS
+_DefaultLogicalToPhysical(
+    IN gckALLOCATOR Allocator,
+    IN PLINUX_MDL Mdl,
+    IN gctPOINTER Logical,
+    IN gctUINT32 ProcessID,
+    OUT gctPHYS_ADDR_T * Physical
+    )
+{
+    return _ConvertLogical2Physical(
+                Allocator->os, Logical, ProcessID, Mdl, Physical);
+}
+
+gceSTATUS
+_DefaultCache(
+    IN gckALLOCATOR Allocator,
+    IN PLINUX_MDL Mdl,
+    IN gctPOINTER Logical,
+    IN gctUINT32 Physical,
+    IN gctUINT32 Bytes,
+    IN gceCACHEOPERATION Operation
+    )
+{
+    return gcvSTATUS_OK;
+}
+
+gceSTATUS
+_DefaultPhysical(
+    IN gckALLOCATOR Allocator,
+    IN PLINUX_MDL Mdl,
+    IN gctUINT32 Offset,
+    OUT gctPHYS_ADDR_T * Physical
+    )
+{
+    gcmkASSERT(Mdl->pagedMem && !Mdl->contiguous);
+    *Physical = _NonContiguousToPhys(Mdl->u.nonContiguousPages, Offset);
+
+    return gcvSTATUS_OK;
+}
+
+void
+_DefaultAllocatorDestructor(
+    IN void* PrivateData
+    )
+{
+    kfree(PrivateData);
+}
+
+/* Default allocator operations. */
+gcsALLOCATOR_OPERATIONS DefaultAllocatorOperations = {
+    .Alloc              = _DefaultAlloc,
+    .Free               = _DefaultFree,
+    .MapUser            = _DefaultMapUser,
+    .UnmapUser          = _DefaultUnmapUser,
+    .MapKernel          = _DefaultMapKernel,
+    .UnmapKernel        = _DefaultUnmapKernel,
+    .LogicalToPhysical  = _DefaultLogicalToPhysical,
+    .Cache              = _DefaultCache,
+    .Physical           = _DefaultPhysical,
+};
+
+/* Default allocator entry. */
+gceSTATUS
+_DefaultAlloctorInit(
+    IN gckOS Os,
+    OUT gckALLOCATOR * Allocator
+    )
+{
+    gceSTATUS status;
+    gckALLOCATOR allocator;
+    gcsDEFAULT_PRIV_PTR priv = gcvNULL;
+
+    gcmkONERROR(
+        gckALLOCATOR_Construct(Os, &DefaultAllocatorOperations, &allocator));
+
+    priv = kzalloc(gcmSIZEOF(gcsDEFAULT_PRIV), GFP_KERNEL | gcdNOWARN);
+
+    if (!priv)
+    {
+        gcmkONERROR(gcvSTATUS_OUT_OF_MEMORY);
+    }
+
+    /* Register private data. */
+    allocator->privateData = priv;
+    allocator->privateDataDestructor = _DefaultAllocatorDestructor;
+
+    allocator->debugfsInit = _DefaultAllocatorDebugfsInit;
+    allocator->debugfsCleanup = _DefaultAllocatorDebugfsCleanup;
+
+    allocator->capability = gcvALLOC_FLAG_CONTIGUOUS
+                          | gcvALLOC_FLAG_NON_CONTIGUOUS
+                          | gcvALLOC_FLAG_CACHEABLE
+                          | gcvALLOC_FLAG_MEMLIMIT
+                          ;
+
+    *Allocator = allocator;
+
+    return gcvSTATUS_OK;
+
+OnError:
+    return status;
+}
+
+/***************************************************************************\
+************************ Allocator helper ***********************************
+\***************************************************************************/
+
+gceSTATUS
+gckALLOCATOR_Construct(
+    IN gckOS Os,
+    IN gcsALLOCATOR_OPERATIONS * Operations,
+    OUT gckALLOCATOR * Allocator
+    )
+{
+    gceSTATUS status;
+    gckALLOCATOR allocator;
+
+    gcmkHEADER_ARG("Os=%p, Operations=%p, Allocator=%p",
+                   Os, Operations, Allocator);
+
+    gcmkVERIFY_OBJECT(Os, gcvOBJ_OS);
+    gcmkVERIFY_ARGUMENT(Allocator != gcvNULL);
+    gcmkVERIFY_ARGUMENT
+        (  Operations
+        && (Operations->Alloc || Operations->Attach)
+        && (Operations->Free)
+        && Operations->MapUser
+        && Operations->UnmapUser
+        && Operations->MapKernel
+        && Operations->UnmapKernel
+        && Operations->LogicalToPhysical
+        && Operations->Cache
+        && Operations->Physical
+        );
+
+    gcmkONERROR(
+        gckOS_Allocate(Os, gcmSIZEOF(gcsALLOCATOR), (gctPOINTER *)&allocator));
+
+    gckOS_ZeroMemory(allocator, gcmSIZEOF(gcsALLOCATOR));
+
+    /* Record os. */
+    allocator->os = Os;
+
+    /* Set operations. */
+    allocator->ops = Operations;
+
+    *Allocator = allocator;
+
+    gcmkFOOTER_NO();
+    return gcvSTATUS_OK;
+
+OnError:
+    gcmkFOOTER();
+    return status;
+}
+
+/******************************************************************************\
+******************************** Debugfs Support *******************************
+\******************************************************************************/
+
+static gceSTATUS
+_AllocatorDebugfsInit(
+    IN gckOS Os
+    )
+{
+    gceSTATUS status;
+    gckGALDEVICE device = Os->device;
+
+    gckDEBUGFS_DIR dir = &Os->allocatorDebugfsDir;
+
+    gcmkONERROR(gckDEBUGFS_DIR_Init(dir, device->debugfsDir.root, "allocators"));
+
+    return gcvSTATUS_OK;
+
+OnError:
+    return status;
+}
+
+static void
+_AllocatorDebugfsCleanup(
+    IN gckOS Os
+    )
+{
+    gckDEBUGFS_DIR dir = &Os->allocatorDebugfsDir;
+
+    gckDEBUGFS_DIR_Deinit(dir);
+}
+
+/***************************************************************************\
+************************ Allocator management *******************************
+\***************************************************************************/
+
+gceSTATUS
+gckOS_ImportAllocators(
+    gckOS Os
+    )
+{
+    gceSTATUS status;
+    gctUINT i;
+    gckALLOCATOR allocator;
+
+    _AllocatorDebugfsInit(Os);
+
+    INIT_LIST_HEAD(&Os->allocatorList);
+
+    for (i = 0; i < gcmCOUNTOF(allocatorArray); i++)
+    {
+        if (allocatorArray[i].construct)
+        {
+            /* Construct allocator. */
+            status = allocatorArray[i].construct(Os, &allocator);
+
+            if (gcmIS_ERROR(status))
+            {
+                gcmkPRINT("["DEVICE_NAME"]: Can't construct allocator(%s)",
+                          allocatorArray[i].name);
+
+                continue;
+            }
+
+            allocator->name = allocatorArray[i].name;
+
+            if (allocator->debugfsInit)
+            {
+                /* Init allocator's debugfs. */
+                allocator->debugfsInit(allocator, &Os->allocatorDebugfsDir);
+            }
+
+            list_add_tail(&allocator->head, &Os->allocatorList);
+        }
+    }
+
+#if gcdDEBUG
+    list_for_each_entry(allocator, &Os->allocatorList, head)
+    {
+        gcmkTRACE_ZONE(
+            gcvLEVEL_WARNING, gcvZONE_OS,
+            "%s(%d) Allocator: %s",
+            __FUNCTION__, __LINE__,
+            allocator->name
+            );
+    }
+#endif
+
+    return gcvSTATUS_OK;
+}
+
+gceSTATUS
+gckOS_FreeAllocators(
+    gckOS Os
+    )
+{
+    gckALLOCATOR allocator;
+    gckALLOCATOR temp;
+
+    list_for_each_entry_safe(allocator, temp, &Os->allocatorList, head)
+    {
+        list_del(&allocator->head);
+
+        if (allocator->debugfsCleanup)
+        {
+            /* Clean up allocator's debugfs. */
+            allocator->debugfsCleanup(allocator);
+        }
+
+        /* Free private data. */
+        if (allocator->privateDataDestructor && allocator->privateData)
+        {
+            allocator->privateDataDestructor(allocator->privateData);
+        }
+
+        gckOS_Free(Os, allocator);
+    }
+
+    _AllocatorDebugfsCleanup(Os);
+
+    return gcvSTATUS_OK;
+}
+
diff --git a/src/hal/os/linux/kernel/gc_hal_kernel_allocator.h b/src/hal/os/linux/kernel/gc_hal_kernel_allocator.h
new file mode 100755
index 0000000..72f7c40
--- /dev/null
+++ b/src/hal/os/linux/kernel/gc_hal_kernel_allocator.h
@@ -0,0 +1,470 @@
+/****************************************************************************
+*
+*    The MIT License (MIT)
+*
+*    Copyright (c) 2014 Vivante Corporation
+*
+*    Permission is hereby granted, free of charge, to any person obtaining a
+*    copy of this software and associated documentation files (the "Software"),
+*    to deal in the Software without restriction, including without limitation
+*    the rights to use, copy, modify, merge, publish, distribute, sublicense,
+*    and/or sell copies of the Software, and to permit persons to whom the
+*    Software is furnished to do so, subject to the following conditions:
+*
+*    The above copyright notice and this permission notice shall be included in
+*    all copies or substantial portions of the Software.
+*
+*    THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+*    IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+*    FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+*    AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+*    LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+*    FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+*    DEALINGS IN THE SOFTWARE.
+*
+*****************************************************************************
+*
+*    The GPL License (GPL)
+*
+*    Copyright (C) 2014  Vivante Corporation
+*
+*    This program is free software; you can redistribute it and/or
+*    modify it under the terms of the GNU General Public License
+*    as published by the Free Software Foundation; either version 2
+*    of the License, or (at your option) any later version.
+*
+*    This program is distributed in the hope that it will be useful,
+*    but WITHOUT ANY WARRANTY; without even the implied warranty of
+*    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+*    GNU General Public License for more details.
+*
+*    You should have received a copy of the GNU General Public License
+*    along with this program; if not, write to the Free Software Foundation,
+*    Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+*
+*****************************************************************************
+*
+*    Note: This software is released under dual MIT and GPL licenses. A
+*    recipient may use this file under the terms of either the MIT license or
+*    GPL License. If you wish to use only one license not the other, you can
+*    indicate your decision by deleting one of the above license notices in your
+*    version of this file.
+*
+*****************************************************************************/
+
+
+#ifndef __gc_hal_kernel_allocator_h_
+#define __gc_hal_kernel_allocator_h_
+
+#include "gc_hal_kernel_linux.h"
+
+typedef struct _gcsALLOCATOR * gckALLOCATOR;
+typedef struct _gcsATTACH_DESC * gcsATTACH_DESC_PTR;
+
+typedef struct _gcsALLOCATOR_OPERATIONS
+{
+    /**************************************************************************
+    **
+    ** Alloc
+    **
+    ** Allocte memory, request size is page aligned.
+    **
+    ** INPUT:
+    **
+    **    gckALLOCATOR Allocator
+    **        Pointer to an gckALLOCATOER object.
+    **
+    **    PLINUX_Mdl
+    **        Pointer to Mdl whichs stores information
+    **        about allocated memory.
+    **
+    **    gctSIZE_T NumPages
+    **        Number of pages need to allocate.
+    **
+    **    gctUINT32 Flag
+    **        Allocation option.
+    **
+    ** OUTPUT:
+    **
+    **      Nothing.
+    **
+    */
+    gceSTATUS
+    (*Alloc)(
+        IN gckALLOCATOR Allocator,
+        IN PLINUX_MDL Mdl,
+        IN gctSIZE_T NumPages,
+        IN gctUINT32 Flag
+        );
+
+    /**************************************************************************
+    **
+    ** Free
+    **
+    ** Free memory.
+    **
+    ** INPUT:
+    **
+    **     gckALLOCATOR Allocator
+    **          Pointer to an gckALLOCATOER object.
+    **
+    **     PLINUX_MDL Mdl
+    **          Mdl which stores information.
+    **
+    ** OUTPUT:
+    **
+    **      Nothing.
+    **
+    */
+    void
+    (*Free)(
+        IN gckALLOCATOR Allocator,
+        IN PLINUX_MDL Mdl
+        );
+
+    /**************************************************************************
+    **
+    ** MapUser
+    **
+    ** Map memory to user space.
+    **
+    ** INPUT:
+    **      gckALLOCATOR Allocator
+    **          Pointer to an gckALLOCATOER object.
+    **
+    **      PLINUX_MDL Mdl
+    **          Pointer to a Mdl.
+    **
+    **      PLINUX_MDL_MAP MdlMap
+    **          Pointer to a MdlMap, mapped address is stored
+    **          in MdlMap->vmaAddr
+    **
+    **      gctBOOL Cacheable
+    **          Whether this mapping is cacheable.
+    **
+    ** OUTPUT:
+    **
+    **      Nothing.
+    **
+    */
+    gctINT
+    (*MapUser)(
+        IN gckALLOCATOR Allocator,
+        IN PLINUX_MDL Mdl,
+        IN PLINUX_MDL_MAP MdlMap,
+        IN gctBOOL Cacheable
+        );
+
+    /**************************************************************************
+    **
+    ** UnmapUser
+    **
+    ** Unmap address from user address space.
+    **
+    ** INPUT:
+    **      gckALLOCATOR Allocator
+    **          Pointer to an gckALLOCATOER object.
+    **
+    **      gctPOINTER Logical
+    **          Address to be unmap
+    **
+    **      gctUINT32 Size
+    **          Size of address space
+    **
+    ** OUTPUT:
+    **
+    **      Nothing.
+    **
+    */
+    void
+    (*UnmapUser)(
+        IN gckALLOCATOR Allocator,
+        IN gctPOINTER Logical,
+        IN gctUINT32 Size
+        );
+
+    /**************************************************************************
+    **
+    ** MapKernel
+    **
+    ** Map memory to kernel space.
+    **
+    ** INPUT:
+    **      gckALLOCATOR Allocator
+    **          Pointer to an gckALLOCATOER object.
+    **
+    **      PLINUX_MDL Mdl
+    **          Pointer to a Mdl object.
+    **
+    ** OUTPUT:
+    **      gctPOINTER * Logical
+    **          Mapped kernel address.
+    */
+    gceSTATUS
+    (*MapKernel)(
+        IN gckALLOCATOR Allocator,
+        IN PLINUX_MDL Mdl,
+        OUT gctPOINTER *Logical
+        );
+
+    /**************************************************************************
+    **
+    ** UnmapKernel
+    **
+    ** Unmap memory from kernel space.
+    **
+    ** INPUT:
+    **      gckALLOCATOR Allocator
+    **          Pointer to an gckALLOCATOER object.
+    **
+    **      PLINUX_MDL Mdl
+    **          Pointer to a Mdl object.
+    **
+    **      gctPOINTER Logical
+    **          Mapped kernel address.
+    **
+    ** OUTPUT:
+    **
+    **      Nothing.
+    **
+    */
+    gceSTATUS
+    (*UnmapKernel)(
+        IN gckALLOCATOR Allocator,
+        IN PLINUX_MDL Mdl,
+        IN gctPOINTER Logical
+        );
+
+    /**************************************************************************
+    **
+    ** LogicalToPhysical
+    **
+    ** Get physical address from logical address, logical
+    ** address could be user virtual address or kernel
+    ** virtual address.
+    **
+    ** INPUT:
+    **      gckALLOCATOR Allocator
+    **          Pointer to an gckALLOCATOER object.
+    **
+    **      PLINUX_MDL Mdl
+    **          Pointer to a Mdl object.
+    **
+    **      gctPOINTER Logical
+    **          Mapped kernel address.
+    **
+    **      gctUINT32 ProcessID
+    **          pid of current process.
+    ** OUTPUT:
+    **
+    **      gctUINT32_PTR Physical
+    **          Physical address.
+    **
+    */
+    gceSTATUS
+    (*LogicalToPhysical)(
+        IN gckALLOCATOR Allocator,
+        IN PLINUX_MDL Mdl,
+        IN gctPOINTER Logical,
+        IN gctUINT32 ProcessID,
+        OUT gctPHYS_ADDR_T * Physical
+        );
+
+    /**************************************************************************
+    **
+    ** Cache
+    **
+    ** Maintain cache coherency.
+    **
+    ** INPUT:
+    **      gckALLOCATOR Allocator
+    **          Pointer to an gckALLOCATOER object.
+    **
+    **      PLINUX_MDL Mdl
+    **          Pointer to a Mdl object.
+    **
+    **      gctPOINTER Logical
+    **          Logical address, could be user address or kernel address
+    **
+    **      gctUINT32_PTR Physical
+    **          Physical address.
+    **
+    **      gctUINT32 Bytes
+    **          Size of memory region.
+    **
+    **      gceCACHEOPERATION Opertaion
+    **          Cache operation.
+    **
+    ** OUTPUT:
+    **
+    **      Nothing.
+    **
+    */
+    gceSTATUS (*Cache)(
+        IN gckALLOCATOR Allocator,
+        IN PLINUX_MDL Mdl,
+        IN gctPOINTER Logical,
+        IN gctUINT32 Physical,
+        IN gctUINT32 Bytes,
+        IN gceCACHEOPERATION Operation
+        );
+
+    /**************************************************************************
+    **
+    ** Physical
+    **
+    ** Get physical address from a offset in memory region.
+    **
+    ** INPUT:
+    **      gckALLOCATOR Allocator
+    **          Pointer to an gckALLOCATOER object.
+    **
+    **      PLINUX_MDL Mdl
+    **          Pointer to a Mdl object.
+    **
+    **      gctUINT32 Offset
+    **          Offset in this memory region.
+    **
+    ** OUTPUT:
+    **      gctUINT32_PTR Physical
+    **          Physical address.
+    **
+    */
+    gceSTATUS (*Physical)(
+        IN gckALLOCATOR Allocator,
+        IN PLINUX_MDL Mdl,
+        IN gctUINT32 Offset,
+        OUT gctPHYS_ADDR_T * Physical
+        );
+
+    /**************************************************************************
+    **
+    ** Attach
+    **
+    ** Import memory allocated by an external allocator.
+    **
+    ** INPUT:
+    **      gckALLOCATOR Allocator
+    **          Pointer to an gckALLOCATOER object.
+    **
+    **      gctUINT32 Handle
+    **          Handle of the memory.
+    **
+    ** OUTPUT:
+    **      None.
+    **
+    */
+    gceSTATUS (*Attach)(
+        IN gckALLOCATOR Allocator,
+        IN gcsATTACH_DESC_PTR Desc,
+        OUT PLINUX_MDL Mdl
+        );
+}
+gcsALLOCATOR_OPERATIONS;
+
+typedef struct _gcsALLOCATOR
+{
+    /* Pointer to gckOS Object. */
+    gckOS                     os;
+
+    /* Name. */
+    gctSTRING                 name;
+
+    /* Operations. */
+    gcsALLOCATOR_OPERATIONS*  ops;
+
+    /* Capability of this allocator. */
+    gctUINT32                 capability;
+
+    struct list_head          head;
+
+    /* Debugfs entry of this allocator. */
+    gcsDEBUGFS_DIR            debugfsDir;
+
+    /* Init allocator debugfs. */
+    void                      (*debugfsInit)(gckALLOCATOR, gckDEBUGFS_DIR);
+
+    /* Cleanup allocator debugfs. */
+    void                      (*debugfsCleanup)(gckALLOCATOR);
+
+    /* Private data used by customer allocator. */
+    void *                    privateData;
+
+    /* Private data destructor. */
+    void                      (*privateDataDestructor)(void *);
+}
+gcsALLOCATOR;
+
+typedef struct _gcsALLOCATOR_DESC
+{
+    /* Name of a allocator. */
+    char *                    name;
+
+    /* Entry function to construct a allocator. */
+    gceSTATUS                 (*construct)(gckOS, gckALLOCATOR *);
+}
+gcsALLOCATOR_DESC;
+
+typedef struct _gcsATTACH_DESC
+{
+    /* gcvALLOC_FLAG_DMABUF */
+    gctUINT32                  handle;
+
+    /* gcvALLOC_FLAG_USERMEMORY */
+    gctPOINTER                 memory;
+    gctUINT32                  physical;
+    gctSIZE_T                  size;
+}
+gcsATTACH_DESC;
+
+/*
+* Helpers
+*/
+
+/* Fill a gcsALLOCATOR_DESC structure. */
+#define gcmkDEFINE_ALLOCATOR_DESC(Name, Construct) \
+    { \
+        .name      = Name, \
+        .construct = Construct, \
+    }
+
+/* Construct a allocator. */
+gceSTATUS
+gckALLOCATOR_Construct(
+    IN gckOS Os,
+    IN gcsALLOCATOR_OPERATIONS * Operations,
+    OUT gckALLOCATOR * Allocator
+    );
+
+/*
+    How to implement customer allocator
+
+    Build in customer alloctor
+
+        It is recommanded that customer allocator is implmented in independent
+        source file(s) which is specified by CUSOMTER_ALLOCATOR_OBJS in Kbuld.
+
+    Register gcsALLOCATOR
+
+        For each customer specified allocator, a desciption entry must be added
+        to allocatorArray defined in gc_hal_kernel_allocator_array.h.
+
+        An entry in allocatorArray is a gcsALLOCATOR_DESC structure which describes
+        name and constructor of a gckALLOCATOR object.
+
+
+    Implement gcsALLOCATOR_DESC.init()
+
+        In gcsALLOCATOR_DESC.init(), gckALLOCATOR_Construct should be called
+        to create a gckALLOCATOR object, customer specified private data can
+        be put in gcsALLOCATOR.privateData.
+
+
+    Implement gcsALLOCATOR_OPERATIONS
+
+        When call gckALLOCATOR_Construct to create a gckALLOCATOR object, a
+        gcsALLOCATOR_OPERATIONS structure must be provided whose all members
+        implemented.
+
+*/
+#endif
diff --git a/src/hal/os/linux/kernel/gc_hal_kernel_debug.h b/src/hal/os/linux/kernel/gc_hal_kernel_debug.h
new file mode 100755
index 0000000..54782fd
--- /dev/null
+++ b/src/hal/os/linux/kernel/gc_hal_kernel_debug.h
@@ -0,0 +1,147 @@
+/****************************************************************************
+*
+*    The MIT License (MIT)
+*
+*    Copyright (c) 2014 Vivante Corporation
+*
+*    Permission is hereby granted, free of charge, to any person obtaining a
+*    copy of this software and associated documentation files (the "Software"),
+*    to deal in the Software without restriction, including without limitation
+*    the rights to use, copy, modify, merge, publish, distribute, sublicense,
+*    and/or sell copies of the Software, and to permit persons to whom the
+*    Software is furnished to do so, subject to the following conditions:
+*
+*    The above copyright notice and this permission notice shall be included in
+*    all copies or substantial portions of the Software.
+*
+*    THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+*    IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+*    FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+*    AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+*    LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+*    FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+*    DEALINGS IN THE SOFTWARE.
+*
+*****************************************************************************
+*
+*    The GPL License (GPL)
+*
+*    Copyright (C) 2014  Vivante Corporation
+*
+*    This program is free software; you can redistribute it and/or
+*    modify it under the terms of the GNU General Public License
+*    as published by the Free Software Foundation; either version 2
+*    of the License, or (at your option) any later version.
+*
+*    This program is distributed in the hope that it will be useful,
+*    but WITHOUT ANY WARRANTY; without even the implied warranty of
+*    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+*    GNU General Public License for more details.
+*
+*    You should have received a copy of the GNU General Public License
+*    along with this program; if not, write to the Free Software Foundation,
+*    Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+*
+*****************************************************************************
+*
+*    Note: This software is released under dual MIT and GPL licenses. A
+*    recipient may use this file under the terms of either the MIT license or
+*    GPL License. If you wish to use only one license not the other, you can
+*    indicate your decision by deleting one of the above license notices in your
+*    version of this file.
+*
+*****************************************************************************/
+
+
+#ifndef __gc_hal_kernel_debug_h_
+#define __gc_hal_kernel_debug_h_
+
+#include <gc_hal_kernel_linux.h>
+#include <linux/spinlock.h>
+#include <linux/time.h>
+#include <stdarg.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/******************************************************************************\
+****************************** OS-dependent Macros *****************************
+\******************************************************************************/
+
+typedef va_list gctARGUMENTS;
+
+#define gcmkARGUMENTS_START(Arguments, Pointer) \
+    va_start(Arguments, Pointer)
+
+#define gcmkARGUMENTS_END(Arguments) \
+    va_end(Arguments)
+
+#define gcmkARGUMENTS_ARG(Arguments, Type) \
+    va_arg(Arguments, Type)
+
+#define gcmkDECLARE_LOCK(__spinLock__) \
+    static DEFINE_SPINLOCK(__spinLock__); \
+    unsigned long __spinLock__##flags = 0;
+
+#define gcmkLOCKSECTION(__spinLock__) \
+    spin_lock_irqsave(&__spinLock__, __spinLock__##flags)
+
+#define gcmkUNLOCKSECTION(__spinLock__) \
+    spin_unlock_irqrestore(&__spinLock__, __spinLock__##flags)
+
+#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,24)
+#   define gcmkGETPROCESSID() \
+        task_tgid_vnr(current)
+#else
+#   define gcmkGETPROCESSID() \
+        current->tgid
+#endif
+
+#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,24)
+#   define gcmkGETTHREADID() \
+        task_pid_vnr(current)
+#else
+#   define gcmkGETTHREADID() \
+        current->pid
+#endif
+
+#define gcmkOUTPUT_STRING(String) \
+    if(gckDEBUGFS_IsEnabled()) {\
+        while(-ERESTARTSYS == gckDEBUGFS_Print(String));\
+    }else{\
+        printk(String); \
+    }\
+    touch_softlockup_watchdog()
+
+
+#define gcmkSPRINTF(Destination, Size, Message, Value) \
+    snprintf(Destination, Size, Message, Value)
+
+#define gcmkSPRINTF2(Destination, Size, Message, Value1, Value2) \
+    snprintf(Destination, Size, Message, Value1, Value2)
+
+#define gcmkSPRINTF3(Destination, Size, Message, Value1, Value2, Value3) \
+    snprintf(Destination, Size, Message, Value1, Value2, Value3)
+
+#define gcmkVSPRINTF(Destination, Size, Message, Arguments) \
+    vsnprintf(Destination, Size, Message, *((va_list*)Arguments))
+
+#define gcmkSTRCAT(Destination, Size, String) \
+    strncat(Destination, String, Size)
+
+#define gcmkMEMCPY(Destination, Source, Size) \
+    memcpy(Destination, Source, Size)
+
+#define gcmkSTRLEN(String) \
+    strlen(String)
+
+/* If not zero, forces data alignment in the variable argument list
+   by its individual size. */
+#define gcdALIGNBYSIZE      1
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* __gc_hal_kernel_debug_h_ */
diff --git a/src/hal/os/linux/kernel/gc_hal_kernel_debugfs.c b/src/hal/os/linux/kernel/gc_hal_kernel_debugfs.c
new file mode 100755
index 0000000..99b4a2f
--- /dev/null
+++ b/src/hal/os/linux/kernel/gc_hal_kernel_debugfs.c
@@ -0,0 +1,1181 @@
+/****************************************************************************
+*
+*    The MIT License (MIT)
+*
+*    Copyright (c) 2014 Vivante Corporation
+*
+*    Permission is hereby granted, free of charge, to any person obtaining a
+*    copy of this software and associated documentation files (the "Software"),
+*    to deal in the Software without restriction, including without limitation
+*    the rights to use, copy, modify, merge, publish, distribute, sublicense,
+*    and/or sell copies of the Software, and to permit persons to whom the
+*    Software is furnished to do so, subject to the following conditions:
+*
+*    The above copyright notice and this permission notice shall be included in
+*    all copies or substantial portions of the Software.
+*
+*    THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+*    IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+*    FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+*    AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+*    LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+*    FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+*    DEALINGS IN THE SOFTWARE.
+*
+*****************************************************************************
+*
+*    The GPL License (GPL)
+*
+*    Copyright (C) 2014  Vivante Corporation
+*
+*    This program is free software; you can redistribute it and/or
+*    modify it under the terms of the GNU General Public License
+*    as published by the Free Software Foundation; either version 2
+*    of the License, or (at your option) any later version.
+*
+*    This program is distributed in the hope that it will be useful,
+*    but WITHOUT ANY WARRANTY; without even the implied warranty of
+*    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+*    GNU General Public License for more details.
+*
+*    You should have received a copy of the GNU General Public License
+*    along with this program; if not, write to the Free Software Foundation,
+*    Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+*
+*****************************************************************************
+*
+*    Note: This software is released under dual MIT and GPL licenses. A
+*    recipient may use this file under the terms of either the MIT license or
+*    GPL License. If you wish to use only one license not the other, you can
+*    indicate your decision by deleting one of the above license notices in your
+*    version of this file.
+*
+*****************************************************************************/
+
+
+#ifdef MODULE
+#include <linux/module.h>
+#endif
+#include <linux/init.h>
+#include <linux/debugfs.h>
+#include <linux/slab.h>
+#ifdef MODVERSIONS
+#include <linux/modversions.h>
+#endif
+#include <linux/stddef.h>
+#include <linux/sched.h>
+#include <linux/kernel.h>
+#include <linux/timer.h>
+#include <linux/delay.h>
+#include <linux/errno.h>
+#include <linux/mutex.h>
+#include <linux/vmalloc.h>
+#include <linux/types.h>
+#include <linux/fs.h>
+#include <linux/poll.h>
+#include <asm/uaccess.h>
+#include <linux/completion.h>
+#include <linux/seq_file.h>
+#include "gc_hal_kernel_linux.h"
+#include "gc_hal_kernel.h"
+#include "gc_hal_kernel_debug.h"
+
+/*
+   Prequsite:
+
+   1) Debugfs feature must be enabled in the kernel.
+       1.a) You can enable this, in the compilation of the uImage, all you have to do is, In the "make menuconfig" part,
+       you have to enable the debugfs in the kernel hacking part of the menu.
+
+   HOW TO USE:
+   1) insert the driver with the following option logFileSize, Ex: insmod galcore.ko ...... logFileSize=10240
+   This gives a circular buffer of 10 MB
+
+   2)Usually after inserting the driver, the debug file system is mounted under /sys/kernel/debug/
+
+        2.a)If the debugfs is not mounted, you must do "mount -t debugfs none /sys/kernel/debug"
+
+   3) To read what is being printed in the debugfs file system:
+        Ex : cat /sys/kernel/debug/gc/galcore_trace
+
+   4)To write into the debug file system from user side :
+        Ex: echo "hello" > cat /sys/kernel/debug/gc/galcore_trace
+
+   5)To write into debugfs from kernel side, Use the function called gckDEBUGFS_Print
+
+   How to Get Video Memory Usage:
+   1) Select a process whose video memory usage can be dump, no need to reset it until <pid> is needed to be change.
+        echo <pid>  > /sys/kernel/debug/gc/vidmem
+
+   2) Get video memory usage.
+        cat /sys/kernel/debug/gc/vidmem
+
+   USECASE Kernel Dump:
+
+   1) Go to /hal/inc/gc_hal_options.h, and enable the following flags:
+        - #   define gcdDUMP                              1
+        - #   define gcdDUMP_IN_KERNEL          1
+        - #   define gcdDUMP_COMMAND          1
+
+    2) Go to /hal/kernel/gc_hal_kernel_command.c and disable the following flag
+        -#define gcdSIMPLE_COMMAND_DUMP  0
+
+    3) Compile the driver
+    4) insmod it with the logFileSize option
+    5) Run an application
+    6) You can get the dump by cat /sys/kernel/debug/gpu/galcore_trace
+
+ */
+
+/**/
+typedef va_list gctDBGARGS ;
+#define gcmkARGS_START(argument, pointer)   va_start(argument, pointer)
+#define gcmkARGS_END(argument)                        va_end(argument)
+
+#define gcmkDEBUGFS_PRINT(ArgumentSize, Message) \
+  { \
+      gctDBGARGS __arguments__; \
+      gcmkARGS_START(__arguments__, Message); \
+      _debugfs_res = _DebugFSPrint(ArgumentSize, Message, &__arguments__);\
+      gcmkARGS_END(__arguments__); \
+  }
+
+
+gcmkDECLARE_LOCK(traceLock);
+
+/* Debug File System Node Struct. */
+struct _gcsDEBUGFS_Node
+{
+    /*wait queues for read and write operations*/
+#if defined(DECLARE_WAIT_QUEUE_HEAD)
+    wait_queue_head_t read_q , write_q ;
+#else
+    struct wait_queue *read_q , *write_q ;
+#endif
+    struct dentry *parent ; /*parent directory*/
+    struct dentry *filen ; /*filename*/
+    struct dentry *vidmem;
+    struct semaphore sem ; /* mutual exclusion semaphore */
+    char *data ; /* The circular buffer data */
+    int size ; /* Size of the buffer pointed to by 'data' */
+    int refcount ; /* Files that have this buffer open */
+    int read_point ; /* Offset in circ. buffer of oldest data */
+    int write_point ; /* Offset in circ. buffer of newest data */
+    int offset ; /* Byte number of read_point in the stream */
+    struct _gcsDEBUGFS_Node *next ;
+
+    caddr_t temp;
+    int tempSize;
+};
+
+/* amount of data in the queue */
+#define gcmkNODE_QLEN(node) ( (node)->write_point >= (node)->read_point ? \
+         (node)->write_point - (node)->read_point : \
+         (node)->size - (node)->read_point + (node)->write_point)
+
+/* byte number of the last byte in the queue */
+#define gcmkNODE_FIRST_EMPTY_BYTE(node) ((node)->offset + gcmkNODE_QLEN(node))
+
+/*Synchronization primitives*/
+#define gcmkNODE_READQ(node) (&((node)->read_q))
+#define gcmkNODE_WRITEQ(node) (&((node)->write_q))
+#define gcmkNODE_SEM(node) (&((node)->sem))
+
+/*Utilities*/
+#define gcmkMIN(x, y) ((x) < (y) ? (x) : y)
+
+/*Debug File System Struct*/
+typedef struct _gcsDEBUGFS_
+{
+    gcsDEBUGFS_Node* linkedlist ;
+    gcsDEBUGFS_Node* currentNode ;
+    int isInited ;
+} gcsDEBUGFS_ ;
+
+/*debug file system*/
+static gcsDEBUGFS_ gc_dbgfs ;
+
+static int gc_debugfs_open(struct inode *inode, struct file *file)
+{
+    gcsINFO_NODE *node = inode->i_private;
+
+    return single_open(file, node->info->show, node);
+}
+
+static const struct file_operations gc_debugfs_operations = {
+    .owner = THIS_MODULE,
+    .open = gc_debugfs_open,
+    .read = seq_read,
+    .llseek = seq_lseek,
+    .release = single_release,
+};
+
+gceSTATUS
+gckDEBUGFS_DIR_Init(
+    IN gckDEBUGFS_DIR Dir,
+    IN struct dentry *root,
+    IN gctCONST_STRING Name
+    )
+{
+    Dir->root = debugfs_create_dir(Name, root);
+
+    if (!Dir->root)
+    {
+        return gcvSTATUS_NOT_SUPPORTED;
+    }
+
+    INIT_LIST_HEAD(&Dir->nodeList);
+
+    return gcvSTATUS_OK;
+}
+
+gceSTATUS
+gckDEBUGFS_DIR_CreateFiles(
+    IN gckDEBUGFS_DIR Dir,
+    IN gcsINFO * List,
+    IN int count,
+    IN gctPOINTER Data
+    )
+{
+    int i;
+    gcsINFO_NODE * node;
+    gceSTATUS status;
+
+    for (i = 0; i < count; i++)
+    {
+        /* Create a node. */
+        node = (gcsINFO_NODE *)kzalloc(sizeof(gcsINFO_NODE), GFP_KERNEL);
+
+        node->info   = &List[i];
+        node->device = Data;
+
+        /* Bind to a file. TODO: clean up when fail. */
+        node->entry = debugfs_create_file(
+            List[i].name, S_IRUGO|S_IWUSR, Dir->root, node, &gc_debugfs_operations);
+
+        if (!node->entry)
+        {
+            gcmkONERROR(gcvSTATUS_OUT_OF_MEMORY);
+        }
+
+        list_add(&(node->head), &(Dir->nodeList));
+    }
+
+    return gcvSTATUS_OK;
+
+OnError:
+    gcmkVERIFY_OK(gckDEBUGFS_DIR_RemoveFiles(Dir, List, count));
+    return status;
+}
+
+gceSTATUS
+gckDEBUGFS_DIR_RemoveFiles(
+    IN gckDEBUGFS_DIR Dir,
+    IN gcsINFO * List,
+    IN int count
+    )
+{
+    int i;
+    gcsINFO_NODE * node;
+    gcsINFO_NODE * temp;
+
+    for (i = 0; i < count; i++)
+    {
+        list_for_each_entry_safe(node, temp, &Dir->nodeList, head)
+        {
+            if (node->info == &List[i])
+            {
+                debugfs_remove(node->entry);
+                list_del(&node->head);
+                kfree(node);
+            }
+        }
+    }
+
+    return gcvSTATUS_OK;
+}
+
+void
+gckDEBUGFS_DIR_Deinit(
+    IN gckDEBUGFS_DIR Dir
+    )
+{
+    if (Dir->root != NULL)
+    {
+        debugfs_remove(Dir->root);
+        Dir->root = NULL;
+    }
+}
+
+/*******************************************************************************
+ **
+ **        READ & WRITE FUNCTIONS (START)
+ **
+ *******************************************************************************/
+
+/*******************************************************************************
+ **
+ **  _ReadFromNode
+ **
+ **    1) reading bytes out of a circular buffer with wraparound.
+ **    2)returns caddr_t, pointer to data read, which the caller must free.
+ **    3) length is (a pointer to) the number of bytes to be read, which will be set by this function to
+ **        be the number of bytes actually returned
+ **
+ *******************************************************************************/
+static caddr_t
+_ReadFromNode (
+                gcsDEBUGFS_Node* Node ,
+                size_t *Length ,
+                loff_t *Offset
+                )
+{
+    caddr_t retval ;
+    int bytes_copied = 0 , n , start_point , remaining ;
+
+    /* find the smaller of the total bytes we have available and what
+     * the user is asking for */
+    *Length = gcmkMIN ( *Length , gcmkNODE_QLEN(Node) ) ;
+
+    remaining = * Length ;
+
+    /* Get start point. */
+    start_point = Node->read_point;
+
+    /* allocate memory to return */
+    if (remaining > Node->tempSize)
+    {
+        kfree(Node->temp);
+
+        if ( ( retval = kmalloc ( sizeof (char ) * remaining , GFP_KERNEL ) ) == NULL )
+            return NULL;
+
+        Node->temp = retval;
+        Node->tempSize = remaining;
+    }
+    else
+    {
+        retval = Node->temp;
+    }
+
+    /* copy the (possibly noncontiguous) data to our buffer */
+    while ( remaining )
+    {
+        n = gcmkMIN ( remaining , Node->size - start_point ) ;
+        memcpy ( retval + bytes_copied , Node->data + start_point , n ) ;
+        bytes_copied += n ;
+        remaining -= n ;
+        start_point = ( start_point + n ) % Node->size ;
+    }
+
+    /* advance user's file pointer */
+    Node->read_point = (Node->read_point + * Length) % Node->size ;
+
+    return retval ;
+}
+
+/*******************************************************************************
+ **
+ **  _WriteToNode
+ **
+ ** 1) writes to a circular buffer with wraparound.
+ ** 2)in case of an overflow, it overwrites the oldest unread data.
+ **
+ *********************************************************************************/
+static void
+_WriteToNode (
+               gcsDEBUGFS_Node* Node ,
+               caddr_t Buf ,
+               int Length
+               )
+{
+    int bytes_copied = 0 ;
+    int overflow = 0 ;
+    int n ;
+
+    if ( Length + gcmkNODE_QLEN ( Node ) >= ( Node->size - 1 ) )
+    {
+        overflow = 1 ;
+    }
+
+    while ( Length )
+    {
+        /* how many contiguous bytes are available from the write point to
+         * the end of the circular buffer? */
+        n = gcmkMIN ( Length , Node->size - Node->write_point ) ;
+        memcpy ( Node->data + Node->write_point , Buf + bytes_copied , n ) ;
+        bytes_copied += n ;
+        Length -= n ;
+        Node->write_point = ( Node->write_point + n ) % Node->size ;
+    }
+
+    /* if there is an overflow, reset the read point to read whatever is
+     * the oldest data that we have, that has not yet been
+     * overwritten. */
+    if ( overflow )
+    {
+        Node->read_point = ( Node->write_point + 1 ) % Node->size ;
+    }
+}
+
+/*******************************************************************************
+ **
+ **         PRINTING UTILITY (START)
+ **
+ *******************************************************************************/
+
+/*******************************************************************************
+ **
+ **  _GetArgumentSize
+ **
+ **
+ *******************************************************************************/
+static gctINT
+_GetArgumentSize (
+                   IN gctCONST_STRING Message
+                   )
+{
+    gctINT i , count ;
+
+    for ( i = 0 , count = 0 ; Message[i] ; i += 1 )
+    {
+        if ( Message[i] == '%' )
+        {
+            count += 1 ;
+        }
+    }
+    return count * sizeof (unsigned int ) ;
+}
+
+/*******************************************************************************
+ **
+ ** _AppendString
+ **
+ **
+ *******************************************************************************/
+static ssize_t
+_AppendString (
+                IN gcsDEBUGFS_Node* Node ,
+                IN gctCONST_STRING String ,
+                IN int Length
+                )
+{
+    int n ;
+
+    /* if the message is longer than the buffer, just take the beginning
+     * of it, in hopes that the reader (if any) will have time to read
+     * before we wrap around and obliterate it */
+    n = gcmkMIN ( Length , Node->size - 1 ) ;
+
+    gcmkLOCKSECTION(traceLock);
+
+    /* now copy it into the circular buffer and free our temp copy */
+    _WriteToNode ( Node , (caddr_t)String , n ) ;
+
+    gcmkUNLOCKSECTION(traceLock);
+
+    return n ;
+}
+
+/*******************************************************************************
+ **
+ ** _DebugFSPrint
+ **
+ **
+ *******************************************************************************/
+static ssize_t
+_DebugFSPrint (
+                IN unsigned int ArgumentSize ,
+                IN const char* Message ,
+                IN gctDBGARGS * Arguments
+
+                )
+{
+    char buffer[MAX_LINE_SIZE] ;
+    int len ;
+    ssize_t res=0;
+
+    len = vsnprintf ( buffer , sizeof (buffer ) , Message , *( va_list * ) Arguments ) ;
+
+    buffer[len] = '\0' ;
+
+    /* Add end-of-line if missing. */
+    if ( buffer[len - 1] != '\n' )
+    {
+        buffer[len ++] = '\n' ;
+        buffer[len] = '\0' ;
+    }
+
+    res = _AppendString ( gc_dbgfs.currentNode , buffer , len ) ;
+
+    wake_up_interruptible ( gcmkNODE_READQ ( gc_dbgfs.currentNode ) ) ; /* blocked in read*/
+
+    return res;
+}
+
+/*******************************************************************************
+ **
+ **                     LINUX SYSTEM FUNCTIONS (START)
+ **
+ *******************************************************************************/
+
+/*******************************************************************************
+ **
+ **  find the vivlog structure associated with an inode.
+ **      returns a    pointer to the structure if found, NULL if not found
+ **
+ *******************************************************************************/
+static gcsDEBUGFS_Node*
+_GetNodeInfo (
+               IN struct inode *Inode
+               )
+{
+    gcsDEBUGFS_Node* node ;
+
+    if ( Inode == NULL )
+        return NULL ;
+
+    for ( node = gc_dbgfs.linkedlist ; node != NULL ; node = node->next )
+        if ( node->filen->d_inode->i_ino == Inode->i_ino )
+            return node ;
+
+    return NULL ;
+}
+
+/*******************************************************************************
+ **
+ **   _DebugFSRead
+ **
+ *******************************************************************************/
+static ssize_t
+_DebugFSRead (
+               struct file *file ,
+               char __user * buffer ,
+               size_t length ,
+               loff_t * offset
+               )
+{
+    int retval ;
+    caddr_t data_to_return ;
+    gcsDEBUGFS_Node* node ;
+    /* get the metadata about this emlog */
+    if ( ( node = _GetNodeInfo ( file_inode(file) ) ) == NULL )
+    {
+        printk ( "debugfs_read: record not found\n" ) ;
+        return - EIO ;
+    }
+
+    gcmkLOCKSECTION(traceLock);
+
+    /* wait until there's data available (unless we do nonblocking reads) */
+    while (!gcmkNODE_QLEN(node))
+    {
+        gcmkUNLOCKSECTION(traceLock);
+
+        if ( file->f_flags & O_NONBLOCK )
+        {
+            return - EAGAIN ;
+        }
+
+        if ( wait_event_interruptible ( ( *( gcmkNODE_READQ ( node ) ) ) , ( *offset < gcmkNODE_FIRST_EMPTY_BYTE ( node ) ) ) )
+        {
+            return - ERESTARTSYS ; /* signal: tell the fs layer to handle it */
+        }
+
+        gcmkLOCKSECTION(traceLock);
+    }
+
+    data_to_return = _ReadFromNode ( node , &length , offset ) ;
+
+    gcmkUNLOCKSECTION(traceLock);
+
+    if ( data_to_return == NULL )
+    {
+        retval = 0 ;
+        goto unlock ;
+    }
+    if ( copy_to_user ( buffer , data_to_return , length ) > 0 )
+    {
+        retval = - EFAULT ;
+    }
+    else
+    {
+        retval = length ;
+    }
+unlock:
+
+    wake_up_interruptible ( gcmkNODE_WRITEQ ( node ) ) ;
+    return retval ;
+}
+
+/*******************************************************************************
+ **
+ **_DebugFSWrite
+ **
+ *******************************************************************************/
+static ssize_t
+_DebugFSWrite (
+                struct file *file ,
+                const char __user * buffer ,
+                size_t length ,
+                loff_t * offset
+                )
+{
+    caddr_t message = NULL ;
+    int n ;
+    gcsDEBUGFS_Node*node ;
+
+    /* get the metadata about this log */
+    if ( ( node = _GetNodeInfo ( file_inode(file) ) ) == NULL )
+    {
+        return - EIO ;
+    }
+
+    if ( down_interruptible ( gcmkNODE_SEM ( node ) ) )
+    {
+        return - ERESTARTSYS ;
+    }
+
+    /* if the message is longer than the buffer, just take the beginning
+     * of it, in hopes that the reader (if any) will have time to read
+     * before we wrap around and obliterate it */
+    n = gcmkMIN ( length , node->size - 1 ) ;
+
+    /* make sure we have the memory for it */
+    if ( ( message = kmalloc ( n , GFP_KERNEL ) ) == NULL )
+    {
+        up ( gcmkNODE_SEM ( node ) ) ;
+        return - ENOMEM ;
+    }
+
+
+    /* copy into our temp buffer */
+    if ( copy_from_user ( message , buffer , n ) > 0 )
+    {
+        up ( gcmkNODE_SEM ( node ) ) ;
+        kfree ( message ) ;
+        return - EFAULT ;
+    }
+
+    /* now copy it into the circular buffer and free our temp copy */
+    _WriteToNode ( node , message , n ) ;
+
+    kfree ( message ) ;
+    up ( gcmkNODE_SEM ( node ) ) ;
+
+    /* wake up any readers that might be waiting for the data.  we call
+     * schedule in the vague hope that a reader will run before the
+     * writer's next write, to avoid losing data. */
+    wake_up_interruptible ( gcmkNODE_READQ ( node ) ) ;
+
+    return n ;
+}
+
+int dumpProcess = 0;
+
+void
+_PrintCounter(
+    struct seq_file *file,
+    gcsDATABASE_COUNTERS * counter,
+    gctCONST_STRING Name
+    )
+{
+    seq_printf(file,"Counter: %s\n", Name);
+
+    seq_printf(file,"%-9s%10s","", "All");
+
+    seq_printf(file, "\n");
+
+    seq_printf(file,"%-9s","Current");
+
+    seq_printf(file,"%10lld", counter->bytes);
+
+    seq_printf(file, "\n");
+
+    seq_printf(file,"%-9s","Maximum");
+
+    seq_printf(file,"%10lld", counter->maxBytes);
+
+    seq_printf(file, "\n");
+
+    seq_printf(file,"%-9s","Total");
+
+    seq_printf(file,"%10lld", counter->totalBytes);
+
+    seq_printf(file, "\n");
+}
+
+void
+_ShowCounters(
+    struct seq_file *file,
+    gcsDATABASE_PTR database
+    )
+{
+    gctUINT i = 0;
+    gcsDATABASE_COUNTERS * counter;
+    gcsDATABASE_COUNTERS * nonPaged;
+
+    static gctCONST_STRING surfaceTypes[] = {
+        "UNKNOWN",
+        "Index",
+        "Vertex",
+        "Texture",
+        "RT",
+        "Depth",
+        "Bitmap",
+        "TS",
+        "Image",
+        "Mask",
+        "Scissor",
+        "HZDepth",
+    };
+
+    /* Get pointer to counters. */
+    counter = &database->vidMem;
+
+    nonPaged = &database->nonPaged;
+
+    seq_printf(file,"Counter: vidMem (for each surface type)\n");
+
+    seq_printf(file,"%-9s%10s","", "All");
+
+    for (i = 1; i < gcvSURF_NUM_TYPES; i++)
+    {
+        counter = &database->vidMemType[i];
+
+        seq_printf(file, "%10s",surfaceTypes[i]);
+    }
+
+    seq_printf(file, "\n");
+
+    seq_printf(file,"%-9s","Current");
+
+    seq_printf(file,"%10lld", database->vidMem.bytes);
+
+    for (i = 1; i < gcvSURF_NUM_TYPES; i++)
+    {
+        counter = &database->vidMemType[i];
+
+        seq_printf(file,"%10lld", counter->bytes);
+    }
+
+    seq_printf(file, "\n");
+
+    seq_printf(file,"%-9s","Maximum");
+
+    seq_printf(file,"%10lld", database->vidMem.maxBytes);
+
+    for (i = 1; i < gcvSURF_NUM_TYPES; i++)
+    {
+        counter = &database->vidMemType[i];
+
+        seq_printf(file,"%10lld", counter->maxBytes);
+    }
+
+    seq_printf(file, "\n");
+
+    seq_printf(file,"%-9s","Total");
+
+    seq_printf(file,"%10lld", database->vidMem.totalBytes);
+
+    for (i = 1; i < gcvSURF_NUM_TYPES; i++)
+    {
+        counter = &database->vidMemType[i];
+
+        seq_printf(file,"%10lld", counter->totalBytes);
+    }
+
+    seq_printf(file, "\n");
+
+    seq_printf(file,"Counter: vidMem (for each pool)\n");
+
+    seq_printf(file,"%-9s%10s","", "All");
+
+    for (i = 1; i < gcvPOOL_NUMBER_OF_POOLS; i++)
+    {
+        seq_printf(file, "%10d", i);
+    }
+
+    seq_printf(file, "\n");
+
+    seq_printf(file,"%-9s","Current");
+
+    seq_printf(file,"%10lld", database->vidMem.bytes);
+
+    for (i = 1; i < gcvPOOL_NUMBER_OF_POOLS; i++)
+    {
+        counter = &database->vidMemPool[i];
+
+        seq_printf(file,"%10lld", counter->bytes);
+    }
+
+    seq_printf(file, "\n");
+
+    seq_printf(file,"%-9s","Maximum");
+
+    seq_printf(file,"%10lld", database->vidMem.maxBytes);
+
+    for (i = 1; i < gcvPOOL_NUMBER_OF_POOLS; i++)
+    {
+        counter = &database->vidMemPool[i];
+
+        seq_printf(file,"%10lld", counter->maxBytes);
+    }
+
+    seq_printf(file, "\n");
+
+    seq_printf(file,"%-9s","Total");
+
+    seq_printf(file,"%10lld", database->vidMem.totalBytes);
+
+    for (i = 1; i < gcvPOOL_NUMBER_OF_POOLS; i++)
+    {
+        counter = &database->vidMemPool[i];
+
+        seq_printf(file,"%10lld", counter->totalBytes);
+    }
+
+    seq_printf(file, "\n");
+
+    /* Print nonPaged. */
+    _PrintCounter(file, &database->nonPaged, "nonPaged");
+    _PrintCounter(file, &database->contiguous, "contiguous");
+    _PrintCounter(file, &database->mapUserMemory, "mapUserMemory");
+    _PrintCounter(file, &database->mapMemory, "mapMemory");
+}
+
+static int vidmem_show(struct seq_file *file, void *unused)
+{
+    gceSTATUS status;
+    gcsDATABASE_PTR database;
+    gckGALDEVICE device = file->private;
+
+    gckKERNEL kernel = _GetValidKernel(device);
+
+    /* Find the database. */
+    gcmkONERROR(
+        gckKERNEL_FindDatabase(kernel, dumpProcess, gcvFALSE, &database));
+
+    seq_printf(file, "VidMem Usage (Process %d):\n", dumpProcess);
+
+    _ShowCounters(file, database);
+
+    return 0;
+
+OnError:
+    return 0;
+}
+
+static int
+vidmem_open(
+    struct inode *inode,
+    struct file *file
+    )
+{
+    return single_open(file, vidmem_show, inode->i_private);
+}
+
+static ssize_t
+vidmem_write(
+    struct file *file,
+    const char __user *buf,
+    size_t count,
+    loff_t *pos
+    )
+{
+    dumpProcess = simple_strtol(buf, NULL, 0);
+    return count;
+}
+
+/*******************************************************************************
+ **
+ ** File Operations Table
+ **
+ *******************************************************************************/
+static const struct file_operations debugfs_operations = {
+                                                          .owner = THIS_MODULE ,
+                                                          .read = _DebugFSRead ,
+                                                          .write = _DebugFSWrite ,
+} ;
+
+static const struct file_operations vidmem_operations = {
+    .owner = THIS_MODULE ,
+    .open = vidmem_open,
+    .read = seq_read,
+    .write = vidmem_write,
+    .llseek = seq_lseek,
+} ;
+
+/*******************************************************************************
+ **
+ **                             INTERFACE FUNCTIONS (START)
+ **
+ *******************************************************************************/
+
+/*******************************************************************************
+ **
+ **  gckDEBUGFS_IsEnabled
+ **
+ **
+ **  INPUT:
+ **
+ **  OUTPUT:
+ **
+ *******************************************************************************/
+
+
+gctINT
+gckDEBUGFS_IsEnabled ( void )
+{
+    return gc_dbgfs.isInited ;
+}
+/*******************************************************************************
+ **
+ **  gckDEBUGFS_Initialize
+ **
+ **
+ **  INPUT:
+ **
+ **  OUTPUT:
+ **
+ *******************************************************************************/
+
+gctINT
+gckDEBUGFS_Initialize ( void )
+{
+    if ( ! gc_dbgfs.isInited )
+    {
+        gc_dbgfs.linkedlist = gcvNULL ;
+        gc_dbgfs.currentNode = gcvNULL ;
+        gc_dbgfs.isInited = 1 ;
+    }
+    return gc_dbgfs.isInited ;
+}
+/*******************************************************************************
+ **
+ **  gckDEBUGFS_Terminate
+ **
+ **
+ **  INPUT:
+ **
+ **  OUTPUT:
+ **
+ *******************************************************************************/
+
+gctINT
+gckDEBUGFS_Terminate ( void )
+{
+    gcsDEBUGFS_Node * next = gcvNULL ;
+    gcsDEBUGFS_Node * temp = gcvNULL ;
+    if ( gc_dbgfs.isInited )
+    {
+        temp = gc_dbgfs.linkedlist ;
+        while ( temp != gcvNULL )
+        {
+            next = temp->next ;
+            gckDEBUGFS_FreeNode ( temp ) ;
+            kfree ( temp ) ;
+            temp = next ;
+        }
+        gc_dbgfs.isInited = 0 ;
+    }
+    return 0 ;
+}
+
+
+/*******************************************************************************
+ **
+ **  gckDEBUGFS_CreateNode
+ **
+ **
+ **  INPUT:
+ **
+ **  OUTPUT:
+ **
+ **     gckDEBUGFS_FreeNode * Device
+ **          Pointer to a variable receiving the gcsDEBUGFS_Node object pointer on
+ **          success.
+ *********************************************************************************/
+
+gctINT
+gckDEBUGFS_CreateNode (
+    IN gctPOINTER Device,
+    IN gctINT SizeInKB ,
+    IN struct dentry * Root ,
+    IN gctCONST_STRING NodeName ,
+    OUT gcsDEBUGFS_Node **Node
+    )
+{
+    gcsDEBUGFS_Node*node ;
+    /* allocate space for our metadata and initialize it */
+    if ( ( node = kmalloc ( sizeof (gcsDEBUGFS_Node ) , GFP_KERNEL ) ) == NULL )
+        goto struct_malloc_failed ;
+
+    /*Zero it out*/
+    memset ( node , 0 , sizeof (gcsDEBUGFS_Node ) ) ;
+
+    /*Init the sync primitives*/
+#if defined(DECLARE_WAIT_QUEUE_HEAD)
+    init_waitqueue_head ( gcmkNODE_READQ ( node ) ) ;
+#else
+    init_waitqueue ( gcmkNODE_READQ ( node ) ) ;
+#endif
+
+#if defined(DECLARE_WAIT_QUEUE_HEAD)
+    init_waitqueue_head ( gcmkNODE_WRITEQ ( node ) ) ;
+#else
+    init_waitqueue ( gcmkNODE_WRITEQ ( node ) ) ;
+#endif
+    sema_init ( gcmkNODE_SEM ( node ) , 1 ) ;
+    /*End the sync primitives*/
+
+    /*creating the debug file system*/
+    node->parent = Root;
+
+    if (SizeInKB)
+    {
+        /* figure out how much of a buffer this should be and allocate the buffer */
+        node->size = 1024 * SizeInKB ;
+        if ( ( node->data = ( char * ) vmalloc ( sizeof (char ) * node->size ) ) == NULL )
+            goto data_malloc_failed ;
+
+        node->tempSize = 0;
+        node->temp = NULL;
+
+        /*creating the file*/
+        node->filen = debugfs_create_file(NodeName, S_IRUGO|S_IWUSR, node->parent, NULL,
+                                          &debugfs_operations);
+    }
+
+    node->vidmem
+        = debugfs_create_file("vidmem", S_IRUGO|S_IWUSR, node->parent, Device, &vidmem_operations);
+
+    /* add it to our linked list */
+    node->next = gc_dbgfs.linkedlist ;
+    gc_dbgfs.linkedlist = node ;
+
+
+    /* pass the struct back */
+    *Node = node ;
+    return 0 ;
+
+
+data_malloc_failed:
+    kfree ( node ) ;
+struct_malloc_failed:
+    return - ENOMEM ;
+}
+
+/*******************************************************************************
+ **
+ **  gckDEBUGFS_FreeNode
+ **
+ **
+ **  INPUT:
+ **
+ **  OUTPUT:
+ **
+ *******************************************************************************/
+void
+gckDEBUGFS_FreeNode (
+                             IN gcsDEBUGFS_Node * Node
+                             )
+{
+
+    gcsDEBUGFS_Node **ptr ;
+
+    if ( Node == NULL )
+    {
+        printk ( "null passed to free_vinfo\n" ) ;
+        return ;
+    }
+
+    down ( gcmkNODE_SEM ( Node ) ) ;
+    /*free data*/
+    vfree ( Node->data ) ;
+
+    kfree(Node->temp);
+
+    /*Close Debug fs*/
+    if (Node->vidmem)
+    {
+        debugfs_remove(Node->vidmem);
+    }
+
+    if ( Node->filen )
+    {
+        debugfs_remove ( Node->filen ) ;
+    }
+
+    /* now delete the node from the linked list */
+    ptr = & ( gc_dbgfs.linkedlist ) ;
+    while ( *ptr != Node )
+    {
+        if ( ! *ptr )
+        {
+            printk ( "corrupt info list!\n" ) ;
+            break ;
+        }
+        else
+            ptr = & ( ( **ptr ).next ) ;
+    }
+    *ptr = Node->next ;
+    up ( gcmkNODE_SEM ( Node ) ) ;
+}
+
+/*******************************************************************************
+ **
+ **   gckDEBUGFS_SetCurrentNode
+ **
+ **
+ **  INPUT:
+ **
+ **  OUTPUT:
+ **
+ *******************************************************************************/
+void
+gckDEBUGFS_SetCurrentNode (
+                                   IN gcsDEBUGFS_Node * Node
+                                   )
+{
+    gc_dbgfs.currentNode = Node ;
+}
+
+/*******************************************************************************
+ **
+ **   gckDEBUGFS_GetCurrentNode
+ **
+ **
+ **  INPUT:
+ **
+ **  OUTPUT:
+ **
+ *******************************************************************************/
+void
+gckDEBUGFS_GetCurrentNode (
+                                   OUT gcsDEBUGFS_Node ** Node
+                                   )
+{
+    *Node = gc_dbgfs.currentNode ;
+}
+
+/*******************************************************************************
+ **
+ **   gckDEBUGFS_Print
+ **
+ **
+ **  INPUT:
+ **
+ **  OUTPUT:
+ **
+ *******************************************************************************/
+ssize_t
+gckDEBUGFS_Print (
+                          IN gctCONST_STRING Message ,
+                          ...
+                          )
+{
+    ssize_t _debugfs_res;
+    gcmkDEBUGFS_PRINT ( _GetArgumentSize ( Message ) , Message ) ;
+    return _debugfs_res;
+}
diff --git a/src/hal/os/linux/kernel/gc_hal_kernel_debugfs.h b/src/hal/os/linux/kernel/gc_hal_kernel_debugfs.h
new file mode 100755
index 0000000..9a15d77
--- /dev/null
+++ b/src/hal/os/linux/kernel/gc_hal_kernel_debugfs.h
@@ -0,0 +1,169 @@
+/****************************************************************************
+*
+*    The MIT License (MIT)
+*
+*    Copyright (c) 2014 Vivante Corporation
+*
+*    Permission is hereby granted, free of charge, to any person obtaining a
+*    copy of this software and associated documentation files (the "Software"),
+*    to deal in the Software without restriction, including without limitation
+*    the rights to use, copy, modify, merge, publish, distribute, sublicense,
+*    and/or sell copies of the Software, and to permit persons to whom the
+*    Software is furnished to do so, subject to the following conditions:
+*
+*    The above copyright notice and this permission notice shall be included in
+*    all copies or substantial portions of the Software.
+*
+*    THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+*    IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+*    FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+*    AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+*    LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+*    FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+*    DEALINGS IN THE SOFTWARE.
+*
+*****************************************************************************
+*
+*    The GPL License (GPL)
+*
+*    Copyright (C) 2014  Vivante Corporation
+*
+*    This program is free software; you can redistribute it and/or
+*    modify it under the terms of the GNU General Public License
+*    as published by the Free Software Foundation; either version 2
+*    of the License, or (at your option) any later version.
+*
+*    This program is distributed in the hope that it will be useful,
+*    but WITHOUT ANY WARRANTY; without even the implied warranty of
+*    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+*    GNU General Public License for more details.
+*
+*    You should have received a copy of the GNU General Public License
+*    along with this program; if not, write to the Free Software Foundation,
+*    Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+*
+*****************************************************************************
+*
+*    Note: This software is released under dual MIT and GPL licenses. A
+*    recipient may use this file under the terms of either the MIT license or
+*    GPL License. If you wish to use only one license not the other, you can
+*    indicate your decision by deleting one of the above license notices in your
+*    version of this file.
+*
+*****************************************************************************/
+
+
+#include <stdarg.h>
+
+#ifndef __gc_hal_kernel_debugfs_h_
+#define __gc_hal_kernel_debugfs_h_
+
+ #define MAX_LINE_SIZE 768           /* Max bytes for a line of debug info */
+
+
+ typedef struct _gcsDEBUGFS_Node gcsDEBUGFS_Node;
+
+typedef struct _gcsDEBUGFS_DIR *gckDEBUGFS_DIR;
+typedef struct _gcsDEBUGFS_DIR
+{
+    struct dentry *     root;
+    struct list_head    nodeList;
+}
+gcsDEBUGFS_DIR;
+
+typedef struct _gcsINFO
+{
+    const char *        name;
+    int                 (*show)(struct seq_file*, void*);
+}
+gcsINFO;
+
+typedef struct _gcsINFO_NODE
+{
+    gcsINFO *          info;
+    gctPOINTER         device;
+    struct dentry *    entry;
+    struct list_head   head;
+}
+gcsINFO_NODE;
+
+gceSTATUS
+gckDEBUGFS_DIR_Init(
+    IN gckDEBUGFS_DIR Dir,
+    IN struct dentry *root,
+    IN gctCONST_STRING Name
+    );
+
+gceSTATUS
+gckDEBUGFS_DIR_CreateFiles(
+    IN gckDEBUGFS_DIR Dir,
+    IN gcsINFO * List,
+    IN int count,
+    IN gctPOINTER Data
+    );
+
+gceSTATUS
+gckDEBUGFS_DIR_RemoveFiles(
+    IN gckDEBUGFS_DIR Dir,
+    IN gcsINFO * List,
+    IN int count
+    );
+
+void
+gckDEBUGFS_DIR_Deinit(
+    IN gckDEBUGFS_DIR Dir
+    );
+
+/*******************************************************************************
+ **
+ **                             System Related
+ **
+ *******************************************************************************/
+
+gctINT gckDEBUGFS_IsEnabled(void);
+
+gctINT gckDEBUGFS_Initialize(void);
+
+gctINT gckDEBUGFS_Terminate(void);
+
+
+/*******************************************************************************
+ **
+ **                             Node Related
+ **
+ *******************************************************************************/
+
+gctINT
+gckDEBUGFS_CreateNode(
+    IN gctPOINTER Device,
+    IN gctINT SizeInKB,
+    IN struct dentry * Root,
+    IN gctCONST_STRING NodeName,
+    OUT gcsDEBUGFS_Node **Node
+    );
+
+void gckDEBUGFS_FreeNode(
+            IN gcsDEBUGFS_Node  * Node
+            );
+
+
+
+void gckDEBUGFS_SetCurrentNode(
+            IN gcsDEBUGFS_Node  * Node
+            );
+
+
+
+void gckDEBUGFS_GetCurrentNode(
+            OUT gcsDEBUGFS_Node  ** Node
+            );
+
+
+ssize_t gckDEBUGFS_Print(
+                IN gctCONST_STRING  Message,
+                ...
+                );
+
+#endif
+
+
diff --git a/src/hal/os/linux/kernel/gc_hal_kernel_device.c b/src/hal/os/linux/kernel/gc_hal_kernel_device.c
new file mode 100755
index 0000000..f7ee2c6
--- /dev/null
+++ b/src/hal/os/linux/kernel/gc_hal_kernel_device.c
@@ -0,0 +1,2337 @@
+/****************************************************************************
+*
+*    The MIT License (MIT)
+*
+*    Copyright (c) 2014 Vivante Corporation
+*
+*    Permission is hereby granted, free of charge, to any person obtaining a
+*    copy of this software and associated documentation files (the "Software"),
+*    to deal in the Software without restriction, including without limitation
+*    the rights to use, copy, modify, merge, publish, distribute, sublicense,
+*    and/or sell copies of the Software, and to permit persons to whom the
+*    Software is furnished to do so, subject to the following conditions:
+*
+*    The above copyright notice and this permission notice shall be included in
+*    all copies or substantial portions of the Software.
+*
+*    THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+*    IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+*    FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+*    AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+*    LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+*    FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+*    DEALINGS IN THE SOFTWARE.
+*
+*****************************************************************************
+*
+*    The GPL License (GPL)
+*
+*    Copyright (C) 2014  Vivante Corporation
+*
+*    This program is free software; you can redistribute it and/or
+*    modify it under the terms of the GNU General Public License
+*    as published by the Free Software Foundation; either version 2
+*    of the License, or (at your option) any later version.
+*
+*    This program is distributed in the hope that it will be useful,
+*    but WITHOUT ANY WARRANTY; without even the implied warranty of
+*    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+*    GNU General Public License for more details.
+*
+*    You should have received a copy of the GNU General Public License
+*    along with this program; if not, write to the Free Software Foundation,
+*    Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+*
+*****************************************************************************
+*
+*    Note: This software is released under dual MIT and GPL licenses. A
+*    recipient may use this file under the terms of either the MIT license or
+*    GPL License. If you wish to use only one license not the other, you can
+*    indicate your decision by deleting one of the above license notices in your
+*    version of this file.
+*
+*****************************************************************************/
+
+
+#include "gc_hal_kernel_linux.h"
+#include <linux/pagemap.h>
+#include <linux/seq_file.h>
+#include <linux/mman.h>
+#include <linux/slab.h>
+
+#define _GC_OBJ_ZONE    gcvZONE_DEVICE
+
+#define DEBUG_FILE          "galcore_trace"
+#define PARENT_FILE         "gpu"
+
+#define gcdDEBUG_FS_WARN    "Experimental debug entry, may be removed in future release, do NOT rely on it!\n"
+
+#ifdef FLAREON
+    static struct dove_gpio_irq_handler gc500_handle;
+#endif
+
+/******************************************************************************\
+******************************** Debugfs Support *******************************
+\******************************************************************************/
+
+/******************************************************************************\
+***************************** DEBUG SHOW FUNCTIONS *****************************
+\******************************************************************************/
+
+int gc_info_show(struct seq_file* m, void* data)
+{
+    gcsINFO_NODE *node = m->private;
+    gckGALDEVICE device = node->device;
+    int i = 0;
+    gceCHIPMODEL chipModel;
+    gctUINT32 chipRevision;
+
+    for (i = 0; i < gcdMAX_GPU_COUNT; i++)
+    {
+        if (device->irqLines[i] != -1)
+        {
+            {
+                chipModel = device->kernels[i]->hardware->identity.chipModel;
+                chipRevision = device->kernels[i]->hardware->identity.chipRevision;
+            }
+
+            seq_printf(m, "gpu      : %d\n", i);
+            seq_printf(m, "model    : %4x\n", chipModel);
+            seq_printf(m, "revision : %4x\n", chipRevision);
+            seq_printf(m, "\n");
+        }
+    }
+
+    return 0;
+}
+
+int gc_clients_show(struct seq_file* m, void* data)
+{
+    gcsINFO_NODE *node = m->private;
+    gckGALDEVICE device = node->device;
+
+    gckKERNEL kernel = _GetValidKernel(device);
+
+    gcsDATABASE_PTR database;
+    gctINT i, pid;
+    gctUINT8 name[24];
+
+    seq_printf(m, "%-8s%s\n", "PID", "NAME");
+    seq_printf(m, "------------------------\n");
+
+    /* Acquire the database mutex. */
+    gcmkVERIFY_OK(
+        gckOS_AcquireMutex(kernel->os, kernel->db->dbMutex, gcvINFINITE));
+
+    /* Walk the databases. */
+    for (i = 0; i < gcmCOUNTOF(kernel->db->db); ++i)
+    {
+        for (database = kernel->db->db[i];
+             database != gcvNULL;
+             database = database->next)
+        {
+            pid = database->processID;
+
+            gcmkVERIFY_OK(gckOS_ZeroMemory(name, gcmSIZEOF(name)));
+
+            gcmkVERIFY_OK(gckOS_GetProcessNameByPid(pid, gcmSIZEOF(name), name));
+
+            seq_printf(m, "%-8d%s\n", pid, name);
+        }
+    }
+
+    /* Release the database mutex. */
+    gcmkVERIFY_OK(gckOS_ReleaseMutex(kernel->os, kernel->db->dbMutex));
+
+    /* Success. */
+    return 0;
+}
+
+static void
+_CounterAdd(
+    gcsDATABASE_COUNTERS * Dest,
+    gcsDATABASE_COUNTERS * Src
+    )
+{
+    Dest->bytes += Src->bytes;
+    Dest->maxBytes += Src->maxBytes;
+    Dest->totalBytes += Src->totalBytes;
+}
+
+static void
+_CounterPrint(
+    gcsDATABASE_COUNTERS * Counter,
+    gctCONST_STRING Name,
+    struct seq_file* m
+    )
+{
+    seq_printf(m, "    %s:\n", Name);
+    seq_printf(m, "        Used  : %10llu B\n", Counter->bytes);
+}
+
+int gc_meminfo_show(struct seq_file* m, void* data)
+{
+    gcsINFO_NODE *node = m->private;
+    gckGALDEVICE device = node->device;
+    gckKERNEL kernel = _GetValidKernel(device);
+    gckVIDMEM memory;
+    gceSTATUS status;
+    gcsDATABASE_PTR database;
+    gctUINT32 i;
+
+    gctUINT32 free = 0, used = 0, total = 0;
+
+    gcsDATABASE_COUNTERS contiguousCounter = {0, 0, 0};
+    gcsDATABASE_COUNTERS virtualCounter = {0, 0, 0};
+    gcsDATABASE_COUNTERS nonPagedCounter = {0, 0, 0};
+
+    status = gckKERNEL_GetVideoMemoryPool(kernel, gcvPOOL_SYSTEM, &memory);
+
+    if (gcmIS_SUCCESS(status))
+    {
+        gcmkVERIFY_OK(
+            gckOS_AcquireMutex(memory->os, memory->mutex, gcvINFINITE));
+
+        free  = memory->freeBytes;
+        used  = memory->bytes - memory->freeBytes;
+        total = memory->bytes;
+
+        gcmkVERIFY_OK(gckOS_ReleaseMutex(memory->os, memory->mutex));
+    }
+
+    seq_printf(m, "VIDEO MEMORY:\n");
+    seq_printf(m, "    gcvPOOL_SYSTEM:\n");
+    seq_printf(m, "        Free  : %10u B\n", free);
+    seq_printf(m, "        Used  : %10u B\n", used);
+    seq_printf(m, "        Total : %10u B\n", total);
+
+    /* Acquire the database mutex. */
+    gcmkVERIFY_OK(
+        gckOS_AcquireMutex(kernel->os, kernel->db->dbMutex, gcvINFINITE));
+
+    /* Walk the databases. */
+    for (i = 0; i < gcmCOUNTOF(kernel->db->db); ++i)
+    {
+        for (database = kernel->db->db[i];
+             database != gcvNULL;
+             database = database->next)
+        {
+            gcsDATABASE_COUNTERS * counter = &database->vidMemPool[gcvPOOL_CONTIGUOUS];
+            _CounterAdd(&contiguousCounter, counter);
+
+            counter = &database->vidMemPool[gcvPOOL_VIRTUAL];
+            _CounterAdd(&virtualCounter, counter);
+
+
+            counter = &database->nonPaged;
+            _CounterAdd(&nonPagedCounter, counter);
+        }
+    }
+
+    /* Release the database mutex. */
+    gcmkVERIFY_OK(gckOS_ReleaseMutex(kernel->os, kernel->db->dbMutex));
+
+    _CounterPrint(&contiguousCounter, "gcvPOOL_CONTIGUOUS", m);
+    _CounterPrint(&virtualCounter, "gcvPOOL_VIRTUAL", m);
+
+    seq_printf(m, "\n");
+
+    seq_printf(m, "NON PAGED MEMORY:\n");
+    seq_printf(m, "    Used  : %10llu B\n", nonPagedCounter.bytes);
+
+    return 0;
+}
+
+static int
+_ShowRecord(
+    IN struct seq_file *file,
+    IN gcsDATABASE_RECORD_PTR record
+    )
+{
+    seq_printf(file, "%4d%8d%16p%16p%16zu\n",
+        record->type,
+        record->kernel->core,
+        record->data,
+        record->physical,
+        record->bytes
+        );
+
+    return 0;
+}
+
+static int
+_ShowRecords(
+    IN struct seq_file *File,
+    IN gcsDATABASE_PTR Database
+    )
+{
+    gctUINT i;
+
+    seq_printf(File, "Records:\n");
+
+    seq_printf(File, "%s%8s%16s%16s%16s\n",
+               "Type", "GPU", "Data", "Physical", "Bytes");
+
+    for (i = 0; i < gcmCOUNTOF(Database->list); i++)
+    {
+        gcsDATABASE_RECORD_PTR record = Database->list[i];
+
+        while (record != NULL)
+        {
+            _ShowRecord(File, record);
+            record = record->next;
+        }
+    }
+
+    return 0;
+}
+
+void
+_ShowCounters(
+    struct seq_file *File,
+    gcsDATABASE_PTR Database
+    );
+
+static void
+_ShowProcess(
+    IN struct seq_file *File,
+    IN gcsDATABASE_PTR Database
+    )
+{
+    gctINT pid;
+    gctUINT8 name[24];
+
+    /* Process ID and name */
+    pid = Database->processID;
+    gcmkVERIFY_OK(gckOS_ZeroMemory(name, gcmSIZEOF(name)));
+    gcmkVERIFY_OK(gckOS_GetProcessNameByPid(pid, gcmSIZEOF(name), name));
+
+    seq_printf(File, "--------------------------------------------------------------------------------\n");
+    seq_printf(File, "Process: %-8d %s\n", pid, name);
+
+    /* Detailed records */
+    _ShowRecords(File, Database);
+
+    seq_printf(File, "Counters:\n");
+
+    _ShowCounters(File, Database);
+}
+
+static void
+_ShowProcesses(
+    IN struct seq_file * file,
+    IN gckKERNEL Kernel
+    )
+{
+    gcsDATABASE_PTR database;
+    gctINT i;
+    static gctUINT64 idleTime = 0;
+
+    /* Acquire the database mutex. */
+    gcmkVERIFY_OK(
+        gckOS_AcquireMutex(Kernel->os, Kernel->db->dbMutex, gcvINFINITE));
+
+    if (Kernel->db->idleTime)
+    {
+        /* Record idle time if DB upated. */
+        idleTime = Kernel->db->idleTime;
+        Kernel->db->idleTime = 0;
+    }
+
+    /* Idle time since last call */
+    seq_printf(file, "GPU Idle: %llu ns\n",  idleTime);
+
+    /* Walk the databases. */
+    for (i = 0; i < gcmCOUNTOF(Kernel->db->db); ++i)
+    {
+        for (database = Kernel->db->db[i];
+             database != gcvNULL;
+             database = database->next)
+        {
+            _ShowProcess(file, database);
+        }
+    }
+
+    /* Release the database mutex. */
+    gcmkVERIFY_OK(gckOS_ReleaseMutex(Kernel->os, Kernel->db->dbMutex));
+}
+
+static int
+gc_db_show(struct seq_file *m, void *data)
+{
+    gcsINFO_NODE *node = m->private;
+    gckGALDEVICE device = node->device;
+    gckKERNEL kernel = _GetValidKernel(device);
+    _ShowProcesses(m, kernel);
+    return 0 ;
+}
+
+static int
+gc_version_show(struct seq_file *m, void *data)
+{
+    gcsINFO_NODE *node = m->private;
+    gckGALDEVICE device = node->device;
+    gcsPLATFORM * platform = device->platform;
+    gctCONST_STRING name;
+
+    seq_printf(m, "%s built at %s\n",  gcvVERSION_STRING, HOST);
+
+    if (platform->ops->name)
+    {
+        platform->ops->name(platform, &name);
+        seq_printf(m, "Platform path: %s\n", name);
+    }
+    else
+    {
+        seq_printf(m, "Code path: %s\n", __FILE__);
+    }
+
+    return 0 ;
+}
+
+/*******************************************************************************
+**
+** Show PM state timer.
+**
+** Entry is called as 'idle' for compatible reason, it shows more information
+** than idle actually.
+**
+**  Start: Start time of this counting period.
+**  End: End time of this counting peroid.
+**  On: Time GPU stays in gcvPOWER_0N.
+**  Off: Time GPU stays in gcvPOWER_0FF.
+**  Idle: Time GPU stays in gcvPOWER_IDLE.
+**  Suspend: Time GPU stays in gcvPOWER_SUSPEND.
+*/
+static int
+gc_idle_show(struct seq_file *m, void *data)
+{
+    gcsINFO_NODE *node = m->private;
+    gckGALDEVICE device = node->device;
+    gckKERNEL kernel = _GetValidKernel(device);
+
+    gctUINT64 start;
+    gctUINT64 end;
+    gctUINT64 on;
+    gctUINT64 off;
+    gctUINT64 idle;
+    gctUINT64 suspend;
+
+    gckHARDWARE_QueryStateTimer(kernel->hardware, &start, &end, &on, &off, &idle, &suspend);
+
+    /* Idle time since last call */
+    seq_printf(m, "Start:   %llu ns\n",  start);
+    seq_printf(m, "End:     %llu ns\n",  end);
+    seq_printf(m, "On:      %llu ns\n",  on);
+    seq_printf(m, "Off:     %llu ns\n",  off);
+    seq_printf(m, "Idle:    %llu ns\n",  idle);
+    seq_printf(m, "Suspend: %llu ns\n",  suspend);
+
+    return 0 ;
+}
+
+extern void
+_DumpState(
+    IN gckKERNEL Kernel
+    );
+
+static int
+gc_dump_trigger_show(struct seq_file *m, void *data)
+{
+    gcsINFO_NODE *node = m->private;
+    gckGALDEVICE device = node->device;
+    gckKERNEL kernel = _GetValidKernel(device);
+
+    seq_printf(m, gcdDEBUG_FS_WARN);
+
+    seq_printf(m, "Get dump from /proc/kmsg or /sys/kernel/debug/gc/galcore_trace\n");
+
+    if (kernel->hardware->powerManagement == gcvFALSE)
+    {
+        _DumpState(kernel);
+    }
+
+    return 0;
+}
+
+static gcsINFO InfoList[] =
+{
+    {"info", gc_info_show},
+    {"clients", gc_clients_show},
+    {"meminfo", gc_meminfo_show},
+    {"idle", gc_idle_show},
+    {"database", gc_db_show},
+    {"version", gc_version_show},
+    {"dump_trigger", gc_dump_trigger_show},
+};
+
+static gceSTATUS
+_DebugfsInit(
+    IN gckGALDEVICE Device
+    )
+{
+    gceSTATUS status;
+
+    gckDEBUGFS_DIR dir = &Device->debugfsDir;
+
+    gcmkONERROR(gckDEBUGFS_DIR_Init(dir, gcvNULL, "gc"));
+
+    gcmkONERROR(gckDEBUGFS_DIR_CreateFiles(dir, InfoList, gcmCOUNTOF(InfoList), Device));
+
+    return gcvSTATUS_OK;
+
+OnError:
+    return status;
+}
+
+static void
+_DebugfsCleanup(
+    IN gckGALDEVICE Device
+    )
+{
+    gckDEBUGFS_DIR dir = &Device->debugfsDir;
+
+    if (Device->debugfsDir.root)
+    {
+        gcmkVERIFY_OK(gckDEBUGFS_DIR_RemoveFiles(dir, InfoList, gcmCOUNTOF(InfoList)));
+
+        gckDEBUGFS_DIR_Deinit(dir);
+    }
+}
+
+
+/******************************************************************************\
+*************************** Memory Allocation Wrappers *************************
+\******************************************************************************/
+
+static gceSTATUS
+_AllocateMemory(
+    IN gckGALDEVICE Device,
+    IN gctSIZE_T Bytes,
+    OUT gctPOINTER *Logical,
+    OUT gctPHYS_ADDR *Physical,
+    OUT gctUINT32 *PhysAddr
+    )
+{
+    gceSTATUS status;
+
+    gcmkHEADER_ARG("Device=0x%x Bytes=%lu", Device, Bytes);
+
+    gcmkVERIFY_ARGUMENT(Device != NULL);
+    gcmkVERIFY_ARGUMENT(Logical != NULL);
+    gcmkVERIFY_ARGUMENT(Physical != NULL);
+    gcmkVERIFY_ARGUMENT(PhysAddr != NULL);
+
+    gcmkONERROR(gckOS_AllocateContiguous(
+        Device->os, gcvFALSE, &Bytes, Physical, Logical
+        ));
+
+    *PhysAddr = ((PLINUX_MDL)*Physical)->dmaHandle;
+
+    /* Success. */
+    gcmkFOOTER_ARG(
+        "*Logical=0x%x *Physical=0x%x *PhysAddr=0x%08x",
+        *Logical, *Physical, *PhysAddr
+        );
+
+    return gcvSTATUS_OK;
+
+OnError:
+    gcmkFOOTER();
+    return status;
+}
+
+static gceSTATUS
+_FreeMemory(
+    IN gckGALDEVICE Device,
+    IN gctPOINTER Logical,
+    IN gctPHYS_ADDR Physical)
+{
+    gceSTATUS status;
+
+    gcmkHEADER_ARG("Device=0x%x Logical=0x%x Physical=0x%x",
+                   Device, Logical, Physical);
+
+    gcmkVERIFY_ARGUMENT(Device != NULL);
+
+    status = gckOS_FreeContiguous(
+        Device->os, Physical, Logical,
+        ((PLINUX_MDL) Physical)->numPages * PAGE_SIZE
+        );
+
+    gcmkFOOTER();
+    return status;
+}
+
+
+
+/******************************************************************************\
+******************************* Interrupt Handler ******************************
+\******************************************************************************/
+#if gcdMULTI_GPU_AFFINITY
+static irqreturn_t isrRoutine3D0(int irq, void *ctxt)
+{
+    gceSTATUS status;
+    gckGALDEVICE device;
+
+    device = (gckGALDEVICE) ctxt;
+
+    /* Call kernel interrupt notification. */
+    status = gckKERNEL_Notify(device->kernels[gcvCORE_MAJOR], gcvNOTIFY_INTERRUPT, gcvTRUE);
+
+    if (gcmIS_SUCCESS(status))
+    {
+        up(&device->semas[gcvCORE_MAJOR]);
+
+        return IRQ_HANDLED;
+    }
+
+    return IRQ_NONE;
+}
+
+static int threadRoutine3D0(void *ctxt)
+{
+    gckGALDEVICE device = (gckGALDEVICE) ctxt;
+
+    gcmkTRACE_ZONE(gcvLEVEL_INFO, gcvZONE_DRIVER,
+                   "Starting isr Thread with extension=%p",
+                   device);
+
+    for (;;)
+    {
+        static int down;
+
+        down = down_interruptible(&device->semas[gcvCORE_MAJOR]);
+        if (down); /*To make gcc 4.6 happye*/
+
+        if (device->killThread == gcvTRUE)
+        {
+            /* The daemon exits. */
+            while (!kthread_should_stop())
+            {
+                gckOS_Delay(device->os, 1);
+            }
+
+            return 0;
+        }
+
+        gckKERNEL_Notify(device->kernels[gcvCORE_MAJOR],
+                         gcvNOTIFY_INTERRUPT,
+                         gcvFALSE);
+    }
+}
+
+static irqreturn_t isrRoutine3D1(int irq, void *ctxt)
+{
+    gceSTATUS status;
+    gckGALDEVICE device;
+
+    device = (gckGALDEVICE) ctxt;
+
+    /* Call kernel interrupt notification. */
+    status = gckKERNEL_Notify(device->kernels[gcvCORE_OCL], gcvNOTIFY_INTERRUPT, gcvTRUE);
+
+    if (gcmIS_SUCCESS(status))
+    {
+        up(&device->semas[gcvCORE_OCL]);
+
+        return IRQ_HANDLED;
+    }
+
+    return IRQ_NONE;
+}
+
+static int threadRoutine3D1(void *ctxt)
+{
+    gckGALDEVICE device = (gckGALDEVICE) ctxt;
+
+    gcmkTRACE_ZONE(gcvLEVEL_INFO, gcvZONE_DRIVER,
+                   "Starting isr Thread with extension=%p",
+                   device);
+
+    for (;;)
+    {
+        static int down;
+
+        down = down_interruptible(&device->semas[gcvCORE_OCL]);
+        if (down); /*To make gcc 4.6 happye*/
+
+        if (device->killThread == gcvTRUE)
+        {
+            /* The daemon exits. */
+            while (!kthread_should_stop())
+            {
+                gckOS_Delay(device->os, 1);
+            }
+
+            return 0;
+        }
+
+        gckKERNEL_Notify(device->kernels[gcvCORE_OCL],
+                         gcvNOTIFY_INTERRUPT,
+                         gcvFALSE);
+    }
+}
+#else
+static irqreturn_t isrRoutine(int irq, void *ctxt)
+{
+    gceSTATUS status;
+    gckGALDEVICE device;
+
+    device = (gckGALDEVICE) ctxt;
+
+    /* Call kernel interrupt notification. */
+    status = gckKERNEL_Notify(device->kernels[gcvCORE_MAJOR], gcvNOTIFY_INTERRUPT, gcvTRUE);
+
+    if (gcmIS_SUCCESS(status))
+    {
+        up(&device->semas[gcvCORE_MAJOR]);
+
+        return IRQ_HANDLED;
+    }
+
+    return IRQ_NONE;
+}
+
+static int threadRoutine(void *ctxt)
+{
+    gckGALDEVICE device = (gckGALDEVICE) ctxt;
+
+    gcmkTRACE_ZONE(gcvLEVEL_INFO, gcvZONE_DRIVER,
+                   "Starting isr Thread with extension=%p",
+                   device);
+
+    for (;;)
+    {
+        static int down;
+
+        down = down_interruptible(&device->semas[gcvCORE_MAJOR]);
+        if (down); /*To make gcc 4.6 happye*/
+
+        if (device->killThread == gcvTRUE)
+        {
+            /* The daemon exits. */
+            while (!kthread_should_stop())
+            {
+                gckOS_Delay(device->os, 1);
+            }
+
+            return 0;
+        }
+
+        gckKERNEL_Notify(device->kernels[gcvCORE_MAJOR],
+                         gcvNOTIFY_INTERRUPT,
+                         gcvFALSE);
+    }
+}
+#endif
+
+static irqreturn_t isrRoutine2D(int irq, void *ctxt)
+{
+    gceSTATUS status;
+    gckGALDEVICE device;
+
+    device = (gckGALDEVICE) ctxt;
+
+    /* Call kernel interrupt notification. */
+    status = gckKERNEL_Notify(device->kernels[gcvCORE_2D],
+                              gcvNOTIFY_INTERRUPT,
+                              gcvTRUE);
+    if (gcmIS_SUCCESS(status))
+    {
+        up(&device->semas[gcvCORE_2D]);
+
+        return IRQ_HANDLED;
+    }
+
+    return IRQ_NONE;
+}
+
+static int threadRoutine2D(void *ctxt)
+{
+    gckGALDEVICE device = (gckGALDEVICE) ctxt;
+
+    gcmkTRACE_ZONE(gcvLEVEL_INFO, gcvZONE_DRIVER,
+                   "Starting isr Thread with extension=%p",
+                   device);
+
+    for (;;)
+    {
+        static int down;
+
+        down = down_interruptible(&device->semas[gcvCORE_2D]);
+        if (down); /*To make gcc 4.6 happye*/
+
+        if (device->killThread == gcvTRUE)
+        {
+            /* The daemon exits. */
+            while (!kthread_should_stop())
+            {
+                gckOS_Delay(device->os, 1);
+            }
+
+            return 0;
+        }
+        gckKERNEL_Notify(device->kernels[gcvCORE_2D],
+                         gcvNOTIFY_INTERRUPT,
+                         gcvFALSE);
+    }
+}
+
+static irqreturn_t isrRoutineVG(int irq, void *ctxt)
+{
+    return IRQ_NONE;
+}
+
+static int threadRoutineVG(void *ctxt)
+{
+    gckGALDEVICE device = (gckGALDEVICE) ctxt;
+
+    gcmkTRACE_ZONE(gcvLEVEL_INFO, gcvZONE_DRIVER,
+                   "Starting isr Thread with extension=%p",
+                   device);
+
+    for (;;)
+    {
+        static int down;
+
+        down = down_interruptible(&device->semas[gcvCORE_VG]);
+        if (down); /*To make gcc 4.6 happye*/
+
+        if (device->killThread == gcvTRUE)
+        {
+            /* The daemon exits. */
+            while (!kthread_should_stop())
+            {
+                gckOS_Delay(device->os, 1);
+            }
+
+            return 0;
+        }
+        gckKERNEL_Notify(device->kernels[gcvCORE_VG],
+                         gcvNOTIFY_INTERRUPT,
+                         gcvFALSE);
+    }
+}
+
+/******************************************************************************\
+******************************* gckGALDEVICE Code ******************************
+\******************************************************************************/
+
+/*******************************************************************************
+**
+**  gckGALDEVICE_Construct
+**
+**  Constructor.
+**
+**  INPUT:
+**
+**  OUTPUT:
+**
+**      gckGALDEVICE * Device
+**          Pointer to a variable receiving the gckGALDEVICE object pointer on
+**          success.
+*/
+gceSTATUS
+gckGALDEVICE_Construct(
+#if gcdMULTI_GPU || gcdMULTI_GPU_AFFINITY
+    IN gctINT IrqLine3D0,
+    IN gctUINT32 RegisterMemBase3D0,
+    IN gctSIZE_T RegisterMemSize3D0,
+    IN gctINT IrqLine3D1,
+    IN gctUINT32 RegisterMemBase3D1,
+    IN gctSIZE_T RegisterMemSize3D1,
+#else
+    IN gctINT IrqLine,
+    IN gctUINT32 RegisterMemBase,
+    IN gctSIZE_T RegisterMemSize,
+#endif
+    IN gctINT IrqLine2D,
+    IN gctUINT32 RegisterMemBase2D,
+    IN gctSIZE_T RegisterMemSize2D,
+    IN gctINT IrqLineVG,
+    IN gctUINT32 RegisterMemBaseVG,
+    IN gctSIZE_T RegisterMemSizeVG,
+    IN gctUINT32 ContiguousBase,
+    IN gctSIZE_T ContiguousSize,
+    IN gctSIZE_T BankSize,
+    IN gctINT FastClear,
+    IN gctINT Compression,
+    IN gctUINT32 PhysBaseAddr,
+    IN gctUINT32 PhysSize,
+    IN gctINT Signal,
+    IN gctUINT LogFileSize,
+    IN gctINT PowerManagement,
+    IN gctINT GpuProfiler,
+    IN gcsDEVICE_CONSTRUCT_ARGS * Args,
+    OUT gckGALDEVICE *Device
+    )
+{
+    gctUINT32 internalBaseAddress = 0, internalAlignment = 0;
+    gctUINT32 externalBaseAddress = 0, externalAlignment = 0;
+    gctUINT32 horizontalTileSize, verticalTileSize;
+    struct resource* mem_region;
+    gctUINT32 physAddr;
+    gctUINT32 physical;
+    gckGALDEVICE device;
+    gceSTATUS status;
+    gctINT32 i;
+    gceHARDWARE_TYPE type;
+    gckDB sharedDB = gcvNULL;
+    gckKERNEL kernel = gcvNULL;
+
+#if gcdMULTI_GPU || gcdMULTI_GPU_AFFINITY
+    gcmkHEADER_ARG("IrqLine3D0=%d RegisterMemBase3D0=0x%08x RegisterMemSize3D0=%u "
+                   "IrqLine2D=%d RegisterMemBase2D=0x%08x RegisterMemSize2D=%u "
+                   "IrqLineVG=%d RegisterMemBaseVG=0x%08x RegisterMemSizeVG=%u "
+                   "ContiguousBase=0x%08x ContiguousSize=%lu BankSize=%lu "
+                   "FastClear=%d Compression=%d PhysBaseAddr=0x%x PhysSize=%d Signal=%d",
+                   IrqLine3D0, RegisterMemBase3D0, RegisterMemSize3D0,
+                   IrqLine2D, RegisterMemBase2D, RegisterMemSize2D,
+                   IrqLineVG, RegisterMemBaseVG, RegisterMemSizeVG,
+                   ContiguousBase, ContiguousSize, BankSize, FastClear, Compression,
+                   PhysBaseAddr, PhysSize, Signal);
+#else
+    gcmkHEADER_ARG("IrqLine=%d RegisterMemBase=0x%08x RegisterMemSize=%u "
+                   "IrqLine2D=%d RegisterMemBase2D=0x%08x RegisterMemSize2D=%u "
+                   "IrqLineVG=%d RegisterMemBaseVG=0x%08x RegisterMemSizeVG=%u "
+                   "ContiguousBase=0x%08x ContiguousSize=%lu BankSize=%lu "
+                   "FastClear=%d Compression=%d PhysBaseAddr=0x%x PhysSize=%d Signal=%d",
+                   IrqLine, RegisterMemBase, RegisterMemSize,
+                   IrqLine2D, RegisterMemBase2D, RegisterMemSize2D,
+                   IrqLineVG, RegisterMemBaseVG, RegisterMemSizeVG,
+                   ContiguousBase, ContiguousSize, BankSize, FastClear, Compression,
+                   PhysBaseAddr, PhysSize, Signal);
+#endif
+
+#if gcdDISABLE_CORES_2D3D
+    IrqLine = -1;
+    IrqLine2D = -1;
+#endif
+
+    /* Allocate device structure. */
+    device = kmalloc(sizeof(struct _gckGALDEVICE), GFP_KERNEL | __GFP_NOWARN);
+
+    if (!device)
+    {
+        gcmkONERROR(gcvSTATUS_OUT_OF_MEMORY);
+    }
+
+    memset(device, 0, sizeof(struct _gckGALDEVICE));
+
+    device->dbgNode = gcvNULL;
+
+    device->platform = Args->platform;
+
+    /* set up the contiguous memory */
+    device->contiguousSize = ContiguousSize;
+
+    gcmkONERROR(_DebugfsInit(device));
+
+    if (gckDEBUGFS_CreateNode(
+            device, LogFileSize, device->debugfsDir.root ,DEBUG_FILE, &(device->dbgNode)))
+    {
+        gcmkTRACE_ZONE(
+            gcvLEVEL_ERROR, gcvZONE_DRIVER,
+            "%s(%d): Failed to create  the debug file system  %s/%s \n",
+            __FUNCTION__, __LINE__,
+            PARENT_FILE, DEBUG_FILE
+        );
+    }
+    else if (LogFileSize)
+    {
+        gckDEBUGFS_SetCurrentNode(device->dbgNode);
+    }
+
+#if gcdMULTI_GPU_AFFINITY
+    if (IrqLine3D0 != -1)
+    {
+        device->requestedRegisterMemBases[gcvCORE_MAJOR] = RegisterMemBase3D0;
+        device->requestedRegisterMemSizes[gcvCORE_MAJOR] = RegisterMemSize3D0;
+    }
+
+    if (IrqLine3D1 != -1)
+    {
+        device->requestedRegisterMemBases[gcvCORE_OCL] = RegisterMemBase3D1;
+        device->requestedRegisterMemSizes[gcvCORE_OCL] = RegisterMemSize3D1;
+    }
+#else
+    if (IrqLine != -1)
+    {
+        device->requestedRegisterMemBases[gcvCORE_MAJOR] = RegisterMemBase;
+        device->requestedRegisterMemSizes[gcvCORE_MAJOR] = RegisterMemSize;
+    }
+#endif
+
+    if (IrqLine2D != -1)
+    {
+        device->requestedRegisterMemBases[gcvCORE_2D] = RegisterMemBase2D;
+        device->requestedRegisterMemSizes[gcvCORE_2D] = RegisterMemSize2D;
+    }
+
+    if (IrqLineVG != -1)
+    {
+        device->requestedRegisterMemBases[gcvCORE_VG] = RegisterMemBaseVG;
+        device->requestedRegisterMemSizes[gcvCORE_VG] = RegisterMemSizeVG;
+    }
+#if gcdENABLE_DEC_COMPRESSION
+    {
+        device->requestedRegisterMemBases[gcvCORE_DEC] = Args->registerMemBaseDEC300;
+        device->requestedRegisterMemSizes[gcvCORE_DEC] = Args->registerMemSizeDEC300;
+    }
+#endif
+
+
+    device->requestedContiguousBase  = 0;
+    device->requestedContiguousSize  = 0;
+
+    for (i = 0; i < gcdMAX_GPU_COUNT; i++)
+    {
+        {
+            physical = device->requestedRegisterMemBases[i];
+
+            /* Set up register memory region. */
+            if (physical != 0)
+            {
+
+                if ( Args->registerMemMapped )
+                {
+                    device->registerBases[i] = Args->registerMemAddress;
+                    device->requestedRegisterMemBases[i] = 0;
+
+                } else {
+
+                    mem_region = request_mem_region(physical,
+                            device->requestedRegisterMemSizes[i],
+                            "galcore register region");
+
+                    if (mem_region == gcvNULL)
+                    {
+                        gcmkTRACE_ZONE(
+                                gcvLEVEL_ERROR, gcvZONE_DRIVER,
+                                "%s(%d): Failed to claim %lu bytes @ 0x%08X\n",
+                                __FUNCTION__, __LINE__,
+                                physical, device->requestedRegisterMemSizes[i]
+                         );
+
+                    gcmkONERROR(gcvSTATUS_OUT_OF_RESOURCES);
+                    }
+
+                    device->registerBases[i] = (gctPOINTER) ioremap_nocache(
+                            physical, device->requestedRegisterMemSizes[i]);
+
+                    if (device->registerBases[i] == gcvNULL)
+                    {
+                        gcmkTRACE_ZONE(
+                                gcvLEVEL_ERROR, gcvZONE_DRIVER,
+                                "%s(%d): Unable to map %ld bytes @ 0x%08X\n",
+                                __FUNCTION__, __LINE__,
+                                physical, device->requestedRegisterMemSizes[i]
+                        );
+
+                        gcmkONERROR(gcvSTATUS_OUT_OF_RESOURCES);
+                    }
+                }
+
+                physical += device->requestedRegisterMemSizes[i];
+
+            }
+        }
+    }
+
+    /* Set the base address */
+    device->baseAddress = device->physBase = PhysBaseAddr;
+    device->physSize = PhysSize;
+    device->mmu      = Args->mmu;
+
+    /* Construct the gckOS object. */
+    gcmkONERROR(gckOS_Construct(device, &device->os));
+
+#if gcdMULTI_GPU || gcdMULTI_GPU_AFFINITY
+    if (IrqLine3D0 != -1)
+#else
+    if (IrqLine != -1)
+#endif
+    {
+        /* Construct the gckKERNEL object. */
+        gcmkONERROR(gckKERNEL_Construct(
+            device->os, gcvCORE_MAJOR, device,
+            gcvNULL, &device->kernels[gcvCORE_MAJOR]));
+
+        sharedDB = device->kernels[gcvCORE_MAJOR]->db;
+
+        /* Initialize core mapping */
+        for (i = 0; i < 8; i++)
+        {
+            device->coreMapping[i] = gcvCORE_MAJOR;
+        }
+
+        /* Setup the ISR manager. */
+        gcmkONERROR(gckHARDWARE_SetIsrManager(
+            device->kernels[gcvCORE_MAJOR]->hardware,
+            (gctISRMANAGERFUNC) gckGALDEVICE_Setup_ISR,
+            (gctISRMANAGERFUNC) gckGALDEVICE_Release_ISR,
+            device
+            ));
+
+        gcmkONERROR(gckHARDWARE_SetFastClear(
+            device->kernels[gcvCORE_MAJOR]->hardware, FastClear, Compression
+            ));
+
+        gcmkONERROR(gckHARDWARE_SetPowerManagement(
+            device->kernels[gcvCORE_MAJOR]->hardware, PowerManagement
+            ));
+
+#if gcdENABLE_FSCALE_VAL_ADJUST
+        gcmkONERROR(gckHARDWARE_SetMinFscaleValue(
+            device->kernels[gcvCORE_MAJOR]->hardware, Args->gpu3DMinClock
+            ));
+#endif
+
+        gcmkONERROR(gckHARDWARE_SetGpuProfiler(
+            device->kernels[gcvCORE_MAJOR]->hardware, GpuProfiler
+            ));
+
+        gcmkVERIFY_OK(gckKERNEL_SetRecovery(
+            device->kernels[gcvCORE_MAJOR], Args->recovery, Args->stuckDump
+            ));
+
+#if COMMAND_PROCESSOR_VERSION == 1
+        /* Start the command queue. */
+        gcmkONERROR(gckCOMMAND_Start(device->kernels[gcvCORE_MAJOR]->command));
+#endif
+    }
+    else
+    {
+        device->kernels[gcvCORE_MAJOR] = gcvNULL;
+    }
+
+#if gcdMULTI_GPU_AFFINITY
+    if (IrqLine3D1 != -1)
+    {
+        /* Construct the gckKERNEL object. */
+        gcmkONERROR(gckKERNEL_Construct(
+            device->os, gcvCORE_OCL, device,
+            gcvNULL, &device->kernels[gcvCORE_OCL]));
+
+        if (sharedDB == gcvNULL) sharedDB = device->kernels[gcvCORE_OCL]->db;
+
+        /* Initialize core mapping */
+        if (device->kernels[gcvCORE_MAJOR] == gcvNULL)
+        {
+            for (i = 0; i < 8; i++)
+            {
+                device->coreMapping[i] = gcvCORE_OCL;
+            }
+        }
+        else
+        {
+            device->coreMapping[gcvHARDWARE_OCL] = gcvCORE_OCL;
+        }
+
+        /* Setup the ISR manager. */
+        gcmkONERROR(gckHARDWARE_SetIsrManager(
+            device->kernels[gcvCORE_OCL]->hardware,
+            (gctISRMANAGERFUNC) gckGALDEVICE_Setup_ISR,
+            (gctISRMANAGERFUNC) gckGALDEVICE_Release_ISR,
+            device
+            ));
+
+        gcmkONERROR(gckHARDWARE_SetFastClear(
+            device->kernels[gcvCORE_OCL]->hardware, FastClear, Compression
+            ));
+
+#if gcdENABLE_FSCALE_VAL_ADJUST
+        gcmkONERROR(gckHARDWARE_SetMinFscaleValue(
+            device->kernels[gcvCORE_OCL]->hardware, Args->gpu3DMinClock
+            ));
+#endif
+
+        gcmkONERROR(gckHARDWARE_SetPowerManagement(
+            device->kernels[gcvCORE_OCL]->hardware, PowerManagement
+            ));
+
+#if COMMAND_PROCESSOR_VERSION == 1
+        /* Start the command queue. */
+        gcmkONERROR(gckCOMMAND_Start(device->kernels[gcvCORE_OCL]->command));
+#endif
+    }
+    else
+    {
+        device->kernels[gcvCORE_OCL] = gcvNULL;
+    }
+#endif
+
+    if (IrqLine2D != -1)
+    {
+        gcmkONERROR(gckKERNEL_Construct(
+            device->os, gcvCORE_2D, device,
+            sharedDB, &device->kernels[gcvCORE_2D]));
+
+        if (sharedDB == gcvNULL) sharedDB = device->kernels[gcvCORE_2D]->db;
+
+        /* Verify the hardware type */
+        gcmkONERROR(gckHARDWARE_GetType(device->kernels[gcvCORE_2D]->hardware, &type));
+
+        if (type != gcvHARDWARE_2D)
+        {
+            gcmkTRACE_ZONE(
+                gcvLEVEL_ERROR, gcvZONE_DRIVER,
+                "%s(%d): Unexpected hardware type: %d\n",
+                __FUNCTION__, __LINE__,
+                type
+                );
+
+            gcmkONERROR(gcvSTATUS_INVALID_ARGUMENT);
+        }
+
+        /* Initialize core mapping */
+        if (device->kernels[gcvCORE_MAJOR] == gcvNULL
+#if gcdMULTI_GPU_AFFINITY
+            && device->kernels[gcvCORE_OCL] == gcvNULL
+#endif
+            )
+        {
+            for (i = 0; i < 8; i++)
+            {
+                device->coreMapping[i] = gcvCORE_2D;
+            }
+        }
+        else
+        {
+            device->coreMapping[gcvHARDWARE_2D] = gcvCORE_2D;
+        }
+
+        /* Setup the ISR manager. */
+        gcmkONERROR(gckHARDWARE_SetIsrManager(
+            device->kernels[gcvCORE_2D]->hardware,
+            (gctISRMANAGERFUNC) gckGALDEVICE_Setup_ISR_2D,
+            (gctISRMANAGERFUNC) gckGALDEVICE_Release_ISR_2D,
+            device
+            ));
+
+        gcmkONERROR(gckHARDWARE_SetPowerManagement(
+            device->kernels[gcvCORE_2D]->hardware, PowerManagement
+            ));
+
+#if gcdENABLE_FSCALE_VAL_ADJUST
+        gcmkONERROR(gckHARDWARE_SetMinFscaleValue(
+            device->kernels[gcvCORE_2D]->hardware, 1
+            ));
+#endif
+
+        gcmkVERIFY_OK(gckKERNEL_SetRecovery(
+            device->kernels[gcvCORE_2D], Args->recovery, Args->stuckDump
+            ));
+
+#if COMMAND_PROCESSOR_VERSION == 1
+        /* Start the command queue. */
+        gcmkONERROR(gckCOMMAND_Start(device->kernels[gcvCORE_2D]->command));
+#endif
+    }
+    else
+    {
+        device->kernels[gcvCORE_2D] = gcvNULL;
+    }
+
+    if (IrqLineVG != -1)
+    {
+    }
+    else
+    {
+        device->kernels[gcvCORE_VG] = gcvNULL;
+    }
+
+    /* Initialize the ISR. */
+#if gcdMULTI_GPU_AFFINITY
+    device->irqLines[gcvCORE_MAJOR] = IrqLine3D0;
+    device->irqLines[gcvCORE_OCL]   = IrqLine3D1;
+#else
+    device->irqLines[gcvCORE_MAJOR] = IrqLine;
+#endif
+    device->irqLines[gcvCORE_2D] = IrqLine2D;
+    device->irqLines[gcvCORE_VG] = IrqLineVG;
+
+    /* Initialize the kernel thread semaphores. */
+    for (i = 0; i < gcdMAX_GPU_COUNT; i++)
+    {
+        {
+            if (device->irqLines[i] != -1) sema_init(&device->semas[i], 0);
+        }
+    }
+
+    device->signal = Signal;
+
+    for (i = 0; i < gcdMAX_GPU_COUNT; i++)
+    {
+        if (device->kernels[i] != gcvNULL) break;
+    }
+
+    if (i == gcdMAX_GPU_COUNT)
+    {
+        gcmkONERROR(gcvSTATUS_INVALID_ARGUMENT);
+    }
+
+    {
+        /* Query the ceiling of the system memory. */
+        gcmkONERROR(gckHARDWARE_QuerySystemMemory(
+                device->kernels[i]->hardware,
+                &device->systemMemorySize,
+                &device->systemMemoryBaseAddress
+                ));
+
+            /* query the amount of video memory */
+        gcmkONERROR(gckHARDWARE_QueryMemory(
+            device->kernels[i]->hardware,
+            &device->internalSize, &internalBaseAddress, &internalAlignment,
+            &device->externalSize, &externalBaseAddress, &externalAlignment,
+            &horizontalTileSize, &verticalTileSize
+            ));
+    }
+
+
+    /* Grab the first availiable kernel */
+    for (i = 0; i < gcdMAX_GPU_COUNT; i++)
+    {
+        {
+            if (device->irqLines[i] != -1)
+            {
+                kernel = device->kernels[i];
+                break;
+            }
+        }
+    }
+
+    /* Set up the internal memory region. */
+    if (device->internalSize > 0)
+    {
+        status = gckVIDMEM_Construct(
+            device->os,
+            internalBaseAddress, device->internalSize, internalAlignment,
+            0, &device->internalVidMem
+            );
+
+        if (gcmIS_ERROR(status))
+        {
+            /* Error, disable internal heap. */
+            device->internalSize = 0;
+        }
+        else
+        {
+            /* Map internal memory. */
+            device->internalLogical
+                = (gctPOINTER) ioremap_nocache(physical, device->internalSize);
+
+            if (device->internalLogical == gcvNULL)
+            {
+                gcmkONERROR(gcvSTATUS_OUT_OF_RESOURCES);
+            }
+
+            device->internalPhysical = (gctPHYS_ADDR)(gctUINTPTR_T) physical;
+            device->internalPhysicalName = gcmPTR_TO_NAME(device->internalPhysical);
+            physical += device->internalSize;
+        }
+    }
+
+    if (device->externalSize > 0)
+    {
+        /* create the external memory heap */
+        status = gckVIDMEM_Construct(
+            device->os,
+            externalBaseAddress, device->externalSize, externalAlignment,
+            0, &device->externalVidMem
+            );
+
+        if (gcmIS_ERROR(status))
+        {
+            /* Error, disable internal heap. */
+            device->externalSize = 0;
+        }
+        else
+        {
+            /* Map external memory. */
+            device->externalLogical
+                = (gctPOINTER) ioremap_nocache(physical, device->externalSize);
+
+            if (device->externalLogical == gcvNULL)
+            {
+                gcmkONERROR(gcvSTATUS_OUT_OF_RESOURCES);
+            }
+
+            device->externalPhysical = (gctPHYS_ADDR)(gctUINTPTR_T) physical;
+            device->externalPhysicalName = gcmPTR_TO_NAME(device->externalPhysical);
+            physical += device->externalSize;
+        }
+    }
+
+    /* set up the contiguous memory */
+    device->contiguousSize = ContiguousSize;
+
+    if (ContiguousSize > 0)
+    {
+        if (ContiguousBase == 0)
+        {
+            while (device->contiguousSize > 0)
+            {
+                /* Allocate contiguous memory. */
+                status = _AllocateMemory(
+                    device,
+                    device->contiguousSize,
+                    &device->contiguousBase,
+                    &device->contiguousPhysical,
+                    &physAddr
+                    );
+
+                if (gcmIS_SUCCESS(status))
+                {
+                    device->contiguousPhysicalName = gcmPTR_TO_NAME(device->contiguousPhysical);
+                    status = gckVIDMEM_Construct(
+                        device->os,
+                        physAddr | device->systemMemoryBaseAddress,
+                        device->contiguousSize,
+                        64,
+                        BankSize,
+                        &device->contiguousVidMem
+                        );
+
+                    if (gcmIS_SUCCESS(status))
+                    {
+                        break;
+                    }
+
+                    gcmkONERROR(_FreeMemory(
+                        device,
+                        device->contiguousBase,
+                        device->contiguousPhysical
+                        ));
+
+                    gcmRELEASE_NAME(device->contiguousPhysicalName);
+                    device->contiguousBase     = gcvNULL;
+                    device->contiguousPhysical = gcvNULL;
+                }
+
+                if (device->contiguousSize <= (4 << 20))
+                {
+                    device->contiguousSize = 0;
+                }
+                else
+                {
+                    device->contiguousSize -= (4 << 20);
+                }
+            }
+        }
+        else
+        {
+            /* Create the contiguous memory heap. */
+            status = gckVIDMEM_Construct(
+                device->os,
+                ContiguousBase | device->systemMemoryBaseAddress,
+                ContiguousSize,
+                64, BankSize,
+                &device->contiguousVidMem
+                );
+
+            if (gcmIS_ERROR(status))
+            {
+                /* Error, disable contiguous memory pool. */
+                device->contiguousVidMem = gcvNULL;
+                device->contiguousSize   = 0;
+            }
+            else
+            {
+                if (Args->contiguousRequested == gcvFALSE)
+                {
+                    mem_region = request_mem_region(
+                        ContiguousBase, ContiguousSize, "galcore managed memory"
+                        );
+
+                    if (mem_region == gcvNULL)
+                    {
+                        gcmkTRACE_ZONE(
+                            gcvLEVEL_ERROR, gcvZONE_DRIVER,
+                            "%s(%d): Failed to claim %ld bytes @ 0x%08X\n",
+                            __FUNCTION__, __LINE__,
+                            ContiguousSize, ContiguousBase
+                            );
+
+                        gcmkONERROR(gcvSTATUS_OUT_OF_RESOURCES);
+                    }
+                }
+
+                device->requestedContiguousBase  = ContiguousBase;
+                device->requestedContiguousSize  = ContiguousSize;
+                device->contiguousRequested      = Args->contiguousRequested;
+
+                device->contiguousPhysical = gcvNULL;
+                device->contiguousPhysicalName = 0;
+                device->contiguousSize     = ContiguousSize;
+                device->contiguousMapped   = gcvTRUE;
+            }
+        }
+    }
+
+    /* Return pointer to the device. */
+    *Device = device;
+
+    gcmkFOOTER_ARG("*Device=0x%x", * Device);
+    return gcvSTATUS_OK;
+
+OnError:
+    /* Roll back. */
+    gcmkVERIFY_OK(gckGALDEVICE_Destroy(device));
+
+    gcmkFOOTER();
+    return status;
+}
+
+/*******************************************************************************
+**
+**  gckGALDEVICE_Destroy
+**
+**  Class destructor.
+**
+**  INPUT:
+**
+**      Nothing.
+**
+**  OUTPUT:
+**
+**      Nothing.
+**
+**  RETURNS:
+**
+**      Nothing.
+*/
+gceSTATUS
+gckGALDEVICE_Destroy(
+    gckGALDEVICE Device)
+{
+    gctINT i;
+    gckKERNEL kernel = gcvNULL;
+
+    gcmkHEADER_ARG("Device=0x%x", Device);
+
+    if (Device != gcvNULL)
+    {
+        /* Grab the first availiable kernel */
+        for (i = 0; i < gcdMAX_GPU_COUNT; i++)
+        {
+            {
+                if (Device->irqLines[i] != -1)
+                {
+                    kernel = Device->kernels[i];
+                    break;
+                }
+            }
+        }
+
+        if (Device->internalPhysicalName != 0)
+        {
+            gcmRELEASE_NAME(Device->internalPhysicalName);
+            Device->internalPhysicalName = 0;
+        }
+        if (Device->externalPhysicalName != 0)
+        {
+            gcmRELEASE_NAME(Device->externalPhysicalName);
+            Device->externalPhysicalName = 0;
+        }
+        if (Device->contiguousPhysicalName != 0)
+        {
+            gcmRELEASE_NAME(Device->contiguousPhysicalName);
+            Device->contiguousPhysicalName = 0;
+        }
+
+
+        for (i = 0; i < gcdMAX_GPU_COUNT; i++)
+        {
+            if (Device->kernels[i] != gcvNULL)
+            {
+                /* Destroy the gckKERNEL object. */
+                gcmkVERIFY_OK(gckKERNEL_Destroy(Device->kernels[i]));
+                Device->kernels[i] = gcvNULL;
+            }
+        }
+
+        if (Device->internalLogical != gcvNULL)
+        {
+            /* Unmap the internal memory. */
+            iounmap(Device->internalLogical);
+            Device->internalLogical = gcvNULL;
+        }
+
+        if (Device->internalVidMem != gcvNULL)
+        {
+            /* Destroy the internal heap. */
+            gcmkVERIFY_OK(gckVIDMEM_Destroy(Device->internalVidMem));
+            Device->internalVidMem = gcvNULL;
+        }
+
+        if (Device->externalLogical != gcvNULL)
+        {
+            /* Unmap the external memory. */
+            iounmap(Device->externalLogical);
+            Device->externalLogical = gcvNULL;
+        }
+
+        if (Device->externalVidMem != gcvNULL)
+        {
+            /* destroy the external heap */
+            gcmkVERIFY_OK(gckVIDMEM_Destroy(Device->externalVidMem));
+            Device->externalVidMem = gcvNULL;
+        }
+
+        if (Device->contiguousBase != gcvNULL)
+        {
+            if (Device->contiguousMapped == gcvFALSE)
+            {
+                gcmkVERIFY_OK(_FreeMemory(
+                    Device,
+                    Device->contiguousBase,
+                    Device->contiguousPhysical
+                    ));
+            }
+
+            Device->contiguousBase     = gcvNULL;
+            Device->contiguousPhysical = gcvNULL;
+        }
+
+        if (Device->requestedContiguousBase != 0
+         && Device->contiguousRequested == gcvFALSE
+        )
+        {
+            release_mem_region(Device->requestedContiguousBase, Device->requestedContiguousSize);
+            Device->requestedContiguousBase = 0;
+            Device->requestedContiguousSize = 0;
+        }
+
+        if (Device->contiguousVidMem != gcvNULL)
+        {
+            /* Destroy the contiguous heap. */
+            gcmkVERIFY_OK(gckVIDMEM_Destroy(Device->contiguousVidMem));
+            Device->contiguousVidMem = gcvNULL;
+        }
+
+        if (Device->dbgNode)
+        {
+            gckDEBUGFS_FreeNode(Device->dbgNode);
+
+            if(Device->dbgNode != gcvNULL)
+            {
+                kfree(Device->dbgNode);
+                Device->dbgNode = gcvNULL;
+            }
+        }
+
+        for (i = 0; i < gcdMAX_GPU_COUNT; i++)
+        {
+            {
+                if (Device->registerBases[i] != gcvNULL)
+                {
+                    /* Unmap register memory. */
+                    if (Device->requestedRegisterMemBases[i] != 0)
+                        iounmap(Device->registerBases[i]);
+
+                    if (Device->requestedRegisterMemBases[i] != 0)
+                    {
+                        release_mem_region(Device->requestedRegisterMemBases[i],
+                                Device->requestedRegisterMemSizes[i]);
+                    }
+
+                    Device->registerBases[i] = gcvNULL;
+                    Device->requestedRegisterMemBases[i] = 0;
+                    Device->requestedRegisterMemSizes[i] = 0;
+                }
+            }
+        }
+
+        /* Destroy the gckOS object. */
+        if (Device->os != gcvNULL)
+        {
+            gcmkVERIFY_OK(gckOS_Destroy(Device->os));
+            Device->os = gcvNULL;
+        }
+
+        _DebugfsCleanup(Device);
+
+        /* Free the device. */
+        kfree(Device);
+    }
+
+    gcmkFOOTER_NO();
+    return gcvSTATUS_OK;
+}
+
+/*******************************************************************************
+**
+**  gckGALDEVICE_Setup_ISR
+**
+**  Start the ISR routine.
+**
+**  INPUT:
+**
+**      gckGALDEVICE Device
+**          Pointer to an gckGALDEVICE object.
+**
+**  OUTPUT:
+**
+**      Nothing.
+**
+**  RETURNS:
+**
+**      gcvSTATUS_OK
+**          Setup successfully.
+**      gcvSTATUS_GENERIC_IO
+**          Setup failed.
+*/
+gceSTATUS
+gckGALDEVICE_Setup_ISR(
+    IN gckGALDEVICE Device
+    )
+{
+    gceSTATUS status;
+    gctINT ret = 0;
+
+    gcmkHEADER_ARG("Device=0x%x", Device);
+
+    gcmkVERIFY_ARGUMENT(Device != NULL);
+
+    if (Device->irqLines[gcvCORE_MAJOR] < 0)
+    {
+        gcmkONERROR(gcvSTATUS_GENERIC_IO);
+    }
+
+    /* Hook up the isr based on the irq line. */
+#ifdef FLAREON
+    gc500_handle.dev_name  = "galcore interrupt service";
+    gc500_handle.dev_id    = Device;
+    gc500_handle.handler   = isrRoutine;
+    gc500_handle.intr_gen  = GPIO_INTR_LEVEL_TRIGGER;
+    gc500_handle.intr_trig = GPIO_TRIG_HIGH_LEVEL;
+
+    ret = dove_gpio_request(
+        DOVE_GPIO0_7, &gc500_handle
+        );
+#else
+#if gcdMULTI_GPU_AFFINITY
+    ret = request_irq(
+        Device->irqLines[gcvCORE_MAJOR], isrRoutine3D0, IRQF_SHARED,
+        "galcore_3d_0", Device
+        );
+
+    if (ret != 0)
+    {
+        gcmkTRACE_ZONE(
+            gcvLEVEL_ERROR, gcvZONE_DRIVER,
+            "%s(%d): Could not register irq line %d (error=%d)\n",
+            __FUNCTION__, __LINE__,
+            Device->irqLines[gcvCORE_MAJOR], ret
+            );
+
+        gcmkONERROR(gcvSTATUS_GENERIC_IO);
+    }
+
+    /* Mark ISR as initialized. */
+    Device->isrInitializeds[gcvCORE_MAJOR] = gcvTRUE;
+
+    ret = request_irq(
+        Device->irqLines[gcvCORE_OCL], isrRoutine3D1, IRQF_SHARED,
+        "galcore_3d_1", Device
+        );
+
+    if (ret != 0)
+    {
+        gcmkTRACE_ZONE(
+            gcvLEVEL_ERROR, gcvZONE_DRIVER,
+            "%s(%d): Could not register irq line %d (error=%d)\n",
+            __FUNCTION__, __LINE__,
+            Device->irqLines[gcvCORE_OCL], ret
+            );
+
+        gcmkONERROR(gcvSTATUS_GENERIC_IO);
+    }
+
+    /* Mark ISR as initialized. */
+    Device->isrInitializeds[gcvCORE_OCL] = gcvTRUE;
+#else
+    ret = request_irq(
+        Device->irqLines[gcvCORE_MAJOR], isrRoutine, IRQF_SHARED,
+        "galcore interrupt service", Device
+        );
+
+    if (ret != 0)
+    {
+        gcmkTRACE_ZONE(
+            gcvLEVEL_ERROR, gcvZONE_DRIVER,
+            "%s(%d): Could not register irq line %d (error=%d)\n",
+            __FUNCTION__, __LINE__,
+            Device->irqLines[gcvCORE_MAJOR], ret
+            );
+
+        gcmkONERROR(gcvSTATUS_GENERIC_IO);
+    }
+
+    /* Mark ISR as initialized. */
+    Device->isrInitializeds[gcvCORE_MAJOR] = gcvTRUE;
+#endif
+#endif
+
+    gcmkFOOTER_NO();
+    return gcvSTATUS_OK;
+
+OnError:
+    gcmkFOOTER();
+    return status;
+}
+
+gceSTATUS
+gckGALDEVICE_Setup_ISR_2D(
+    IN gckGALDEVICE Device
+    )
+{
+    gceSTATUS status;
+    gctINT ret;
+
+    gcmkHEADER_ARG("Device=0x%x", Device);
+
+    gcmkVERIFY_ARGUMENT(Device != NULL);
+
+    if (Device->irqLines[gcvCORE_2D] < 0)
+    {
+        gcmkONERROR(gcvSTATUS_GENERIC_IO);
+    }
+
+    /* Hook up the isr based on the irq line. */
+#ifdef FLAREON
+    gc500_handle.dev_name  = "galcore interrupt service";
+    gc500_handle.dev_id    = Device;
+    gc500_handle.handler   = isrRoutine2D;
+    gc500_handle.intr_gen  = GPIO_INTR_LEVEL_TRIGGER;
+    gc500_handle.intr_trig = GPIO_TRIG_HIGH_LEVEL;
+
+    ret = dove_gpio_request(
+        DOVE_GPIO0_7, &gc500_handle
+        );
+#else
+    ret = request_irq(
+        Device->irqLines[gcvCORE_2D], isrRoutine2D, IRQF_SHARED,
+        "galcore interrupt service for 2D", Device
+        );
+#endif
+
+    if (ret != 0)
+    {
+        gcmkTRACE_ZONE(
+            gcvLEVEL_ERROR, gcvZONE_DRIVER,
+            "%s(%d): Could not register irq line %d (error=%d)\n",
+            __FUNCTION__, __LINE__,
+            Device->irqLines[gcvCORE_2D], ret
+            );
+
+        gcmkONERROR(gcvSTATUS_GENERIC_IO);
+    }
+
+    /* Mark ISR as initialized. */
+    Device->isrInitializeds[gcvCORE_2D] = gcvTRUE;
+
+    gcmkFOOTER_NO();
+    return gcvSTATUS_OK;
+
+OnError:
+    gcmkFOOTER();
+    return status;
+}
+
+gceSTATUS
+gckGALDEVICE_Setup_ISR_VG(
+    IN gckGALDEVICE Device
+    )
+{
+    gceSTATUS status;
+    gctINT ret;
+
+    gcmkHEADER_ARG("Device=0x%x", Device);
+
+    gcmkVERIFY_ARGUMENT(Device != NULL);
+
+    if (Device->irqLines[gcvCORE_VG] < 0)
+    {
+        gcmkONERROR(gcvSTATUS_GENERIC_IO);
+    }
+
+    /* Hook up the isr based on the irq line. */
+#ifdef FLAREON
+    gc500_handle.dev_name  = "galcore interrupt service";
+    gc500_handle.dev_id    = Device;
+    gc500_handle.handler   = isrRoutineVG;
+    gc500_handle.intr_gen  = GPIO_INTR_LEVEL_TRIGGER;
+    gc500_handle.intr_trig = GPIO_TRIG_HIGH_LEVEL;
+
+    ret = dove_gpio_request(
+        DOVE_GPIO0_7, &gc500_handle
+        );
+#else
+    ret = request_irq(
+        Device->irqLines[gcvCORE_VG], isrRoutineVG, IRQF_SHARED,
+        "galcore interrupt service for 2D", Device
+        );
+#endif
+
+    if (ret != 0)
+    {
+        gcmkTRACE_ZONE(
+            gcvLEVEL_ERROR, gcvZONE_DRIVER,
+            "%s(%d): Could not register irq line %d (error=%d)\n",
+            __FUNCTION__, __LINE__,
+            Device->irqLines[gcvCORE_VG], ret
+            );
+
+        gcmkONERROR(gcvSTATUS_GENERIC_IO);
+    }
+
+    /* Mark ISR as initialized. */
+    Device->isrInitializeds[gcvCORE_VG] = gcvTRUE;
+
+    gcmkFOOTER_NO();
+    return gcvSTATUS_OK;
+
+OnError:
+    gcmkFOOTER();
+    return status;
+}
+
+/*******************************************************************************
+**
+**  gckGALDEVICE_Release_ISR
+**
+**  Release the irq line.
+**
+**  INPUT:
+**
+**      gckGALDEVICE Device
+**          Pointer to an gckGALDEVICE object.
+**
+**  OUTPUT:
+**
+**      Nothing.
+**
+**  RETURNS:
+**
+**      Nothing.
+*/
+gceSTATUS
+gckGALDEVICE_Release_ISR(
+    IN gckGALDEVICE Device
+    )
+{
+    gcmkHEADER_ARG("Device=0x%x", Device);
+
+    gcmkVERIFY_ARGUMENT(Device != NULL);
+
+    /* release the irq */
+    if (Device->isrInitializeds[gcvCORE_MAJOR])
+    {
+#ifdef FLAREON
+        dove_gpio_free(DOVE_GPIO0_7, "galcore interrupt service");
+#else
+        free_irq(Device->irqLines[gcvCORE_MAJOR], Device);
+#endif
+        Device->isrInitializeds[gcvCORE_MAJOR] = gcvFALSE;
+    }
+
+    gcmkFOOTER_NO();
+    return gcvSTATUS_OK;
+}
+
+gceSTATUS
+gckGALDEVICE_Release_ISR_2D(
+    IN gckGALDEVICE Device
+    )
+{
+    gcmkHEADER_ARG("Device=0x%x", Device);
+
+    gcmkVERIFY_ARGUMENT(Device != NULL);
+
+    /* release the irq */
+    if (Device->isrInitializeds[gcvCORE_2D])
+    {
+#ifdef FLAREON
+        dove_gpio_free(DOVE_GPIO0_7, "galcore interrupt service");
+#else
+        free_irq(Device->irqLines[gcvCORE_2D], Device);
+#endif
+
+        Device->isrInitializeds[gcvCORE_2D] = gcvFALSE;
+    }
+
+    gcmkFOOTER_NO();
+    return gcvSTATUS_OK;
+}
+
+gceSTATUS
+gckGALDEVICE_Release_ISR_VG(
+    IN gckGALDEVICE Device
+    )
+{
+    gcmkHEADER_ARG("Device=0x%x", Device);
+
+    gcmkVERIFY_ARGUMENT(Device != NULL);
+
+    /* release the irq */
+    if (Device->isrInitializeds[gcvCORE_VG])
+    {
+#ifdef FLAREON
+        dove_gpio_free(DOVE_GPIO0_7, "galcore interrupt service");
+#else
+        free_irq(Device->irqLines[gcvCORE_VG], Device);
+#endif
+
+        Device->isrInitializeds[gcvCORE_VG] = gcvFALSE;
+    }
+
+    gcmkFOOTER_NO();
+    return gcvSTATUS_OK;
+}
+
+/*******************************************************************************
+**
+**  gckGALDEVICE_Start_Threads
+**
+**  Start the daemon threads.
+**
+**  INPUT:
+**
+**      gckGALDEVICE Device
+**          Pointer to an gckGALDEVICE object.
+**
+**  OUTPUT:
+**
+**      Nothing.
+**
+**  RETURNS:
+**
+**      gcvSTATUS_OK
+**          Start successfully.
+**      gcvSTATUS_GENERIC_IO
+**          Start failed.
+*/
+gceSTATUS
+gckGALDEVICE_Start_Threads(
+    IN gckGALDEVICE Device
+    )
+{
+    gceSTATUS status;
+    struct task_struct * task;
+
+    gcmkHEADER_ARG("Device=0x%x", Device);
+
+    gcmkVERIFY_ARGUMENT(Device != NULL);
+
+#if gcdMULTI_GPU_AFFINITY
+    if (Device->kernels[gcvCORE_MAJOR] != gcvNULL)
+    {
+        /* Start the kernel thread. */
+        task = kthread_run(threadRoutine3D0, Device, "galcore_3d_0");
+
+        if (IS_ERR(task))
+        {
+            gcmkTRACE_ZONE(
+                gcvLEVEL_ERROR, gcvZONE_DRIVER,
+                "%s(%d): Could not start the kernel thread.\n",
+                __FUNCTION__, __LINE__
+                );
+
+            gcmkONERROR(gcvSTATUS_GENERIC_IO);
+        }
+
+        Device->threadCtxts[gcvCORE_MAJOR]          = task;
+        Device->threadInitializeds[gcvCORE_MAJOR]   = gcvTRUE;
+    }
+
+    if (Device->kernels[gcvCORE_OCL] != gcvNULL)
+    {
+        /* Start the kernel thread. */
+        task = kthread_run(threadRoutine3D1, Device, "galcore_3d_1");
+
+        if (IS_ERR(task))
+        {
+            gcmkTRACE_ZONE(
+                gcvLEVEL_ERROR, gcvZONE_DRIVER,
+                "%s(%d): Could not start the kernel thread.\n",
+                __FUNCTION__, __LINE__
+                );
+
+            gcmkONERROR(gcvSTATUS_GENERIC_IO);
+        }
+
+        Device->threadCtxts[gcvCORE_OCL]          = task;
+        Device->threadInitializeds[gcvCORE_OCL]   = gcvTRUE;
+    }
+#else
+    if (Device->kernels[gcvCORE_MAJOR] != gcvNULL)
+    {
+        /* Start the kernel thread. */
+        task = kthread_run(threadRoutine, Device, "galcore daemon thread");
+
+        if (IS_ERR(task))
+        {
+            gcmkTRACE_ZONE(
+                gcvLEVEL_ERROR, gcvZONE_DRIVER,
+                "%s(%d): Could not start the kernel thread.\n",
+                __FUNCTION__, __LINE__
+                );
+
+            gcmkONERROR(gcvSTATUS_GENERIC_IO);
+        }
+
+        Device->threadCtxts[gcvCORE_MAJOR]          = task;
+        Device->threadInitializeds[gcvCORE_MAJOR]   = gcvTRUE;
+    }
+#endif
+
+    if (Device->kernels[gcvCORE_2D] != gcvNULL)
+    {
+        /* Start the kernel thread. */
+        task = kthread_run(threadRoutine2D, Device, "galcore daemon thread for 2D");
+
+        if (IS_ERR(task))
+        {
+            gcmkTRACE_ZONE(
+                gcvLEVEL_ERROR, gcvZONE_DRIVER,
+                "%s(%d): Could not start the kernel thread.\n",
+                __FUNCTION__, __LINE__
+                );
+
+            gcmkONERROR(gcvSTATUS_GENERIC_IO);
+        }
+
+        Device->threadCtxts[gcvCORE_2D]         = task;
+        Device->threadInitializeds[gcvCORE_2D]  = gcvTRUE;
+    }
+    else
+    {
+        Device->threadInitializeds[gcvCORE_2D]  = gcvFALSE;
+    }
+
+    if (Device->kernels[gcvCORE_VG] != gcvNULL)
+    {
+        /* Start the kernel thread. */
+        task = kthread_run(threadRoutineVG, Device, "galcore daemon thread for VG");
+
+        if (IS_ERR(task))
+        {
+            gcmkTRACE_ZONE(
+                gcvLEVEL_ERROR, gcvZONE_DRIVER,
+                "%s(%d): Could not start the kernel thread.\n",
+                __FUNCTION__, __LINE__
+                );
+
+            gcmkONERROR(gcvSTATUS_GENERIC_IO);
+        }
+
+        Device->threadCtxts[gcvCORE_VG]         = task;
+        Device->threadInitializeds[gcvCORE_VG]  = gcvTRUE;
+    }
+    else
+    {
+        Device->threadInitializeds[gcvCORE_VG]  = gcvFALSE;
+    }
+
+    gcmkFOOTER_NO();
+    return gcvSTATUS_OK;
+
+OnError:
+    gcmkFOOTER();
+    return status;
+}
+
+/*******************************************************************************
+**
+**  gckGALDEVICE_Stop_Threads
+**
+**  Stop the gal device, including the following actions: stop the daemon
+**  thread, release the irq.
+**
+**  INPUT:
+**
+**      gckGALDEVICE Device
+**          Pointer to an gckGALDEVICE object.
+**
+**  OUTPUT:
+**
+**      Nothing.
+**
+**  RETURNS:
+**
+**      Nothing.
+*/
+gceSTATUS
+gckGALDEVICE_Stop_Threads(
+    gckGALDEVICE Device
+    )
+{
+    gctINT i;
+
+    gcmkHEADER_ARG("Device=0x%x", Device);
+
+    gcmkVERIFY_ARGUMENT(Device != NULL);
+
+    for (i = 0; i < gcdMAX_GPU_COUNT; i++)
+    {
+        {
+            /* Stop the kernel threads. */
+            if (Device->threadInitializeds[i])
+            {
+                Device->killThread = gcvTRUE;
+                up(&Device->semas[i]);
+
+                kthread_stop(Device->threadCtxts[i]);
+                Device->threadCtxts[i]        = gcvNULL;
+                Device->threadInitializeds[i] = gcvFALSE;
+            }
+        }
+    }
+
+    gcmkFOOTER_NO();
+    return gcvSTATUS_OK;
+}
+
+/*******************************************************************************
+**
+**  gckGALDEVICE_Start
+**
+**  Start the gal device, including the following actions: setup the isr routine
+**  and start the daemoni thread.
+**
+**  INPUT:
+**
+**      gckGALDEVICE Device
+**          Pointer to an gckGALDEVICE object.
+**
+**  OUTPUT:
+**
+**      Nothing.
+**
+**  RETURNS:
+**
+**      gcvSTATUS_OK
+**          Start successfully.
+*/
+gceSTATUS
+gckGALDEVICE_Start(
+    IN gckGALDEVICE Device
+    )
+{
+    gceSTATUS status;
+
+    gcmkHEADER_ARG("Device=0x%x", Device);
+
+    /* Start the kernel thread. */
+    gcmkONERROR(gckGALDEVICE_Start_Threads(Device));
+
+    if (Device->kernels[gcvCORE_MAJOR] != gcvNULL)
+    {
+        /* Setup the ISR routine. */
+        gcmkONERROR(gckGALDEVICE_Setup_ISR(Device));
+
+        /* Switch to SUSPEND power state. */
+        gcmkONERROR(gckHARDWARE_SetPowerManagementState(
+            Device->kernels[gcvCORE_MAJOR]->hardware, gcvPOWER_OFF_BROADCAST
+            ));
+    }
+
+    if (Device->kernels[gcvCORE_2D] != gcvNULL)
+    {
+        /* Setup the ISR routine. */
+        gcmkONERROR(gckGALDEVICE_Setup_ISR_2D(Device));
+
+        /* Switch to SUSPEND power state. */
+        gcmkONERROR(gckHARDWARE_SetPowerManagementState(
+            Device->kernels[gcvCORE_2D]->hardware, gcvPOWER_OFF_BROADCAST
+            ));
+    }
+
+    if (Device->kernels[gcvCORE_VG] != gcvNULL)
+    {
+        /* Setup the ISR routine. */
+        gcmkONERROR(gckGALDEVICE_Setup_ISR_VG(Device));
+
+    }
+
+    gcmkFOOTER_NO();
+    return gcvSTATUS_OK;
+
+OnError:
+    gcmkFOOTER();
+    return status;
+}
+
+/*******************************************************************************
+**
+**  gckGALDEVICE_Stop
+**
+**  Stop the gal device, including the following actions: stop the daemon
+**  thread, release the irq.
+**
+**  INPUT:
+**
+**      gckGALDEVICE Device
+**          Pointer to an gckGALDEVICE object.
+**
+**  OUTPUT:
+**
+**      Nothing.
+**
+**  RETURNS:
+**
+**      Nothing.
+*/
+gceSTATUS
+gckGALDEVICE_Stop(
+    gckGALDEVICE Device
+    )
+{
+    gceSTATUS status;
+
+    gcmkHEADER_ARG("Device=0x%x", Device);
+
+    gcmkVERIFY_ARGUMENT(Device != NULL);
+
+    if (Device->kernels[gcvCORE_MAJOR] != gcvNULL)
+    {
+        /* Switch to OFF power state. */
+        gcmkONERROR(gckHARDWARE_SetPowerManagementState(
+            Device->kernels[gcvCORE_MAJOR]->hardware, gcvPOWER_OFF
+            ));
+
+        /* Remove the ISR routine. */
+        gcmkONERROR(gckGALDEVICE_Release_ISR(Device));
+    }
+
+    if (Device->kernels[gcvCORE_2D] != gcvNULL)
+    {
+        /* Setup the ISR routine. */
+        gcmkONERROR(gckGALDEVICE_Release_ISR_2D(Device));
+
+        /* Switch to OFF power state. */
+        gcmkONERROR(gckHARDWARE_SetPowerManagementState(
+            Device->kernels[gcvCORE_2D]->hardware, gcvPOWER_OFF
+            ));
+    }
+
+    if (Device->kernels[gcvCORE_VG] != gcvNULL)
+    {
+        /* Setup the ISR routine. */
+        gcmkONERROR(gckGALDEVICE_Release_ISR_VG(Device));
+
+    }
+
+    /* Stop the kernel thread. */
+    gcmkONERROR(gckGALDEVICE_Stop_Threads(Device));
+
+    gcmkFOOTER_NO();
+    return gcvSTATUS_OK;
+
+OnError:
+    gcmkFOOTER();
+    return status;
+}
diff --git a/src/hal/os/linux/kernel/gc_hal_kernel_device.h b/src/hal/os/linux/kernel/gc_hal_kernel_device.h
new file mode 100755
index 0000000..cd6f1ca
--- /dev/null
+++ b/src/hal/os/linux/kernel/gc_hal_kernel_device.h
@@ -0,0 +1,264 @@
+/****************************************************************************
+*
+*    The MIT License (MIT)
+*
+*    Copyright (c) 2014 Vivante Corporation
+*
+*    Permission is hereby granted, free of charge, to any person obtaining a
+*    copy of this software and associated documentation files (the "Software"),
+*    to deal in the Software without restriction, including without limitation
+*    the rights to use, copy, modify, merge, publish, distribute, sublicense,
+*    and/or sell copies of the Software, and to permit persons to whom the
+*    Software is furnished to do so, subject to the following conditions:
+*
+*    The above copyright notice and this permission notice shall be included in
+*    all copies or substantial portions of the Software.
+*
+*    THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+*    IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+*    FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+*    AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+*    LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+*    FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+*    DEALINGS IN THE SOFTWARE.
+*
+*****************************************************************************
+*
+*    The GPL License (GPL)
+*
+*    Copyright (C) 2014  Vivante Corporation
+*
+*    This program is free software; you can redistribute it and/or
+*    modify it under the terms of the GNU General Public License
+*    as published by the Free Software Foundation; either version 2
+*    of the License, or (at your option) any later version.
+*
+*    This program is distributed in the hope that it will be useful,
+*    but WITHOUT ANY WARRANTY; without even the implied warranty of
+*    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+*    GNU General Public License for more details.
+*
+*    You should have received a copy of the GNU General Public License
+*    along with this program; if not, write to the Free Software Foundation,
+*    Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+*
+*****************************************************************************
+*
+*    Note: This software is released under dual MIT and GPL licenses. A
+*    recipient may use this file under the terms of either the MIT license or
+*    GPL License. If you wish to use only one license not the other, you can
+*    indicate your decision by deleting one of the above license notices in your
+*    version of this file.
+*
+*****************************************************************************/
+
+
+#ifndef __gc_hal_kernel_device_h_
+#define __gc_hal_kernel_device_h_
+
+#include "gc_hal_kernel_debugfs.h"
+
+/******************************************************************************\
+******************************* gckGALDEVICE Structure *******************************
+\******************************************************************************/
+
+typedef struct _gckGALDEVICE
+{
+    /* Objects. */
+    gckOS               os;
+    gckKERNEL           kernels[gcdMAX_GPU_COUNT];
+
+    gcsPLATFORM*        platform;
+
+    /* Attributes. */
+    gctSIZE_T           internalSize;
+    gctPHYS_ADDR        internalPhysical;
+    gctUINT32           internalPhysicalName;
+    gctPOINTER          internalLogical;
+    gckVIDMEM           internalVidMem;
+    gctSIZE_T           externalSize;
+    gctPHYS_ADDR        externalPhysical;
+    gctUINT32           externalPhysicalName;
+    gctPOINTER          externalLogical;
+    gckVIDMEM           externalVidMem;
+    gckVIDMEM           contiguousVidMem;
+    gctPOINTER          contiguousBase;
+    gctPHYS_ADDR        contiguousPhysical;
+    gctUINT32           contiguousPhysicalName;
+    gctSIZE_T           contiguousSize;
+    gctBOOL             contiguousMapped;
+    gctPOINTER          contiguousMappedUser;
+    gctBOOL             contiguousRequested;
+    gctSIZE_T           systemMemorySize;
+    gctUINT32           systemMemoryBaseAddress;
+    gctPOINTER          registerBases[gcdMAX_GPU_COUNT];
+    gctSIZE_T           registerSizes[gcdMAX_GPU_COUNT];
+    gctUINT32           baseAddress;
+    gctUINT32           physBase;
+    gctUINT32           physSize;
+    gctBOOL             mmu;
+    gctUINT32           requestedRegisterMemBases[gcdMAX_GPU_COUNT];
+    gctSIZE_T           requestedRegisterMemSizes[gcdMAX_GPU_COUNT];
+    gctUINT32           requestedContiguousBase;
+    gctSIZE_T           requestedContiguousSize;
+
+    /* IRQ management. */
+    gctINT              irqLines[gcdMAX_GPU_COUNT];
+    gctBOOL             isrInitializeds[gcdMAX_GPU_COUNT];
+
+    /* Thread management. */
+    struct task_struct  *threadCtxts[gcdMAX_GPU_COUNT];
+    struct semaphore    semas[gcdMAX_GPU_COUNT];
+    gctBOOL             threadInitializeds[gcdMAX_GPU_COUNT];
+    gctBOOL             killThread;
+
+    /* Signal management. */
+    gctINT              signal;
+
+    /* Core mapping */
+    gceCORE             coreMapping[8];
+
+    /* States before suspend. */
+    gceCHIPPOWERSTATE   statesStored[gcdMAX_GPU_COUNT];
+
+    /* Device Debug File System Entry in kernel. */
+    struct _gcsDEBUGFS_Node * dbgNode;
+
+    gcsDEBUGFS_DIR      debugfsDir;
+}
+* gckGALDEVICE;
+
+typedef struct _gcsHAL_PRIVATE_DATA
+{
+    gckGALDEVICE        device;
+    gctPOINTER          mappedMemory;
+    gctPOINTER          contiguousLogical;
+    /* The process opening the device may not be the same as the one that closes it. */
+    gctUINT32           pidOpen;
+}
+gcsHAL_PRIVATE_DATA, * gcsHAL_PRIVATE_DATA_PTR;
+
+typedef struct _gcsDEVICE_CONSTRUCT_ARGS
+{
+    gctBOOL             recovery;
+    gctUINT             stuckDump;
+    gctUINT             gpu3DMinClock;
+
+    gctBOOL             contiguousRequested;
+    gcsPLATFORM*        platform;
+    gctBOOL             mmu;
+    gctBOOL             registerMemMapped;
+    gctPOINTER             registerMemAddress;
+#if gcdENABLE_DEC_COMPRESSION
+    gctUINT32           registerMemBaseDEC300;
+    gctSIZE_T           registerMemSizeDEC300;
+#endif
+}
+
+gcsDEVICE_CONSTRUCT_ARGS;
+
+gceSTATUS gckGALDEVICE_Setup_ISR(
+    IN gckGALDEVICE Device
+    );
+
+gceSTATUS gckGALDEVICE_Setup_ISR_2D(
+    IN gckGALDEVICE Device
+    );
+
+gceSTATUS gckGALDEVICE_Setup_ISR_VG(
+    IN gckGALDEVICE Device
+    );
+
+gceSTATUS gckGALDEVICE_Release_ISR(
+    IN gckGALDEVICE Device
+    );
+
+gceSTATUS gckGALDEVICE_Release_ISR_2D(
+    IN gckGALDEVICE Device
+    );
+
+gceSTATUS gckGALDEVICE_Release_ISR_VG(
+    IN gckGALDEVICE Device
+    );
+
+gceSTATUS gckGALDEVICE_Start_Threads(
+    IN gckGALDEVICE Device
+    );
+
+gceSTATUS gckGALDEVICE_Stop_Threads(
+    gckGALDEVICE Device
+    );
+
+gceSTATUS gckGALDEVICE_Start(
+    IN gckGALDEVICE Device
+    );
+
+gceSTATUS gckGALDEVICE_Stop(
+    gckGALDEVICE Device
+    );
+
+gceSTATUS gckGALDEVICE_Construct(
+#if gcdMULTI_GPU || gcdMULTI_GPU_AFFINITY
+    IN gctINT IrqLine3D0,
+    IN gctUINT32 RegisterMemBase3D0,
+    IN gctSIZE_T RegisterMemSize3D0,
+    IN gctINT IrqLine3D1,
+    IN gctUINT32 RegisterMemBase3D1,
+    IN gctSIZE_T RegisterMemSize3D1,
+#else
+    IN gctINT IrqLine,
+    IN gctUINT32 RegisterMemBase,
+    IN gctSIZE_T RegisterMemSize,
+#endif
+    IN gctINT IrqLine2D,
+    IN gctUINT32 RegisterMemBase2D,
+    IN gctSIZE_T RegisterMemSize2D,
+    IN gctINT IrqLineVG,
+    IN gctUINT32 RegisterMemBaseVG,
+    IN gctSIZE_T RegisterMemSizeVG,
+    IN gctUINT32 ContiguousBase,
+    IN gctSIZE_T ContiguousSize,
+    IN gctSIZE_T BankSize,
+    IN gctINT FastClear,
+    IN gctINT Compression,
+    IN gctUINT32 PhysBaseAddr,
+    IN gctUINT32 PhysSize,
+    IN gctINT Signal,
+    IN gctUINT LogFileSize,
+    IN gctINT PowerManagement,
+    IN gctINT GpuProfiler,
+    IN gcsDEVICE_CONSTRUCT_ARGS * Args,
+    OUT gckGALDEVICE *Device
+    );
+
+gceSTATUS gckGALDEVICE_Destroy(
+    IN gckGALDEVICE Device
+    );
+
+static gcmINLINE gckKERNEL
+_GetValidKernel(
+    gckGALDEVICE Device
+    )
+{
+    if (Device->kernels[gcvCORE_MAJOR])
+    {
+        return Device->kernels[gcvCORE_MAJOR];
+    }
+    else
+    if (Device->kernels[gcvCORE_2D])
+    {
+        return Device->kernels[gcvCORE_2D];
+    }
+    else
+    if (Device->kernels[gcvCORE_VG])
+    {
+        return Device->kernels[gcvCORE_VG];
+    }
+    else
+    {
+        gcmkASSERT(gcvFALSE);
+        return gcvNULL;
+    }
+}
+
+#endif /* __gc_hal_kernel_device_h_ */
diff --git a/src/hal/os/linux/kernel/gc_hal_kernel_iommu.c b/src/hal/os/linux/kernel/gc_hal_kernel_iommu.c
new file mode 100755
index 0000000..843b7e1
--- /dev/null
+++ b/src/hal/os/linux/kernel/gc_hal_kernel_iommu.c
@@ -0,0 +1,250 @@
+/****************************************************************************
+*
+*    The MIT License (MIT)
+*
+*    Copyright (c) 2014 Vivante Corporation
+*
+*    Permission is hereby granted, free of charge, to any person obtaining a
+*    copy of this software and associated documentation files (the "Software"),
+*    to deal in the Software without restriction, including without limitation
+*    the rights to use, copy, modify, merge, publish, distribute, sublicense,
+*    and/or sell copies of the Software, and to permit persons to whom the
+*    Software is furnished to do so, subject to the following conditions:
+*
+*    The above copyright notice and this permission notice shall be included in
+*    all copies or substantial portions of the Software.
+*
+*    THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+*    IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+*    FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+*    AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+*    LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+*    FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+*    DEALINGS IN THE SOFTWARE.
+*
+*****************************************************************************
+*
+*    The GPL License (GPL)
+*
+*    Copyright (C) 2014  Vivante Corporation
+*
+*    This program is free software; you can redistribute it and/or
+*    modify it under the terms of the GNU General Public License
+*    as published by the Free Software Foundation; either version 2
+*    of the License, or (at your option) any later version.
+*
+*    This program is distributed in the hope that it will be useful,
+*    but WITHOUT ANY WARRANTY; without even the implied warranty of
+*    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+*    GNU General Public License for more details.
+*
+*    You should have received a copy of the GNU General Public License
+*    along with this program; if not, write to the Free Software Foundation,
+*    Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+*
+*****************************************************************************
+*
+*    Note: This software is released under dual MIT and GPL licenses. A
+*    recipient may use this file under the terms of either the MIT license or
+*    GPL License. If you wish to use only one license not the other, you can
+*    indicate your decision by deleting one of the above license notices in your
+*    version of this file.
+*
+*****************************************************************************/
+
+
+#include "gc_hal_kernel_linux.h"
+#include "gc_hal_kernel_device.h"
+
+#include <linux/iommu.h>
+#include <linux/platform_device.h>
+
+#define _GC_OBJ_ZONE gcvZONE_OS
+
+typedef struct _gcsIOMMU
+{
+    struct iommu_domain * domain;
+    struct device *       device;
+}
+gcsIOMMU;
+
+#if LINUX_VERSION_CODE >= KERNEL_VERSION(3,5,0)
+static int
+_IOMMU_Fault_Handler(
+    struct iommu_domain * Domain,
+    struct device * Dev,
+    unsigned long DomainAddress,
+    int flags,
+    void * args
+    )
+#else
+static int
+_IOMMU_Fault_Handler(
+    struct iommu_domain * Domain,
+    struct device * Dev,
+    unsigned long DomainAddress,
+    int flags
+    )
+#endif
+{
+    return 0;
+}
+
+static int
+_FlatMapping(
+    IN gckIOMMU Iommu
+    )
+{
+    gceSTATUS status;
+    gctUINT32 physical;
+
+    for (physical = 0; physical < 0x80000000; physical += PAGE_SIZE)
+    {
+        gcmkTRACE_ZONE(
+            gcvLEVEL_INFO, gcvZONE_OS,
+            "Map %x => %x bytes = %d",
+            physical, physical, PAGE_SIZE
+            );
+
+        gcmkONERROR(gckIOMMU_Map(Iommu, physical, physical, PAGE_SIZE));
+    }
+
+    return gcvSTATUS_OK;
+
+OnError:
+    return status;
+}
+
+void
+gckIOMMU_Destory(
+    IN gckOS Os,
+    IN gckIOMMU Iommu
+    )
+{
+    gcmkHEADER();
+
+    if (Iommu->domain && Iommu->device)
+    {
+        iommu_attach_device(Iommu->domain, Iommu->device);
+    }
+
+    if (Iommu->domain)
+    {
+        iommu_domain_free(Iommu->domain);
+    }
+
+    if (Iommu)
+    {
+        gcmkOS_SAFE_FREE(Os, Iommu);
+    }
+
+    gcmkFOOTER_NO();
+}
+
+gceSTATUS
+gckIOMMU_Construct(
+    IN gckOS Os,
+    OUT gckIOMMU * Iommu
+    )
+{
+    gceSTATUS status;
+    gckIOMMU iommu = gcvNULL;
+    struct device *dev;
+    int ret;
+
+    gcmkHEADER();
+
+    dev = &Os->device->platform->device->dev;
+
+    gcmkONERROR(gckOS_Allocate(Os, gcmSIZEOF(gcsIOMMU), (gctPOINTER *)&iommu));
+
+    gckOS_ZeroMemory(iommu, gcmSIZEOF(gcsIOMMU));
+
+    iommu->domain = iommu_domain_alloc(&platform_bus_type);
+
+    if (!iommu->domain)
+    {
+        gcmkTRACE_ZONE(gcvLEVEL_INFO, gcvZONE_OS, "iommu_domain_alloc() fail");
+
+        gcmkONERROR(gcvSTATUS_NOT_SUPPORTED);
+    }
+
+#if LINUX_VERSION_CODE >= KERNEL_VERSION(3,5,0)
+    iommu_set_fault_handler(iommu->domain, _IOMMU_Fault_Handler, dev);
+#else
+    iommu_set_fault_handler(iommu->domain, _IOMMU_Fault_Handler);
+#endif
+
+    ret = iommu_attach_device(iommu->domain, dev);
+
+    if (ret)
+    {
+        gcmkTRACE_ZONE(
+            gcvLEVEL_INFO, gcvZONE_OS, "iommu_attach_device() fail %d", ret);
+
+        gcmkONERROR(gcvSTATUS_NOT_SUPPORTED);
+    }
+
+    iommu->device = dev;
+
+    _FlatMapping(iommu);
+
+    *Iommu = iommu;
+
+    gcmkFOOTER_NO();
+    return gcvSTATUS_OK;
+
+OnError:
+
+    gckIOMMU_Destory(Os, iommu);
+
+    gcmkFOOTER();
+    return status;
+}
+
+gceSTATUS
+gckIOMMU_Map(
+    IN gckIOMMU Iommu,
+    IN gctUINT32 DomainAddress,
+    IN gctUINT32 Physical,
+    IN gctUINT32 Bytes
+    )
+{
+    gceSTATUS status;
+    int ret;
+
+    gcmkHEADER_ARG("DomainAddress=%#X, Physical=%#X, Bytes=%d",
+                   DomainAddress, Physical, Bytes);
+
+    ret = iommu_map(Iommu->domain, DomainAddress, Physical, Bytes, 0);
+
+    if (ret)
+    {
+        gcmkONERROR(gcvSTATUS_NOT_SUPPORTED);
+    }
+
+    gcmkFOOTER_NO();
+    return gcvSTATUS_OK;
+
+OnError:
+
+    gcmkFOOTER();
+    return status;
+
+}
+
+gceSTATUS
+gckIOMMU_Unmap(
+    IN gckIOMMU Iommu,
+    IN gctUINT32 DomainAddress,
+    IN gctUINT32 Bytes
+    )
+{
+    gcmkHEADER();
+
+    iommu_unmap(Iommu->domain, DomainAddress, Bytes);
+
+    gcmkFOOTER_NO();
+    return gcvSTATUS_OK;
+}
+
diff --git a/src/hal/os/linux/kernel/gc_hal_kernel_linux.c b/src/hal/os/linux/kernel/gc_hal_kernel_linux.c
new file mode 100755
index 0000000..f71b697
--- /dev/null
+++ b/src/hal/os/linux/kernel/gc_hal_kernel_linux.c
@@ -0,0 +1,508 @@
+/****************************************************************************
+*
+*    The MIT License (MIT)
+*
+*    Copyright (c) 2014 Vivante Corporation
+*
+*    Permission is hereby granted, free of charge, to any person obtaining a
+*    copy of this software and associated documentation files (the "Software"),
+*    to deal in the Software without restriction, including without limitation
+*    the rights to use, copy, modify, merge, publish, distribute, sublicense,
+*    and/or sell copies of the Software, and to permit persons to whom the
+*    Software is furnished to do so, subject to the following conditions:
+*
+*    The above copyright notice and this permission notice shall be included in
+*    all copies or substantial portions of the Software.
+*
+*    THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+*    IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+*    FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+*    AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+*    LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+*    FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+*    DEALINGS IN THE SOFTWARE.
+*
+*****************************************************************************
+*
+*    The GPL License (GPL)
+*
+*    Copyright (C) 2014  Vivante Corporation
+*
+*    This program is free software; you can redistribute it and/or
+*    modify it under the terms of the GNU General Public License
+*    as published by the Free Software Foundation; either version 2
+*    of the License, or (at your option) any later version.
+*
+*    This program is distributed in the hope that it will be useful,
+*    but WITHOUT ANY WARRANTY; without even the implied warranty of
+*    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+*    GNU General Public License for more details.
+*
+*    You should have received a copy of the GNU General Public License
+*    along with this program; if not, write to the Free Software Foundation,
+*    Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+*
+*****************************************************************************
+*
+*    Note: This software is released under dual MIT and GPL licenses. A
+*    recipient may use this file under the terms of either the MIT license or
+*    GPL License. If you wish to use only one license not the other, you can
+*    indicate your decision by deleting one of the above license notices in your
+*    version of this file.
+*
+*****************************************************************************/
+
+
+#include "gc_hal_kernel_linux.h"
+
+#define _GC_OBJ_ZONE    gcvZONE_KERNEL
+
+/******************************************************************************\
+******************************* gckKERNEL API Code ******************************
+\******************************************************************************/
+
+/*******************************************************************************
+**
+**  gckKERNEL_QueryVideoMemory
+**
+**  Query the amount of video memory.
+**
+**  INPUT:
+**
+**      gckKERNEL Kernel
+**          Pointer to an gckKERNEL object.
+**
+**  OUTPUT:
+**
+**      gcsHAL_INTERFACE * Interface
+**          Pointer to an gcsHAL_INTERFACE structure that will be filled in with
+**          the memory information.
+*/
+gceSTATUS
+gckKERNEL_QueryVideoMemory(
+    IN gckKERNEL Kernel,
+    OUT gcsHAL_INTERFACE * Interface
+    )
+{
+    gckGALDEVICE device;
+
+    gcmkHEADER_ARG("Kernel=%p", Kernel);
+
+    /* Verify the arguments. */
+    gcmkVERIFY_OBJECT(Kernel, gcvOBJ_KERNEL);
+    gcmkVERIFY_ARGUMENT(Interface != NULL);
+
+    /* Extract the pointer to the gckGALDEVICE class. */
+    device = (gckGALDEVICE) Kernel->context;
+
+    /* Get internal memory size and physical address. */
+    Interface->u.QueryVideoMemory.internalSize = device->internalSize;
+    Interface->u.QueryVideoMemory.internalPhysical = device->internalPhysicalName;
+
+    /* Get external memory size and physical address. */
+    Interface->u.QueryVideoMemory.externalSize = device->externalSize;
+    Interface->u.QueryVideoMemory.externalPhysical = device->externalPhysicalName;
+
+    /* Get contiguous memory size and physical address. */
+    Interface->u.QueryVideoMemory.contiguousSize = device->contiguousSize;
+    Interface->u.QueryVideoMemory.contiguousPhysical = device->contiguousPhysicalName;
+
+    /* Success. */
+    gcmkFOOTER_NO();
+    return gcvSTATUS_OK;
+}
+
+/*******************************************************************************
+**
+**  gckKERNEL_GetVideoMemoryPool
+**
+**  Get the gckVIDMEM object belonging to the specified pool.
+**
+**  INPUT:
+**
+**      gckKERNEL Kernel
+**          Pointer to an gckKERNEL object.
+**
+**      gcePOOL Pool
+**          Pool to query gckVIDMEM object for.
+**
+**  OUTPUT:
+**
+**      gckVIDMEM * VideoMemory
+**          Pointer to a variable that will hold the pointer to the gckVIDMEM
+**          object belonging to the requested pool.
+*/
+gceSTATUS
+gckKERNEL_GetVideoMemoryPool(
+    IN gckKERNEL Kernel,
+    IN gcePOOL Pool,
+    OUT gckVIDMEM * VideoMemory
+    )
+{
+    gckGALDEVICE device;
+    gckVIDMEM videoMemory;
+
+    gcmkHEADER_ARG("Kernel=%p Pool=%d", Kernel, Pool);
+
+    /* Verify the arguments. */
+    gcmkVERIFY_OBJECT(Kernel, gcvOBJ_KERNEL);
+    gcmkVERIFY_ARGUMENT(VideoMemory != NULL);
+
+    /* Extract the pointer to the gckGALDEVICE class. */
+    device = (gckGALDEVICE) Kernel->context;
+
+    /* Dispatch on pool. */
+    switch (Pool)
+    {
+    case gcvPOOL_LOCAL_INTERNAL:
+        /* Internal memory. */
+        videoMemory = device->internalVidMem;
+        break;
+
+    case gcvPOOL_LOCAL_EXTERNAL:
+        /* External memory. */
+        videoMemory = device->externalVidMem;
+        break;
+
+    case gcvPOOL_SYSTEM:
+        /* System memory. */
+        videoMemory = device->contiguousVidMem;
+        break;
+
+    default:
+        /* Unknown pool. */
+        videoMemory = NULL;
+    }
+
+    /* Return pointer to the gckVIDMEM object. */
+    *VideoMemory = videoMemory;
+
+    /* Return status. */
+    gcmkFOOTER_ARG("*VideoMemory=%p", *VideoMemory);
+    return (videoMemory == NULL) ? gcvSTATUS_OUT_OF_MEMORY : gcvSTATUS_OK;
+}
+
+/*******************************************************************************
+**
+**  gckKERNEL_MapMemory
+**
+**  Map video memory into the current process space.
+**
+**  INPUT:
+**
+**      gckKERNEL Kernel
+**          Pointer to an gckKERNEL object.
+**
+**      gctPHYS_ADDR Physical
+**          Physical address of video memory to map.
+**
+**      gctSIZE_T Bytes
+**          Number of bytes to map.
+**
+**  OUTPUT:
+**
+**      gctPOINTER * Logical
+**          Pointer to a variable that will hold the base address of the mapped
+**          memory region.
+*/
+gceSTATUS
+gckKERNEL_MapMemory(
+    IN gckKERNEL Kernel,
+    IN gctPHYS_ADDR Physical,
+    IN gctSIZE_T Bytes,
+    OUT gctPOINTER * Logical
+    )
+{
+    gckKERNEL kernel = Kernel;
+    gctPHYS_ADDR physical = gcmNAME_TO_PTR(Physical);
+
+    return gckOS_MapMemory(Kernel->os, physical, Bytes, Logical);
+}
+
+/*******************************************************************************
+**
+**  gckKERNEL_UnmapMemory
+**
+**  Unmap video memory from the current process space.
+**
+**  INPUT:
+**
+**      gckKERNEL Kernel
+**          Pointer to an gckKERNEL object.
+**
+**      gctPHYS_ADDR Physical
+**          Physical address of video memory to map.
+**
+**      gctSIZE_T Bytes
+**          Number of bytes to map.
+**
+**      gctPOINTER Logical
+**          Base address of the mapped memory region.
+**
+**  OUTPUT:
+**
+**      Nothing.
+*/
+gceSTATUS
+gckKERNEL_UnmapMemory(
+    IN gckKERNEL Kernel,
+    IN gctPHYS_ADDR Physical,
+    IN gctSIZE_T Bytes,
+    IN gctPOINTER Logical
+    )
+{
+    gckKERNEL kernel = Kernel;
+    gctPHYS_ADDR physical = gcmNAME_TO_PTR(Physical);
+
+    return gckOS_UnmapMemory(Kernel->os, physical, Bytes, Logical);
+}
+
+/*******************************************************************************
+**
+**  gckKERNEL_MapVideoMemory
+**
+**  Get the logical address for a hardware specific memory address for the
+**  current process.
+**
+**  INPUT:
+**
+**      gckKERNEL Kernel
+**          Pointer to an gckKERNEL object.
+**
+**      gctBOOL InUserSpace
+**          gcvTRUE to map the memory into the user space.
+**
+**      gctUINT32 Address
+**          Hardware specific memory address.
+**
+**  OUTPUT:
+**
+**      gctPOINTER * Logical
+**          Pointer to a variable that will hold the logical address of the
+**          specified memory address.
+*/
+gceSTATUS
+gckKERNEL_MapVideoMemoryEx(
+    IN gckKERNEL Kernel,
+    IN gceCORE Core,
+    IN gctBOOL InUserSpace,
+    IN gctUINT32 Address,
+    OUT gctPOINTER * Logical
+    )
+{
+    gckGALDEVICE device   = gcvNULL;
+    PLINUX_MDL mdl        = gcvNULL;
+    PLINUX_MDL_MAP mdlMap = gcvNULL;
+    gcePOOL pool          = gcvPOOL_UNKNOWN;
+    gctUINT32 offset      = 0;
+    gctUINT32 base        = 0;
+    gceSTATUS status;
+    gctPOINTER logical    = gcvNULL;
+    gctUINT32 baseAddress;
+    gctPHYS_ADDR_T physical;
+
+    gcmkHEADER_ARG("Kernel=%p InUserSpace=%d Address=%08x",
+                   Kernel, InUserSpace, Address);
+
+    /* Verify the arguments. */
+    gcmkVERIFY_OBJECT(Kernel, gcvOBJ_KERNEL);
+    gcmkVERIFY_ARGUMENT(Logical != NULL);
+
+    /* Extract the pointer to the gckGALDEVICE class. */
+    device = (gckGALDEVICE) Kernel->context;
+
+    {
+        /* Split the memory address into a pool type and offset. */
+        gcmkONERROR(
+            gckHARDWARE_SplitMemory(Kernel->hardware, Address, &pool, &offset));
+    }
+
+    /* Dispatch on pool. */
+    switch (pool)
+    {
+    case gcvPOOL_LOCAL_INTERNAL:
+        /* Internal memory. */
+        logical = device->internalLogical;
+        break;
+
+    case gcvPOOL_LOCAL_EXTERNAL:
+        /* External memory. */
+        logical = device->externalLogical;
+        break;
+
+    case gcvPOOL_SYSTEM:
+        /* System memory. */
+        if (device->contiguousMapped)
+        {
+            logical = device->contiguousBase;
+        }
+        else
+        {
+            gctINT processID;
+            gckOS_GetProcessID(&processID);
+
+            mdl = (PLINUX_MDL) device->contiguousPhysical;
+
+            mdlMap = FindMdlMap(mdl, processID);
+            gcmkASSERT(mdlMap);
+
+            logical = (gctPOINTER) mdlMap->vmaAddr;
+        }
+        {
+            gctUINT32 systemBaseAddress = 0;
+
+            if (Kernel->hardware->mmuVersion == 0)
+            {
+                gcmkONERROR(gckOS_GetBaseAddress(Kernel->os, &systemBaseAddress));
+            }
+
+            gcmkVERIFY_OK(
+                gckOS_CPUPhysicalToGPUPhysical(
+                    Kernel->os,
+                    device->contiguousVidMem->baseAddress - systemBaseAddress,
+                    &physical
+                    ));
+
+            gcmkSAFECASTPHYSADDRT(baseAddress, physical);
+
+            gcmkVERIFY_OK(
+                gckHARDWARE_SplitMemory(Kernel->hardware,
+                                        baseAddress,
+                                        &pool,
+                                        &base));
+        }
+        offset -= base;
+        break;
+
+    default:
+        /* Invalid memory pool. */
+        gcmkONERROR(gcvSTATUS_INVALID_ARGUMENT);
+    }
+
+    /* Build logical address of specified address. */
+    *Logical = (gctPOINTER) ((gctUINT8_PTR) logical + offset);
+
+    /* Success. */
+    gcmkFOOTER_ARG("*Logical=%p", *Logical);
+    return gcvSTATUS_OK;
+
+OnError:
+    /* Retunn the status. */
+    gcmkFOOTER();
+    return status;
+}
+
+/*******************************************************************************
+**
+**  gckKERNEL_MapVideoMemory
+**
+**  Get the logical address for a hardware specific memory address for the
+**  current process.
+**
+**  INPUT:
+**
+**      gckKERNEL Kernel
+**          Pointer to an gckKERNEL object.
+**
+**      gctBOOL InUserSpace
+**          gcvTRUE to map the memory into the user space.
+**
+**      gctUINT32 Address
+**          Hardware specific memory address.
+**
+**  OUTPUT:
+**
+**      gctPOINTER * Logical
+**          Pointer to a variable that will hold the logical address of the
+**          specified memory address.
+*/
+gceSTATUS
+gckKERNEL_MapVideoMemory(
+    IN gckKERNEL Kernel,
+    IN gctBOOL InUserSpace,
+    IN gctUINT32 Address,
+    OUT gctPOINTER * Logical
+    )
+{
+    return gckKERNEL_MapVideoMemoryEx(Kernel, gcvCORE_MAJOR, InUserSpace, Address, Logical);
+}
+/*******************************************************************************
+**
+**  gckKERNEL_Notify
+**
+**  This function iscalled by clients to notify the gckKERNRL object of an event.
+**
+**  INPUT:
+**
+**      gckKERNEL Kernel
+**          Pointer to an gckKERNEL object.
+**
+**      gceNOTIFY Notification
+**          Notification event.
+**
+**  OUTPUT:
+**
+**      Nothing.
+*/
+gceSTATUS
+gckKERNEL_Notify(
+    IN gckKERNEL Kernel,
+    IN gceNOTIFY Notification,
+    IN gctBOOL Data
+    )
+{
+    gceSTATUS status;
+
+    gcmkHEADER_ARG("Kernel=%p Notification=%d Data=%d",
+                   Kernel, Notification, Data);
+
+    /* Verify the arguments. */
+    gcmkVERIFY_OBJECT(Kernel, gcvOBJ_KERNEL);
+
+    /* Dispatch on notifcation. */
+    switch (Notification)
+    {
+    case gcvNOTIFY_INTERRUPT:
+        /* Process the interrupt. */
+#if COMMAND_PROCESSOR_VERSION > 1
+        status = gckINTERRUPT_Notify(Kernel->interrupt, Data);
+#else
+        status = gckHARDWARE_Interrupt(Kernel->hardware,
+                                       Data);
+#endif
+        break;
+
+    default:
+        status = gcvSTATUS_OK;
+        break;
+    }
+
+    /* Success. */
+    gcmkFOOTER();
+    return status;
+}
+
+gceSTATUS
+gckKERNEL_QuerySettings(
+    IN gckKERNEL Kernel,
+    OUT gcsKERNEL_SETTINGS * Settings
+    )
+{
+    gckGALDEVICE device;
+
+    gcmkHEADER_ARG("Kernel=%p", Kernel);
+
+    /* Verify the arguments. */
+    gcmkVERIFY_OBJECT(Kernel, gcvOBJ_KERNEL);
+    gcmkVERIFY_ARGUMENT(Settings != gcvNULL);
+
+    /* Extract the pointer to the gckGALDEVICE class. */
+    device = (gckGALDEVICE) Kernel->context;
+
+    /* Fill in signal. */
+    Settings->signal = device->signal;
+
+    /* Success. */
+    gcmkFOOTER_ARG("Settings->signal=%d", Settings->signal);
+    return gcvSTATUS_OK;
+}
diff --git a/src/hal/os/linux/kernel/gc_hal_kernel_linux.h b/src/hal/os/linux/kernel/gc_hal_kernel_linux.h
new file mode 100755
index 0000000..b863784
--- /dev/null
+++ b/src/hal/os/linux/kernel/gc_hal_kernel_linux.h
@@ -0,0 +1,437 @@
+/****************************************************************************
+*
+*    The MIT License (MIT)
+*
+*    Copyright (c) 2014 Vivante Corporation
+*
+*    Permission is hereby granted, free of charge, to any person obtaining a
+*    copy of this software and associated documentation files (the "Software"),
+*    to deal in the Software without restriction, including without limitation
+*    the rights to use, copy, modify, merge, publish, distribute, sublicense,
+*    and/or sell copies of the Software, and to permit persons to whom the
+*    Software is furnished to do so, subject to the following conditions:
+*
+*    The above copyright notice and this permission notice shall be included in
+*    all copies or substantial portions of the Software.
+*
+*    THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+*    IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+*    FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+*    AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+*    LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+*    FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+*    DEALINGS IN THE SOFTWARE.
+*
+*****************************************************************************
+*
+*    The GPL License (GPL)
+*
+*    Copyright (C) 2014  Vivante Corporation
+*
+*    This program is free software; you can redistribute it and/or
+*    modify it under the terms of the GNU General Public License
+*    as published by the Free Software Foundation; either version 2
+*    of the License, or (at your option) any later version.
+*
+*    This program is distributed in the hope that it will be useful,
+*    but WITHOUT ANY WARRANTY; without even the implied warranty of
+*    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+*    GNU General Public License for more details.
+*
+*    You should have received a copy of the GNU General Public License
+*    along with this program; if not, write to the Free Software Foundation,
+*    Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+*
+*****************************************************************************
+*
+*    Note: This software is released under dual MIT and GPL licenses. A
+*    recipient may use this file under the terms of either the MIT license or
+*    GPL License. If you wish to use only one license not the other, you can
+*    indicate your decision by deleting one of the above license notices in your
+*    version of this file.
+*
+*****************************************************************************/
+
+
+#ifndef __gc_hal_kernel_linux_h_
+#define __gc_hal_kernel_linux_h_
+
+#include <linux/version.h>
+#include <linux/init.h>
+#include <linux/module.h>
+#include <linux/fs.h>
+#include <linux/mm.h>
+#include <linux/sched.h>
+#include <linux/signal.h>
+#ifdef FLAREON
+#   include <asm/arch-realview/dove_gpio_irq.h>
+#endif
+#include <linux/interrupt.h>
+#include <linux/vmalloc.h>
+#include <linux/dma-mapping.h>
+#include <linux/kthread.h>
+
+#include <linux/idr.h>
+
+#ifdef MODVERSIONS
+#  include <linux/modversions.h>
+#endif
+#include <asm/io.h>
+#include <asm/uaccess.h>
+
+#if ENABLE_GPU_CLOCK_BY_DRIVER && LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,28)
+#include <linux/clk.h>
+#endif
+
+#define NTSTRSAFE_NO_CCH_FUNCTIONS
+#include "gc_hal.h"
+#include "gc_hal_driver.h"
+#include "gc_hal_kernel.h"
+#include "gc_hal_kernel_platform.h"
+#include "gc_hal_kernel_device.h"
+#include "gc_hal_kernel_os.h"
+#include "gc_hal_kernel_debugfs.h"
+
+
+#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,31)
+#define FIND_TASK_BY_PID(x) pid_task(find_vpid(x), PIDTYPE_PID)
+#elif LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,27)
+#define FIND_TASK_BY_PID(x) find_task_by_vpid(x)
+#else
+#define FIND_TASK_BY_PID(x) find_task_by_pid(x)
+#endif
+
+#define _WIDE(string)                L##string
+#define WIDE(string)                _WIDE(string)
+
+#define countof(a)                    (sizeof(a) / sizeof(a[0]))
+
+#ifndef DEVICE_NAME
+#ifdef CONFIG_DOVE_GPU
+#   define DEVICE_NAME              "dove_gpu"
+#else
+#   define DEVICE_NAME              "galcore"
+#endif
+#endif
+
+#ifndef CLASS_NAME
+#   define CLASS_NAME               "graphics_class"
+#endif
+
+#define GetPageCount(size, offset)     ((((size) + ((offset) & ~PAGE_CACHE_MASK)) + PAGE_CACHE_SIZE - 1) >> PAGE_CACHE_SHIFT)
+
+#if LINUX_VERSION_CODE >= KERNEL_VERSION (3,7,0)
+#define gcdVM_FLAGS (VM_IO | VM_DONTCOPY | VM_DONTEXPAND | VM_DONTDUMP)
+#else
+#define gcdVM_FLAGS (VM_IO | VM_DONTCOPY | VM_DONTEXPAND | VM_RESERVED)
+#endif
+
+/* Protection bit when mapping memroy to user sapce */
+#define gcmkPAGED_MEMROY_PROT(x)    pgprot_writecombine(x)
+
+#if gcdNONPAGED_MEMORY_BUFFERABLE
+#define gcmkIOREMAP                 ioremap_wc
+#define gcmkNONPAGED_MEMROY_PROT(x) pgprot_writecombine(x)
+#elif !gcdNONPAGED_MEMORY_CACHEABLE
+#define gcmkIOREMAP                 ioremap_nocache
+#define gcmkNONPAGED_MEMROY_PROT(x) pgprot_noncached(x)
+#endif
+
+#define gcdSUPPRESS_OOM_MESSAGE 1
+
+#if gcdSUPPRESS_OOM_MESSAGE
+#define gcdNOWARN __GFP_NOWARN
+#else
+#define gcdNOWARN 0
+#endif
+
+/******************************************************************************\
+********************************** Structures **********************************
+\******************************************************************************/
+typedef struct _gcsIOMMU * gckIOMMU;
+
+typedef struct _gcsUSER_MAPPING * gcsUSER_MAPPING_PTR;
+typedef struct _gcsUSER_MAPPING
+{
+    /* Pointer to next mapping structure. */
+    gcsUSER_MAPPING_PTR         next;
+
+    /* Physical address of this mapping. */
+    gctUINT32                   physical;
+
+    /* Logical address of this mapping. */
+    gctPOINTER                  logical;
+
+    /* Number of bytes of this mapping. */
+    gctSIZE_T                   bytes;
+
+    /* Starting address of this mapping. */
+    gctINT8_PTR                 start;
+
+    /* Ending address of this mapping. */
+    gctINT8_PTR                 end;
+}
+gcsUSER_MAPPING;
+
+typedef struct _gcsINTEGER_DB * gcsINTEGER_DB_PTR;
+typedef struct _gcsINTEGER_DB
+{
+    struct idr                  idr;
+    spinlock_t                  lock;
+    gctINT                      curr;
+}
+gcsINTEGER_DB;
+
+struct _gckOS
+{
+    /* Object. */
+    gcsOBJECT                   object;
+
+    /* Pointer to device */
+    gckGALDEVICE                device;
+
+    /* Memory management */
+    gctPOINTER                  memoryLock;
+    gctPOINTER                  memoryMapLock;
+
+    struct _LINUX_MDL           *mdlHead;
+    struct _LINUX_MDL           *mdlTail;
+
+    /* Kernel process ID. */
+    gctUINT32                   kernelProcessID;
+
+    /* Signal management. */
+
+    /* Lock. */
+    gctPOINTER                  signalMutex;
+
+    /* signal id database. */
+    gcsINTEGER_DB               signalDB;
+
+#if gcdANDROID_NATIVE_FENCE_SYNC
+    /* Lock. */
+    gctPOINTER                  syncPointMutex;
+
+    /* sync point id database. */
+    gcsINTEGER_DB               syncPointDB;
+#endif
+
+    gcsUSER_MAPPING_PTR         userMap;
+    gctPOINTER                  debugLock;
+
+    /* workqueue for os timer. */
+    struct workqueue_struct *   workqueue;
+
+    /* Allocate extra page to avoid cache overflow */
+    struct page* paddingPage;
+
+    /* Detect unfreed allocation. */
+    atomic_t                    allocateCount;
+
+    struct list_head            allocatorList;
+
+    gcsDEBUGFS_DIR              allocatorDebugfsDir;
+
+    /* Lock for register access check. */
+    struct mutex                registerAccessLocks[gcdMAX_GPU_COUNT];
+
+    /* External power states. */
+    gctBOOL                     powerStates[gcdMAX_GPU_COUNT];
+
+    /* External clock states. */
+    gctBOOL                     clockStates[gcdMAX_GPU_COUNT];
+
+    /* IOMMU. */
+    gckIOMMU                    iommu;
+};
+
+typedef struct _gcsSIGNAL * gcsSIGNAL_PTR;
+typedef struct _gcsSIGNAL
+{
+    /* Kernel sync primitive. */
+    struct completion obj;
+
+    /* Manual reset flag. */
+    gctBOOL manualReset;
+
+    /* The reference counter. */
+    atomic_t ref;
+
+    /* The owner of the signal. */
+    gctHANDLE process;
+
+    gckHARDWARE hardware;
+
+    /* ID. */
+    gctUINT32 id;
+}
+gcsSIGNAL;
+
+#if gcdANDROID_NATIVE_FENCE_SYNC
+typedef struct _gcsSYNC_POINT * gcsSYNC_POINT_PTR;
+typedef struct _gcsSYNC_POINT
+{
+    /* The reference counter. */
+    atomic_t ref;
+
+    /* State. */
+    atomic_t state;
+
+    /* timeline. */
+    struct sync_timeline * timeline;
+
+    /* ID. */
+    gctUINT32 id;
+}
+gcsSYNC_POINT;
+#endif
+
+typedef struct _gcsPageInfo * gcsPageInfo_PTR;
+typedef struct _gcsPageInfo
+{
+    struct page **pages;
+    gctUINT32_PTR pageTable;
+    gctUINT32   extraPage;
+    gctUINT32 address;
+#if gcdPROCESS_ADDRESS_SPACE
+    gckMMU mmu;
+#endif
+}
+gcsPageInfo;
+
+typedef struct _gcsOSTIMER * gcsOSTIMER_PTR;
+typedef struct _gcsOSTIMER
+{
+    struct delayed_work     work;
+    gctTIMERFUNCTION        function;
+    gctPOINTER              data;
+} gcsOSTIMER;
+
+gceSTATUS
+gckOS_ImportAllocators(
+    gckOS Os
+    );
+
+gceSTATUS
+gckOS_FreeAllocators(
+    gckOS Os
+    );
+
+gceSTATUS
+_HandleOuterCache(
+    IN gckOS Os,
+    IN gctUINT32 Physical,
+    IN gctPOINTER Logical,
+    IN gctSIZE_T Bytes,
+    IN gceCACHEOPERATION Type
+    );
+
+gceSTATUS
+_ConvertLogical2Physical(
+    IN gckOS Os,
+    IN gctPOINTER Logical,
+    IN gctUINT32 ProcessID,
+    IN PLINUX_MDL Mdl,
+    OUT gctPHYS_ADDR_T * Physical
+    );
+
+gctSTRING
+_CreateKernelVirtualMapping(
+    IN PLINUX_MDL Mdl
+    );
+
+void
+_DestoryKernelVirtualMapping(
+    IN gctSTRING Addr
+    );
+
+void
+_UnmapUserLogical(
+    IN gctPOINTER Logical,
+    IN gctUINT32  Size
+    );
+
+static inline gctINT
+_GetProcessID(
+    void
+    )
+{
+#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,24)
+    return task_tgid_vnr(current);
+#else
+    return current->tgid;
+#endif
+}
+
+static inline struct page *
+_NonContiguousToPage(
+    IN struct page ** Pages,
+    IN gctUINT32 Index
+    )
+{
+    gcmkASSERT(Pages != gcvNULL);
+    return Pages[Index];
+}
+
+static inline unsigned long
+_NonContiguousToPfn(
+    IN struct page ** Pages,
+    IN gctUINT32 Index
+    )
+{
+    gcmkASSERT(Pages != gcvNULL);
+    return page_to_pfn(_NonContiguousToPage(Pages, Index));
+}
+
+static inline unsigned long
+_NonContiguousToPhys(
+    IN struct page ** Pages,
+    IN gctUINT32 Index
+    )
+{
+    gcmkASSERT(Pages != gcvNULL);
+    return page_to_phys(_NonContiguousToPage(Pages, Index));
+}
+
+#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,25)
+static inline int
+is_vmalloc_addr(
+    void *Addr
+    )
+{
+    unsigned long addr = (unsigned long)Addr;
+
+    return addr >= VMALLOC_START && addr < VMALLOC_END;
+}
+#endif
+
+#ifdef CONFIG_IOMMU_SUPPORT
+void
+gckIOMMU_Destory(
+    IN gckOS Os,
+    IN gckIOMMU Iommu
+    );
+
+gceSTATUS
+gckIOMMU_Construct(
+    IN gckOS Os,
+    OUT gckIOMMU * Iommu
+    );
+
+gceSTATUS
+gckIOMMU_Map(
+    IN gckIOMMU Iommu,
+    IN gctUINT32 DomainAddress,
+    IN gctUINT32 Physical,
+    IN gctUINT32 Bytes
+    );
+
+gceSTATUS
+gckIOMMU_Unmap(
+    IN gckIOMMU Iommu,
+    IN gctUINT32 DomainAddress,
+    IN gctUINT32 Bytes
+    );
+#endif
+
+#endif /* __gc_hal_kernel_linux_h_ */
diff --git a/src/hal/os/linux/kernel/gc_hal_kernel_math.c b/src/hal/os/linux/kernel/gc_hal_kernel_math.c
new file mode 100755
index 0000000..ae3c8a7
--- /dev/null
+++ b/src/hal/os/linux/kernel/gc_hal_kernel_math.c
@@ -0,0 +1,66 @@
+/****************************************************************************
+*
+*    The MIT License (MIT)
+*
+*    Copyright (c) 2014 Vivante Corporation
+*
+*    Permission is hereby granted, free of charge, to any person obtaining a
+*    copy of this software and associated documentation files (the "Software"),
+*    to deal in the Software without restriction, including without limitation
+*    the rights to use, copy, modify, merge, publish, distribute, sublicense,
+*    and/or sell copies of the Software, and to permit persons to whom the
+*    Software is furnished to do so, subject to the following conditions:
+*
+*    The above copyright notice and this permission notice shall be included in
+*    all copies or substantial portions of the Software.
+*
+*    THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+*    IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+*    FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+*    AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+*    LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+*    FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+*    DEALINGS IN THE SOFTWARE.
+*
+*****************************************************************************
+*
+*    The GPL License (GPL)
+*
+*    Copyright (C) 2014  Vivante Corporation
+*
+*    This program is free software; you can redistribute it and/or
+*    modify it under the terms of the GNU General Public License
+*    as published by the Free Software Foundation; either version 2
+*    of the License, or (at your option) any later version.
+*
+*    This program is distributed in the hope that it will be useful,
+*    but WITHOUT ANY WARRANTY; without even the implied warranty of
+*    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+*    GNU General Public License for more details.
+*
+*    You should have received a copy of the GNU General Public License
+*    along with this program; if not, write to the Free Software Foundation,
+*    Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+*
+*****************************************************************************
+*
+*    Note: This software is released under dual MIT and GPL licenses. A
+*    recipient may use this file under the terms of either the MIT license or
+*    GPL License. If you wish to use only one license not the other, you can
+*    indicate your decision by deleting one of the above license notices in your
+*    version of this file.
+*
+*****************************************************************************/
+
+
+#include "gc_hal_kernel_linux.h"
+
+gctINT
+gckMATH_ModuloInt(
+    IN gctINT X,
+    IN gctINT Y
+    )
+{
+    if(Y ==0) {return 0;}
+    else {return X % Y;}
+}
diff --git a/src/hal/os/linux/kernel/gc_hal_kernel_mutex.h b/src/hal/os/linux/kernel/gc_hal_kernel_mutex.h
new file mode 100755
index 0000000..7027d46
--- /dev/null
+++ b/src/hal/os/linux/kernel/gc_hal_kernel_mutex.h
@@ -0,0 +1,89 @@
+/****************************************************************************
+*
+*    The MIT License (MIT)
+*
+*    Copyright (c) 2014 Vivante Corporation
+*
+*    Permission is hereby granted, free of charge, to any person obtaining a
+*    copy of this software and associated documentation files (the "Software"),
+*    to deal in the Software without restriction, including without limitation
+*    the rights to use, copy, modify, merge, publish, distribute, sublicense,
+*    and/or sell copies of the Software, and to permit persons to whom the
+*    Software is furnished to do so, subject to the following conditions:
+*
+*    The above copyright notice and this permission notice shall be included in
+*    all copies or substantial portions of the Software.
+*
+*    THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+*    IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+*    FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+*    AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+*    LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+*    FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+*    DEALINGS IN THE SOFTWARE.
+*
+*****************************************************************************
+*
+*    The GPL License (GPL)
+*
+*    Copyright (C) 2014  Vivante Corporation
+*
+*    This program is free software; you can redistribute it and/or
+*    modify it under the terms of the GNU General Public License
+*    as published by the Free Software Foundation; either version 2
+*    of the License, or (at your option) any later version.
+*
+*    This program is distributed in the hope that it will be useful,
+*    but WITHOUT ANY WARRANTY; without even the implied warranty of
+*    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+*    GNU General Public License for more details.
+*
+*    You should have received a copy of the GNU General Public License
+*    along with this program; if not, write to the Free Software Foundation,
+*    Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+*
+*****************************************************************************
+*
+*    Note: This software is released under dual MIT and GPL licenses. A
+*    recipient may use this file under the terms of either the MIT license or
+*    GPL License. If you wish to use only one license not the other, you can
+*    indicate your decision by deleting one of the above license notices in your
+*    version of this file.
+*
+*****************************************************************************/
+
+
+#ifndef _gc_hal_kernel_mutex_h_
+#define _gc_hal_kernel_mutex_h_
+
+#include "gc_hal.h"
+#include <linux/mutex.h>
+
+/* Create a new mutex. */
+#define gckOS_CreateMutex(Os, Mutex)                                \
+({                                                                  \
+    gceSTATUS _status;                                              \
+    gcmkHEADER_ARG("Os=0x%X", Os);                                  \
+                                                                    \
+    /* Validate the arguments. */                                   \
+    gcmkVERIFY_OBJECT(Os, gcvOBJ_OS);                               \
+    gcmkVERIFY_ARGUMENT(Mutex != gcvNULL);                          \
+                                                                    \
+    /* Allocate the mutex structure. */                             \
+    _status = gckOS_Allocate(Os, gcmSIZEOF(struct mutex), Mutex);   \
+                                                                    \
+    if (gcmIS_SUCCESS(_status))                                     \
+    {                                                               \
+        /* Initialize the mutex. */                                 \
+        mutex_init(*(struct mutex **)Mutex);                        \
+    }                                                               \
+                                                                    \
+    /* Return status. */                                            \
+    gcmkFOOTER_ARG("*Mutex=0x%X", *(struct mutex **)Mutex);         \
+    _status;                                                        \
+})
+
+#endif
+
+
+
diff --git a/src/hal/os/linux/kernel/gc_hal_kernel_os.c b/src/hal/os/linux/kernel/gc_hal_kernel_os.c
new file mode 100755
index 0000000..5b97898
--- /dev/null
+++ b/src/hal/os/linux/kernel/gc_hal_kernel_os.c
@@ -0,0 +1,8225 @@
+/****************************************************************************
+*
+*    The MIT License (MIT)
+*
+*    Copyright (c) 2014 Vivante Corporation
+*
+*    Permission is hereby granted, free of charge, to any person obtaining a
+*    copy of this software and associated documentation files (the "Software"),
+*    to deal in the Software without restriction, including without limitation
+*    the rights to use, copy, modify, merge, publish, distribute, sublicense,
+*    and/or sell copies of the Software, and to permit persons to whom the
+*    Software is furnished to do so, subject to the following conditions:
+*
+*    The above copyright notice and this permission notice shall be included in
+*    all copies or substantial portions of the Software.
+*
+*    THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+*    IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+*    FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+*    AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+*    LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+*    FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+*    DEALINGS IN THE SOFTWARE.
+*
+*****************************************************************************
+*
+*    The GPL License (GPL)
+*
+*    Copyright (C) 2014  Vivante Corporation
+*
+*    This program is free software; you can redistribute it and/or
+*    modify it under the terms of the GNU General Public License
+*    as published by the Free Software Foundation; either version 2
+*    of the License, or (at your option) any later version.
+*
+*    This program is distributed in the hope that it will be useful,
+*    but WITHOUT ANY WARRANTY; without even the implied warranty of
+*    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+*    GNU General Public License for more details.
+*
+*    You should have received a copy of the GNU General Public License
+*    along with this program; if not, write to the Free Software Foundation,
+*    Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+*
+*****************************************************************************
+*
+*    Note: This software is released under dual MIT and GPL licenses. A
+*    recipient may use this file under the terms of either the MIT license or
+*    GPL License. If you wish to use only one license not the other, you can
+*    indicate your decision by deleting one of the above license notices in your
+*    version of this file.
+*
+*****************************************************************************/
+
+
+#include "gc_hal_kernel_linux.h"
+
+#include <linux/pagemap.h>
+#include <linux/seq_file.h>
+#include <linux/mman.h>
+#include <asm/atomic.h>
+#include <linux/dma-mapping.h>
+#include <linux/slab.h>
+#include <linux/workqueue.h>
+#include <linux/irqflags.h>
+#if LINUX_VERSION_CODE > KERNEL_VERSION(2,6,23)
+#include <linux/math64.h>
+#endif
+#include <linux/delay.h>
+
+#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,27)
+#include <linux/anon_inodes.h>
+#endif
+
+#if gcdANDROID_NATIVE_FENCE_SYNC
+#include <linux/file.h>
+#include "gc_hal_kernel_sync.h"
+#endif
+
+#define _GC_OBJ_ZONE    gcvZONE_OS
+
+#include "gc_hal_kernel_allocator.h"
+
+#define MEMORY_LOCK(os) \
+    gcmkVERIFY_OK(gckOS_AcquireMutex( \
+                                (os), \
+                                (os)->memoryLock, \
+                                gcvINFINITE))
+
+#define MEMORY_UNLOCK(os) \
+    gcmkVERIFY_OK(gckOS_ReleaseMutex((os), (os)->memoryLock))
+
+#define MEMORY_MAP_LOCK(os) \
+    gcmkVERIFY_OK(gckOS_AcquireMutex( \
+                                (os), \
+                                (os)->memoryMapLock, \
+                                gcvINFINITE))
+
+#define MEMORY_MAP_UNLOCK(os) \
+    gcmkVERIFY_OK(gckOS_ReleaseMutex((os), (os)->memoryMapLock))
+
+
+/******************************************************************************\
+******************************* Private Functions ******************************
+\******************************************************************************/
+static gctINT
+_GetThreadID(
+    void
+    )
+{
+#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,24)
+    return task_pid_vnr(current);
+#else
+    return current->pid;
+#endif
+}
+
+static PLINUX_MDL
+_CreateMdl(
+    void
+    )
+{
+    PLINUX_MDL  mdl;
+
+    gcmkHEADER();
+
+    mdl = (PLINUX_MDL)kzalloc(sizeof(struct _LINUX_MDL), GFP_KERNEL | gcdNOWARN);
+
+    gcmkFOOTER_ARG("0x%X", mdl);
+    return mdl;
+}
+
+static gceSTATUS
+_DestroyMdlMap(
+    IN PLINUX_MDL Mdl,
+    IN PLINUX_MDL_MAP MdlMap
+    );
+
+static gceSTATUS
+_DestroyMdl(
+    IN PLINUX_MDL Mdl
+    )
+{
+    PLINUX_MDL_MAP mdlMap, next;
+
+    gcmkHEADER_ARG("Mdl=0x%X", Mdl);
+
+    /* Verify the arguments. */
+    gcmkVERIFY_ARGUMENT(Mdl != gcvNULL);
+
+    mdlMap = Mdl->maps;
+
+    while (mdlMap != gcvNULL)
+    {
+        next = mdlMap->next;
+
+        gcmkVERIFY_OK(_DestroyMdlMap(Mdl, mdlMap));
+
+        mdlMap = next;
+    }
+
+    kfree(Mdl);
+
+    gcmkFOOTER_NO();
+    return gcvSTATUS_OK;
+}
+
+static PLINUX_MDL_MAP
+_CreateMdlMap(
+    IN PLINUX_MDL Mdl,
+    IN gctINT ProcessID
+    )
+{
+    PLINUX_MDL_MAP  mdlMap;
+
+    gcmkHEADER_ARG("Mdl=0x%X ProcessID=%d", Mdl, ProcessID);
+
+    mdlMap = (PLINUX_MDL_MAP)kmalloc(sizeof(struct _LINUX_MDL_MAP), GFP_KERNEL | gcdNOWARN);
+    if (mdlMap == gcvNULL)
+    {
+        gcmkFOOTER_NO();
+        return gcvNULL;
+    }
+
+    mdlMap->pid     = ProcessID;
+    mdlMap->vmaAddr = gcvNULL;
+    mdlMap->vma     = gcvNULL;
+    mdlMap->count   = 0;
+
+    mdlMap->next    = Mdl->maps;
+    Mdl->maps       = mdlMap;
+
+    gcmkFOOTER_ARG("0x%X", mdlMap);
+    return mdlMap;
+}
+
+static gceSTATUS
+_DestroyMdlMap(
+    IN PLINUX_MDL Mdl,
+    IN PLINUX_MDL_MAP MdlMap
+    )
+{
+    PLINUX_MDL_MAP  prevMdlMap;
+
+    gcmkHEADER_ARG("Mdl=0x%X MdlMap=0x%X", Mdl, MdlMap);
+
+    /* Verify the arguments. */
+    gcmkVERIFY_ARGUMENT(MdlMap != gcvNULL);
+    gcmkASSERT(Mdl->maps != gcvNULL);
+
+    if (Mdl->maps == MdlMap)
+    {
+        Mdl->maps = MdlMap->next;
+    }
+    else
+    {
+        prevMdlMap = Mdl->maps;
+
+        while (prevMdlMap->next != MdlMap)
+        {
+            prevMdlMap = prevMdlMap->next;
+
+            gcmkASSERT(prevMdlMap != gcvNULL);
+        }
+
+        prevMdlMap->next = MdlMap->next;
+    }
+
+    kfree(MdlMap);
+
+    gcmkFOOTER_NO();
+    return gcvSTATUS_OK;
+}
+
+extern PLINUX_MDL_MAP
+FindMdlMap(
+    IN PLINUX_MDL Mdl,
+    IN gctINT ProcessID
+    )
+{
+    PLINUX_MDL_MAP  mdlMap;
+
+    gcmkHEADER_ARG("Mdl=0x%X ProcessID=%d", Mdl, ProcessID);
+    if(Mdl == gcvNULL)
+    {
+        gcmkFOOTER_NO();
+        return gcvNULL;
+    }
+    mdlMap = Mdl->maps;
+
+    while (mdlMap != gcvNULL)
+    {
+        if (mdlMap->pid == ProcessID)
+        {
+            gcmkFOOTER_ARG("0x%X", mdlMap);
+            return mdlMap;
+        }
+
+        mdlMap = mdlMap->next;
+    }
+
+    gcmkFOOTER_NO();
+    return gcvNULL;
+}
+
+/*******************************************************************************
+** Integer Id Management.
+*/
+gceSTATUS
+_AllocateIntegerId(
+    IN gcsINTEGER_DB_PTR Database,
+    IN gctPOINTER KernelPointer,
+    OUT gctUINT32 *Id
+    )
+{
+    int result;
+    gctINT next;
+
+#if LINUX_VERSION_CODE >= KERNEL_VERSION(3, 9, 0)
+    idr_preload(GFP_KERNEL | gcdNOWARN);
+
+    spin_lock(&Database->lock);
+
+    next = (Database->curr + 1 <= 0) ? 1 : Database->curr + 1;
+
+    result = idr_alloc(&Database->idr, KernelPointer, next, 0, GFP_ATOMIC);
+
+    /* ID allocated should not be 0. */
+    gcmkASSERT(result != 0);
+
+    if (result > 0)
+    {
+        Database->curr = *Id = result;
+    }
+
+    spin_unlock(&Database->lock);
+
+    idr_preload_end();
+
+    if (result < 0)
+    {
+        return gcvSTATUS_OUT_OF_RESOURCES;
+    }
+#else
+again:
+    if (idr_pre_get(&Database->idr, GFP_KERNEL | gcdNOWARN) == 0)
+    {
+        return gcvSTATUS_OUT_OF_MEMORY;
+    }
+
+    spin_lock(&Database->lock);
+
+    next = (Database->curr + 1 <= 0) ? 1 : Database->curr + 1;
+
+    /* Try to get a id greater than 0. */
+    result = idr_get_new_above(&Database->idr, KernelPointer, next, Id);
+
+    if (!result)
+    {
+        Database->curr = *Id;
+    }
+
+    spin_unlock(&Database->lock);
+
+    if (result == -EAGAIN)
+    {
+        goto again;
+    }
+
+    if (result != 0)
+    {
+        return gcvSTATUS_OUT_OF_RESOURCES;
+    }
+#endif
+
+    return gcvSTATUS_OK;
+}
+
+gceSTATUS
+_QueryIntegerId(
+    IN gcsINTEGER_DB_PTR Database,
+    IN gctUINT32  Id,
+    OUT gctPOINTER * KernelPointer
+    )
+{
+    gctPOINTER pointer;
+
+    spin_lock(&Database->lock);
+
+    pointer = idr_find(&Database->idr, Id);
+
+    spin_unlock(&Database->lock);
+
+    if(pointer)
+    {
+        *KernelPointer = pointer;
+        return gcvSTATUS_OK;
+    }
+    else
+    {
+        gcmkTRACE_ZONE(
+                gcvLEVEL_ERROR, gcvZONE_OS,
+                "%s(%d) Id = %d is not found",
+                __FUNCTION__, __LINE__, Id);
+
+        return gcvSTATUS_NOT_FOUND;
+    }
+}
+
+gceSTATUS
+_DestroyIntegerId(
+    IN gcsINTEGER_DB_PTR Database,
+    IN gctUINT32 Id
+    )
+{
+    spin_lock(&Database->lock);
+
+    idr_remove(&Database->idr, Id);
+
+    spin_unlock(&Database->lock);
+
+    return gcvSTATUS_OK;
+}
+
+gceSTATUS
+_QueryProcessPageTable(
+    IN gctPOINTER Logical,
+    OUT gctPHYS_ADDR_T * Address
+    )
+{
+    spinlock_t *lock;
+    gctUINTPTR_T logical = (gctUINTPTR_T)Logical;
+    pgd_t *pgd;
+    pud_t *pud;
+    pmd_t *pmd;
+    pte_t *pte;
+
+    if (!current->mm)
+    {
+        return gcvSTATUS_NOT_FOUND;
+    }
+
+    pgd = pgd_offset(current->mm, logical);
+    if (pgd_none(*pgd) || pgd_bad(*pgd))
+    {
+        return gcvSTATUS_NOT_FOUND;
+    }
+
+    pud = pud_offset(pgd, logical);
+    if (pud_none(*pud) || pud_bad(*pud))
+    {
+        return gcvSTATUS_NOT_FOUND;
+    }
+
+    pmd = pmd_offset(pud, logical);
+    if (pmd_none(*pmd) || pmd_bad(*pmd))
+    {
+        return gcvSTATUS_NOT_FOUND;
+    }
+
+    pte = pte_offset_map_lock(current->mm, pmd, logical, &lock);
+    if (!pte)
+    {
+        return gcvSTATUS_NOT_FOUND;
+    }
+
+    if (!pte_present(*pte))
+    {
+        pte_unmap_unlock(pte, lock);
+        return gcvSTATUS_NOT_FOUND;
+    }
+
+    *Address = (pte_pfn(*pte) << PAGE_SHIFT) | (logical & ~PAGE_MASK);
+    pte_unmap_unlock(pte, lock);
+
+    return gcvSTATUS_OK;
+}
+
+#if !gcdCACHE_FUNCTION_UNIMPLEMENTED && defined(CONFIG_OUTER_CACHE)
+static inline gceSTATUS
+outer_func(
+    gceCACHEOPERATION Type,
+    unsigned long Start,
+    unsigned long End
+    )
+{
+    switch (Type)
+    {
+        case gcvCACHE_CLEAN:
+            outer_clean_range(Start, End);
+            break;
+        case gcvCACHE_INVALIDATE:
+            outer_inv_range(Start, End);
+            break;
+        case gcvCACHE_FLUSH:
+            outer_flush_range(Start, End);
+            break;
+        default:
+            return gcvSTATUS_INVALID_ARGUMENT;
+            break;
+    }
+    return gcvSTATUS_OK;
+}
+
+#if gcdENABLE_OUTER_CACHE_PATCH
+/*******************************************************************************
+**  _HandleOuterCache
+**
+**  Handle the outer cache for the specified addresses.
+**
+**  ARGUMENTS:
+**
+**      gckOS Os
+**          Pointer to gckOS object.
+**
+**      gctPOINTER Physical
+**          Physical address to flush.
+**
+**      gctPOINTER Logical
+**          Logical address to flush.
+**
+**      gctSIZE_T Bytes
+**          Size of the address range in bytes to flush.
+**
+**      gceOUTERCACHE_OPERATION Type
+**          Operation need to be execute.
+*/
+gceSTATUS
+_HandleOuterCache(
+    IN gckOS Os,
+    IN gctUINT32 Physical,
+    IN gctPOINTER Logical,
+    IN gctSIZE_T Bytes,
+    IN gceCACHEOPERATION Type
+    )
+{
+    gceSTATUS status;
+    gctPHYS_ADDR_T paddr;
+    gctPOINTER vaddr;
+    gctUINT32 offset, bytes, left;
+
+    gcmkHEADER_ARG("Os=0x%X Logical=0x%X Bytes=%lu",
+                   Os, Logical, Bytes);
+
+    if (Physical != gcvINVALID_ADDRESS)
+    {
+        /* Non paged memory or gcvPOOL_USER surface */
+        paddr = (unsigned long) Physical;
+        gcmkONERROR(outer_func(Type, paddr, paddr + Bytes));
+    }
+    else
+    {
+        /* Non contiguous virtual memory */
+        vaddr = Logical;
+        left = Bytes;
+
+        while (left)
+        {
+            /* Handle (part of) current page. */
+            offset = (gctUINTPTR_T)vaddr & ~PAGE_MASK;
+
+            bytes = gcmMIN(left, PAGE_SIZE - offset);
+
+            gcmkONERROR(_QueryProcessPageTable(vaddr, &paddr));
+            gcmkONERROR(outer_func(Type, paddr, paddr + bytes));
+
+            vaddr = (gctUINT8_PTR)vaddr + bytes;
+            left -= bytes;
+        }
+    }
+
+    mb();
+
+    /* Success. */
+    gcmkFOOTER_NO();
+    return gcvSTATUS_OK;
+
+OnError:
+    /* Return the status. */
+    gcmkFOOTER();
+    return status;
+}
+#endif
+#endif
+
+gctBOOL
+_AllowAccess(
+    IN gckOS Os,
+    IN gceCORE Core,
+    IN gctUINT32 Address
+    )
+{
+    gctUINT32 data;
+
+    /* Check external clock state. */
+    if (Os->clockStates[Core] == gcvFALSE)
+    {
+        gcmkPRINT("[galcore]: %s(%d) External clock off", __FUNCTION__, __LINE__);
+        return gcvFALSE;
+    }
+
+    /* Check internal clock state. */
+    if (Address == 0)
+    {
+        return gcvTRUE;
+    }
+
+    {
+        data = readl((gctUINT8 *)Os->device->registerBases[Core] + 0x0);
+    }
+
+    if ((data & 0x3) == 0x3)
+    {
+        gcmkPRINT("[galcore]: %s(%d) Internal clock off", __FUNCTION__, __LINE__);
+        return gcvFALSE;
+    }
+
+    return gcvTRUE;
+}
+
+static gceSTATUS
+_ShrinkMemory(
+    IN gckOS Os
+    )
+{
+    gcsPLATFORM * platform;
+
+    gcmkHEADER_ARG("Os=0x%X", Os);
+    gcmkVERIFY_OBJECT(Os, gcvOBJ_OS);
+
+    platform = Os->device->platform;
+
+    if (platform && platform->ops->shrinkMemory)
+    {
+        platform->ops->shrinkMemory(platform);
+    }
+    else
+    {
+        gcmkFOOTER_NO();
+        return gcvSTATUS_NOT_SUPPORTED;
+    }
+
+    gcmkFOOTER_NO();
+    return gcvSTATUS_OK;
+}
+
+/*******************************************************************************
+**
+**  gckOS_Construct
+**
+**  Construct a new gckOS object.
+**
+**  INPUT:
+**
+**      gctPOINTER Context
+**          Pointer to the gckGALDEVICE class.
+**
+**  OUTPUT:
+**
+**      gckOS * Os
+**          Pointer to a variable that will hold the pointer to the gckOS object.
+*/
+gceSTATUS
+gckOS_Construct(
+    IN gctPOINTER Context,
+    OUT gckOS * Os
+    )
+{
+    gckOS os;
+    gceSTATUS status;
+    gctINT i;
+
+    gcmkHEADER_ARG("Context=0x%X", Context);
+
+    /* Verify the arguments. */
+    gcmkVERIFY_ARGUMENT(Os != gcvNULL);
+
+    /* Allocate the gckOS object. */
+    os = (gckOS) kmalloc(gcmSIZEOF(struct _gckOS), GFP_KERNEL | gcdNOWARN);
+
+    if (os == gcvNULL)
+    {
+        /* Out of memory. */
+        gcmkFOOTER_ARG("status=%d", gcvSTATUS_OUT_OF_MEMORY);
+        return gcvSTATUS_OUT_OF_MEMORY;
+    }
+
+    /* Zero the memory. */
+    gckOS_ZeroMemory(os, gcmSIZEOF(struct _gckOS));
+
+    /* Initialize the gckOS object. */
+    os->object.type = gcvOBJ_OS;
+
+    /* Set device device. */
+    os->device = Context;
+
+    /* Set allocateCount to 0, gckOS_Allocate has not been used yet. */
+    atomic_set(&os->allocateCount, 0);
+
+    /* Initialize the memory lock. */
+    gcmkONERROR(gckOS_CreateMutex(os, &os->memoryLock));
+    gcmkONERROR(gckOS_CreateMutex(os, &os->memoryMapLock));
+
+    /* Create debug lock mutex. */
+    gcmkONERROR(gckOS_CreateMutex(os, &os->debugLock));
+
+    os->mdlHead = os->mdlTail = gcvNULL;
+
+    /* Get the kernel process ID. */
+    gcmkONERROR(gckOS_GetProcessID(&os->kernelProcessID));
+
+    /*
+     * Initialize the signal manager.
+     */
+
+    /* Initialize mutex. */
+    gcmkONERROR(gckOS_CreateMutex(os, &os->signalMutex));
+
+    /* Initialize signal id database lock. */
+    spin_lock_init(&os->signalDB.lock);
+
+    /* Initialize signal id database. */
+    idr_init(&os->signalDB.idr);
+
+#if gcdANDROID_NATIVE_FENCE_SYNC
+    /*
+     * Initialize the sync point manager.
+     */
+
+    /* Initialize mutex. */
+    gcmkONERROR(gckOS_CreateMutex(os, &os->syncPointMutex));
+
+    /* Initialize sync point id database lock. */
+    spin_lock_init(&os->syncPointDB.lock);
+
+    /* Initialize sync point id database. */
+    idr_init(&os->syncPointDB.idr);
+#endif
+
+    /* Create a workqueue for os timer. */
+    os->workqueue = create_singlethread_workqueue("galcore workqueue");
+
+    if (os->workqueue == gcvNULL)
+    {
+        /* Out of memory. */
+        gcmkONERROR(gcvSTATUS_OUT_OF_MEMORY);
+    }
+
+    os->paddingPage = alloc_page(GFP_KERNEL | __GFP_HIGHMEM | gcdNOWARN);
+    if (os->paddingPage == gcvNULL)
+    {
+        /* Out of memory. */
+        gcmkONERROR(gcvSTATUS_OUT_OF_MEMORY);
+    }
+    else
+    {
+        SetPageReserved(os->paddingPage);
+    }
+
+    for (i = 0; i < gcdMAX_GPU_COUNT; i++)
+    {
+        mutex_init(&os->registerAccessLocks[i]);
+    }
+
+    gckOS_ImportAllocators(os);
+
+#ifdef CONFIG_IOMMU_SUPPORT
+    if (((gckGALDEVICE)(os->device))->mmu == gcvFALSE)
+    {
+        /* Only use IOMMU when internal MMU is not enabled. */
+        status = gckIOMMU_Construct(os, &os->iommu);
+
+        if (gcmIS_ERROR(status))
+        {
+            gcmkTRACE_ZONE(
+                gcvLEVEL_INFO, gcvZONE_OS,
+                "%s(%d): Fail to setup IOMMU",
+                __FUNCTION__, __LINE__
+                );
+        }
+    }
+#endif
+
+    /* Return pointer to the gckOS object. */
+    *Os = os;
+
+    /* Success. */
+    gcmkFOOTER_ARG("*Os=0x%X", *Os);
+    return gcvSTATUS_OK;
+
+OnError:
+
+#if gcdANDROID_NATIVE_FENCE_SYNC
+    if (os->syncPointMutex != gcvNULL)
+    {
+        gcmkVERIFY_OK(
+            gckOS_DeleteMutex(os, os->syncPointMutex));
+    }
+#endif
+
+    if (os->signalMutex != gcvNULL)
+    {
+        gcmkVERIFY_OK(
+            gckOS_DeleteMutex(os, os->signalMutex));
+    }
+
+    if (os->memoryMapLock != gcvNULL)
+    {
+        gcmkVERIFY_OK(
+            gckOS_DeleteMutex(os, os->memoryMapLock));
+    }
+
+    if (os->memoryLock != gcvNULL)
+    {
+        gcmkVERIFY_OK(
+            gckOS_DeleteMutex(os, os->memoryLock));
+    }
+
+    if (os->debugLock != gcvNULL)
+    {
+        gcmkVERIFY_OK(
+            gckOS_DeleteMutex(os, os->debugLock));
+    }
+
+    if (os->workqueue != gcvNULL)
+    {
+        destroy_workqueue(os->workqueue);
+    }
+
+    kfree(os);
+
+    /* Return the error. */
+    gcmkFOOTER();
+    return status;
+}
+
+/*******************************************************************************
+**
+**  gckOS_Destroy
+**
+**  Destroy an gckOS object.
+**
+**  INPUT:
+**
+**      gckOS Os
+**          Pointer to an gckOS object that needs to be destroyed.
+**
+**  OUTPUT:
+**
+**      Nothing.
+*/
+gceSTATUS
+gckOS_Destroy(
+    IN gckOS Os
+    )
+{
+    gcmkHEADER_ARG("Os=0x%X", Os);
+
+    /* Verify the arguments. */
+    gcmkVERIFY_OBJECT(Os, gcvOBJ_OS);
+
+    if (Os->paddingPage != gcvNULL)
+    {
+        ClearPageReserved(Os->paddingPage);
+        __free_page(Os->paddingPage);
+        Os->paddingPage = gcvNULL;
+    }
+
+#if gcdANDROID_NATIVE_FENCE_SYNC
+    /*
+     * Destroy the sync point manager.
+     */
+
+    /* Destroy the mutex. */
+    gcmkVERIFY_OK(gckOS_DeleteMutex(Os, Os->syncPointMutex));
+#endif
+
+    /*
+     * Destroy the signal manager.
+     */
+
+    /* Destroy the mutex. */
+    gcmkVERIFY_OK(gckOS_DeleteMutex(Os, Os->signalMutex));
+
+    /* Destroy the memory lock. */
+    gcmkVERIFY_OK(gckOS_DeleteMutex(Os, Os->memoryMapLock));
+    gcmkVERIFY_OK(gckOS_DeleteMutex(Os, Os->memoryLock));
+
+    /* Destroy debug lock mutex. */
+    gcmkVERIFY_OK(gckOS_DeleteMutex(Os, Os->debugLock));
+
+    /* Wait for all works done. */
+    flush_workqueue(Os->workqueue);
+
+    /* Destory work queue. */
+    destroy_workqueue(Os->workqueue);
+
+    gckOS_FreeAllocators(Os);
+
+#ifdef CONFIG_IOMMU_SUPPORT
+    if (Os->iommu)
+    {
+        gckIOMMU_Destory(Os, Os->iommu);
+    }
+#endif
+
+    /* Flush the debug cache. */
+    gcmkDEBUGFLUSH(~0U);
+
+    /* Mark the gckOS object as unknown. */
+    Os->object.type = gcvOBJ_UNKNOWN;
+
+
+    /* Free the gckOS object. */
+    kfree(Os);
+
+    /* Success. */
+    gcmkFOOTER_NO();
+    return gcvSTATUS_OK;
+}
+
+gceSTATUS
+gckOS_CreateKernelVirtualMapping(
+    IN gckOS Os,
+    IN gctPHYS_ADDR Physical,
+    IN gctSIZE_T Bytes,
+    OUT gctPOINTER * Logical,
+    OUT gctSIZE_T * PageCount
+    )
+{
+    gceSTATUS status;
+    PLINUX_MDL mdl = (PLINUX_MDL)Physical;
+    gckALLOCATOR allocator = mdl->allocator;
+
+    gcmkHEADER();
+
+    *PageCount = mdl->numPages;
+
+    gcmkONERROR(allocator->ops->MapKernel(allocator, mdl, Logical));
+
+    gcmkFOOTER_NO();
+    return gcvSTATUS_OK;
+
+OnError:
+    gcmkFOOTER();
+    return status;
+}
+
+gceSTATUS
+gckOS_DestroyKernelVirtualMapping(
+    IN gckOS Os,
+    IN gctPHYS_ADDR Physical,
+    IN gctSIZE_T Bytes,
+    IN gctPOINTER Logical
+    )
+{
+    PLINUX_MDL mdl = (PLINUX_MDL)Physical;
+    gckALLOCATOR allocator = mdl->allocator;
+
+    gcmkHEADER();
+
+    allocator->ops->UnmapKernel(allocator, mdl, Logical);
+
+    gcmkFOOTER_NO();
+    return gcvSTATUS_OK;
+}
+
+gceSTATUS
+gckOS_CreateUserVirtualMapping(
+    IN gckOS Os,
+    IN gctPHYS_ADDR Physical,
+    IN gctSIZE_T Bytes,
+    OUT gctPOINTER * Logical,
+    OUT gctSIZE_T * PageCount
+    )
+{
+    return gckOS_LockPages(Os, Physical, Bytes, gcvFALSE, Logical, PageCount);
+}
+
+gceSTATUS
+gckOS_DestroyUserVirtualMapping(
+    IN gckOS Os,
+    IN gctPHYS_ADDR Physical,
+    IN gctSIZE_T Bytes,
+    IN gctPOINTER Logical
+    )
+{
+    return gckOS_UnlockPages(Os, Physical, Bytes, Logical);
+}
+
+/*******************************************************************************
+**
+**  gckOS_Allocate
+**
+**  Allocate memory.
+**
+**  INPUT:
+**
+**      gckOS Os
+**          Pointer to an gckOS object.
+**
+**      gctSIZE_T Bytes
+**          Number of bytes to allocate.
+**
+**  OUTPUT:
+**
+**      gctPOINTER * Memory
+**          Pointer to a variable that will hold the allocated memory location.
+*/
+gceSTATUS
+gckOS_Allocate(
+    IN gckOS Os,
+    IN gctSIZE_T Bytes,
+    OUT gctPOINTER * Memory
+    )
+{
+    gceSTATUS status;
+
+    gcmkHEADER_ARG("Os=0x%X Bytes=%lu", Os, Bytes);
+
+    /* Verify the arguments. */
+    gcmkVERIFY_OBJECT(Os, gcvOBJ_OS);
+    gcmkVERIFY_ARGUMENT(Bytes > 0);
+    gcmkVERIFY_ARGUMENT(Memory != gcvNULL);
+
+    gcmkONERROR(gckOS_AllocateMemory(Os, Bytes, Memory));
+
+    /* Success. */
+    gcmkFOOTER_ARG("*Memory=0x%X", *Memory);
+    return gcvSTATUS_OK;
+
+OnError:
+    /* Return the status. */
+    gcmkFOOTER();
+    return status;
+}
+
+/*******************************************************************************
+**
+**  gckOS_Free
+**
+**  Free allocated memory.
+**
+**  INPUT:
+**
+**      gckOS Os
+**          Pointer to an gckOS object.
+**
+**      gctPOINTER Memory
+**          Pointer to memory allocation to free.
+**
+**  OUTPUT:
+**
+**      Nothing.
+*/
+gceSTATUS
+gckOS_Free(
+    IN gckOS Os,
+    IN gctPOINTER Memory
+    )
+{
+    gceSTATUS status;
+
+    gcmkHEADER_ARG("Os=0x%X Memory=0x%X", Os, Memory);
+
+    /* Verify the arguments. */
+    gcmkVERIFY_OBJECT(Os, gcvOBJ_OS);
+    gcmkVERIFY_ARGUMENT(Memory != gcvNULL);
+
+    gcmkONERROR(gckOS_FreeMemory(Os, Memory));
+
+    /* Success. */
+    gcmkFOOTER_NO();
+    return gcvSTATUS_OK;
+
+OnError:
+    /* Return the status. */
+    gcmkFOOTER();
+    return status;
+}
+
+/*******************************************************************************
+**
+**  gckOS_AllocateMemory
+**
+**  Allocate memory wrapper.
+**
+**  INPUT:
+**
+**      gctSIZE_T Bytes
+**          Number of bytes to allocate.
+**
+**  OUTPUT:
+**
+**      gctPOINTER * Memory
+**          Pointer to a variable that will hold the allocated memory location.
+*/
+gceSTATUS
+gckOS_AllocateMemory(
+    IN gckOS Os,
+    IN gctSIZE_T Bytes,
+    OUT gctPOINTER * Memory
+    )
+{
+    gctPOINTER memory;
+    gceSTATUS status;
+
+    gcmkHEADER_ARG("Os=0x%X Bytes=%lu", Os, Bytes);
+
+    /* Verify the arguments. */
+    gcmkVERIFY_ARGUMENT(Bytes > 0);
+    gcmkVERIFY_ARGUMENT(Memory != gcvNULL);
+
+    if (Bytes > PAGE_SIZE)
+    {
+        memory = (gctPOINTER) vmalloc(Bytes);
+    }
+    else
+    {
+        memory = (gctPOINTER) kmalloc(Bytes, GFP_KERNEL | gcdNOWARN);
+    }
+
+    if (memory == gcvNULL)
+    {
+        /* Out of memory. */
+        gcmkONERROR(gcvSTATUS_OUT_OF_MEMORY);
+    }
+
+    /* Increase count. */
+    atomic_inc(&Os->allocateCount);
+
+    /* Return pointer to the memory allocation. */
+    *Memory = memory;
+
+    /* Success. */
+    gcmkFOOTER_ARG("*Memory=0x%X", *Memory);
+    return gcvSTATUS_OK;
+
+OnError:
+    /* Return the status. */
+    gcmkFOOTER();
+    return status;
+}
+
+/*******************************************************************************
+**
+**  gckOS_FreeMemory
+**
+**  Free allocated memory wrapper.
+**
+**  INPUT:
+**
+**      gctPOINTER Memory
+**          Pointer to memory allocation to free.
+**
+**  OUTPUT:
+**
+**      Nothing.
+*/
+gceSTATUS
+gckOS_FreeMemory(
+    IN gckOS Os,
+    IN gctPOINTER Memory
+    )
+{
+    gcmkHEADER_ARG("Memory=0x%X", Memory);
+
+    /* Verify the arguments. */
+    gcmkVERIFY_ARGUMENT(Memory != gcvNULL);
+
+    /* Free the memory from the OS pool. */
+    if (is_vmalloc_addr(Memory))
+    {
+        vfree(Memory);
+    }
+    else
+    {
+        kfree(Memory);
+    }
+
+    /* Decrease count. */
+    atomic_dec(&Os->allocateCount);
+
+    /* Success. */
+    gcmkFOOTER_NO();
+    return gcvSTATUS_OK;
+}
+
+/*******************************************************************************
+**
+**  gckOS_MapMemory
+**
+**  Map physical memory into the current process.
+**
+**  INPUT:
+**
+**      gckOS Os
+**          Pointer to an gckOS object.
+**
+**      gctPHYS_ADDR Physical
+**          Start of physical address memory.
+**
+**      gctSIZE_T Bytes
+**          Number of bytes to map.
+**
+**  OUTPUT:
+**
+**      gctPOINTER * Memory
+**          Pointer to a variable that will hold the logical address of the
+**          mapped memory.
+*/
+gceSTATUS
+gckOS_MapMemory(
+    IN gckOS Os,
+    IN gctPHYS_ADDR Physical,
+    IN gctSIZE_T Bytes,
+    OUT gctPOINTER * Logical
+    )
+{
+    PLINUX_MDL_MAP  mdlMap;
+    PLINUX_MDL      mdl = (PLINUX_MDL)Physical;
+
+    gcmkHEADER_ARG("Os=0x%X Physical=0x%X Bytes=%lu", Os, Physical, Bytes);
+
+    /* Verify the arguments. */
+    gcmkVERIFY_OBJECT(Os, gcvOBJ_OS);
+    gcmkVERIFY_ARGUMENT(Physical != 0);
+    gcmkVERIFY_ARGUMENT(Bytes > 0);
+    gcmkVERIFY_ARGUMENT(Logical != gcvNULL);
+
+    MEMORY_LOCK(Os);
+
+    mdlMap = FindMdlMap(mdl, _GetProcessID());
+
+    if (mdlMap == gcvNULL)
+    {
+        mdlMap = _CreateMdlMap(mdl, _GetProcessID());
+
+        if (mdlMap == gcvNULL)
+        {
+            MEMORY_UNLOCK(Os);
+
+            gcmkFOOTER_ARG("status=%d", gcvSTATUS_OUT_OF_MEMORY);
+            return gcvSTATUS_OUT_OF_MEMORY;
+        }
+    }
+
+    if (mdlMap->vmaAddr == gcvNULL)
+    {
+#if LINUX_VERSION_CODE >= KERNEL_VERSION(3, 4, 0)
+        mdlMap->vmaAddr = (char *)vm_mmap(gcvNULL,
+                    0L,
+                    mdl->numPages * PAGE_SIZE,
+                    PROT_READ | PROT_WRITE,
+                    MAP_SHARED,
+                    0);
+#else
+        down_write(&current->mm->mmap_sem);
+
+        mdlMap->vmaAddr = (char *)do_mmap_pgoff(gcvNULL,
+                    0L,
+                    mdl->numPages * PAGE_SIZE,
+                    PROT_READ | PROT_WRITE,
+                    MAP_SHARED,
+                    0);
+
+        up_write(&current->mm->mmap_sem);
+#endif
+
+        if (IS_ERR(mdlMap->vmaAddr))
+        {
+            gcmkTRACE(
+                gcvLEVEL_ERROR,
+                "%s(%d): do_mmap_pgoff error",
+                __FUNCTION__, __LINE__
+                );
+
+            gcmkTRACE(
+                gcvLEVEL_ERROR,
+                "%s(%d): mdl->numPages: %d mdl->vmaAddr: 0x%X",
+                __FUNCTION__, __LINE__,
+                mdl->numPages,
+                mdlMap->vmaAddr
+                );
+
+            mdlMap->vmaAddr = gcvNULL;
+
+            MEMORY_UNLOCK(Os);
+
+            gcmkFOOTER_ARG("status=%d", gcvSTATUS_OUT_OF_MEMORY);
+            return gcvSTATUS_OUT_OF_MEMORY;
+        }
+
+        down_write(&current->mm->mmap_sem);
+
+        mdlMap->vma = find_vma(current->mm, (unsigned long)mdlMap->vmaAddr);
+
+        if (!mdlMap->vma)
+        {
+            gcmkTRACE(
+                gcvLEVEL_ERROR,
+                "%s(%d): find_vma error.",
+                __FUNCTION__, __LINE__
+                );
+
+            mdlMap->vmaAddr = gcvNULL;
+
+            up_write(&current->mm->mmap_sem);
+
+            MEMORY_UNLOCK(Os);
+
+            gcmkFOOTER_ARG("status=%d", gcvSTATUS_OUT_OF_RESOURCES);
+            return gcvSTATUS_OUT_OF_RESOURCES;
+        }
+
+#ifndef NO_DMA_COHERENT
+        if (dma_mmap_writecombine(gcvNULL,
+                    mdlMap->vma,
+                    mdl->addr,
+                    mdl->dmaHandle,
+                    mdl->numPages * PAGE_SIZE) < 0)
+        {
+            up_write(&current->mm->mmap_sem);
+
+            gcmkTRACE(
+                gcvLEVEL_ERROR,
+                "%s(%d): dma_mmap_coherent error.",
+                __FUNCTION__, __LINE__
+                );
+
+            mdlMap->vmaAddr = gcvNULL;
+
+            MEMORY_UNLOCK(Os);
+
+            gcmkFOOTER_ARG("status=%d", gcvSTATUS_OUT_OF_RESOURCES);
+            return gcvSTATUS_OUT_OF_RESOURCES;
+        }
+#else
+#if !gcdPAGED_MEMORY_CACHEABLE
+        mdlMap->vma->vm_page_prot = gcmkPAGED_MEMROY_PROT(mdlMap->vma->vm_page_prot);
+        mdlMap->vma->vm_flags |= gcdVM_FLAGS;
+#   endif
+        mdlMap->vma->vm_pgoff = 0;
+
+        if (remap_pfn_range(mdlMap->vma,
+                            mdlMap->vma->vm_start,
+                            mdl->dmaHandle >> PAGE_SHIFT,
+                            mdl->numPages*PAGE_SIZE,
+                            mdlMap->vma->vm_page_prot) < 0)
+        {
+            up_write(&current->mm->mmap_sem);
+
+            gcmkTRACE(
+                gcvLEVEL_ERROR,
+                "%s(%d): remap_pfn_range error.",
+                __FUNCTION__, __LINE__
+                );
+
+            mdlMap->vmaAddr = gcvNULL;
+
+            MEMORY_UNLOCK(Os);
+
+            gcmkFOOTER_ARG("status=%d", gcvSTATUS_OUT_OF_RESOURCES);
+            return gcvSTATUS_OUT_OF_RESOURCES;
+        }
+#endif
+
+        up_write(&current->mm->mmap_sem);
+    }
+
+    MEMORY_UNLOCK(Os);
+
+    *Logical = mdlMap->vmaAddr;
+
+    gcmkFOOTER_ARG("*Logical=0x%X", *Logical);
+    return gcvSTATUS_OK;
+}
+
+/*******************************************************************************
+**
+**  gckOS_UnmapMemory
+**
+**  Unmap physical memory out of the current process.
+**
+**  INPUT:
+**
+**      gckOS Os
+**          Pointer to an gckOS object.
+**
+**      gctPHYS_ADDR Physical
+**          Start of physical address memory.
+**
+**      gctSIZE_T Bytes
+**          Number of bytes to unmap.
+**
+**      gctPOINTER Memory
+**          Pointer to a previously mapped memory region.
+**
+**  OUTPUT:
+**
+**      Nothing.
+*/
+gceSTATUS
+gckOS_UnmapMemory(
+    IN gckOS Os,
+    IN gctPHYS_ADDR Physical,
+    IN gctSIZE_T Bytes,
+    IN gctPOINTER Logical
+    )
+{
+    gcmkHEADER_ARG("Os=0x%X Physical=0x%X Bytes=%lu Logical=0x%X",
+                   Os, Physical, Bytes, Logical);
+
+    /* Verify the arguments. */
+    gcmkVERIFY_OBJECT(Os, gcvOBJ_OS);
+    gcmkVERIFY_ARGUMENT(Physical != 0);
+    gcmkVERIFY_ARGUMENT(Bytes > 0);
+    gcmkVERIFY_ARGUMENT(Logical != gcvNULL);
+
+    gckOS_UnmapMemoryEx(Os, Physical, Bytes, Logical, _GetProcessID());
+
+    /* Success. */
+    gcmkFOOTER_NO();
+    return gcvSTATUS_OK;
+}
+
+
+/*******************************************************************************
+**
+**  gckOS_UnmapMemoryEx
+**
+**  Unmap physical memory in the specified process.
+**
+**  INPUT:
+**
+**      gckOS Os
+**          Pointer to an gckOS object.
+**
+**      gctPHYS_ADDR Physical
+**          Start of physical address memory.
+**
+**      gctSIZE_T Bytes
+**          Number of bytes to unmap.
+**
+**      gctPOINTER Memory
+**          Pointer to a previously mapped memory region.
+**
+**      gctUINT32 PID
+**          Pid of the process that opened the device and mapped this memory.
+**
+**  OUTPUT:
+**
+**      Nothing.
+*/
+gceSTATUS
+gckOS_UnmapMemoryEx(
+    IN gckOS Os,
+    IN gctPHYS_ADDR Physical,
+    IN gctSIZE_T Bytes,
+    IN gctPOINTER Logical,
+    IN gctUINT32 PID
+    )
+{
+    PLINUX_MDL_MAP          mdlMap;
+    PLINUX_MDL              mdl = (PLINUX_MDL)Physical;
+
+    gcmkHEADER_ARG("Os=0x%X Physical=0x%X Bytes=%lu Logical=0x%X PID=%d",
+                   Os, Physical, Bytes, Logical, PID);
+
+    /* Verify the arguments. */
+    gcmkVERIFY_OBJECT(Os, gcvOBJ_OS);
+    gcmkVERIFY_ARGUMENT(Physical != 0);
+    gcmkVERIFY_ARGUMENT(Bytes > 0);
+    gcmkVERIFY_ARGUMENT(Logical != gcvNULL);
+    gcmkVERIFY_ARGUMENT(PID != 0);
+
+    MEMORY_LOCK(Os);
+
+    if (Logical)
+    {
+        mdlMap = FindMdlMap(mdl, PID);
+
+        if (mdlMap == gcvNULL || mdlMap->vmaAddr == gcvNULL)
+        {
+            MEMORY_UNLOCK(Os);
+
+            gcmkFOOTER_ARG("status=%d", gcvSTATUS_INVALID_ARGUMENT);
+            return gcvSTATUS_INVALID_ARGUMENT;
+        }
+
+        _UnmapUserLogical(mdlMap->vmaAddr, mdl->numPages * PAGE_SIZE);
+
+        gcmkVERIFY_OK(_DestroyMdlMap(mdl, mdlMap));
+    }
+
+    MEMORY_UNLOCK(Os);
+
+    /* Success. */
+    gcmkFOOTER_NO();
+    return gcvSTATUS_OK;
+}
+
+/*******************************************************************************
+**
+**  gckOS_UnmapUserLogical
+**
+**  Unmap user logical memory out of physical memory.
+**
+**  INPUT:
+**
+**      gckOS Os
+**          Pointer to an gckOS object.
+**
+**      gctPHYS_ADDR Physical
+**          Start of physical address memory.
+**
+**      gctSIZE_T Bytes
+**          Number of bytes to unmap.
+**
+**      gctPOINTER Memory
+**          Pointer to a previously mapped memory region.
+**
+**  OUTPUT:
+**
+**      Nothing.
+*/
+gceSTATUS
+gckOS_UnmapUserLogical(
+    IN gckOS Os,
+    IN gctPHYS_ADDR Physical,
+    IN gctSIZE_T Bytes,
+    IN gctPOINTER Logical
+    )
+{
+    gcmkHEADER_ARG("Os=0x%X Physical=0x%X Bytes=%lu Logical=0x%X",
+                   Os, Physical, Bytes, Logical);
+
+    /* Verify the arguments. */
+    gcmkVERIFY_OBJECT(Os, gcvOBJ_OS);
+    gcmkVERIFY_ARGUMENT(Physical != 0);
+    gcmkVERIFY_ARGUMENT(Bytes > 0);
+    gcmkVERIFY_ARGUMENT(Logical != gcvNULL);
+
+    gckOS_UnmapMemory(Os, Physical, Bytes, Logical);
+
+    /* Success. */
+    gcmkFOOTER_NO();
+    return gcvSTATUS_OK;
+
+}
+
+/*******************************************************************************
+**
+**  gckOS_AllocateNonPagedMemory
+**
+**  Allocate a number of pages from non-paged memory.
+**
+**  INPUT:
+**
+**      gckOS Os
+**          Pointer to an gckOS object.
+**
+**      gctBOOL InUserSpace
+**          gcvTRUE if the pages need to be mapped into user space.
+**
+**      gctSIZE_T * Bytes
+**          Pointer to a variable that holds the number of bytes to allocate.
+**
+**  OUTPUT:
+**
+**      gctSIZE_T * Bytes
+**          Pointer to a variable that hold the number of bytes allocated.
+**
+**      gctPHYS_ADDR * Physical
+**          Pointer to a variable that will hold the physical address of the
+**          allocation.
+**
+**      gctPOINTER * Logical
+**          Pointer to a variable that will hold the logical address of the
+**          allocation.
+*/
+gceSTATUS
+gckOS_AllocateNonPagedMemory(
+    IN gckOS Os,
+    IN gctBOOL InUserSpace,
+    IN OUT gctSIZE_T * Bytes,
+    OUT gctPHYS_ADDR * Physical,
+    OUT gctPOINTER * Logical
+    )
+{
+    gctSIZE_T bytes;
+    gctINT numPages;
+    PLINUX_MDL mdl = gcvNULL;
+    PLINUX_MDL_MAP mdlMap = gcvNULL;
+    gctSTRING addr;
+    gckKERNEL kernel;
+#ifdef NO_DMA_COHERENT
+    struct page * page;
+    long size, order;
+    gctPOINTER vaddr;
+#endif
+    gctBOOL locked = gcvFALSE;
+    gceSTATUS status;
+
+    gcmkHEADER_ARG("Os=0x%X InUserSpace=%d *Bytes=%lu",
+                   Os, InUserSpace, gcmOPT_VALUE(Bytes));
+
+    /* Verify the arguments. */
+    gcmkVERIFY_OBJECT(Os, gcvOBJ_OS);
+    gcmkVERIFY_ARGUMENT(Bytes != gcvNULL);
+    gcmkVERIFY_ARGUMENT(*Bytes > 0);
+    gcmkVERIFY_ARGUMENT(Physical != gcvNULL);
+    gcmkVERIFY_ARGUMENT(Logical != gcvNULL);
+
+    /* Align number of bytes to page size. */
+    bytes = gcmALIGN(*Bytes, PAGE_SIZE);
+
+    /* Get total number of pages.. */
+    numPages = GetPageCount(bytes, 0);
+
+    /* Allocate mdl+vector structure */
+    mdl = _CreateMdl();
+    if (mdl == gcvNULL)
+    {
+        gcmkONERROR(gcvSTATUS_OUT_OF_MEMORY);
+    }
+
+    mdl->pagedMem = 0;
+    mdl->numPages = numPages;
+
+    MEMORY_LOCK(Os);
+    locked = gcvTRUE;
+
+#ifndef NO_DMA_COHERENT
+#ifdef CONFIG_ARM64
+    addr = dma_alloc_coherent(gcvNULL,
+#else
+    addr = dma_alloc_writecombine(gcvNULL,
+#endif
+            mdl->numPages * PAGE_SIZE,
+            &mdl->dmaHandle,
+            GFP_KERNEL | gcdNOWARN);
+#else
+    size    = mdl->numPages * PAGE_SIZE;
+    order   = get_order(size);
+
+    page = alloc_pages(GFP_KERNEL | gcdNOWARN, order);
+
+    if (page == gcvNULL)
+    {
+        gcmkONERROR(gcvSTATUS_OUT_OF_MEMORY);
+    }
+
+    vaddr           = (gctPOINTER)page_address(page);
+    mdl->contiguous = gcvTRUE;
+    mdl->u.contiguousPages = page;
+    addr            = _CreateKernelVirtualMapping(mdl);
+    mdl->dmaHandle  = virt_to_phys(vaddr);
+    mdl->kaddr      = vaddr;
+
+    /* Trigger a page fault. */
+    memset(addr, 0, numPages * PAGE_SIZE);
+
+#if !defined(CONFIG_PPC)
+    /* Cache invalidate. */
+    dma_sync_single_for_device(
+                gcvNULL,
+                page_to_phys(page),
+                bytes,
+                DMA_FROM_DEVICE);
+#endif
+
+    while (size > 0)
+    {
+        SetPageReserved(virt_to_page(vaddr));
+
+        vaddr   += PAGE_SIZE;
+        size    -= PAGE_SIZE;
+    }
+#endif
+
+    if (addr == gcvNULL)
+    {
+        gcmkONERROR(gcvSTATUS_OUT_OF_MEMORY);
+    }
+
+    kernel = Os->device->kernels[gcvCORE_MAJOR] != gcvNULL ?
+                Os->device->kernels[gcvCORE_MAJOR] : Os->device->kernels[gcvCORE_2D];
+
+#ifdef CONFLICT_BETWEEN_BASE_AND_PHYS
+    if (((Os->device->baseAddress & 0x80000000) != (mdl->dmaHandle & 0x80000000)) &&
+          kernel->hardware->mmuVersion == 0)
+    {
+        mdl->dmaHandle = (mdl->dmaHandle & ~0x80000000)
+                       | (Os->device->baseAddress & 0x80000000);
+    }
+#endif
+
+    mdl->addr = addr;
+
+    if (InUserSpace)
+    {
+        mdlMap = _CreateMdlMap(mdl, _GetProcessID());
+
+        if (mdlMap == gcvNULL)
+        {
+            gcmkONERROR(gcvSTATUS_OUT_OF_MEMORY);
+        }
+
+        /* Only after mmap this will be valid. */
+
+        /* We need to map this to user space. */
+#if LINUX_VERSION_CODE >= KERNEL_VERSION(3, 4, 0)
+        mdlMap->vmaAddr = (gctSTRING) vm_mmap(gcvNULL,
+                0L,
+                mdl->numPages * PAGE_SIZE,
+                PROT_READ | PROT_WRITE,
+                MAP_SHARED,
+                0);
+#else
+        down_write(&current->mm->mmap_sem);
+
+        mdlMap->vmaAddr = (gctSTRING) do_mmap_pgoff(gcvNULL,
+                0L,
+                mdl->numPages * PAGE_SIZE,
+                PROT_READ | PROT_WRITE,
+                MAP_SHARED,
+                0);
+
+        up_write(&current->mm->mmap_sem);
+#endif
+
+        if (IS_ERR(mdlMap->vmaAddr))
+        {
+            gcmkTRACE_ZONE(
+                gcvLEVEL_WARNING, gcvZONE_OS,
+                "%s(%d): do_mmap_pgoff error",
+                __FUNCTION__, __LINE__
+                );
+
+            mdlMap->vmaAddr = gcvNULL;
+
+            gcmkONERROR(gcvSTATUS_OUT_OF_MEMORY);
+        }
+
+        down_write(&current->mm->mmap_sem);
+
+        mdlMap->vma = find_vma(current->mm, (unsigned long)mdlMap->vmaAddr);
+
+        if (mdlMap->vma == gcvNULL)
+        {
+            gcmkTRACE_ZONE(
+                gcvLEVEL_WARNING, gcvZONE_OS,
+                "%s(%d): find_vma error",
+                __FUNCTION__, __LINE__
+                );
+
+            up_write(&current->mm->mmap_sem);
+
+            gcmkONERROR(gcvSTATUS_OUT_OF_RESOURCES);
+        }
+
+#ifndef NO_DMA_COHERENT
+        if (dma_mmap_coherent(gcvNULL,
+                mdlMap->vma,
+                mdl->addr,
+                mdl->dmaHandle,
+                mdl->numPages * PAGE_SIZE) < 0)
+        {
+            gcmkTRACE_ZONE(
+                gcvLEVEL_WARNING, gcvZONE_OS,
+                "%s(%d): dma_mmap_coherent error",
+                __FUNCTION__, __LINE__
+                );
+
+            up_write(&current->mm->mmap_sem);
+
+            gcmkONERROR(gcvSTATUS_OUT_OF_RESOURCES);
+        }
+#else
+        mdlMap->vma->vm_page_prot = gcmkNONPAGED_MEMROY_PROT(mdlMap->vma->vm_page_prot);
+        mdlMap->vma->vm_flags |= gcdVM_FLAGS;
+        mdlMap->vma->vm_pgoff = 0;
+
+        if (remap_pfn_range(mdlMap->vma,
+                            mdlMap->vma->vm_start,
+                            mdl->dmaHandle >> PAGE_SHIFT,
+                            mdl->numPages * PAGE_SIZE,
+                            mdlMap->vma->vm_page_prot))
+        {
+            gcmkTRACE_ZONE(
+                gcvLEVEL_WARNING, gcvZONE_OS,
+                "%s(%d): remap_pfn_range error",
+                __FUNCTION__, __LINE__
+                );
+
+            up_write(&current->mm->mmap_sem);
+
+            gcmkONERROR(gcvSTATUS_OUT_OF_RESOURCES);
+        }
+#endif /* NO_DMA_COHERENT */
+
+        up_write(&current->mm->mmap_sem);
+
+        *Logical = mdlMap->vmaAddr;
+    }
+    else
+    {
+        *Logical = (gctPOINTER)mdl->addr;
+    }
+
+    /*
+     * Add this to a global list.
+     * Will be used by get physical address
+     * and mapuser pointer functions.
+     */
+
+    if (!Os->mdlHead)
+    {
+        /* Initialize the queue. */
+        Os->mdlHead = Os->mdlTail = mdl;
+    }
+    else
+    {
+        /* Add to the tail. */
+        mdl->prev = Os->mdlTail;
+        Os->mdlTail->next = mdl;
+        Os->mdlTail = mdl;
+    }
+
+    MEMORY_UNLOCK(Os);
+
+    /* Return allocated memory. */
+    *Bytes = bytes;
+    *Physical = (gctPHYS_ADDR) mdl;
+
+    /* Success. */
+    gcmkFOOTER_ARG("*Bytes=%lu *Physical=0x%X *Logical=0x%X",
+                   *Bytes, *Physical, *Logical);
+    return gcvSTATUS_OK;
+
+OnError:
+    if (mdlMap != gcvNULL)
+    {
+        /* Free LINUX_MDL_MAP. */
+        gcmkVERIFY_OK(_DestroyMdlMap(mdl, mdlMap));
+    }
+
+    if (mdl != gcvNULL)
+    {
+        /* Free LINUX_MDL. */
+        gcmkVERIFY_OK(_DestroyMdl(mdl));
+    }
+
+    if (locked)
+    {
+        /* Unlock memory. */
+        MEMORY_UNLOCK(Os);
+    }
+
+    /* Return the status. */
+    gcmkFOOTER();
+    return status;
+}
+
+/*******************************************************************************
+**
+**  gckOS_FreeNonPagedMemory
+**
+**  Free previously allocated and mapped pages from non-paged memory.
+**
+**  INPUT:
+**
+**      gckOS Os
+**          Pointer to an gckOS object.
+**
+**      gctSIZE_T Bytes
+**          Number of bytes allocated.
+**
+**      gctPHYS_ADDR Physical
+**          Physical address of the allocated memory.
+**
+**      gctPOINTER Logical
+**          Logical address of the allocated memory.
+**
+**  OUTPUT:
+**
+**      Nothing.
+*/
+gceSTATUS gckOS_FreeNonPagedMemory(
+    IN gckOS Os,
+    IN gctSIZE_T Bytes,
+    IN gctPHYS_ADDR Physical,
+    IN gctPOINTER Logical
+    )
+{
+    PLINUX_MDL mdl;
+    PLINUX_MDL_MAP mdlMap;
+#ifdef NO_DMA_COHERENT
+    unsigned size;
+    gctPOINTER vaddr;
+#endif /* NO_DMA_COHERENT */
+
+    gcmkHEADER_ARG("Os=0x%X Bytes=%lu Physical=0x%X Logical=0x%X",
+                   Os, Bytes, Physical, Logical);
+
+    /* Verify the arguments. */
+    gcmkVERIFY_OBJECT(Os, gcvOBJ_OS);
+    gcmkVERIFY_ARGUMENT(Bytes > 0);
+    gcmkVERIFY_ARGUMENT(Physical != 0);
+    gcmkVERIFY_ARGUMENT(Logical != gcvNULL);
+
+    /* Convert physical address into a pointer to a MDL. */
+    mdl = (PLINUX_MDL) Physical;
+
+    MEMORY_LOCK(Os);
+
+#ifndef NO_DMA_COHERENT
+#ifdef CONFIG_ARM64
+    dma_free_coherent(gcvNULL,
+#else
+    dma_free_writecombine(gcvNULL,
+#endif
+            mdl->numPages * PAGE_SIZE,
+            mdl->addr,
+            mdl->dmaHandle);
+#else
+    size    = mdl->numPages * PAGE_SIZE;
+    vaddr   = mdl->kaddr;
+
+    while (size > 0)
+    {
+        ClearPageReserved(virt_to_page(vaddr));
+
+        vaddr   += PAGE_SIZE;
+        size    -= PAGE_SIZE;
+    }
+
+    free_pages((unsigned long)mdl->kaddr, get_order(mdl->numPages * PAGE_SIZE));
+
+    _DestoryKernelVirtualMapping(mdl->addr);
+#endif /* NO_DMA_COHERENT */
+
+    mdlMap = mdl->maps;
+
+    while (mdlMap != gcvNULL)
+    {
+        /* No mapped memory exists when free nonpaged memory */
+        gcmkASSERT(mdlMap->vmaAddr == gcvNULL);
+
+        mdlMap = mdlMap->next;
+    }
+
+    /* Remove the node from global list.. */
+    if (mdl == Os->mdlHead)
+    {
+        if ((Os->mdlHead = mdl->next) == gcvNULL)
+        {
+            Os->mdlTail = gcvNULL;
+        }
+    }
+    else
+    {
+        mdl->prev->next = mdl->next;
+        if (mdl == Os->mdlTail)
+        {
+            Os->mdlTail = mdl->prev;
+        }
+        else
+        {
+            mdl->next->prev = mdl->prev;
+        }
+    }
+
+    MEMORY_UNLOCK(Os);
+
+    gcmkVERIFY_OK(_DestroyMdl(mdl));
+
+    /* Success. */
+    gcmkFOOTER_NO();
+    return gcvSTATUS_OK;
+}
+
+/*******************************************************************************
+**
+**  gckOS_ReadRegister
+**
+**  Read data from a register.
+**
+**  INPUT:
+**
+**      gckOS Os
+**          Pointer to an gckOS object.
+**
+**      gctUINT32 Address
+**          Address of register.
+**
+**  OUTPUT:
+**
+**      gctUINT32 * Data
+**          Pointer to a variable that receives the data read from the register.
+*/
+gceSTATUS
+gckOS_ReadRegister(
+    IN gckOS Os,
+    IN gctUINT32 Address,
+    OUT gctUINT32 * Data
+    )
+{
+    return gckOS_ReadRegisterEx(Os, gcvCORE_MAJOR, Address, Data);
+}
+
+gceSTATUS
+gckOS_ReadRegisterEx(
+    IN gckOS Os,
+    IN gceCORE Core,
+    IN gctUINT32 Address,
+    OUT gctUINT32 * Data
+    )
+{
+    gcmkHEADER_ARG("Os=0x%X Core=%d Address=0x%X", Os, Core, Address);
+
+    /* Verify the arguments. */
+    gcmkVERIFY_OBJECT(Os, gcvOBJ_OS);
+    gcmkVERIFY_ARGUMENT(Address < Os->device->requestedRegisterMemSizes[Core]);
+    gcmkVERIFY_ARGUMENT(Data != gcvNULL);
+
+    if (!in_interrupt())
+    {
+        mutex_lock(&Os->registerAccessLocks[Core]);
+    }
+
+    BUG_ON(!_AllowAccess(Os, Core, Address));
+
+    {
+        *Data = readl((gctUINT8 *)Os->device->registerBases[Core] + Address);
+    }
+
+    if (!in_interrupt())
+    {
+        mutex_unlock(&Os->registerAccessLocks[Core]);
+    }
+
+    /* Success. */
+    gcmkFOOTER_ARG("*Data=0x%08x", *Data);
+    return gcvSTATUS_OK;
+}
+
+
+/*******************************************************************************
+**
+**  gckOS_WriteRegister
+**
+**  Write data to a register.
+**
+**  INPUT:
+**
+**      gckOS Os
+**          Pointer to an gckOS object.
+**
+**      gctUINT32 Address
+**          Address of register.
+**
+**      gctUINT32 Data
+**          Data for register.
+**
+**  OUTPUT:
+**
+**      Nothing.
+*/
+gceSTATUS
+gckOS_WriteRegister(
+    IN gckOS Os,
+    IN gctUINT32 Address,
+    IN gctUINT32 Data
+    )
+{
+    return gckOS_WriteRegisterEx(Os, gcvCORE_MAJOR, Address, Data);
+}
+
+gceSTATUS
+gckOS_WriteRegisterEx(
+    IN gckOS Os,
+    IN gceCORE Core,
+    IN gctUINT32 Address,
+    IN gctUINT32 Data
+    )
+{
+    gcmkHEADER_ARG("Os=0x%X Core=%d Address=0x%X Data=0x%08x", Os, Core, Address, Data);
+
+    gcmkVERIFY_ARGUMENT(Address < Os->device->requestedRegisterMemSizes[Core]);
+
+    if (!in_interrupt())
+    {
+        mutex_lock(&Os->registerAccessLocks[Core]);
+    }
+
+    BUG_ON(!_AllowAccess(Os, Core, Address));
+
+    {
+        writel(Data, (gctUINT8 *)Os->device->registerBases[Core] + Address);
+    }
+
+    if (!in_interrupt())
+    {
+        mutex_unlock(&Os->registerAccessLocks[Core]);
+    }
+
+    /* Success. */
+    gcmkFOOTER_NO();
+    return gcvSTATUS_OK;
+}
+
+
+/*******************************************************************************
+**
+**  gckOS_GetPageSize
+**
+**  Get the system's page size.
+**
+**  INPUT:
+**
+**      gckOS Os
+**          Pointer to an gckOS object.
+**
+**  OUTPUT:
+**
+**      gctSIZE_T * PageSize
+**          Pointer to a variable that will receive the system's page size.
+*/
+gceSTATUS gckOS_GetPageSize(
+    IN gckOS Os,
+    OUT gctSIZE_T * PageSize
+    )
+{
+    gcmkHEADER_ARG("Os=0x%X", Os);
+
+    /* Verify the arguments. */
+    gcmkVERIFY_OBJECT(Os, gcvOBJ_OS);
+    gcmkVERIFY_ARGUMENT(PageSize != gcvNULL);
+
+    /* Return the page size. */
+    *PageSize = (gctSIZE_T) PAGE_SIZE;
+
+    /* Success. */
+    gcmkFOOTER_ARG("*PageSize", *PageSize);
+    return gcvSTATUS_OK;
+}
+
+/*******************************************************************************
+**
+**  gckOS_GetPhysicalAddressProcess
+**
+**  Get the physical system address of a corresponding virtual address for a
+**  given process.
+**
+**  INPUT:
+**
+**      gckOS Os
+**          Pointer to gckOS object.
+**
+**      gctPOINTER Logical
+**          Logical address.
+**
+**      gctUINT32 ProcessID
+**          Process ID.
+**
+**  OUTPUT:
+**
+**      gctUINT32 * Address
+**          Poinetr to a variable that receives the 32-bit physical adress.
+*/
+gceSTATUS
+_GetPhysicalAddressProcess(
+    IN gckOS Os,
+    IN gctPOINTER Logical,
+    IN gctUINT32 ProcessID,
+    OUT gctPHYS_ADDR_T * Address
+    )
+{
+    PLINUX_MDL mdl;
+    gctINT8_PTR base;
+    gckALLOCATOR allocator = gcvNULL;
+    gceSTATUS status = gcvSTATUS_INVALID_ADDRESS;
+
+    gcmkHEADER_ARG("Os=0x%X Logical=0x%X ProcessID=%d", Os, Logical, ProcessID);
+
+    /* Verify the arguments. */
+    gcmkVERIFY_OBJECT(Os, gcvOBJ_OS);
+    gcmkVERIFY_ARGUMENT(Address != gcvNULL);
+
+    MEMORY_LOCK(Os);
+
+    /* First try the contiguous memory pool. */
+    if (Os->device->contiguousMapped)
+    {
+        base = (gctINT8_PTR) Os->device->contiguousBase;
+
+        if (((gctINT8_PTR) Logical >= base)
+        &&  ((gctINT8_PTR) Logical <  base + Os->device->contiguousSize)
+        )
+        {
+            /* Convert logical address into physical. */
+            *Address = Os->device->contiguousVidMem->baseAddress
+                     + (gctINT8_PTR) Logical - base;
+            status   = gcvSTATUS_OK;
+        }
+    }
+    else
+    {
+        /* Try the contiguous memory pool. */
+        mdl = (PLINUX_MDL) Os->device->contiguousPhysical;
+        status = _ConvertLogical2Physical(Os,
+                                          Logical,
+                                          ProcessID,
+                                          mdl,
+                                          Address);
+    }
+
+    if (gcmIS_ERROR(status))
+    {
+        /* Walk all MDLs. */
+        for (mdl = Os->mdlHead; mdl != gcvNULL; mdl = mdl->next)
+        {
+            /* Try this MDL. */
+            allocator = mdl->allocator;
+
+            if (allocator)
+            {
+                status = allocator->ops->LogicalToPhysical(
+                            allocator,
+                            mdl,
+                            Logical,
+                            ProcessID,
+                            Address
+                            );
+            }
+            else
+            {
+                status = _ConvertLogical2Physical(Os,
+                            Logical,
+                            ProcessID,
+                            mdl,
+                            Address);
+            }
+
+            if (gcmIS_SUCCESS(status))
+            {
+                break;
+            }
+        }
+    }
+
+    MEMORY_UNLOCK(Os);
+
+    gcmkONERROR(status);
+
+    /* Success. */
+    gcmkFOOTER_ARG("*Address=0x%08x", *Address);
+    return gcvSTATUS_OK;
+
+OnError:
+    /* Return the status. */
+    gcmkFOOTER();
+    return status;
+}
+
+
+
+/*******************************************************************************
+**
+**  gckOS_GetPhysicalAddress
+**
+**  Get the physical system address of a corresponding virtual address.
+**
+**  INPUT:
+**
+**      gckOS Os
+**          Pointer to an gckOS object.
+**
+**      gctPOINTER Logical
+**          Logical address.
+**
+**  OUTPUT:
+**
+**      gctUINT32 * Address
+**          Poinetr to a variable that receives the 32-bit physical adress.
+*/
+gceSTATUS
+gckOS_GetPhysicalAddress(
+    IN gckOS Os,
+    IN gctPOINTER Logical,
+    OUT gctPHYS_ADDR_T * Address
+    )
+{
+    gceSTATUS status;
+    gctUINT32 processID;
+
+    gcmkHEADER_ARG("Os=0x%X Logical=0x%X", Os, Logical);
+
+    /* Verify the arguments. */
+    gcmkVERIFY_OBJECT(Os, gcvOBJ_OS);
+    gcmkVERIFY_ARGUMENT(Address != gcvNULL);
+
+    /* Query page table of current process first. */
+    status = _QueryProcessPageTable(Logical, Address);
+
+    if (gcmIS_ERROR(status))
+    {
+        /* Get current process ID. */
+        processID = _GetProcessID();
+
+        /* Route through other function. */
+        gcmkONERROR(
+            _GetPhysicalAddressProcess(Os, Logical, processID, Address));
+    }
+
+    gcmkVERIFY_OK(gckOS_CPUPhysicalToGPUPhysical(Os, *Address, Address));
+
+    /* Success. */
+    gcmkFOOTER_ARG("*Address=0x%08x", *Address);
+    return gcvSTATUS_OK;
+
+OnError:
+    /* Return the status. */
+    gcmkFOOTER();
+    return status;
+}
+
+/*******************************************************************************
+**
+**  gckOS_UserLogicalToPhysical
+**
+**  Get the physical system address of a corresponding user virtual address.
+**
+**  INPUT:
+**
+**      gckOS Os
+**          Pointer to an gckOS object.
+**
+**      gctPOINTER Logical
+**          Logical address.
+**
+**  OUTPUT:
+**
+**      gctUINT32 * Address
+**          Pointer to a variable that receives the 32-bit physical address.
+*/
+gceSTATUS gckOS_UserLogicalToPhysical(
+    IN gckOS Os,
+    IN gctPOINTER Logical,
+    OUT gctPHYS_ADDR_T * Address
+    )
+{
+    return gckOS_GetPhysicalAddress(Os, Logical, Address);
+}
+
+#if gcdSECURE_USER
+static gceSTATUS
+gckOS_AddMapping(
+    IN gckOS Os,
+    IN gctUINT32 Physical,
+    IN gctPOINTER Logical,
+    IN gctSIZE_T Bytes
+    )
+{
+    gceSTATUS status;
+    gcsUSER_MAPPING_PTR map;
+
+    gcmkHEADER_ARG("Os=0x%X Physical=0x%X Logical=0x%X Bytes=%lu",
+                   Os, Physical, Logical, Bytes);
+
+    gcmkONERROR(gckOS_Allocate(Os,
+                               gcmSIZEOF(gcsUSER_MAPPING),
+                               (gctPOINTER *) &map));
+
+    map->next     = Os->userMap;
+    map->physical = Physical - Os->device->baseAddress;
+    map->logical  = Logical;
+    map->bytes    = Bytes;
+    map->start    = (gctINT8_PTR) Logical;
+    map->end      = map->start + Bytes;
+
+    Os->userMap = map;
+
+    gcmkFOOTER_NO();
+    return gcvSTATUS_OK;
+
+OnError:
+    gcmkFOOTER();
+    return status;
+}
+
+static gceSTATUS
+gckOS_RemoveMapping(
+    IN gckOS Os,
+    IN gctPOINTER Logical,
+    IN gctSIZE_T Bytes
+    )
+{
+    gceSTATUS status;
+    gcsUSER_MAPPING_PTR map, prev;
+
+    gcmkHEADER_ARG("Os=0x%X Logical=0x%X Bytes=%lu", Os, Logical, Bytes);
+
+    for (map = Os->userMap, prev = gcvNULL; map != gcvNULL; map = map->next)
+    {
+        if ((map->logical == Logical)
+        &&  (map->bytes   == Bytes)
+        )
+        {
+            break;
+        }
+
+        prev = map;
+    }
+
+    if (map == gcvNULL)
+    {
+        gcmkONERROR(gcvSTATUS_INVALID_ADDRESS);
+    }
+
+    if (prev == gcvNULL)
+    {
+        Os->userMap = map->next;
+    }
+    else
+    {
+        prev->next = map->next;
+    }
+
+    gcmkONERROR(gcmkOS_SAFE_FREE(Os, map));
+
+    gcmkFOOTER_NO();
+    return gcvSTATUS_OK;
+
+OnError:
+    gcmkFOOTER();
+    return status;
+}
+#endif
+
+gceSTATUS
+_ConvertLogical2Physical(
+    IN gckOS Os,
+    IN gctPOINTER Logical,
+    IN gctUINT32 ProcessID,
+    IN PLINUX_MDL Mdl,
+    OUT gctPHYS_ADDR_T * Physical
+    )
+{
+    gctINT8_PTR base, vBase;
+    gctUINT32 offset;
+    PLINUX_MDL_MAP map;
+    gcsUSER_MAPPING_PTR userMap;
+
+    base = (Mdl == gcvNULL) ? gcvNULL : (gctINT8_PTR) Mdl->addr;
+
+    /* Check for the logical address match. */
+    if ((base != gcvNULL)
+    &&  ((gctINT8_PTR) Logical >= base)
+    &&  ((gctINT8_PTR) Logical <  base + Mdl->numPages * PAGE_SIZE)
+    )
+    {
+        offset = (gctINT8_PTR) Logical - base;
+
+        if (Mdl->dmaHandle != 0)
+        {
+            /* The memory was from coherent area. */
+            *Physical = (gctUINT32) Mdl->dmaHandle + offset;
+        }
+        else if (Mdl->pagedMem && !Mdl->contiguous)
+        {
+            /* paged memory is not mapped to kernel space. */
+            return gcvSTATUS_INVALID_ADDRESS;
+        }
+        else
+        {
+            *Physical = gcmPTR2INT32(virt_to_phys(base)) + offset;
+        }
+
+        return gcvSTATUS_OK;
+    }
+
+    /* Walk user maps. */
+    for (userMap = Os->userMap; userMap != gcvNULL; userMap = userMap->next)
+    {
+        if (((gctINT8_PTR) Logical >= userMap->start)
+        &&  ((gctINT8_PTR) Logical <  userMap->end)
+        )
+        {
+            *Physical = userMap->physical
+                      + (gctUINT32) ((gctINT8_PTR) Logical - userMap->start);
+
+            return gcvSTATUS_OK;
+        }
+    }
+
+    if (ProcessID != Os->kernelProcessID)
+    {
+        map   = FindMdlMap(Mdl, (gctINT) ProcessID);
+        vBase = (map == gcvNULL) ? gcvNULL : (gctINT8_PTR) map->vmaAddr;
+
+        /* Is the given address within that range. */
+        if ((vBase != gcvNULL)
+        &&  ((gctINT8_PTR) Logical >= vBase)
+        &&  ((gctINT8_PTR) Logical <  vBase + Mdl->numPages * PAGE_SIZE)
+        )
+        {
+            offset = (gctINT8_PTR) Logical - vBase;
+
+            if (Mdl->dmaHandle != 0)
+            {
+                /* The memory was from coherent area. */
+                *Physical = (gctUINT32) Mdl->dmaHandle + offset;
+            }
+            else if (Mdl->pagedMem && !Mdl->contiguous)
+            {
+                *Physical = _NonContiguousToPhys(Mdl->u.nonContiguousPages, offset/PAGE_SIZE);
+            }
+            else
+            {
+                *Physical = page_to_phys(Mdl->u.contiguousPages) + offset;
+            }
+
+            return gcvSTATUS_OK;
+        }
+    }
+
+    /* Address not yet found. */
+    return gcvSTATUS_INVALID_ADDRESS;
+}
+
+/*******************************************************************************
+**
+**  gckOS_MapPhysical
+**
+**  Map a physical address into kernel space.
+**
+**  INPUT:
+**
+**      gckOS Os
+**          Pointer to an gckOS object.
+**
+**      gctUINT32 Physical
+**          Physical address of the memory to map.
+**
+**      gctSIZE_T Bytes
+**          Number of bytes to map.
+**
+**  OUTPUT:
+**
+**      gctPOINTER * Logical
+**          Pointer to a variable that receives the base address of the mapped
+**          memory.
+*/
+gceSTATUS
+gckOS_MapPhysical(
+    IN gckOS Os,
+    IN gctUINT32 Physical,
+    IN gctSIZE_T Bytes,
+    OUT gctPOINTER * Logical
+    )
+{
+    gctPOINTER logical;
+    PLINUX_MDL mdl;
+    gctUINT32 physical = Physical;
+
+    gcmkHEADER_ARG("Os=0x%X Physical=0x%X Bytes=%lu", Os, Physical, Bytes);
+
+    /* Verify the arguments. */
+    gcmkVERIFY_OBJECT(Os, gcvOBJ_OS);
+    gcmkVERIFY_ARGUMENT(Bytes > 0);
+    gcmkVERIFY_ARGUMENT(Logical != gcvNULL);
+
+    MEMORY_LOCK(Os);
+
+    /* Go through our mapping to see if we know this physical address already. */
+    mdl = Os->mdlHead;
+
+    while (mdl != gcvNULL)
+    {
+        if (mdl->dmaHandle != 0)
+        {
+            if ((physical >= mdl->dmaHandle)
+            &&  (physical < mdl->dmaHandle + mdl->numPages * PAGE_SIZE)
+            )
+            {
+                *Logical = mdl->addr + (physical - mdl->dmaHandle);
+                break;
+            }
+        }
+
+        mdl = mdl->next;
+    }
+
+    MEMORY_UNLOCK(Os);
+
+    if (mdl == gcvNULL)
+    {
+        struct page * page = pfn_to_page(physical >> PAGE_SHIFT);
+
+        if (pfn_valid(page_to_pfn(page)))
+        {
+            gctUINT32 offset = physical & ~PAGE_MASK;
+            struct page ** pages;
+            gctUINT numPages;
+            gctINT i;
+
+            numPages = GetPageCount(PAGE_ALIGN(offset + Bytes), 0);
+
+            pages = kmalloc(sizeof(struct page *) * numPages, GFP_KERNEL | gcdNOWARN);
+
+            if (!pages)
+            {
+                gcmkFOOTER_ARG("status=%d", gcvSTATUS_OUT_OF_MEMORY);
+                return gcvSTATUS_OUT_OF_MEMORY;
+            }
+
+            for (i = 0; i < numPages; i++)
+            {
+                pages[i] = nth_page(page, i);
+            }
+
+            logical = vmap(pages, numPages, 0, gcmkNONPAGED_MEMROY_PROT(PAGE_KERNEL));
+
+            kfree(pages);
+
+            if (logical == gcvNULL)
+            {
+                gcmkTRACE_ZONE(
+                    gcvLEVEL_INFO, gcvZONE_OS,
+                    "%s(%d): Failed to vmap",
+                    __FUNCTION__, __LINE__
+                    );
+
+                /* Out of resources. */
+                gcmkFOOTER_ARG("status=%d", gcvSTATUS_OUT_OF_RESOURCES);
+                return gcvSTATUS_OUT_OF_RESOURCES;
+            }
+
+            logical += offset;
+        }
+        else
+        {
+            /* Map memory as cached memory. */
+            request_mem_region(physical, Bytes, "MapRegion");
+            logical = (gctPOINTER) ioremap_nocache(physical, Bytes);
+
+            if (logical == gcvNULL)
+            {
+                gcmkTRACE_ZONE(
+                    gcvLEVEL_INFO, gcvZONE_OS,
+                    "%s(%d): Failed to ioremap",
+                    __FUNCTION__, __LINE__
+                    );
+
+                /* Out of resources. */
+                gcmkFOOTER_ARG("status=%d", gcvSTATUS_OUT_OF_RESOURCES);
+                return gcvSTATUS_OUT_OF_RESOURCES;
+            }
+        }
+
+        /* Return pointer to mapped memory. */
+        *Logical = logical;
+    }
+
+
+    /* Success. */
+    gcmkFOOTER_ARG("*Logical=0x%X", *Logical);
+    return gcvSTATUS_OK;
+}
+
+/*******************************************************************************
+**
+**  gckOS_UnmapPhysical
+**
+**  Unmap a previously mapped memory region from kernel memory.
+**
+**  INPUT:
+**
+**      gckOS Os
+**          Pointer to an gckOS object.
+**
+**      gctPOINTER Logical
+**          Pointer to the base address of the memory to unmap.
+**
+**      gctSIZE_T Bytes
+**          Number of bytes to unmap.
+**
+**  OUTPUT:
+**
+**      Nothing.
+*/
+gceSTATUS
+gckOS_UnmapPhysical(
+    IN gckOS Os,
+    IN gctPOINTER Logical,
+    IN gctSIZE_T Bytes
+    )
+{
+    PLINUX_MDL  mdl;
+
+    gcmkHEADER_ARG("Os=0x%X Logical=0x%X Bytes=%lu", Os, Logical, Bytes);
+
+    /* Verify the arguments. */
+    gcmkVERIFY_OBJECT(Os, gcvOBJ_OS);
+    gcmkVERIFY_ARGUMENT(Logical != gcvNULL);
+    gcmkVERIFY_ARGUMENT(Bytes > 0);
+
+    MEMORY_LOCK(Os);
+
+    mdl = Os->mdlHead;
+
+    while (mdl != gcvNULL)
+    {
+        if (mdl->addr != gcvNULL)
+        {
+            if (Logical >= (gctPOINTER)mdl->addr
+                    && Logical < (gctPOINTER)((gctSTRING)mdl->addr + mdl->numPages * PAGE_SIZE))
+            {
+                break;
+            }
+        }
+
+        mdl = mdl->next;
+    }
+
+    if (mdl == gcvNULL)
+    {
+        /* Unmap the memory. */
+        vunmap((void *)((unsigned long)Logical & PAGE_MASK));
+    }
+
+    MEMORY_UNLOCK(Os);
+
+    /* Success. */
+    gcmkFOOTER_NO();
+    return gcvSTATUS_OK;
+}
+
+/*******************************************************************************
+**
+**  gckOS_DeleteMutex
+**
+**  Delete a mutex.
+**
+**  INPUT:
+**
+**      gckOS Os
+**          Pointer to an gckOS object.
+**
+**      gctPOINTER Mutex
+**          Pointer to the mute to be deleted.
+**
+**  OUTPUT:
+**
+**      Nothing.
+*/
+gceSTATUS
+gckOS_DeleteMutex(
+    IN gckOS Os,
+    IN gctPOINTER Mutex
+    )
+{
+    gceSTATUS status;
+
+    gcmkHEADER_ARG("Os=0x%X Mutex=0x%X", Os, Mutex);
+
+    /* Validate the arguments. */
+    gcmkVERIFY_OBJECT(Os, gcvOBJ_OS);
+    gcmkVERIFY_ARGUMENT(Mutex != gcvNULL);
+
+    /* Destroy the mutex. */
+    mutex_destroy((struct mutex *)Mutex);
+
+    /* Free the mutex structure. */
+    gcmkONERROR(gckOS_Free(Os, Mutex));
+
+    gcmkFOOTER_NO();
+    return gcvSTATUS_OK;
+
+OnError:
+    /* Return status. */
+    gcmkFOOTER();
+    return status;
+}
+
+/*******************************************************************************
+**
+**  gckOS_AcquireMutex
+**
+**  Acquire a mutex.
+**
+**  INPUT:
+**
+**      gckOS Os
+**          Pointer to an gckOS object.
+**
+**      gctPOINTER Mutex
+**          Pointer to the mutex to be acquired.
+**
+**      gctUINT32 Timeout
+**          Timeout value specified in milliseconds.
+**          Specify the value of gcvINFINITE to keep the thread suspended
+**          until the mutex has been acquired.
+**
+**  OUTPUT:
+**
+**      Nothing.
+*/
+gceSTATUS
+gckOS_AcquireMutex(
+    IN gckOS Os,
+    IN gctPOINTER Mutex,
+    IN gctUINT32 Timeout
+    )
+{
+    gcmkHEADER_ARG("Os=0x%X Mutex=0x%0x Timeout=%u", Os, Mutex, Timeout);
+
+    /* Validate the arguments. */
+    gcmkVERIFY_OBJECT(Os, gcvOBJ_OS);
+    gcmkVERIFY_ARGUMENT(Mutex != gcvNULL);
+
+    if (Timeout == gcvINFINITE)
+    {
+        /* Lock the mutex. */
+        mutex_lock(Mutex);
+
+        /* Success. */
+        gcmkFOOTER_NO();
+        return gcvSTATUS_OK;
+    }
+
+    for (;;)
+    {
+        /* Try to acquire the mutex. */
+        if (mutex_trylock(Mutex))
+        {
+            /* Success. */
+            gcmkFOOTER_NO();
+            return gcvSTATUS_OK;
+        }
+
+        if (Timeout-- == 0)
+        {
+            break;
+        }
+
+        /* Wait for 1 millisecond. */
+        gcmkVERIFY_OK(gckOS_Delay(Os, 1));
+    }
+
+    /* Timeout. */
+    gcmkFOOTER_ARG("status=%d", gcvSTATUS_TIMEOUT);
+    return gcvSTATUS_TIMEOUT;
+}
+
+/*******************************************************************************
+**
+**  gckOS_ReleaseMutex
+**
+**  Release an acquired mutex.
+**
+**  INPUT:
+**
+**      gckOS Os
+**          Pointer to an gckOS object.
+**
+**      gctPOINTER Mutex
+**          Pointer to the mutex to be released.
+**
+**  OUTPUT:
+**
+**      Nothing.
+*/
+gceSTATUS
+gckOS_ReleaseMutex(
+    IN gckOS Os,
+    IN gctPOINTER Mutex
+    )
+{
+    gcmkHEADER_ARG("Os=0x%X Mutex=0x%0x", Os, Mutex);
+
+    /* Validate the arguments. */
+    gcmkVERIFY_OBJECT(Os, gcvOBJ_OS);
+    gcmkVERIFY_ARGUMENT(Mutex != gcvNULL);
+
+    /* Release the mutex. */
+    mutex_unlock(Mutex);
+
+    /* Success. */
+    gcmkFOOTER_NO();
+    return gcvSTATUS_OK;
+}
+
+/*******************************************************************************
+**
+**  gckOS_AtomicExchange
+**
+**  Atomically exchange a pair of 32-bit values.
+**
+**  INPUT:
+**
+**      gckOS Os
+**          Pointer to an gckOS object.
+**
+**      IN OUT gctINT32_PTR Target
+**          Pointer to the 32-bit value to exchange.
+**
+**      IN gctINT32 NewValue
+**          Specifies a new value for the 32-bit value pointed to by Target.
+**
+**      OUT gctINT32_PTR OldValue
+**          The old value of the 32-bit value pointed to by Target.
+**
+**  OUTPUT:
+**
+**      Nothing.
+*/
+gceSTATUS
+gckOS_AtomicExchange(
+    IN gckOS Os,
+    IN OUT gctUINT32_PTR Target,
+    IN gctUINT32 NewValue,
+    OUT gctUINT32_PTR OldValue
+    )
+{
+    gcmkHEADER_ARG("Os=0x%X Target=0x%X NewValue=%u", Os, Target, NewValue);
+
+    /* Verify the arguments. */
+    gcmkVERIFY_OBJECT(Os, gcvOBJ_OS);
+    gcmkVERIFY_ARGUMENT(OldValue != gcvNULL);
+
+    /* Exchange the pair of 32-bit values. */
+    *OldValue = (gctUINT32) atomic_xchg((atomic_t *) Target, (int) NewValue);
+
+    /* Success. */
+    gcmkFOOTER_ARG("*OldValue=%u", *OldValue);
+    return gcvSTATUS_OK;
+}
+
+/*******************************************************************************
+**
+**  gckOS_AtomicExchangePtr
+**
+**  Atomically exchange a pair of pointers.
+**
+**  INPUT:
+**
+**      gckOS Os
+**          Pointer to an gckOS object.
+**
+**      IN OUT gctPOINTER * Target
+**          Pointer to the 32-bit value to exchange.
+**
+**      IN gctPOINTER NewValue
+**          Specifies a new value for the pointer pointed to by Target.
+**
+**      OUT gctPOINTER * OldValue
+**          The old value of the pointer pointed to by Target.
+**
+**  OUTPUT:
+**
+**      Nothing.
+*/
+gceSTATUS
+gckOS_AtomicExchangePtr(
+    IN gckOS Os,
+    IN OUT gctPOINTER * Target,
+    IN gctPOINTER NewValue,
+    OUT gctPOINTER * OldValue
+    )
+{
+    gcmkHEADER_ARG("Os=0x%X Target=0x%X NewValue=0x%X", Os, Target, NewValue);
+
+    /* Verify the arguments. */
+    gcmkVERIFY_OBJECT(Os, gcvOBJ_OS);
+    gcmkVERIFY_ARGUMENT(OldValue != gcvNULL);
+
+    /* Exchange the pair of pointers. */
+    *OldValue = (gctPOINTER)(gctUINTPTR_T) atomic_xchg((atomic_t *) Target, (int)(gctUINTPTR_T) NewValue);
+
+    /* Success. */
+    gcmkFOOTER_ARG("*OldValue=0x%X", *OldValue);
+    return gcvSTATUS_OK;
+}
+
+/*******************************************************************************
+**
+**  gckOS_AtomicSetMask
+**
+**  Atomically set mask to Atom
+**
+**  INPUT:
+**      IN OUT gctPOINTER Atom
+**          Pointer to the atom to set.
+**
+**      IN gctUINT32 Mask
+**          Mask to set.
+**
+**  OUTPUT:
+**
+**      Nothing.
+*/
+gceSTATUS
+gckOS_AtomSetMask(
+    IN gctPOINTER Atom,
+    IN gctUINT32 Mask
+    )
+{
+    gctUINT32 oval, nval;
+
+    gcmkHEADER_ARG("Atom=0x%0x", Atom);
+    gcmkVERIFY_ARGUMENT(Atom != gcvNULL);
+
+    do
+    {
+        oval = atomic_read((atomic_t *) Atom);
+        nval = oval | Mask;
+    } while (atomic_cmpxchg((atomic_t *) Atom, oval, nval) != oval);
+
+    gcmkFOOTER_NO();
+    return gcvSTATUS_OK;
+}
+
+/*******************************************************************************
+**
+**  gckOS_AtomClearMask
+**
+**  Atomically clear mask from Atom
+**
+**  INPUT:
+**      IN OUT gctPOINTER Atom
+**          Pointer to the atom to clear.
+**
+**      IN gctUINT32 Mask
+**          Mask to clear.
+**
+**  OUTPUT:
+**
+**      Nothing.
+*/
+gceSTATUS
+gckOS_AtomClearMask(
+    IN gctPOINTER Atom,
+    IN gctUINT32 Mask
+    )
+{
+    gctUINT32 oval, nval;
+
+    gcmkHEADER_ARG("Atom=0x%0x", Atom);
+    gcmkVERIFY_ARGUMENT(Atom != gcvNULL);
+
+    do
+    {
+        oval = atomic_read((atomic_t *) Atom);
+        nval = oval & ~Mask;
+    } while (atomic_cmpxchg((atomic_t *) Atom, oval, nval) != oval);
+
+    gcmkFOOTER_NO();
+    return gcvSTATUS_OK;
+}
+
+/*******************************************************************************
+**
+**  gckOS_AtomConstruct
+**
+**  Create an atom.
+**
+**  INPUT:
+**
+**      gckOS Os
+**          Pointer to a gckOS object.
+**
+**  OUTPUT:
+**
+**      gctPOINTER * Atom
+**          Pointer to a variable receiving the constructed atom.
+*/
+gceSTATUS
+gckOS_AtomConstruct(
+    IN gckOS Os,
+    OUT gctPOINTER * Atom
+    )
+{
+    gceSTATUS status;
+
+    gcmkHEADER_ARG("Os=0x%X", Os);
+
+    /* Verify the arguments. */
+    gcmkVERIFY_OBJECT(Os, gcvOBJ_OS);
+    gcmkVERIFY_ARGUMENT(Atom != gcvNULL);
+
+    /* Allocate the atom. */
+    gcmkONERROR(gckOS_Allocate(Os, gcmSIZEOF(atomic_t), Atom));
+
+    /* Initialize the atom. */
+    atomic_set((atomic_t *) *Atom, 0);
+
+    /* Success. */
+    gcmkFOOTER_ARG("*Atom=0x%X", *Atom);
+    return gcvSTATUS_OK;
+
+OnError:
+    /* Return the status. */
+    gcmkFOOTER();
+    return status;
+}
+
+/*******************************************************************************
+**
+**  gckOS_AtomDestroy
+**
+**  Destroy an atom.
+**
+**  INPUT:
+**
+**      gckOS Os
+**          Pointer to a gckOS object.
+**
+**      gctPOINTER Atom
+**          Pointer to the atom to destroy.
+**
+**  OUTPUT:
+**
+**      Nothing.
+*/
+gceSTATUS
+gckOS_AtomDestroy(
+    IN gckOS Os,
+    OUT gctPOINTER Atom
+    )
+{
+    gceSTATUS status;
+
+    gcmkHEADER_ARG("Os=0x%X Atom=0x%0x", Os, Atom);
+
+    /* Verify the arguments. */
+    gcmkVERIFY_OBJECT(Os, gcvOBJ_OS);
+    gcmkVERIFY_ARGUMENT(Atom != gcvNULL);
+
+    /* Free the atom. */
+    gcmkONERROR(gcmkOS_SAFE_FREE(Os, Atom));
+
+    /* Success. */
+    gcmkFOOTER_NO();
+    return gcvSTATUS_OK;
+
+OnError:
+    /* Return the status. */
+    gcmkFOOTER();
+    return status;
+}
+
+/*******************************************************************************
+**
+**  gckOS_AtomGet
+**
+**  Get the 32-bit value protected by an atom.
+**
+**  INPUT:
+**
+**      gckOS Os
+**          Pointer to a gckOS object.
+**
+**      gctPOINTER Atom
+**          Pointer to the atom.
+**
+**  OUTPUT:
+**
+**      gctINT32_PTR Value
+**          Pointer to a variable the receives the value of the atom.
+*/
+gceSTATUS
+gckOS_AtomGet(
+    IN gckOS Os,
+    IN gctPOINTER Atom,
+    OUT gctINT32_PTR Value
+    )
+{
+    gcmkHEADER_ARG("Os=0x%X Atom=0x%0x", Os, Atom);
+
+    /* Verify the arguments. */
+    gcmkVERIFY_OBJECT(Os, gcvOBJ_OS);
+    gcmkVERIFY_ARGUMENT(Atom != gcvNULL);
+
+    /* Return the current value of atom. */
+    *Value = atomic_read((atomic_t *) Atom);
+
+    /* Success. */
+    gcmkFOOTER_ARG("*Value=%d", *Value);
+    return gcvSTATUS_OK;
+}
+
+/*******************************************************************************
+**
+**  gckOS_AtomSet
+**
+**  Set the 32-bit value protected by an atom.
+**
+**  INPUT:
+**
+**      gckOS Os
+**          Pointer to a gckOS object.
+**
+**      gctPOINTER Atom
+**          Pointer to the atom.
+**
+**      gctINT32 Value
+**          The value of the atom.
+**
+**  OUTPUT:
+**
+**      Nothing.
+*/
+gceSTATUS
+gckOS_AtomSet(
+    IN gckOS Os,
+    IN gctPOINTER Atom,
+    IN gctINT32 Value
+    )
+{
+    gcmkHEADER_ARG("Os=0x%X Atom=0x%0x Value=%d", Os, Atom);
+
+    /* Verify the arguments. */
+    gcmkVERIFY_OBJECT(Os, gcvOBJ_OS);
+    gcmkVERIFY_ARGUMENT(Atom != gcvNULL);
+
+    /* Set the current value of atom. */
+    atomic_set((atomic_t *) Atom, Value);
+
+    /* Success. */
+    gcmkFOOTER_NO();
+    return gcvSTATUS_OK;
+}
+
+/*******************************************************************************
+**
+**  gckOS_AtomIncrement
+**
+**  Atomically increment the 32-bit integer value inside an atom.
+**
+**  INPUT:
+**
+**      gckOS Os
+**          Pointer to a gckOS object.
+**
+**      gctPOINTER Atom
+**          Pointer to the atom.
+**
+**  OUTPUT:
+**
+**      gctINT32_PTR Value
+**          Pointer to a variable that receives the original value of the atom.
+*/
+gceSTATUS
+gckOS_AtomIncrement(
+    IN gckOS Os,
+    IN gctPOINTER Atom,
+    OUT gctINT32_PTR Value
+    )
+{
+    gcmkHEADER_ARG("Os=0x%X Atom=0x%0x", Os, Atom);
+
+    /* Verify the arguments. */
+    gcmkVERIFY_OBJECT(Os, gcvOBJ_OS);
+    gcmkVERIFY_ARGUMENT(Atom != gcvNULL);
+
+    /* Increment the atom. */
+    *Value = atomic_inc_return((atomic_t *) Atom) - 1;
+
+    /* Success. */
+    gcmkFOOTER_ARG("*Value=%d", *Value);
+    return gcvSTATUS_OK;
+}
+
+/*******************************************************************************
+**
+**  gckOS_AtomDecrement
+**
+**  Atomically decrement the 32-bit integer value inside an atom.
+**
+**  INPUT:
+**
+**      gckOS Os
+**          Pointer to a gckOS object.
+**
+**      gctPOINTER Atom
+**          Pointer to the atom.
+**
+**  OUTPUT:
+**
+**      gctINT32_PTR Value
+**          Pointer to a variable that receives the original value of the atom.
+*/
+gceSTATUS
+gckOS_AtomDecrement(
+    IN gckOS Os,
+    IN gctPOINTER Atom,
+    OUT gctINT32_PTR Value
+    )
+{
+    gcmkHEADER_ARG("Os=0x%X Atom=0x%0x", Os, Atom);
+
+    /* Verify the arguments. */
+    gcmkVERIFY_OBJECT(Os, gcvOBJ_OS);
+    gcmkVERIFY_ARGUMENT(Atom != gcvNULL);
+
+    /* Decrement the atom. */
+    *Value = atomic_dec_return((atomic_t *) Atom) + 1;
+
+    /* Success. */
+    gcmkFOOTER_ARG("*Value=%d", *Value);
+    return gcvSTATUS_OK;
+}
+
+/*******************************************************************************
+**
+**  gckOS_Delay
+**
+**  Delay execution of the current thread for a number of milliseconds.
+**
+**  INPUT:
+**
+**      gckOS Os
+**          Pointer to an gckOS object.
+**
+**      gctUINT32 Delay
+**          Delay to sleep, specified in milliseconds.
+**
+**  OUTPUT:
+**
+**      Nothing.
+*/
+gceSTATUS
+gckOS_Delay(
+    IN gckOS Os,
+    IN gctUINT32 Delay
+    )
+{
+    gcmkHEADER_ARG("Os=0x%X Delay=%u", Os, Delay);
+
+    if (Delay > 0)
+    {
+#if LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 28)
+        ktime_t delay = ktime_set((Delay / MSEC_PER_SEC), (Delay % MSEC_PER_SEC) * NSEC_PER_MSEC);
+        __set_current_state(TASK_UNINTERRUPTIBLE);
+        schedule_hrtimeout(&delay, HRTIMER_MODE_REL);
+#else
+        msleep(Delay);
+#endif
+    }
+
+    /* Success. */
+    gcmkFOOTER_NO();
+    return gcvSTATUS_OK;
+}
+
+/*******************************************************************************
+**
+**  gckOS_GetTicks
+**
+**  Get the number of milliseconds since the system started.
+**
+**  INPUT:
+**
+**  OUTPUT:
+**
+**      gctUINT32_PTR Time
+**          Pointer to a variable to get time.
+**
+*/
+gceSTATUS
+gckOS_GetTicks(
+    OUT gctUINT32_PTR Time
+    )
+{
+     gcmkHEADER();
+
+    *Time = jiffies_to_msecs(jiffies);
+
+    gcmkFOOTER_NO();
+    return gcvSTATUS_OK;
+}
+
+/*******************************************************************************
+**
+**  gckOS_TicksAfter
+**
+**  Compare time values got from gckOS_GetTicks.
+**
+**  INPUT:
+**      gctUINT32 Time1
+**          First time value to be compared.
+**
+**      gctUINT32 Time2
+**          Second time value to be compared.
+**
+**  OUTPUT:
+**
+**      gctBOOL_PTR IsAfter
+**          Pointer to a variable to result.
+**
+*/
+gceSTATUS
+gckOS_TicksAfter(
+    IN gctUINT32 Time1,
+    IN gctUINT32 Time2,
+    OUT gctBOOL_PTR IsAfter
+    )
+{
+    gcmkHEADER();
+
+    *IsAfter = time_after((unsigned long)Time1, (unsigned long)Time2);
+
+    gcmkFOOTER_NO();
+    return gcvSTATUS_OK;
+}
+
+/*******************************************************************************
+**
+**  gckOS_GetTime
+**
+**  Get the number of microseconds since the system started.
+**
+**  INPUT:
+**
+**  OUTPUT:
+**
+**      gctUINT64_PTR Time
+**          Pointer to a variable to get time.
+**
+*/
+gceSTATUS
+gckOS_GetTime(
+    OUT gctUINT64_PTR Time
+    )
+{
+    struct timeval tv;
+    gcmkHEADER();
+
+    /* Return the time of day in microseconds. */
+    do_gettimeofday(&tv);
+    *Time = (tv.tv_sec * 1000000ULL) + tv.tv_usec;
+
+    gcmkFOOTER_NO();
+    return gcvSTATUS_OK;
+}
+
+/*******************************************************************************
+**
+**  gckOS_MemoryBarrier
+**
+**  Make sure the CPU has executed everything up to this point and the data got
+**  written to the specified pointer.
+**
+**  INPUT:
+**
+**      gckOS Os
+**          Pointer to an gckOS object.
+**
+**      gctPOINTER Address
+**          Address of memory that needs to be barriered.
+**
+**  OUTPUT:
+**
+**      Nothing.
+*/
+gceSTATUS
+gckOS_MemoryBarrier(
+    IN gckOS Os,
+    IN gctPOINTER Address
+    )
+{
+    gcmkHEADER_ARG("Os=0x%X Address=0x%X", Os, Address);
+
+    /* Verify the arguments. */
+    gcmkVERIFY_OBJECT(Os, gcvOBJ_OS);
+
+#if gcdNONPAGED_MEMORY_BUFFERABLE \
+    && defined (CONFIG_ARM) \
+    && (LINUX_VERSION_CODE < KERNEL_VERSION(2,6,34))
+    /* drain write buffer */
+    dsb();
+
+    /* drain outer cache's write buffer? */
+#else
+    mb();
+#endif
+
+    /* Success. */
+    gcmkFOOTER_NO();
+    return gcvSTATUS_OK;
+}
+
+/*******************************************************************************
+**
+**  gckOS_AllocatePagedMemory
+**
+**  Allocate memory from the paged pool.
+**
+**  INPUT:
+**
+**      gckOS Os
+**          Pointer to an gckOS object.
+**
+**      gctSIZE_T Bytes
+**          Number of bytes to allocate.
+**
+**  OUTPUT:
+**
+**      gctPHYS_ADDR * Physical
+**          Pointer to a variable that receives the physical address of the
+**          memory allocation.
+*/
+gceSTATUS
+gckOS_AllocatePagedMemory(
+    IN gckOS Os,
+    IN gctSIZE_T Bytes,
+    OUT gctPHYS_ADDR * Physical
+    )
+{
+    gceSTATUS status;
+
+    gcmkHEADER_ARG("Os=0x%X Bytes=%lu", Os, Bytes);
+
+    /* Verify the arguments. */
+    gcmkVERIFY_OBJECT(Os, gcvOBJ_OS);
+    gcmkVERIFY_ARGUMENT(Bytes > 0);
+    gcmkVERIFY_ARGUMENT(Physical != gcvNULL);
+
+    /* Allocate the memory. */
+    gcmkONERROR(gckOS_AllocatePagedMemoryEx(Os, gcvALLOC_FLAG_NONE, Bytes, gcvNULL, Physical));
+
+    /* Success. */
+    gcmkFOOTER_ARG("*Physical=0x%X", *Physical);
+    return gcvSTATUS_OK;
+
+OnError:
+    /* Return the status. */
+    gcmkFOOTER();
+    return status;
+}
+
+/*******************************************************************************
+**
+**  gckOS_AllocatePagedMemoryEx
+**
+**  Allocate memory from the paged pool.
+**
+**  INPUT:
+**
+**      gckOS Os
+**          Pointer to an gckOS object.
+**
+**      gctUINT32 Flag
+**          Allocation attribute.
+**
+**      gctSIZE_T Bytes
+**          Number of bytes to allocate.
+**
+**  OUTPUT:
+**
+**      gctUINT32 * Gid
+**          Save the global ID for the piece of allocated memory.
+**
+**      gctPHYS_ADDR * Physical
+**          Pointer to a variable that receives the physical address of the
+**          memory allocation.
+*/
+gceSTATUS
+gckOS_AllocatePagedMemoryEx(
+    IN gckOS Os,
+    IN gctUINT32 Flag,
+    IN gctSIZE_T Bytes,
+    OUT gctUINT32 * Gid,
+    OUT gctPHYS_ADDR * Physical
+    )
+{
+    gctINT numPages;
+    PLINUX_MDL mdl = gcvNULL;
+    gctSIZE_T bytes;
+    gceSTATUS status = gcvSTATUS_OUT_OF_MEMORY;
+    gckALLOCATOR allocator;
+
+    gcmkHEADER_ARG("Os=0x%X Flag=%x Bytes=%lu", Os, Flag, Bytes);
+
+    /* Verify the arguments. */
+    gcmkVERIFY_OBJECT(Os, gcvOBJ_OS);
+    gcmkVERIFY_ARGUMENT(Bytes > 0);
+    gcmkVERIFY_ARGUMENT(Physical != gcvNULL);
+
+    bytes = gcmALIGN(Bytes, PAGE_SIZE);
+
+    numPages = GetPageCount(bytes, 0);
+
+    mdl = _CreateMdl();
+    if (mdl == gcvNULL)
+    {
+        gcmkONERROR(gcvSTATUS_OUT_OF_MEMORY);
+    }
+
+    /* Walk all allocators. */
+    list_for_each_entry(allocator, &Os->allocatorList, head)
+    {
+        gcmkTRACE_ZONE(gcvLEVEL_INFO, gcvZONE_OS,
+                       "%s(%d) flag = %x allocator->capability = %x",
+                        __FUNCTION__, __LINE__, Flag, allocator->capability);
+
+        if ((Flag & allocator->capability) != Flag)
+        {
+            continue;
+        }
+
+        status = allocator->ops->Alloc(allocator, mdl, numPages, Flag);
+
+        if (gcmIS_SUCCESS(status))
+        {
+            mdl->allocator = allocator;
+            break;
+        }
+    }
+
+    /* Check status. */
+    gcmkONERROR(status);
+
+    mdl->dmaHandle  = 0;
+    mdl->addr       = 0;
+    mdl->numPages   = numPages;
+    mdl->pagedMem   = 1;
+    mdl->contiguous = Flag & gcvALLOC_FLAG_CONTIGUOUS;
+
+    if (Gid != gcvNULL)
+    {
+        *Gid = mdl->gid;
+    }
+
+    MEMORY_LOCK(Os);
+
+    /*
+     * Add this to a global list.
+     * Will be used by get physical address
+     * and mapuser pointer functions.
+     */
+    if (!Os->mdlHead)
+    {
+        /* Initialize the queue. */
+        Os->mdlHead = Os->mdlTail = mdl;
+    }
+    else
+    {
+        /* Add to tail. */
+        mdl->prev           = Os->mdlTail;
+        Os->mdlTail->next   = mdl;
+        Os->mdlTail         = mdl;
+    }
+
+    MEMORY_UNLOCK(Os);
+
+    /* Return physical address. */
+    *Physical = (gctPHYS_ADDR) mdl;
+
+    /* Success. */
+    gcmkFOOTER_ARG("*Physical=0x%X", *Physical);
+    return gcvSTATUS_OK;
+
+OnError:
+    if (mdl != gcvNULL)
+    {
+        /* Free the memory. */
+        _DestroyMdl(mdl);
+    }
+
+    /* Return the status. */
+    gcmkFOOTER_ARG("Os=0x%X Flag=%x Bytes=%lu", Os, Flag, Bytes);
+    return status;
+}
+
+/*******************************************************************************
+**
+**  gckOS_FreePagedMemory
+**
+**  Free memory allocated from the paged pool.
+**
+**  INPUT:
+**
+**      gckOS Os
+**          Pointer to an gckOS object.
+**
+**      gctPHYS_ADDR Physical
+**          Physical address of the allocation.
+**
+**      gctSIZE_T Bytes
+**          Number of bytes of the allocation.
+**
+**  OUTPUT:
+**
+**      Nothing.
+*/
+gceSTATUS
+gckOS_FreePagedMemory(
+    IN gckOS Os,
+    IN gctPHYS_ADDR Physical,
+    IN gctSIZE_T Bytes
+    )
+{
+    PLINUX_MDL mdl = (PLINUX_MDL) Physical;
+    gckALLOCATOR allocator = (gckALLOCATOR)mdl->allocator;
+
+    gcmkHEADER_ARG("Os=0x%X Physical=0x%X Bytes=%lu", Os, Physical, Bytes);
+
+    /* Verify the arguments. */
+    gcmkVERIFY_OBJECT(Os, gcvOBJ_OS);
+    gcmkVERIFY_ARGUMENT(Physical != gcvNULL);
+    gcmkVERIFY_ARGUMENT(Bytes > 0);
+
+    MEMORY_LOCK(Os);
+
+    /* Remove the node from global list. */
+    if (mdl == Os->mdlHead)
+    {
+        if ((Os->mdlHead = mdl->next) == gcvNULL)
+        {
+            Os->mdlTail = gcvNULL;
+        }
+    }
+    else
+    {
+        mdl->prev->next = mdl->next;
+
+        if (mdl == Os->mdlTail)
+        {
+            Os->mdlTail = mdl->prev;
+        }
+        else
+        {
+            mdl->next->prev = mdl->prev;
+        }
+    }
+
+    MEMORY_UNLOCK(Os);
+
+    allocator->ops->Free(allocator, mdl);
+
+    /* Free the structure... */
+    gcmkVERIFY_OK(_DestroyMdl(mdl));
+
+    /* Success. */
+    gcmkFOOTER_NO();
+    return gcvSTATUS_OK;
+}
+
+/*******************************************************************************
+**
+**  gckOS_LockPages
+**
+**  Lock memory allocated from the paged pool.
+**
+**  INPUT:
+**
+**      gckOS Os
+**          Pointer to an gckOS object.
+**
+**      gctPHYS_ADDR Physical
+**          Physical address of the allocation.
+**
+**      gctSIZE_T Bytes
+**          Number of bytes of the allocation.
+**
+**      gctBOOL Cacheable
+**          Cache mode of mapping.
+**
+**  OUTPUT:
+**
+**      gctPOINTER * Logical
+**          Pointer to a variable that receives the address of the mapped
+**          memory.
+**
+**      gctSIZE_T * PageCount
+**          Pointer to a variable that receives the number of pages required for
+**          the page table according to the GPU page size.
+*/
+gceSTATUS
+gckOS_LockPages(
+    IN gckOS Os,
+    IN gctPHYS_ADDR Physical,
+    IN gctSIZE_T Bytes,
+    IN gctBOOL Cacheable,
+    OUT gctPOINTER * Logical,
+    OUT gctSIZE_T * PageCount
+    )
+{
+    gceSTATUS       status;
+    PLINUX_MDL      mdl;
+    PLINUX_MDL_MAP  mdlMap;
+    gckALLOCATOR    allocator;
+
+    gcmkHEADER_ARG("Os=0x%X Physical=0x%X Bytes=%lu", Os, Physical, Logical);
+
+    /* Verify the arguments. */
+    gcmkVERIFY_OBJECT(Os, gcvOBJ_OS);
+    gcmkVERIFY_ARGUMENT(Physical != gcvNULL);
+    gcmkVERIFY_ARGUMENT(Logical != gcvNULL);
+    gcmkVERIFY_ARGUMENT(PageCount != gcvNULL);
+
+    mdl = (PLINUX_MDL) Physical;
+    allocator = mdl->allocator;
+
+    MEMORY_LOCK(Os);
+
+    mdlMap = FindMdlMap(mdl, _GetProcessID());
+
+    if (mdlMap == gcvNULL)
+    {
+        mdlMap = _CreateMdlMap(mdl, _GetProcessID());
+
+        if (mdlMap == gcvNULL)
+        {
+            MEMORY_UNLOCK(Os);
+
+            gcmkFOOTER_ARG("*status=%d", gcvSTATUS_OUT_OF_MEMORY);
+            return gcvSTATUS_OUT_OF_MEMORY;
+        }
+    }
+
+    if (mdlMap->vmaAddr == gcvNULL)
+    {
+        status = allocator->ops->MapUser(allocator, mdl, mdlMap, Cacheable);
+
+        if (gcmIS_ERROR(status))
+        {
+            MEMORY_UNLOCK(Os);
+
+            gcmkFOOTER_ARG("*status=%d", status);
+            return status;
+        }
+    }
+
+    mdlMap->count++;
+
+    /* Convert pointer to MDL. */
+    *Logical = mdlMap->vmaAddr;
+
+    /* Return the page number according to the GPU page size. */
+    gcmkASSERT((PAGE_SIZE % 4096) == 0);
+    gcmkASSERT((PAGE_SIZE / 4096) >= 1);
+
+    *PageCount = mdl->numPages * (PAGE_SIZE / 4096);
+
+    MEMORY_UNLOCK(Os);
+
+    gcmkVERIFY_OK(gckOS_CacheFlush(
+        Os,
+        _GetProcessID(),
+        Physical,
+        gcvINVALID_ADDRESS,
+        (gctPOINTER)mdlMap->vmaAddr,
+        mdl->numPages * PAGE_SIZE
+        ));
+
+    /* Success. */
+    gcmkFOOTER_ARG("*Logical=0x%X *PageCount=%lu", *Logical, *PageCount);
+    return gcvSTATUS_OK;
+}
+
+/*******************************************************************************
+**
+**  gckOS_MapPages
+**
+**  Map paged memory into a page table.
+**
+**  INPUT:
+**
+**      gckOS Os
+**          Pointer to an gckOS object.
+**
+**      gctPHYS_ADDR Physical
+**          Physical address of the allocation.
+**
+**      gctSIZE_T PageCount
+**          Number of pages required for the physical address.
+**
+**      gctPOINTER PageTable
+**          Pointer to the page table to fill in.
+**
+**  OUTPUT:
+**
+**      Nothing.
+*/
+gceSTATUS
+gckOS_MapPages(
+    IN gckOS Os,
+    IN gctPHYS_ADDR Physical,
+    IN gctSIZE_T PageCount,
+    IN gctPOINTER PageTable
+    )
+{
+    return gckOS_MapPagesEx(Os,
+                            gcvCORE_MAJOR,
+                            Physical,
+                            PageCount,
+                            0,
+                            PageTable);
+}
+
+gceSTATUS
+gckOS_MapPagesEx(
+    IN gckOS Os,
+    IN gceCORE Core,
+    IN gctPHYS_ADDR Physical,
+    IN gctSIZE_T PageCount,
+    IN gctUINT32 Address,
+    IN gctPOINTER PageTable
+    )
+{
+    gceSTATUS status = gcvSTATUS_OK;
+    PLINUX_MDL  mdl;
+    gctUINT32*  table;
+    gctUINT32   offset;
+#if gcdNONPAGED_MEMORY_CACHEABLE
+    gckMMU      mmu;
+    PLINUX_MDL  mmuMdl;
+    gctUINT32   bytes;
+    gctPHYS_ADDR pageTablePhysical;
+#endif
+
+#if gcdPROCESS_ADDRESS_SPACE
+    gckKERNEL kernel = Os->device->kernels[Core];
+    gckMMU      mmu;
+#endif
+    gckALLOCATOR allocator;
+
+    gcmkHEADER_ARG("Os=0x%X Core=%d Physical=0x%X PageCount=%u PageTable=0x%X",
+                   Os, Core, Physical, PageCount, PageTable);
+
+    /* Verify the arguments. */
+    gcmkVERIFY_OBJECT(Os, gcvOBJ_OS);
+    gcmkVERIFY_ARGUMENT(Physical != gcvNULL);
+    gcmkVERIFY_ARGUMENT(PageCount > 0);
+    gcmkVERIFY_ARGUMENT(PageTable != gcvNULL);
+
+    /* Convert pointer to MDL. */
+    mdl = (PLINUX_MDL)Physical;
+
+    allocator = mdl->allocator;
+
+    gcmkTRACE_ZONE(
+        gcvLEVEL_INFO, gcvZONE_OS,
+        "%s(%d): Physical->0x%X PageCount->0x%X PagedMemory->?%d",
+        __FUNCTION__, __LINE__,
+        (gctUINT32)(gctUINTPTR_T)Physical,
+        (gctUINT32)(gctUINTPTR_T)PageCount,
+        mdl->pagedMem
+        );
+
+#if gcdPROCESS_ADDRESS_SPACE
+    gcmkONERROR(gckKERNEL_GetProcessMMU(kernel, &mmu));
+#endif
+
+    table = (gctUINT32 *)PageTable;
+#if gcdNONPAGED_MEMORY_CACHEABLE
+    mmu = Os->device->kernels[Core]->mmu;
+    bytes = PageCount * sizeof(*table);
+    mmuMdl = (PLINUX_MDL)mmu->pageTablePhysical;
+#endif
+
+     /* Get all the physical addresses and store them in the page table. */
+
+    offset = 0;
+    PageCount = PageCount / (PAGE_SIZE / 4096);
+
+    /* Try to get the user pages so DMA can happen. */
+    while (PageCount-- > 0)
+    {
+        gctUINT i;
+        gctPHYS_ADDR_T phys = ~0U;
+
+        if (mdl->pagedMem && !mdl->contiguous)
+        {
+            allocator->ops->Physical(allocator, mdl, offset, &phys);
+        }
+        else
+        {
+            if (!mdl->pagedMem)
+            {
+                gcmkTRACE_ZONE(
+                    gcvLEVEL_INFO, gcvZONE_OS,
+                    "%s(%d): we should not get this call for Non Paged Memory!",
+                    __FUNCTION__, __LINE__
+                    );
+            }
+
+            phys = page_to_phys(nth_page(mdl->u.contiguousPages, offset));
+        }
+
+        gcmkVERIFY_OK(gckOS_CPUPhysicalToGPUPhysical(Os, phys, &phys));
+
+#ifdef CONFIG_IOMMU_SUPPORT
+        if (Os->iommu)
+        {
+            gcmkTRACE_ZONE(
+                gcvLEVEL_INFO, gcvZONE_OS,
+                "%s(%d): Setup mapping in IOMMU %x => %x",
+                __FUNCTION__, __LINE__,
+                Address + (offset * PAGE_SIZE), phys
+                );
+
+            /* When use IOMMU, GPU use system PAGE_SIZE. */
+            gcmkONERROR(gckIOMMU_Map(
+                Os->iommu, Address + (offset * PAGE_SIZE), phys, PAGE_SIZE));
+        }
+        else
+#endif
+        {
+
+            {
+                for (i = 0; i < (PAGE_SIZE / 4096); i++)
+                {
+#if gcdPROCESS_ADDRESS_SPACE
+                    gctUINT32_PTR pageTableEntry;
+                    gckMMU_GetPageEntry(mmu, Address + (offset * 4096), &pageTableEntry);
+                    gcmkONERROR(
+                        gckMMU_SetPage(mmu,
+                            phys + (i * 4096),
+                            pageTableEntry));
+#else
+                    gcmkONERROR(
+                        gckMMU_SetPage(Os->device->kernels[Core]->mmu,
+                            phys + (i * 4096),
+                            table++));
+#endif
+                }
+            }
+        }
+
+        offset += 1;
+    }
+
+#if gcdNONPAGED_MEMORY_CACHEABLE
+    /* Get physical address of pageTable */
+    pageTablePhysical = (gctPHYS_ADDR)(mmuMdl->dmaHandle +
+                        ((gctUINT32 *)PageTable - mmu->pageTableLogical));
+
+    /* Flush the mmu page table cache. */
+    gcmkONERROR(gckOS_CacheClean(
+        Os,
+        _GetProcessID(),
+        gcvNULL,
+        pageTablePhysical,
+        PageTable,
+        bytes
+        ));
+#endif
+
+OnError:
+
+    /* Return the status. */
+    gcmkFOOTER();
+    return status;
+}
+
+gceSTATUS
+gckOS_UnmapPages(
+    IN gckOS Os,
+    IN gctSIZE_T PageCount,
+    IN gctUINT32 Address
+    )
+{
+#ifdef CONFIG_IOMMU_SUPPORT
+    if (Os->iommu)
+    {
+        gcmkVERIFY_OK(gckIOMMU_Unmap(
+            Os->iommu, Address, PageCount * PAGE_SIZE));
+    }
+#endif
+
+    return gcvSTATUS_OK;
+}
+
+/*******************************************************************************
+**
+**  gckOS_UnlockPages
+**
+**  Unlock memory allocated from the paged pool.
+**
+**  INPUT:
+**
+**      gckOS Os
+**          Pointer to an gckOS object.
+**
+**      gctPHYS_ADDR Physical
+**          Physical address of the allocation.
+**
+**      gctSIZE_T Bytes
+**          Number of bytes of the allocation.
+**
+**      gctPOINTER Logical
+**          Address of the mapped memory.
+**
+**  OUTPUT:
+**
+**      Nothing.
+*/
+gceSTATUS
+gckOS_UnlockPages(
+    IN gckOS Os,
+    IN gctPHYS_ADDR Physical,
+    IN gctSIZE_T Bytes,
+    IN gctPOINTER Logical
+    )
+{
+    PLINUX_MDL_MAP          mdlMap;
+    PLINUX_MDL              mdl = (PLINUX_MDL)Physical;
+    gckALLOCATOR            allocator = mdl->allocator;
+
+    gcmkHEADER_ARG("Os=0x%X Physical=0x%X Bytes=%u Logical=0x%X",
+                   Os, Physical, Bytes, Logical);
+
+    /* Verify the arguments. */
+    gcmkVERIFY_OBJECT(Os, gcvOBJ_OS);
+    gcmkVERIFY_ARGUMENT(Physical != gcvNULL);
+    gcmkVERIFY_ARGUMENT(Logical != gcvNULL);
+
+    MEMORY_LOCK(Os);
+
+    mdlMap = mdl->maps;
+
+    while (mdlMap != gcvNULL)
+    {
+        if ((mdlMap->vmaAddr != gcvNULL) && (_GetProcessID() == mdlMap->pid))
+        {
+            if (--mdlMap->count == 0)
+            {
+                allocator->ops->UnmapUser(
+                    allocator,
+                    mdlMap->vmaAddr,
+                    mdl->numPages * PAGE_SIZE);
+
+                mdlMap->vmaAddr = gcvNULL;
+            }
+        }
+
+        mdlMap = mdlMap->next;
+    }
+
+    MEMORY_UNLOCK(Os);
+
+    /* Success. */
+    gcmkFOOTER_NO();
+    return gcvSTATUS_OK;
+}
+
+
+/*******************************************************************************
+**
+**  gckOS_AllocateContiguous
+**
+**  Allocate memory from the contiguous pool.
+**
+**  INPUT:
+**
+**      gckOS Os
+**          Pointer to an gckOS object.
+**
+**      gctBOOL InUserSpace
+**          gcvTRUE if the pages need to be mapped into user space.
+**
+**      gctSIZE_T * Bytes
+**          Pointer to the number of bytes to allocate.
+**
+**  OUTPUT:
+**
+**      gctSIZE_T * Bytes
+**          Pointer to a variable that receives the number of bytes allocated.
+**
+**      gctPHYS_ADDR * Physical
+**          Pointer to a variable that receives the physical address of the
+**          memory allocation.
+**
+**      gctPOINTER * Logical
+**          Pointer to a variable that receives the logical address of the
+**          memory allocation.
+*/
+gceSTATUS
+gckOS_AllocateContiguous(
+    IN gckOS Os,
+    IN gctBOOL InUserSpace,
+    IN OUT gctSIZE_T * Bytes,
+    OUT gctPHYS_ADDR * Physical,
+    OUT gctPOINTER * Logical
+    )
+{
+    gceSTATUS status;
+
+    gcmkHEADER_ARG("Os=0x%X InUserSpace=%d *Bytes=%lu",
+                   Os, InUserSpace, gcmOPT_VALUE(Bytes));
+
+    /* Verify the arguments. */
+    gcmkVERIFY_OBJECT(Os, gcvOBJ_OS);
+    gcmkVERIFY_ARGUMENT(Bytes != gcvNULL);
+    gcmkVERIFY_ARGUMENT(*Bytes > 0);
+    gcmkVERIFY_ARGUMENT(Physical != gcvNULL);
+    gcmkVERIFY_ARGUMENT(Logical != gcvNULL);
+
+    /* Same as non-paged memory for now. */
+    gcmkONERROR(gckOS_AllocateNonPagedMemory(Os,
+                                             InUserSpace,
+                                             Bytes,
+                                             Physical,
+                                             Logical));
+
+    /* Success. */
+    gcmkFOOTER_ARG("*Bytes=%lu *Physical=0x%X *Logical=0x%X",
+                   *Bytes, *Physical, *Logical);
+    return gcvSTATUS_OK;
+
+OnError:
+    /* Return the status. */
+    gcmkFOOTER();
+    return status;
+}
+
+/*******************************************************************************
+**
+**  gckOS_FreeContiguous
+**
+**  Free memory allocated from the contiguous pool.
+**
+**  INPUT:
+**
+**      gckOS Os
+**          Pointer to an gckOS object.
+**
+**      gctPHYS_ADDR Physical
+**          Physical address of the allocation.
+**
+**      gctPOINTER Logical
+**          Logicval address of the allocation.
+**
+**      gctSIZE_T Bytes
+**          Number of bytes of the allocation.
+**
+**  OUTPUT:
+**
+**      Nothing.
+*/
+gceSTATUS
+gckOS_FreeContiguous(
+    IN gckOS Os,
+    IN gctPHYS_ADDR Physical,
+    IN gctPOINTER Logical,
+    IN gctSIZE_T Bytes
+    )
+{
+    gceSTATUS status;
+
+    gcmkHEADER_ARG("Os=0x%X Physical=0x%X Logical=0x%X Bytes=%lu",
+                   Os, Physical, Logical, Bytes);
+
+    /* Verify the arguments. */
+    gcmkVERIFY_OBJECT(Os, gcvOBJ_OS);
+    gcmkVERIFY_ARGUMENT(Physical != gcvNULL);
+    gcmkVERIFY_ARGUMENT(Logical != gcvNULL);
+    gcmkVERIFY_ARGUMENT(Bytes > 0);
+
+    /* Same of non-paged memory for now. */
+    gcmkONERROR(gckOS_FreeNonPagedMemory(Os, Bytes, Physical, Logical));
+
+    /* Success. */
+    gcmkFOOTER_NO();
+    return gcvSTATUS_OK;
+
+OnError:
+    /* Return the status. */
+    gcmkFOOTER();
+    return status;
+}
+
+
+/*******************************************************************************
+**
+**  gckOS_MapUserPointer
+**
+**  Map a pointer from the user process into the kernel address space.
+**
+**  INPUT:
+**
+**      gckOS Os
+**          Pointer to an gckOS object.
+**
+**      gctPOINTER Pointer
+**          Pointer in user process space that needs to be mapped.
+**
+**      gctSIZE_T Size
+**          Number of bytes that need to be mapped.
+**
+**  OUTPUT:
+**
+**      gctPOINTER * KernelPointer
+**          Pointer to a variable receiving the mapped pointer in kernel address
+**          space.
+*/
+gceSTATUS
+gckOS_MapUserPointer(
+    IN gckOS Os,
+    IN gctPOINTER Pointer,
+    IN gctSIZE_T Size,
+    OUT gctPOINTER * KernelPointer
+    )
+{
+    gctPOINTER buf = gcvNULL;
+    gctUINT32 len;
+
+    gcmkHEADER_ARG("Os=0x%X Pointer=0x%X Size=%lu", Os, Pointer, Size);
+
+    /* Verify the arguments. */
+    gcmkVERIFY_OBJECT(Os, gcvOBJ_OS);
+    gcmkVERIFY_ARGUMENT(Pointer != gcvNULL);
+    gcmkVERIFY_ARGUMENT(Size > 0);
+    gcmkVERIFY_ARGUMENT(KernelPointer != gcvNULL);
+
+    buf = kmalloc(Size, GFP_KERNEL | gcdNOWARN);
+    if (buf == gcvNULL)
+    {
+        gcmkTRACE(
+            gcvLEVEL_ERROR,
+            "%s(%d): Failed to allocate memory.",
+            __FUNCTION__, __LINE__
+            );
+
+        gcmkFOOTER_ARG("*status=%d", gcvSTATUS_OUT_OF_MEMORY);
+        return gcvSTATUS_OUT_OF_MEMORY;
+    }
+
+    len = copy_from_user(buf, Pointer, Size);
+    if (len != 0)
+    {
+        gcmkTRACE(
+            gcvLEVEL_ERROR,
+            "%s(%d): Failed to copy data from user.",
+            __FUNCTION__, __LINE__
+            );
+
+        if (buf != gcvNULL)
+        {
+            kfree(buf);
+        }
+
+        gcmkFOOTER_ARG("*status=%d", gcvSTATUS_GENERIC_IO);
+        return gcvSTATUS_GENERIC_IO;
+    }
+
+    *KernelPointer = buf;
+
+    gcmkFOOTER_ARG("*KernelPointer=0x%X", *KernelPointer);
+    return gcvSTATUS_OK;
+}
+
+/*******************************************************************************
+**
+**  gckOS_UnmapUserPointer
+**
+**  Unmap a user process pointer from the kernel address space.
+**
+**  INPUT:
+**
+**      gckOS Os
+**          Pointer to an gckOS object.
+**
+**      gctPOINTER Pointer
+**          Pointer in user process space that needs to be unmapped.
+**
+**      gctSIZE_T Size
+**          Number of bytes that need to be unmapped.
+**
+**      gctPOINTER KernelPointer
+**          Pointer in kernel address space that needs to be unmapped.
+**
+**  OUTPUT:
+**
+**      Nothing.
+*/
+gceSTATUS
+gckOS_UnmapUserPointer(
+    IN gckOS Os,
+    IN gctPOINTER Pointer,
+    IN gctSIZE_T Size,
+    IN gctPOINTER KernelPointer
+    )
+{
+    gctUINT32 len;
+
+    gcmkHEADER_ARG("Os=0x%X Pointer=0x%X Size=%lu KernelPointer=0x%X",
+                   Os, Pointer, Size, KernelPointer);
+
+
+    /* Verify the arguments. */
+    gcmkVERIFY_OBJECT(Os, gcvOBJ_OS);
+    gcmkVERIFY_ARGUMENT(Pointer != gcvNULL);
+    gcmkVERIFY_ARGUMENT(Size > 0);
+    gcmkVERIFY_ARGUMENT(KernelPointer != gcvNULL);
+
+    len = copy_to_user(Pointer, KernelPointer, Size);
+
+    kfree(KernelPointer);
+
+    if (len != 0)
+    {
+        gcmkTRACE(
+            gcvLEVEL_ERROR,
+            "%s(%d): Failed to copy data to user.",
+            __FUNCTION__, __LINE__
+            );
+
+        gcmkFOOTER_ARG("status=%d", gcvSTATUS_GENERIC_IO);
+        return gcvSTATUS_GENERIC_IO;
+    }
+
+    gcmkFOOTER_NO();
+    return gcvSTATUS_OK;
+}
+
+/*******************************************************************************
+**
+**  gckOS_QueryNeedCopy
+**
+**  Query whether the memory can be accessed or mapped directly or it has to be
+**  copied.
+**
+**  INPUT:
+**
+**      gckOS Os
+**          Pointer to an gckOS object.
+**
+**      gctUINT32 ProcessID
+**          Process ID of the current process.
+**
+**  OUTPUT:
+**
+**      gctBOOL_PTR NeedCopy
+**          Pointer to a boolean receiving gcvTRUE if the memory needs a copy or
+**          gcvFALSE if the memory can be accessed or mapped dircetly.
+*/
+gceSTATUS
+gckOS_QueryNeedCopy(
+    IN gckOS Os,
+    IN gctUINT32 ProcessID,
+    OUT gctBOOL_PTR NeedCopy
+    )
+{
+    gcmkHEADER_ARG("Os=0x%X ProcessID=%d", Os, ProcessID);
+
+    /* Verify the arguments. */
+    gcmkVERIFY_OBJECT(Os, gcvOBJ_OS);
+    gcmkVERIFY_ARGUMENT(NeedCopy != gcvNULL);
+
+    /* We need to copy data. */
+    *NeedCopy = gcvTRUE;
+
+    /* Success. */
+    gcmkFOOTER_ARG("*NeedCopy=%d", *NeedCopy);
+    return gcvSTATUS_OK;
+}
+
+/*******************************************************************************
+**
+**  gckOS_CopyFromUserData
+**
+**  Copy data from user to kernel memory.
+**
+**  INPUT:
+**
+**      gckOS Os
+**          Pointer to an gckOS object.
+**
+**      gctPOINTER KernelPointer
+**          Pointer to kernel memory.
+**
+**      gctPOINTER Pointer
+**          Pointer to user memory.
+**
+**      gctSIZE_T Size
+**          Number of bytes to copy.
+**
+**  OUTPUT:
+**
+**      Nothing.
+*/
+gceSTATUS
+gckOS_CopyFromUserData(
+    IN gckOS Os,
+    IN gctPOINTER KernelPointer,
+    IN gctPOINTER Pointer,
+    IN gctSIZE_T Size
+    )
+{
+    gceSTATUS status;
+
+    gcmkHEADER_ARG("Os=0x%X KernelPointer=0x%X Pointer=0x%X Size=%lu",
+                   Os, KernelPointer, Pointer, Size);
+
+    /* Verify the arguments. */
+    gcmkVERIFY_OBJECT(Os, gcvOBJ_OS);
+    gcmkVERIFY_ARGUMENT(KernelPointer != gcvNULL);
+    gcmkVERIFY_ARGUMENT(Pointer != gcvNULL);
+    gcmkVERIFY_ARGUMENT(Size > 0);
+
+    /* Copy data from user. */
+    if (copy_from_user(KernelPointer, Pointer, Size) != 0)
+    {
+        /* Could not copy all the bytes. */
+        gcmkONERROR(gcvSTATUS_OUT_OF_RESOURCES);
+    }
+
+    /* Success. */
+    gcmkFOOTER_NO();
+    return gcvSTATUS_OK;
+
+OnError:
+    /* Return the status. */
+    gcmkFOOTER();
+    return status;
+}
+
+/*******************************************************************************
+**
+**  gckOS_CopyToUserData
+**
+**  Copy data from kernel to user memory.
+**
+**  INPUT:
+**
+**      gckOS Os
+**          Pointer to an gckOS object.
+**
+**      gctPOINTER KernelPointer
+**          Pointer to kernel memory.
+**
+**      gctPOINTER Pointer
+**          Pointer to user memory.
+**
+**      gctSIZE_T Size
+**          Number of bytes to copy.
+**
+**  OUTPUT:
+**
+**      Nothing.
+*/
+gceSTATUS
+gckOS_CopyToUserData(
+    IN gckOS Os,
+    IN gctPOINTER KernelPointer,
+    IN gctPOINTER Pointer,
+    IN gctSIZE_T Size
+    )
+{
+    gceSTATUS status;
+
+    gcmkHEADER_ARG("Os=0x%X KernelPointer=0x%X Pointer=0x%X Size=%lu",
+                   Os, KernelPointer, Pointer, Size);
+
+    /* Verify the arguments. */
+    gcmkVERIFY_OBJECT(Os, gcvOBJ_OS);
+    gcmkVERIFY_ARGUMENT(KernelPointer != gcvNULL);
+    gcmkVERIFY_ARGUMENT(Pointer != gcvNULL);
+    gcmkVERIFY_ARGUMENT(Size > 0);
+
+    /* Copy data to user. */
+    if (copy_to_user(Pointer, KernelPointer, Size) != 0)
+    {
+        /* Could not copy all the bytes. */
+        gcmkONERROR(gcvSTATUS_OUT_OF_RESOURCES);
+    }
+
+    /* Success. */
+    gcmkFOOTER_NO();
+    return gcvSTATUS_OK;
+
+OnError:
+    /* Return the status. */
+    gcmkFOOTER();
+    return status;
+}
+
+/*******************************************************************************
+**
+**  gckOS_WriteMemory
+**
+**  Write data to a memory.
+**
+**  INPUT:
+**
+**      gckOS Os
+**          Pointer to an gckOS object.
+**
+**      gctPOINTER Address
+**          Address of the memory to write to.
+**
+**      gctUINT32 Data
+**          Data for register.
+**
+**  OUTPUT:
+**
+**      Nothing.
+*/
+gceSTATUS
+gckOS_WriteMemory(
+    IN gckOS Os,
+    IN gctPOINTER Address,
+    IN gctUINT32 Data
+    )
+{
+    gceSTATUS status;
+    gcmkHEADER_ARG("Os=0x%X Address=0x%X Data=%u", Os, Address, Data);
+
+    /* Verify the arguments. */
+    gcmkVERIFY_ARGUMENT(Address != gcvNULL);
+
+    /* Write memory. */
+    if (access_ok(VERIFY_WRITE, Address, 4))
+    {
+        /* User address. */
+        if(put_user(Data, (gctUINT32*)Address))
+        {
+            gcmkONERROR(gcvSTATUS_INVALID_ADDRESS);
+        }
+    }
+    else
+    {
+        /* Kernel address. */
+        *(gctUINT32 *)Address = Data;
+    }
+
+    /* Success. */
+    gcmkFOOTER_NO();
+    return gcvSTATUS_OK;
+
+OnError:
+    gcmkFOOTER();
+    return status;
+}
+
+/*******************************************************************************
+**
+**  gckOS_MapUserMemory
+**
+**  Lock down a user buffer and return an DMA'able address to be used by the
+**  hardware to access it.
+**
+**  INPUT:
+**
+**      gctPOINTER Memory
+**          Pointer to memory to lock down.
+**
+**      gctSIZE_T Size
+**          Size in bytes of the memory to lock down.
+**
+**  OUTPUT:
+**
+**      gctPOINTER * Info
+**          Pointer to variable receiving the information record required by
+**          gckOS_UnmapUserMemory.
+**
+**      gctUINT32_PTR Address
+**          Pointer to a variable that will receive the address DMA'able by the
+**          hardware.
+*/
+gceSTATUS
+gckOS_MapUserMemory(
+    IN gckOS Os,
+    IN gceCORE Core,
+    IN gctPOINTER Memory,
+    IN gctUINT32 Physical,
+    IN gctSIZE_T Size,
+    OUT gctPOINTER * Info,
+    OUT gctUINT32_PTR Address
+    )
+{
+    gceSTATUS status;
+
+    gcmkHEADER_ARG("Os=0x%x Core=%d Memory=0x%x Size=%lu", Os, Core, Memory, Size);
+
+#if gcdSECURE_USER
+    gcmkONERROR(gckOS_AddMapping(Os, *Address, Memory, Size));
+
+    gcmkFOOTER_NO();
+    return gcvSTATUS_OK;
+
+OnError:
+    gcmkFOOTER();
+    return status;
+#else
+{
+    gctSIZE_T pageCount, i, j;
+    gctUINT32_PTR pageTable;
+    gctUINT32 address = 0, physical = ~0U;
+    gctUINTPTR_T start, end, memory;
+    gctUINT32 offset;
+    gctINT result = 0;
+#if gcdPROCESS_ADDRESS_SPACE
+    gckMMU mmu;
+#endif
+
+    gcsPageInfo_PTR info = gcvNULL;
+    struct page **pages = gcvNULL;
+
+    /* Verify the arguments. */
+    gcmkVERIFY_OBJECT(Os, gcvOBJ_OS);
+    gcmkVERIFY_ARGUMENT(Memory != gcvNULL || Physical != ~0U);
+    gcmkVERIFY_ARGUMENT(Size > 0);
+    gcmkVERIFY_ARGUMENT(Info != gcvNULL);
+    gcmkVERIFY_ARGUMENT(Address != gcvNULL);
+
+    do
+    {
+        gctSIZE_T extraPage;
+
+        memory = (gctUINTPTR_T) Memory;
+
+        /* Get the number of required pages. */
+        end = (memory + Size + PAGE_SIZE - 1) >> PAGE_SHIFT;
+        start = memory >> PAGE_SHIFT;
+        pageCount = end - start;
+
+        /* Allocate extra page to avoid cache overflow */
+        extraPage = 2;
+
+
+        gcmkTRACE_ZONE(
+            gcvLEVEL_INFO, gcvZONE_OS,
+            "%s(%d): pageCount: %d.",
+            __FUNCTION__, __LINE__,
+            pageCount
+            );
+
+        /* Overflow. */
+        if ((memory + Size) < memory)
+        {
+            gcmkFOOTER_ARG("status=%d", gcvSTATUS_INVALID_ARGUMENT);
+            return gcvSTATUS_INVALID_ARGUMENT;
+        }
+
+        MEMORY_MAP_LOCK(Os);
+
+        /* Allocate the Info struct. */
+        info = (gcsPageInfo_PTR)kmalloc(sizeof(gcsPageInfo), GFP_KERNEL | gcdNOWARN);
+
+        if (info == gcvNULL)
+        {
+            status = gcvSTATUS_OUT_OF_MEMORY;
+            break;
+        }
+
+        info->extraPage = 0;
+
+        /* Allocate the array of page addresses. */
+        pages = (struct page **)kmalloc((pageCount + extraPage) * sizeof(struct page *), GFP_KERNEL | gcdNOWARN);
+
+        if (pages == gcvNULL)
+        {
+            status = gcvSTATUS_OUT_OF_MEMORY;
+            break;
+        }
+
+        if (Physical != ~0U)
+        {
+            for (i = 0; i < pageCount; i++)
+            {
+                pages[i] = pfn_to_page((Physical >> PAGE_SHIFT) + i);
+
+                if (pfn_valid(page_to_pfn(pages[i])))
+                {
+                    get_page(pages[i]);
+                }
+            }
+        }
+        else
+        {
+            /* Get the user pages. */
+            down_read(&current->mm->mmap_sem);
+
+            result = get_user_pages(current,
+                    current->mm,
+                    memory & PAGE_MASK,
+                    pageCount,
+                    1,
+                    0,
+                    pages,
+                    gcvNULL
+                    );
+
+            up_read(&current->mm->mmap_sem);
+
+            if (result <=0 || result < pageCount)
+            {
+                struct vm_area_struct *vma;
+
+                /* Release the pages if any. */
+                gckOS_DebugTrace(gcvLEVEL_INFO,
+                        "get_user_pages failed (%d/%d pages), trying to acquire from CPU page table\n",
+                        result, pageCount);
+                if (result > 0)
+                {
+                    for (i = 0; i < result; i++)
+                    {
+                        if (pages[i] == gcvNULL)
+                        {
+                            break;
+                        }
+
+                        page_cache_release(pages[i]);
+                        pages[i] = gcvNULL;
+                    }
+
+                    result = 0;
+                }
+
+                /*
+                 * get_user_pages didn't work, look for the pages in the
+                 * appropriate memory region of the process. Region might
+                 * correspond to memory mapped I/O.
+                 */
+                vma = find_vma(current->mm, memory);
+
+                if (vma &&
+                        ((vma->vm_flags & VM_PFNMAP) || (vma->vm_flags & VM_IO)))
+                {
+                    pte_t       * pte;
+                    spinlock_t  * ptl;
+                    gctUINTPTR_T logical = memory;
+
+                    /*
+                     * `find_vma` finds memory region with an end point past the
+                     * given address, make sure that the address is within the
+                     * returned vma region.
+                     */
+                    if (logical < vma->vm_start)
+                    {
+                        gckOS_DebugTrace(gcvLEVEL_ERROR,
+                                "address: 0x%08x is outside the region returned by find_vma (start: 0x%08x\n",
+                                logical, vma->vm_start);
+                        gcmkONERROR(gcvSTATUS_OUT_OF_RESOURCES);
+                    }
+                    /* check for end address */
+                    if (logical + Size > vma->vm_end)
+                    {
+                        gckOS_DebugTrace(gcvLEVEL_ERROR,
+                                "end address 0x%08x is outside the region returned by find_vma (end: 0x%08x\n",
+                                logical + Size, vma->vm_end);
+                        gcmkONERROR(gcvSTATUS_OUT_OF_RESOURCES);
+                    }
+
+                    for (i = 0; i < pageCount; i++)
+                    {
+                        pgd_t * pgd = pgd_offset(current->mm, logical);
+                        pud_t * pud = pud_offset(pgd, logical);
+
+                        if (pud)
+                        {
+                            pmd_t * pmd = pmd_offset(pud, logical);
+                            pte = pte_offset_map_lock(current->mm, pmd, logical, &ptl);
+                            if (!pte)
+                            {
+                                gcmkONERROR(gcvSTATUS_OUT_OF_RESOURCES);
+                            }
+                        }
+                        else
+                        {
+                            gcmkONERROR(gcvSTATUS_OUT_OF_RESOURCES);
+                        }
+
+                        pages[i] = pte_page(*pte);
+                        /*
+                         * inc refcount for the page, refcount is decremented by
+                         * the kernel when the vma is unmapped.
+                         */
+                        get_page(pages[i]);
+                        pte_unmap_unlock(pte, ptl);
+
+                        /*
+                         * TODO: pages[i] is NULL for Tiler memory. Need to
+                         * handle them.
+                         */
+                        if (pages[i] == gcvNULL)
+                        {
+                            /* FIXME */
+                            gckOS_DebugTrace(gcvLEVEL_ERROR,
+                                    "page table returned NULL page, could be TILER memory which is currently not handled\n");
+                            gcmkONERROR(gcvSTATUS_NOT_SUPPORTED);
+                        }
+
+                        /* Advance to next. */
+                        logical += PAGE_SIZE;
+                    }
+                }
+                else
+                {
+                    gckOS_DebugTrace(gcvLEVEL_ERROR,
+                            "find_vma returned NULL or uidentified region\n");
+                    gcmkONERROR(gcvSTATUS_OUT_OF_RESOURCES);
+                }
+
+                /* Check if this memory is contiguous for old mmu. */
+                if (Os->device->kernels[Core]->hardware->mmuVersion == 0)
+                {
+                    for (i = 1; i < pageCount; i++)
+                    {
+                        if (pages[i] != nth_page(pages[0], i))
+                        {
+                            /* Non-contiguous. */
+                            break;
+                        }
+                    }
+
+                    if (i == pageCount)
+                    {
+                        /* Contiguous memory. */
+                        physical = page_to_phys(pages[0]) | (memory & ~PAGE_MASK);
+
+                        if (!((physical - Os->device->baseAddress) & 0x80000000))
+                        {
+                            gctPHYS_ADDR_T gpuPhysical;
+                            kfree(pages);
+                            pages = gcvNULL;
+
+                            info->pages = gcvNULL;
+                            info->pageTable = gcvNULL;
+
+                            MEMORY_MAP_UNLOCK(Os);
+
+                            *Address = physical - Os->device->baseAddress;
+                            *Info    = info;
+
+                            gcmkVERIFY_OK(
+                                gckOS_CPUPhysicalToGPUPhysical(Os, *Address, &gpuPhysical));
+
+                            gcmkSAFECASTPHYSADDRT(*Address, gpuPhysical);
+
+                            gcmkFOOTER_ARG("*Info=0x%X *Address=0x%08x",
+                                           *Info, *Address);
+
+                            return gcvSTATUS_OK;
+                        }
+                    }
+                }
+
+                /* Reference pages. */
+                for (i = 0; i < pageCount; i++)
+                {
+                    if (pfn_valid(page_to_pfn(pages[i])))
+                    {
+                        get_page(pages[i]);
+                    }
+                }
+            }
+        }
+
+        for (i = 0; i < pageCount; i++)
+        {
+#ifdef CONFIG_ARM
+            gctUINT32 data;
+            get_user(data, (gctUINT32*)((memory & PAGE_MASK) + i * PAGE_SIZE));
+#endif
+
+            /* Flush(clean) the data cache. */
+            gcmkONERROR(gckOS_CacheFlush(Os, _GetProcessID(), gcvNULL,
+                             page_to_phys(pages[i]),
+                             (gctPOINTER)(memory & PAGE_MASK) + i*PAGE_SIZE,
+                             PAGE_SIZE));
+        }
+
+#if gcdPROCESS_ADDRESS_SPACE
+        gcmkONERROR(gckKERNEL_GetProcessMMU(Os->device->kernels[Core], &mmu));
+#endif
+
+        if (extraPage)
+        {
+            for (i = 0; i < extraPage; i++)
+            {
+                pages[pageCount++] = Os->paddingPage;
+            }
+            info->extraPage = extraPage;
+        }
+
+        {
+#if gcdPROCESS_ADDRESS_SPACE
+            /* Allocate pages inside the page table. */
+            gcmkERR_BREAK(gckMMU_AllocatePages(mmu,
+                                              pageCount * (PAGE_SIZE/4096),
+                                              (gctPOINTER *) &pageTable,
+                                              &address));
+#else
+            /* Allocate pages inside the page table. */
+            gcmkERR_BREAK(gckMMU_AllocatePages(Os->device->kernels[Core]->mmu,
+                                              pageCount * (PAGE_SIZE/4096),
+                                              (gctPOINTER *) &pageTable,
+                                              &address));
+#endif
+        }
+
+        /* Fill the page table. */
+        for (i = 0; i < pageCount; i++)
+        {
+            gctPHYS_ADDR_T phys;
+            gctUINT32_PTR tab = pageTable + i * (PAGE_SIZE/4096);
+
+#if gcdPROCESS_ADDRESS_SPACE
+            gckMMU_GetPageEntry(mmu, address + i * 4096, &tab);
+#endif
+            phys = page_to_phys(pages[i]);
+
+#ifdef CONFIG_IOMMU_SUPPORT
+            if (Os->iommu)
+            {
+                gcmkTRACE_ZONE(
+                    gcvLEVEL_INFO, gcvZONE_OS,
+                    "%s(%d): Setup mapping in IOMMU %x => %x",
+                    __FUNCTION__, __LINE__,
+                    Address + (i * PAGE_SIZE), phys
+                    );
+
+                gcmkONERROR(gckIOMMU_Map(
+                    Os->iommu, address + i * PAGE_SIZE, phys, PAGE_SIZE));
+            }
+            else
+#endif
+            {
+
+                {
+                    /* Get the physical address from page struct. */
+                    gcmkONERROR(
+                        gckMMU_SetPage(Os->device->kernels[Core]->mmu,
+                                       phys,
+                                       tab));
+                }
+
+                for (j = 1; j < (PAGE_SIZE/4096); j++)
+                {
+                    pageTable[i * (PAGE_SIZE/4096) + j] = pageTable[i * (PAGE_SIZE/4096)] + 4096 * j;
+                }
+            }
+
+#if !gcdPROCESS_ADDRESS_SPACE
+            gcmkTRACE_ZONE(
+                gcvLEVEL_INFO, gcvZONE_OS,
+                "%s(%d): pageTable[%d]: 0x%X 0x%X.",
+                __FUNCTION__, __LINE__,
+                i, phys, pageTable[i]);
+#endif
+        }
+
+        {
+#if gcdPROCESS_ADDRESS_SPACE
+            info->mmu = mmu;
+            gcmkONERROR(gckMMU_Flush(mmu));
+#else
+            gcmkONERROR(gckMMU_Flush(Os->device->kernels[Core]->mmu, gcvSURF_TYPE_UNKNOWN));
+#endif
+        }
+        info->address = address;
+
+        /* Save pointer to page table. */
+        info->pageTable = pageTable;
+        info->pages = pages;
+
+        *Info = (gctPOINTER) info;
+
+        gcmkTRACE_ZONE(
+            gcvLEVEL_INFO, gcvZONE_OS,
+            "%s(%d): info->pages: 0x%X, info->pageTable: 0x%X, info: 0x%X.",
+            __FUNCTION__, __LINE__,
+            info->pages,
+            info->pageTable,
+            info
+            );
+
+        offset = (Physical != ~0U)
+               ? (Physical & ~PAGE_MASK)
+               : (memory & ~PAGE_MASK);
+
+        /* Return address. */
+        *Address = address + offset;
+
+        gcmkTRACE_ZONE(
+            gcvLEVEL_INFO, gcvZONE_OS,
+            "%s(%d): Address: 0x%X.",
+            __FUNCTION__, __LINE__,
+            *Address
+            );
+
+        /* Success. */
+        status = gcvSTATUS_OK;
+    }
+    while (gcvFALSE);
+
+OnError:
+
+    if (gcmIS_ERROR(status))
+    {
+        gcmkTRACE(
+            gcvLEVEL_ERROR,
+            "%s(%d): error occured: %d.",
+            __FUNCTION__, __LINE__,
+            status
+            );
+
+        /* Release page array. */
+        if (result > 0 && pages != gcvNULL)
+        {
+            gcmkTRACE(
+                gcvLEVEL_ERROR,
+                "%s(%d): error: page table is freed.",
+                __FUNCTION__, __LINE__
+                );
+
+            for (i = 0; i < result; i++)
+            {
+                if (pages[i] == gcvNULL)
+                {
+                    break;
+                }
+                page_cache_release(pages[i]);
+            }
+        }
+
+        if (info!= gcvNULL && pages != gcvNULL)
+        {
+            gcmkTRACE(
+                gcvLEVEL_ERROR,
+                "%s(%d): error: pages is freed.",
+                __FUNCTION__, __LINE__
+                );
+
+            /* Free the page table. */
+            kfree(pages);
+            info->pages = gcvNULL;
+        }
+
+        /* Release page info struct. */
+        if (info != gcvNULL)
+        {
+            gcmkTRACE(
+                gcvLEVEL_ERROR,
+                "%s(%d): error: info is freed.",
+                __FUNCTION__, __LINE__
+                );
+
+            /* Free the page info struct. */
+            kfree(info);
+            *Info = gcvNULL;
+        }
+    }
+
+    MEMORY_MAP_UNLOCK(Os);
+
+    /* Return the status. */
+    if (gcmIS_SUCCESS(status))
+    {
+        gcmkFOOTER_ARG("*Info=0x%X *Address=0x%08x", *Info, *Address);
+    }
+    else
+    {
+        gcmkFOOTER();
+    }
+
+    return status;
+}
+#endif
+}
+
+/*******************************************************************************
+**
+**  gckOS_UnmapUserMemory
+**
+**  Unlock a user buffer and that was previously locked down by
+**  gckOS_MapUserMemory.
+**
+**  INPUT:
+**
+**      gctPOINTER Memory
+**          Pointer to memory to unlock.
+**
+**      gctSIZE_T Size
+**          Size in bytes of the memory to unlock.
+**
+**      gctPOINTER Info
+**          Information record returned by gckOS_MapUserMemory.
+**
+**      gctUINT32_PTR Address
+**          The address returned by gckOS_MapUserMemory.
+**
+**  OUTPUT:
+**
+**      Nothing.
+*/
+gceSTATUS
+gckOS_UnmapUserMemory(
+    IN gckOS Os,
+    IN gceCORE Core,
+    IN gctPOINTER Memory,
+    IN gctSIZE_T Size,
+    IN gctPOINTER Info,
+    IN gctUINT32 Address
+    )
+{
+    gceSTATUS status;
+
+    gcmkHEADER_ARG("Os=0x%X Core=%d Memory=0x%X Size=%lu Info=0x%X Address0x%08x",
+                   Os, Core, Memory, Size, Info, Address);
+
+#if gcdSECURE_USER
+    gcmkONERROR(gckOS_RemoveMapping(Os, Memory, Size));
+
+    gcmkFOOTER_NO();
+    return gcvSTATUS_OK;
+
+OnError:
+    gcmkFOOTER();
+    return status;
+#else
+{
+    gctUINTPTR_T memory, start, end;
+    gcsPageInfo_PTR info;
+    gctSIZE_T pageCount, i;
+    struct page **pages;
+
+    /* Verify the arguments. */
+    gcmkVERIFY_OBJECT(Os, gcvOBJ_OS);
+    gcmkVERIFY_ARGUMENT(Memory != gcvNULL);
+    gcmkVERIFY_ARGUMENT(Size > 0);
+    gcmkVERIFY_ARGUMENT(Info != gcvNULL);
+
+    do
+    {
+        info = (gcsPageInfo_PTR) Info;
+
+        pages = info->pages;
+
+        gcmkTRACE_ZONE(
+            gcvLEVEL_INFO, gcvZONE_OS,
+            "%s(%d): info=0x%X, pages=0x%X.",
+            __FUNCTION__, __LINE__,
+            info, pages
+            );
+
+        /* Invalid page array. */
+        if (pages == gcvNULL && info->pageTable == gcvNULL)
+        {
+            kfree(info);
+
+            gcmkFOOTER_NO();
+            return gcvSTATUS_OK;
+        }
+
+        memory = (gctUINTPTR_T)Memory;
+        end = (memory + Size + PAGE_SIZE - 1) >> PAGE_SHIFT;
+        start = memory >> PAGE_SHIFT;
+        pageCount = end - start;
+
+        /* Overflow. */
+        if ((memory + Size) < memory)
+        {
+            gcmkFOOTER_ARG("status=%d", gcvSTATUS_INVALID_ARGUMENT);
+            return gcvSTATUS_INVALID_ARGUMENT;
+        }
+
+        gcmkTRACE_ZONE(
+            gcvLEVEL_INFO, gcvZONE_OS,
+            "%s(%d): memory: 0x%X, pageCount: %d, pageTable: 0x%X.",
+            __FUNCTION__, __LINE__,
+            memory, pageCount, info->pageTable
+            );
+
+        MEMORY_MAP_LOCK(Os);
+
+        gcmkASSERT(info->pageTable != gcvNULL);
+
+        if (info->extraPage)
+        {
+            pageCount += info->extraPage;
+        }
+
+        {
+            /* Free the pages from the MMU. */
+#if gcdPROCESS_ADDRESS_SPACE
+            gcmkERR_BREAK(gckMMU_FreePagesEx(info->mmu,
+                info->address,
+                pageCount * (PAGE_SIZE/4096)
+                ));
+
+#else
+            gcmkERR_BREAK(gckMMU_FreePages(Os->device->kernels[Core]->mmu,
+                                          info->pageTable,
+                                          pageCount * (PAGE_SIZE/4096)
+                                          ));
+#endif
+
+            gcmkERR_BREAK(gckOS_UnmapPages(
+                Os,
+                pageCount * (PAGE_SIZE/4096),
+                info->address
+                ));
+        }
+
+        if (info->extraPage)
+        {
+            pageCount -= info->extraPage;
+            info->extraPage = 0;
+        }
+
+        /* Release the page cache. */
+        if (pages)
+        {
+            for (i = 0; i < pageCount; i++)
+            {
+                gcmkTRACE_ZONE(
+                    gcvLEVEL_INFO, gcvZONE_OS,
+                    "%s(%d): pages[%d]: 0x%X.",
+                    __FUNCTION__, __LINE__,
+                    i, pages[i]
+                    );
+
+                if (!PageReserved(pages[i]))
+                {
+                     SetPageDirty(pages[i]);
+                }
+
+                if (pfn_valid(page_to_pfn(pages[i])))
+                {
+                    page_cache_release(pages[i]);
+                }
+            }
+        }
+
+        /* Success. */
+        status = gcvSTATUS_OK;
+    }
+    while (gcvFALSE);
+
+    if (info != gcvNULL)
+    {
+        /* Free the page array. */
+        if (info->pages != gcvNULL)
+        {
+            kfree(info->pages);
+        }
+
+        kfree(info);
+    }
+
+    MEMORY_MAP_UNLOCK(Os);
+
+    /* Return the status. */
+    gcmkFOOTER();
+    return status;
+}
+#endif
+}
+
+/*******************************************************************************
+**
+**  gckOS_GetBaseAddress
+**
+**  Get the base address for the physical memory.
+**
+**  INPUT:
+**
+**      gckOS Os
+**          Pointer to the gckOS object.
+**
+**  OUTPUT:
+**
+**      gctUINT32_PTR BaseAddress
+**          Pointer to a variable that will receive the base address.
+*/
+gceSTATUS
+gckOS_GetBaseAddress(
+    IN gckOS Os,
+    OUT gctUINT32_PTR BaseAddress
+    )
+{
+    gcmkHEADER_ARG("Os=0x%X", Os);
+
+    /* Verify the arguments. */
+    gcmkVERIFY_OBJECT(Os, gcvOBJ_OS);
+    gcmkVERIFY_ARGUMENT(BaseAddress != gcvNULL);
+
+    /* Return base address. */
+    *BaseAddress = Os->device->baseAddress;
+
+    /* Success. */
+    gcmkFOOTER_ARG("*BaseAddress=0x%08x", *BaseAddress);
+    return gcvSTATUS_OK;
+}
+
+gceSTATUS
+gckOS_SuspendInterrupt(
+    IN gckOS Os
+    )
+{
+    return gckOS_SuspendInterruptEx(Os, gcvCORE_MAJOR);
+}
+
+gceSTATUS
+gckOS_SuspendInterruptEx(
+    IN gckOS Os,
+    IN gceCORE Core
+    )
+{
+    gcmkHEADER_ARG("Os=0x%X Core=%d", Os, Core);
+
+    /* Verify the arguments. */
+    gcmkVERIFY_OBJECT(Os, gcvOBJ_OS);
+
+    disable_irq(Os->device->irqLines[Core]);
+
+    gcmkFOOTER_NO();
+    return gcvSTATUS_OK;
+}
+
+gceSTATUS
+gckOS_ResumeInterrupt(
+    IN gckOS Os
+    )
+{
+    return gckOS_ResumeInterruptEx(Os, gcvCORE_MAJOR);
+}
+
+gceSTATUS
+gckOS_ResumeInterruptEx(
+    IN gckOS Os,
+    IN gceCORE Core
+    )
+{
+    gcmkHEADER_ARG("Os=0x%X Core=%d", Os, Core);
+
+    /* Verify the arguments. */
+    gcmkVERIFY_OBJECT(Os, gcvOBJ_OS);
+
+    enable_irq(Os->device->irqLines[Core]);
+
+    gcmkFOOTER_NO();
+    return gcvSTATUS_OK;
+}
+
+gceSTATUS
+gckOS_MemCopy(
+    IN gctPOINTER Destination,
+    IN gctCONST_POINTER Source,
+    IN gctSIZE_T Bytes
+    )
+{
+    gcmkHEADER_ARG("Destination=0x%X Source=0x%X Bytes=%lu",
+                   Destination, Source, Bytes);
+
+    gcmkVERIFY_ARGUMENT(Destination != gcvNULL);
+    gcmkVERIFY_ARGUMENT(Source != gcvNULL);
+    gcmkVERIFY_ARGUMENT(Bytes > 0);
+
+    memcpy(Destination, Source, Bytes);
+
+    gcmkFOOTER_NO();
+    return gcvSTATUS_OK;
+}
+
+gceSTATUS
+gckOS_ZeroMemory(
+    IN gctPOINTER Memory,
+    IN gctSIZE_T Bytes
+    )
+{
+    gcmkHEADER_ARG("Memory=0x%X Bytes=%lu", Memory, Bytes);
+
+    gcmkVERIFY_ARGUMENT(Memory != gcvNULL);
+    gcmkVERIFY_ARGUMENT(Bytes > 0);
+
+    memset(Memory, 0, Bytes);
+
+    gcmkFOOTER_NO();
+    return gcvSTATUS_OK;
+}
+
+/*******************************************************************************
+********************************* Cache Control ********************************
+*******************************************************************************/
+
+/*******************************************************************************
+**  gckOS_CacheClean
+**
+**  Clean the cache for the specified addresses.  The GPU is going to need the
+**  data.  If the system is allocating memory as non-cachable, this function can
+**  be ignored.
+**
+**  ARGUMENTS:
+**
+**      gckOS Os
+**          Pointer to gckOS object.
+**
+**      gctUINT32 ProcessID
+**          Process ID Logical belongs.
+**
+**      gctPHYS_ADDR Handle
+**          Physical address handle.  If gcvNULL it is video memory.
+**
+**      gctPOINTER Physical
+**          Physical address to flush.
+**
+**      gctPOINTER Logical
+**          Logical address to flush.
+**
+**      gctSIZE_T Bytes
+**          Size of the address range in bytes to flush.
+*/
+gceSTATUS
+gckOS_CacheClean(
+    IN gckOS Os,
+    IN gctUINT32 ProcessID,
+    IN gctPHYS_ADDR Handle,
+    IN gctPHYS_ADDR_T Physical,
+    IN gctPOINTER Logical,
+    IN gctSIZE_T Bytes
+    )
+{
+    gcsPLATFORM * platform;
+
+    gcmkHEADER_ARG("Os=0x%X ProcessID=%d Handle=0x%X Logical=0x%X Bytes=%lu",
+                   Os, ProcessID, Handle, Logical, Bytes);
+
+    /* Verify the arguments. */
+    gcmkVERIFY_OBJECT(Os, gcvOBJ_OS);
+    gcmkVERIFY_ARGUMENT(Logical != gcvNULL);
+    gcmkVERIFY_ARGUMENT(Bytes > 0);
+
+    platform = Os->device->platform;
+
+    if (platform && platform->ops->cache)
+    {
+        platform->ops->cache(
+            platform,
+            ProcessID,
+            Handle,
+            Physical,
+            Logical,
+            Bytes,
+            gcvCACHE_CLEAN
+            );
+
+        /* Success. */
+        gcmkFOOTER_NO();
+        return gcvSTATUS_OK;
+    }
+
+    /* @tga dmac_map_area is not exported starting from k4.3
+     * using arm_dma_ops ops. Ideally place this in platform
+     * specific function above.
+     */
+    arm_dma_ops.sync_single_for_device(gcvNULL,
+            (dma_addr_t)Physical, Bytes, DMA_TO_DEVICE);
+#if 0
+#if !gcdCACHE_FUNCTION_UNIMPLEMENTED
+#ifdef CONFIG_ARM
+
+    /* Inner cache. */
+#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,35)
+    dmac_map_area(Logical, Bytes, DMA_TO_DEVICE);
+#      else
+    dmac_clean_range(Logical, Logical + Bytes);
+#      endif
+
+#if defined(CONFIG_OUTER_CACHE)
+    /* Outer cache. */
+#if gcdENABLE_OUTER_CACHE_PATCH
+    _HandleOuterCache(Os, Physical, Logical, Bytes, gcvCACHE_CLEAN);
+#else
+    outer_clean_range((unsigned long) Handle, (unsigned long) Handle + Bytes);
+#endif
+#endif
+
+#elif defined(CONFIG_MIPS)
+
+    dma_cache_wback((unsigned long) Logical, Bytes);
+
+#elif defined(CONFIG_PPC)
+
+    /* TODO */
+
+#else
+    dma_sync_single_for_device(
+              gcvNULL,
+              (dma_addr_t)Physical,
+              Bytes,
+              DMA_TO_DEVICE);
+#endif
+#endif
+#endif
+
+    /* Success. */
+    gcmkFOOTER_NO();
+    return gcvSTATUS_OK;
+}
+
+/*******************************************************************************
+**  gckOS_CacheInvalidate
+**
+**  Invalidate the cache for the specified addresses. The GPU is going to need
+**  data.  If the system is allocating memory as non-cachable, this function can
+**  be ignored.
+**
+**  ARGUMENTS:
+**
+**      gckOS Os
+**          Pointer to gckOS object.
+**
+**      gctUINT32 ProcessID
+**          Process ID Logical belongs.
+**
+**      gctPHYS_ADDR Handle
+**          Physical address handle.  If gcvNULL it is video memory.
+**
+**      gctPOINTER Logical
+**          Logical address to flush.
+**
+**      gctSIZE_T Bytes
+**          Size of the address range in bytes to flush.
+*/
+gceSTATUS
+gckOS_CacheInvalidate(
+    IN gckOS Os,
+    IN gctUINT32 ProcessID,
+    IN gctPHYS_ADDR Handle,
+    IN gctPHYS_ADDR_T Physical,
+    IN gctPOINTER Logical,
+    IN gctSIZE_T Bytes
+    )
+{
+    gcsPLATFORM * platform;
+
+    gcmkHEADER_ARG("Os=0x%X ProcessID=%d Handle=0x%X Logical=0x%X Bytes=%lu",
+                   Os, ProcessID, Handle, Logical, Bytes);
+
+    /* Verify the arguments. */
+    gcmkVERIFY_OBJECT(Os, gcvOBJ_OS);
+    gcmkVERIFY_ARGUMENT(Logical != gcvNULL);
+    gcmkVERIFY_ARGUMENT(Bytes > 0);
+
+    platform = Os->device->platform;
+
+    if (platform && platform->ops->cache)
+    {
+        platform->ops->cache(
+            platform,
+            ProcessID,
+            Handle,
+            Physical,
+            Logical,
+            Bytes,
+            gcvCACHE_INVALIDATE
+            );
+
+        /* Success. */
+        gcmkFOOTER_NO();
+        return gcvSTATUS_OK;
+    }
+
+    /* @tga `dmac_map_area` function/macro is no longer exported starting
+     * from k4.3. Using dma mappings API ops instead, ideally these need
+     * to go inside platform specific ops above. TODO
+     */
+    arm_dma_ops.sync_single_for_cpu(gcvNULL,
+            (dma_addr_t)Physical, Bytes, DMA_FROM_DEVICE);
+#if 0
+#if !gcdCACHE_FUNCTION_UNIMPLEMENTED
+#ifdef CONFIG_ARM
+
+    /* Inner cache. */
+#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,35)
+    dmac_map_area(Logical, Bytes, DMA_FROM_DEVICE);
+#      else
+    dmac_inv_range(Logical, Logical + Bytes);
+#      endif
+
+#if defined(CONFIG_OUTER_CACHE)
+    /* Outer cache. */
+#if gcdENABLE_OUTER_CACHE_PATCH
+    _HandleOuterCache(Os, Physical, Logical, Bytes, gcvCACHE_INVALIDATE);
+#else
+    outer_inv_range((unsigned long) Handle, (unsigned long) Handle + Bytes);
+#endif
+#endif
+
+#elif defined(CONFIG_MIPS)
+    dma_cache_inv((unsigned long) Logical, Bytes);
+#elif defined(CONFIG_PPC)
+    /* TODO */
+#else
+    dma_sync_single_for_device(
+              gcvNULL,
+              (dma_addr_t)Physical,
+              Bytes,
+              DMA_FROM_DEVICE);
+#endif
+#endif
+#endif
+
+    /* Success. */
+    gcmkFOOTER_NO();
+    return gcvSTATUS_OK;
+}
+
+/*******************************************************************************
+**  gckOS_CacheFlush
+**
+**  Clean the cache for the specified addresses and invalidate the lines as
+**  well.  The GPU is going to need and modify the data.  If the system is
+**  allocating memory as non-cachable, this function can be ignored.
+**
+**  ARGUMENTS:
+**
+**      gckOS Os
+**          Pointer to gckOS object.
+**
+**      gctUINT32 ProcessID
+**          Process ID Logical belongs.
+**
+**      gctPHYS_ADDR Handle
+**          Physical address handle.  If gcvNULL it is video memory.
+**
+**      gctPOINTER Logical
+**          Logical address to flush.
+**
+**      gctSIZE_T Bytes
+**          Size of the address range in bytes to flush.
+*/
+gceSTATUS
+gckOS_CacheFlush(
+    IN gckOS Os,
+    IN gctUINT32 ProcessID,
+    IN gctPHYS_ADDR Handle,
+    IN gctPHYS_ADDR_T Physical,
+    IN gctPOINTER Logical,
+    IN gctSIZE_T Bytes
+    )
+{
+    gcsPLATFORM * platform;
+
+    gcmkHEADER_ARG("Os=0x%X ProcessID=%d Handle=0x%X Logical=0x%X Bytes=%lu",
+                   Os, ProcessID, Handle, Logical, Bytes);
+
+    /* Verify the arguments. */
+    gcmkVERIFY_OBJECT(Os, gcvOBJ_OS);
+    gcmkVERIFY_ARGUMENT(Logical != gcvNULL);
+    gcmkVERIFY_ARGUMENT(Bytes > 0);
+
+    platform = Os->device->platform;
+
+    if (platform && platform->ops->cache)
+    {
+        platform->ops->cache(
+            platform,
+            ProcessID,
+            Handle,
+            Physical,
+            Logical,
+            Bytes,
+            gcvCACHE_FLUSH
+            );
+
+        /* Success. */
+        gcmkFOOTER_NO();
+        return gcvSTATUS_OK;
+    }
+
+#if !gcdCACHE_FUNCTION_UNIMPLEMENTED
+#ifdef CONFIG_ARM
+    /* Inner cache. */
+    dmac_flush_range(Logical, Logical + Bytes);
+
+#if defined(CONFIG_OUTER_CACHE)
+    /* Outer cache. */
+#if gcdENABLE_OUTER_CACHE_PATCH
+    _HandleOuterCache(Os, Physical, Logical, Bytes, gcvCACHE_FLUSH);
+#else
+    outer_flush_range((unsigned long) Handle, (unsigned long) Handle + Bytes);
+#endif
+#endif
+
+#elif defined(CONFIG_MIPS)
+    dma_cache_wback_inv((unsigned long) Logical, Bytes);
+#elif defined(CONFIG_PPC)
+    /* TODO */
+#else
+    dma_sync_single_for_device(
+              gcvNULL,
+              (dma_addr_t)Physical,
+              Bytes,
+              DMA_BIDIRECTIONAL);
+#endif
+#endif
+
+    /* Success. */
+    gcmkFOOTER_NO();
+    return gcvSTATUS_OK;
+}
+
+/*******************************************************************************
+********************************* Broadcasting *********************************
+*******************************************************************************/
+
+/*******************************************************************************
+**
+**  gckOS_Broadcast
+**
+**  System hook for broadcast events from the kernel driver.
+**
+**  INPUT:
+**
+**      gckOS Os
+**          Pointer to the gckOS object.
+**
+**      gckHARDWARE Hardware
+**          Pointer to the gckHARDWARE object.
+**
+**      gceBROADCAST Reason
+**          Reason for the broadcast.  Can be one of the following values:
+**
+**              gcvBROADCAST_GPU_IDLE
+**                  Broadcasted when the kernel driver thinks the GPU might be
+**                  idle.  This can be used to handle power management.
+**
+**              gcvBROADCAST_GPU_COMMIT
+**                  Broadcasted when any client process commits a command
+**                  buffer.  This can be used to handle power management.
+**
+**              gcvBROADCAST_GPU_STUCK
+**                  Broadcasted when the kernel driver hits the timeout waiting
+**                  for the GPU.
+**
+**              gcvBROADCAST_FIRST_PROCESS
+**                  First process is trying to connect to the kernel.
+**
+**              gcvBROADCAST_LAST_PROCESS
+**                  Last process has detached from the kernel.
+**
+**  OUTPUT:
+**
+**      Nothing.
+*/
+gceSTATUS
+gckOS_Broadcast(
+    IN gckOS Os,
+    IN gckHARDWARE Hardware,
+    IN gceBROADCAST Reason
+    )
+{
+    gceSTATUS status;
+
+    gcmkHEADER_ARG("Os=0x%X Hardware=0x%X Reason=%d", Os, Hardware, Reason);
+
+    /* Verify the arguments. */
+    gcmkVERIFY_OBJECT(Os, gcvOBJ_OS);
+    gcmkVERIFY_OBJECT(Hardware, gcvOBJ_HARDWARE);
+
+    switch (Reason)
+    {
+    case gcvBROADCAST_FIRST_PROCESS:
+        gcmkTRACE_ZONE(gcvLEVEL_INFO, gcvZONE_OS, "First process has attached");
+        break;
+
+    case gcvBROADCAST_LAST_PROCESS:
+        gcmkTRACE_ZONE(gcvLEVEL_INFO, gcvZONE_OS, "Last process has detached");
+
+        /* Put GPU OFF. */
+        gcmkONERROR(
+            gckHARDWARE_SetPowerManagementState(Hardware,
+                                                gcvPOWER_OFF_BROADCAST));
+        break;
+
+    case gcvBROADCAST_GPU_IDLE:
+        gcmkTRACE_ZONE(gcvLEVEL_INFO, gcvZONE_OS, "GPU idle.");
+
+        /* Put GPU IDLE. */
+        gcmkONERROR(
+            gckHARDWARE_SetPowerManagementState(Hardware,
+#if gcdPOWER_SUSPEND_WHEN_IDLE
+                                                gcvPOWER_SUSPEND_BROADCAST));
+#else
+                                                gcvPOWER_IDLE_BROADCAST));
+#endif
+
+        /* Add idle process DB. */
+        gcmkONERROR(gckKERNEL_AddProcessDB(Hardware->kernel,
+                                           1,
+                                           gcvDB_IDLE,
+                                           gcvNULL, gcvNULL, 0));
+        break;
+
+    case gcvBROADCAST_GPU_COMMIT:
+        gcmkTRACE_ZONE(gcvLEVEL_INFO, gcvZONE_OS, "COMMIT has arrived.");
+
+        /* Add busy process DB. */
+        gcmkONERROR(gckKERNEL_AddProcessDB(Hardware->kernel,
+                                           0,
+                                           gcvDB_IDLE,
+                                           gcvNULL, gcvNULL, 0));
+
+        /* Put GPU ON. */
+        gcmkONERROR(
+            gckHARDWARE_SetPowerManagementState(Hardware, gcvPOWER_ON_AUTO));
+        break;
+
+    case gcvBROADCAST_GPU_STUCK:
+        gcmkTRACE_N(gcvLEVEL_ERROR, 0, "gcvBROADCAST_GPU_STUCK\n");
+        gcmkONERROR(gckKERNEL_Recovery(Hardware->kernel));
+        break;
+
+    case gcvBROADCAST_AXI_BUS_ERROR:
+        gcmkTRACE_N(gcvLEVEL_ERROR, 0, "gcvBROADCAST_AXI_BUS_ERROR\n");
+        gcmkONERROR(gckHARDWARE_DumpGPUState(Hardware));
+        gcmkONERROR(gckKERNEL_Recovery(Hardware->kernel));
+        break;
+
+    case gcvBROADCAST_OUT_OF_MEMORY:
+        gcmkTRACE_N(gcvLEVEL_INFO, 0, "gcvBROADCAST_OUT_OF_MEMORY\n");
+
+        status = _ShrinkMemory(Os);
+
+        if (status == gcvSTATUS_NOT_SUPPORTED)
+        {
+            goto OnError;
+        }
+
+        gcmkONERROR(status);
+
+        break;
+
+    default:
+        /* Skip unimplemented broadcast. */
+        break;
+    }
+
+    /* Success. */
+    gcmkFOOTER_NO();
+    return gcvSTATUS_OK;
+
+OnError:
+    /* Return the status. */
+    gcmkFOOTER();
+    return status;
+}
+
+/*******************************************************************************
+**
+**  gckOS_BroadcastHurry
+**
+**  The GPU is running too slow.
+**
+**  INPUT:
+**
+**      gckOS Os
+**          Pointer to the gckOS object.
+**
+**      gckHARDWARE Hardware
+**          Pointer to the gckHARDWARE object.
+**
+**      gctUINT Urgency
+**          The higher the number, the higher the urgency to speed up the GPU.
+**          The maximum value is defined by the gcdDYNAMIC_EVENT_THRESHOLD.
+**
+**  OUTPUT:
+**
+**      Nothing.
+*/
+gceSTATUS
+gckOS_BroadcastHurry(
+    IN gckOS Os,
+    IN gckHARDWARE Hardware,
+    IN gctUINT Urgency
+    )
+{
+    gcmkHEADER_ARG("Os=0x%x Hardware=0x%x Urgency=%u", Os, Hardware, Urgency);
+
+    /* Do whatever you need to do to speed up the GPU now. */
+
+    /* Success. */
+    gcmkFOOTER_NO();
+    return gcvSTATUS_OK;
+}
+
+/*******************************************************************************
+**
+**  gckOS_BroadcastCalibrateSpeed
+**
+**  Calibrate the speed of the GPU.
+**
+**  INPUT:
+**
+**      gckOS Os
+**          Pointer to the gckOS object.
+**
+**      gckHARDWARE Hardware
+**          Pointer to the gckHARDWARE object.
+**
+**      gctUINT Idle, Time
+**          Idle/Time will give the percentage the GPU is idle, so you can use
+**          this to calibrate the working point of the GPU.
+**
+**  OUTPUT:
+**
+**      Nothing.
+*/
+gceSTATUS
+gckOS_BroadcastCalibrateSpeed(
+    IN gckOS Os,
+    IN gckHARDWARE Hardware,
+    IN gctUINT Idle,
+    IN gctUINT Time
+    )
+{
+    gcmkHEADER_ARG("Os=0x%x Hardware=0x%x Idle=%u Time=%u",
+                   Os, Hardware, Idle, Time);
+
+    /* Do whatever you need to do to callibrate the GPU speed. */
+
+    /* Success. */
+    gcmkFOOTER_NO();
+    return gcvSTATUS_OK;
+}
+
+/*******************************************************************************
+********************************** Semaphores **********************************
+*******************************************************************************/
+
+/*******************************************************************************
+**
+**  gckOS_CreateSemaphore
+**
+**  Create a semaphore.
+**
+**  INPUT:
+**
+**      gckOS Os
+**          Pointer to the gckOS object.
+**
+**  OUTPUT:
+**
+**      gctPOINTER * Semaphore
+**          Pointer to the variable that will receive the created semaphore.
+*/
+gceSTATUS
+gckOS_CreateSemaphore(
+    IN gckOS Os,
+    OUT gctPOINTER * Semaphore
+    )
+{
+    gceSTATUS status;
+    struct semaphore *sem = gcvNULL;
+
+    gcmkHEADER_ARG("Os=0x%X", Os);
+
+    /* Verify the arguments. */
+    gcmkVERIFY_OBJECT(Os, gcvOBJ_OS);
+    gcmkVERIFY_ARGUMENT(Semaphore != gcvNULL);
+
+    /* Allocate the semaphore structure. */
+    sem = (struct semaphore *)kmalloc(gcmSIZEOF(struct semaphore), GFP_KERNEL | gcdNOWARN);
+    if (sem == gcvNULL)
+    {
+        gcmkONERROR(gcvSTATUS_OUT_OF_MEMORY);
+    }
+
+    /* Initialize the semaphore. */
+    sema_init(sem, 1);
+
+    /* Return to caller. */
+    *Semaphore = (gctPOINTER) sem;
+
+    /* Success. */
+    gcmkFOOTER_NO();
+    return gcvSTATUS_OK;
+
+OnError:
+    /* Return the status. */
+    gcmkFOOTER();
+    return status;
+}
+
+/*******************************************************************************
+**
+**  gckOS_AcquireSemaphore
+**
+**  Acquire a semaphore.
+**
+**  INPUT:
+**
+**      gckOS Os
+**          Pointer to the gckOS object.
+**
+**      gctPOINTER Semaphore
+**          Pointer to the semaphore thet needs to be acquired.
+**
+**  OUTPUT:
+**
+**      Nothing.
+*/
+gceSTATUS
+gckOS_AcquireSemaphore(
+    IN gckOS Os,
+    IN gctPOINTER Semaphore
+    )
+{
+    gceSTATUS status;
+
+    gcmkHEADER_ARG("Os=0x%08X Semaphore=0x%08X", Os, Semaphore);
+
+    /* Verify the arguments. */
+    gcmkVERIFY_OBJECT(Os, gcvOBJ_OS);
+    gcmkVERIFY_ARGUMENT(Semaphore != gcvNULL);
+
+    /* Acquire the semaphore. */
+    if (down_interruptible((struct semaphore *) Semaphore))
+    {
+        gcmkONERROR(gcvSTATUS_INTERRUPTED);
+    }
+
+    /* Success. */
+    gcmkFOOTER_NO();
+    return gcvSTATUS_OK;
+
+OnError:
+    /* Return the status. */
+    gcmkFOOTER();
+    return status;
+}
+
+/*******************************************************************************
+**
+**  gckOS_TryAcquireSemaphore
+**
+**  Try to acquire a semaphore.
+**
+**  INPUT:
+**
+**      gckOS Os
+**          Pointer to the gckOS object.
+**
+**      gctPOINTER Semaphore
+**          Pointer to the semaphore thet needs to be acquired.
+**
+**  OUTPUT:
+**
+**      Nothing.
+*/
+gceSTATUS
+gckOS_TryAcquireSemaphore(
+    IN gckOS Os,
+    IN gctPOINTER Semaphore
+    )
+{
+    gceSTATUS status;
+
+    gcmkHEADER_ARG("Os=0x%x", Os);
+
+    /* Verify the arguments. */
+    gcmkVERIFY_OBJECT(Os, gcvOBJ_OS);
+    gcmkVERIFY_ARGUMENT(Semaphore != gcvNULL);
+
+    /* Acquire the semaphore. */
+    if (down_trylock((struct semaphore *) Semaphore))
+    {
+        /* Timeout. */
+        status = gcvSTATUS_TIMEOUT;
+        gcmkFOOTER();
+        return status;
+    }
+
+    /* Success. */
+    gcmkFOOTER_NO();
+    return gcvSTATUS_OK;
+}
+
+/*******************************************************************************
+**
+**  gckOS_ReleaseSemaphore
+**
+**  Release a previously acquired semaphore.
+**
+**  INPUT:
+**
+**      gckOS Os
+**          Pointer to the gckOS object.
+**
+**      gctPOINTER Semaphore
+**          Pointer to the semaphore thet needs to be released.
+**
+**  OUTPUT:
+**
+**      Nothing.
+*/
+gceSTATUS
+gckOS_ReleaseSemaphore(
+    IN gckOS Os,
+    IN gctPOINTER Semaphore
+    )
+{
+    gcmkHEADER_ARG("Os=0x%X Semaphore=0x%X", Os, Semaphore);
+
+    /* Verify the arguments. */
+    gcmkVERIFY_OBJECT(Os, gcvOBJ_OS);
+    gcmkVERIFY_ARGUMENT(Semaphore != gcvNULL);
+
+    /* Release the semaphore. */
+    up((struct semaphore *) Semaphore);
+
+    /* Success. */
+    gcmkFOOTER_NO();
+    return gcvSTATUS_OK;
+}
+
+/*******************************************************************************
+**
+**  gckOS_DestroySemaphore
+**
+**  Destroy a semaphore.
+**
+**  INPUT:
+**
+**      gckOS Os
+**          Pointer to the gckOS object.
+**
+**      gctPOINTER Semaphore
+**          Pointer to the semaphore thet needs to be destroyed.
+**
+**  OUTPUT:
+**
+**      Nothing.
+*/
+gceSTATUS
+gckOS_DestroySemaphore(
+    IN gckOS Os,
+    IN gctPOINTER Semaphore
+    )
+{
+    gcmkHEADER_ARG("Os=0x%X Semaphore=0x%X", Os, Semaphore);
+
+     /* Verify the arguments. */
+    gcmkVERIFY_OBJECT(Os, gcvOBJ_OS);
+    gcmkVERIFY_ARGUMENT(Semaphore != gcvNULL);
+
+    /* Free the sempahore structure. */
+    kfree(Semaphore);
+
+    /* Success. */
+    gcmkFOOTER_NO();
+    return gcvSTATUS_OK;
+}
+
+/*******************************************************************************
+**
+**  gckOS_GetProcessID
+**
+**  Get current process ID.
+**
+**  INPUT:
+**
+**      Nothing.
+**
+**  OUTPUT:
+**
+**      gctUINT32_PTR ProcessID
+**          Pointer to the variable that receives the process ID.
+*/
+gceSTATUS
+gckOS_GetProcessID(
+    OUT gctUINT32_PTR ProcessID
+    )
+{
+    /* Get process ID. */
+    if (ProcessID != gcvNULL)
+    {
+        *ProcessID = _GetProcessID();
+    }
+
+    /* Success. */
+    return gcvSTATUS_OK;
+}
+
+/*******************************************************************************
+**
+**  gckOS_GetThreadID
+**
+**  Get current thread ID.
+**
+**  INPUT:
+**
+**      Nothing.
+**
+**  OUTPUT:
+**
+**      gctUINT32_PTR ThreadID
+**          Pointer to the variable that receives the thread ID.
+*/
+gceSTATUS
+gckOS_GetThreadID(
+    OUT gctUINT32_PTR ThreadID
+    )
+{
+    /* Get thread ID. */
+    if (ThreadID != gcvNULL)
+    {
+        *ThreadID = _GetThreadID();
+    }
+
+    /* Success. */
+    return gcvSTATUS_OK;
+}
+
+/*******************************************************************************
+**
+**  gckOS_SetGPUPower
+**
+**  Set the power of the GPU on or off.
+**
+**  INPUT:
+**
+**      gckOS Os
+**          Pointer to a gckOS object.
+**
+**      gceCORE Core
+**          GPU whose power is set.
+**
+**      gctBOOL Clock
+**          gcvTRUE to turn on the clock, or gcvFALSE to turn off the clock.
+**
+**      gctBOOL Power
+**          gcvTRUE to turn on the power, or gcvFALSE to turn off the power.
+**
+**  OUTPUT:
+**
+**      Nothing.
+*/
+gceSTATUS
+gckOS_SetGPUPower(
+    IN gckOS Os,
+    IN gceCORE Core,
+    IN gctBOOL Clock,
+    IN gctBOOL Power
+    )
+{
+    gcsPLATFORM * platform;
+
+    gctBOOL powerChange = gcvFALSE;
+    gctBOOL clockChange = gcvFALSE;
+
+    gcmkHEADER_ARG("Os=0x%X Core=%d Clock=%d Power=%d", Os, Core, Clock, Power);
+    gcmkVERIFY_OBJECT(Os, gcvOBJ_OS);
+
+    platform = Os->device->platform;
+
+    powerChange = (Power != Os->powerStates[Core]);
+
+    clockChange = (Clock != Os->clockStates[Core]);
+
+    if (powerChange && (Power == gcvTRUE))
+    {
+        if (platform && platform->ops->setPower)
+        {
+            gcmkVERIFY_OK(platform->ops->setPower(platform, Core, Power));
+        }
+
+        Os->powerStates[Core] = Power;
+    }
+
+    if (clockChange)
+    {
+        mutex_lock(&Os->registerAccessLocks[Core]);
+
+        if (platform && platform->ops->setClock)
+        {
+            gcmkVERIFY_OK(platform->ops->setClock(platform, Core, Clock));
+        }
+
+        Os->clockStates[Core] = Clock;
+
+        mutex_unlock(&Os->registerAccessLocks[Core]);
+    }
+
+    if (powerChange && (Power == gcvFALSE))
+    {
+        if (platform && platform->ops->setPower)
+        {
+            gcmkVERIFY_OK(platform->ops->setPower(platform, Core, Power));
+        }
+
+        Os->powerStates[Core] = Power;
+    }
+
+    gcmkFOOTER_NO();
+    return gcvSTATUS_OK;
+}
+
+/*******************************************************************************
+**
+**  gckOS_ResetGPU
+**
+**  Reset the GPU.
+**
+**  INPUT:
+**
+**      gckOS Os
+**          Pointer to a gckOS object.
+**
+**      gckCORE Core
+**          GPU whose power is set.
+**
+**  OUTPUT:
+**
+**      Nothing.
+*/
+gceSTATUS
+gckOS_ResetGPU(
+    IN gckOS Os,
+    IN gceCORE Core
+    )
+{
+    gceSTATUS status = gcvSTATUS_NOT_SUPPORTED;
+    gcsPLATFORM * platform;
+
+    gcmkHEADER_ARG("Os=0x%X Core=%d", Os, Core);
+    gcmkVERIFY_OBJECT(Os, gcvOBJ_OS);
+
+    platform = Os->device->platform;
+
+    if (platform && platform->ops->reset)
+    {
+        status = platform->ops->reset(platform, Core);
+    }
+
+    gcmkFOOTER_NO();
+    return status;
+}
+
+/*******************************************************************************
+**
+**  gckOS_PrepareGPUFrequency
+**
+**  Prepare to set GPU frequency and voltage.
+**
+**  INPUT:
+**
+**      gckOS Os
+**          Pointer to a gckOS object.
+**
+**      gckCORE Core
+**          GPU whose frequency and voltage will be set.
+**
+**  OUTPUT:
+**
+**      Nothing.
+*/
+gceSTATUS
+gckOS_PrepareGPUFrequency(
+    IN gckOS Os,
+    IN gceCORE Core
+    )
+{
+    return gcvSTATUS_OK;
+}
+
+/*******************************************************************************
+**
+**  gckOS_FinishGPUFrequency
+**
+**  Finish GPU frequency setting.
+**
+**  INPUT:
+**
+**      gckOS Os
+**          Pointer to a gckOS object.
+**
+**      gckCORE Core
+**          GPU whose frequency and voltage is set.
+**
+**  OUTPUT:
+**
+**      Nothing.
+*/
+gceSTATUS
+gckOS_FinishGPUFrequency(
+    IN gckOS Os,
+    IN gceCORE Core
+    )
+{
+    return gcvSTATUS_OK;
+}
+
+/*******************************************************************************
+**
+**  gckOS_QueryGPUFrequency
+**
+**  Query the current frequency of the GPU.
+**
+**  INPUT:
+**
+**      gckOS Os
+**          Pointer to a gckOS object.
+**
+**      gckCORE Core
+**          GPU whose power is set.
+**
+**      gctUINT32 * Frequency
+**          Pointer to a gctUINT32 to obtain current frequency, in MHz.
+**
+**      gctUINT8 * Scale
+**          Pointer to a gctUINT8 to obtain current scale(1 - 64).
+**
+**  OUTPUT:
+**
+**      Nothing.
+*/
+gceSTATUS
+gckOS_QueryGPUFrequency(
+    IN gckOS Os,
+    IN gceCORE Core,
+    OUT gctUINT32 * Frequency,
+    OUT gctUINT8 * Scale
+    )
+{
+    return gcvSTATUS_OK;
+}
+
+/*******************************************************************************
+**
+**  gckOS_SetGPUFrequency
+**
+**  Set frequency and voltage of the GPU.
+**
+**      1. DVFS manager gives the target scale of full frequency, BSP must find
+**         a real frequency according to this scale and board's configure.
+**
+**      2. BSP should find a suitable voltage for this frequency.
+**
+**      3. BSP must make sure setting take effect before this function returns.
+**
+**  INPUT:
+**
+**      gckOS Os
+**          Pointer to a gckOS object.
+**
+**      gckCORE Core
+**          GPU whose power is set.
+**
+**      gctUINT8 Scale
+**          Target scale of full frequency, range is [1, 64]. 1 means 1/64 of
+**          full frequency and 64 means 64/64 of full frequency.
+**
+**  OUTPUT:
+**
+**      Nothing.
+*/
+gceSTATUS
+gckOS_SetGPUFrequency(
+    IN gckOS Os,
+    IN gceCORE Core,
+    IN gctUINT8 Scale
+    )
+{
+    return gcvSTATUS_OK;
+}
+
+/*----------------------------------------------------------------------------*/
+/*----- Profile --------------------------------------------------------------*/
+
+gceSTATUS
+gckOS_GetProfileTick(
+    OUT gctUINT64_PTR Tick
+    )
+{
+    struct timespec time;
+
+    ktime_get_ts(&time);
+
+    *Tick = time.tv_nsec + time.tv_sec * 1000000000ULL;
+
+    return gcvSTATUS_OK;
+}
+
+gceSTATUS
+gckOS_QueryProfileTickRate(
+    OUT gctUINT64_PTR TickRate
+    )
+{
+    struct timespec res;
+
+    res.tv_sec = 0;
+    res.tv_nsec = hrtimer_resolution;
+
+    *TickRate = res.tv_nsec + res.tv_sec * 1000000000ULL;
+
+    return gcvSTATUS_OK;
+}
+
+gctUINT32
+gckOS_ProfileToMS(
+    IN gctUINT64 Ticks
+    )
+{
+#if LINUX_VERSION_CODE > KERNEL_VERSION(2,6,23)
+    return div_u64(Ticks, 1000000);
+#else
+    gctUINT64 rem = Ticks;
+    gctUINT64 b = 1000000;
+    gctUINT64 res, d = 1;
+    gctUINT32 high = rem >> 32;
+
+    /* Reduce the thing a bit first */
+    res = 0;
+    if (high >= 1000000)
+    {
+        high /= 1000000;
+        res   = (gctUINT64) high << 32;
+        rem  -= (gctUINT64) (high * 1000000) << 32;
+    }
+
+    while (((gctINT64) b > 0) && (b < rem))
+    {
+        b <<= 1;
+        d <<= 1;
+    }
+
+    do
+    {
+        if (rem >= b)
+        {
+            rem -= b;
+            res += d;
+        }
+
+        b >>= 1;
+        d >>= 1;
+    }
+    while (d);
+
+    return (gctUINT32) res;
+#endif
+}
+
+/******************************************************************************\
+******************************* Signal Management ******************************
+\******************************************************************************/
+
+#undef _GC_OBJ_ZONE
+#define _GC_OBJ_ZONE    gcvZONE_SIGNAL
+
+/*******************************************************************************
+**
+**  gckOS_CreateSignal
+**
+**  Create a new signal.
+**
+**  INPUT:
+**
+**      gckOS Os
+**          Pointer to an gckOS object.
+**
+**      gctBOOL ManualReset
+**          If set to gcvTRUE, gckOS_Signal with gcvFALSE must be called in
+**          order to set the signal to nonsignaled state.
+**          If set to gcvFALSE, the signal will automatically be set to
+**          nonsignaled state by gckOS_WaitSignal function.
+**
+**  OUTPUT:
+**
+**      gctSIGNAL * Signal
+**          Pointer to a variable receiving the created gctSIGNAL.
+*/
+gceSTATUS
+gckOS_CreateSignal(
+    IN gckOS Os,
+    IN gctBOOL ManualReset,
+    OUT gctSIGNAL * Signal
+    )
+{
+    gceSTATUS status;
+    gcsSIGNAL_PTR signal;
+
+    gcmkHEADER_ARG("Os=0x%X ManualReset=%d", Os, ManualReset);
+
+    /* Verify the arguments. */
+    gcmkVERIFY_OBJECT(Os, gcvOBJ_OS);
+    gcmkVERIFY_ARGUMENT(Signal != gcvNULL);
+
+    /* Create an event structure. */
+    signal = (gcsSIGNAL_PTR) kmalloc(sizeof(gcsSIGNAL), GFP_KERNEL | gcdNOWARN);
+
+    if (signal == gcvNULL)
+    {
+        gcmkONERROR(gcvSTATUS_OUT_OF_MEMORY);
+    }
+
+    /* Save the process ID. */
+    signal->process = (gctHANDLE)(gctUINTPTR_T) _GetProcessID();
+    signal->manualReset = ManualReset;
+    signal->hardware = gcvNULL;
+    init_completion(&signal->obj);
+    atomic_set(&signal->ref, 1);
+
+    gcmkONERROR(_AllocateIntegerId(&Os->signalDB, signal, &signal->id));
+
+    *Signal = (gctSIGNAL)(gctUINTPTR_T)signal->id;
+
+    gcmkFOOTER_ARG("*Signal=0x%X", *Signal);
+    return gcvSTATUS_OK;
+
+OnError:
+    if (signal != gcvNULL)
+    {
+        kfree(signal);
+    }
+
+    gcmkFOOTER_NO();
+    return status;
+}
+
+gceSTATUS
+gckOS_SignalQueryHardware(
+    IN gckOS Os,
+    IN gctSIGNAL Signal,
+    OUT gckHARDWARE * Hardware
+    )
+{
+    gceSTATUS status;
+    gcsSIGNAL_PTR signal;
+
+    gcmkHEADER_ARG("Os=0x%X Signal=0x%X Hardware=0x%X", Os, Signal, Hardware);
+
+    /* Verify the arguments. */
+    gcmkVERIFY_OBJECT(Os, gcvOBJ_OS);
+    gcmkVERIFY_ARGUMENT(Signal != gcvNULL);
+    gcmkVERIFY_ARGUMENT(Hardware != gcvNULL);
+
+    gcmkONERROR(_QueryIntegerId(&Os->signalDB, (gctUINT32)(gctUINTPTR_T)Signal, (gctPOINTER)&signal));
+
+    *Hardware = signal->hardware;
+
+    gcmkFOOTER_NO();
+    return gcvSTATUS_OK;
+OnError:
+    gcmkFOOTER();
+    return status;
+}
+
+gceSTATUS
+gckOS_SignalSetHardware(
+    IN gckOS Os,
+    IN gctSIGNAL Signal,
+    IN gckHARDWARE Hardware
+    )
+{
+    gceSTATUS status;
+    gcsSIGNAL_PTR signal;
+
+    gcmkHEADER_ARG("Os=0x%X Signal=0x%X Hardware=0x%X", Os, Signal, Hardware);
+
+    /* Verify the arguments. */
+    gcmkVERIFY_OBJECT(Os, gcvOBJ_OS);
+    gcmkVERIFY_ARGUMENT(Signal != gcvNULL);
+
+    gcmkONERROR(_QueryIntegerId(&Os->signalDB, (gctUINT32)(gctUINTPTR_T)Signal, (gctPOINTER)&signal));
+
+    signal->hardware = Hardware;
+
+    gcmkFOOTER_NO();
+    return gcvSTATUS_OK;
+OnError:
+    gcmkFOOTER();
+    return status;
+}
+
+/*******************************************************************************
+**
+**  gckOS_DestroySignal
+**
+**  Destroy a signal.
+**
+**  INPUT:
+**
+**      gckOS Os
+**          Pointer to an gckOS object.
+**
+**      gctSIGNAL Signal
+**          Pointer to the gctSIGNAL.
+**
+**  OUTPUT:
+**
+**      Nothing.
+*/
+gceSTATUS
+gckOS_DestroySignal(
+    IN gckOS Os,
+    IN gctSIGNAL Signal
+    )
+{
+    gceSTATUS status;
+    gcsSIGNAL_PTR signal;
+    gctBOOL acquired = gcvFALSE;
+
+    gcmkHEADER_ARG("Os=0x%X Signal=0x%X", Os, Signal);
+
+    /* Verify the arguments. */
+    gcmkVERIFY_OBJECT(Os, gcvOBJ_OS);
+    gcmkVERIFY_ARGUMENT(Signal != gcvNULL);
+
+    gcmkONERROR(gckOS_AcquireMutex(Os, Os->signalMutex, gcvINFINITE));
+    acquired = gcvTRUE;
+
+    gcmkONERROR(_QueryIntegerId(&Os->signalDB, (gctUINT32)(gctUINTPTR_T)Signal, (gctPOINTER)&signal));
+
+    gcmkASSERT(signal->id == (gctUINT32)(gctUINTPTR_T)Signal);
+
+    if (atomic_dec_and_test(&signal->ref))
+    {
+        gcmkVERIFY_OK(_DestroyIntegerId(&Os->signalDB, signal->id));
+
+        /* Free the sgianl. */
+        kfree(signal);
+    }
+
+    gcmkVERIFY_OK(gckOS_ReleaseMutex(Os, Os->signalMutex));
+    acquired = gcvFALSE;
+
+    /* Success. */
+    gcmkFOOTER_NO();
+    return gcvSTATUS_OK;
+
+OnError:
+    if (acquired)
+    {
+        /* Release the mutex. */
+        gcmkVERIFY_OK(gckOS_ReleaseMutex(Os, Os->signalMutex));
+    }
+
+    gcmkFOOTER();
+    return status;
+}
+
+/*******************************************************************************
+**
+**  gckOS_Signal
+**
+**  Set a state of the specified signal.
+**
+**  INPUT:
+**
+**      gckOS Os
+**          Pointer to an gckOS object.
+**
+**      gctSIGNAL Signal
+**          Pointer to the gctSIGNAL.
+**
+**      gctBOOL State
+**          If gcvTRUE, the signal will be set to signaled state.
+**          If gcvFALSE, the signal will be set to nonsignaled state.
+**
+**  OUTPUT:
+**
+**      Nothing.
+*/
+gceSTATUS
+gckOS_Signal(
+    IN gckOS Os,
+    IN gctSIGNAL Signal,
+    IN gctBOOL State
+    )
+{
+    gceSTATUS status;
+    gcsSIGNAL_PTR signal;
+    gctBOOL acquired = gcvFALSE;
+
+    gcmkHEADER_ARG("Os=0x%X Signal=0x%X State=%d", Os, Signal, State);
+
+    /* Verify the arguments. */
+    gcmkVERIFY_OBJECT(Os, gcvOBJ_OS);
+    gcmkVERIFY_ARGUMENT(Signal != gcvNULL);
+
+    gcmkONERROR(gckOS_AcquireMutex(Os, Os->signalMutex, gcvINFINITE));
+    acquired = gcvTRUE;
+
+    gcmkONERROR(_QueryIntegerId(&Os->signalDB, (gctUINT32)(gctUINTPTR_T)Signal, (gctPOINTER)&signal));
+
+    gcmkASSERT(signal->id == (gctUINT32)(gctUINTPTR_T)Signal);
+
+    if (State)
+    {
+        /* unbind the signal from hardware. */
+        signal->hardware = gcvNULL;
+
+        /* Set the event to a signaled state. */
+        complete(&signal->obj);
+    }
+    else
+    {
+        /* Set the event to an unsignaled state. */
+#if LINUX_VERSION_CODE >= KERNEL_VERSION(3,13,0)
+        reinit_completion(&signal->obj);
+#else
+        INIT_COMPLETION(signal->obj);
+#endif
+    }
+
+    gcmkVERIFY_OK(gckOS_ReleaseMutex(Os, Os->signalMutex));
+    acquired = gcvFALSE;
+
+    /* Success. */
+    gcmkFOOTER_NO();
+    return gcvSTATUS_OK;
+
+OnError:
+    if (acquired)
+    {
+        /* Release the mutex. */
+        gcmkVERIFY_OK(gckOS_ReleaseMutex(Os, Os->signalMutex));
+    }
+
+    gcmkFOOTER();
+    return status;
+}
+
+
+/*******************************************************************************
+**
+**  gckOS_UserSignal
+**
+**  Set the specified signal which is owned by a process to signaled state.
+**
+**  INPUT:
+**
+**      gckOS Os
+**          Pointer to an gckOS object.
+**
+**      gctSIGNAL Signal
+**          Pointer to the gctSIGNAL.
+**
+**      gctHANDLE Process
+**          Handle of process owning the signal.
+**
+**  OUTPUT:
+**
+**      Nothing.
+*/
+gceSTATUS
+gckOS_UserSignal(
+    IN gckOS Os,
+    IN gctSIGNAL Signal,
+    IN gctHANDLE Process
+    )
+{
+    gceSTATUS status;
+    gctSIGNAL signal;
+
+    gcmkHEADER_ARG("Os=0x%X Signal=0x%X Process=%d",
+                   Os, Signal, (gctINT32)(gctUINTPTR_T)Process);
+
+    /* Map the signal into kernel space. */
+    gcmkONERROR(gckOS_MapSignal(Os, Signal, Process, &signal));
+
+    /* Signal. */
+    status = gckOS_Signal(Os, signal, gcvTRUE);
+
+    /* Unmap the signal */
+    gcmkVERIFY_OK(gckOS_UnmapSignal(Os, Signal));
+
+    gcmkFOOTER();
+    return status;
+
+OnError:
+    /* Return the status. */
+    gcmkFOOTER();
+    return status;
+}
+
+/*******************************************************************************
+**
+**  gckOS_WaitSignal
+**
+**  Wait for a signal to become signaled.
+**
+**  INPUT:
+**
+**      gckOS Os
+**          Pointer to an gckOS object.
+**
+**      gctSIGNAL Signal
+**          Pointer to the gctSIGNAL.
+**
+**      gctUINT32 Wait
+**          Number of milliseconds to wait.
+**          Pass the value of gcvINFINITE for an infinite wait.
+**
+**  OUTPUT:
+**
+**      Nothing.
+*/
+gceSTATUS
+gckOS_WaitSignal(
+    IN gckOS Os,
+    IN gctSIGNAL Signal,
+    IN gctUINT32 Wait
+    )
+{
+    gceSTATUS status = gcvSTATUS_OK;
+    gcsSIGNAL_PTR signal;
+
+    gcmkHEADER_ARG("Os=0x%X Signal=0x%X Wait=0x%08X", Os, Signal, Wait);
+
+    /* Verify the arguments. */
+    gcmkVERIFY_OBJECT(Os, gcvOBJ_OS);
+    gcmkVERIFY_ARGUMENT(Signal != gcvNULL);
+
+    gcmkONERROR(_QueryIntegerId(&Os->signalDB, (gctUINT32)(gctUINTPTR_T)Signal, (gctPOINTER)&signal));
+
+    gcmkASSERT(signal->id == (gctUINT32)(gctUINTPTR_T)Signal);
+
+    might_sleep();
+
+    spin_lock_irq(&signal->obj.wait.lock);
+
+    if (signal->obj.done)
+    {
+        if (!signal->manualReset)
+        {
+            signal->obj.done = 0;
+        }
+
+        status = gcvSTATUS_OK;
+    }
+    else if (Wait == 0)
+    {
+        status = gcvSTATUS_TIMEOUT;
+    }
+    else
+    {
+        /* Convert wait to milliseconds. */
+        long timeout = (Wait == gcvINFINITE)
+            ? MAX_SCHEDULE_TIMEOUT
+            : Wait * HZ / 1000;
+
+        DECLARE_WAITQUEUE(wait, current);
+        wait.flags |= WQ_FLAG_EXCLUSIVE;
+        __add_wait_queue_tail(&signal->obj.wait, &wait);
+
+        while (gcvTRUE)
+        {
+            if (signal_pending(current))
+            {
+                /* Interrupt received. */
+                status = gcvSTATUS_INTERRUPTED;
+                break;
+            }
+
+            __set_current_state(TASK_INTERRUPTIBLE);
+            spin_unlock_irq(&signal->obj.wait.lock);
+            timeout = schedule_timeout(timeout);
+            spin_lock_irq(&signal->obj.wait.lock);
+
+            if (signal->obj.done)
+            {
+                if (!signal->manualReset)
+                {
+                    signal->obj.done = 0;
+                }
+
+                status = gcvSTATUS_OK;
+                break;
+            }
+
+            if (timeout == 0)
+            {
+
+                status = gcvSTATUS_TIMEOUT;
+                break;
+            }
+        }
+
+        __remove_wait_queue(&signal->obj.wait, &wait);
+    }
+
+    spin_unlock_irq(&signal->obj.wait.lock);
+
+OnError:
+    /* Return status. */
+    gcmkFOOTER_ARG("Signal=0x%X status=%d", Signal, status);
+    return status;
+}
+
+/*******************************************************************************
+**
+**  gckOS_MapSignal
+**
+**  Map a signal in to the current process space.
+**
+**  INPUT:
+**
+**      gckOS Os
+**          Pointer to an gckOS object.
+**
+**      gctSIGNAL Signal
+**          Pointer to tha gctSIGNAL to map.
+**
+**      gctHANDLE Process
+**          Handle of process owning the signal.
+**
+**  OUTPUT:
+**
+**      gctSIGNAL * MappedSignal
+**          Pointer to a variable receiving the mapped gctSIGNAL.
+*/
+gceSTATUS
+gckOS_MapSignal(
+    IN gckOS Os,
+    IN gctSIGNAL Signal,
+    IN gctHANDLE Process,
+    OUT gctSIGNAL * MappedSignal
+    )
+{
+    gceSTATUS status;
+    gcsSIGNAL_PTR signal;
+    gcmkHEADER_ARG("Os=0x%X Signal=0x%X Process=0x%X", Os, Signal, Process);
+
+    gcmkVERIFY_ARGUMENT(Signal != gcvNULL);
+    gcmkVERIFY_ARGUMENT(MappedSignal != gcvNULL);
+
+    gcmkONERROR(_QueryIntegerId(&Os->signalDB, (gctUINT32)(gctUINTPTR_T)Signal, (gctPOINTER)&signal));
+
+    if(atomic_inc_return(&signal->ref) <= 1)
+    {
+        /* The previous value is 0, it has been deleted. */
+        gcmkONERROR(gcvSTATUS_INVALID_ARGUMENT);
+    }
+
+    *MappedSignal = (gctSIGNAL) Signal;
+
+    /* Success. */
+    gcmkFOOTER_ARG("*MappedSignal=0x%X", *MappedSignal);
+    return gcvSTATUS_OK;
+
+OnError:
+    gcmkFOOTER_NO();
+    return status;
+}
+
+/*******************************************************************************
+**
+**  gckOS_UnmapSignal
+**
+**  Unmap a signal .
+**
+**  INPUT:
+**
+**      gckOS Os
+**          Pointer to an gckOS object.
+**
+**      gctSIGNAL Signal
+**          Pointer to that gctSIGNAL mapped.
+*/
+gceSTATUS
+gckOS_UnmapSignal(
+    IN gckOS Os,
+    IN gctSIGNAL Signal
+    )
+{
+    return gckOS_DestroySignal(Os, Signal);
+}
+
+/*******************************************************************************
+**
+**  gckOS_CreateUserSignal
+**
+**  Create a new signal to be used in the user space.
+**
+**  INPUT:
+**
+**      gckOS Os
+**          Pointer to an gckOS object.
+**
+**      gctBOOL ManualReset
+**          If set to gcvTRUE, gckOS_Signal with gcvFALSE must be called in
+**          order to set the signal to nonsignaled state.
+**          If set to gcvFALSE, the signal will automatically be set to
+**          nonsignaled state by gckOS_WaitSignal function.
+**
+**  OUTPUT:
+**
+**      gctINT * SignalID
+**          Pointer to a variable receiving the created signal's ID.
+*/
+gceSTATUS
+gckOS_CreateUserSignal(
+    IN gckOS Os,
+    IN gctBOOL ManualReset,
+    OUT gctINT * SignalID
+    )
+{
+    gceSTATUS status;
+    gctSIZE_T signal;
+
+    /* Create a new signal. */
+    gcmkONERROR(gckOS_CreateSignal(Os, ManualReset, (gctSIGNAL *) &signal));
+    *SignalID = (gctINT) signal;
+
+OnError:
+    return status;
+}
+
+/*******************************************************************************
+**
+**  gckOS_DestroyUserSignal
+**
+**  Destroy a signal to be used in the user space.
+**
+**  INPUT:
+**
+**      gckOS Os
+**          Pointer to an gckOS object.
+**
+**      gctINT SignalID
+**          The signal's ID.
+**
+**  OUTPUT:
+**
+**      Nothing.
+*/
+gceSTATUS
+gckOS_DestroyUserSignal(
+    IN gckOS Os,
+    IN gctINT SignalID
+    )
+{
+    return gckOS_DestroySignal(Os, (gctSIGNAL)(gctUINTPTR_T)SignalID);
+}
+
+/*******************************************************************************
+**
+**  gckOS_WaitUserSignal
+**
+**  Wait for a signal used in the user mode to become signaled.
+**
+**  INPUT:
+**
+**      gckOS Os
+**          Pointer to an gckOS object.
+**
+**      gctINT SignalID
+**          Signal ID.
+**
+**      gctUINT32 Wait
+**          Number of milliseconds to wait.
+**          Pass the value of gcvINFINITE for an infinite wait.
+**
+**  OUTPUT:
+**
+**      Nothing.
+*/
+gceSTATUS
+gckOS_WaitUserSignal(
+    IN gckOS Os,
+    IN gctINT SignalID,
+    IN gctUINT32 Wait
+    )
+{
+    return gckOS_WaitSignal(Os, (gctSIGNAL)(gctUINTPTR_T)SignalID, Wait);
+}
+
+/*******************************************************************************
+**
+**  gckOS_SignalUserSignal
+**
+**  Set a state of the specified signal to be used in the user space.
+**
+**  INPUT:
+**
+**      gckOS Os
+**          Pointer to an gckOS object.
+**
+**      gctINT SignalID
+**          SignalID.
+**
+**      gctBOOL State
+**          If gcvTRUE, the signal will be set to signaled state.
+**          If gcvFALSE, the signal will be set to nonsignaled state.
+**
+**  OUTPUT:
+**
+**      Nothing.
+*/
+gceSTATUS
+gckOS_SignalUserSignal(
+    IN gckOS Os,
+    IN gctINT SignalID,
+    IN gctBOOL State
+    )
+{
+    return gckOS_Signal(Os, (gctSIGNAL)(gctUINTPTR_T)SignalID, State);
+}
+
+
+/******************************************************************************\
+******************************** Software Timer ********************************
+\******************************************************************************/
+
+void
+_TimerFunction(
+    struct work_struct * work
+    )
+{
+    gcsOSTIMER_PTR timer = (gcsOSTIMER_PTR)work;
+
+    gctTIMERFUNCTION function = timer->function;
+
+    function(timer->data);
+}
+
+/*******************************************************************************
+**
+**  gckOS_CreateTimer
+**
+**  Create a software timer.
+**
+**  INPUT:
+**
+**      gckOS Os
+**          Pointer to the gckOS object.
+**
+**      gctTIMERFUNCTION Function.
+**          Pointer to a call back function which will be called when timer is
+**          expired.
+**
+**      gctPOINTER Data.
+**          Private data which will be passed to call back function.
+**
+**  OUTPUT:
+**
+**      gctPOINTER * Timer
+**          Pointer to a variable receiving the created timer.
+*/
+gceSTATUS
+gckOS_CreateTimer(
+    IN gckOS Os,
+    IN gctTIMERFUNCTION Function,
+    IN gctPOINTER Data,
+    OUT gctPOINTER * Timer
+    )
+{
+    gceSTATUS status;
+    gcsOSTIMER_PTR pointer;
+    gcmkHEADER_ARG("Os=0x%X Function=0x%X Data=0x%X", Os, Function, Data);
+
+    /* Verify the arguments. */
+    gcmkVERIFY_OBJECT(Os, gcvOBJ_OS);
+    gcmkVERIFY_ARGUMENT(Timer != gcvNULL);
+
+    gcmkONERROR(gckOS_Allocate(Os, sizeof(gcsOSTIMER), (gctPOINTER)&pointer));
+
+    pointer->function = Function;
+    pointer->data = Data;
+
+    INIT_DELAYED_WORK(&pointer->work, _TimerFunction);
+
+    *Timer = pointer;
+
+    gcmkFOOTER_NO();
+    return gcvSTATUS_OK;
+
+OnError:
+    gcmkFOOTER();
+    return status;
+}
+
+/*******************************************************************************
+**
+**  gckOS_DestroyTimer
+**
+**  Destory a software timer.
+**
+**  INPUT:
+**
+**      gckOS Os
+**          Pointer to the gckOS object.
+**
+**      gctPOINTER Timer
+**          Pointer to the timer to be destoryed.
+**
+**  OUTPUT:
+**
+**      Nothing.
+*/
+gceSTATUS
+gckOS_DestroyTimer(
+    IN gckOS Os,
+    IN gctPOINTER Timer
+    )
+{
+    gcsOSTIMER_PTR timer;
+    gcmkHEADER_ARG("Os=0x%X Timer=0x%X", Os, Timer);
+
+    gcmkVERIFY_OBJECT(Os, gcvOBJ_OS);
+    gcmkVERIFY_ARGUMENT(Timer != gcvNULL);
+
+    timer = (gcsOSTIMER_PTR)Timer;
+
+#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,23)
+    cancel_delayed_work_sync(&timer->work);
+#else
+    cancel_delayed_work(&timer->work);
+    flush_workqueue(Os->workqueue);
+#endif
+
+    gcmkVERIFY_OK(gcmkOS_SAFE_FREE(Os, Timer));
+
+    gcmkFOOTER_NO();
+    return gcvSTATUS_OK;
+}
+
+/*******************************************************************************
+**
+**  gckOS_StartTimer
+**
+**  Schedule a software timer.
+**
+**  INPUT:
+**
+**      gckOS Os
+**          Pointer to the gckOS object.
+**
+**      gctPOINTER Timer
+**          Pointer to the timer to be scheduled.
+**
+**      gctUINT32 Delay
+**          Delay in milliseconds.
+**
+**  OUTPUT:
+**
+**      Nothing.
+*/
+gceSTATUS
+gckOS_StartTimer(
+    IN gckOS Os,
+    IN gctPOINTER Timer,
+    IN gctUINT32 Delay
+    )
+{
+    gcsOSTIMER_PTR timer;
+
+    gcmkHEADER_ARG("Os=0x%X Timer=0x%X Delay=%u", Os, Timer, Delay);
+
+    gcmkVERIFY_OBJECT(Os, gcvOBJ_OS);
+    gcmkVERIFY_ARGUMENT(Timer != gcvNULL);
+    gcmkVERIFY_ARGUMENT(Delay != 0);
+
+    timer = (gcsOSTIMER_PTR)Timer;
+
+#if LINUX_VERSION_CODE >= KERNEL_VERSION(3,7,0)
+    mod_delayed_work(Os->workqueue, &timer->work, msecs_to_jiffies(Delay));
+#else
+    if (unlikely(delayed_work_pending(&timer->work)))
+    {
+#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,23)
+        cancel_delayed_work_sync(&timer->work);
+#else
+        cancel_delayed_work(&timer->work);
+        flush_workqueue(Os->workqueue);
+#endif
+    }
+
+    queue_delayed_work(Os->workqueue, &timer->work, msecs_to_jiffies(Delay));
+#endif
+
+    gcmkFOOTER_NO();
+    return gcvSTATUS_OK;
+}
+
+/*******************************************************************************
+**
+**  gckOS_StopTimer
+**
+**  Cancel a unscheduled timer.
+**
+**  INPUT:
+**
+**      gckOS Os
+**          Pointer to the gckOS object.
+**
+**      gctPOINTER Timer
+**          Pointer to the timer to be cancel.
+**
+**  OUTPUT:
+**
+**      Nothing.
+*/
+gceSTATUS
+gckOS_StopTimer(
+    IN gckOS Os,
+    IN gctPOINTER Timer
+    )
+{
+    gcsOSTIMER_PTR timer;
+    gcmkHEADER_ARG("Os=0x%X Timer=0x%X", Os, Timer);
+
+    gcmkVERIFY_OBJECT(Os, gcvOBJ_OS);
+    gcmkVERIFY_ARGUMENT(Timer != gcvNULL);
+
+    timer = (gcsOSTIMER_PTR)Timer;
+
+    cancel_delayed_work(&timer->work);
+
+    gcmkFOOTER_NO();
+    return gcvSTATUS_OK;
+}
+
+gceSTATUS
+gckOS_GetProcessNameByPid(
+    IN gctINT Pid,
+    IN gctSIZE_T Length,
+    OUT gctUINT8_PTR String
+    )
+{
+    struct task_struct *task;
+
+    /* Get the task_struct of the task with pid. */
+    rcu_read_lock();
+
+    task = FIND_TASK_BY_PID(Pid);
+
+    if (task == gcvNULL)
+    {
+        rcu_read_unlock();
+        return gcvSTATUS_NOT_FOUND;
+    }
+
+    /* Get name of process. */
+    strncpy(String, task->comm, Length);
+
+    rcu_read_unlock();
+
+    return gcvSTATUS_OK;
+}
+
+gceSTATUS
+gckOS_DumpCallStack(
+    IN gckOS Os
+    )
+{
+    gcmkHEADER_ARG("Os=0x%X", Os);
+
+    gcmkVERIFY_OBJECT(Os, gcvOBJ_OS);
+
+    dump_stack();
+
+    gcmkFOOTER_NO();
+    return gcvSTATUS_OK;
+}
+
+/*******************************************************************************
+**
+**  gckOS_DetectProcessByName
+**
+**      task->comm maybe part of process name, so this function
+**      can only be used for debugging.
+**
+**  INPUT:
+**
+**      gctCONST_POINTER Name
+**          Pointer to a string to hold name to be check. If the length
+**          of name is longer than TASK_COMM_LEN (16), use part of name
+**          to detect.
+**
+**  OUTPUT:
+**
+**      gcvSTATUS_TRUE if name of current process matches Name.
+**
+*/
+gceSTATUS
+gckOS_DetectProcessByName(
+    IN gctCONST_POINTER Name
+    )
+{
+    char comm[sizeof(current->comm)];
+
+    memset(comm, 0, sizeof(comm));
+
+    gcmkVERIFY_OK(
+        gckOS_GetProcessNameByPid(_GetProcessID(), sizeof(current->comm), comm));
+
+    return strstr(comm, Name) ? gcvSTATUS_TRUE
+                              : gcvSTATUS_FALSE;
+}
+
+#if gcdANDROID_NATIVE_FENCE_SYNC
+
+gceSTATUS
+gckOS_CreateSyncPoint(
+    IN gckOS Os,
+    OUT gctSYNC_POINT * SyncPoint
+    )
+{
+    gceSTATUS status;
+    gcsSYNC_POINT_PTR syncPoint;
+
+    gcmkHEADER_ARG("Os=0x%X", Os);
+
+    /* Verify the arguments. */
+    gcmkVERIFY_OBJECT(Os, gcvOBJ_OS);
+
+    /* Create an sync point structure. */
+    syncPoint = (gcsSYNC_POINT_PTR) kmalloc(
+            sizeof(gcsSYNC_POINT), GFP_KERNEL | gcdNOWARN);
+
+    if (syncPoint == gcvNULL)
+    {
+        gcmkONERROR(gcvSTATUS_OUT_OF_MEMORY);
+    }
+
+    /* Initialize the sync point. */
+    atomic_set(&syncPoint->ref, 1);
+    atomic_set(&syncPoint->state, 0);
+
+    gcmkONERROR(_AllocateIntegerId(&Os->syncPointDB, syncPoint, &syncPoint->id));
+
+    *SyncPoint = (gctSYNC_POINT)(gctUINTPTR_T)syncPoint->id;
+
+    gcmkFOOTER_ARG("*SyncPonint=%d", syncPoint->id);
+    return gcvSTATUS_OK;
+
+OnError:
+    if (syncPoint != gcvNULL)
+    {
+        kfree(syncPoint);
+    }
+
+    gcmkFOOTER();
+    return status;
+}
+
+gceSTATUS
+gckOS_ReferenceSyncPoint(
+    IN gckOS Os,
+    IN gctSYNC_POINT SyncPoint
+    )
+{
+    gceSTATUS status;
+    gcsSYNC_POINT_PTR syncPoint;
+
+    gcmkHEADER_ARG("Os=0x%X", Os);
+
+    /* Verify the arguments. */
+    gcmkVERIFY_OBJECT(Os, gcvOBJ_OS);
+    gcmkVERIFY_ARGUMENT(SyncPoint != gcvNULL);
+
+    gcmkONERROR(
+        _QueryIntegerId(&Os->syncPointDB,
+                        (gctUINT32)(gctUINTPTR_T)SyncPoint,
+                        (gctPOINTER)&syncPoint));
+
+    /* Initialize the sync point. */
+    atomic_inc(&syncPoint->ref);
+
+    gcmkFOOTER_NO();
+    return gcvSTATUS_OK;
+
+OnError:
+    gcmkFOOTER();
+    return status;
+}
+
+gceSTATUS
+gckOS_DestroySyncPoint(
+    IN gckOS Os,
+    IN gctSYNC_POINT SyncPoint
+    )
+{
+    gceSTATUS status;
+    gcsSYNC_POINT_PTR syncPoint;
+    gctBOOL acquired = gcvFALSE;
+
+    gcmkHEADER_ARG("Os=0x%X SyncPoint=%d", Os, (gctUINT32)(gctUINTPTR_T)SyncPoint);
+
+    /* Verify the arguments. */
+    gcmkVERIFY_OBJECT(Os, gcvOBJ_OS);
+    gcmkVERIFY_ARGUMENT(SyncPoint != gcvNULL);
+
+    gcmkONERROR(gckOS_AcquireMutex(Os, Os->syncPointMutex, gcvINFINITE));
+    acquired = gcvTRUE;
+
+    gcmkONERROR(
+        _QueryIntegerId(&Os->syncPointDB,
+                        (gctUINT32)(gctUINTPTR_T)SyncPoint,
+                        (gctPOINTER)&syncPoint));
+
+    gcmkASSERT(syncPoint->id == (gctUINT32)(gctUINTPTR_T)SyncPoint);
+
+    if (atomic_dec_and_test(&syncPoint->ref))
+    {
+        gcmkVERIFY_OK(_DestroyIntegerId(&Os->syncPointDB, syncPoint->id));
+
+        /* Free the sgianl. */
+        syncPoint->timeline = gcvNULL;
+        kfree(syncPoint);
+    }
+
+    gcmkVERIFY_OK(gckOS_ReleaseMutex(Os, Os->syncPointMutex));
+    acquired = gcvFALSE;
+
+    /* Success. */
+    gcmkFOOTER_NO();
+    return gcvSTATUS_OK;
+
+OnError:
+    if (acquired)
+    {
+        /* Release the mutex. */
+        gcmkVERIFY_OK(gckOS_ReleaseMutex(Os, Os->syncPointMutex));
+    }
+
+    gcmkFOOTER();
+    return status;
+}
+
+gceSTATUS
+gckOS_SignalSyncPoint(
+    IN gckOS Os,
+    IN gctSYNC_POINT SyncPoint
+    )
+{
+    gceSTATUS status;
+    gcsSYNC_POINT_PTR syncPoint;
+    struct sync_timeline * timeline;
+    gctBOOL acquired = gcvFALSE;
+
+    gcmkHEADER_ARG("Os=0x%X SyncPoint=%d", Os, (gctUINT32)(gctUINTPTR_T)SyncPoint);
+
+    /* Verify the arguments. */
+    gcmkVERIFY_OBJECT(Os, gcvOBJ_OS);
+    gcmkVERIFY_ARGUMENT(SyncPoint != gcvNULL);
+
+    gcmkONERROR(gckOS_AcquireMutex(Os, Os->syncPointMutex, gcvINFINITE));
+    acquired = gcvTRUE;
+
+    gcmkONERROR(
+        _QueryIntegerId(&Os->syncPointDB,
+                        (gctUINT32)(gctUINTPTR_T)SyncPoint,
+                        (gctPOINTER)&syncPoint));
+
+    gcmkASSERT(syncPoint->id == (gctUINT32)(gctUINTPTR_T)SyncPoint);
+
+    /* Set signaled state. */
+    atomic_set(&syncPoint->state, 1);
+
+    /* Get parent timeline. */
+    timeline = syncPoint->timeline;
+
+    gcmkVERIFY_OK(gckOS_ReleaseMutex(Os, Os->syncPointMutex));
+    acquired = gcvFALSE;
+
+    /* Signal timeline. */
+    if (timeline)
+    {
+        sync_timeline_signal(timeline);
+    }
+
+    /* Success. */
+    gcmkFOOTER_NO();
+    return gcvSTATUS_OK;
+
+OnError:
+    if (acquired)
+    {
+        /* Release the mutex. */
+        gcmkVERIFY_OK(gckOS_ReleaseMutex(Os, Os->syncPointMutex));
+    }
+
+    gcmkFOOTER();
+    return status;
+}
+
+gceSTATUS
+gckOS_QuerySyncPoint(
+    IN gckOS Os,
+    IN gctSYNC_POINT SyncPoint,
+    OUT gctBOOL_PTR State
+    )
+{
+    gceSTATUS status;
+    gcsSYNC_POINT_PTR syncPoint;
+
+    gcmkHEADER_ARG("Os=0x%X SyncPoint=%d", Os, (gctUINT32)(gctUINTPTR_T)SyncPoint);
+
+    /* Verify the arguments. */
+    gcmkVERIFY_OBJECT(Os, gcvOBJ_OS);
+    gcmkVERIFY_ARGUMENT(SyncPoint != gcvNULL);
+
+    gcmkONERROR(
+        _QueryIntegerId(&Os->syncPointDB,
+                        (gctUINT32)(gctUINTPTR_T)SyncPoint,
+                        (gctPOINTER)&syncPoint));
+
+    gcmkASSERT(syncPoint->id == (gctUINT32)(gctUINTPTR_T)SyncPoint);
+
+    /* Get state. */
+    *State = atomic_read(&syncPoint->state);
+
+    /* Success. */
+    gcmkFOOTER_ARG("*State=%d", *State);
+    return gcvSTATUS_OK;
+
+OnError:
+    gcmkFOOTER();
+    return status;
+}
+
+gceSTATUS
+gckOS_CreateSyncTimeline(
+    IN gckOS Os,
+    OUT gctHANDLE * Timeline
+    )
+{
+    struct viv_sync_timeline * timeline;
+
+    /* Create viv sync timeline. */
+    timeline = viv_sync_timeline_create("viv timeline", Os);
+
+    if (timeline == gcvNULL)
+    {
+        /* Out of memory. */
+        return gcvSTATUS_OUT_OF_MEMORY;
+    }
+
+    *Timeline = (gctHANDLE) timeline;
+    return gcvSTATUS_OK;
+}
+
+gceSTATUS
+gckOS_DestroySyncTimeline(
+    IN gckOS Os,
+    IN gctHANDLE Timeline
+    )
+{
+    struct viv_sync_timeline * timeline;
+    gcmkASSERT(Timeline != gcvNULL);
+
+    /* Destroy timeline. */
+    timeline = (struct viv_sync_timeline *) Timeline;
+    sync_timeline_destroy(&timeline->obj);
+
+    return gcvSTATUS_OK;
+}
+
+gceSTATUS
+gckOS_CreateNativeFence(
+    IN gckOS Os,
+    IN gctHANDLE Timeline,
+    IN gctSYNC_POINT SyncPoint,
+    OUT gctINT * FenceFD
+    )
+{
+    int fd = -1;
+    struct viv_sync_timeline *timeline;
+    struct sync_pt * pt = gcvNULL;
+    struct sync_fence * fence;
+    char name[32];
+    gcsSYNC_POINT_PTR syncPoint;
+    gceSTATUS status;
+
+    gcmkHEADER_ARG("Os=0x%X Timeline=0x%X SyncPoint=%d",
+                   Os, Timeline, (gctUINT)(gctUINTPTR_T)SyncPoint);
+
+    gcmkONERROR(
+        _QueryIntegerId(&Os->syncPointDB,
+                        (gctUINT32)(gctUINTPTR_T)SyncPoint,
+                        (gctPOINTER)&syncPoint));
+
+    /* Cast timeline. */
+    timeline = (struct viv_sync_timeline *) Timeline;
+
+    fd = get_unused_fd();
+
+    if (fd < 0)
+    {
+        /* Out of resources. */
+        gcmkONERROR(gcvSTATUS_OUT_OF_RESOURCES);
+    }
+
+    /* Create viv_sync_pt. */
+    pt = viv_sync_pt_create(timeline, SyncPoint);
+
+    if (pt == gcvNULL)
+    {
+        gcmkONERROR(gcvSTATUS_OUT_OF_MEMORY);
+    }
+
+    /* Reference sync_timeline. */
+    syncPoint->timeline = &timeline->obj;
+
+    /* Build fence name. */
+    snprintf(name, 32, "viv sync_fence-%u", (gctUINT)(gctUINTPTR_T)SyncPoint);
+
+    /* Create sync_fence. */
+    fence = sync_fence_create(name, pt);
+
+    if (fence == NULL)
+    {
+        gcmkONERROR(gcvSTATUS_OUT_OF_MEMORY);
+    }
+
+    /* Install fence to fd. */
+    sync_fence_install(fence, fd);
+
+    *FenceFD = fd;
+    gcmkFOOTER_ARG("*FenceFD=%d", fd);
+    return gcvSTATUS_OK;
+
+OnError:
+    /* Error roll back. */
+    if (pt)
+    {
+        sync_pt_free(pt);
+    }
+
+    if (fd > 0)
+    {
+        put_unused_fd(fd);
+    }
+
+    gcmkFOOTER();
+    return status;
+}
+
+gceSTATUS
+gckOS_WaitNativeFence(
+    IN gckOS Os,
+    IN gctHANDLE Timeline,
+    IN gctINT FenceFD,
+    IN gctUINT32 Timeout
+    )
+{
+    struct sync_timeline * timeline;
+    struct list_head *pos;
+    struct sync_fence * fence;
+    gctBOOL wait = gcvFALSE;
+    gceSTATUS status = gcvSTATUS_OK;
+
+    gcmkHEADER_ARG("Os=0x%X Timeline=0x%X FenceFD=%d Timeout=%u",
+                   Os, Timeline, FenceFD, Timeout);
+
+    /* Get shortcut. */
+    timeline = (struct sync_timeline *) Timeline;
+
+    /* Get sync fence. */
+    fence = sync_fence_fdget(FenceFD);
+
+    if (!fence)
+    {
+        gcmkONERROR(gcvSTATUS_INVALID_ARGUMENT);
+    }
+
+    list_for_each(pos, &fence->pt_list_head)
+    {
+        struct sync_pt * pt =
+        container_of(pos, struct sync_pt, pt_list);
+
+        /* Do not need to wait on same timeline. */
+        if (pt->parent != timeline)
+        {
+            wait = gcvTRUE;
+            break;
+        }
+    }
+
+    if (wait)
+    {
+        int err;
+        long timeout = (Timeout == gcvINFINITE) ? - 1 : (long) Timeout;
+        err = sync_fence_wait(fence, timeout);
+
+        switch (err)
+        {
+        case 0:
+            break;
+        case -ETIME:
+            status = gcvSTATUS_TIMEOUT;
+            break;
+        default:
+            gcmkONERROR(gcvSTATUS_GENERIC_IO);
+        }
+    }
+
+    /* Put the fence. */
+    sync_fence_put(fence);
+
+OnError:
+    gcmkFOOTER();
+    return status;
+}
+#endif
+
+
+gceSTATUS
+gckOS_CPUPhysicalToGPUPhysical(
+    IN gckOS Os,
+    IN gctPHYS_ADDR_T CPUPhysical,
+    IN gctPHYS_ADDR_T * GPUPhysical
+    )
+{
+    gcsPLATFORM * platform;
+    gcmkHEADER_ARG("CPUPhysical=0x%X", CPUPhysical);
+
+    platform = Os->device->platform;
+
+    if (platform && platform->ops->getGPUPhysical)
+    {
+        gcmkVERIFY_OK(
+            platform->ops->getGPUPhysical(platform, CPUPhysical, GPUPhysical));
+    }
+    else
+    {
+        *GPUPhysical = CPUPhysical;
+    }
+
+    gcmkFOOTER_NO();
+    return gcvSTATUS_OK;
+}
+
+gceSTATUS
+gckOS_GPUPhysicalToCPUPhysical(
+    IN gckOS Os,
+    IN gctUINT32 GPUPhysical,
+    IN gctUINT32_PTR CPUPhysical
+    )
+{
+    gcmkHEADER_ARG("GPUPhysical=0x%X", GPUPhysical);
+
+    *CPUPhysical = GPUPhysical;
+
+    gcmkFOOTER_NO();
+    return gcvSTATUS_OK;
+}
+
+gceSTATUS
+gckOS_PhysicalToPhysicalAddress(
+    IN gckOS Os,
+    IN gctPOINTER Physical,
+    OUT gctPHYS_ADDR_T * PhysicalAddress
+    )
+{
+    PLINUX_MDL mdl = (PLINUX_MDL)Physical;
+    gckALLOCATOR allocator = mdl->allocator;
+
+    if (allocator)
+    {
+        return allocator->ops->Physical(allocator, mdl, 0, PhysicalAddress);
+    }
+
+    return gcvSTATUS_NOT_SUPPORTED;
+}
+
+gceSTATUS
+gckOS_QueryOption(
+    IN gckOS Os,
+    IN gctCONST_STRING Option,
+    OUT gctUINT32 * Value
+    )
+{
+    gckGALDEVICE device = Os->device;
+
+    if (!strcmp(Option, "physBase"))
+    {
+        *Value = device->physBase;
+        return gcvSTATUS_OK;
+    }
+    else if (!strcmp(Option, "physSize"))
+    {
+        *Value = device->physSize;
+        return gcvSTATUS_OK;
+    }
+    else if (!strcmp(Option, "mmu"))
+    {
+        *Value = device->mmu;
+        return gcvSTATUS_OK;
+    }
+    else if (!strcmp(Option, "contiguousSize"))
+    {
+        *Value = device->contiguousSize;
+        return gcvSTATUS_OK;
+    }
+
+    return gcvSTATUS_NOT_SUPPORTED;
+}
+
+static int
+fd_release(
+    struct inode *inode,
+    struct file *file
+    )
+{
+    gcsFDPRIVATE_PTR private = (gcsFDPRIVATE_PTR)file->private_data;
+
+    if (private && private->release)
+    {
+        return private->release(private);
+    }
+
+    return 0;
+}
+
+static const struct file_operations fd_fops = {
+    .release = fd_release,
+};
+
+gceSTATUS
+gckOS_GetFd(
+    IN gctSTRING Name,
+    IN gcsFDPRIVATE_PTR Private,
+    OUT gctINT *Fd
+    )
+{
+#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,27)
+    *Fd = anon_inode_getfd(Name, &fd_fops, Private, O_RDWR);
+
+    if (*Fd < 0)
+    {
+        return gcvSTATUS_OUT_OF_RESOURCES;
+    }
+
+    return gcvSTATUS_OK;
+#else
+    return gcvSTATUS_NOT_SUPPORTED;
+#endif
+}
+
+/*******************************************************************************
+**
+**  gckOS_WrapMemory
+**
+**  Import a number of pages allocated by other allocator.
+**
+**  INPUT:
+**
+**      gckOS Os
+**          Pointer to an gckOS object.
+**
+**      gctUINT32 Flag
+**          Memory type.
+**
+**  OUTPUT:
+**
+**      gctSIZE_T * Bytes
+**          Pointer to a variable that hold the number of bytes allocated.
+**
+**      gctPHYS_ADDR * Physical
+**          Pointer to a variable that will hold the physical address of the
+**          allocation.
+*/
+gceSTATUS
+gckOS_WrapMemory(
+    IN gckOS Os,
+    IN gcsUSER_MEMORY_DESC_PTR Desc,
+    OUT gctSIZE_T *Bytes,
+    OUT gctPHYS_ADDR * Physical
+    )
+{
+    PLINUX_MDL mdl = gcvNULL;
+    gceSTATUS status = gcvSTATUS_OUT_OF_MEMORY;
+    gckALLOCATOR allocator;
+    gcsATTACH_DESC desc;
+    gctUINT32 flag;
+
+    gcmkHEADER_ARG("Os=0x%X ", Os);
+
+    /* Verify the arguments. */
+    gcmkVERIFY_OBJECT(Os, gcvOBJ_OS);
+    gcmkVERIFY_ARGUMENT(Physical != gcvNULL);
+
+    mdl = _CreateMdl();
+    if (mdl == gcvNULL)
+    {
+        gcmkONERROR(gcvSTATUS_OUT_OF_MEMORY);
+    }
+
+    desc.handle = Desc->handle;
+    desc.memory = gcmUINT64_TO_PTR(Desc->logical);
+    desc.physical = Desc->physical;
+    desc.size = Desc->size;
+    flag = Desc->flag;
+
+    /* Walk all allocators. */
+    list_for_each_entry(allocator, &Os->allocatorList, head)
+    {
+        gcmkTRACE_ZONE(gcvLEVEL_INFO, gcvZONE_OS,
+                       "%s(%d) Flag = %x allocator->capability = %x",
+                        __FUNCTION__, __LINE__, flag, allocator->capability);
+
+        if ((flag & allocator->capability) != flag)
+        {
+            status = gcvSTATUS_NOT_SUPPORTED;
+            continue;
+        }
+
+        status = allocator->ops->Attach(allocator, &desc, mdl);
+
+        if (gcmIS_SUCCESS(status))
+        {
+            mdl->allocator = allocator;
+            break;
+        }
+    }
+
+    /* Check status. */
+    gcmkONERROR(status);
+
+    mdl->dmaHandle  = 0;
+    mdl->addr       = 0;
+    mdl->pagedMem   = 1;
+
+    *Bytes = mdl->numPages * PAGE_SIZE;
+
+    /* Return physical address. */
+    *Physical = (gctPHYS_ADDR) mdl;
+
+    MEMORY_LOCK(Os);
+
+    /*
+     * Add this to a global list.
+     * Will be used by get physical address
+     * and mapuser pointer functions.
+     */
+    if (!Os->mdlHead)
+    {
+        /* Initialize the queue. */
+        Os->mdlHead = Os->mdlTail = mdl;
+    }
+    else
+    {
+        /* Add to tail. */
+        mdl->prev           = Os->mdlTail;
+        Os->mdlTail->next   = mdl;
+        Os->mdlTail         = mdl;
+    }
+
+    MEMORY_UNLOCK(Os);
+
+    /* Success. */
+    gcmkFOOTER_ARG("*Physical=0x%X", *Physical);
+    return gcvSTATUS_OK;
+
+OnError:
+    if (mdl != gcvNULL)
+    {
+        /* Free the memory. */
+        _DestroyMdl(mdl);
+    }
+
+    /* Return the status. */
+    gcmkFOOTER();
+    return status;
+}
+
diff --git a/src/hal/os/linux/kernel/gc_hal_kernel_os.h b/src/hal/os/linux/kernel/gc_hal_kernel_os.h
new file mode 100755
index 0000000..692a5a8
--- /dev/null
+++ b/src/hal/os/linux/kernel/gc_hal_kernel_os.h
@@ -0,0 +1,124 @@
+/****************************************************************************
+*
+*    The MIT License (MIT)
+*
+*    Copyright (c) 2014 Vivante Corporation
+*
+*    Permission is hereby granted, free of charge, to any person obtaining a
+*    copy of this software and associated documentation files (the "Software"),
+*    to deal in the Software without restriction, including without limitation
+*    the rights to use, copy, modify, merge, publish, distribute, sublicense,
+*    and/or sell copies of the Software, and to permit persons to whom the
+*    Software is furnished to do so, subject to the following conditions:
+*
+*    The above copyright notice and this permission notice shall be included in
+*    all copies or substantial portions of the Software.
+*
+*    THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+*    IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+*    FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+*    AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+*    LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+*    FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+*    DEALINGS IN THE SOFTWARE.
+*
+*****************************************************************************
+*
+*    The GPL License (GPL)
+*
+*    Copyright (C) 2014  Vivante Corporation
+*
+*    This program is free software; you can redistribute it and/or
+*    modify it under the terms of the GNU General Public License
+*    as published by the Free Software Foundation; either version 2
+*    of the License, or (at your option) any later version.
+*
+*    This program is distributed in the hope that it will be useful,
+*    but WITHOUT ANY WARRANTY; without even the implied warranty of
+*    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+*    GNU General Public License for more details.
+*
+*    You should have received a copy of the GNU General Public License
+*    along with this program; if not, write to the Free Software Foundation,
+*    Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+*
+*****************************************************************************
+*
+*    Note: This software is released under dual MIT and GPL licenses. A
+*    recipient may use this file under the terms of either the MIT license or
+*    GPL License. If you wish to use only one license not the other, you can
+*    indicate your decision by deleting one of the above license notices in your
+*    version of this file.
+*
+*****************************************************************************/
+
+
+#ifndef __gc_hal_kernel_os_h_
+#define __gc_hal_kernel_os_h_
+
+typedef struct _LINUX_MDL_MAP
+{
+    gctINT                  pid;
+    gctPOINTER              vmaAddr;
+    gctUINT32               count;
+    struct vm_area_struct * vma;
+    struct _LINUX_MDL_MAP * next;
+}
+LINUX_MDL_MAP;
+
+typedef struct _LINUX_MDL_MAP * PLINUX_MDL_MAP;
+
+typedef struct _LINUX_MDL
+{
+    char *                  addr;
+
+    union _pages
+    {
+        /* Pointer to a array of pages. */
+        struct page *       contiguousPages;
+        /* Pointer to a array of pointers to page. */
+        struct page **      nonContiguousPages;
+    }
+    u;
+
+#ifdef NO_DMA_COHERENT
+    gctPOINTER              kaddr;
+#endif /* NO_DMA_COHERENT */
+
+    gctINT                  numPages;
+    gctINT                  pagedMem;
+    gctBOOL                 contiguous;
+#if LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 27)
+    gctBOOL                 exact;
+#endif
+    dma_addr_t              dmaHandle;
+    PLINUX_MDL_MAP          maps;
+    struct _LINUX_MDL *     prev;
+    struct _LINUX_MDL *     next;
+
+    /* Pointer to allocator which allocates memory for this mdl. */
+    void *                  allocator;
+
+    /* Private data used by allocator. */
+    void *                  priv;
+
+    uint                    gid;
+}
+LINUX_MDL, *PLINUX_MDL;
+
+extern PLINUX_MDL_MAP
+FindMdlMap(
+    IN PLINUX_MDL Mdl,
+    IN gctINT PID
+    );
+
+typedef struct _DRIVER_ARGS
+{
+    gctUINT64               InputBuffer;
+    gctUINT64               InputBufferSize;
+    gctUINT64               OutputBuffer;
+    gctUINT64               OutputBufferSize;
+}
+DRIVER_ARGS;
+
+#endif /* __gc_hal_kernel_os_h_ */
diff --git a/src/hal/os/linux/kernel/gc_hal_kernel_platform.h b/src/hal/os/linux/kernel/gc_hal_kernel_platform.h
new file mode 100755
index 0000000..bf19409
--- /dev/null
+++ b/src/hal/os/linux/kernel/gc_hal_kernel_platform.h
@@ -0,0 +1,342 @@
+/****************************************************************************
+*
+*    The MIT License (MIT)
+*
+*    Copyright (c) 2014 Vivante Corporation
+*
+*    Permission is hereby granted, free of charge, to any person obtaining a
+*    copy of this software and associated documentation files (the "Software"),
+*    to deal in the Software without restriction, including without limitation
+*    the rights to use, copy, modify, merge, publish, distribute, sublicense,
+*    and/or sell copies of the Software, and to permit persons to whom the
+*    Software is furnished to do so, subject to the following conditions:
+*
+*    The above copyright notice and this permission notice shall be included in
+*    all copies or substantial portions of the Software.
+*
+*    THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+*    IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+*    FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+*    AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+*    LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+*    FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+*    DEALINGS IN THE SOFTWARE.
+*
+*****************************************************************************
+*
+*    The GPL License (GPL)
+*
+*    Copyright (C) 2014  Vivante Corporation
+*
+*    This program is free software; you can redistribute it and/or
+*    modify it under the terms of the GNU General Public License
+*    as published by the Free Software Foundation; either version 2
+*    of the License, or (at your option) any later version.
+*
+*    This program is distributed in the hope that it will be useful,
+*    but WITHOUT ANY WARRANTY; without even the implied warranty of
+*    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+*    GNU General Public License for more details.
+*
+*    You should have received a copy of the GNU General Public License
+*    along with this program; if not, write to the Free Software Foundation,
+*    Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+*
+*****************************************************************************
+*
+*    Note: This software is released under dual MIT and GPL licenses. A
+*    recipient may use this file under the terms of either the MIT license or
+*    GPL License. If you wish to use only one license not the other, you can
+*    indicate your decision by deleting one of the above license notices in your
+*    version of this file.
+*
+*****************************************************************************/
+
+
+#ifndef _gc_hal_kernel_platform_h_
+#define _gc_hal_kernel_platform_h_
+#include <linux/mm.h>
+
+typedef struct _gcsMODULE_PARAMETERS
+{
+#if gcdMULTI_GPU || gcdMULTI_GPU_AFFINITY
+    gctINT  irqLine3D0;
+    gctUINT registerMemBase3D0;
+    gctUINT registerMemSize3D0;
+    gctINT  irqLine3D1;
+    gctUINT registerMemBase3D1;
+    gctUINT registerMemSize3D1;
+#else
+    gctINT  irqLine;
+    gctUINT registerMemBase;
+    gctUINT registerMemSize;
+#endif
+    gctINT  irqLine2D;
+    gctUINT registerMemBase2D;
+    gctUINT registerMemSize2D;
+    gctINT  irqLineVG;
+    gctUINT registerMemBaseVG;
+    gctUINT registerMemSizeVG;
+    gctUINT contiguousSize;
+    gctUINT contiguousBase;
+    gctUINT contiguousRequested;
+    gctUINT bankSize;
+    gctINT  fastClear;
+    gctINT  compression;
+    gctINT  powerManagement;
+    gctINT  gpuProfiler;
+    gctINT  signal;
+    gctUINT baseAddress;
+    gctUINT physSize;
+    gctUINT logFileSize;
+    gctUINT recovery;
+    gctUINT stuckDump;
+    gctUINT showArgs;
+    gctUINT gpu3DMinClock;
+    gctBOOL registerMemMapped;
+    gctPOINTER registerMemAddress;
+}
+gcsMODULE_PARAMETERS;
+
+typedef struct _gcsPLATFORM * gckPLATFORM;
+
+typedef struct _gcsPLATFORM_OPERATIONS
+{
+    /*******************************************************************************
+    **
+    **  needAddDevice
+    **
+    **  Determine whether platform_device is created by initialization code.
+    **  If platform_device is created by BSP, return gcvFLASE here.
+    */
+    gctBOOL
+    (*needAddDevice)(
+        IN gckPLATFORM Platform
+        );
+
+    /*******************************************************************************
+    **
+    **  adjustParam
+    **
+    **  Override content of arguments, if a argument is not changed here, it will
+    **  keep as default value or value set by insmod command line.
+    */
+    gceSTATUS
+    (*adjustParam)(
+        IN gckPLATFORM Platform,
+        OUT gcsMODULE_PARAMETERS *Args
+        );
+
+    /*******************************************************************************
+    **
+    **  adjustDriver
+    **
+    **  Override content of platform_driver which will be registered.
+    */
+    gceSTATUS
+    (*adjustDriver)(
+        IN gckPLATFORM Platform
+        );
+
+    /*******************************************************************************
+    **
+    **  getPower
+    **
+    **  Prepare power and clock operation.
+    */
+    gceSTATUS
+    (*getPower)(
+        IN gckPLATFORM Platform
+        );
+
+    /*******************************************************************************
+    **
+    **  putPower
+    **
+    **  Finish power and clock operation.
+    */
+    gceSTATUS
+    (*putPower)(
+        IN gckPLATFORM Platform
+        );
+
+    /*******************************************************************************
+    **
+    **  allocPriv
+    **
+    **  Construct platform private data.
+    */
+    gceSTATUS
+    (*allocPriv)(
+        IN gckPLATFORM Platform
+        );
+
+    /*******************************************************************************
+    **
+    **  freePriv
+    **
+    **  free platform private data.
+    */
+    gceSTATUS
+    (*freePriv)(
+        IN gckPLATFORM Platform
+        );
+
+    /*******************************************************************************
+    **
+    **  setPower
+    **
+    **  Set power state of specified GPU.
+    **
+    **  INPUT:
+    **
+    **      gceCORE GPU
+    **          GPU neeed to config.
+    **
+    **      gceBOOL Enable
+    **          Enable or disable power.
+    */
+    gceSTATUS
+    (*setPower)(
+        IN gckPLATFORM Platform,
+        IN gceCORE GPU,
+        IN gctBOOL Enable
+        );
+
+    /*******************************************************************************
+    **
+    **  setClock
+    **
+    **  Set clock state of specified GPU.
+    **
+    **  INPUT:
+    **
+    **      gceCORE GPU
+    **          GPU neeed to config.
+    **
+    **      gceBOOL Enable
+    **          Enable or disable clock.
+    */
+    gceSTATUS
+    (*setClock)(
+        IN gckPLATFORM Platform,
+        IN gceCORE GPU,
+        IN gctBOOL Enable
+        );
+
+    /*******************************************************************************
+    **
+    **  reset
+    **
+    **  Reset GPU outside.
+    **
+    **  INPUT:
+    **
+    **      gceCORE GPU
+    **          GPU neeed to reset.
+    */
+    gceSTATUS
+    (*reset)(
+        IN gckPLATFORM Platform,
+        IN gceCORE GPU
+        );
+
+    /*******************************************************************************
+    **
+    **  getGPUPhysical
+    **
+    **  Convert CPU physical address to GPU physical address if they are
+    **  different.
+    */
+    gceSTATUS
+    (*getGPUPhysical)(
+        IN gckPLATFORM Platform,
+        IN gctPHYS_ADDR_T CPUPhysical,
+        OUT gctPHYS_ADDR_T * GPUPhysical
+        );
+
+    /*******************************************************************************
+    **
+    **  adjustProt
+    **
+    **  Override Prot flag when mapping paged memory to userspace.
+    */
+    gceSTATUS
+    (*adjustProt)(
+        IN struct vm_area_struct * vma
+        );
+
+    /*******************************************************************************
+    **
+    **  shrinkMemory
+    **
+    **  Do something to collect memory, eg, act as oom killer.
+    */
+    gceSTATUS
+    (*shrinkMemory)(
+        IN gckPLATFORM Platform
+        );
+
+    /*******************************************************************************
+    **
+    **  cache
+    **
+    **  Cache operation.
+    */
+    gceSTATUS
+    (*cache)(
+        IN gckPLATFORM Platform,
+        IN gctUINT32 ProcessID,
+        IN gctPHYS_ADDR Handle,
+        IN gctUINT32 Physical,
+        IN gctPOINTER Logical,
+        IN gctSIZE_T Bytes,
+        IN gceCACHEOPERATION Operation
+        );
+
+    /*******************************************************************************
+    **
+    **  name
+    **
+    **  Get name of platform code.
+    **
+    **  There is a helper macro gcmkPLATFORM_Name which defines a default callback
+    **  function _Name() which uses code path as name.
+    */
+    gceSTATUS
+    (*name)(
+        IN gckPLATFORM Platform,
+        IN gctCONST_STRING * Name
+        );
+
+}
+gcsPLATFORM_OPERATIONS;
+
+typedef struct _gcsPLATFORM
+{
+    struct platform_device* device;
+    struct platform_driver* driver;
+
+    gcsPLATFORM_OPERATIONS* ops;
+
+    void*                   priv;
+}
+gcsPLATFORM;
+
+void
+gckPLATFORM_QueryOperations(
+    IN gcsPLATFORM_OPERATIONS ** Operations
+    );
+
+#define gcmkPLATFROM_Name               \
+static gceSTATUS                        \
+_Name(                                  \
+    IN gckPLATFORM Platform,            \
+    IN gctCONST_STRING * Name           \
+    )                                   \
+{                                       \
+    * Name = __FILE__;                  \
+    return gcvSTATUS_OK;                \
+}                                       \
+
+#endif
diff --git a/src/hal/os/linux/kernel/gc_hal_kernel_probe.c b/src/hal/os/linux/kernel/gc_hal_kernel_probe.c
new file mode 100755
index 0000000..473a266
--- /dev/null
+++ b/src/hal/os/linux/kernel/gc_hal_kernel_probe.c
@@ -0,0 +1,1361 @@
+/****************************************************************************
+*
+*    The MIT License (MIT)
+*
+*    Copyright (c) 2014 Vivante Corporation
+*
+*    Permission is hereby granted, free of charge, to any person obtaining a
+*    copy of this software and associated documentation files (the "Software"),
+*    to deal in the Software without restriction, including without limitation
+*    the rights to use, copy, modify, merge, publish, distribute, sublicense,
+*    and/or sell copies of the Software, and to permit persons to whom the
+*    Software is furnished to do so, subject to the following conditions:
+*
+*    The above copyright notice and this permission notice shall be included in
+*    all copies or substantial portions of the Software.
+*
+*    THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+*    IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+*    FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+*    AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+*    LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+*    FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+*    DEALINGS IN THE SOFTWARE.
+*
+*****************************************************************************
+*
+*    The GPL License (GPL)
+*
+*    Copyright (C) 2014  Vivante Corporation
+*
+*    This program is free software; you can redistribute it and/or
+*    modify it under the terms of the GNU General Public License
+*    as published by the Free Software Foundation; either version 2
+*    of the License, or (at your option) any later version.
+*
+*    This program is distributed in the hope that it will be useful,
+*    but WITHOUT ANY WARRANTY; without even the implied warranty of
+*    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+*    GNU General Public License for more details.
+*
+*    You should have received a copy of the GNU General Public License
+*    along with this program; if not, write to the Free Software Foundation,
+*    Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+*
+*****************************************************************************
+*
+*    Note: This software is released under dual MIT and GPL licenses. A
+*    recipient may use this file under the terms of either the MIT license or
+*    GPL License. If you wish to use only one license not the other, you can
+*    indicate your decision by deleting one of the above license notices in your
+*    version of this file.
+*
+*****************************************************************************/
+
+
+#include <linux/device.h>
+#include <linux/slab.h>
+
+#include "gc_hal_kernel_linux.h"
+#include "gc_hal_driver.h"
+
+#if USE_PLATFORM_DRIVER
+#   include <linux/platform_device.h>
+#endif
+
+#ifdef CONFIG_PXA_DVFM
+#   include <mach/dvfm.h>
+#   include <mach/pxa3xx_dvfm.h>
+#endif
+
+
+/* Zone used for header/footer. */
+#define _GC_OBJ_ZONE    gcvZONE_DRIVER
+
+MODULE_DESCRIPTION("Vivante Graphics Driver");
+MODULE_LICENSE("GPL");
+
+static struct class* gpuClass;
+
+static gcsPLATFORM platform;
+
+static gckGALDEVICE galDevice;
+
+static uint major = 199;
+module_param(major, uint, 0644);
+
+#if gcdMULTI_GPU || gcdMULTI_GPU_AFFINITY
+static int irqLine3D0 = -1;
+module_param(irqLine3D0, int, 0644);
+
+static ulong registerMemBase3D0 = 0;
+module_param(registerMemBase3D0, ulong, 0644);
+
+static ulong registerMemSize3D0 = 2 << 10;
+module_param(registerMemSize3D0, ulong, 0644);
+
+static int irqLine3D1 = -1;
+module_param(irqLine3D1, int, 0644);
+
+static ulong registerMemBase3D1 = 0;
+module_param(registerMemBase3D1, ulong, 0644);
+
+static ulong registerMemSize3D1 = 2 << 10;
+module_param(registerMemSize3D1, ulong, 0644);
+#else
+static int irqLine = -1;
+module_param(irqLine, int, 0644);
+
+static ulong registerMemBase = 0x80000000;
+module_param(registerMemBase, ulong, 0644);
+
+static ulong registerMemSize = 2 << 10;
+module_param(registerMemSize, ulong, 0644);
+#endif
+
+static int irqLine2D = -1;
+module_param(irqLine2D, int, 0644);
+
+static ulong registerMemBase2D = 0x00000000;
+module_param(registerMemBase2D, ulong, 0644);
+
+static ulong registerMemSize2D = 2 << 10;
+module_param(registerMemSize2D, ulong, 0644);
+
+static int irqLineVG = -1;
+module_param(irqLineVG, int, 0644);
+
+static ulong registerMemBaseVG = 0x00000000;
+module_param(registerMemBaseVG, ulong, 0644);
+
+static ulong registerMemSizeVG = 2 << 10;
+module_param(registerMemSizeVG, ulong, 0644);
+
+#if gcdENABLE_DEC_COMPRESSION
+static ulong registerMemBaseDEC300 = 0x00000000;
+module_param(registerMemBaseDEC300, ulong, 0644);
+
+static ulong registerMemSizeDEC300 = 2 << 10;
+module_param(registerMemSizeDEC300, ulong, 0644);
+#endif
+
+#ifndef gcdDEFAULT_CONTIGUOUS_SIZE
+#define gcdDEFAULT_CONTIGUOUS_SIZE (4 << 20)
+#endif
+static ulong contiguousSize = gcdDEFAULT_CONTIGUOUS_SIZE;
+module_param(contiguousSize, ulong, 0644);
+
+static ulong contiguousBase = 0;
+module_param(contiguousBase, ulong, 0644);
+
+static ulong bankSize = 0;
+module_param(bankSize, ulong, 0644);
+
+static int fastClear = -1;
+module_param(fastClear, int, 0644);
+
+static int compression = -1;
+module_param(compression, int, 0644);
+
+static int powerManagement = 1;
+module_param(powerManagement, int, 0644);
+
+static int gpuProfiler = 0;
+module_param(gpuProfiler, int, 0644);
+
+static int signal = 48;
+module_param(signal, int, 0644);
+
+static ulong baseAddress = 0;
+module_param(baseAddress, ulong, 0644);
+
+static ulong physSize = 0;
+module_param(physSize, ulong, 0644);
+
+static uint logFileSize = 0;
+module_param(logFileSize,uint, 0644);
+
+static uint recovery = 1;
+module_param(recovery, uint, 0644);
+MODULE_PARM_DESC(recovery, "Recover GPU from stuck (1: Enable, 0: Disable)");
+
+/* Middle needs about 40KB buffer, Maximal may need more than 200KB buffer. */
+static uint stuckDump = 0;
+module_param(stuckDump, uint, 0644);
+MODULE_PARM_DESC(stuckDump, "Level of stuck dump content (1: Minimal, 2: Middle, 3: Maximal)");
+
+static int showArgs = 0;
+module_param(showArgs, int, 0644);
+
+static int mmu = 1;
+module_param(mmu, int, 0644);
+
+static int gpu3DMinClock = 1;
+
+static int contiguousRequested = 0;
+
+
+static gctBOOL registerMemMapped = gcvFALSE;
+static gctPOINTER registerMemAddress = gcvNULL;
+
+static int drv_open(
+    struct inode* inode,
+    struct file* filp
+    );
+
+static int drv_release(
+    struct inode* inode,
+    struct file* filp
+    );
+
+static long drv_ioctl(
+    struct file* filp,
+    unsigned int ioctlCode,
+    unsigned long arg
+    );
+
+static int drv_mmap(
+    struct file* filp,
+    struct vm_area_struct* vma
+    );
+
+static struct file_operations driver_fops =
+{
+    .owner      = THIS_MODULE,
+    .open       = drv_open,
+    .release    = drv_release,
+    .unlocked_ioctl = drv_ioctl,
+#ifdef HAVE_COMPAT_IOCTL
+    .compat_ioctl = drv_ioctl,
+#endif
+    .mmap       = drv_mmap,
+};
+
+void
+_UpdateModuleParam(
+    gcsMODULE_PARAMETERS *Param
+    )
+{
+#if gcdMULTI_GPU || gcdMULTI_GPU_AFFINITY
+#else
+    irqLine           = Param->irqLine ;
+    registerMemBase   = Param->registerMemBase;
+    registerMemSize   = Param->registerMemSize;
+#endif
+    irqLine2D         = Param->irqLine2D      ;
+    registerMemBase2D = Param->registerMemBase2D;
+    registerMemSize2D = Param->registerMemSize2D;
+    contiguousSize    = Param->contiguousSize;
+    contiguousBase    = Param->contiguousBase;
+    bankSize          = Param->bankSize;
+    fastClear         = Param->fastClear;
+    compression       = Param->compression;
+    powerManagement   = Param->powerManagement;
+    gpuProfiler       = Param->gpuProfiler;
+    signal            = Param->signal;
+    baseAddress       = Param->baseAddress;
+    physSize          = Param->physSize;
+    logFileSize       = Param->logFileSize;
+    recovery          = Param->recovery;
+    stuckDump         = Param->stuckDump;
+    showArgs          = Param->showArgs;
+    contiguousRequested = Param->contiguousRequested;
+    gpu3DMinClock     = Param->gpu3DMinClock;
+    registerMemMapped    = Param->registerMemMapped;
+    registerMemAddress    = Param->registerMemAddress;
+}
+
+void
+gckOS_DumpParam(
+    void
+    )
+{
+    printk("Galcore options:\n");
+#if gcdMULTI_GPU || gcdMULTI_GPU_AFFINITY
+    printk("  irqLine3D0         = %d\n",      irqLine3D0);
+    printk("  registerMemBase3D0 = 0x%08lX\n", registerMemBase3D0);
+    printk("  registerMemSize3D0 = 0x%08lX\n", registerMemSize3D0);
+
+    if (irqLine3D1 != -1)
+    {
+        printk("  irqLine3D1         = %d\n",      irqLine3D1);
+        printk("  registerMemBase3D1 = 0x%08lX\n", registerMemBase3D1);
+        printk("  registerMemSize3D1 = 0x%08lX\n", registerMemSize3D1);
+    }
+#else
+    printk("  irqLine           = %d\n",      irqLine);
+    printk("  registerMemBase   = 0x%08lX\n", registerMemBase);
+    printk("  registerMemSize   = 0x%08lX\n", registerMemSize);
+#endif
+
+    if (irqLine2D != -1)
+    {
+        printk("  irqLine2D         = %d\n",      irqLine2D);
+        printk("  registerMemBase2D = 0x%08lX\n", registerMemBase2D);
+        printk("  registerMemSize2D = 0x%08lX\n", registerMemSize2D);
+    }
+
+    if (irqLineVG != -1)
+    {
+        printk("  irqLineVG         = %d\n",      irqLineVG);
+        printk("  registerMemBaseVG = 0x%08lX\n", registerMemBaseVG);
+        printk("  registerMemSizeVG = 0x%08lX\n", registerMemSizeVG);
+    }
+
+#if gcdENABLE_DEC_COMPRESSION
+    printk("  registerMemBaseDEC300 = 0x%08lX\n", registerMemBaseDEC300);
+    printk("  registerMemSizeDEC300 = 0x%08lX\n", registerMemSizeDEC300);
+#endif
+
+    printk("  contiguousSize    = %ld\n",     contiguousSize);
+    printk("  contiguousBase    = 0x%08lX\n", contiguousBase);
+    printk("  bankSize          = 0x%08lX\n", bankSize);
+    printk("  fastClear         = %d\n",      fastClear);
+    printk("  compression       = %d\n",      compression);
+    printk("  signal            = %d\n",      signal);
+    printk("  powerManagement   = %d\n",      powerManagement);
+    printk("  baseAddress       = 0x%08lX\n", baseAddress);
+    printk("  physSize          = 0x%08lX\n", physSize);
+    printk("  logFileSize       = %d KB \n",  logFileSize);
+    printk("  recovery          = %d\n",      recovery);
+    printk("  stuckDump         = %d\n",      stuckDump);
+    printk("  gpuProfiler       = %d\n",      gpuProfiler);
+}
+
+int drv_open(
+    struct inode* inode,
+    struct file* filp
+    )
+{
+    gceSTATUS status;
+    gctBOOL attached = gcvFALSE;
+    gcsHAL_PRIVATE_DATA_PTR data = gcvNULL;
+    gctINT i;
+
+    gcmkHEADER_ARG("inode=0x%08X filp=0x%08X", inode, filp);
+
+    if (filp == gcvNULL)
+    {
+        gcmkTRACE_ZONE(
+            gcvLEVEL_ERROR, gcvZONE_DRIVER,
+            "%s(%d): filp is NULL\n",
+            __FUNCTION__, __LINE__
+            );
+
+        gcmkONERROR(gcvSTATUS_INVALID_ARGUMENT);
+    }
+
+    data = kmalloc(sizeof(gcsHAL_PRIVATE_DATA), GFP_KERNEL | __GFP_NOWARN);
+
+    if (data == gcvNULL)
+    {
+        gcmkTRACE_ZONE(
+            gcvLEVEL_ERROR, gcvZONE_DRIVER,
+            "%s(%d): private_data is NULL\n",
+            __FUNCTION__, __LINE__
+            );
+
+        gcmkONERROR(gcvSTATUS_OUT_OF_MEMORY);
+    }
+
+    data->device             = galDevice;
+    data->mappedMemory       = gcvNULL;
+    data->contiguousLogical  = gcvNULL;
+    gcmkONERROR(gckOS_GetProcessID(&data->pidOpen));
+
+    /* Attached the process. */
+    for (i = 0; i < gcdMAX_GPU_COUNT; i++)
+    {
+        if (galDevice->kernels[i] != gcvNULL)
+        {
+            gcmkONERROR(gckKERNEL_AttachProcess(galDevice->kernels[i], gcvTRUE));
+        }
+    }
+    attached = gcvTRUE;
+
+    if (!galDevice->contiguousMapped)
+    {
+        if (galDevice->contiguousPhysical != gcvNULL)
+        {
+            gcmkONERROR(gckOS_MapMemory(
+                galDevice->os,
+                galDevice->contiguousPhysical,
+                galDevice->contiguousSize,
+                &data->contiguousLogical
+                ));
+        }
+    }
+
+    filp->private_data = data;
+
+    /* Success. */
+    gcmkFOOTER_NO();
+    return 0;
+
+OnError:
+    if (data != gcvNULL)
+    {
+        if (data->contiguousLogical != gcvNULL)
+        {
+            gcmkVERIFY_OK(gckOS_UnmapMemory(
+                galDevice->os,
+                galDevice->contiguousPhysical,
+                galDevice->contiguousSize,
+                data->contiguousLogical
+                ));
+        }
+
+        kfree(data);
+    }
+
+    if (attached)
+    {
+        for (i = 0; i < gcdMAX_GPU_COUNT; i++)
+        {
+            if (galDevice->kernels[i] != gcvNULL)
+            {
+                gcmkVERIFY_OK(gckKERNEL_AttachProcess(galDevice->kernels[i], gcvFALSE));
+            }
+        }
+    }
+
+    gcmkFOOTER();
+    return -ENOTTY;
+}
+
+int drv_release(
+    struct inode* inode,
+    struct file* filp
+    )
+{
+    gceSTATUS status;
+    gcsHAL_PRIVATE_DATA_PTR data;
+    gckGALDEVICE device;
+    gctINT i;
+
+    gcmkHEADER_ARG("inode=0x%08X filp=0x%08X", inode, filp);
+
+    if (filp == gcvNULL)
+    {
+        gcmkTRACE_ZONE(
+            gcvLEVEL_ERROR, gcvZONE_DRIVER,
+            "%s(%d): filp is NULL\n",
+            __FUNCTION__, __LINE__
+            );
+
+        gcmkONERROR(gcvSTATUS_INVALID_ARGUMENT);
+    }
+
+    data = filp->private_data;
+
+    if (data == gcvNULL)
+    {
+        gcmkTRACE_ZONE(
+            gcvLEVEL_ERROR, gcvZONE_DRIVER,
+            "%s(%d): private_data is NULL\n",
+            __FUNCTION__, __LINE__
+            );
+
+        gcmkONERROR(gcvSTATUS_INVALID_ARGUMENT);
+    }
+
+    device = data->device;
+
+    if (device == gcvNULL)
+    {
+        gcmkTRACE_ZONE(
+            gcvLEVEL_ERROR, gcvZONE_DRIVER,
+            "%s(%d): device is NULL\n",
+            __FUNCTION__, __LINE__
+            );
+
+        gcmkONERROR(gcvSTATUS_INVALID_ARGUMENT);
+    }
+
+    if (!device->contiguousMapped)
+    {
+        if (data->contiguousLogical != gcvNULL)
+        {
+            gcmkONERROR(gckOS_UnmapMemoryEx(
+                galDevice->os,
+                galDevice->contiguousPhysical,
+                galDevice->contiguousSize,
+                data->contiguousLogical,
+                data->pidOpen
+                ));
+
+            data->contiguousLogical = gcvNULL;
+        }
+    }
+
+    /* A process gets detached. */
+    for (i = 0; i < gcdMAX_GPU_COUNT; i++)
+    {
+        if (galDevice->kernels[i] != gcvNULL)
+        {
+            gcmkONERROR(gckKERNEL_AttachProcessEx(galDevice->kernels[i], gcvFALSE, data->pidOpen));
+        }
+    }
+
+    kfree(data);
+    filp->private_data = NULL;
+
+    /* Success. */
+    gcmkFOOTER_NO();
+    return 0;
+
+OnError:
+    gcmkFOOTER();
+    return -ENOTTY;
+}
+
+long drv_ioctl(
+    struct file* filp,
+    unsigned int ioctlCode,
+    unsigned long arg
+    )
+{
+    gceSTATUS status;
+    gcsHAL_INTERFACE iface;
+    gctUINT32 copyLen;
+    DRIVER_ARGS drvArgs;
+    gckGALDEVICE device;
+    gcsHAL_PRIVATE_DATA_PTR data;
+    gctINT32 i, count;
+    gckVIDMEM_NODE nodeObject;
+
+    gcmkHEADER_ARG(
+        "filp=0x%08X ioctlCode=0x%08X arg=0x%08X",
+        filp, ioctlCode, arg
+        );
+
+    if (filp == gcvNULL)
+    {
+        gcmkTRACE_ZONE(
+            gcvLEVEL_ERROR, gcvZONE_DRIVER,
+            "%s(%d): filp is NULL\n",
+            __FUNCTION__, __LINE__
+            );
+
+        gcmkONERROR(gcvSTATUS_INVALID_ARGUMENT);
+    }
+
+    data = filp->private_data;
+
+    if (data == gcvNULL)
+    {
+        gcmkTRACE_ZONE(
+            gcvLEVEL_ERROR, gcvZONE_DRIVER,
+            "%s(%d): private_data is NULL\n",
+            __FUNCTION__, __LINE__
+            );
+
+        gcmkONERROR(gcvSTATUS_INVALID_ARGUMENT);
+    }
+
+    device = data->device;
+
+    if (device == gcvNULL)
+    {
+        gcmkTRACE_ZONE(
+            gcvLEVEL_ERROR, gcvZONE_DRIVER,
+            "%s(%d): device is NULL\n",
+            __FUNCTION__, __LINE__
+            );
+
+        gcmkONERROR(gcvSTATUS_INVALID_ARGUMENT);
+    }
+
+    if ((ioctlCode != IOCTL_GCHAL_INTERFACE)
+    &&  (ioctlCode != IOCTL_GCHAL_KERNEL_INTERFACE)
+    )
+    {
+        gcmkTRACE_ZONE(
+            gcvLEVEL_ERROR, gcvZONE_DRIVER,
+            "%s(%d): unknown command %d\n",
+            __FUNCTION__, __LINE__,
+            ioctlCode
+            );
+
+        gcmkONERROR(gcvSTATUS_INVALID_ARGUMENT);
+    }
+
+    /* Get the drvArgs. */
+    copyLen = copy_from_user(
+        &drvArgs, (void *) arg, sizeof(DRIVER_ARGS)
+        );
+
+    if (copyLen != 0)
+    {
+        gcmkTRACE_ZONE(
+            gcvLEVEL_ERROR, gcvZONE_DRIVER,
+            "%s(%d): error copying of the input arguments.\n",
+            __FUNCTION__, __LINE__
+            );
+
+        gcmkONERROR(gcvSTATUS_INVALID_ARGUMENT);
+    }
+
+    /* Now bring in the gcsHAL_INTERFACE structure. */
+    if ((drvArgs.InputBufferSize  != sizeof(gcsHAL_INTERFACE))
+    ||  (drvArgs.OutputBufferSize != sizeof(gcsHAL_INTERFACE))
+    )
+    {
+        gcmkTRACE_ZONE(
+            gcvLEVEL_ERROR, gcvZONE_DRIVER,
+            "%s(%d): input or/and output structures are invalid.\n",
+            __FUNCTION__, __LINE__
+            );
+
+        gcmkONERROR(gcvSTATUS_INVALID_ARGUMENT);
+    }
+
+    copyLen = copy_from_user(
+        &iface, gcmUINT64_TO_PTR(drvArgs.InputBuffer), sizeof(gcsHAL_INTERFACE)
+        );
+
+    if (copyLen != 0)
+    {
+        gcmkTRACE_ZONE(
+            gcvLEVEL_ERROR, gcvZONE_DRIVER,
+            "%s(%d): error copying of input HAL interface.\n",
+            __FUNCTION__, __LINE__
+            );
+
+        gcmkONERROR(gcvSTATUS_INVALID_ARGUMENT);
+    }
+
+    if (iface.command == gcvHAL_CHIP_INFO)
+    {
+        count = 0;
+        for (i = 0; i < gcdMAX_GPU_COUNT; i++)
+        {
+            if (device->kernels[i] != gcvNULL)
+            {
+                {
+                    gcmkVERIFY_OK(gckHARDWARE_GetType(device->kernels[i]->hardware,
+                                                      &iface.u.ChipInfo.types[count]));
+                }
+                count++;
+            }
+        }
+
+        iface.u.ChipInfo.count = count;
+        iface.status = status = gcvSTATUS_OK;
+    }
+    else
+    {
+        if (iface.hardwareType > 7)
+        {
+            gcmkTRACE_ZONE(
+                gcvLEVEL_ERROR, gcvZONE_DRIVER,
+                "%s(%d): unknown hardwareType %d\n",
+                __FUNCTION__, __LINE__,
+                iface.hardwareType
+                );
+
+            gcmkONERROR(gcvSTATUS_INVALID_ARGUMENT);
+        }
+
+        {
+            status = gckKERNEL_Dispatch(device->kernels[device->coreMapping[iface.hardwareType]],
+                                        (ioctlCode == IOCTL_GCHAL_INTERFACE),
+                                        &iface);
+        }
+    }
+
+    /* Redo system call after pending signal is handled. */
+    if (status == gcvSTATUS_INTERRUPTED)
+    {
+        gcmkFOOTER();
+        return -ERESTARTSYS;
+    }
+
+    if (gcmIS_SUCCESS(status) && (iface.command == gcvHAL_LOCK_VIDEO_MEMORY))
+    {
+        gcuVIDMEM_NODE_PTR node;
+        gctUINT32 processID;
+
+        gckOS_GetProcessID(&processID);
+
+        gcmkONERROR(gckVIDMEM_HANDLE_Lookup(device->kernels[device->coreMapping[iface.hardwareType]],
+                                processID,
+                                (gctUINT32)iface.u.LockVideoMemory.node,
+                                &nodeObject));
+        node = nodeObject->node;
+
+        /* Special case for mapped memory. */
+        if ((data->mappedMemory != gcvNULL)
+        &&  (node->VidMem.memory->object.type == gcvOBJ_VIDMEM)
+        )
+        {
+            /* Compute offset into mapped memory. */
+            gctUINT32 offset
+                = (gctUINT8 *) gcmUINT64_TO_PTR(iface.u.LockVideoMemory.memory)
+                - (gctUINT8 *) device->contiguousBase;
+
+            /* Compute offset into user-mapped region. */
+            iface.u.LockVideoMemory.memory =
+                gcmPTR_TO_UINT64((gctUINT8 *) data->mappedMemory + offset);
+        }
+    }
+
+    /* Copy data back to the user. */
+    copyLen = copy_to_user(
+        gcmUINT64_TO_PTR(drvArgs.OutputBuffer), &iface, sizeof(gcsHAL_INTERFACE)
+        );
+
+    if (copyLen != 0)
+    {
+        gcmkTRACE_ZONE(
+            gcvLEVEL_ERROR, gcvZONE_DRIVER,
+            "%s(%d): error copying of output HAL interface.\n",
+            __FUNCTION__, __LINE__
+            );
+
+        gcmkONERROR(gcvSTATUS_INVALID_ARGUMENT);
+    }
+
+    /* Success. */
+    gcmkFOOTER_NO();
+    return 0;
+
+OnError:
+    gcmkFOOTER();
+    return -ENOTTY;
+}
+
+static int drv_mmap(
+    struct file* filp,
+    struct vm_area_struct* vma
+    )
+{
+    gceSTATUS status = gcvSTATUS_OK;
+    gcsHAL_PRIVATE_DATA_PTR data;
+    gckGALDEVICE device;
+
+    gcmkHEADER_ARG("filp=0x%08X vma=0x%08X", filp, vma);
+
+    if (filp == gcvNULL)
+    {
+        gcmkTRACE_ZONE(
+            gcvLEVEL_ERROR, gcvZONE_DRIVER,
+            "%s(%d): filp is NULL\n",
+            __FUNCTION__, __LINE__
+            );
+
+        gcmkONERROR(gcvSTATUS_INVALID_ARGUMENT);
+    }
+
+    data = filp->private_data;
+
+    if (data == gcvNULL)
+    {
+        gcmkTRACE_ZONE(
+            gcvLEVEL_ERROR, gcvZONE_DRIVER,
+            "%s(%d): private_data is NULL\n",
+            __FUNCTION__, __LINE__
+            );
+
+        gcmkONERROR(gcvSTATUS_INVALID_ARGUMENT);
+    }
+
+    device = data->device;
+
+    if (device == gcvNULL)
+    {
+        gcmkTRACE_ZONE(
+            gcvLEVEL_ERROR, gcvZONE_DRIVER,
+            "%s(%d): device is NULL\n",
+            __FUNCTION__, __LINE__
+            );
+
+        gcmkONERROR(gcvSTATUS_INVALID_ARGUMENT);
+    }
+
+#if !gcdPAGED_MEMORY_CACHEABLE
+    vma->vm_page_prot = pgprot_writecombine(vma->vm_page_prot);
+    vma->vm_flags    |= gcdVM_FLAGS;
+#endif
+    vma->vm_pgoff     = 0;
+
+    if (device->contiguousMapped)
+    {
+        unsigned long size = vma->vm_end - vma->vm_start;
+        int ret = 0;
+
+        if (size > device->contiguousSize)
+        {
+            gcmkTRACE_ZONE(
+                gcvLEVEL_ERROR, gcvZONE_DRIVER,
+                "%s(%d): Invalid mapping size.\n",
+                __FUNCTION__, __LINE__
+                );
+
+            gcmkONERROR(gcvSTATUS_INVALID_ARGUMENT);
+        }
+
+        ret = io_remap_pfn_range(
+            vma,
+            vma->vm_start,
+            device->requestedContiguousBase >> PAGE_SHIFT,
+            size,
+            vma->vm_page_prot
+            );
+
+        if (ret != 0)
+        {
+            gcmkTRACE_ZONE(
+                gcvLEVEL_ERROR, gcvZONE_DRIVER,
+                "%s(%d): io_remap_pfn_range failed %d\n",
+                __FUNCTION__, __LINE__,
+                ret
+                );
+
+            data->mappedMemory = gcvNULL;
+
+            gcmkONERROR(gcvSTATUS_OUT_OF_RESOURCES);
+        }
+
+        data->mappedMemory = (gctPOINTER) vma->vm_start;
+
+        /* Success. */
+        gcmkFOOTER_NO();
+        return 0;
+    }
+
+OnError:
+    gcmkFOOTER();
+    return -ENOTTY;
+}
+
+
+#if !USE_PLATFORM_DRIVER
+static int __init drv_init(void)
+#else
+static int drv_init(void)
+#endif
+{
+    int ret;
+    int result = -EINVAL;
+    gceSTATUS status;
+    gckGALDEVICE device = gcvNULL;
+    struct class* device_class = gcvNULL;
+
+    gcsDEVICE_CONSTRUCT_ARGS args = {
+        .recovery           = recovery,
+        .stuckDump          = stuckDump,
+        .gpu3DMinClock      = gpu3DMinClock,
+        .contiguousRequested = contiguousRequested,
+        .platform           = &platform,
+        .mmu                = mmu,
+        .registerMemMapped = registerMemMapped,
+        .registerMemAddress = registerMemAddress,
+#if gcdENABLE_DEC_COMPRESSION
+        .registerMemBaseDEC300 = registerMemBaseDEC300,
+        .registerMemSizeDEC300 = registerMemSizeDEC300,
+#endif
+    };
+
+    gcmkHEADER();
+
+    printk(KERN_INFO "Galcore version %d.%d.%d.%d\n",
+        gcvVERSION_MAJOR, gcvVERSION_MINOR, gcvVERSION_PATCH, gcvVERSION_BUILD);
+
+#if !VIVANTE_PROFILER_PM
+    /* when enable gpu profiler, we need to turn off gpu powerMangement */
+    if (gpuProfiler)
+    {
+        powerManagement = 0;
+    }
+#endif
+
+    if (showArgs)
+    {
+        gckOS_DumpParam();
+    }
+
+    if (logFileSize != 0)
+    {
+        gckDEBUGFS_Initialize();
+    }
+
+    /* Create the GAL device. */
+    status = gckGALDEVICE_Construct(
+#if gcdMULTI_GPU || gcdMULTI_GPU_AFFINITY
+        irqLine3D0,
+        registerMemBase3D0, registerMemSize3D0,
+        irqLine3D1,
+        registerMemBase3D1, registerMemSize3D1,
+#else
+        irqLine,
+        registerMemBase, registerMemSize,
+#endif
+        irqLine2D,
+        registerMemBase2D, registerMemSize2D,
+        irqLineVG,
+        registerMemBaseVG, registerMemSizeVG,
+        contiguousBase, contiguousSize,
+        bankSize, fastClear, compression, baseAddress, physSize, signal,
+        logFileSize,
+        powerManagement,
+        gpuProfiler,
+        &args,
+        &device
+    );
+
+    if (gcmIS_ERROR(status))
+    {
+        gcmkTRACE_ZONE(gcvLEVEL_ERROR, gcvZONE_DRIVER,
+                       "%s(%d): Failed to create the GAL device: status=%d\n",
+                       __FUNCTION__, __LINE__, status);
+
+        goto OnError;
+    }
+
+    /* Start the GAL device. */
+    gcmkONERROR(gckGALDEVICE_Start(device));
+
+    if ((physSize != 0)
+       && (device->kernels[gcvCORE_MAJOR] != gcvNULL)
+       && (device->kernels[gcvCORE_MAJOR]->hardware->mmuVersion != 0))
+    {
+        /* Reset the base address */
+        device->baseAddress = 0;
+    }
+
+    /* Register the character device. */
+    ret = register_chrdev(major, DEVICE_NAME, &driver_fops);
+
+    if (ret < 0)
+    {
+        gcmkTRACE_ZONE(
+            gcvLEVEL_ERROR, gcvZONE_DRIVER,
+            "%s(%d): Could not allocate major number for mmap.\n",
+            __FUNCTION__, __LINE__
+            );
+
+        gcmkONERROR(gcvSTATUS_OUT_OF_MEMORY);
+    }
+
+    if (major == 0)
+    {
+        major = ret;
+    }
+
+    /* Create the device class. */
+    device_class = class_create(THIS_MODULE, CLASS_NAME);
+
+    if (IS_ERR(device_class))
+    {
+        gcmkTRACE_ZONE(
+            gcvLEVEL_ERROR, gcvZONE_DRIVER,
+            "%s(%d): Failed to create the class.\n",
+            __FUNCTION__, __LINE__
+            );
+
+        gcmkONERROR(gcvSTATUS_OUT_OF_RESOURCES);
+    }
+
+#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,27)
+    device_create(device_class, NULL, MKDEV(major, 0), NULL, DEVICE_NAME);
+#else
+    device_create(device_class, NULL, MKDEV(major, 0), DEVICE_NAME);
+#endif
+
+    galDevice = device;
+    gpuClass  = device_class;
+
+#if gcdMULTI_GPU || gcdMULTI_GPU_AFFINITY
+    gcmkTRACE_ZONE(
+        gcvLEVEL_INFO, gcvZONE_DRIVER,
+        "%s(%d): irqLine3D0=%d, contiguousSize=%lu, memBase3D0=0x%lX\n",
+        __FUNCTION__, __LINE__,
+        irqLine3D0, contiguousSize, registerMemBase3D0
+        );
+#else
+    gcmkTRACE_ZONE(
+        gcvLEVEL_INFO, gcvZONE_DRIVER,
+        "%s(%d): irqLine=%d, contiguousSize=%lu, memBase=0x%lX\n",
+        __FUNCTION__, __LINE__,
+        irqLine, contiguousSize, registerMemBase
+        );
+#endif
+
+    /* Success. */
+    gcmkFOOTER_NO();
+    return 0;
+
+OnError:
+    /* Roll back. */
+    if (device_class != gcvNULL)
+    {
+        device_destroy(device_class, MKDEV(major, 0));
+        class_destroy(device_class);
+    }
+
+    if (device != gcvNULL)
+    {
+        gcmkVERIFY_OK(gckGALDEVICE_Stop(device));
+        gcmkVERIFY_OK(gckGALDEVICE_Destroy(device));
+    }
+
+    gcmkFOOTER();
+    return result;
+}
+
+#if !USE_PLATFORM_DRIVER
+static void __exit drv_exit(void)
+#else
+static void drv_exit(void)
+#endif
+{
+    gcmkHEADER();
+
+    gcmkASSERT(gpuClass != gcvNULL);
+    device_destroy(gpuClass, MKDEV(major, 0));
+    class_destroy(gpuClass);
+
+    unregister_chrdev(major, DEVICE_NAME);
+
+    gcmkVERIFY_OK(gckGALDEVICE_Stop(galDevice));
+    gcmkVERIFY_OK(gckGALDEVICE_Destroy(galDevice));
+
+    if(gckDEBUGFS_IsEnabled())
+    {
+        gckDEBUGFS_Terminate();
+    }
+
+    gcmkFOOTER_NO();
+}
+
+#if !USE_PLATFORM_DRIVER
+    module_init(drv_init);
+    module_exit(drv_exit);
+#else
+
+#if LINUX_VERSION_CODE >= KERNEL_VERSION(3, 8, 0)
+static int gpu_probe(struct platform_device *pdev)
+#else
+static int __devinit gpu_probe(struct platform_device *pdev)
+#endif
+{
+    int ret = -ENODEV;
+    gcsMODULE_PARAMETERS moduleParam = {
+#if gcdMULTI_GPU || gcdMULTI_GPU_AFFINITY
+#else
+        .irqLine            = irqLine,
+        .registerMemBase    = registerMemBase,
+        .registerMemSize    = registerMemSize,
+#endif
+        .irqLine2D          = irqLine2D,
+        .registerMemBase2D  = registerMemBase2D,
+        .registerMemSize2D  = registerMemSize2D,
+        .irqLineVG          = irqLineVG,
+        .registerMemBaseVG  = registerMemBaseVG,
+        .registerMemSizeVG  = registerMemSizeVG,
+        .contiguousSize     = contiguousSize,
+        .contiguousBase     = contiguousBase,
+        .bankSize           = bankSize,
+        .fastClear          = fastClear,
+        .compression        = compression,
+        .powerManagement    = powerManagement,
+        .gpuProfiler        = gpuProfiler,
+        .signal             = signal,
+        .baseAddress        = baseAddress,
+        .physSize           = physSize,
+        .logFileSize        = logFileSize,
+        .recovery           = recovery,
+        .stuckDump          = stuckDump,
+        .showArgs           = showArgs,
+        .gpu3DMinClock      = gpu3DMinClock,
+        .registerMemMapped    = registerMemMapped,
+    };
+
+    gcmkHEADER();
+
+    platform.device = pdev;
+
+    if (platform.ops->getPower)
+    {
+        if (gcmIS_ERROR(platform.ops->getPower(&platform)))
+        {
+            gcmkFOOTER_NO();
+            return ret;
+        }
+    }
+
+    if (platform.ops->adjustParam)
+    {
+        /* Override default module param. */
+        platform.ops->adjustParam(&platform, &moduleParam);
+
+        /* Update module param because drv_init() uses them directly. */
+        _UpdateModuleParam(&moduleParam);
+    }
+
+    ret = drv_init();
+
+    if (!ret)
+    {
+        platform_set_drvdata(pdev, galDevice);
+
+        gcmkFOOTER_NO();
+        return ret;
+    }
+
+    gcmkFOOTER_ARG(KERN_INFO "Failed to register gpu driver: %d\n", ret);
+    return ret;
+}
+
+#if LINUX_VERSION_CODE >= KERNEL_VERSION(3, 8, 0)
+static int gpu_remove(struct platform_device *pdev)
+#else
+static int __devexit gpu_remove(struct platform_device *pdev)
+#endif
+{
+    gcmkHEADER();
+
+    drv_exit();
+
+    if (platform.ops->putPower)
+    {
+        platform.ops->putPower(&platform);
+    }
+
+    gcmkFOOTER_NO();
+    return 0;
+}
+
+static int gpu_suspend(struct platform_device *dev, pm_message_t state)
+{
+    gceSTATUS status;
+    gckGALDEVICE device;
+    gctINT i;
+
+    device = platform_get_drvdata(dev);
+
+    if (!device)
+    {
+        return -1;
+    }
+
+    for (i = 0; i < gcdMAX_GPU_COUNT; i++)
+    {
+        if (device->kernels[i] != gcvNULL)
+        {
+            /* Store states. */
+            {
+                status = gckHARDWARE_QueryPowerManagementState(device->kernels[i]->hardware, &device->statesStored[i]);
+            }
+
+            if (gcmIS_ERROR(status))
+            {
+                return -1;
+            }
+
+            {
+                status = gckHARDWARE_SetPowerManagementState(device->kernels[i]->hardware, gcvPOWER_OFF);
+            }
+
+            if (gcmIS_ERROR(status))
+            {
+                return -1;
+            }
+
+        }
+    }
+
+    return 0;
+}
+
+static int gpu_resume(struct platform_device *dev)
+{
+    gceSTATUS status;
+    gckGALDEVICE device;
+    gctINT i;
+    gceCHIPPOWERSTATE   statesStored;
+
+    device = platform_get_drvdata(dev);
+
+    if (!device)
+    {
+        return -1;
+    }
+
+    for (i = 0; i < gcdMAX_GPU_COUNT; i++)
+    {
+        if (device->kernels[i] != gcvNULL)
+        {
+            {
+                status = gckHARDWARE_SetPowerManagementState(device->kernels[i]->hardware, gcvPOWER_ON);
+            }
+
+            if (gcmIS_ERROR(status))
+            {
+                return -1;
+            }
+
+            /* Convert global state to crossponding internal state. */
+            switch(device->statesStored[i])
+            {
+            case gcvPOWER_OFF:
+                statesStored = gcvPOWER_OFF_BROADCAST;
+                break;
+            case gcvPOWER_IDLE:
+                statesStored = gcvPOWER_IDLE_BROADCAST;
+                break;
+            case gcvPOWER_SUSPEND:
+                statesStored = gcvPOWER_SUSPEND_BROADCAST;
+                break;
+            case gcvPOWER_ON:
+                statesStored = gcvPOWER_ON_AUTO;
+                break;
+            default:
+                statesStored = device->statesStored[i];
+                break;
+            }
+
+            /* Restore states. */
+            {
+                status = gckHARDWARE_SetPowerManagementState(device->kernels[i]->hardware, statesStored);
+            }
+
+            if (gcmIS_ERROR(status))
+            {
+                return -1;
+            }
+        }
+    }
+
+    return 0;
+}
+
+#if defined(CONFIG_PM) && LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 30)
+#ifdef CONFIG_PM_SLEEP
+static int gpu_system_suspend(struct device *dev)
+{
+    pm_message_t state={0};
+    return gpu_suspend(to_platform_device(dev), state);
+}
+
+static int gpu_system_resume(struct device *dev)
+{
+    return gpu_resume(to_platform_device(dev));
+}
+#endif
+
+static const struct dev_pm_ops gpu_pm_ops = {
+    SET_SYSTEM_SLEEP_PM_OPS(gpu_system_suspend, gpu_system_resume)
+};
+#endif
+
+static struct platform_driver gpu_driver = {
+    .probe      = gpu_probe,
+#if LINUX_VERSION_CODE >= KERNEL_VERSION(3, 8, 0)
+    .remove     = gpu_remove,
+#else
+    .remove     = __devexit_p(gpu_remove),
+#endif
+
+    .suspend    = gpu_suspend,
+    .resume     = gpu_resume,
+
+    .driver     = {
+        .owner = THIS_MODULE,
+        .name   = DEVICE_NAME,
+#if defined(CONFIG_PM) && LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 30)
+        .pm     = &gpu_pm_ops,
+#endif
+    }
+};
+
+static int __init gpu_init(void)
+{
+    int ret = 0;
+
+    memset(&platform, 0, sizeof(gcsPLATFORM));
+
+    gckPLATFORM_QueryOperations(&platform.ops);
+
+    if (platform.ops == gcvNULL)
+    {
+        printk(KERN_ERR "galcore: No platform specific operations.\n");
+        ret = -ENODEV;
+        goto out;
+    }
+
+    if (platform.ops->allocPriv)
+    {
+        /* Allocate platform private data. */
+        if (gcmIS_ERROR(platform.ops->allocPriv(&platform)))
+        {
+            ret = -ENOMEM;
+            goto out;
+        }
+    }
+
+    if (platform.ops->needAddDevice
+     && platform.ops->needAddDevice(&platform))
+    {
+        /* Allocate device */
+        platform.device = platform_device_alloc(DEVICE_NAME, -1);
+        if (!platform.device)
+        {
+            printk(KERN_ERR "galcore: platform_device_alloc failed.\n");
+            ret = -ENOMEM;
+            goto out;
+        }
+
+        /* Add device */
+        ret = platform_device_add(platform.device);
+        if (ret)
+        {
+            printk(KERN_ERR "galcore: platform_device_add failed.\n");
+            goto put_dev;
+        }
+    }
+
+    platform.driver = &gpu_driver;
+
+    if (platform.ops->adjustDriver)
+    {
+        /* Override default platform_driver struct. */
+        platform.ops->adjustDriver(&platform);
+    }
+
+    ret = platform_driver_register(&gpu_driver);
+    if (!ret)
+    {
+        goto out;
+    }
+
+    platform_device_del(platform.device);
+put_dev:
+    platform_device_put(platform.device);
+
+out:
+    return ret;
+}
+
+static void __exit gpu_exit(void)
+{
+    platform_driver_unregister(&gpu_driver);
+
+    if (platform.ops->needAddDevice
+     && platform.ops->needAddDevice(&platform))
+    {
+        platform_device_unregister(platform.device);
+    }
+
+    if (platform.priv)
+    {
+        /* Free platform private data. */
+        platform.ops->freePriv(&platform);
+    }
+}
+
+module_init(gpu_init);
+module_exit(gpu_exit);
+
+#endif
diff --git a/src/hal/os/linux/kernel/gc_hal_kernel_security_channel.c b/src/hal/os/linux/kernel/gc_hal_kernel_security_channel.c
new file mode 100755
index 0000000..9dfb755
--- /dev/null
+++ b/src/hal/os/linux/kernel/gc_hal_kernel_security_channel.c
@@ -0,0 +1,423 @@
+/****************************************************************************
+*
+*    The MIT License (MIT)
+*
+*    Copyright (c) 2014 Vivante Corporation
+*
+*    Permission is hereby granted, free of charge, to any person obtaining a
+*    copy of this software and associated documentation files (the "Software"),
+*    to deal in the Software without restriction, including without limitation
+*    the rights to use, copy, modify, merge, publish, distribute, sublicense,
+*    and/or sell copies of the Software, and to permit persons to whom the
+*    Software is furnished to do so, subject to the following conditions:
+*
+*    The above copyright notice and this permission notice shall be included in
+*    all copies or substantial portions of the Software.
+*
+*    THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+*    IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+*    FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+*    AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+*    LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+*    FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+*    DEALINGS IN THE SOFTWARE.
+*
+*****************************************************************************
+*
+*    The GPL License (GPL)
+*
+*    Copyright (C) 2014  Vivante Corporation
+*
+*    This program is free software; you can redistribute it and/or
+*    modify it under the terms of the GNU General Public License
+*    as published by the Free Software Foundation; either version 2
+*    of the License, or (at your option) any later version.
+*
+*    This program is distributed in the hope that it will be useful,
+*    but WITHOUT ANY WARRANTY; without even the implied warranty of
+*    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+*    GNU General Public License for more details.
+*
+*    You should have received a copy of the GNU General Public License
+*    along with this program; if not, write to the Free Software Foundation,
+*    Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+*
+*****************************************************************************
+*
+*    Note: This software is released under dual MIT and GPL licenses. A
+*    recipient may use this file under the terms of either the MIT license or
+*    GPL License. If you wish to use only one license not the other, you can
+*    indicate your decision by deleting one of the above license notices in your
+*    version of this file.
+*
+*****************************************************************************/
+
+
+#include "gc_hal_kernel_linux.h"
+#include <linux/slab.h>
+
+#include "tee_client_api.h"
+
+#define _GC_OBJ_ZONE gcvZONE_OS
+
+#define GPU3D_UUID   { 0xcc9f80ea, 0xa836, 0x11e3, { 0x9b, 0x07, 0x78, 0x2b, 0xcb, 0x5c, 0xf3, 0xe3 } }
+
+static const TEEC_UUID gpu3d_uuid = GPU3D_UUID;
+TEEC_Context teecContext;
+
+typedef struct _gcsSecurityChannel {
+    gckOS               os;
+    TEEC_Session        session;
+    int *               virtual;
+    TEEC_SharedMemory   inputBuffer;
+    gctUINT32           bytes;
+    gctPOINTER          mutex;
+} gcsSecurityChannel;
+
+TEEC_SharedMemory *
+gpu3d_allocate_secure_mem(
+    gckOS Os,
+    unsigned int size
+    )
+{
+    TEEC_Result result;
+    TEEC_Context *context = &teecContext;
+    TEEC_SharedMemory *shm = NULL;
+    void *handle = NULL;
+    gctPHYS_ADDR_T phyAddr;
+    gceSTATUS status;
+    gctSIZE_T bytes = size;
+
+    shm = kmalloc(sizeof(TEEC_SharedMemory), GFP_KERNEL);
+
+    if (NULL == shm)
+    {
+        return NULL;
+    }
+
+    memset(shm, 0, sizeof(TEEC_SharedMemory));
+
+    status = gckOS_AllocatePagedMemoryEx(
+                Os,
+                gcvALLOC_FLAG_SECURITY,
+                bytes,
+                gcvNULL,
+                (gctPHYS_ADDR *)&handle);
+
+    if (gcmIS_ERROR(status))
+    {
+         kfree(shm);
+         return NULL;
+    }
+
+    status = gckOS_PhysicalToPhysicalAddress(
+                Os,
+                handle,
+                &phyAddr);
+
+    if (gcmIS_ERROR(status))
+    {
+         kfree(shm);
+         return NULL;
+    }
+
+    /* record the handle into shm->user_data */
+    shm->userdata = handle;
+
+    /* [b] Bulk input buffer. */
+    shm->size = size;
+    shm->flags = TEEC_MEM_INPUT;
+
+    /* Use TEE Client API to register the underlying memory buffer. */
+    shm->phyAddr = (void *)(gctUINT32)phyAddr;
+
+    result = TEEC_RegisterSharedMemory(
+            context,
+            shm);
+
+    if (result != TEEC_SUCCESS)
+    {
+        gckOS_FreePagedMemory(Os, (gctPHYS_ADDR)handle, shm->size);
+        kfree(shm);
+        return NULL;
+    }
+
+    return shm;
+}
+
+void gpu3d_release_secure_mem(
+    gckOS Os,
+    void *shm_handle
+    )
+{
+    TEEC_SharedMemory *shm = shm_handle;
+    void * handle;
+
+    if (!shm)
+    {
+        return;
+    }
+
+    handle = shm->userdata;
+
+    TEEC_ReleaseSharedMemory(shm);
+    gckOS_FreePagedMemory(Os, (gctPHYS_ADDR)handle, shm->size);
+
+    kfree(shm);
+
+    return;
+}
+
+static TEEC_Result gpu3d_session_callback(
+    TEEC_Session*   session,
+    uint32_t    commandID,
+    TEEC_Operation* operation,
+    void*   userdata
+    )
+{
+    gcsSecurityChannel *channel = userdata;
+
+    if (channel == gcvNULL)
+    {
+        return TEEC_ERROR_BAD_PARAMETERS;
+    }
+
+    switch(commandID)
+    {
+        case gcvTA_CALLBACK_ALLOC_SECURE_MEM:
+        {
+            uint32_t size = operation->params[0].value.a;
+            TEEC_SharedMemory *shm = NULL;
+
+            shm = gpu3d_allocate_secure_mem(channel->os, size);
+            if (shm == NULL)
+            {
+                return TEEC_ERROR_OUT_OF_MEMORY;
+            }
+
+            /* use the value to save the pointer in client side */
+            operation->params[0].value.a = (uint32_t)shm;
+            operation->params[0].value.b = (uint32_t)shm->phyAddr;
+
+            break;
+        }
+        case gcvTA_CALLBACK_FREE_SECURE_MEM:
+        {
+            TEEC_SharedMemory *shm = (TEEC_SharedMemory *)operation->params[0].value.a;
+
+            gpu3d_release_secure_mem(channel->os, shm);
+            break;
+        }
+        default:
+            break;
+    }
+
+    return TEEC_SUCCESS;
+}
+
+gceSTATUS
+gckOS_OpenSecurityChannel(
+    IN gckOS Os,
+    IN gceCORE GPU,
+    OUT gctUINT32 *Channel
+    )
+{
+    gceSTATUS status;
+    TEEC_Result result;
+    static bool initialized = gcvFALSE;
+    gcsSecurityChannel *channel = gcvNULL;
+
+    TEEC_Operation operation = {0};
+
+    /* Connect to TEE. */
+    if (initialized == gcvFALSE)
+    {
+        result = TEEC_InitializeContext(NULL, &teecContext);
+
+        if (result != TEEC_SUCCESS) {
+            gcmkONERROR(gcvSTATUS_CHIP_NOT_READY);
+        }
+
+        initialized = gcvTRUE;
+    }
+
+    /* Construct channel. */
+    gcmkONERROR(
+        gckOS_Allocate(Os, gcmSIZEOF(*channel), (gctPOINTER *)&channel));
+
+    gckOS_ZeroMemory(channel, gcmSIZEOF(gcsSecurityChannel));
+
+    channel->os = Os;
+
+    gcmkONERROR(gckOS_CreateMutex(Os, &channel->mutex));
+
+    /* Allocate shared memory for passing gcTA_INTERFACE. */
+    channel->bytes = gcmSIZEOF(gcsTA_INTERFACE);
+    channel->virtual = kmalloc(channel->bytes, GFP_KERNEL | __GFP_NOWARN);
+
+    if (!channel->virtual)
+    {
+        gcmkONERROR(gcvSTATUS_OUT_OF_MEMORY);
+    }
+
+    channel->inputBuffer.size    = channel->bytes;
+    channel->inputBuffer.flags   = TEEC_MEM_INPUT | TEEC_MEM_OUTPUT;
+    channel->inputBuffer.phyAddr = (void *)virt_to_phys(channel->virtual);
+
+    result = TEEC_RegisterSharedMemory(&teecContext, &channel->inputBuffer);
+
+    if (result != TEEC_SUCCESS)
+    {
+        gcmkONERROR(gcvSTATUS_OUT_OF_RESOURCES);
+    }
+
+    operation.paramTypes = TEEC_PARAM_TYPES(
+            TEEC_VALUE_INPUT,
+            TEEC_NONE,
+            TEEC_NONE,
+            TEEC_NONE);
+
+    operation.params[0].value.a = GPU;
+
+    /* Open session with TEE application. */
+    result = TEEC_OpenSession(
+                &teecContext,
+                &channel->session,
+                &gpu3d_uuid,
+                TEEC_LOGIN_USER,
+                NULL,
+                &operation,
+                NULL);
+
+    /* Prepare callback. */
+    TEEC_RegisterCallback(&channel->session, gpu3d_session_callback, channel);
+
+    *Channel = (gctUINT32)channel;
+
+    return gcvSTATUS_OK;
+
+OnError:
+    if (channel)
+    {
+        if (channel->virtual)
+        {
+        }
+
+        if (channel->mutex)
+        {
+            gcmkVERIFY_OK(gckOS_DeleteMutex(Os, channel->mutex));
+        }
+
+        gcmkVERIFY_OK(gckOS_Free(Os, channel));
+    }
+
+    return status;
+}
+
+gceSTATUS
+gckOS_CloseSecurityChannel(
+    IN gctUINT32 Channel
+    )
+{
+    /* TODO . */
+    return gcvSTATUS_OK;
+}
+
+gceSTATUS
+gckOS_CallSecurityService(
+    IN gctUINT32 Channel,
+    IN gcsTA_INTERFACE *Interface
+    )
+{
+    gceSTATUS status;
+    TEEC_Result result;
+    gcsSecurityChannel *channel = (gcsSecurityChannel *)Channel;
+    TEEC_Operation operation = {0};
+
+    gcmkHEADER();
+    gcmkVERIFY_ARGUMENT(Channel != 0);
+
+    gckOS_AcquireMutex(channel->os, channel->mutex, gcvINFINITE);
+
+    gckOS_MemCopy(channel->virtual, Interface, channel->bytes);
+
+    operation.paramTypes = TEEC_PARAM_TYPES(
+            TEEC_MEMREF_PARTIAL_INPUT,
+            TEEC_NONE,
+            TEEC_NONE,
+            TEEC_NONE);
+
+    /* Note: we use the updated size in the MemRef output by the encryption. */
+    operation.params[0].memref.parent = &channel->inputBuffer;
+    operation.params[0].memref.offset = 0;
+    operation.params[0].memref.size = sizeof(gcsTA_INTERFACE);
+    operation.started = true;
+
+    /* Start the commit command within the TEE application. */
+    result = TEEC_InvokeCommand(
+            &channel->session,
+            gcvTA_COMMAND_DISPATCH,
+            &operation,
+            NULL);
+
+    gckOS_MemCopy(Interface, channel->virtual, channel->bytes);
+
+    gckOS_ReleaseMutex(channel->os, channel->mutex);
+
+    if (result != TEEC_SUCCESS)
+    {
+        gcmkONERROR(gcvSTATUS_GENERIC_IO);
+    }
+
+    gcmkFOOTER_NO();
+    return gcvSTATUS_OK;
+
+OnError:
+    gcmkFOOTER();
+    return status;
+}
+
+gceSTATUS
+gckOS_InitSecurityChannel(
+    IN gctUINT32 Channel
+    )
+{
+    gceSTATUS status;
+    TEEC_Result result;
+    gcsSecurityChannel *channel = (gcsSecurityChannel *)Channel;
+    TEEC_Operation operation = {0};
+
+    gcmkHEADER();
+    gcmkVERIFY_ARGUMENT(Channel != 0);
+
+    operation.paramTypes = TEEC_PARAM_TYPES(
+            TEEC_MEMREF_PARTIAL_INPUT,
+            TEEC_NONE,
+            TEEC_NONE,
+            TEEC_NONE);
+
+    /* Note: we use the updated size in the MemRef output by the encryption. */
+    operation.params[0].memref.parent = &channel->inputBuffer;
+    operation.params[0].memref.offset = 0;
+    operation.params[0].memref.size = gcmSIZEOF(gcsTA_INTERFACE);
+    operation.started = true;
+
+    /* Start the commit command within the TEE application. */
+    result = TEEC_InvokeCommand(
+            &channel->session,
+            gcvTA_COMMAND_INIT,
+            &operation,
+            NULL);
+
+    if (result != TEEC_SUCCESS)
+    {
+        gcmkONERROR(gcvSTATUS_GENERIC_IO);
+    }
+
+    gcmkFOOTER_NO();
+    return gcvSTATUS_OK;
+
+OnError:
+    gcmkFOOTER();
+    return status;
+}
diff --git a/src/hal/os/linux/kernel/gc_hal_kernel_sync.c b/src/hal/os/linux/kernel/gc_hal_kernel_sync.c
new file mode 100755
index 0000000..3a0feac
--- /dev/null
+++ b/src/hal/os/linux/kernel/gc_hal_kernel_sync.c
@@ -0,0 +1,211 @@
+/****************************************************************************
+*
+*    The MIT License (MIT)
+*
+*    Copyright (c) 2014 Vivante Corporation
+*
+*    Permission is hereby granted, free of charge, to any person obtaining a
+*    copy of this software and associated documentation files (the "Software"),
+*    to deal in the Software without restriction, including without limitation
+*    the rights to use, copy, modify, merge, publish, distribute, sublicense,
+*    and/or sell copies of the Software, and to permit persons to whom the
+*    Software is furnished to do so, subject to the following conditions:
+*
+*    The above copyright notice and this permission notice shall be included in
+*    all copies or substantial portions of the Software.
+*
+*    THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+*    IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+*    FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+*    AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+*    LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+*    FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+*    DEALINGS IN THE SOFTWARE.
+*
+*****************************************************************************
+*
+*    The GPL License (GPL)
+*
+*    Copyright (C) 2014  Vivante Corporation
+*
+*    This program is free software; you can redistribute it and/or
+*    modify it under the terms of the GNU General Public License
+*    as published by the Free Software Foundation; either version 2
+*    of the License, or (at your option) any later version.
+*
+*    This program is distributed in the hope that it will be useful,
+*    but WITHOUT ANY WARRANTY; without even the implied warranty of
+*    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+*    GNU General Public License for more details.
+*
+*    You should have received a copy of the GNU General Public License
+*    along with this program; if not, write to the Free Software Foundation,
+*    Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+*
+*****************************************************************************
+*
+*    Note: This software is released under dual MIT and GPL licenses. A
+*    recipient may use this file under the terms of either the MIT license or
+*    GPL License. If you wish to use only one license not the other, you can
+*    indicate your decision by deleting one of the above license notices in your
+*    version of this file.
+*
+*****************************************************************************/
+
+
+#include <gc_hal.h>
+#include <gc_hal_base.h>
+
+#if gcdANDROID_NATIVE_FENCE_SYNC
+
+#include <linux/kernel.h>
+#include <linux/file.h>
+#include <linux/fs.h>
+#include <linux/miscdevice.h>
+#include <linux/module.h>
+#include <linux/syscalls.h>
+#include <linux/uaccess.h>
+
+#include "gc_hal_kernel_sync.h"
+
+static struct sync_pt *
+viv_sync_pt_dup(
+    struct sync_pt * sync_pt
+    )
+{
+    gceSTATUS status;
+    struct viv_sync_pt *pt;
+    struct viv_sync_pt *src;
+    struct viv_sync_timeline *obj;
+
+    src = (struct viv_sync_pt *) sync_pt;
+    obj = (struct viv_sync_timeline *) sync_pt->parent;
+
+    /* Create the new sync_pt. */
+    pt = (struct viv_sync_pt *)
+        sync_pt_create(&obj->obj, sizeof(struct viv_sync_pt));
+
+    pt->stamp = src->stamp;
+    pt->sync = src->sync;
+
+    /* Reference sync point. */
+    status = gckOS_ReferenceSyncPoint(obj->os, pt->sync);
+
+    if (gcmIS_ERROR(status))
+    {
+        sync_pt_free((struct sync_pt *)pt);
+        return NULL;
+    }
+
+    return (struct sync_pt *)pt;
+}
+
+static int
+viv_sync_pt_has_signaled(
+    struct sync_pt * sync_pt
+    )
+{
+    gceSTATUS status;
+    gctBOOL state;
+    struct viv_sync_pt * pt;
+    struct viv_sync_timeline * obj;
+
+    pt  = (struct viv_sync_pt *)sync_pt;
+    obj = (struct viv_sync_timeline *)sync_pt->parent;
+
+    status = gckOS_QuerySyncPoint(obj->os, pt->sync, &state);
+
+    if (gcmIS_ERROR(status))
+    {
+        /* Error. */
+        return -1;
+    }
+
+    return state;
+}
+
+static int
+viv_sync_pt_compare(
+    struct sync_pt * a,
+    struct sync_pt * b
+    )
+{
+    int ret;
+    struct viv_sync_pt * pt1 = (struct viv_sync_pt *) a;
+    struct viv_sync_pt * pt2 = (struct viv_sync_pt *) b;
+
+    ret = (pt1->stamp <  pt2->stamp) ? -1
+        : (pt1->stamp == pt2->stamp) ?  0
+        : 1;
+
+    return ret;
+}
+
+static void
+viv_sync_pt_free(
+    struct sync_pt * sync_pt
+    )
+{
+    struct viv_sync_pt * pt;
+    struct viv_sync_timeline * obj;
+
+    pt  = (struct viv_sync_pt *) sync_pt;
+    obj = (struct viv_sync_timeline *) sync_pt->parent;
+
+    gckOS_DestroySyncPoint(obj->os, pt->sync);
+}
+
+static struct sync_timeline_ops viv_timeline_ops =
+{
+    .driver_name = "viv_sync",
+    .dup = viv_sync_pt_dup,
+    .has_signaled = viv_sync_pt_has_signaled,
+    .compare = viv_sync_pt_compare,
+    .free_pt = viv_sync_pt_free,
+};
+
+struct viv_sync_timeline *
+viv_sync_timeline_create(
+    const char * name,
+    gckOS os
+    )
+{
+    struct viv_sync_timeline * obj;
+
+    obj = (struct viv_sync_timeline *)
+        sync_timeline_create(&viv_timeline_ops, sizeof(struct viv_sync_timeline), name);
+
+    obj->os    = os;
+    obj->stamp = 0;
+
+    return obj;
+}
+
+struct sync_pt *
+viv_sync_pt_create(
+    struct viv_sync_timeline * obj,
+    gctSYNC_POINT SyncPoint
+    )
+{
+    gceSTATUS status;
+    struct viv_sync_pt * pt;
+
+    pt = (struct viv_sync_pt *)
+        sync_pt_create(&obj->obj, sizeof(struct viv_sync_pt));
+
+    pt->stamp = obj->stamp++;
+    pt->sync  = SyncPoint;
+
+    /* Dup signal. */
+    status = gckOS_ReferenceSyncPoint(obj->os, SyncPoint);
+
+    if (gcmIS_ERROR(status))
+    {
+        sync_pt_free((struct sync_pt *)pt);
+        return NULL;
+    }
+
+    return (struct sync_pt *) pt;
+}
+
+#endif
diff --git a/src/hal/os/linux/kernel/gc_hal_kernel_sync.h b/src/hal/os/linux/kernel/gc_hal_kernel_sync.h
new file mode 100755
index 0000000..658b205
--- /dev/null
+++ b/src/hal/os/linux/kernel/gc_hal_kernel_sync.h
@@ -0,0 +1,106 @@
+/****************************************************************************
+*
+*    The MIT License (MIT)
+*
+*    Copyright (c) 2014 Vivante Corporation
+*
+*    Permission is hereby granted, free of charge, to any person obtaining a
+*    copy of this software and associated documentation files (the "Software"),
+*    to deal in the Software without restriction, including without limitation
+*    the rights to use, copy, modify, merge, publish, distribute, sublicense,
+*    and/or sell copies of the Software, and to permit persons to whom the
+*    Software is furnished to do so, subject to the following conditions:
+*
+*    The above copyright notice and this permission notice shall be included in
+*    all copies or substantial portions of the Software.
+*
+*    THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+*    IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+*    FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+*    AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+*    LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+*    FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+*    DEALINGS IN THE SOFTWARE.
+*
+*****************************************************************************
+*
+*    The GPL License (GPL)
+*
+*    Copyright (C) 2014  Vivante Corporation
+*
+*    This program is free software; you can redistribute it and/or
+*    modify it under the terms of the GNU General Public License
+*    as published by the Free Software Foundation; either version 2
+*    of the License, or (at your option) any later version.
+*
+*    This program is distributed in the hope that it will be useful,
+*    but WITHOUT ANY WARRANTY; without even the implied warranty of
+*    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+*    GNU General Public License for more details.
+*
+*    You should have received a copy of the GNU General Public License
+*    along with this program; if not, write to the Free Software Foundation,
+*    Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+*
+*****************************************************************************
+*
+*    Note: This software is released under dual MIT and GPL licenses. A
+*    recipient may use this file under the terms of either the MIT license or
+*    GPL License. If you wish to use only one license not the other, you can
+*    indicate your decision by deleting one of the above license notices in your
+*    version of this file.
+*
+*****************************************************************************/
+
+
+#ifndef __gc_hal_kernel_sync_h_
+#define __gc_hal_kernel_sync_h_
+
+#include <linux/types.h>
+
+/* sync.h is in drivers/staging/android/ for now. */
+#include <sync.h>
+
+#include <gc_hal.h>
+#include <gc_hal_base.h>
+
+struct viv_sync_timeline
+{
+    /* Parent object. */
+    struct sync_timeline obj;
+
+    /* Timestamp when sync_pt is created. */
+    gctUINT stamp;
+
+    /* Pointer to os struct. */
+    gckOS os;
+};
+
+
+struct viv_sync_pt
+{
+    /* Parent object. */
+    struct sync_pt pt;
+
+    /* Reference sync point*/
+    gctSYNC_POINT sync;
+
+    /* Timestamp when sync_pt is created. */
+    gctUINT stamp;
+};
+
+/* Create viv_sync_timeline object. */
+struct viv_sync_timeline *
+viv_sync_timeline_create(
+    const char * Name,
+    gckOS Os
+    );
+
+/* Create viv_sync_pt object. */
+struct sync_pt *
+viv_sync_pt_create(
+    struct viv_sync_timeline * Obj,
+    gctSYNC_POINT SyncPoint
+    );
+
+#endif /* __gc_hal_kernel_sync_h_ */
diff --git a/src/hal/os/linux/kernel/platform/default/gc_hal_kernel_platform_default.c b/src/hal/os/linux/kernel/platform/default/gc_hal_kernel_platform_default.c
new file mode 100755
index 0000000..599855a
--- /dev/null
+++ b/src/hal/os/linux/kernel/platform/default/gc_hal_kernel_platform_default.c
@@ -0,0 +1,81 @@
+/****************************************************************************
+*
+*    The MIT License (MIT)
+*
+*    Copyright (c) 2014 Vivante Corporation
+*
+*    Permission is hereby granted, free of charge, to any person obtaining a
+*    copy of this software and associated documentation files (the "Software"),
+*    to deal in the Software without restriction, including without limitation
+*    the rights to use, copy, modify, merge, publish, distribute, sublicense,
+*    and/or sell copies of the Software, and to permit persons to whom the
+*    Software is furnished to do so, subject to the following conditions:
+*
+*    The above copyright notice and this permission notice shall be included in
+*    all copies or substantial portions of the Software.
+*
+*    THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+*    IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+*    FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+*    AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+*    LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+*    FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+*    DEALINGS IN THE SOFTWARE.
+*
+*****************************************************************************
+*
+*    The GPL License (GPL)
+*
+*    Copyright (C) 2014  Vivante Corporation
+*
+*    This program is free software; you can redistribute it and/or
+*    modify it under the terms of the GNU General Public License
+*    as published by the Free Software Foundation; either version 2
+*    of the License, or (at your option) any later version.
+*
+*    This program is distributed in the hope that it will be useful,
+*    but WITHOUT ANY WARRANTY; without even the implied warranty of
+*    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+*    GNU General Public License for more details.
+*
+*    You should have received a copy of the GNU General Public License
+*    along with this program; if not, write to the Free Software Foundation,
+*    Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+*
+*****************************************************************************
+*
+*    Note: This software is released under dual MIT and GPL licenses. A
+*    recipient may use this file under the terms of either the MIT license or
+*    GPL License. If you wish to use only one license not the other, you can
+*    indicate your decision by deleting one of the above license notices in your
+*    version of this file.
+*
+*****************************************************************************/
+
+
+#include "gc_hal_kernel_linux.h"
+#include "gc_hal_kernel_platform.h"
+
+gctBOOL
+_NeedAddDevice(
+    IN gckPLATFORM Platform
+    )
+{
+    return gcvTRUE;
+}
+
+gcmkPLATFROM_Name
+
+gcsPLATFORM_OPERATIONS platformOperations =
+{
+    .needAddDevice = _NeedAddDevice,
+    .name          = _Name,
+};
+
+void
+gckPLATFORM_QueryOperations(
+    IN gcsPLATFORM_OPERATIONS ** Operations
+    )
+{
+     *Operations = &platformOperations;
+}
diff --git a/src/hal/os/linux/kernel/platform/ti/gc_hal_kernel_platform_j6.c b/src/hal/os/linux/kernel/platform/ti/gc_hal_kernel_platform_j6.c
new file mode 100755
index 0000000..e760bb6
--- /dev/null
+++ b/src/hal/os/linux/kernel/platform/ti/gc_hal_kernel_platform_j6.c
@@ -0,0 +1,253 @@
+/****************************************************************************
+*
+*    The MIT License (MIT)
+*
+*    Copyright (c) 2014 Vivante Corporation
+*
+*    Permission is hereby granted, free of charge, to any person obtaining a
+*    copy of this software and associated documentation files (the "Software"),
+*    to deal in the Software without restriction, including without limitation
+*    the rights to use, copy, modify, merge, publish, distribute, sublicense,
+*    and/or sell copies of the Software, and to permit persons to whom the
+*    Software is furnished to do so, subject to the following conditions:
+*
+*    The above copyright notice and this permission notice shall be included in
+*    all copies or substantial portions of the Software.
+*
+*    THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+*    IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+*    FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+*    AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+*    LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+*    FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+*    DEALINGS IN THE SOFTWARE.
+*
+*****************************************************************************
+*
+*    The GPL License (GPL)
+*
+*    Copyright (C) 2014  Vivante Corporation
+*
+*    This program is free software; you can redistribute it and/or
+*    modify it under the terms of the GNU General Public License
+*    as published by the Free Software Foundation; either version 2
+*    of the License, or (at your option) any later version.
+*
+*    This program is distributed in the hope that it will be useful,
+*    but WITHOUT ANY WARRANTY; without even the implied warranty of
+*    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+*    GNU General Public License for more details.
+*
+*    You should have received a copy of the GNU General Public License
+*    along with this program; if not, write to the Free Software Foundation,
+*    Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+*
+*****************************************************************************
+*
+*    Note: This software is released under dual MIT and GPL licenses. A
+*    recipient may use this file under the terms of either the MIT license or
+*    GPL License. If you wish to use only one license not the other, you can
+*    indicate your decision by deleting one of the above license notices in your
+*    version of this file.
+*
+*****************************************************************************/
+
+
+#include "gc_hal_kernel_linux.h"
+#include "gc_hal_kernel_platform.h"
+
+#include <linux/pm_runtime.h>
+#include <linux/delay.h>
+#include <linux/io.h>
+#include <linux/of.h>
+#include <linux/of_device.h>
+
+/*
+ * GC320 platform data struct, using the definition as in
+ * `linux/platform_data/omap_gcx.h` in k3.8
+ *
+ * TODO: revisit this and tune it as per latest requirements
+ */
+struct omap_gcx_platform_data {
+    bool is_hw_present;
+    void *regbase;
+    /*bool (*was_context_lost)(struct device *dev);*/
+    int (*get_context_loss_count)(struct device *dev);
+    /* device scale */
+    int (*scale_dev)(struct device *dev, unsigned long freq);
+    /* bandwidth */
+    int (*set_bw)(struct device *dev, unsigned long v);
+};
+
+static int gcxxx_get_context_loss_count(struct device *dev)
+{
+    /*
+        omap_pm_get_context_loss_count not supported:
+        returning with default 1
+    */
+    return 1;
+}
+static int gcxxx_scale_dev(struct device *dev, unsigned long val)
+{
+    /*omap_device_scale(dev, val) is not supported, returning with no-op
+    * for now. */
+    return 0;
+}
+
+static int gcxxx_set_l3_bw(struct device *dev, unsigned long val)
+{
+    return 0; /*omap_pm_set_min_bus_tput(dev, OCP_INITIATOR_AGENT, val);*/
+}
+static struct omap_gcx_platform_data omap_gcxxx = {
+    .get_context_loss_count = gcxxx_get_context_loss_count,
+    .scale_dev = gcxxx_scale_dev,
+    .set_bw = gcxxx_set_l3_bw,
+};
+
+
+
+static const struct of_device_id bb2d_of_match[] = {
+    {
+        .compatible = "ti,dra7-bb2d",
+        .data = &omap_gcxxx,
+    },
+    {},
+};
+
+
+static gctBOOL
+_NeedAddDevice(
+    IN gckPLATFORM Platform
+    )
+{
+    /* 
+     * platform_device is registered through DTS framework, we dont need to
+     * register explicitly, return false here.
+     */
+    return gcvFALSE;
+}
+
+/* override J6 specific fields of `platform_driver` */
+static gceSTATUS
+_AdjustDriver(
+    IN gckPLATFORM Platform
+    )
+{
+    struct platform_driver * driver = Platform->driver;
+
+    /* return DTS match entry */
+    driver->driver.of_match_table = bb2d_of_match;
+
+    return gcvSTATUS_TRUE;
+}
+
+/* prepare clock and power operations */
+static gceSTATUS
+_GetPower(
+    IN gckPLATFORM Platform
+    )
+{
+    struct platform_device *pdev;
+    pdev = Platform->device;
+
+    pm_runtime_enable(&pdev->dev);
+    pm_runtime_get_sync(&pdev->dev);
+
+    return gcvSTATUS_TRUE;
+}
+
+/* finish clock and power operations */
+static gceSTATUS
+_PutPower(
+    IN gckPLATFORM Platform
+    )
+{
+    struct platform_device *pdev;
+    pdev = Platform->device;
+
+    pm_runtime_put_sync(&pdev->dev);
+    pm_runtime_disable(&pdev->dev);
+
+    return gcvSTATUS_TRUE;
+}
+
+/*
+ * AdjustParam - override default/passed in module arguments.
+ *
+ * Here we modify/update IRQ and register address entries by querying through
+ * DTS framework.
+ */
+static gceSTATUS
+_AdjustParam(
+    IN gckPLATFORM Platform,
+    OUT gcsMODULE_PARAMETERS *Args
+    )
+{
+    struct resource *res_ptr = NULL;
+
+    struct omap_gcx_platform_data *plat;
+    struct of_device_id *match;
+    struct platform_device *pdev;
+    int dev_irq;
+
+    if (Args->registerMemMapped)
+        return gcvSTATUS_TRUE;
+
+    pdev = Platform->device;
+
+    match = (struct of_device_id *)of_match_device(of_match_ptr(bb2d_of_match), &pdev->dev);
+
+    if (match) {
+        plat = (struct omap_gcx_platform_data *) match->data;
+        plat->is_hw_present = (of_machine_is_compatible("ti, omap54xx") || of_machine_is_compatible("ti,dra7"));
+    } else {
+        /* platform_device registration */
+        plat = (struct omap_gcx_platform_data *)dev_get_platdata(&pdev->dev);
+    }
+
+    if ( !plat->is_hw_present )
+        return gcvSTATUS_FALSE;
+
+    res_ptr = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+    if (!res_ptr) {
+        return gcvSTATUS_FALSE;
+    }
+    /* map the address space */
+    Args->registerMemAddress = (gctPOINTER)devm_ioremap_resource(&pdev->dev, res_ptr);
+    Args->registerMemMapped = gcvTRUE;
+
+    /*
+     * IRQ line is acquired through commandline argument with unified driver.
+     * With k3.14, the MPU IRQ line in J6 is configured dynamically at runtime
+     * per dtb configuration and has to be queried through `platform_get_irq()`
+     * API.
+     */
+    dev_irq = platform_get_irq(pdev, 0);
+    if (dev_irq < 0) {
+        /* TODO: use Vivante debug prints */
+        printk(KERN_ERR "%s: platform_get_irq failed (%d)\n",
+                __FUNCTION__, -dev_irq);
+        return -EINVAL;
+    }
+    printk(KERN_INFO "GC320 IRQ: %d\n", dev_irq);
+    Args->irqLine = dev_irq;
+    
+    return gcvSTATUS_TRUE;
+}
+
+gcsPLATFORM_OPERATIONS platformOperations =
+{
+    .adjustParam   = _AdjustParam,
+    .adjustDriver  = _AdjustDriver,
+    .needAddDevice = _NeedAddDevice,
+    .getPower      = _GetPower,
+    .putPower      = _PutPower,
+};
+
+void
+gckPLATFORM_QueryOperations(
+    IN gcsPLATFORM_OPERATIONS ** Operations
+    )
+{
+     *Operations = &platformOperations;
+}
diff --git a/src/hal/os/linux/kernel/platform/ti/gc_hal_kernel_platform_ti.c b/src/hal/os/linux/kernel/platform/ti/gc_hal_kernel_platform_ti.c
new file mode 100755
index 0000000..32ea3b6
--- /dev/null
+++ b/src/hal/os/linux/kernel/platform/ti/gc_hal_kernel_platform_ti.c
@@ -0,0 +1,188 @@
+/****************************************************************************
+*
+*    The MIT License (MIT)
+*
+*    Copyright (c) 2014 Vivante Corporation
+*
+*    Permission is hereby granted, free of charge, to any person obtaining a
+*    copy of this software and associated documentation files (the "Software"),
+*    to deal in the Software without restriction, including without limitation
+*    the rights to use, copy, modify, merge, publish, distribute, sublicense,
+*    and/or sell copies of the Software, and to permit persons to whom the
+*    Software is furnished to do so, subject to the following conditions:
+*
+*    The above copyright notice and this permission notice shall be included in
+*    all copies or substantial portions of the Software.
+*
+*    THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+*    IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+*    FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+*    AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+*    LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+*    FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+*    DEALINGS IN THE SOFTWARE.
+*
+*****************************************************************************
+*
+*    The GPL License (GPL)
+*
+*    Copyright (C) 2014  Vivante Corporation
+*
+*    This program is free software; you can redistribute it and/or
+*    modify it under the terms of the GNU General Public License
+*    as published by the Free Software Foundation; either version 2
+*    of the License, or (at your option) any later version.
+*
+*    This program is distributed in the hope that it will be useful,
+*    but WITHOUT ANY WARRANTY; without even the implied warranty of
+*    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+*    GNU General Public License for more details.
+*
+*    You should have received a copy of the GNU General Public License
+*    along with this program; if not, write to the Free Software Foundation,
+*    Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+*
+*****************************************************************************
+*
+*    Note: This software is released under dual MIT and GPL licenses. A
+*    recipient may use this file under the terms of either the MIT license or
+*    GPL License. If you wish to use only one license not the other, you can
+*    indicate your decision by deleting one of the above license notices in your
+*    version of this file.
+*
+*****************************************************************************/
+
+
+#include "gc_hal_kernel_linux.h"
+#include "gc_hal_kernel_platform.h"
+
+#include <linux/pm_runtime.h>
+#include <linux/delay.h>
+#include <linux/opp.h>
+#include <linux/io.h>
+#include <linux/of.h>
+#include <linux/of_device.h>
+#include <linux/platform_data/omap_gcx.h>
+
+static int gcxxx_get_context_loss_count(struct device *dev)
+{
+    /*
+        omap_pm_get_context_loss_count not supported:
+        returning with default 1
+    */
+    return 1;
+}
+static int gcxxx_scale_dev(struct device *dev, unsigned long val)
+{
+    /*omap_device_scale(dev, val) is not supported, returning with no-op
+    * for now. */
+    return 0;
+}
+
+static int gcxxx_set_l3_bw(struct device *dev, unsigned long val)
+{
+    return 0; /*omap_pm_set_min_bus_tput(dev, OCP_INITIATOR_AGENT, val);*/
+}
+static struct omap_gcx_platform_data omap_gcxxx = {
+    .get_context_loss_count = gcxxx_get_context_loss_count,
+    .scale_dev = gcxxx_scale_dev,
+    .set_bw = gcxxx_set_l3_bw,
+};
+
+
+
+static const struct of_device_id bb2d_of_match[] = {
+    {
+        .compatible = "ti,bb2d",
+        .data = &omap_gcxxx,
+    },
+    {},
+};
+
+
+static gctBOOL
+_NeedAddDevice(
+    IN gckPLATFORM Platform
+    )
+{
+    return gcvTRUE;
+}
+
+static gceSTATUS
+_AdjustDriver(
+    IN gckPLATFORM Platform
+    )
+{
+    struct platform_driver * driver = Platform->driver;
+    driver->driver.of_match_table = bb2d_of_match;
+    return gcvSTATUS_TRUE;
+}
+
+static gceSTATUS
+_GetPower(
+    IN gckPLATFORM Platform
+    )
+{
+    struct platform_device *pdev;
+    pdev = Platform->device;
+
+    pm_runtime_enable(&pdev->dev);
+    pm_runtime_get_sync(&pdev->dev);
+
+    return gcvSTATUS_TRUE;
+}
+
+static gceSTATUS
+_AdjustParam(
+    IN gckPLATFORM Platform,
+    OUT gcsMODULE_PARAMETERS *Args
+    )
+{
+    struct resource *res_ptr = NULL;
+
+    struct omap_gcx_platform_data *plat;
+    struct of_device_id *match;
+    struct platform_device *pdev;
+
+    if (Args->registerMemMapped)
+        return gcvSTATUS_TRUE;
+
+    pdev = Platform->device;
+
+
+    plat = (struct omap_gcx_platform_data *)dev_get_platdata(&pdev->dev);
+
+    match = (struct of_device_id *)of_match_device(of_match_ptr(bb2d_of_match), &pdev->dev);
+
+    if (match) {
+        plat = (struct omap_gcx_platform_data *) match->data;
+        plat->is_hw_present = (of_machine_is_compatible("ti, omap54xx") || of_machine_is_compatible("ti,dra7"));
+    }
+
+    if ( !plat->is_hw_present )
+        return gcvSTATUS_FALSE;
+
+    res_ptr = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+    if (!res_ptr) {
+        return gcvSTATUS_FALSE;
+    }
+     Args->registerMemAddress = (gctPOINTER)devm_ioremap_resource(&pdev->dev, res_ptr);
+    Args->registerMemMapped = gcvTRUE;
+    return gcvSTATUS_TRUE;
+}
+
+gcsPLATFORM_OPERATIONS platformOperations =
+{
+    .adjustParam   = _AdjustParam,
+    .adjustDriver = _AdjustDriver,
+    .needAddDevice = _NeedAddDevice,
+    .getPower      = _GetPower,
+};
+
+void
+gckPLATFORM_QueryOperations(
+    IN gcsPLATFORM_OPERATIONS ** Operations
+    )
+{
+     *Operations = &platformOperations;
+}