libdrm: add exynos drm support

this patch adds libdrm_exynos helper layer that inclues some intefaces
for exynos specific gem and virtual display driver and also adds exynos
module name to modtest and vbltest.

Changelog v2:
- fixed exynos broken ioctl.
  the pointer of uint64_t *edid should be removed.
- removed unnecessary definitions.
- added drm prime interfaces.
  this feature is used to share a buffer between drivers or memory managers
  and for this, please, refer to below links:
	http://www.mjmwired.net/kernel/Documentation/dma-buf-sharing.txt
	http://lwn.net/Articles/488664/

this patch is based on a link below:
	git://anongit.freedesktop.org/mesa/drm
	commit id: d72a44c7c4f5eea9c1e5bb0c36cb9e0224b9ca22

Reviewed-by: Rob Clark <rob@ti.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Rob Clark <rob@ti.com>

5 files changed, 663 insertions, 0 deletions

diff --git a/exynos/Makefile.am b/exynos/Makefile.am
new file mode 100644
index 00000000..e782d34d
--- /dev/null
+++ b/exynos/Makefile.am
@@ -0,0 +1,22 @@
+AM_CFLAGS = \
+        $(WARN_CFLAGS) \
+        -I$(top_srcdir) \
+        -I$(top_srcdir)/exynos \
+        $(PTHREADSTUBS_CFLAGS) \
+        -I$(top_srcdir)/include/drm
+
+libdrm_exynos_la_LTLIBRARIES = libdrm_exynos.la
+libdrm_exynos_ladir = $(libdir)
+libdrm_exynos_la_LDFLAGS = -version-number 1:0:0 -no-undefined
+libdrm_exynos_la_LIBADD = ../libdrm.la @PTHREADSTUBS_LIBS@
+
+libdrm_exynos_la_SOURCES = exynos_drm.c
+
+libdrm_exynoscommonincludedir = ${includedir}/exynos
+libdrm_exynoscommoninclude_HEADERS = exynos_drm.h
+
+libdrm_exynosincludedir = ${includedir}/libdrm
+libdrm_exynosinclude_HEADERS = exynos_drmif.h
+
+pkgconfigdir = @pkgconfigdir@
+pkgconfig_DATA = libdrm_exynos.pc
diff --git a/exynos/exynos_drm.c b/exynos/exynos_drm.c
new file mode 100644
index 00000000..4db755e7
--- /dev/null
+++ b/exynos/exynos_drm.c
@@ -0,0 +1,396 @@
+/*
+ * Copyright (C) 2012 Samsung Electronics Co., Ltd.
+ *
+ * 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 (including the next
+ * paragraph) 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.
+ *
+ * Authors:
+ *    Inki Dae <inki.dae@samsung.com>
+ */
+
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+
+#include <stdlib.h>
+#include <stdio.h>
+#include <string.h>
+#include <errno.h>
+
+#include <sys/mman.h>
+#include <linux/stddef.h>
+
+#include <xf86drm.h>
+
+#include "exynos_drm.h"
+#include "exynos_drmif.h"
+
+/*
+ * Create exynos drm device object.
+ *
+ * @fd: file descriptor to exynos drm driver opened.
+ *
+ * if true, return the device object else NULL.
+ */
+struct exynos_device * exynos_device_create(int fd)
+{
+        struct exynos_device *dev;
+
+        dev = calloc(sizeof(*dev), 1);
+        if (!dev) {
+                fprintf(stderr, "failed to create device[%s].\n",
+                                strerror(errno));
+                return NULL;
+        }
+
+        dev->fd = fd;
+
+        return dev;
+}
+
+/*
+ * Destroy exynos drm device object
+ *
+ * @dev: exynos drm device object.
+ */
+void exynos_device_destroy(struct exynos_device *dev)
+{
+        free(dev);
+}
+
+/*
+ * Create a exynos buffer object to exynos drm device.
+ *
+ * @dev: exynos drm device object.
+ * @size: user-desired size.
+ * flags: user-desired memory type.
+ *      user can set one or more types among several types to memory
+ *      allocation and cache attribute types. and as default,
+ *      EXYNOS_BO_NONCONTIG and EXYNOS-BO_NONCACHABLE types would
+ *      be used.
+ *
+ * if true, return a exynos buffer object else NULL.
+ */
+struct exynos_bo * exynos_bo_create(struct exynos_device *dev,
+                                                size_t size, uint32_t flags)
+{
+        struct exynos_bo *bo;
+        struct drm_exynos_gem_create req = {
+                .size = size,
+                .flags = flags,
+        };
+
+        if (size == 0) {
+                fprintf(stderr, "invalid size.\n");
+                goto fail;
+        }
+
+        bo = calloc(sizeof(*bo), 1);
+        if (!bo) {
+                fprintf(stderr, "failed to create bo[%s].\n",
+                                strerror(errno));
+                goto err_free_bo;
+        }
+
+        bo->dev = dev;
+
+        if (drmIoctl(dev->fd, DRM_IOCTL_EXYNOS_GEM_CREATE, &req)){
+                fprintf(stderr, "failed to create gem object[%s].\n",
+                                strerror(errno));
+                goto err_free_bo;
+        }
+
+        bo->handle = req.handle;
+        bo->size = size;
+        bo->flags = flags;
+
+        return bo;
+
+err_free_bo:
+        free(bo);
+fail:
+        return NULL;
+}
+
+/*
+ * Get information to gem region allocated.
+ *
+ * @dev: exynos drm device object.
+ * @handle: gem handle to request gem info.
+ * @size: size to gem object and returned by kernel side.
+ * @flags: gem flags to gem object and returned by kernel side.
+ *
+ * with this function call, you can get flags and size to gem handle
+ * through bo object.
+ *
+ * if true, return 0 else negative.
+ */
+int exynos_bo_get_info(struct exynos_device *dev, uint32_t handle,
+                        size_t *size, uint32_t *flags)
+{
+        int ret;
+        struct drm_exynos_gem_info req = {
+                .handle = handle,
+        };
+
+        ret = drmIoctl(dev->fd, DRM_IOCTL_EXYNOS_GEM_GET, &req);
+        if (ret < 0) {
+                fprintf(stderr, "failed to get gem object information[%s].\n",
+                                strerror(errno));
+                return ret;
+        }
+
+        *size = req.size;
+        *flags = req.flags;
+
+        return 0;
+}
+
+/*
+ * Destroy a exynos buffer object.
+ *
+ * @bo: a exynos buffer object to be destroyed.
+ */
+void exynos_bo_destroy(struct exynos_bo *bo)
+{
+        if (!bo)
+                return;
+
+        if (bo->vaddr)
+                munmap(bo->vaddr, bo->size);
+
+        if (bo->handle) {
+                struct drm_gem_close req = {
+                        .handle = bo->handle,
+                };
+
+                drmIoctl(bo->dev->fd, DRM_IOCTL_GEM_CLOSE, &req);
+        }
+
+        free(bo);
+}
+
+
+/*
+ * Get a exynos buffer object from a gem global object name.
+ *
+ * @dev: a exynos device object.
+ * @name: a gem global object name exported by another process.
+ *
+ * this interface is used to get a exynos buffer object from a gem
+ * global object name sent by another process for buffer sharing.
+ *
+ * if true, return a exynos buffer object else NULL.
+ *
+ */
+struct exynos_bo * exynos_bo_from_name(struct exynos_device *dev, uint32_t name)
+{
+        struct exynos_bo *bo;
+        struct drm_gem_open req = {
+                .name = name,
+        };
+
+        bo = calloc(sizeof(*bo), 1);
+        if (!bo) {
+                fprintf(stderr, "failed to allocate bo[%s].\n",
+                                strerror(errno));
+                return NULL;
+        }
+
+        if (drmIoctl(dev->fd, DRM_IOCTL_GEM_OPEN, &req)) {
+                fprintf(stderr, "failed to open gem object[%s].\n",
+                                strerror(errno));
+                goto err_free_bo;
+        }
+
+        bo->dev = dev;
+        bo->name = name;
+        bo->handle = req.handle;
+
+        return bo;
+
+err_free_bo:
+        free(bo);
+        return NULL;
+}
+
+/*
+ * Get a gem global object name from a gem object handle.
+ *
+ * @bo: a exynos buffer object including gem handle.
+ * @name: a gem global object name to be got by kernel driver.
+ *
+ * this interface is used to get a gem global object name from a gem object
+ * handle to a buffer that wants to share it with another process.
+ *
+ * if true, return 0 else negative.
+ */
+int exynos_bo_get_name(struct exynos_bo *bo, uint32_t *name)
+{
+        if (!bo->name) {
+                struct drm_gem_flink req = {
+                        .handle = bo->handle,
+                };
+                int ret;
+
+                ret = drmIoctl(bo->dev->fd, DRM_IOCTL_GEM_FLINK, &req);
+                if (ret) {
+                        fprintf(stderr, "failed to get gem global name[%s].\n",
+                                        strerror(errno));
+                        return ret;
+                }
+
+                bo->name = req.name;
+        }
+
+        *name = bo->name;
+
+        return 0;
+}
+
+uint32_t exynos_bo_handle(struct exynos_bo *bo)
+{
+        return bo->handle;
+}
+
+/*
+ * Mmap a buffer to user space.
+ *
+ * @bo: a exynos buffer object including a gem object handle to be mmapped
+ *      to user space.
+ *
+ * if true, user pointer mmaped else NULL.
+ */
+void *exynos_bo_map(struct exynos_bo *bo)
+{
+        if (!bo->vaddr) {
+                struct exynos_device *dev = bo->dev;
+                struct drm_exynos_gem_mmap req = {
+                        .handle = bo->handle,
+                        .size   = bo->size,
+                };
+                int ret;
+
+                ret = drmIoctl(dev->fd, DRM_IOCTL_EXYNOS_GEM_MMAP, &req);
+                if (ret) {
+                        fprintf(stderr, "failed to mmap[%s].\n",
+                                strerror(errno));
+                        return NULL;
+                }
+
+                bo->vaddr = req.mapped;
+        }
+
+        return bo->vaddr;
+}
+
+/*
+ * Export gem object to dmabuf as file descriptor.
+ *
+ * @dev: a exynos device object.
+ * @handle: gem handle to be exported into dmabuf as file descriptor.
+ * @fd: file descriptor to dmabuf exported from gem handle and
+ *      returned by kernel side.
+ *
+ * if true, return 0 else negative.
+ */
+int exynos_prime_handle_to_fd(struct exynos_device *dev, uint32_t handle,
+                                        int *fd)
+{
+        int ret;
+        struct drm_prime_handle req = {
+                .handle = handle,
+        };
+
+        ret = drmIoctl(dev->fd, DRM_IOCTL_PRIME_HANDLE_TO_FD, &req);
+        if (ret) {
+                fprintf(stderr, "failed to mmap[%s].\n",
+                        strerror(errno));
+                return ret;
+        }
+
+        *fd = req.fd;
+        return 0;
+}
+
+/*
+ * Import file descriptor into gem handle.
+ *
+ * @dev: a exynos device object.
+ * @fd: file descriptor exported into dmabuf.
+ * @handle: gem handle to gem object imported from file descriptor
+ *      and returned by kernel side.
+ *
+ * if true, return 0 else negative.
+ */
+int exynos_prime_fd_to_handle(struct exynos_device *dev, int fd,
+                                        uint32_t *handle)
+{
+        int ret;
+        struct drm_prime_handle req = {
+                .fd     = fd,
+        };
+
+        ret = drmIoctl(dev->fd, DRM_IOCTL_PRIME_FD_TO_HANDLE, &req);
+        if (ret) {
+                fprintf(stderr, "failed to mmap[%s].\n",
+                        strerror(errno));
+                return ret;
+        }
+
+        *handle = req.handle;
+        return 0;
+}
+
+
+
+/*
+ * Request Wireless Display connection or disconnection.
+ *
+ * @dev: a exynos device object.
+ * @connect: indicate whether connectoin or disconnection request.
+ * @ext: indicate whether edid data includes extentions data or not.
+ * @edid: a pointer to edid data from Wireless Display device.
+ *
+ * this interface is used to request Virtual Display driver connection or
+ * disconnection. for this, user should get a edid data from the Wireless
+ * Display device and then send that data to kernel driver with connection
+ * request
+ *
+ * if true, return 0 else negative.
+ */
+int exynos_vidi_connection(struct exynos_device *dev, uint32_t connect,
+                                uint32_t ext, void *edid)
+{
+        struct drm_exynos_vidi_connection req = {
+                .connection     = connect,
+                .extensions     = ext,
+                .edid           = edid,
+        };
+        int ret;
+
+        ret = drmIoctl(dev->fd, DRM_IOCTL_EXYNOS_VIDI_CONNECTION, &req);
+        if (ret) {
+                fprintf(stderr, "failed to request vidi connection[%s].\n",
+                                strerror(errno));
+                return ret;
+        }
+
+        return 0;
+}
diff --git a/exynos/exynos_drm.h b/exynos/exynos_drm.h
new file mode 100644
index 00000000..dc2eef36
--- /dev/null
+++ b/exynos/exynos_drm.h
@@ -0,0 +1,146 @@
+/* exynos_drm.h
+ *
+ * Copyright (c) 2011 Samsung Electronics Co., Ltd.
+ * Authors:
+ *      Inki Dae <inki.dae@samsung.com>
+ *      Joonyoung Shim <jy0922.shim@samsung.com>
+ *      Seung-Woo Kim <sw0312.kim@samsung.com>
+ *
+ * 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 (including the next
+ * paragraph) 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
+ * VA LINUX SYSTEMS AND/OR ITS SUPPLIERS 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.
+ */
+
+#ifndef _EXYNOS_DRM_H_
+#define _EXYNOS_DRM_H_
+
+#include "drm.h"
+
+/**
+ * User-desired buffer creation information structure.
+ *
+ * @size: user-desired memory allocation size.
+ *      - this size value would be page-aligned internally.
+ * @flags: user request for setting memory type or cache attributes.
+ * @handle: returned a handle to created gem object.
+ *      - this handle will be set by gem module of kernel side.
+ */
+struct drm_exynos_gem_create {
+        uint64_t size;
+        unsigned int flags;
+        unsigned int handle;
+};
+
+/**
+ * A structure for getting buffer offset.
+ *
+ * @handle: a pointer to gem object created.
+ * @pad: just padding to be 64-bit aligned.
+ * @offset: relatived offset value of the memory region allocated.
+ *      - this value should be set by user.
+ */
+struct drm_exynos_gem_map_off {
+        unsigned int handle;
+        unsigned int pad;
+        uint64_t offset;
+};
+
+/**
+ * A structure for mapping buffer.
+ *
+ * @handle: a handle to gem object created.
+ * @size: memory size to be mapped.
+ * @mapped: having user virtual address mmaped.
+ *      - this variable would be filled by exynos gem module
+ *      of kernel side with user virtual address which is allocated
+ *      by do_mmap().
+ */
+struct drm_exynos_gem_mmap {
+        unsigned int handle;
+        unsigned int size;
+        uint64_t mapped;
+};
+
+/**
+ * A structure to gem information.
+ *
+ * @handle: a handle to gem object created.
+ * @flags: flag value including memory type and cache attribute and
+ *      this value would be set by driver.
+ * @size: size to memory region allocated by gem and this size would
+ *      be set by driver.
+ */
+struct drm_exynos_gem_info {
+        unsigned int handle;
+        unsigned int flags;
+        uint64_t size;
+};
+
+/**
+ * A structure for user connection request of virtual display.
+ *
+ * @connection: indicate whether doing connetion or not by user.
+ * @extensions: if this value is 1 then the vidi driver would need additional
+ *      128bytes edid data.
+ * @edid: the edid data pointer from user side.
+ */
+struct drm_exynos_vidi_connection {
+        unsigned int connection;
+        unsigned int extensions;
+        uint64_t edid;
+};
+
+/* memory type definitions. */
+enum e_drm_exynos_gem_mem_type {
+        /* Physically Continuous memory and used as default. */
+        EXYNOS_BO_CONTIG        = 0 << 0,
+        /* Physically Non-Continuous memory. */
+        EXYNOS_BO_NONCONTIG     = 1 << 0,
+        /* non-cachable mapping and used as default. */
+        EXYNOS_BO_NONCACHABLE   = 0 << 1,
+        /* cachable mapping. */
+        EXYNOS_BO_CACHABLE      = 1 << 1,
+        /* write-combine mapping. */
+        EXYNOS_BO_WC            = 1 << 2,
+        EXYNOS_BO_MASK          = EXYNOS_BO_NONCONTIG | EXYNOS_BO_CACHABLE |
+                                        EXYNOS_BO_WC
+};
+
+#define DRM_EXYNOS_GEM_CREATE           0x00
+#define DRM_EXYNOS_GEM_MAP_OFFSET       0x01
+#define DRM_EXYNOS_GEM_MMAP             0x02
+/* Reserved 0x04 ~ 0x05 for exynos specific gem ioctl */
+#define DRM_EXYNOS_GEM_GET              0x04
+#define DRM_EXYNOS_VIDI_CONNECTION      0x07
+
+#define DRM_IOCTL_EXYNOS_GEM_CREATE             DRM_IOWR(DRM_COMMAND_BASE + \
+                DRM_EXYNOS_GEM_CREATE, struct drm_exynos_gem_create)
+
+#define DRM_IOCTL_EXYNOS_GEM_MAP_OFFSET DRM_IOWR(DRM_COMMAND_BASE + \
+                DRM_EXYNOS_GEM_MAP_OFFSET, struct drm_exynos_gem_map_off)
+
+#define DRM_IOCTL_EXYNOS_GEM_MMAP       DRM_IOWR(DRM_COMMAND_BASE + \
+                DRM_EXYNOS_GEM_MMAP, struct drm_exynos_gem_mmap)
+
+#define DRM_IOCTL_EXYNOS_GEM_GET        DRM_IOWR(DRM_COMMAND_BASE + \
+                DRM_EXYNOS_GEM_GET,     struct drm_exynos_gem_info)
+
+#define DRM_IOCTL_EXYNOS_VIDI_CONNECTION        DRM_IOWR(DRM_COMMAND_BASE + \
+                DRM_EXYNOS_VIDI_CONNECTION, struct drm_exynos_vidi_connection)
+
+#endif
diff --git a/exynos/exynos_drmif.h b/exynos/exynos_drmif.h
new file mode 100644
index 00000000..92f613ea
--- /dev/null
+++ b/exynos/exynos_drmif.h
@@ -0,0 +1,88 @@
+/*
+ * Copyright (C) 2012 Samsung Electronics Co., Ltd.
+ *
+ * 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 (including the next
+ * paragraph) 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.
+ *
+ * Authors:
+ *    Inki Dae <inki.dae@samsung.com>
+ */
+
+#ifndef EXYNOS_DRMIF_H_
+#define EXYNOS_DRMIF_H_
+
+#include <xf86drm.h>
+#include <stdint.h>
+#include "exynos_drm.h"
+
+struct exynos_device {
+        int fd;
+};
+
+/*
+ * Exynos Buffer Object structure.
+ *
+ * @dev: exynos device object allocated.
+ * @handle: a gem handle to gem object created.
+ * @flags: indicate memory allocation and cache attribute types.
+ * @fd: file descriptor exported into dmabuf.
+ * @size: size to the buffer created.
+ * @vaddr: user space address to a gem buffer mmaped.
+ * @name: a gem global handle from flink request.
+ */
+struct exynos_bo {
+        struct exynos_device    *dev;
+        uint32_t                handle;
+        uint32_t                flags;
+        int                     fd;
+        size_t                  size;
+        void                    *vaddr;
+        uint32_t                name;
+};
+
+/*
+ * device related functions:
+ */
+struct exynos_device * exynos_device_create(int fd);
+void exynos_device_destroy(struct exynos_device *dev);
+
+/*
+ * buffer-object related functions:
+ */
+struct exynos_bo * exynos_bo_create(struct exynos_device *dev,
+                size_t size, uint32_t flags);
+int exynos_bo_get_info(struct exynos_device *dev, uint32_t handle,
+                        size_t *size, uint32_t *flags);
+void exynos_bo_destroy(struct exynos_bo *bo);
+struct exynos_bo * exynos_bo_from_name(struct exynos_device *dev, uint32_t name);
+int exynos_bo_get_name(struct exynos_bo *bo, uint32_t *name);
+uint32_t exynos_bo_handle(struct exynos_bo *bo);
+void * exynos_bo_map(struct exynos_bo *bo);
+int exynos_prime_handle_to_fd(struct exynos_device *dev, uint32_t handle,
+                                        int *fd);
+int exynos_prime_fd_to_handle(struct exynos_device *dev, int fd,
+                                        uint32_t *handle);
+
+/*
+ * Virtual Display related functions:
+ */
+int exynos_vidi_connection(struct exynos_device *dev, uint32_t connect,
+                                uint32_t ext, void *edid);
+
+#endif /* EXYNOS_DRMIF_H_ */
diff --git a/exynos/libdrm_exynos.pc.in b/exynos/libdrm_exynos.pc.in
new file mode 100644
index 00000000..5ce91186
--- /dev/null
+++ b/exynos/libdrm_exynos.pc.in
@@ -0,0 +1,11 @@
+prefix=@prefix@
+exec_prefix=@exec_prefix@
+libdir=@libdir@
+includedir=@includedir@
+
+Name: libdrm_exynos
+Description: Userspace interface to exynos kernel DRM services
+Version: 0.6
+Libs: -L${libdir} -ldrm_exynos
+Cflags: -I${includedir} -I${includedir}/libdrm -I${includedir}/exynos
+Requires.private: libdrm