1 files changed, 103 insertions, 0 deletions

diff --git a/include/linux/omap_ion.h b/include/linux/omap_ion.h
new file mode 100644
index 00000000000..a5e0441f123
--- /dev/null
+++ b/include/linux/omap_ion.h
@@ -0,0 +1,103 @@
+/*
+ * include/linux/omap_ion.h
+ *
+ * Copyright (C) 2011 Google, Inc.
+ *
+ * This software is licensed under the terms of the GNU General Public
+ * License version 2, as published by the Free Software Foundation, and
+ * may be copied, distributed, and modified under those terms.
+ *
+ * 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.
+ *
+ */
+
+#ifndef _LINUX_OMAP_ION_H
+#define _LINUX_OMAP_ION_H
+
+#include <linux/types.h>
+
+
+/**
+ * struct omap_ion_tiler_alloc_data - metadata passed from userspace for allocations
+ * @w:          width of the allocation
+ * @h:          height of the allocation
+ * @fmt:        format of the data (8, 16, 32bit or page)
+ * @flags:      flags passed to heap
+ * @stride:     stride of the allocation, returned to caller from kernel
+ * @handle:     pointer that will be populated with a cookie to use to refer
+ *              to this allocation
+ *
+ * Provided by userspace as an argument to the ioctl
+ */
+struct omap_ion_tiler_alloc_data {
+        size_t w;
+        size_t h;
+        int fmt;
+        unsigned int flags;
+        struct ion_handle *handle;
+        size_t stride;
+        size_t offset;
+        u32 out_align;
+        u32 token;
+};
+
+#ifdef __KERNEL__
+int omap_ion_tiler_alloc(struct ion_client *client,
+                         struct omap_ion_tiler_alloc_data *data);
+int omap_ion_nonsecure_tiler_alloc(struct ion_client *client,
+                         struct omap_ion_tiler_alloc_data *data);
+/* given a handle in the tiler, return a list of tiler pages that back it */
+int omap_tiler_pages(struct ion_client *client, struct ion_handle *handle,
+                     int *n, u32 **tiler_pages);
+int omap_ion_fd_to_handles(int fd, struct ion_client **client,
+                struct ion_handle **handles,
+                int *num_handles);
+int omap_tiler_vinfo(struct ion_client *client,
+                        struct ion_handle *handle, unsigned int *vstride,
+                        unsigned int *vsize);
+
+int omap_ion_share_fd_to_buffers(int fd, struct ion_buffer **buffers,
+                                        int *num_handles);
+
+extern struct ion_device *omap_ion_device;
+#endif /* __KERNEL__ */
+
+/* additional heaps used only on omap */
+enum {
+        OMAP_ION_HEAP_TYPE_TILER = ION_HEAP_TYPE_CUSTOM + 1,
+        OMAP_ION_HEAP_TYPE_TILER_RESERVATION,
+};
+
+#define OMAP_ION_HEAP_TILER_MASK (1 << OMAP_ION_HEAP_TYPE_TILER)
+
+enum {
+        OMAP_ION_TILER_ALLOC,
+};
+
+/**
+ * These should match the defines in the tiler driver
+ */
+enum {
+        TILER_PIXEL_FMT_MIN   = 0,
+        TILER_PIXEL_FMT_8BIT  = 0,
+        TILER_PIXEL_FMT_16BIT = 1,
+        TILER_PIXEL_FMT_32BIT = 2,
+        TILER_PIXEL_FMT_PAGE  = 3,
+        TILER_PIXEL_FMT_MAX   = 3
+};
+
+/**
+ * List of heaps in the system
+ */
+enum {
+        OMAP_ION_HEAP_SYSTEM,
+        OMAP_ION_HEAP_TILER,
+        OMAP_ION_HEAP_SECURE_INPUT,
+        OMAP_ION_HEAP_NONSECURE_TILER,
+        OMAP_ION_HEAP_TILER_RESERVATION,
+};
+
+#endif /* _LINUX_ION_H */