Adding upstream version 2.4.114.upstream/2.4.114upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

7 files changed, 771 insertions, 0 deletions

diff --git a/omap/Android.mk b/omap/Android.mk
new file mode 100644
index 0000000..b25cca1
--- /dev/null
+++ b/omap/Android.mk
@@ -0,0 +1,13 @@
+LOCAL_PATH := $(call my-dir)
+include $(CLEAR_VARS)
+
+LOCAL_MODULE := libdrm_omap
+LOCAL_VENDOR_MODULE := true
+
+LOCAL_SRC_FILES := omap_drm.c
+
+LOCAL_SHARED_LIBRARIES := libdrm
+
+include $(LIBDRM_COMMON_MK)
+
+include $(BUILD_SHARED_LIBRARY)
diff --git a/omap/libdrm_omap.pc.in b/omap/libdrm_omap.pc.in
new file mode 100644
index 0000000..024533b
--- /dev/null
+++ b/omap/libdrm_omap.pc.in
@@ -0,0 +1,11 @@
+prefix=@prefix@
+exec_prefix=@exec_prefix@
+libdir=@libdir@
+includedir=@includedir@
+
+Name: libdrm_omap
+Description: Userspace interface to omap kernel DRM services
+Version: 0.6
+Libs: -L${libdir} -ldrm_omap
+Cflags: -I${includedir} -I${includedir}/libdrm -I${includedir}/omap
+Requires.private: libdrm
diff --git a/omap/meson.build b/omap/meson.build
new file mode 100644
index 0000000..2215918
--- /dev/null
+++ b/omap/meson.build
@@ -0,0 +1,61 @@
+# Copyright © 2017 Intel 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.
+
+libdrm_omap = library(
+  'drm_omap',
+  [files('omap_drm.c'), config_file],
+  include_directories : [inc_root, inc_drm],
+  c_args : libdrm_c_args,
+  gnu_symbol_visibility : 'hidden',
+  link_with : libdrm,
+  dependencies : [dep_pthread_stubs, dep_atomic_ops],
+  version : '1.0.0',
+  install : true,
+)
+
+ext_libdrm_omap = declare_dependency(
+  link_with : [libdrm, libdrm_omap],
+  include_directories : [inc_drm, include_directories('.')],
+)
+
+if meson.version().version_compare('>= 0.54.0')
+  meson.override_dependency('libdrm_omap', ext_libdrm_omap)
+endif
+
+install_headers('omap_drmif.h', subdir : 'libdrm')
+install_headers('omap_drm.h', subdir : 'omap')
+
+pkg.generate(
+  libdrm_omap,
+  name : 'libdrm_omap',
+  subdirs : ['.', 'libdrm', 'omap'],
+  version : '0.6',
+  description : 'Userspace interface to omap kernel DRM services',
+)
+
+test(
+  'omap-symbols-check',
+  symbols_check,
+  args : [
+    '--lib', libdrm_omap,
+    '--symbols-file', files('omap-symbols.txt'),
+    '--nm', prog_nm.path(),
+  ],
+)
diff --git a/omap/omap-symbols.txt b/omap/omap-symbols.txt
new file mode 100644
index 0000000..749d0f7
--- /dev/null
+++ b/omap/omap-symbols.txt
@@ -0,0 +1,18 @@
+omap_bo_cpu_fini
+omap_bo_cpu_prep
+omap_bo_del
+omap_bo_dmabuf
+omap_bo_from_dmabuf
+omap_bo_from_name
+omap_bo_get_name
+omap_bo_handle
+omap_bo_map
+omap_bo_new
+omap_bo_new_tiled
+omap_bo_ref
+omap_bo_size
+omap_device_del
+omap_device_new
+omap_device_ref
+omap_get_param
+omap_set_param
diff --git a/omap/omap_drm.c b/omap/omap_drm.c
new file mode 100644
index 0000000..aa27366
--- /dev/null
+++ b/omap/omap_drm.c
@@ -0,0 +1,468 @@
+/* -*- mode: C; c-file-style: "k&r"; tab-width 4; indent-tabs-mode: t; -*- */
+
+/*
+ * Copyright (C) 2011 Texas Instruments, Inc
+ *
+ * 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:
+ *    Rob Clark <rob@ti.com>
+ */
+
+#include <stdlib.h>
+#include <linux/stddef.h>
+#include <linux/types.h>
+#include <errno.h>
+#include <sys/mman.h>
+#include <fcntl.h>
+#include <unistd.h>
+#include <pthread.h>
+
+#include <libdrm_macros.h>
+#include <xf86drm.h>
+#include <xf86atomic.h>
+
+#include "omap_drm.h"
+#include "omap_drmif.h"
+
+#define __round_mask(x, y) ((__typeof__(x))((y)-1))
+#define round_up(x, y) ((((x)-1) | __round_mask(x, y))+1)
+#define PAGE_SIZE 4096
+
+static pthread_mutex_t table_lock = PTHREAD_MUTEX_INITIALIZER;
+static void * dev_table;
+
+struct omap_device {
+	int fd;
+	atomic_t refcnt;
+
+	/* The handle_table is used to track GEM bo handles associated w/
+	 * this fd.  This is needed, in particular, when importing
+	 * dmabuf's because we don't want multiple 'struct omap_bo's
+	 * floating around with the same handle.  Otherwise, when the
+	 * first one is omap_bo_del()'d the handle becomes no longer
+	 * valid, and the remaining 'struct omap_bo's are left pointing
+	 * to an invalid handle (and possible a GEM bo that is already
+	 * free'd).
+	 */
+	void *handle_table;
+};
+
+/* a GEM buffer object allocated from the DRM device */
+struct omap_bo {
+	struct omap_device	*dev;
+	void		*map;		/* userspace mmap'ing (if there is one) */
+	uint32_t	size;
+	uint32_t	handle;
+	uint32_t	name;		/* flink global handle (DRI2 name) */
+	uint64_t	offset;		/* offset to mmap() */
+	int		fd;		/* dmabuf handle */
+	atomic_t	refcnt;
+};
+
+static struct omap_device * omap_device_new_impl(int fd)
+{
+	struct omap_device *dev = calloc(sizeof(*dev), 1);
+	if (!dev)
+		return NULL;
+	dev->fd = fd;
+	atomic_set(&dev->refcnt, 1);
+	dev->handle_table = drmHashCreate();
+	return dev;
+}
+
+drm_public struct omap_device * omap_device_new(int fd)
+{
+	struct omap_device *dev = NULL;
+
+	pthread_mutex_lock(&table_lock);
+
+	if (!dev_table)
+		dev_table = drmHashCreate();
+
+	if (drmHashLookup(dev_table, fd, (void **)&dev)) {
+		/* not found, create new device */
+		dev = omap_device_new_impl(fd);
+		drmHashInsert(dev_table, fd, dev);
+	} else {
+		/* found, just incr refcnt */
+		dev = omap_device_ref(dev);
+	}
+
+	pthread_mutex_unlock(&table_lock);
+
+	return dev;
+}
+
+drm_public struct omap_device * omap_device_ref(struct omap_device *dev)
+{
+	atomic_inc(&dev->refcnt);
+	return dev;
+}
+
+drm_public void omap_device_del(struct omap_device *dev)
+{
+	if (!atomic_dec_and_test(&dev->refcnt))
+		return;
+	pthread_mutex_lock(&table_lock);
+	drmHashDestroy(dev->handle_table);
+	drmHashDelete(dev_table, dev->fd);
+	pthread_mutex_unlock(&table_lock);
+	free(dev);
+}
+
+drm_public int
+omap_get_param(struct omap_device *dev, uint64_t param, uint64_t *value)
+{
+	struct drm_omap_param req = {
+			.param = param,
+	};
+	int ret;
+
+	ret = drmCommandWriteRead(dev->fd, DRM_OMAP_GET_PARAM, &req, sizeof(req));
+	if (ret) {
+		return ret;
+	}
+
+	*value = req.value;
+
+	return 0;
+}
+
+drm_public int
+omap_set_param(struct omap_device *dev, uint64_t param, uint64_t value)
+{
+	struct drm_omap_param req = {
+			.param = param,
+			.value = value,
+	};
+	return drmCommandWrite(dev->fd, DRM_OMAP_SET_PARAM, &req, sizeof(req));
+}
+
+/* lookup a buffer from it's handle, call w/ table_lock held: */
+static struct omap_bo * lookup_bo(struct omap_device *dev,
+		uint32_t handle)
+{
+	struct omap_bo *bo = NULL;
+	if (!drmHashLookup(dev->handle_table, handle, (void **)&bo)) {
+		/* found, incr refcnt and return: */
+		bo = omap_bo_ref(bo);
+	}
+	return bo;
+}
+
+/* allocate a new buffer object, call w/ table_lock held */
+static struct omap_bo * bo_from_handle(struct omap_device *dev,
+		uint32_t handle)
+{
+	struct omap_bo *bo = calloc(sizeof(*bo), 1);
+	if (!bo) {
+		drmCloseBufferHandle(dev->fd, handle);
+		return NULL;
+	}
+	bo->dev = omap_device_ref(dev);
+	bo->handle = handle;
+	bo->fd = -1;
+	atomic_set(&bo->refcnt, 1);
+	/* add ourselves to the handle table: */
+	drmHashInsert(dev->handle_table, handle, bo);
+	return bo;
+}
+
+/* allocate a new buffer object */
+static struct omap_bo * omap_bo_new_impl(struct omap_device *dev,
+		union omap_gem_size size, uint32_t flags)
+{
+	struct omap_bo *bo = NULL;
+	struct drm_omap_gem_new req = {
+			.size = size,
+			.flags = flags,
+	};
+
+	if (size.bytes == 0) {
+		goto fail;
+	}
+
+	if (drmCommandWriteRead(dev->fd, DRM_OMAP_GEM_NEW, &req, sizeof(req))) {
+		goto fail;
+	}
+
+	pthread_mutex_lock(&table_lock);
+	bo = bo_from_handle(dev, req.handle);
+	pthread_mutex_unlock(&table_lock);
+
+	if (flags & OMAP_BO_TILED) {
+		bo->size = round_up(size.tiled.width, PAGE_SIZE) * size.tiled.height;
+	} else {
+		bo->size = size.bytes;
+	}
+
+	return bo;
+
+fail:
+	free(bo);
+	return NULL;
+}
+
+
+/* allocate a new (un-tiled) buffer object */
+drm_public struct omap_bo *
+omap_bo_new(struct omap_device *dev, uint32_t size, uint32_t flags)
+{
+	union omap_gem_size gsize = {
+			.bytes = size,
+	};
+	if (flags & OMAP_BO_TILED) {
+		return NULL;
+	}
+	return omap_bo_new_impl(dev, gsize, flags);
+}
+
+/* allocate a new buffer object */
+drm_public struct omap_bo *
+omap_bo_new_tiled(struct omap_device *dev, uint32_t width,
+		  uint32_t height, uint32_t flags)
+{
+	union omap_gem_size gsize = {
+			.tiled = {
+				.width = width,
+				.height = height,
+			},
+	};
+	if (!(flags & OMAP_BO_TILED)) {
+		return NULL;
+	}
+	return omap_bo_new_impl(dev, gsize, flags);
+}
+
+drm_public struct omap_bo *omap_bo_ref(struct omap_bo *bo)
+{
+	atomic_inc(&bo->refcnt);
+	return bo;
+}
+
+/* get buffer info */
+static int get_buffer_info(struct omap_bo *bo)
+{
+	struct drm_omap_gem_info req = {
+			.handle = bo->handle,
+	};
+	int ret = drmCommandWriteRead(bo->dev->fd, DRM_OMAP_GEM_INFO,
+			&req, sizeof(req));
+	if (ret) {
+		return ret;
+	}
+
+	/* really all we need for now is mmap offset */
+	bo->offset = req.offset;
+	bo->size = req.size;
+
+	return 0;
+}
+
+/* import a buffer object from DRI2 name */
+drm_public struct omap_bo *
+omap_bo_from_name(struct omap_device *dev, uint32_t name)
+{
+	struct omap_bo *bo = NULL;
+	struct drm_gem_open req = {
+			.name = name,
+	};
+
+	pthread_mutex_lock(&table_lock);
+
+	if (drmIoctl(dev->fd, DRM_IOCTL_GEM_OPEN, &req)) {
+		goto fail;
+	}
+
+	bo = lookup_bo(dev, req.handle);
+	if (!bo) {
+		bo = bo_from_handle(dev, req.handle);
+		bo->name = name;
+	}
+
+	pthread_mutex_unlock(&table_lock);
+
+	return bo;
+
+fail:
+	pthread_mutex_unlock(&table_lock);
+	free(bo);
+	return NULL;
+}
+
+/* import a buffer from dmabuf fd, does not take ownership of the
+ * fd so caller should close() the fd when it is otherwise done
+ * with it (even if it is still using the 'struct omap_bo *')
+ */
+drm_public struct omap_bo *
+omap_bo_from_dmabuf(struct omap_device *dev, int fd)
+{
+	struct omap_bo *bo = NULL;
+	struct drm_prime_handle req = {
+			.fd = fd,
+	};
+	int ret;
+
+	pthread_mutex_lock(&table_lock);
+
+	ret = drmIoctl(dev->fd, DRM_IOCTL_PRIME_FD_TO_HANDLE, &req);
+	if (ret) {
+		goto fail;
+	}
+
+	bo = lookup_bo(dev, req.handle);
+	if (!bo) {
+		bo = bo_from_handle(dev, req.handle);
+	}
+
+	pthread_mutex_unlock(&table_lock);
+
+	return bo;
+
+fail:
+	pthread_mutex_unlock(&table_lock);
+	free(bo);
+	return NULL;
+}
+
+/* destroy a buffer object */
+drm_public void omap_bo_del(struct omap_bo *bo)
+{
+	if (!bo) {
+		return;
+	}
+
+	if (!atomic_dec_and_test(&bo->refcnt))
+		return;
+
+	if (bo->map) {
+		munmap(bo->map, bo->size);
+	}
+
+	if (bo->fd >= 0) {
+		close(bo->fd);
+	}
+
+	if (bo->handle) {
+		pthread_mutex_lock(&table_lock);
+		drmHashDelete(bo->dev->handle_table, bo->handle);
+		drmCloseBufferHandle(bo->dev->fd, bo->handle);
+		pthread_mutex_unlock(&table_lock);
+	}
+
+	omap_device_del(bo->dev);
+
+	free(bo);
+}
+
+/* get the global flink/DRI2 buffer name */
+drm_public int omap_bo_get_name(struct omap_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) {
+			return ret;
+		}
+
+		bo->name = req.name;
+	}
+
+	*name = bo->name;
+
+	return 0;
+}
+
+drm_public uint32_t omap_bo_handle(struct omap_bo *bo)
+{
+	return bo->handle;
+}
+
+/* caller owns the dmabuf fd that is returned and is responsible
+ * to close() it when done
+ */
+drm_public int omap_bo_dmabuf(struct omap_bo *bo)
+{
+	if (bo->fd < 0) {
+		struct drm_prime_handle req = {
+				.handle = bo->handle,
+				.flags = DRM_CLOEXEC | DRM_RDWR,
+		};
+		int ret;
+
+		ret = drmIoctl(bo->dev->fd, DRM_IOCTL_PRIME_HANDLE_TO_FD, &req);
+		if (ret) {
+			return ret;
+		}
+
+		bo->fd = req.fd;
+	}
+	return dup(bo->fd);
+}
+
+drm_public uint32_t omap_bo_size(struct omap_bo *bo)
+{
+	if (!bo->size) {
+		get_buffer_info(bo);
+	}
+	return bo->size;
+}
+
+drm_public void *omap_bo_map(struct omap_bo *bo)
+{
+	if (!bo->map) {
+		if (!bo->offset) {
+			get_buffer_info(bo);
+		}
+
+		bo->map = mmap(0, bo->size, PROT_READ | PROT_WRITE,
+				MAP_SHARED, bo->dev->fd, bo->offset);
+		if (bo->map == MAP_FAILED) {
+			bo->map = NULL;
+		}
+	}
+	return bo->map;
+}
+
+drm_public int omap_bo_cpu_prep(struct omap_bo *bo, enum omap_gem_op op)
+{
+	struct drm_omap_gem_cpu_prep req = {
+			.handle = bo->handle,
+			.op = op,
+	};
+	return drmCommandWrite(bo->dev->fd,
+			DRM_OMAP_GEM_CPU_PREP, &req, sizeof(req));
+}
+
+drm_public int omap_bo_cpu_fini(struct omap_bo *bo, enum omap_gem_op op)
+{
+	struct drm_omap_gem_cpu_fini req = {
+			.handle = bo->handle,
+			.op = op,
+			.nregions = 0,
+	};
+	return drmCommandWrite(bo->dev->fd,
+			DRM_OMAP_GEM_CPU_FINI, &req, sizeof(req));
+}
diff --git a/omap/omap_drm.h b/omap/omap_drm.h
new file mode 100644
index 0000000..9c6c0e4
--- /dev/null
+++ b/omap/omap_drm.h
@@ -0,0 +1,135 @@
+/* -*- mode: C; c-file-style: "k&r"; tab-width 4; indent-tabs-mode: t; -*- */
+
+/*
+ * Copyright (C) 2011 Texas Instruments, Inc
+ *
+ * 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:
+ *    Rob Clark <rob@ti.com>
+ */
+
+#ifndef __OMAP_DRM_H__
+#define __OMAP_DRM_H__
+
+#include <stdint.h>
+#include <drm.h>
+
+/* Please note that modifications to all structs defined here are
+ * subject to backwards-compatibility constraints.
+ */
+
+#define OMAP_PARAM_CHIPSET_ID	1	/* ie. 0x3430, 0x4430, etc */
+
+struct drm_omap_param {
+	uint64_t param;			/* in */
+	uint64_t value;			/* in (set_param), out (get_param) */
+};
+
+struct drm_omap_get_base {
+	char plugin_name[64];		/* in */
+	uint32_t ioctl_base;		/* out */
+	uint32_t __pad;
+};
+
+#define OMAP_BO_SCANOUT		0x00000001	/* scanout capable (phys contiguous) */
+#define OMAP_BO_CACHE_MASK	0x00000006	/* cache type mask, see cache modes */
+#define OMAP_BO_TILED_MASK	0x00000f00	/* tiled mapping mask, see tiled modes */
+
+/* cache modes */
+#define OMAP_BO_CACHED		0x00000000	/* default */
+#define OMAP_BO_WC		0x00000002	/* write-combine */
+#define OMAP_BO_UNCACHED	0x00000004	/* strongly-ordered (uncached) */
+
+/* tiled modes */
+#define OMAP_BO_TILED_8		0x00000100
+#define OMAP_BO_TILED_16	0x00000200
+#define OMAP_BO_TILED_32	0x00000300
+#define OMAP_BO_TILED		(OMAP_BO_TILED_8 | OMAP_BO_TILED_16 | OMAP_BO_TILED_32)
+
+union omap_gem_size {
+	uint32_t bytes;		/* (for non-tiled formats) */
+	struct {
+		uint16_t width;
+		uint16_t height;
+	} tiled;		/* (for tiled formats) */
+};
+
+struct drm_omap_gem_new {
+	union omap_gem_size size;	/* in */
+	uint32_t flags;			/* in */
+	uint32_t handle;		/* out */
+	uint32_t __pad;
+};
+
+/* mask of operations: */
+enum omap_gem_op {
+	OMAP_GEM_READ = 0x01,
+	OMAP_GEM_WRITE = 0x02,
+};
+
+struct drm_omap_gem_cpu_prep {
+	uint32_t handle;		/* buffer handle (in) */
+	uint32_t op;			/* mask of omap_gem_op (in) */
+};
+
+struct drm_omap_gem_cpu_fini {
+	uint32_t handle;		/* buffer handle (in) */
+	uint32_t op;			/* mask of omap_gem_op (in) */
+	/* TODO maybe here we pass down info about what regions are touched
+	 * by sw so we can be clever about cache ops?  For now a placeholder,
+	 * set to zero and we just do full buffer flush..
+	 */
+	uint32_t nregions;
+	uint32_t __pad;
+};
+
+struct drm_omap_gem_info {
+	uint32_t handle;		/* buffer handle (in) */
+	uint32_t pad;
+	uint64_t offset;		/* mmap offset (out) */
+	/* note: in case of tiled buffers, the user virtual size can be
+	 * different from the physical size (ie. how many pages are needed
+	 * to back the object) which is returned in DRM_IOCTL_GEM_OPEN..
+	 * This size here is the one that should be used if you want to
+	 * mmap() the buffer:
+	 */
+	uint32_t size;			/* virtual size for mmap'ing (out) */
+	uint32_t __pad;
+};
+
+#define DRM_OMAP_GET_PARAM		0x00
+#define DRM_OMAP_SET_PARAM		0x01
+#define DRM_OMAP_GET_BASE		0x02
+#define DRM_OMAP_GEM_NEW		0x03
+#define DRM_OMAP_GEM_CPU_PREP		0x04
+#define DRM_OMAP_GEM_CPU_FINI		0x05
+#define DRM_OMAP_GEM_INFO		0x06
+#define DRM_OMAP_NUM_IOCTLS		0x07
+
+#define DRM_IOCTL_OMAP_GET_PARAM	DRM_IOWR(DRM_COMMAND_BASE + DRM_OMAP_GET_PARAM, struct drm_omap_param)
+#define DRM_IOCTL_OMAP_SET_PARAM	DRM_IOW (DRM_COMMAND_BASE + DRM_OMAP_SET_PARAM, struct drm_omap_param)
+#define DRM_IOCTL_OMAP_GET_BASE		DRM_IOWR(DRM_COMMAND_BASE + DRM_OMAP_GET_BASE, struct drm_omap_get_base)
+#define DRM_IOCTL_OMAP_GEM_NEW		DRM_IOWR(DRM_COMMAND_BASE + DRM_OMAP_GEM_NEW, struct drm_omap_gem_new)
+#define DRM_IOCTL_OMAP_GEM_CPU_PREP	DRM_IOW (DRM_COMMAND_BASE + DRM_OMAP_GEM_CPU_PREP, struct drm_omap_gem_cpu_prep)
+#define DRM_IOCTL_OMAP_GEM_CPU_FINI	DRM_IOW (DRM_COMMAND_BASE + DRM_OMAP_GEM_CPU_FINI, struct drm_omap_gem_cpu_fini)
+#define DRM_IOCTL_OMAP_GEM_INFO		DRM_IOWR(DRM_COMMAND_BASE + DRM_OMAP_GEM_INFO, struct drm_omap_gem_info)
+
+#endif /* __OMAP_DRM_H__ */
diff --git a/omap/omap_drmif.h b/omap/omap_drmif.h
new file mode 100644
index 0000000..e62d127
--- /dev/null
+++ b/omap/omap_drmif.h
@@ -0,0 +1,65 @@
+/*
+ * Copyright (C) 2011 Texas Instruments, Inc
+ *
+ * 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:
+ *    Rob Clark <rob@ti.com>
+ */
+
+#ifndef OMAP_DRMIF_H_
+#define OMAP_DRMIF_H_
+
+#include <xf86drm.h>
+#include <stdint.h>
+#include <omap_drm.h>
+
+struct omap_bo;
+struct omap_device;
+
+/* device related functions:
+ */
+
+struct omap_device * omap_device_new(int fd);
+struct omap_device * omap_device_ref(struct omap_device *dev);
+void omap_device_del(struct omap_device *dev);
+int omap_get_param(struct omap_device *dev, uint64_t param, uint64_t *value);
+int omap_set_param(struct omap_device *dev, uint64_t param, uint64_t value);
+
+/* buffer-object related functions:
+ */
+
+struct omap_bo * omap_bo_new(struct omap_device *dev,
+		uint32_t size, uint32_t flags);
+struct omap_bo * omap_bo_new_tiled(struct omap_device *dev,
+		uint32_t width, uint32_t height, uint32_t flags);
+struct omap_bo * omap_bo_ref(struct omap_bo *bo);
+struct omap_bo * omap_bo_from_name(struct omap_device *dev, uint32_t name);
+struct omap_bo * omap_bo_from_dmabuf(struct omap_device *dev, int fd);
+void omap_bo_del(struct omap_bo *bo);
+int omap_bo_get_name(struct omap_bo *bo, uint32_t *name);
+uint32_t omap_bo_handle(struct omap_bo *bo);
+int omap_bo_dmabuf(struct omap_bo *bo);
+uint32_t omap_bo_size(struct omap_bo *bo);
+void * omap_bo_map(struct omap_bo *bo);
+int omap_bo_cpu_prep(struct omap_bo *bo, enum omap_gem_op op);
+int omap_bo_cpu_fini(struct omap_bo *bo, enum omap_gem_op op);
+
+#endif /* OMAP_DRMIF_H_ */