linux/drivers/gpu/drm/radeon/radeon_prime.c

/*
 * Copyright 2012 Advanced Micro Devices, 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 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 COPYRIGHT HOLDER(S) OR AUTHOR(S) 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.
 *
 * based on nouveau_prime.c
 *
 * Authors: Alex Deucher
 */

#include <linux/dma-buf.h>

#include <drm/drm_prime.h>
#include <drm/radeon_drm.h>

#include <drm/ttm/ttm_tt.h>

#include "radeon.h"
#include "radeon_prime.h"

struct sg_table *radeon_gem_prime_get_sg_table(struct drm_gem_object *obj)
{ … }

struct drm_gem_object *radeon_gem_prime_import_sg_table(struct drm_device *dev,
							struct dma_buf_attachment *attach,
							struct sg_table *sg)
{ … }

int radeon_gem_prime_pin(struct drm_gem_object *obj)
{ … }

void radeon_gem_prime_unpin(struct drm_gem_object *obj)
{ … }


struct dma_buf *radeon_gem_prime_export(struct drm_gem_object *gobj,
					int flags)
{ … }