Release 4.7 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 <drm/drmP.h>
#include "radeon.h"
#include <drm/radeon_drm.h>
#include <linux/dma-buf.h>
struct sg_table *radeon_gem_prime_get_sg_table(struct drm_gem_object *obj)
{
	struct radeon_bo *bo = gem_to_radeon_bo(obj);
	int npages = bo->tbo.num_pages;
	return drm_prime_pages_to_sg(bo->tbo.ttm->pages, npages);
}
Contributors
 | Person | Tokens | Prop | Commits | CommitProp | 
| alex deucher | alex deucher | 35 | 77.78% | 1 | 33.33% | 
| aaron plattner | aaron plattner | 8 | 17.78% | 1 | 33.33% | 
| dave airlie | dave airlie | 2 | 4.44% | 1 | 33.33% | 
 | Total | 45 | 100.00% | 3 | 100.00% | 
void *radeon_gem_prime_vmap(struct drm_gem_object *obj)
{
	struct radeon_bo *bo = gem_to_radeon_bo(obj);
	int ret;
	ret = ttm_bo_kmap(&bo->tbo, 0, bo->tbo.num_pages,
			  &bo->dma_buf_vmap);
	if (ret)
		return ERR_PTR(ret);
	return bo->dma_buf_vmap.virtual;
}
Contributors
 | Person | Tokens | Prop | Commits | CommitProp | 
| dave airlie | dave airlie | 58 | 90.62% | 1 | 50.00% | 
| aaron plattner | aaron plattner | 6 | 9.38% | 1 | 50.00% | 
 | Total | 64 | 100.00% | 2 | 100.00% | 
void radeon_gem_prime_vunmap(struct drm_gem_object *obj, void *vaddr)
{
	struct radeon_bo *bo = gem_to_radeon_bo(obj);
	ttm_bo_kunmap(&bo->dma_buf_vmap);
}
Contributors
 | Person | Tokens | Prop | Commits | CommitProp | 
| dave airlie | dave airlie | 24 | 75.00% | 1 | 50.00% | 
| aaron plattner | aaron plattner | 8 | 25.00% | 1 | 50.00% | 
 | Total | 32 | 100.00% | 2 | 100.00% | 
struct drm_gem_object *radeon_gem_prime_import_sg_table(struct drm_device *dev,
							struct dma_buf_attachment *attach,
							struct sg_table *sg)
{
	struct reservation_object *resv = attach->dmabuf->resv;
	struct radeon_device *rdev = dev->dev_private;
	struct radeon_bo *bo;
	int ret;
	ww_mutex_lock(&resv->lock, NULL);
	ret = radeon_bo_create(rdev, attach->dmabuf->size, PAGE_SIZE, false,
			       RADEON_GEM_DOMAIN_GTT, 0, sg, resv, &bo);
	ww_mutex_unlock(&resv->lock);
	if (ret)
		return ERR_PTR(ret);
	mutex_lock(&rdev->gem.mutex);
	list_add_tail(&bo->list, &rdev->gem.objects);
	mutex_unlock(&rdev->gem.mutex);
	return &bo->gem_base;
}
Contributors
 | Person | Tokens | Prop | Commits | CommitProp | 
| alex deucher | alex deucher | 93 | 63.27% | 1 | 20.00% | 
| maarten lankhorst | maarten lankhorst | 39 | 26.53% | 2 | 40.00% | 
| aaron plattner | aaron plattner | 13 | 8.84% | 1 | 20.00% | 
| michel danzer | michel danzer | 2 | 1.36% | 1 | 20.00% | 
 | Total | 147 | 100.00% | 5 | 100.00% | 
int radeon_gem_prime_pin(struct drm_gem_object *obj)
{
	struct radeon_bo *bo = gem_to_radeon_bo(obj);
	int ret = 0;
	ret = radeon_bo_reserve(bo, false);
	if (unlikely(ret != 0))
		return ret;
	/* pin buffer into GTT */
	ret = radeon_bo_pin(bo, RADEON_GEM_DOMAIN_GTT, NULL);
	radeon_bo_unreserve(bo);
	return ret;
}
Contributors
 | Person | Tokens | Prop | Commits | CommitProp | 
| alex deucher | alex deucher | 37 | 56.06% | 1 | 33.33% | 
| dave airlie | dave airlie | 27 | 40.91% | 1 | 33.33% | 
| aaron plattner | aaron plattner | 2 | 3.03% | 1 | 33.33% | 
 | Total | 66 | 100.00% | 3 | 100.00% | 
void radeon_gem_prime_unpin(struct drm_gem_object *obj)
{
	struct radeon_bo *bo = gem_to_radeon_bo(obj);
	int ret = 0;
	ret = radeon_bo_reserve(bo, false);
	if (unlikely(ret != 0))
		return;
	radeon_bo_unpin(bo);
	radeon_bo_unreserve(bo);
}
Contributors
 | Person | Tokens | Prop | Commits | CommitProp | 
| maarten lankhorst | maarten lankhorst | 48 | 88.89% | 1 | 25.00% | 
| dave airlie | dave airlie | 4 | 7.41% | 1 | 25.00% | 
| aaron plattner | aaron plattner | 1 | 1.85% | 1 | 25.00% | 
| alex deucher | alex deucher | 1 | 1.85% | 1 | 25.00% | 
 | Total | 54 | 100.00% | 4 | 100.00% | 
struct reservation_object *radeon_gem_prime_res_obj(struct drm_gem_object *obj)
{
	struct radeon_bo *bo = gem_to_radeon_bo(obj);
	return bo->tbo.resv;
}
Contributors
 | Person | Tokens | Prop | Commits | CommitProp | 
| maarten lankhorst | maarten lankhorst | 29 | 100.00% | 1 | 100.00% | 
 | Total | 29 | 100.00% | 1 | 100.00% | 
struct dma_buf *radeon_gem_prime_export(struct drm_device *dev,
					struct drm_gem_object *gobj,
					int flags)
{
	struct radeon_bo *bo = gem_to_radeon_bo(gobj);
	if (radeon_ttm_tt_has_userptr(bo->tbo.ttm))
		return ERR_PTR(-EPERM);
	return drm_gem_prime_export(dev, gobj, flags);
}
Contributors
 | Person | Tokens | Prop | Commits | CommitProp | 
| christian koenig | christian koenig | 58 | 100.00% | 1 | 100.00% | 
 | Total | 58 | 100.00% | 1 | 100.00% | 
Overall Contributors
 | Person | Tokens | Prop | Commits | CommitProp | 
| alex deucher | alex deucher | 174 | 34.25% | 1 | 8.33% | 
| maarten lankhorst | maarten lankhorst | 119 | 23.43% | 4 | 33.33% | 
| dave airlie | dave airlie | 115 | 22.64% | 3 | 25.00% | 
| christian koenig | christian koenig | 58 | 11.42% | 1 | 8.33% | 
| aaron plattner | aaron plattner | 38 | 7.48% | 1 | 8.33% | 
| michel danzer | michel danzer | 2 | 0.39% | 1 | 8.33% | 
| david howells | david howells | 2 | 0.39% | 1 | 8.33% | 
 | Total | 508 | 100.00% | 12 | 100.00% | 
  
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