Release 4.11 drivers/gpu/drm/amd/amdgpu/amdgpu_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 "amdgpu.h"
#include <drm/amdgpu_drm.h>
#include <linux/dma-buf.h>
struct sg_table *amdgpu_gem_prime_get_sg_table(struct drm_gem_object *obj)
{
struct amdgpu_bo *bo = gem_to_amdgpu_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 | 45 | 100.00% | 1 | 100.00% |
| Total | 45 | 100.00% | 1 | 100.00% |
void *amdgpu_gem_prime_vmap(struct drm_gem_object *obj)
{
struct amdgpu_bo *bo = gem_to_amdgpu_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 |
| Alex Deucher | 64 | 100.00% | 1 | 100.00% |
| Total | 64 | 100.00% | 1 | 100.00% |
void amdgpu_gem_prime_vunmap(struct drm_gem_object *obj, void *vaddr)
{
struct amdgpu_bo *bo = gem_to_amdgpu_bo(obj);
ttm_bo_kunmap(&bo->dma_buf_vmap);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Alex Deucher | 32 | 100.00% | 1 | 100.00% |
| Total | 32 | 100.00% | 1 | 100.00% |
struct drm_gem_object *
amdgpu_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 amdgpu_device *adev = dev->dev_private;
struct amdgpu_bo *bo;
int ret;
ww_mutex_lock(&resv->lock, NULL);
ret = amdgpu_bo_create(adev, attach->dmabuf->size, PAGE_SIZE, false,
AMDGPU_GEM_DOMAIN_GTT, 0, sg, resv, &bo);
ww_mutex_unlock(&resv->lock);
if (ret)
return ERR_PTR(ret);
bo->prime_shared_count = 1;
return &bo->gem_base;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Alex Deucher | 81 | 68.64% | 1 | 33.33% |
| Christian König | 31 | 26.27% | 1 | 33.33% |
| Mario Kleiner | 6 | 5.08% | 1 | 33.33% |
| Total | 118 | 100.00% | 3 | 100.00% |
int amdgpu_gem_prime_pin(struct drm_gem_object *obj)
{
struct amdgpu_bo *bo = gem_to_amdgpu_bo(obj);
long ret = 0;
ret = amdgpu_bo_reserve(bo, false);
if (unlikely(ret != 0))
return ret;
/*
* Wait for all shared fences to complete before we switch to future
* use of exclusive fence on this prime shared bo.
*/
ret = reservation_object_wait_timeout_rcu(bo->tbo.resv, true, false,
MAX_SCHEDULE_TIMEOUT);
if (unlikely(ret < 0)) {
DRM_DEBUG_PRIME("Fence wait failed: %li\n", ret);
amdgpu_bo_unreserve(bo);
return ret;
}
/* pin buffer into GTT */
ret = amdgpu_bo_pin(bo, AMDGPU_GEM_DOMAIN_GTT, NULL);
if (likely(ret == 0))
bo->prime_shared_count++;
amdgpu_bo_unreserve(bo);
return ret;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Alex Deucher | 65 | 52.42% | 1 | 50.00% |
| Mario Kleiner | 59 | 47.58% | 1 | 50.00% |
| Total | 124 | 100.00% | 2 | 100.00% |
void amdgpu_gem_prime_unpin(struct drm_gem_object *obj)
{
struct amdgpu_bo *bo = gem_to_amdgpu_bo(obj);
int ret = 0;
ret = amdgpu_bo_reserve(bo, false);
if (unlikely(ret != 0))
return;
amdgpu_bo_unpin(bo);
if (bo->prime_shared_count)
bo->prime_shared_count--;
amdgpu_bo_unreserve(bo);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Alex Deucher | 54 | 83.08% | 1 | 50.00% |
| Mario Kleiner | 11 | 16.92% | 1 | 50.00% |
| Total | 65 | 100.00% | 2 | 100.00% |
struct reservation_object *amdgpu_gem_prime_res_obj(struct drm_gem_object *obj)
{
struct amdgpu_bo *bo = gem_to_amdgpu_bo(obj);
return bo->tbo.resv;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Alex Deucher | 29 | 100.00% | 1 | 100.00% |
| Total | 29 | 100.00% | 1 | 100.00% |
struct dma_buf *amdgpu_gem_prime_export(struct drm_device *dev,
struct drm_gem_object *gobj,
int flags)
{
struct amdgpu_bo *bo = gem_to_amdgpu_bo(gobj);
if (amdgpu_ttm_tt_get_usermm(bo->tbo.ttm))
return ERR_PTR(-EPERM);
return drm_gem_prime_export(dev, gobj, flags);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Alex Deucher | 57 | 98.28% | 1 | 50.00% |
| Christian König | 1 | 1.72% | 1 | 50.00% |
| Total | 58 | 100.00% | 2 | 100.00% |
Overall Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Alex Deucher | 440 | 80.29% | 1 | 25.00% |
| Mario Kleiner | 76 | 13.87% | 1 | 25.00% |
| Christian König | 32 | 5.84% | 2 | 50.00% |
| Total | 548 | 100.00% | 4 | 100.00% |
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