diff options
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_prime.c')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/amdgpu_prime.c | 143 |
1 files changed, 0 insertions, 143 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_prime.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_prime.c deleted file mode 100644 index 6bdc866570ab..000000000000 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_prime.c +++ /dev/null @@ -1,143 +0,0 @@ -/* - * 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); -} - -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; -} - -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); -} - -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; -} - -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; -} - -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, true); - if (unlikely(ret != 0)) - return; - - amdgpu_bo_unpin(bo); - if (bo->prime_shared_count) - bo->prime_shared_count--; - amdgpu_bo_unreserve(bo); -} - -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; -} - -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); -} |
