Use shadow flag to judge which direction to sync. V2: Don't need bo pin, so remove it.
Change-Id: I9b540970d3a24c6aebeaa94c99f66a89134c663d Signed-off-by: Chunming Zhou <[email protected]> --- drivers/gpu/drm/amd/amdgpu/amdgpu_object.c | 43 ++++++++++++++++++++++++++++++ drivers/gpu/drm/amd/amdgpu/amdgpu_object.h | 5 ++++ 2 files changed, 48 insertions(+) diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_object.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_object.c index 278017d..b517848 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_object.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_object.c @@ -443,6 +443,49 @@ int amdgpu_bo_create(struct amdgpu_device *adev, return r; } +int amdgpu_bo_backup_shadow(struct amdgpu_device *adev, + struct amdgpu_ring *ring, + struct amdgpu_bo *bo, + struct reservation_object *resv, + struct fence **fence, + bool direct) + +{ + struct amdgpu_bo *shadow = bo->shadow; + uint64_t bo_addr, shadow_addr; + int r; + + if (!shadow) + return -EINVAL; + + if (bo->backup_shadow == AMDGPU_BO_SHADOW_TO_NONE) { + DRM_INFO("No need to backup bo and shadow\n"); + return 0; + } + bo_addr = amdgpu_bo_gpu_offset(bo); + shadow_addr = amdgpu_bo_gpu_offset(bo->shadow); + + r = reservation_object_reserve_shared(bo->tbo.resv); + if (r) + goto err; + + if (bo->backup_shadow & AMDGPU_BO_SHADOW_TO_PARENT) + r = amdgpu_copy_buffer(ring, shadow_addr, bo_addr, + amdgpu_bo_size(bo), resv, fence, + direct); + else + r = amdgpu_copy_buffer(ring, bo_addr, shadow_addr, + amdgpu_bo_size(bo), resv, fence, + direct); + if (!r) { + amdgpu_bo_fence(bo, *fence, true); + bo->backup_shadow = AMDGPU_BO_SHADOW_TO_NONE; + } +err: + + return r; +} + int amdgpu_bo_kmap(struct amdgpu_bo *bo, void **ptr) { bool is_iomem; diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_object.h b/drivers/gpu/drm/amd/amdgpu/amdgpu_object.h index d650b42..bb076d0 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_object.h +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_object.h @@ -155,6 +155,11 @@ int amdgpu_bo_fault_reserve_notify(struct ttm_buffer_object *bo); void amdgpu_bo_fence(struct amdgpu_bo *bo, struct fence *fence, bool shared); u64 amdgpu_bo_gpu_offset(struct amdgpu_bo *bo); +int amdgpu_bo_backup_shadow(struct amdgpu_device *adev, + struct amdgpu_ring *ring, + struct amdgpu_bo *bo, + struct reservation_object *resv, + struct fence **fence, bool direct); /* * sub allocation -- 1.9.1 _______________________________________________ amd-gfx mailing list [email protected] https://lists.freedesktop.org/mailman/listinfo/amd-gfx
