diff options
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c | 88 |
1 files changed, 79 insertions, 9 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c index 29c197c000..e785f12841 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c @@ -236,7 +236,7 @@ static int amdgpu_ttm_map_buffer(struct ttm_buffer_object *bo, dst_addr = amdgpu_bo_gpu_offset(adev->gart.bo); dst_addr += window * AMDGPU_GTT_MAX_TRANSFER_SIZE * 8; amdgpu_emit_copy_buffer(adev, &job->ibs[0], src_addr, - dst_addr, num_bytes, false); + dst_addr, num_bytes, 0); amdgpu_ring_pad_ib(ring, &job->ibs[0]); WARN_ON(job->ibs[0].length_dw > num_dw); @@ -296,6 +296,8 @@ int amdgpu_ttm_copy_mem_to_mem(struct amdgpu_device *adev, struct dma_fence *fence = NULL; int r = 0; + uint32_t copy_flags = 0; + if (!adev->mman.buffer_funcs_enabled) { DRM_ERROR("Trying to move memory with ring turned off.\n"); return -EINVAL; @@ -323,8 +325,11 @@ int amdgpu_ttm_copy_mem_to_mem(struct amdgpu_device *adev, if (r) goto error; - r = amdgpu_copy_buffer(ring, from, to, cur_size, - resv, &next, false, true, tmz); + if (tmz) + copy_flags |= AMDGPU_COPY_FLAGS_TMZ; + + r = amdgpu_copy_buffer(ring, from, to, cur_size, resv, + &next, false, true, copy_flags); if (r) goto error; @@ -378,11 +383,12 @@ static int amdgpu_move_blit(struct ttm_buffer_object *bo, (abo->flags & AMDGPU_GEM_CREATE_VRAM_WIPE_ON_RELEASE)) { struct dma_fence *wipe_fence = NULL; - r = amdgpu_fill_buffer(abo, AMDGPU_POISON, NULL, &wipe_fence, - false); + r = amdgpu_fill_buffer(abo, 0, NULL, &wipe_fence, + false); if (r) { goto error; } else if (wipe_fence) { + amdgpu_vram_mgr_set_cleared(bo->resource); dma_fence_put(fence); fence = wipe_fence; } @@ -1492,7 +1498,7 @@ static int amdgpu_ttm_access_memory_sdma(struct ttm_buffer_object *bo, swap(src_addr, dst_addr); amdgpu_emit_copy_buffer(adev, &job->ibs[0], src_addr, dst_addr, - PAGE_SIZE, false); + PAGE_SIZE, 0); amdgpu_ring_pad_ib(adev->mman.buffer_funcs_ring, &job->ibs[0]); WARN_ON(job->ibs[0].length_dw > num_dw); @@ -2143,7 +2149,7 @@ int amdgpu_copy_buffer(struct amdgpu_ring *ring, uint64_t src_offset, uint64_t dst_offset, uint32_t byte_count, struct dma_resv *resv, struct dma_fence **fence, bool direct_submit, - bool vm_needs_flush, bool tmz) + bool vm_needs_flush, uint32_t copy_flags) { struct amdgpu_device *adev = ring->adev; unsigned int num_loops, num_dw; @@ -2169,8 +2175,7 @@ int amdgpu_copy_buffer(struct amdgpu_ring *ring, uint64_t src_offset, uint32_t cur_size_in_bytes = min(byte_count, max_bytes); amdgpu_emit_copy_buffer(adev, &job->ibs[0], src_offset, - dst_offset, cur_size_in_bytes, tmz); - + dst_offset, cur_size_in_bytes, copy_flags); src_offset += cur_size_in_bytes; dst_offset += cur_size_in_bytes; byte_count -= cur_size_in_bytes; @@ -2230,6 +2235,71 @@ static int amdgpu_ttm_fill_mem(struct amdgpu_ring *ring, uint32_t src_data, return 0; } +/** + * amdgpu_ttm_clear_buffer - clear memory buffers + * @bo: amdgpu buffer object + * @resv: reservation object + * @fence: dma_fence associated with the operation + * + * Clear the memory buffer resource. + * + * Returns: + * 0 for success or a negative error code on failure. + */ +int amdgpu_ttm_clear_buffer(struct amdgpu_bo *bo, + struct dma_resv *resv, + struct dma_fence **fence) +{ + struct amdgpu_device *adev = amdgpu_ttm_adev(bo->tbo.bdev); + struct amdgpu_ring *ring = adev->mman.buffer_funcs_ring; + struct amdgpu_res_cursor cursor; + u64 addr; + int r; + + if (!adev->mman.buffer_funcs_enabled) + return -EINVAL; + + if (!fence) + return -EINVAL; + + *fence = dma_fence_get_stub(); + + amdgpu_res_first(bo->tbo.resource, 0, amdgpu_bo_size(bo), &cursor); + + mutex_lock(&adev->mman.gtt_window_lock); + while (cursor.remaining) { + struct dma_fence *next = NULL; + u64 size; + + if (amdgpu_res_cleared(&cursor)) { + amdgpu_res_next(&cursor, cursor.size); + continue; + } + + /* Never clear more than 256MiB at once to avoid timeouts */ + size = min(cursor.size, 256ULL << 20); + + r = amdgpu_ttm_map_buffer(&bo->tbo, bo->tbo.resource, &cursor, + 1, ring, false, &size, &addr); + if (r) + goto err; + + r = amdgpu_ttm_fill_mem(ring, 0, addr, size, resv, + &next, true, true); + if (r) + goto err; + + dma_fence_put(*fence); + *fence = next; + + amdgpu_res_next(&cursor, size); + } +err: + mutex_unlock(&adev->mman.gtt_window_lock); + + return r; +} + int amdgpu_fill_buffer(struct amdgpu_bo *bo, uint32_t src_data, struct dma_resv *resv, |