Merge tag 'v5.3-rc3' into drm-next-5.4
[sfrench/cifs-2.6.git] / drivers / gpu / drm / amd / amdgpu / amdgpu_ttm.c
index e51b48ac48eb151fcf72d11a4bdf15b9a06dda0e..ab92b24ac4ff43503decdac2e7ab9a9ff028c706 100644 (file)
@@ -444,6 +444,22 @@ static int amdgpu_move_blit(struct ttm_buffer_object *bo,
        if (r)
                goto error;
 
+       /* clear the space being freed */
+       if (old_mem->mem_type == TTM_PL_VRAM &&
+           (ttm_to_amdgpu_bo(bo)->flags &
+            AMDGPU_GEM_CREATE_VRAM_WIPE_ON_RELEASE)) {
+               struct dma_fence *wipe_fence = NULL;
+
+               r = amdgpu_fill_buffer(ttm_to_amdgpu_bo(bo), AMDGPU_POISON,
+                                      NULL, &wipe_fence);
+               if (r) {
+                       goto error;
+               } else if (wipe_fence) {
+                       dma_fence_put(fence);
+                       fence = wipe_fence;
+               }
+       }
+
        /* Always block for VM page tables before committing the new location */
        if (bo->type == ttm_bo_type_kernel)
                r = ttm_bo_move_accel_cleanup(bo, fence, true, new_mem);
@@ -1599,6 +1615,7 @@ static struct ttm_bo_driver amdgpu_bo_driver = {
        .move = &amdgpu_bo_move,
        .verify_access = &amdgpu_verify_access,
        .move_notify = &amdgpu_bo_move_notify,
+       .release_notify = &amdgpu_bo_release_notify,
        .fault_reserve_notify = &amdgpu_bo_fault_reserve_notify,
        .io_mem_reserve = &amdgpu_ttm_io_mem_reserve,
        .io_mem_free = &amdgpu_ttm_io_mem_free,