cb5cc4f573e1 ("drm/amdgpu: improve debug VRAM access performance using sdma") 03373e2be290 ("drm/amdgpu/ttm: optimize vram access in amdgpu_ttm_access_memory()") d3116756a710 ("drm/ttm: rename bo->mem and make it a pointer") 9a91e5e0af5e ("Merge tag 'amd-drm-next-5.14-2021-05-21' of https://gitlab.freedesktop.org/agd5f/linux into drm-next")