drm/amdgpu/ttm: optimize vram access in amdgpu_ttm_access_memory()

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1. using vram aper to access vram if possible
2. avoid MM_INDEX/MM_DATA is not working when mmio protect feature is
enabled.

Signed-off-by: Kevin Wang <kevin1.wang@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

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Kevin Wang 2021-07-16 14:03:08 -04:00 • committed by Alex Deucher

parent 5fb95aa73f

commit 03373e2be2

1 changed files with 48 additions and 35 deletions

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drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c

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