Commit 91b59005 authored by Oak Zeng's avatar Oak Zeng Committed by Alex Deucher

drm/amdgpu: Add comment to function amdgpu_ttm_alloc_gart

Add comments to refect what function does
Signed-off-by: default avatarOak Zeng <Oak.Zeng@amd.com>
Reviewed-by: default avatarChristian Konig <christian.koenig@amd.com>
Signed-off-by: default avatarAlex Deucher <alexander.deucher@amd.com>
parent ce87c98d
...@@ -1155,7 +1155,12 @@ static int amdgpu_ttm_backend_bind(struct ttm_tt *ttm, ...@@ -1155,7 +1155,12 @@ static int amdgpu_ttm_backend_bind(struct ttm_tt *ttm,
} }
/** /**
* amdgpu_ttm_alloc_gart - Allocate GART memory for buffer object * amdgpu_ttm_alloc_gart - Make sure buffer object is accessible either
* through AGP or GART aperture.
*
* If bo is accessible through AGP aperture, then use AGP aperture
* to access bo; otherwise allocate logical space in GART aperture
* and map bo to GART aperture.
*/ */
int amdgpu_ttm_alloc_gart(struct ttm_buffer_object *bo) int amdgpu_ttm_alloc_gart(struct ttm_buffer_object *bo)
{ {
......
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