diff options
| author | Oak Zeng <[email protected]> | 2020-08-05 15:53:09 +0000 |
|---|---|---|
| committer | Alex Deucher <[email protected]> | 2020-09-15 21:52:42 +0000 |
| commit | 91b5900507871c735a99842ebfe959dd33a66690 (patch) | |
| tree | 2c5c6e9b69a391755c105984c4bb05fb4bce9075 /drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c | |
| parent | drm/amdgpu: Include sienna_cichlid in USBC PD FW support. (diff) | |
| download | kernel-91b5900507871c735a99842ebfe959dd33a66690.tar.gz kernel-91b5900507871c735a99842ebfe959dd33a66690.zip | |
drm/amdgpu: Add comment to function amdgpu_ttm_alloc_gart
Add comments to refect what function does
Signed-off-by: Oak Zeng <[email protected]>
Reviewed-by: Christian Konig <[email protected]>
Signed-off-by: Alex Deucher <[email protected]>
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c index a18dc878339a..257a1bab0147 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c @@ -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) { |