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3 Commits

Author SHA1 Message Date
Likun Gao
d9b9aaae3a drm/amdgpu: support fill mem for LSDMA 
Support constant data filling in PIO mode for LSDMA.

Signed-off-by: Likun Gao <Likun.Gao@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
 2022-05-10 17:53:11 -04:00
Likun Gao
f932ffbbf6 drm/amdgpu: support mem copy for LSDMA 
Support memory to memory linear copy in PIO mode for LSDMA.

Signed-off-by: Likun Gao <Likun.Gao@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
 2022-05-10 17:53:11 -04:00
Likun Gao
1b49133042 drm/amdgpu: add lsdma block 
Add Light SDMA (LSDMA) block and related function. LSDMA
is a small instance of SDMA mainly for kernel driver use.

Signed-off-by: Likun Gao <Likun.Gao@amd.com>
Reviewed-by: Hawking Zhang <Hawking.Zhang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
 2022-05-10 17:53:11 -04:00