Files
linux/drivers/gpu/drm/amd/amdgpu
Xiaomeng Hou a9c210c1e5 drm/amdgpu/sdma5.2: soft reset sdma blocks before setup and start sdma
Without doing the soft reset, register mmSDMA0_GFX_RB_WPTR's value could not be
reset to 0 when sdma block resumes. That would cause the ring buffer's read and
write pointers not equal and ring test fail. So add the soft reset step.

Signed-off-by: Xiaomeng Hou <Xiaomeng.Hou@amd.com>
Reviewed-by: Huang Rui <ray.huang@amd.com>
Acked-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2020-12-15 11:31:28 -05:00
..
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2019-06-10 23:00:01 +02:00
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