forked from Minki/linux
2ffe31deb2
On Tonga VF, there're 2 sources updating wptr registers for sdma3: 1) polling mem and 2) doorbell. When doorbell and polling mem are both enabled on sdma3, there will be collision hit in occasion between those two sources when ucode and h/w are doing the updating on wptr register in parallel. Issue doesn't happen on CP GFX/Compute since CP drops all doorbell writes when VF is inactive. So enable polling mem and don't use doorbell for SDMA3. Signed-off-by: Pixel Ding <Pixel.Ding@amd.com> Reviewed-by: Monk Liu <monk.liu@amd.com> Reviewed-by: Christian König <christian.koenig@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com> |
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| amdgpu | ||
| amdkfd | ||
| display | ||
| include | ||
| lib | ||
| powerplay | ||