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| author | Horace Chen <horace.chen@amd.com> | 2023-04-25 13:15:32 +0800 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2023-06-09 09:25:40 -0400 |
| commit | 9f58341d63bd26e93cca66e9e1ca850d3c40b0c3 (patch) | |
| tree | 2f2c581190aba3db0da9c67ec91615a374618149 /drivers/gpu/drm/amd/amdgpu/amdgpu_virt.c | |
| parent | 64e2e71737acad867577deac92c1bec62e8b57d1 (diff) | |
drm/amdgpu: disable SDMA WPTR_POLL_ENABLE for SR-IOV
[Why]
This WPTR_POLL_ENABLE is a hardware contigious polling which will cause
FCLK and UCLK to keep on a high level.
Mostly its case can be covered by F32_WPTR_POLL_ENABLE which polls by
firmware.
So to save power, SR-IOV also needs to disable this bit
Signed-off-by: Horace Chen <horace.chen@amd.com>
Acked-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_virt.c')
0 files changed, 0 insertions, 0 deletions