drm/amdgpu: disable SDMA WPTR_POLL_ENABLE for SR-IOV

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[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>

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Horace Chen 2023-04-25 13:15:32 +08:00 • committed by Alex Deucher

parent 64e2e71737

commit 9f58341d63

1 changed files with 1 additions and 4 deletions

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5

drivers/gpu/drm/amd/amdgpu/sdma_v6_0.c

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