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drm/amdgpu: always reset the asic in suspend (v2)

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If the platform suspend happens to fail and the power rail
is not turned off, the GPU will be in an unknown state on
resume, so reset the asic so that it will be in a known
good state on resume even if the platform suspend failed.

v2: handle s0ix

Acked-by: Luben Tuikov <luben.tuikov@amd.com>
Acked-by: Evan Quan <evan.quan@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Alex Deucher 2021-11-12 11:25:30 -05:00
parent 4a700546ec
commit 6dc8265f98
1 changed files with 4 additions and 1 deletions
repo.diff.show_diff_stats Download patch file Download diff file Expand all files Collapse all files

5
drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c
View file

@ -2170,7 +2170,10 @@ static int amdgpu_pmops_suspend(struct device *dev)
adev->in_s3 = true;
r = amdgpu_device_suspend(drm_dev, true);
adev->in_s3 = false;
if (r)
return r;
if (!adev->in_s0ix)
r = amdgpu_asic_reset(adev);
return r;
}