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

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[ Upstream commit daf8de0874ab5b74b38a38726fdd3d07ef98a7ee ]

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>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Alex Deucher 2021-11-12 11:25:30 -05:00 committed by Greg Kroah-Hartman
parent fbabb82b11
commit 3c196f0566
1 changed files with 4 additions and 1 deletions
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5
drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c
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@ -1526,7 +1526,10 @@ 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;
}