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drm/amdgpu: force exit gfxoff on sdma resume for rmb s0ix

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In the s2idle stress test sdma resume fail occasionally,in the
failed case GPU is in the gfxoff state.This issue may introduce
by firmware miss handle doorbell S/R and now temporary fix the issue
by forcing exit gfxoff for sdma resume.

Signed-off-by: Prike Liang <Prike.Liang@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Prike Liang
2021-08-25 13:36:38 +08:00
committed by Alex Deucher
parent 3f68c01be9
commit e5d59cfa33
1 changed files with 8 additions and 0 deletions
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8
drivers/gpu/drm/amd/amdgpu/sdma_v5_2.c
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@@ -868,6 +868,12 @@ static int sdma_v5_2_start(struct amdgpu_device *adev)
msleep(1000);
}
/* TODO: check whether can submit a doorbell request to raise
* a doorbell fence to exit gfxoff.
*/
if (adev->in_s0ix)
amdgpu_gfx_off_ctrl(adev, false);
sdma_v5_2_soft_reset(adev);
/* unhalt the MEs */
sdma_v5_2_enable(adev, true);
@@ -876,6 +882,8 @@ static int sdma_v5_2_start(struct amdgpu_device *adev)
/* start the gfx rings and rlc compute queues */
r = sdma_v5_2_gfx_resume(adev);
if (adev->in_s0ix)
amdgpu_gfx_off_ctrl(adev, true);
if (r)
return r;
r = sdma_v5_2_rlc_resume(adev);