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drm/amdgpu: Fix vce work queue was not cancelled when suspend 

The vce cancel_delayed_work_sync never be called.
driver call the function in error path.

This caused the A+A suspend hang when runtime pm enebled.
As we will visit the smu in the idle queue. this will cause
smu hang because the dgpu has been suspend, and the dgpu also
will be waked up. As the smu has been hang, so the dgpu resume
will failed.

Reviewed-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Feifei Xu <Feifei.Xu@amd.com>
Signed-off-by: Rex Zhu <Rex.Zhu@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
This commit is contained in:
Rex Zhu 2018-09-27 20:48:39 +08:00 committed by Alex Deucher
parent 4fcb7f8be8
commit 61ea6f5831
2 changed files with 4 additions and 3 deletions
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3
drivers/gpu/drm/amd/amdgpu/amdgpu_vce.c
View File

@ -258,6 +258,8 @@ int amdgpu_vce_suspend(struct amdgpu_device *adev)
{
int i;
cancel_delayed_work_sync(&adev->vce.idle_work);
if (adev->vce.vcpu_bo == NULL)
return 0;
@ -268,7 +270,6 @@ int amdgpu_vce_suspend(struct amdgpu_device *adev)
if (i == AMDGPU_MAX_VCE_HANDLES)
return 0;
cancel_delayed_work_sync(&adev->vce.idle_work);
/* TODO: suspending running encoding sessions isn't supported */
return -EINVAL;
}

4
drivers/gpu/drm/amd/amdgpu/amdgpu_vcn.c
View File

@ -153,11 +153,11 @@ int amdgpu_vcn_suspend(struct amdgpu_device *adev)
unsigned size;
void *ptr;
cancel_delayed_work_sync(&adev->vcn.idle_work);
if (adev->vcn.vcpu_bo == NULL)
return 0;
cancel_delayed_work_sync(&adev->vcn.idle_work);
size = amdgpu_bo_size(adev->vcn.vcpu_bo);
ptr = adev->vcn.cpu_addr;