[RFC v2 3/8] drm/amdgpu: Fix crash on modprobe

[Christian König]

Am 22.12.21 um 23:05 schrieb Andrey Grodzovsky:
> Restrict jobs resubmission to suspend case
> only since schedulers not initialised yet on
> probe.
>
> Signed-off-by: Andrey Grodzovsky <andrey.grodzovsky at amd.com>
> ---
>   drivers/gpu/drm/amd/amdgpu/amdgpu_fence.c | 2 +-
>   1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_fence.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_fence.c
> index 5527c68c51de..8ebd954e06c6 100644
> --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_fence.c
> +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_fence.c
> @@ -582,7 +582,7 @@ void amdgpu_fence_driver_hw_init(struct amdgpu_device *adev)
>   		if (!ring || !ring->fence_drv.initialized)
>   			continue;
>   
> -		if (!ring->no_scheduler) {
> +		if (adev->in_suspend && !ring->no_scheduler) {

Please add a TODO comment, something like "restructure resume to make 
that unnecessary".

With that done the patch is Reviewed-by: Christian König 
<christian.koenig at amd.com> as well.

Christian.

>   			drm_sched_resubmit_jobs(&ring->sched);
>   			drm_sched_start(&ring->sched, true);
>   		}