Re: [PATCH] drm/sched: Partial revert of "Qualify drm_sched_wakeup() by drm_sched_entity_is_ready()"

[Luben Tuikov <ltuikov89@gmail.com>]

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On 2023-11-27 11:09, Bert Karwatzki wrote:
> Commit f3123c2590005c, in combination with the use of work queues by the GPU
> scheduler, leads to random lock-ups of the GUI.
> 
> This is a partial revert of of commit f3123c2590005c since drm_sched_wakeup() still
> needs its entity argument to pass it to drm_sched_can_queue().
> 
> Link: https://gitlab.freedesktop.org/drm/amd/-/issues/2994
> Link: https://lists.freedesktop.org/archives/dri-devel/2023-November/431606.html
> Fixes: f3123c2590005c ("drm/sched: Qualify drm_sched_wakeup() by drm_sched_entity_is_ready()")
> 
> Signed-off-by: Bert Karwatzki <spasswolf@web.de>
> ---
>  drivers/gpu/drm/scheduler/sched_main.c | 5 ++---
>  1 file changed, 2 insertions(+), 3 deletions(-)
> 
> diff --git a/drivers/gpu/drm/scheduler/sched_main.c b/drivers/gpu/drm/scheduler/sched_main.c
> index 682aebe96db7..550492a7a031 100644
> --- a/drivers/gpu/drm/scheduler/sched_main.c
> +++ b/drivers/gpu/drm/scheduler/sched_main.c
> @@ -1029,9 +1029,8 @@ EXPORT_SYMBOL(drm_sched_job_cleanup);
>  void drm_sched_wakeup(struct drm_gpu_scheduler *sched,
>  		      struct drm_sched_entity *entity)
>  {
> -	if (drm_sched_entity_is_ready(entity))
> -		if (drm_sched_can_queue(sched, entity))
> -			drm_sched_run_job_queue(sched);
> +	if (drm_sched_can_queue(sched, entity))
> +		drm_sched_run_job_queue(sched);
>  }
> 
>  /**
> --
> 2.43.0
> 

Reviewed-by: Luben Tuikov <ltuikov89@gmail.com>

Pushed to drm-misc-next.

Thanks!
-- 
Regards,
Luben

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