Re: [Lima] [PATCH] drm/lima: fix sched context destroy

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On Tue, Jun 6, 2023 at 7:33 AM Erico Nunes <nunes.erico@xxxxxxxxx> wrote:
>
> The drm sched entity must be flushed before finishing, to account for
> jobs potentially still in flight at that time.
> Lima did not do this flush until now, so switch the destroy call to the
> drm_sched_entity_destroy() wrapper which will take care of that.
>
> This fixes a regression on lima which started since the rework in
> commit 2fdb8a8f07c2 ("drm/scheduler: rework entity flush, kill and fini")
> where some specific types of applications may hang indefinitely.
>
> Fixes: 2fdb8a8f07c2 ("drm/scheduler: rework entity flush, kill and fini")
> Signed-off-by: Erico Nunes <nunes.erico@xxxxxxxxx>

Reviewed-by: Vasily Khoruzhick <anarsoul@xxxxxxxxx>

> ---
>  drivers/gpu/drm/lima/lima_sched.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/drivers/gpu/drm/lima/lima_sched.c b/drivers/gpu/drm/lima/lima_sched.c
> index ff003403fbbc..ffd91a5ee299 100644
> --- a/drivers/gpu/drm/lima/lima_sched.c
> +++ b/drivers/gpu/drm/lima/lima_sched.c
> @@ -165,7 +165,7 @@ int lima_sched_context_init(struct lima_sched_pipe *pipe,
>  void lima_sched_context_fini(struct lima_sched_pipe *pipe,
>                              struct lima_sched_context *context)
>  {
> -       drm_sched_entity_fini(&context->base);
> +       drm_sched_entity_destroy(&context->base);
>  }
>
>  struct dma_fence *lima_sched_context_queue_task(struct lima_sched_task *task)
> --
> 2.40.1
>




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