[Intel-gfx] [PATCH 2/3] drm/i915: Wake up all waiters before idling

[Chris Wilson]

On Mon, Mar 06, 2017 at 09:29:15AM +0000, Chris Wilson wrote:
>  void intel_engine_disarm_breadcrumbs(struct intel_engine_cs *engine)
>  {
>  	struct intel_breadcrumbs *b = &engine->breadcrumbs;
> -	unsigned long flags;
> +	struct intel_wait *wait, *n;
>  
>  	if (!b->irq_armed)
>  		return;
>  
> -	spin_lock_irqsave(&b->irq_lock, flags);
> -
>  	/* We only disarm the irq when we are idle (all requests completed),
>  	 * so if there remains a sleeping waiter, it missed the request

*so if the bottom-half remains asleep, it missed the request

Reviewed-by: Mika Kuoppala <mika.kuoppala at intel.com>
-Chris

-- 
Chris Wilson, Intel Open Source Technology Centre