Re: [RFC 6/8] drm/i915: Fix loop on CSB processing

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On Wed, Mar 21, 2018 at 10:26:23AM -0700, jeff.mcgee@xxxxxxxxx wrote:
> From: Jeff McGee <jeff.mcgee@xxxxxxxxx>
> 
> Signed-off-by: Jeff McGee <jeff.mcgee@xxxxxxxxx>
> ---
>  drivers/gpu/drm/i915/intel_lrc.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/drivers/gpu/drm/i915/intel_lrc.c b/drivers/gpu/drm/i915/intel_lrc.c
> index beb81f13a3cc..cec4e1653daf 100644
> --- a/drivers/gpu/drm/i915/intel_lrc.c
> +++ b/drivers/gpu/drm/i915/intel_lrc.c
> @@ -1009,7 +1009,7 @@ static void execlists_submission_tasklet(unsigned long data)
>  	 * imposing the cost of a locked atomic transaction when submitting a
>  	 * new request (outside of the context-switch interrupt).
>  	 */
> -	if (test_bit(ENGINE_IRQ_EXECLIST, &engine->irq_posted))
> +	while (test_bit(ENGINE_IRQ_EXECLIST, &engine->irq_posted))
Assuming that this accidentally went missing in the refactor. Chris?

>  		process_csb(engine);
>  
>  	if (!execlists_is_active(&engine->execlists, EXECLISTS_ACTIVE_PREEMPT))
> -- 
> 2.16.2
> 
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