Chris Wilson <ch...@chris-wilson.co.uk> writes:

> Since commit 4a118ecbe99c ("drm/i915: Filter out spurious execlists
> context-switch interrupts") we probe execlists->active, and no longer
> have to peek at the execlist interrupt to determine if the tasklet still
> needs to be run to drain the ELSP.
>
> References: 4a118ecbe99c ("drm/i915: Filter out spurious execlists 
> context-switch interrupts")
> Signed-off-by: Chris Wilson <ch...@chris-wilson.co.uk>
> Cc: Michal Winiarski <michal.winiar...@intel.com>
> Cc: Tvrtko Ursulin <tvrtko.ursu...@intel.com>
> Cc: Mika Kuoppala <mika.kuopp...@intel.com>
> ---
>  drivers/gpu/drm/i915/intel_engine_cs.c | 4 ----
>  1 file changed, 4 deletions(-)
>
> diff --git a/drivers/gpu/drm/i915/intel_engine_cs.c 
> b/drivers/gpu/drm/i915/intel_engine_cs.c
> index bf634432c9c6..0ad9184eba97 100644
> --- a/drivers/gpu/drm/i915/intel_engine_cs.c
> +++ b/drivers/gpu/drm/i915/intel_engine_cs.c
> @@ -1503,10 +1503,6 @@ bool intel_engine_is_idle(struct intel_engine_cs 
> *engine)
>       if (I915_SELFTEST_ONLY(engine->breadcrumbs.mock))
>               return true;
>  
> -     /* Interrupt/tasklet pending? */
> -     if (test_bit(ENGINE_IRQ_EXECLIST, &engine->irq_posted))
> -             return false;
> -

We assert that active is set on preempt so there should
be no window of idleness during that either.

Reviewed-by: Mika Kuoppala <mika.kuopp...@linux.intel.com>

>       /* Waiting to drain ELSP? */
>       if (READ_ONCE(engine->execlists.active))
>               return false;
> -- 
> 2.16.1
>
> _______________________________________________
> Intel-gfx mailing list
> Intel-gfx@lists.freedesktop.org
> https://lists.freedesktop.org/mailman/listinfo/intel-gfx
_______________________________________________
Intel-gfx mailing list
Intel-gfx@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/intel-gfx

Reply via email to