[Intel-gfx] [PATCH 2/4] drm/i915: Only trigger missed-seqno checking next to boundary

Chris Wilson chris at chris-wilson.co.uk
Thu Jun 28 20:06:26 UTC 2018


Quoting Mika Kuoppala (2018-06-28 09:06:37)
> Chris Wilson <chris at chris-wilson.co.uk> writes:
> 
> > If we have more interrupts pending (because we know there are more
> > breadcrumb signals before the completion), then we do not need to
> > trigger an irq_seqno_barrier or even wakeup the task on this interrupt
> > as there will be another. To allow some margin of error (we are trying
> > to work around incoherent seqno after all), we wakeup the breadcrumb
> > before the target as well as on the target.
> >
> > Signed-off-by: Chris Wilson <chris at chris-wilson.co.uk>
> > Cc: Mika Kuoppala <mika.kuoppala at linux.intel.com>
> 
> Thanks for splitting this out.
> 
> Reviewed-by: Mika Kuoppala <mika.kuoppala at linux.intel.com>

And applied, thanks for the review.

Fingers crossed as always when touching interrupt handling.
-Chris


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