Chris Wilson <ch...@chris-wilson.co.uk> writes: > On Fri, Feb 17, 2017 at 01:35:15PM +0200, Mika Kuoppala wrote: >> Chris Wilson <ch...@chris-wilson.co.uk> writes: >> >> > If the waiter was currently running, assume it hasn't had a chance >> > to process the pending interupt (e.g, low priority task on a loaded >> > system) and wait until it sleeps before declaring a missed interrupt. >> > >> > References: https://bugs.freedesktop.org/show_bug.cgi?id=99816 >> > Signed-off-by: Chris Wilson <ch...@chris-wilson.co.uk> >> > Cc: Tvrtko Ursulin <tvrtko.ursu...@intel.com> >> > Cc: Mika Kuoppala <mika.kuopp...@linux.intel.com> >> > --- >> > drivers/gpu/drm/i915/intel_breadcrumbs.c | 9 +++++++++ >> > 1 file changed, 9 insertions(+) >> > >> > diff --git a/drivers/gpu/drm/i915/intel_breadcrumbs.c >> > b/drivers/gpu/drm/i915/intel_breadcrumbs.c >> > index 4395b177493e..2ad29fb77b2d 100644 >> > --- a/drivers/gpu/drm/i915/intel_breadcrumbs.c >> > +++ b/drivers/gpu/drm/i915/intel_breadcrumbs.c >> > @@ -45,6 +45,15 @@ static void intel_breadcrumbs_hangcheck(unsigned long >> > data) >> > return; >> > } >> > >> > + /* If the waiter was currently running, assume it hasn't had a chance >> > + * to process the pending interupt (e.g, low priority task on a loaded >> > + * system) and wait until it sleeps before declaring a missed interrupt. >> > + */ >> > + if (!intel_engine_wakeup(engine)) { >> >> But this will happen if there is waiter running, or that there is >> no waiter at all. >> >> Don't we need to exclude the latter? > > We already exclude the latter by cancelling this timer above.
Got it now, Reviewed-by: Mika Kuoppala <mika.kuopp...@intel.com> > -Chris > > -- > Chris Wilson, Intel Open Source Technology Centre _______________________________________________ Intel-gfx mailing list Intel-gfx@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/intel-gfx
