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 <chris@xxxxxxxxxxxxxxxxxx> Cc: Tvrtko Ursulin <tvrtko.ursulin@xxxxxxxxx> Cc: Mika Kuoppala <mika.kuoppala@xxxxxxxxxxxxxxx> Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@xxxxxxxxx> Reviewed-by: Mika Kuoppala <mika.kuoppala@xxxxxxxxxxxxxxx> --- 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 d229a555db25..83a8b67d6427 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)) { + mod_timer(&b->hangcheck, wait_timeout()); + return; + } + DRM_DEBUG("Hangcheck timer elapsed... %s idle\n", engine->name); set_bit(engine->id, &engine->i915->gpu_error.missed_irq_rings); mod_timer(&engine->breadcrumbs.fake_irq, jiffies + 1); -- 2.11.0 _______________________________________________ Intel-gfx mailing list Intel-gfx@xxxxxxxxxxxxxxxxxxxxx https://lists.freedesktop.org/mailman/listinfo/intel-gfx
