@@ -1304,6 +1304,16 @@ void i915_hangcheck_elapsed(unsigned long data)
&dev_priv->render_ring),
i915_get_tail_request(dev)->seqno)) {
dev_priv->hangcheck_count = 0;
+
+ /* Issue a wake-up to catch stuck h/w. */
+ if (dev_priv->render_ring.waiting_gem_seqno |
+ dev_priv->bsd_ring.waiting_gem_seqno) {
+ DRM_ERROR("Hangcheck timer elapsed... GPU idle, missed IRQ.\n");
+ if (dev_priv->render_ring.waiting_gem_seqno)
+ DRM_WAKEUP(&dev_priv->render_ring.irq_queue);
+ if (dev_priv->bsd_ring.waiting_gem_seqno)
+ DRM_WAKEUP(&dev_priv->bsd_ring.irq_queue);
+ }
return;
}