1 files changed, 10 insertions, 0 deletions

diff --git a/drivers/gpu/drm/i915/i915_irq.c b/drivers/gpu/drm/i915/i915_irq.c
index 5161cea7a4ef..69a36fc035dc 100644
--- a/drivers/gpu/drm/i915/i915_irq.c
+++ b/drivers/gpu/drm/i915/i915_irq.c
@@ -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;
         }