---

yaml
---
r: 371151
b: refs/heads/master
c: 96a0291
h: refs/heads/master
i:
  371149: f3dd36b
  371147: a2149ea
  371143: 3e07bb5
  371135: 45a20ab
v: v3

[refs]

@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 4878cae22a2405b6d33318e2dc99a9c1367fee44
+refs/heads/master: 96a02917a0131e52efefde49c2784c0421d6c439

trunk/drivers/gpu/drm/i915/i915_irq.c

@@ -915,6 +915,8 @@ static void i915_error_work_func(struct work_struct *work)
 		for_each_ring(ring, dev_priv, i)
 			wake_up_all(&ring->irq_queue);
 
+		intel_display_handle_reset(dev);
+
 		wake_up_all(&dev_priv->gpu_error.reset_queue);
 	}
 }

trunk/drivers/gpu/drm/i915/intel_display.c

@@ -2218,6 +2218,44 @@ intel_pipe_set_base_atomic(struct drm_crtc *crtc, struct drm_framebuffer *fb,
 	return dev_priv->display.update_plane(crtc, fb, x, y);
 }
 
+void intel_display_handle_reset(struct drm_device *dev)
+{
+	struct drm_i915_private *dev_priv = dev->dev_private;
+	struct drm_crtc *crtc;
+
+	/*
+	 * Flips in the rings have been nuked by the reset,
+	 * so complete all pending flips so that user space
+	 * will get its events and not get stuck.
+	 *
+	 * Also update the base address of all primary
+	 * planes to the the last fb to make sure we're
+	 * showing the correct fb after a reset.
+	 *
+	 * Need to make two loops over the crtcs so that we
+	 * don't try to grab a crtc mutex before the
+	 * pending_flip_queue really got woken up.
+	 */
+
+	list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
+		struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
+		enum plane plane = intel_crtc->plane;
+
+		intel_prepare_page_flip(dev, plane);
+		intel_finish_page_flip_plane(dev, plane);
+	}
+
+	list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
+		struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
+
+		mutex_lock(&crtc->mutex);
+		if (intel_crtc->active)
+			dev_priv->display.update_plane(crtc, crtc->fb,
+						       crtc->x, crtc->y);
+		mutex_unlock(&crtc->mutex);
+	}
+}
+
 static int
 intel_finish_fb(struct drm_framebuffer *old_fb)
 {

trunk/drivers/gpu/drm/i915/intel_drv.h

@@ -695,4 +695,6 @@ extern bool
 intel_ddi_connector_get_hw_state(struct intel_connector *intel_connector);
 extern void intel_ddi_fdi_disable(struct drm_crtc *crtc);
 
+extern void intel_display_handle_reset(struct drm_device *dev);
+
 #endif /* __INTEL_DRV_H__ */