1 files changed, 19 insertions, 10 deletions

diff --git a/drivers/gpu/drm/i915/i915_dma.c b/drivers/gpu/drm/i915/i915_dma.c
index 01de536e0211..553dd4bc3075 100644
--- a/drivers/gpu/drm/i915/i915_dma.c
+++ b/drivers/gpu/drm/i915/i915_dma.c
@@ -154,6 +154,9 @@ static int i915_dma_cleanup(struct drm_device * dev)
 	if (I915_NEED_GFX_HWS(dev))
 		i915_free_hws(dev);
 
+	dev_priv->sarea = NULL;
+	dev_priv->sarea_priv = NULL;
+
 	return 0;
 }
 
@@ -442,7 +445,7 @@ static void i915_emit_breadcrumb(struct drm_device *dev)
 
 	BEGIN_LP_RING(4);
 	OUT_RING(MI_STORE_DWORD_INDEX);
-	OUT_RING(5 << MI_STORE_DWORD_INDEX_SHIFT);
+	OUT_RING(I915_BREADCRUMB_INDEX << MI_STORE_DWORD_INDEX_SHIFT);
 	OUT_RING(dev_priv->counter);
 	OUT_RING(0);
 	ADVANCE_LP_RING();
@@ -573,7 +576,7 @@ static int i915_dispatch_flip(struct drm_device * dev)
 
 	BEGIN_LP_RING(4);
 	OUT_RING(MI_STORE_DWORD_INDEX);
-	OUT_RING(5 << MI_STORE_DWORD_INDEX_SHIFT);
+	OUT_RING(I915_BREADCRUMB_INDEX << MI_STORE_DWORD_INDEX_SHIFT);
 	OUT_RING(dev_priv->counter);
 	OUT_RING(0);
 	ADVANCE_LP_RING();
@@ -608,7 +611,6 @@ static int i915_batchbuffer(struct drm_device *dev, void *data,
 			    struct drm_file *file_priv)
 {
 	drm_i915_private_t *dev_priv = (drm_i915_private_t *) dev->dev_private;
-	u32 *hw_status = dev_priv->hw_status_page;
 	drm_i915_sarea_t *sarea_priv = (drm_i915_sarea_t *)
 	    dev_priv->sarea_priv;
 	drm_i915_batchbuffer_t *batch = data;
@@ -634,7 +636,7 @@ static int i915_batchbuffer(struct drm_device *dev, void *data,
 	mutex_unlock(&dev->struct_mutex);
 
 	if (sarea_priv)
-		sarea_priv->last_dispatch = (int)hw_status[5];
+		sarea_priv->last_dispatch = READ_BREADCRUMB(dev_priv);
 	return ret;
 }
 
@@ -642,7 +644,6 @@ static int i915_cmdbuffer(struct drm_device *dev, void *data,
 			  struct drm_file *file_priv)
 {
 	drm_i915_private_t *dev_priv = (drm_i915_private_t *) dev->dev_private;
-	u32 *hw_status = dev_priv->hw_status_page;
 	drm_i915_sarea_t *sarea_priv = (drm_i915_sarea_t *)
 	    dev_priv->sarea_priv;
 	drm_i915_cmdbuffer_t *cmdbuf = data;
@@ -670,7 +671,7 @@ static int i915_cmdbuffer(struct drm_device *dev, void *data,
 	}
 
 	if (sarea_priv)
-		sarea_priv->last_dispatch = (int)hw_status[5];
+		sarea_priv->last_dispatch = READ_BREADCRUMB(dev_priv);
 	return 0;
 }
 
@@ -846,16 +847,23 @@ int i915_driver_load(struct drm_device *dev, unsigned long flags)
 	 * and the registers being closely associated.
 	 *
 	 * According to chipset errata, on the 965GM, MSI interrupts may
-	 * be lost or delayed
+	 * be lost or delayed, but we use them anyways to avoid
+	 * stuck interrupts on some machines.
 	 */
-	if (!IS_I945G(dev) && !IS_I945GM(dev) && !IS_I965GM(dev))
-		if (pci_enable_msi(dev->pdev))
-			DRM_ERROR("failed to enable MSI\n");
+	if (!IS_I945G(dev) && !IS_I945GM(dev))
+		pci_enable_msi(dev->pdev);
 
 	intel_opregion_init(dev);
 
 	spin_lock_init(&dev_priv->user_irq_lock);
 
+	ret = drm_vblank_init(dev, I915_NUM_PIPE);
+
+	if (ret) {
+		(void) i915_driver_unload(dev);
+		return ret;
+	}
+
 	return ret;
 }
 
@@ -960,6 +968,7 @@ struct drm_ioctl_desc i915_ioctls[] = {
 	DRM_IOCTL_DEF(DRM_I915_GEM_SW_FINISH, i915_gem_sw_finish_ioctl, 0),
 	DRM_IOCTL_DEF(DRM_I915_GEM_SET_TILING, i915_gem_set_tiling, 0),
 	DRM_IOCTL_DEF(DRM_I915_GEM_GET_TILING, i915_gem_get_tiling, 0),
+	DRM_IOCTL_DEF(DRM_I915_GEM_GET_APERTURE, i915_gem_get_aperture_ioctl, 0),
 };
 
 int i915_max_ioctl = DRM_ARRAY_SIZE(i915_ioctls);