diff --git a/drivers/gpu/drm/drm_crtc_helper.c b/drivers/gpu/drm/drm_crtc_helper.c
index a04639d..4589044 100644
--- a/drivers/gpu/drm/drm_crtc_helper.c
+++ b/drivers/gpu/drm/drm_crtc_helper.c
@@ -561,7 +561,6 @@
 	int saved_x, saved_y;
 	struct drm_encoder *encoder;
 	bool ret = true;
-	bool depth_changed, bpp_changed;
 
 	adjusted_mode = drm_mode_duplicate(dev, mode);
 
@@ -570,15 +569,6 @@
 	if (!crtc->enabled)
 		return true;
 
-	if (old_fb && crtc->fb) {
-		depth_changed = (old_fb->depth != crtc->fb->depth);
-		bpp_changed = (old_fb->bits_per_pixel !=
-			       crtc->fb->bits_per_pixel);
-	} else {
-		depth_changed = true;
-		bpp_changed = true;
-	}
-
 	saved_mode = crtc->mode;
 	saved_x = crtc->x;
 	saved_y = crtc->y;
@@ -590,15 +580,6 @@
 	crtc->x = x;
 	crtc->y = y;
 
-	if (drm_mode_equal(&saved_mode, &crtc->mode)) {
-		if (saved_x != crtc->x || saved_y != crtc->y ||
-		    depth_changed || bpp_changed) {
-			ret = !crtc_funcs->mode_set_base(crtc, crtc->x, crtc->y,
-							 old_fb);
-			goto done;
-		}
-	}
-
 	/* Pass our mode to the connectors and the CRTC to give them a chance to
 	 * adjust it according to limitations or connector properties, and also
 	 * a chance to reject the mode entirely.
diff --git a/drivers/gpu/drm/drm_drv.c b/drivers/gpu/drm/drm_drv.c
index c4ada8b..f01def1 100644
--- a/drivers/gpu/drm/drm_drv.c
+++ b/drivers/gpu/drm/drm_drv.c
@@ -456,7 +456,8 @@
 		retcode = -EINVAL;
 	} else if (((ioctl->flags & DRM_ROOT_ONLY) && !capable(CAP_SYS_ADMIN)) ||
 		   ((ioctl->flags & DRM_AUTH) && !file_priv->authenticated) ||
-		   ((ioctl->flags & DRM_MASTER) && !file_priv->is_master)) {
+		   ((ioctl->flags & DRM_MASTER) && !file_priv->is_master) ||
+		   (!(ioctl->flags & DRM_CONTROL_ALLOW) && (file_priv->minor->type == DRM_MINOR_CONTROL))) {
 		retcode = -EACCES;
 	} else {
 		if (cmd & (IOC_IN | IOC_OUT)) {
diff --git a/drivers/gpu/drm/drm_stub.c b/drivers/gpu/drm/drm_stub.c
index ef87861..b9631e3 100644
--- a/drivers/gpu/drm/drm_stub.c
+++ b/drivers/gpu/drm/drm_stub.c
@@ -402,14 +402,14 @@
 	if (dev->driver->load) {
 		ret = dev->driver->load(dev, ent->driver_data);
 		if (ret)
-			goto err_g3;
+			goto err_g4;
 	}
 
         /* setup the grouping for the legacy output */
 	if (drm_core_check_feature(dev, DRIVER_MODESET)) {
 		ret = drm_mode_group_init_legacy_group(dev, &dev->primary->mode_group);
 		if (ret)
-			goto err_g3;
+			goto err_g4;
 	}
 
 	list_add_tail(&dev->driver_item, &driver->device_list);
@@ -420,8 +420,11 @@
 
 	return 0;
 
-err_g3:
+err_g4:
 	drm_put_minor(&dev->primary);
+err_g3:
+	if (drm_core_check_feature(dev, DRIVER_MODESET))
+		drm_put_minor(&dev->control);
 err_g2:
 	pci_disable_device(pdev);
 err_g1:
@@ -502,11 +505,11 @@
 		dev->agp = NULL;
 	}
 
-	drm_ht_remove(&dev->map_hash);
-	drm_ctxbitmap_cleanup(dev);
-
 	list_for_each_entry_safe(r_list, list_temp, &dev->maplist, head)
 		drm_rmmap(dev, r_list->map);
+	drm_ht_remove(&dev->map_hash);
+
+	drm_ctxbitmap_cleanup(dev);
 
 	if (drm_core_check_feature(dev, DRIVER_MODESET))
 		drm_put_minor(&dev->control);
diff --git a/drivers/gpu/drm/drm_sysfs.c b/drivers/gpu/drm/drm_sysfs.c
index 022876a..8f93729 100644
--- a/drivers/gpu/drm/drm_sysfs.c
+++ b/drivers/gpu/drm/drm_sysfs.c
@@ -489,9 +489,7 @@
 
 	return 0;
 
-	device_unregister(&minor->kdev);
 err_out:
-
 	return err;
 }
 
diff --git a/drivers/gpu/drm/r128/r128_cce.c b/drivers/gpu/drm/r128/r128_cce.c
index 32de4ce..077c045 100644
--- a/drivers/gpu/drm/r128/r128_cce.c
+++ b/drivers/gpu/drm/r128/r128_cce.c
@@ -511,9 +511,9 @@
 
 #if __OS_HAS_AGP
 	if (!dev_priv->is_pci) {
-		drm_core_ioremap(dev_priv->cce_ring, dev);
-		drm_core_ioremap(dev_priv->ring_rptr, dev);
-		drm_core_ioremap(dev->agp_buffer_map, dev);
+		drm_core_ioremap_wc(dev_priv->cce_ring, dev);
+		drm_core_ioremap_wc(dev_priv->ring_rptr, dev);
+		drm_core_ioremap_wc(dev->agp_buffer_map, dev);
 		if (!dev_priv->cce_ring->handle ||
 		    !dev_priv->ring_rptr->handle ||
 		    !dev->agp_buffer_map->handle) {
diff --git a/drivers/gpu/drm/radeon/radeon_drv.h b/drivers/gpu/drm/radeon/radeon_drv.h
index ed4d27e..8071d96 100644
--- a/drivers/gpu/drm/radeon/radeon_drv.h
+++ b/drivers/gpu/drm/radeon/radeon_drv.h
@@ -99,9 +99,10 @@
  * 1.27- Add support for IGP GART
  * 1.28- Add support for VBL on CRTC2
  * 1.29- R500 3D cmd buffer support
+ * 1.30- Add support for occlusion queries
  */
 #define DRIVER_MAJOR		1
-#define DRIVER_MINOR		29
+#define DRIVER_MINOR		30
 #define DRIVER_PATCHLEVEL	0
 
 /*