diff --git a/[refs] b/[refs]
index adbd2b123994..0d5d4508647a 100644
--- a/[refs]
+++ b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 8e19a951774a16cf2626292ae06fd2b62630e67e
+refs/heads/master: c188660f6dbb0df9febe1b841a16c66c28353c15
diff --git a/trunk/drivers/gpu/drm/vmwgfx/vmwgfx_drv.c b/trunk/drivers/gpu/drm/vmwgfx/vmwgfx_drv.c
index f47ff2c05466..a6e8f687fa64 100644
--- a/trunk/drivers/gpu/drm/vmwgfx/vmwgfx_drv.c
+++ b/trunk/drivers/gpu/drm/vmwgfx/vmwgfx_drv.c
@@ -209,6 +209,7 @@ static int vmw_driver_load(struct drm_device *dev, unsigned long chipset)
 {
 	struct vmw_private *dev_priv;
 	int ret;
+	uint32_t svga_id;
 
 	dev_priv = kzalloc(sizeof(*dev_priv), GFP_KERNEL);
 	if (unlikely(dev_priv == NULL)) {
@@ -239,6 +240,16 @@ static int vmw_driver_load(struct drm_device *dev, unsigned long chipset)
 	dev_priv->mmio_start = pci_resource_start(dev->pdev, 2);
 
 	mutex_lock(&dev_priv->hw_mutex);
+
+	vmw_write(dev_priv, SVGA_REG_ID, SVGA_ID_2);
+	svga_id = vmw_read(dev_priv, SVGA_REG_ID);
+	if (svga_id != SVGA_ID_2) {
+		ret = -ENOSYS;
+		DRM_ERROR("Unsuported SVGA ID 0x%x\n", svga_id);
+		mutex_unlock(&dev_priv->hw_mutex);
+		goto out_err0;
+	}
+
 	dev_priv->capabilities = vmw_read(dev_priv, SVGA_REG_CAPABILITIES);
 
 	if (dev_priv->capabilities & SVGA_CAP_GMR) {