+ dev_priv->mm.gtt = intel_gtt_get();
+ if (!dev_priv->mm.gtt) {
+ DRM_ERROR("Failed to initialize GTT\n");
+ ret = -ENODEV;
+ goto out_iomapfree;
+ }
+
+ prealloc_size = dev_priv->mm.gtt->gtt_stolen_entries << PAGE_SHIFT;
+ agp_size = dev_priv->mm.gtt->gtt_mappable_entries << PAGE_SHIFT;
+