+ return ret;
+}
+
+
+int vmw_execbuf_ioctl(struct drm_device *dev, void *data,
+ struct drm_file *file_priv)
+{
+ struct vmw_private *dev_priv = vmw_priv(dev);
+ struct drm_vmw_execbuf_arg *arg = (struct drm_vmw_execbuf_arg *)data;
+ struct vmw_master *vmaster = vmw_master(file_priv->master);
+ int ret;
+
+ /*
+ * This will allow us to extend the ioctl argument while
+ * maintaining backwards compatibility:
+ * We take different code paths depending on the value of
+ * arg->version.
+ */
+
+ if (unlikely(arg->version != DRM_VMW_EXECBUF_VERSION)) {
+ DRM_ERROR("Incorrect execbuf version.\n");
+ DRM_ERROR("You're running outdated experimental "
+ "vmwgfx user-space drivers.");
+ return -EINVAL;
+ }
+
+ ret = ttm_read_lock(&vmaster->lock, true);
+ if (unlikely(ret != 0))
+ return ret;
+
+ ret = vmw_execbuf_process(file_priv, dev_priv,
+ (void __user *)(unsigned long)arg->commands,
+ NULL, arg->command_size, arg->throttle_us,
+ (void __user *)(unsigned long)arg->fence_rep);
+
+ if (unlikely(ret != 0))
+ goto out_unlock;
+
+ vmw_kms_cursor_post_execbuf(dev_priv);
+
+out_unlock: