vmwgfx: Add helper function to get surface or dmabuf

[pandora-kernel.git] / drivers / gpu / drm / vmwgfx / vmwgfx_resource.c

diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_resource.c b/drivers/gpu/drm/vmwgfx/vmwgfx_resource.c
index 86c5e4c..1c7f09e 100644 (file)
--- a/drivers/gpu/drm/vmwgfx/vmwgfx_resource.c
+++ b/drivers/gpu/drm/vmwgfx/vmwgfx_resource.c
@@ -1190,6 +1190,29 @@ void vmw_resource_unreserve(struct list_head *list)
                write_unlock(lock);
 }
 
+/**
+ * Helper function that looks either a surface or dmabuf.
+ *
+ * The pointer this pointed at by out_surf and out_buf needs to be null.
+ */
+int vmw_user_lookup_handle(struct vmw_private *dev_priv,
+                          struct ttm_object_file *tfile,
+                          uint32_t handle,
+                          struct vmw_surface **out_surf,
+                          struct vmw_dma_buffer **out_buf)
+{
+       int ret;
+
+       BUG_ON(*out_surf || *out_buf);
+
+       ret = vmw_user_surface_lookup_handle(dev_priv, tfile, handle, out_surf);
+       if (!ret)
+               return 0;
+
+       ret = vmw_user_dmabuf_lookup(tfile, handle, out_buf);
+       return ret;
+}
+
 
 int vmw_user_surface_lookup_handle(struct vmw_private *dev_priv,
                                   struct ttm_object_file *tfile,