+
+
+/* Not really sure if this is needed, or whether the individual
+ * drivers are happy to talk to the bo functions themselves. In a way
+ * this is what we'd expect from a regular winsys interface.
+ */
+struct nouveau_bo *
+nouveau_screen_bo_new(struct pipe_screen *pscreen, unsigned alignment,
+ unsigned usage, unsigned bind, unsigned size);
+struct nouveau_bo *
+nouveau_screen_bo_user(struct pipe_screen *pscreen, void *ptr, unsigned bytes);
+void *
+nouveau_screen_bo_map(struct pipe_screen *pscreen,
+ struct nouveau_bo *pb,
+ unsigned usage);
+void *
+nouveau_screen_bo_map_range(struct pipe_screen *pscreen, struct nouveau_bo *bo,
+ unsigned offset, unsigned length, unsigned usage);
+void
+nouveau_screen_bo_map_flush_range(struct pipe_screen *pscreen, struct nouveau_bo *bo,
+ unsigned offset, unsigned length);
+void
+nouveau_screen_bo_unmap(struct pipe_screen *pscreen, struct nouveau_bo *bo);
+void
+nouveau_screen_bo_release(struct pipe_screen *pscreen, struct nouveau_bo *bo);
+
+boolean
+nouveau_screen_bo_get_handle(struct pipe_screen *pscreen,
+ struct nouveau_bo *bo,
+ unsigned stride,
+ struct winsys_handle *whandle);
+struct nouveau_bo *
+nouveau_screen_bo_from_handle(struct pipe_screen *pscreen,
+ struct winsys_handle *whandle,
+ unsigned *out_stride);
+
+unsigned int
+nouveau_reference_flags(struct nouveau_bo *bo);
+
+