drm: Export routines for inserting preallocated nodes into the mm manager

Required by i915 in order to avoid the allocation in the middle of
manipulating the drm_mm lists.

Use a pair of stubs to preserve the existing EXPORT_SYMBOLs for
backporting; to be removed later.

Cc: Dave Airlie <airlied@redhat.com>
Cc: dri-devel@lists.freedesktop.org
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Jani Nikula <jani.nikula@intel.com>
[danvet: bikeshedded-away the atomic parameter, it's not yet used
anywhere.]
Acked-by: Dave Airlie <airlied@gmail.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
diff --git a/include/drm/drm_mm.h b/include/drm/drm_mm.h
index 06d7f79..0f4a366 100644
--- a/include/drm/drm_mm.h
+++ b/include/drm/drm_mm.h
@@ -158,12 +158,29 @@
 	return drm_mm_get_block_range_generic(parent, size, alignment, 0,
 						start, end, 1);
 }
-extern int drm_mm_insert_node(struct drm_mm *mm, struct drm_mm_node *node,
-			      unsigned long size, unsigned alignment);
+
+extern int drm_mm_insert_node(struct drm_mm *mm,
+			      struct drm_mm_node *node,
+			      unsigned long size,
+			      unsigned alignment);
 extern int drm_mm_insert_node_in_range(struct drm_mm *mm,
 				       struct drm_mm_node *node,
-				       unsigned long size, unsigned alignment,
-				       unsigned long start, unsigned long end);
+				       unsigned long size,
+				       unsigned alignment,
+				       unsigned long start,
+				       unsigned long end);
+extern int drm_mm_insert_node_generic(struct drm_mm *mm,
+				      struct drm_mm_node *node,
+				      unsigned long size,
+				      unsigned alignment,
+				      unsigned long color);
+extern int drm_mm_insert_node_in_range_generic(struct drm_mm *mm,
+				       struct drm_mm_node *node,
+				       unsigned long size,
+				       unsigned alignment,
+				       unsigned long color,
+				       unsigned long start,
+				       unsigned long end);
 extern void drm_mm_put_block(struct drm_mm_node *cur);
 extern void drm_mm_remove_node(struct drm_mm_node *node);
 extern void drm_mm_replace_node(struct drm_mm_node *old, struct drm_mm_node *new);