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>

1 files changed, 21 insertions, 4 deletions

diff --git a/include/drm/drm_mm.h b/include/drm/drm_mm.h
index 06d7f798a08c..0f4a366f6fa6 100644
--- a/include/drm/drm_mm.h
+++ b/include/drm/drm_mm.h
@@ -158,12 +158,29 @@ static inline struct drm_mm_node *drm_mm_get_block_atomic_range(
         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);