drm: Add memory manager debug function

drm_mm_debug_table will print the memory manager state
in table allowing to give a snapshot of the manager at
given point in time. Usefull for debugging.

Signed-off-by: Jerome Glisse <jglisse@redhat.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>

1 files changed, 1 insertions, 0 deletions

diff --git a/include/drm/drm_mm.h b/include/drm/drm_mm.h
index b40b2f062039..4c10be39a43b 100644
--- a/include/drm/drm_mm.h
+++ b/include/drm/drm_mm.h
@@ -133,6 +133,7 @@ static inline struct drm_mm *drm_get_mm(struct drm_mm_node *block)
         return block->mm;
 }
 
+extern void drm_mm_debug_table(struct drm_mm *mm, const char *prefix);
 #ifdef CONFIG_DEBUG_FS
 int drm_mm_dump_table(struct seq_file *m, struct drm_mm *mm);
 #endif