drm: update core memory manager from git drm tree

Remove the memory manager parameter from the put_block function, as this
makes the client code a lot cleaner. Prepare buffer manager for lock and
unlock calls.
Fix buggy aligned allocations.
Remove the stupid root_node field from the core memory manager.
Support multi-page buffer offset alignments
Add improved alignment functionality to the core memory manager.
This makes an allocated block actually align itself and returns any
wasted space to the manager.

Signed-off-by: Dave Airlie <airlied@linux.ie>
diff --git a/drivers/char/drm/drm_sman.c b/drivers/char/drm/drm_sman.c
index 19c81d2..e15db6d 100644
--- a/drivers/char/drm/drm_sman.c
+++ b/drivers/char/drm/drm_sman.c
@@ -101,10 +101,9 @@
 
 static void drm_sman_mm_free(void *private, void *ref)
 {
-	drm_mm_t *mm = (drm_mm_t *) private;
 	drm_mm_node_t *node = (drm_mm_node_t *) ref;
 
-	drm_mm_put_block(mm, node);
+	drm_mm_put_block(node);
 }
 
 static void drm_sman_mm_destroy(void *private)