[PATCH] drm/mm: Adjust start/end for coloring first

[Chris Wilson <chris@chris-wilson.co.uk>]

The current user of the coloring will adjust the end points of the node
to leave a hole between disjoint memory types. This adjustment must be
performed first or else the derived size will conflict with the
adjustment and trigger the BUG_ON sanity checks that the node is within
bounds.

Fixes regression from
commit 62347f9e0f81d50e9b0923ec8a192f60ab7a1801
Author: Lauri Kasanen <cand@gmx.com>
Date:   Wed Apr 2 20:03:57 2014 +0300

    drm: Add support for two-ended allocation, v3

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
---
 drivers/gpu/drm/drm_mm.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/gpu/drm/drm_mm.c b/drivers/gpu/drm/drm_mm.c
index 04a209e2b66d..911863bed9f3 100644
--- a/drivers/gpu/drm/drm_mm.c
+++ b/drivers/gpu/drm/drm_mm.c
@@ -264,12 +264,12 @@ static void drm_mm_insert_helper_range(struct drm_mm_node *hole_node,
 	if (adj_end > end)
 		adj_end = end;
 
-	if (flags & DRM_MM_CREATE_TOP)
-		adj_start = adj_end - size;
-
 	if (mm->color_adjust)
 		mm->color_adjust(hole_node, color, &adj_start, &adj_end);
 
+	if (flags & DRM_MM_CREATE_TOP)
+		adj_start = adj_end - size;
+
 	if (alignment) {
 		unsigned tmp = adj_start % alignment;
 		if (tmp) {
-- 
2.0.0.rc2