This is a note to let you know that I've just added the patch titled
drm: Apply range restriction after color adjustment when allocation
to the 4.4-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
drm-apply-range-restriction-after-color-adjustment-when-allocation.patch
and it can be found in the queue-4.4 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From foo@baz Tue Nov 28 10:56:34 CET 2017
From: Chris Wilson <chris@xxxxxxxxxxxxxxxxxx>
Date: Thu, 22 Dec 2016 08:36:38 +0000
Subject: drm: Apply range restriction after color adjustment when allocation
From: Chris Wilson <chris@xxxxxxxxxxxxxxxxxx>
[ Upstream commit 3db93756b501e5f0a3951c79cfa9ed43c26d3455 ]
mm->color_adjust() compares the hole with its neighbouring nodes. They
only abutt before we restrict the hole, so we have to apply color_adjust
before we apply the range restriction.
Signed-off-by: Chris Wilson <chris@xxxxxxxxxxxxxxxxxx>
Reviewed-by: Joonas Lahtinen <joonas.lahtinen@xxxxxxxxxxxxxxx>
Signed-off-by: Daniel Vetter <daniel.vetter@xxxxxxxx>
Link: http://patchwork.freedesktop.org/patch/msgid/20161222083641.2691-36-chris@xxxxxxxxxxxxxxxxxx
Signed-off-by: Sasha Levin <alexander.levin@xxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/gpu/drm/drm_mm.c | 16 ++++++----------
1 file changed, 6 insertions(+), 10 deletions(-)
--- a/drivers/gpu/drm/drm_mm.c
+++ b/drivers/gpu/drm/drm_mm.c
@@ -262,14 +262,12 @@ static void drm_mm_insert_helper_range(s
BUG_ON(!hole_node->hole_follows || node->allocated);
- if (adj_start < start)
- adj_start = start;
- if (adj_end > end)
- adj_end = end;
-
if (mm->color_adjust)
mm->color_adjust(hole_node, color, &adj_start, &adj_end);
+ adj_start = max(adj_start, start);
+ adj_end = min(adj_end, end);
+
if (flags & DRM_MM_CREATE_TOP)
adj_start = adj_end - size;
@@ -475,17 +473,15 @@ static struct drm_mm_node *drm_mm_search
flags & DRM_MM_SEARCH_BELOW) {
u64 hole_size = adj_end - adj_start;
- if (adj_start < start)
- adj_start = start;
- if (adj_end > end)
- adj_end = end;
-
if (mm->color_adjust) {
mm->color_adjust(entry, color, &adj_start, &adj_end);
if (adj_end <= adj_start)
continue;
}
+ adj_start = max(adj_start, start);
+ adj_end = min(adj_end, end);
+
if (!check_free_hole(adj_start, adj_end, size, alignment))
continue;
Patches currently in stable-queue which might be from chris@xxxxxxxxxxxxxxxxxx are
queue-4.4/drm-armada-fix-compile-fail.patch
queue-4.4/drm-apply-range-restriction-after-color-adjustment-when-allocation.patch