current/SOURCES/0003-sna-Fix-fallback-clearing-of-the-shadow.patch

From c72bb27a3a68ecc616ce2dc8e9a1d20354504562 Mon Sep 17 00:00:00 2001
From: Chris Wilson <chris@chris-wilson.co.uk>
Date: Tue, 18 Apr 2017 20:39:24 +0100
Subject: [PATCH 2/2] sna: Fix fallback clearing of the shadow

The size we need to clear is pitch * height, not pitch * width.

Reported-by: Ilia Mirkin <imirkin@alum.mit.edu>
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
---
 src/sna/sna_display.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/sna/sna_display.c b/src/sna/sna_display.c
index f69bb4d8..795d099b 100644
--- a/src/sna/sna_display.c
+++ b/src/sna/sna_display.c
@@ -2572,7 +2572,7 @@ static void shadow_clear(struct sna *sna,
        if (!ok) {
                void *ptr = kgem_bo_map__gtt(&sna->kgem, bo);
                if (ptr)
-                       memset(ptr, 0, bo->pitch * crtc->mode.HDisplay);
+                       memset(ptr, 0, bo->pitch * crtc->mode.VDisplay);
        }
        sna->mode.shadow_dirty = true;
 }
-- 
2.13.0

1	From c72bb27a3a68ecc616ce2dc8e9a1d20354504562 Mon Sep 17 00:00:00 2001
2	From: Chris Wilson <chris@chris-wilson.co.uk>
3	Date: Tue, 18 Apr 2017 20:39:24 +0100
4	Subject: [PATCH 2/2] sna: Fix fallback clearing of the shadow
5
6	The size we need to clear is pitch * height, not pitch * width.
7
8	Reported-by: Ilia Mirkin <imirkin@alum.mit.edu>
9	Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
10	---
11	src/sna/sna_display.c \| 2 +-
12	1 file changed, 1 insertion(+), 1 deletion(-)
13
14	diff --git a/src/sna/sna_display.c b/src/sna/sna_display.c
15	index f69bb4d8..795d099b 100644
16	--- a/src/sna/sna_display.c
17	+++ b/src/sna/sna_display.c
18	@@ -2572,7 +2572,7 @@ static void shadow_clear(struct sna *sna,
19	if (!ok) {
20	void *ptr = kgem_bo_map__gtt(&sna->kgem, bo);
21	if (ptr)
22	- memset(ptr, 0, bo->pitch * crtc->mode.HDisplay);
23	+ memset(ptr, 0, bo->pitch * crtc->mode.VDisplay);
24	}
25	sna->mode.shadow_dirty = true;
26	}
27	--
28	2.13.0
29