This is a note to let you know that I've just added the patch titled
drm: i915: Wait for fences on new fb, not old
to the 4.8-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-i915-wait-for-fences-on-new-fb-not-old.patch
and it can be found in the queue-4.8 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From 1fb3672eaf6ec95fb34c22734feffd6041531c5b Mon Sep 17 00:00:00 2001
From: Daniel Stone <daniels@xxxxxxxxxxxxx>
Date: Fri, 21 Oct 2016 15:44:54 +0100
Subject: drm: i915: Wait for fences on new fb, not old
From: Daniel Stone <daniels@xxxxxxxxxxxxx>
commit 1fb3672eaf6ec95fb34c22734feffd6041531c5b upstream.
The previous code would wait for fences on the framebuffer from the old
plane state to complete, rather than the new, so you would see tearing
everywhere. Fix this to wait on the new state before we make it active.
Signed-off-by: Daniel Stone <daniels@xxxxxxxxxxxxx>
Fixes: 94f050246b42 ("drm/i915: nonblocking commit")
Cc: Daniel Vetter <daniel.vetter@xxxxxxxxx>
Cc: Maarten Lankhorst <maarten.lankhorst@xxxxxxxxxxxxxxx>
Signed-off-by: Daniel Vetter <daniel.vetter@xxxxxxxx>
Link: http://patchwork.freedesktop.org/patch/msgid/20161021144454.6288-1-daniels@xxxxxxxxxxxxx
(cherry picked from commit 2d2c5ad83f772d7d7b0bb8348ecea42e88f89ab0)
Signed-off-by: Jani Nikula <jani.nikula@xxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/gpu/drm/i915/intel_display.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/drivers/gpu/drm/i915/intel_display.c
+++ b/drivers/gpu/drm/i915/intel_display.c
@@ -13834,7 +13834,7 @@ static void intel_atomic_commit_tail(str
for_each_plane_in_state(state, plane, plane_state, i) {
struct intel_plane_state *intel_plane_state =
- to_intel_plane_state(plane_state);
+ to_intel_plane_state(plane->state);
if (!intel_plane_state->wait_req)
continue;
Patches currently in stable-queue which might be from daniels@xxxxxxxxxxxxx are
queue-4.8/drm-i915-wait-for-fences-on-new-fb-not-old.patch
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