Patch "drm/nouveau/tmr: ack interrupt before processing alarms" has been added to the 4.11-stable tree
Subsystems (4)
This is a note to let you know that I've just added the patch titled
drm/nouveau/tmr: ack interrupt before processing alarms
to the 4.11-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-nouveau-tmr-ack-interrupt-before-processing-alarms.patch
and it can be found in the queue-4.11 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree, please let <[email protected]> know about it.
Quoted 1 line
From
3733bd8b407211739e72d051e5f30ad82a52c4bcMon Sep 17 00:00:00 2001
From: Ben Skeggs <[email protected]>
Date: Thu, 11 May 2017 16:53:42 +1000
Subject: drm/nouveau/tmr: ack interrupt before processing alarms
From: Ben Skeggs <[email protected]>
commit 3733bd8b407211739e72d051e5f30ad82a52c4bc upstream.
Fixes a race where we can miss an alarm that triggers while we're already processing previous alarms.
--- drivers/gpu/drm/nouveau/nvkm/subdev/timer/nv04.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
drivers/gpu/drm/nouveau/nvkm/subdev/timer/nv04.c +1 -1
@@ -76,8 +76,8 @@ nv04_timer_intr(struct nvkm_timer *tmr)u32 stat =nvkm_rd32 (device,NV04_PTIMER_INTR_0 );if (stat &0x00000001 ) { -nvkm_timer_alarm_trigger (tmr);nvkm_wr32 (device,NV04_PTIMER_INTR_0 ,0x00000001 ); +nvkm_timer_alarm_trigger (tmr); stat &= ~0x00000001 ; }
Patches currently in stable-queue which might be from [email protected] are
queue-4.11/drm-nouveau-tmr-ack-interrupt-before-processing-alarms.patch queue-4.11/drm-nouveau-tmr-fix-corruption-of-the-pending-list-when-rescheduling-an-alarm.patch queue-4.11/drm-nouveau-tmr-avoid-processing-completed-alarms-when-adding-a-new-one.patch queue-4.11/drm-nouveau-mmu-nv4a-use-nv04-mmu-rather-than-the-nv44-one.patch queue-4.11/drm-nouveau-therm-remove-ineffective-workarounds-for-alarm-bugs.patch queue-4.11/drm-nouveau-kms-nv50-skip-core-channel-cursor-update-on-position-only-changes.patch queue-4.11/drm-nouveau-kms-nv50-fix-source-rect-only-plane-updates.patch queue-4.11/drm-nouveau-tmr-handle-races-with-hw-when-updating-the-next-alarm-time.patch