This is a note to let you know that I've just added the patch titled
drm/radeon: fix semaphore value init
to the 3.14-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-radeon-fix-semaphore-value-init.patch
and it can be found in the queue-3.14 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From f229407da79315c18a2f25f485e1a1b9fdda1e92 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Christian=20K=C3=B6nig?= <christian.koenig@xxxxxxx>
Date: Sun, 7 Sep 2014 12:06:52 +0200
Subject: drm/radeon: fix semaphore value init
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From: =?UTF-8?q?Christian=20K=C3=B6nig?= <christian.koenig@xxxxxxx>
commit f229407da79315c18a2f25f485e1a1b9fdda1e92 upstream.
Semaphore values have 64 bits, not 32. This fixes a very subtle bug
that disables synchronization when the upper 32bits wasn't zero.
Signed-off-by: Christian König <christian.koenig@xxxxxxx>
Reviewed-By: Grigori Goronzy <greg@xxxxxxxxxxxx>
Signed-off-by: Alex Deucher <alexander.deucher@xxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/gpu/drm/radeon/radeon_semaphore.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/drivers/gpu/drm/radeon/radeon_semaphore.c
+++ b/drivers/gpu/drm/radeon/radeon_semaphore.c
@@ -34,7 +34,7 @@
int radeon_semaphore_create(struct radeon_device *rdev,
struct radeon_semaphore **semaphore)
{
- uint32_t *cpu_addr;
+ uint64_t *cpu_addr;
int i, r;
*semaphore = kmalloc(sizeof(struct radeon_semaphore), GFP_KERNEL);
Patches currently in stable-queue which might be from christian.koenig@xxxxxxx are
queue-3.14/drm-radeon-don-t-reset-dma-on-ni-si-init.patch
queue-3.14/drm-radeon-don-t-reset-sdma-on-cik-init.patch
queue-3.14/drm-radeon-fix-pm-handling-in-radeon_gpu_reset.patch
queue-3.14/drm-radeon-fix-semaphore-value-init.patch
queue-3.14/drm-radeon-set-vm-base-addr-using-the-pfp-v2.patch
queue-3.14/drm-radeon-cik-use-a-separate-counter-for-cp-init-timeout.patch
queue-3.14/drm-radeon-don-t-reset-dma-on-r6xx-evergreen-init.patch
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