This is a note to let you know that I've just added the patch titled
drm/radeon/uvd: use lower clocks on old UVD to boot v2
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-uvd-use-lower-clocks-on-old-uvd-to-boot-v2.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 e45187620f9fc103edf68fa5ea78e73033e1668c Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Christian=20K=C3=B6nig?= <christian.koenig@xxxxxxx>
Date: Thu, 10 Apr 2014 16:11:36 +0200
Subject: drm/radeon/uvd: use lower clocks on old UVD to boot v2
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From: =?UTF-8?q?Christian=20K=C3=B6nig?= <christian.koenig@xxxxxxx>
commit e45187620f9fc103edf68fa5ea78e73033e1668c upstream.
Some RV7xx generation hardware crashes after you
raise the UVD clocks for the first time. Try to
avoid this by using the lower clocks to boot these.
Workaround for: https://bugzilla.kernel.org/show_bug.cgi?id=71891
v2: lower clocks on IB test as well
Signed-off-by: Christian König <christian.koenig@xxxxxxx>
Reviewed-by: Alex Deucher <alexander.deucher@xxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/gpu/drm/radeon/uvd_v1_0.c | 10 ++++++++--
1 file changed, 8 insertions(+), 2 deletions(-)
--- a/drivers/gpu/drm/radeon/uvd_v1_0.c
+++ b/drivers/gpu/drm/radeon/uvd_v1_0.c
@@ -83,7 +83,10 @@ int uvd_v1_0_init(struct radeon_device *
int r;
/* raise clocks while booting up the VCPU */
- radeon_set_uvd_clocks(rdev, 53300, 40000);
+ if (rdev->family < CHIP_RV740)
+ radeon_set_uvd_clocks(rdev, 10000, 10000);
+ else
+ radeon_set_uvd_clocks(rdev, 53300, 40000);
r = uvd_v1_0_start(rdev);
if (r)
@@ -407,7 +410,10 @@ int uvd_v1_0_ib_test(struct radeon_devic
struct radeon_fence *fence = NULL;
int r;
- r = radeon_set_uvd_clocks(rdev, 53300, 40000);
+ if (rdev->family < CHIP_RV740)
+ r = radeon_set_uvd_clocks(rdev, 10000, 10000);
+ else
+ r = radeon_set_uvd_clocks(rdev, 53300, 40000);
if (r) {
DRM_ERROR("radeon: failed to raise UVD clocks (%d).\n", r);
return r;
Patches currently in stable-queue which might be from christian.koenig@xxxxxxx are
queue-3.14/drm-radeon-fix-audio-pin-counts-for-dce6-v2.patch
queue-3.14/drm-radeon-use-pflip-irq-on-r600-v2.patch
queue-3.14/drm-radeon-check-buffer-relocation-offset.patch
queue-3.14/drm-radeon-uvd-use-lower-clocks-on-old-uvd-to-boot-v2.patch
queue-3.14/drm-radeon-fix-count-in-cik_sdma_ring_test.patch
--
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