This is a note to let you know that I've just added the patch titled
drm/radeon/si_dpm: Limit clocks on HD86xx part
to the 4.4-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-si_dpm-limit-clocks-on-hd86xx-part.patch
and it can be found in the queue-4.4 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From fb9a5b0c1c9893db2e0d18544fd49e19d784a87d Mon Sep 17 00:00:00 2001
From: Tom St Denis <tom.stdenis@xxxxxxx>
Date: Thu, 13 Oct 2016 12:38:07 -0400
Subject: drm/radeon/si_dpm: Limit clocks on HD86xx part
From: Tom St Denis <tom.stdenis@xxxxxxx>
commit fb9a5b0c1c9893db2e0d18544fd49e19d784a87d upstream.
Limit clocks on a specific HD86xx part to avoid
crashes (while awaiting an appropriate PP fix).
Signed-off-by: Tom St Denis <tom.stdenis@xxxxxxx>
Reviewed-by: Alex Deucher <alexander.deucher@xxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/gpu/drm/radeon/si_dpm.c | 6 ++++++
1 file changed, 6 insertions(+)
--- a/drivers/gpu/drm/radeon/si_dpm.c
+++ b/drivers/gpu/drm/radeon/si_dpm.c
@@ -3021,6 +3021,12 @@ static void si_apply_state_adjust_rules(
max_sclk = 75000;
max_mclk = 80000;
}
+ /* limit clocks on HD8600 series */
+ if (rdev->pdev->device == 0x6660 &&
+ rdev->pdev->revision == 0x83) {
+ max_sclk = 75000;
+ max_mclk = 80000;
+ }
if (rps->vce_active) {
rps->evclk = rdev->pm.dpm.vce_states[rdev->pm.dpm.vce_level].evclk;
Patches currently in stable-queue which might be from tom.stdenis@xxxxxxx are
queue-4.4/drm-radeon-si_dpm-limit-clocks-on-hd86xx-part.patch
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