This is a note to let you know that I've just added the patch titled
drm/i915: Increase the RC6p threshold.
to the 3.4-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-i915-increase-the-rc6p-threshold.patch
and it can be found in the queue-3.4 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From 0920a48719f1ceefc909387a64f97563848c7854 Mon Sep 17 00:00:00 2001
From: Stéphane Marchesin <marcheu@xxxxxxxxxxxx>
Date: Tue, 29 Jan 2013 19:41:59 -0800
Subject: drm/i915: Increase the RC6p threshold.
From: Stéphane Marchesin <marcheu@xxxxxxxxxxxx>
commit 0920a48719f1ceefc909387a64f97563848c7854 upstream.
This increases GEN6_RC6p_THRESHOLD from 100000 to 150000. For some
reason this avoids the gen6_gt_check_fifodbg.isra warnings and
associated GPU lockups, which makes my ivy bridge machine stable.
Signed-off-by: Stéphane Marchesin <marcheu@xxxxxxxxxxxx>
Acked-by: Jesse Barnes <jbarnes@xxxxxxxxxxxxxxxx>
Signed-off-by: Daniel Vetter <daniel.vetter@xxxxxxxx>
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
@@ -8364,7 +8364,7 @@ void gen6_enable_rps(struct drm_i915_pri
I915_WRITE(GEN6_RC_SLEEP, 0);
I915_WRITE(GEN6_RC1e_THRESHOLD, 1000);
I915_WRITE(GEN6_RC6_THRESHOLD, 50000);
- I915_WRITE(GEN6_RC6p_THRESHOLD, 100000);
+ I915_WRITE(GEN6_RC6p_THRESHOLD, 150000);
I915_WRITE(GEN6_RC6pp_THRESHOLD, 64000); /* unused */
rc6_mode = intel_enable_rc6(dev_priv->dev);
Patches currently in stable-queue which might be from marcheu@xxxxxxxxxxxx are
queue-3.4/drm-i915-increase-the-rc6p-threshold.patch
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