Attachment 57134 Details for Bug 44867 – Patch to only allow the activation of RC6 an not RC6p

[patch] Patch to only allow the activation of RC6 an not RC6p

0001-drm-i915-Disable-deep-RC6.patch (text/plain), 1.14 KB, created by Thomas on 2012-02-16 01:32:38 UTC

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Creator: Thomas

Created: 2012-02-16 01:32:38 UTC

Size: 1.14 KB

patch

obsolete

>From c5c9f5a73cbdfc523888391f5d7df081a0470026 Mon Sep 17 00:00:00 2001
>From: Thomas Courbon <thcourbon@gmail.com>
>Date: Thu, 16 Feb 2012 10:00:10 +0100
>Subject: [PATCH 1/1] drm/i915: Disable deep RC6
>
>By default when RC6 was enabled both RC6 and RC6p were active which cause
>some machine geared with sandy bridge chip to crash. As it seems RC6p is
>involved this patch prevent its activation and just enable shallow RC6
>when the kernel is given i915.i915_enable_rc6=1.
>
>Signed-off-by: Thomas Courbon <thcourbon@gmail.com>
>---
> drivers/gpu/drm/i915/intel_display.c |    3 +--
> 1 files changed, 1 insertions(+), 2 deletions(-)
>
>diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c
>index 2a3f707..2ecae56e 100644
>--- a/drivers/gpu/drm/i915/intel_display.c
>+++ b/drivers/gpu/drm/i915/intel_display.c
>@@ -8179,8 +8179,7 @@ void gen6_enable_rps(struct drm_i915_private *dev_priv)
>	I915_WRITE(GEN6_RC6pp_THRESHOLD, 64000); /* unused */
>
>	if (intel_enable_rc6(dev_priv->dev))
>-		rc6_mask = GEN6_RC_CTL_RC6p_ENABLE |
>-			GEN6_RC_CTL_RC6_ENABLE;
>+		rc6_mask = GEN6_RC_CTL_RC6_ENABLE;
>
>	I915_WRITE(GEN6_RC_CONTROL,
>		   rc6_mask |
>--
>1.7.9.1

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Attachments on bug 44867: 55681 | 55683 | 56336 | 56661 | 57047 | 57048 | 57134 | 57305 | 57369

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