Attachment 122664 Details for Bug 94161 – drm/i915/skl: Use WaRsDisableCoarsePowerGating for all revs

[patch] drm/i915/skl: Use WaRsDisableCoarsePowerGating for all revs

0001-drm-i915-skl-Use-WaRsDisableCoarsePowerGating-for-al.patch (text/plain), 1.26 KB, created by Mika Kuoppala on 2016-04-01 15:18:55 UTC

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Creator: Mika Kuoppala

Created: 2016-04-01 15:18:55 UTC

Size: 1.26 KB

patch

obsolete

>From 26b9f5f11f1ae85710add66523b8885ea13ba4ea Mon Sep 17 00:00:00 2001
>From: Mika Kuoppala <mika.kuoppala@intel.com>
>Date: Fri, 1 Apr 2016 18:03:22 +0300
>Subject: [PATCH] drm/i915/skl: Use WaRsDisableCoarsePowerGating for all revs
>
>For all gt3 and gt4 variants, extend the usage of
>this workaround for all revisions. Without this some
>gt3/gt4 up to rev 0xa can system hang.
>
>References: https://bugs.freedesktop.org/show_bug.cgi?id=94161
>Signed-off-by: Mika Kuoppala <mika.kuoppala@intel.com>
>---
> drivers/gpu/drm/i915/i915_drv.h | 4 ++--
> 1 file changed, 2 insertions(+), 2 deletions(-)
>
>diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h
>index d3ebb2fa46fa..c51f92b0335e 100644
>--- a/drivers/gpu/drm/i915/i915_drv.h
>+++ b/drivers/gpu/drm/i915/i915_drv.h
>@@ -2624,8 +2624,8 @@ struct drm_i915_cmd_table {
> 
> /* WaRsDisableCoarsePowerGating:skl,bxt */
> #define NEEDS_WaRsDisableCoarsePowerGating(dev) (IS_BXT_REVID(dev, 0, BXT_REVID_A1) || \
>-						 ((IS_SKL_GT3(dev) || IS_SKL_GT4(dev)) && \
>-						  IS_SKL_REVID(dev, 0, SKL_REVID_F0)))
>+						 IS_SKL_GT3(dev) || IS_SKL_GT4(dev))
>+
> /*
>  * dp aux and gmbus irq on gen4 seems to be able to generate legacy interrupts
>  * even when in MSI mode. This results in spurious interrupt warnings if the
>-- 
>2.5.0
>

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