From 951660dcf5d09f7040ab1d56817ae952a1076978 Mon Sep 17 00:00:00 2001
From: Jani Nikula <jani.nikula@intel.com>
Date: Thu, 7 Jan 2016 10:29:10 +0200
Subject: [PATCH] drm/i915: shut up gen8+ SDE irq dmesg noise, again
We still keep getting
[ 4.249930] [drm:gen8_irq_handler [i915]] *ERROR* The master control interrupt lied (SDE)!
This reverts
commit 820da7ae46332fa709b171eb7ba57cbd023fa6df
Author: Jani Nikula <jani.nikula@intel.com>
Date: Wed Nov 25 16:47:23 2015 +0200
Revert "drm/i915: shut up gen8+ SDE irq dmesg noise"
which in itself is a revert, so this is just doing
commit 97e5ed1111dcc5300a0f59a55248cd243937a8ab
Author: Daniel Vetter <daniel.vetter@ffwll.ch>
Date: Fri Oct 23 10:56:12 2015 +0200
drm/i915: shut up gen8+ SDE irq dmesg noise
all over again. I'll stop pretending I understand what's going on like I
did when I thought I'd fixed this for good in
commit 6a39d7c986be4fd18eb019e9cdbf774ec36c9f77
Author: Jani Nikula <jani.nikula@intel.com>
Date: Wed Nov 25 16:47:22 2015 +0200
drm/i915: fix the SDE irq dmesg warnings properly
Reported-by: Chris Wilson <chris@chris-wilson.co.uk>
Reference: http://mid.gmane.org/20151213124945.GA5715@nuc-i3427.alporthouse.com
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=92084
Cc: drm-intel-fixes@lists.freedesktop.org
Fixes: 820da7ae4633 ("Revert "drm/i915: shut up gen8+ SDE irq dmesg noise"")
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
[Backported to 4.3.y by Josh Boyer <jwboyer@fedoraproject.org>]
---
drivers/gpu/drm/i915/i915_irq.c | 9 +++++++--
1 file changed, 7 insertions(+), 2 deletions(-)
diff --git a/drivers/gpu/drm/i915/i915_irq.c b/drivers/gpu/drm/i915/i915_irq.c
index 39d73dbc1c47..fa7f82d54762 100644
--- a/drivers/gpu/drm/i915/i915_irq.c
+++ b/drivers/gpu/drm/i915/i915_irq.c
@@ -2168,8 +2168,13 @@ static irqreturn_t gen8_irq_handler(int irq, void *arg)
I915_WRITE(SDEIIR, pch_iir);
ret = IRQ_HANDLED;
cpt_irq_handler(dev, pch_iir);
- } else
- DRM_ERROR("The master control interrupt lied (SDE)!\n");
+ } else {
+ /*
+ * Like on previous PCH there seems to be something
+ * fishy going on with forwarding PCH interrupts.
+ */
+ DRM_DEBUG_DRIVER("The master control interrupt lied (SDE)!\n");
+ }
}
--
2.5.0