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drm/i915: shut up gen8+ SDE irq dmesg noise, again

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We still keep getting

[    4.249930] [drm:gen8_irq_handler [i915]] *ERROR* The master control interrupt lied (SDE)!

This reverts

commit 820da7ae46
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 97e5ed1111
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 6a39d7c986
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: 820da7ae46 ("Revert "drm/i915: shut up gen8+ SDE irq dmesg noise"")
Acked-by: Chris Wilson <chris@chris-wilson.co.uk>
Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1452155350-14658-1-git-send-email-jani.nikula@intel.com
(cherry picked from commit 2dfb0b816d)
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
This commit is contained in:
Jani Nikula 2016-01-07 10:29:10 +02:00
parent 06ef83a705
commit ccda3a728f
1 changed files with 7 additions and 3 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

10
drivers/gpu/drm/i915/i915_irq.c
View File

@ -2414,9 +2414,13 @@ static irqreturn_t gen8_irq_handler(int irq, void *arg)
spt_irq_handler(dev, pch_iir);
else
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");
}
}
I915_WRITE_FW(GEN8_MASTER_IRQ, GEN8_MASTER_IRQ_CONTROL);