From mboxrd@z Thu Jan  1 00:00:00 1970
From: Ville =?iso-8859-1?Q?Syrj=E4l=E4?= <ville.syrjala@linux.intel.com>
Subject: Re: 3.17.0-rc1: WARNING: CPU: 1 PID: 1 at
 drivers/gpu/drm/i915/i915_irq.c:139 ironlake_enable_display_irq+0x7f/0x90()
Date: Tue, 26 Aug 2014 14:09:09 +0300
Message-ID: <20140826110909.GJ4193@intel.com>
References: <53FB8087.2070809@hartkopp.net>
 <20140825153615.48bd1e3f@jbarnes-desktop>
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To: Jesse Barnes <jbarnes@virtuousgeek.org>
Cc: Oliver Hartkopp <socketcan@hartkopp.net>, "intel-gfx@lists.freedesktop.org >> intel-gfx" <intel-gfx@lists.freedesktop.org>, Daniel Vetter <daniel.vetter@ffwll.ch>
List-Id: intel-gfx@lists.freedesktop.org

On Mon, Aug 25, 2014 at 03:36:15PM -0700, Jesse Barnes wrote:
> On Mon, 25 Aug 2014 20:29:27 +0200
> Oliver Hartkopp <socketcan@hartkopp.net> wrote:
> =

> > Hi Jesse,
> > =

> > since the i915 stuff for 3.17 was merged I always get this
> > warning on my core i7 with internal Intel HD graphics.
> > =

> > Intel(R) Core(TM) i7 CPU       M 640  @ 2.80GHz
> > =

> > As this warning is triggered by the code which was changed
> > by you and obviously the latest drm-fixes did not solve the
> > issue, it's now time to post it :-) =

> > =

> > My kernel is the latest pull from Linus' mainline tree.
> > =

> > Any idea?
> > =

> > My .config is attached.
> =

> I just dug out my ILK to see if I can reproduce this...  must be
> related to the irq warning changes we moved around; maybe I missed an
> init path on the ILK side.

It's the PCU irq enable. I think I have a patch somewhere for it. Just
forgot to send it out.

-- =

Ville Syrj=E4l=E4
Intel OTC