[Intel-gfx] 3.17.0-rc1: WARNING: CPU: 1 PID: 1 at drivers/gpu/drm/i915/i915_irq.c:139 ironlake_enable_display_irq+0x7f/0x90()

[Ville Syrjälä]

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 at 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 Syrjälä
Intel OTC