[Intel-gfx] [PATCH] drm/i915: avoid unclaimed registers when capturing the error state

[Imre Deak]

On Mon, 2014-06-02 at 14:35 +0100, Chris Wilson wrote:
> On Fri, Dec 20, 2013 at 03:09:41PM -0200, Paulo Zanoni wrote:
> > From: Paulo Zanoni <paulo.r.zanoni at intel.com>
> > 
> > We're iterating over the CPU transcoders, so check for the correct
> > power domain.
> > 
> > This fixes many "unclaimed register" error messages.
> > 
> > This can be reproduced by the IGT test mentioned below, but we still
> > get a FAIL when we run it.
> > 
> > Testcase: igt/kms_lip/flip-vs-panning-vs-hang
> > Signed-off-by: Paulo Zanoni <paulo.r.zanoni at intel.com>
> 
> This of course breaks error capture on every platform that doesn't use
> rpm, and even then is spectacularly useless on those that do.

It is broken atm, because of the bug in
intel_display_power_enabled_sw(). With that fixed these checks should
work everywhere, since POWER_DOMAIN_INIT is always held on platforms w/o
RPM.

--Imre
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