linux-kernel - Re: [patch 0/6] x86, PAT, CPA: Cleanups and minor bug fixes

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Message-ID: <20090411070035.GB11799@elte.hu>
Date:	Sat, 11 Apr 2009 09:00:35 +0200
From:	Ingo Molnar <mingo@...e.hu>
To:	Eric Anholt <eric@...olt.net>
Cc:	venkatesh.pallipadi@...el.com, tglx@...utronix.de, hpa@...or.com,
	linux-kernel@...r.kernel.org,
	Suresh Siddha <suresh.b.siddha@...el.com>
Subject: Re: [patch 0/6] x86, PAT, CPA: Cleanups and minor bug fixes


* Eric Anholt <eric@...olt.net> wrote:

> On Thu, 2009-04-09 at 14:26 -0700, venkatesh.pallipadi@...el.com wrote:
> > This patchset contains cleanups and minor bug fixes in x86 PAT and CPA
> > related code. The bugs were mostly found by code inspection. There
> > should not be any functionality changes with this patchset.
> 
> I've been curious, what are you using to test PAT changes for 
> regressions?  I've got some regression tests at:
> 
> http://cgit.freedesktop.org/xorg/app/intel-gpu-tools/
> 
> Requires KMS enabled and master of libdrm, but after that you can 
> sudo make check, and it tests execution of several DRM paths 
> without requiring X.  In benchmarks/ there are a few 
> microbenchmarks of various mapping types, which has been useful in 
> making sure that we're ending up with the right PTEs.

Looks really nice! Regarding libdrm, is there a version cutoff from 
where it is expected to work just fine? I've got this version: 
libdrm-2.4.6-3.fc11.x86_64.

	Ingo
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