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SubjectRe: [patch 0/6] x86, PAT, CPA: Cleanups and minor bug fixes

* Eric Anholt <> wrote:

> On Thu, 2009-04-09 at 14:26 -0700, 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:
> 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:


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