From owner-freebsd-acpi@FreeBSD.ORG  Fri Jun 29 21:07:46 2012
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From: Sean Bruno <seanbru@yahoo-inc.com>
To: John Baldwin <jhb@freebsd.org>
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	<201206270812.46885.jhb@freebsd.org>
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Date: Fri, 29 Jun 2012 14:06:59 -0700
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Cc: "freebsd-acpi@freebsd.org" <freebsd-acpi@freebsd.org>,
	Andriy Gapon <avg@freebsd.org>
Subject: Re: [CFT] Sparse Cstate Support -- Its possible, that I don't know
 what I'm doing.
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On Wed, 2012-06-27 at 05:12 -0700, John Baldwin wrote:
> On Tuesday, June 26, 2012 8:23:23 pm Sean Bruno wrote:
> > Ok, version 2 now in effect.  I removed the return of BUS_PROBE_DEFAULT
> > and this seems to do the right thing in the cases I have.
> > 
> > If there are no objections to this, I'll chuck it over into -head soonish.
> > 
> > 
> > http://people.freebsd.org/~sbruno/acpi_cpu_cstate_sparse.txt
> 
> Is this for a BIOS that is reporting non-contiguous Cx states or is this a 
> patch to let your custom Intel Cx driver work?  If the latter, I would rather 
> have the driver export a contiguous range of virtual Cx states (what ACPI 
> actually does under the covers) rather than change our code to allow sparse 
> ACPI Cx states.
> 

This patch is for the BIOS that reports non-contiguous ACPI Cx states.
e.g. C1 and C3 with no C2.

The Intel Mwaits/Cx State thing is still a work in progress and not
dependent on this.

Sean