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Date: Tue, 16 Jan 2007 15:22:30 +0100
To: John Baldwin <jhb@freebsd.org>
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From: Bruno Ducrot <ducrot@poupinou.org>
Cc: freebsd-acpi@freebsd.org
Subject: Re: acpi ok but cpufreq not supporting my CPUs
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On Mon, Jan 15, 2007 at 05:39:46PM -0500, John Baldwin wrote:
> On Monday 15 January 2007 11:51, Bruno Ducrot wrote:
> > On Sun, Jan 14, 2007 at 10:02:06PM +0100, Patrick Proniewski wrote:
> > > est0: <Enhanced SpeedStep Frequency Control> on cpu0
> > > est: CPU supports Enhanced Speedstep, but is not recognized.
> > > est: cpu_vendor GenuineIntel, msr a1e0a1e06000a1e
> > > device_attach: est0 attach returned 6
> > > p4tcc0: <CPU Frequency Thermal Control> on cpu0
> > > 
> > > (same for cpu1/2/3)
> > > 
> > > Is there anything I can do to make "est" work with the sossaman CPU ?
> > > 
> > > thanks in advance,
> > > 
> > 
> > It's not possible, AFAIK, to build a static table for your processor,
> > and in that case, we have to use an ACPI table in order to compute
> > a custom table.  If such information is not available, then there
> > is little hope to make est working, being an SMP problem or not is
> > not your problem I'm afraid.  It maybe possible you forgot a
> > BIOS option somewhat so such this configuration will be generated
> > and exposed via ACPI though, or maybe you have to upgrade to a
> > newer BIOS.
> 
> One thing we can do is at least support the two modes encoded into the MSR
> (the highest and lowest IIRC).  I think I have a patch laying around
> somewhere to do that.

Well, I don't remember Intel released such information, but I've not
checked that for a long time, being actually more interrested by AMD
stuff.  Do you have any pointer about that?

-- 
Bruno Ducrot

--  Which is worse:  ignorance or apathy?
--  Don't know.  Don't care.