device cpufreq

Peter Wemm peter at wemm.org
Wed Jun 29 18:59:22 GMT 2005


On Tuesday 24 May 2005 08:59 am, David O'Brien wrote:
> On Thu, May 19, 2005 at 08:31:16PM -0700, Neil Short wrote:
> > I updated to 6.0-CURRENT to test out the powernow
> > drivers on my machine. It's a laptop and the processor
> > is AMD Athlon-xpm.
>
> ..
>
> > carmen# dmesg
> > ...
> > CPU: AMD Athlon(tm) XP Processor 3000+ (1595.89-MHz
> > 686-class CPU)
> >   Origin = "AuthenticAMD"  Id = 0xf48  Stepping = 8
>
> I'm surprised by this output - you have a K8 core CPU (754-pin rev.
> C0). Your BIOS should say something other than "Athlon(tm) XP".  What
> laptop do you have?
>
> > Features=0x78bfbff<FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR
> >,PGE,MCA,CM OV,PAT,PSE36,CLFLUSH,MMX,FXSR,SSE,SSE2>
> >   AMD Features=0xc0500000<NX,AMIE,DSP,3DNow!>
> > ...
> > cpu0 on motherboard
> > powernow0: <PowerNow! K8> on cpu0
>
> This is correct.

If you'll notice, he's got a '686-class' cpu and there is no LM (long 
mode) in the AMD Features flag.  He's running FreeBSD/i386, not /amd64, 
on an Athlon-XP mobile, not an Athlon64.  It might be a cut-down K8 
core, but its not got 64 bit on it.

-- 
Peter Wemm - peter at wemm.org; peter at FreeBSD.org; peter at yahoo-inc.com
"All of this is for nothing if we don't go to the stars" - JMS/B5


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