AMD Family 10h cpufreq driver

fluffles.net bsd at fluffles.net
Mon Sep 22 05:35:00 UTC 2008


Hi G. Otsuji,

This is great news, i've bought a Phenom X9350e to power my new high-end
NAS. I'm very keen on testing this driver module.

Only question: how do i compile & install? If you could give me some
pointers that would be great.

Regards,
Veronica



G. Otsuji wrote:
> Hello ,
> I have AMD Phenom x4 9850 BE cpu ,but 
> there was no sysctl oid dev.cpu.0.freq_levels.
> so I read the BKDG (bios and kernel developer guide for AMD Family 10h)
> and finally I reached some result.
> I wrote pstate.c cpufreq driver module. attached in this mail.
> I have tested this module on i386 current/stable, amd64 current/stable.
> and make -j20 buildworld can be done with running powerd.
> This module has capability to down clock to 400MHz.
> but It's slow, so echo "debug.cpufreq.lowest=1200" >>/boot/loader.conf.
> and the reuslt is as follows.
> $ sysctl dev.cpu.0.freq_levels
> dev.cpu.0.freq_levels: 2500/-1 2400/-1 2300/-1 2200/-1 2100/-1 2000/-1 
> 1900/-1 1800/-1 1700/-1 1600/-1 1500/-1 1400/-1 1300/-1 1200/-1
>
> I have enjoying this module in a few days but It's OK.
>
> AMD Family 10h cpu_id's are 100f23,100f2a,100f22.
> I don't have Opteron 13XX 23XX 83XX,Phenom X3, and other Phenom X4,And MP system.
> if you have these cpu's , i would like you to try this module.
> feel free to contact me.
>
> Sincerely,
> G. Otsuji <annona2 at gmail.com>
>
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