DragonFly BSD
DragonFly bugs List (threaded) for 2011-03
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Re: [issue2025] CPU P-States not available to powerd(8)


From: Max Herrgard <herrgard@xxxxxxxxx>
Date: Thu, 17 Mar 2011 18:18:47 +0100

Sepherosa Ziehau wrote:
On Thu, Mar 17, 2011 at 1:33 AM, Max Herrgard (via DragonFly issue
tracker)<bugs@crater.dragonflybsd.org>  wrote:
...
So I guess my box doesn't support it. But why does it then print two available
frequencies (1000 MHz and 1800 MHz)?

The check is conducted according to AMD #32559 page 300.


Well, try this patch:
http://leaf.dragonflybsd.org/~sephe/0Fh_fid.diff

It may be dangerous, if BIOS does generate wrong P-States.

Okay, no luck, patch didn't change anything.


But with powernow.ko loaded I get speeds:

Cool`n'Quiet speeds: 1800 1000 MHz

# sysctl machdep.powernow
machdep.powernow.frequency.target: 1800
machdep.powernow.frequency.current: 1800
machdep.powernow.frequency.available: 1800 1000


Max




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