Re: [issue2025] CPU P-States not available to powerd(8)

[Max Herrgard <herrgard@xxxxxxxxx>]

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