Subject: Re: RFC: est.c driver synced with OpenBSD.
To: Juan RP <email@example.com>
From: Simon Burge <simonb@NetBSD.org>
Date: 08/29/2006 22:03:50
Juan RP wrote:
> Without knowing the tables will be difficult to support by this driver. AFAIK
> the only way to know is to use ACPI and evaluate _PSS/_PST.
> I googled about Core Duo processors but couldn't find anything useful
> for the driver...
With your updated patch from
I now see:
cpu0: Enhanced SpeedStep (1404 mV) cpu0: unknown Enhanced SpeedStep CPU.
cpu0: using only highest and lowest power states.
cpu0: Enhanced SpeedStep frequencies available (MHz): 1833 1000
and sysctl says:
machdep.est.frequency.target = 1000
machdep.est.frequency.current = 1000
machdep.est.frequency.available = 1833 1000
It defaulted to 1830 MHz, and I've since changed it 1000 MHz. The
lmbench "mhz" program says the frequencies appear to be correct.