Subject: Re: AMD Cool'n'Quiet Support
To: IWAMOTO Toshihiro <>
From: Sami Kantoluoto <>
List: port-amd64
Date: 02/25/2005 17:07:40
On Sat, Feb 26, 2005 at 12:00:49AM +0900, IWAMOTO Toshihiro wrote:
> At Thu, 03 Feb 2005 23:08:04 +1300,
> Ernst du Toit wrote:
> > Is the Cool'n'Quiet(tm) Technology from AMD supported on the amd64 port? 
> > It looks like it needs OS support to be full functional. I've been 
> > looking at the archives and changelogs, but can't find a definate answer.
> I wrote a driver several months ago.
> I'm not satisfied with these sysctl nodes and the driver is only
> tested on my system, it should be rather easy to put the code into the
> tree.
> As there's no automatic CPU frequency changing funtionality, I'm not
> sure the code is useful.
> However, I don't have much trouble because 800MHz is suffice for most
> of the time.

I'd be happy to test it on my laptop. Patch available?