From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id ; Mon, 11 Dec 2000 17:10:14 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id ; Mon, 11 Dec 2000 17:10:05 -0500 Received: from [194.213.32.137] ([194.213.32.137]:1028 "EHLO bug.ucw.cz") by vger.kernel.org with ESMTP id ; Mon, 11 Dec 2000 17:09:48 -0500 Message-ID: <20001210231255.A2332@bug.ucw.cz> Date: Sun, 10 Dec 2000 23:12:55 +0100 From: Pavel Machek To: Janne Pänkälä , linux-kernel@vger.kernel.org Subject: Re: K6-2+ and MSR registers (PowerNOW) In-Reply-To: Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii X-Mailer: Mutt 0.93i In-Reply-To: ; from Janne Pänkälä on Fri, Dec 08, 2000 at 04:34:32PM +0200 Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Hi! > Bought myself this new CPU that is mainly available for laptops. > > I have Tyan S1590 board which BIOS won't POST if I set cpu speed (it's > 500Mhz chip) >300Mhz. This won't matter much in windows since I can there > use graphical utility which allows one to set whe CPU clock multiplier in > flight as 2.0 - 6.0. But since my machine is Linux like 98% of the time > I'd like to do same in linux. > > Things I have considered are. Do I need to recalculate BoGos? Do I need to > reserve the IO space to access it from user space. You should recalculate bogomips. Hell _may_ break loose if you don't, but it probably will not. > In the end it would be nice to do proc entry or user space program that > allows one to [sg]et cpu speed and other PowerNOW properties. Hmm, it would be nice if generic interface existed: my philips velo 1 can set cpu speed in range 2MHz .. 40MHz. Pavel -- I'm pavel@ucw.cz. "In my country we have almost anarchy and I don't care." Panos Katsaloulis describing me w.r.t. patents at discuss@linmodems.org - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org Please read the FAQ at http://www.tux.org/lkml/