From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752647AbWAHRdx (ORCPT ); Sun, 8 Jan 2006 12:33:53 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1752648AbWAHRdx (ORCPT ); Sun, 8 Jan 2006 12:33:53 -0500 Received: from mx2.mail.ru ([194.67.23.122]:13096 "EHLO mx2.mail.ru") by vger.kernel.org with ESMTP id S1752647AbWAHRdw (ORCPT ); Sun, 8 Jan 2006 12:33:52 -0500 From: Andrey Borzenkov To: Dave Jones Subject: Re: cpufreq on Toshiba Portege 4000? Date: Sun, 8 Jan 2006 20:33:47 +0300 User-Agent: KMail/1.9.1 Cc: linux-kernel@vger.kernel.org References: <200508012156.18271.arvidjaar@mail.ru> <20050801180639.GA8530@redhat.com> In-Reply-To: <20050801180639.GA8530@redhat.com> Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit Content-Disposition: inline Message-Id: <200601082033.48520.arvidjaar@mail.ru> Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 On Monday 01 August 2005 22:06, Dave Jones wrote: > On Mon, Aug 01, 2005 at 09:56:17PM +0400, Andrey Borzenkov wrote: > > Toshiba documentation claims it supports speedstep technology. It has > > Ali chipset and PIII CPU: > > > > {pts/1}% lspci > > 00:00.0 Host bridge: ALi Corporation M1644/M1644T Northbridge+Trident > > (rev 01) 00:01.0 PCI bridge: ALi Corporation PCI to AGP Controller > > 00:02.0 USB Controller: ALi Corporation USB 1.1 Controller (rev 03) > > 00:04.0 IDE interface: ALi Corporation M5229 IDE (rev c3) > > ... > > > > Any cnahce to use cpufreq (or compatible) technique here? > > Nope, The speedstep-smi driver only works on Intel chipsets. > well, acpi-cpufreq appears to work here. The only drawback is that BIOS supports only 2 states (750 and 500MHz) while Toshiba HCI interface can switch between 8 levels; unfortunately I have no idea what frequencies they have. Is there any utility to measure actual CPU frequency? If I can determine real speed, I could try extend DSDT to support other levels too. TIA - -andrey -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.2 (GNU/Linux) iD8DBQFDwUz8R6LMutpd94wRApWiAKDHggfFN34VTPrC3ABsQO6SY9FztQCeJQCJ aWYCZX6k117FqtdVsY16UVQ= =84r3 -----END PGP SIGNATURE-----