Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id ; Thu, 29 Aug 2002 15:16:46 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id ; Thu, 29 Aug 2002 15:16:46 -0400 Received: from pc1-cwma1-5-cust128.swa.cable.ntl.com ([80.5.120.128]:55548 "EHLO irongate.swansea.linux.org.uk") by vger.kernel.org with ESMTP id ; Thu, 29 Aug 2002 15:16:45 -0400 Subject: Re: [PATCH][2.5.32] CPU frequency and voltage scaling (0/4) From: Alan Cox To: Linus Torvalds Cc: linux-kernel@vger.kernel.org In-Reply-To: References: <1030618420.7290.112.camel@irongate.swansea.linux.org.uk> Content-Type: text/plain Content-Transfer-Encoding: 7bit X-Mailer: Ximian Evolution 1.0.8 (1.0.8-6) Date: 29 Aug 2002 20:24:14 +0100 Message-Id: <1030649054.7190.164.camel@irongate.swansea.linux.org.uk> Mime-Version: 1.0 Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1036 Lines: 24 On Thu, 2002-08-29 at 19:47, Linus Torvalds wrote: > Hmm.. I would assume that you'd just use the high frequency for that? That doesnt work if Im trying to keep the machine running slowly at low power but still want the I/O to work. I guess its fudgeable however and the battery policy is enough info. > I don't know the exact details of what kinds of frequencies the Geode > supports, but it sounds to me like you don't really need another > frequency value.. It tops out at about 300Mhz. Life gets excessively interesting because about half the I/O on the Geode is imaginary and caused by SMM traps. When power saving you normally set the geode to run slowly but spike hard to full power when faking hardware. WIthout that some stuff like the SB emulation doesnt work very well. Alan - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/