Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id ; Sat, 10 Mar 2001 06:34:36 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id ; Sat, 10 Mar 2001 06:34:16 -0500 Received: from router-100M.swansea.linux.org.uk ([194.168.151.17]:59911 "EHLO the-village.bc.nu") by vger.kernel.org with ESMTP id ; Sat, 10 Mar 2001 06:34:07 -0500 Subject: Re: [PATCH]: allow notsc option for buggy cpus To: dhd@eradicator.org (David Huggins-Daines) Date: Sat, 10 Mar 2001 11:36:17 +0000 (GMT) Cc: linux-kernel@vger.kernel.org In-Reply-To: <877l1yxtlg.fsf@monolith.eradicator.org> from "David Huggins-Daines" at Mar 09, 2001 09:09:47 PM X-Mailer: ELM [version 2.5 PL1] MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Message-Id: From: Alan Cox Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org > The 600E's CPU doesn't actually use SpeedStep (it's only a 400MHz > Mobile Pentium2, SpeedStep made its debut with the 600MHz Mobile > Pentium3), but rather some kind of external speed throttling... which > accomplishes basically the same thing, and makes one wonder why Intel > had to go and trademark the idea of incorporating it into the CPU. Its external on the 'speedstep' mostly. Take a look at what little docs there are and you can see the mobile PIII chipset does it > I think this behaviour can be controlled with tpctl for the Thinkpads > and possibly with the Toshiba utils on Toshibas... If tpctl can do it and we know how it does it then that may be sufficient since the kernel init code can use DMI to find the 600E, tpctl copied code to go to high speed, bogomip it and then drop back. - 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/