From owner-freebsd-current@FreeBSD.ORG Fri Mar 18 17:42:28 2005 Return-Path: Delivered-To: freebsd-current@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 8B9BD16A4CE; Fri, 18 Mar 2005 17:42:28 +0000 (GMT) Received: from pd3mo2so.prod.shaw.ca (shawidc-mo1.cg.shawcable.net [24.71.223.10]) by mx1.FreeBSD.org (Postfix) with ESMTP id 4903643D1F; Fri, 18 Mar 2005 17:42:28 +0000 (GMT) (envelope-from cperciva@freebsd.org) Received: from pd5mr3so.prod.shaw.ca (pd5mr3so-qfe3.prod.shaw.ca [10.0.141.144]) by l-daemon (Sun ONE Messaging Server 6.0 HotFix 1.01 (built Mar 15 2004)) with ESMTP id <0IDK004066HUYN89@l-daemon>; Fri, 18 Mar 2005 10:41:54 -0700 (MST) Received: from pn2ml4so.prod.shaw.ca ([10.0.121.148]) by pd5mr3so.prod.shaw.ca (Sun ONE Messaging Server 6.0 HotFix 1.01 (built Mar 15 2004)) with ESMTP id <0IDK0038A6HOSZ60@pd5mr3so.prod.shaw.ca>; Fri, 18 Mar 2005 10:41:48 -0700 (MST) Received: from [192.168.0.60] (S0106006067227a4a.vc.shawcable.net [24.87.209.6]) by l-daemon (iPlanet Messaging Server 5.2 HotFix 1.18 (built Jul 28 2003)) with ESMTP id <0IDK00G0M6HNPF@l-daemon>; Fri, 18 Mar 2005 10:41:48 -0700 (MST) Date: Fri, 18 Mar 2005 09:41:47 -0800 From: Colin Percival In-reply-to: <423ADF0D.5090605@centtech.com> To: Eric Anderson Message-id: <423B12DB.2030409@freebsd.org> MIME-version: 1.0 Content-type: text/plain; charset=ISO-8859-1 Content-transfer-encoding: 7bit X-Accept-Language: en-us, en X-Enigmail-Version: 0.90.1.0 X-Enigmail-Supports: pgp-inline, pgp-mime References: <423AD2F3.50602@centtech.com> <423AD585.2010500@centtech.com> <423ADF0D.5090605@centtech.com> User-Agent: Mozilla Thunderbird 1.0 (X11/20050314) cc: freebsd-acpi@freebsd.org cc: FreeBSD Current Subject: Re: Pentium-M - not recognized? X-BeenThere: freebsd-current@freebsd.org X-Mailman-Version: 2.1.1 Precedence: list List-Id: Discussions about the use of FreeBSD-current List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 18 Mar 2005 17:42:28 -0000 Eric Anderson wrote: > Eric Anderson wrote: >> Eric Anderson wrote: >>> I have a Dell Latitude D610 laptop, and my kernel says: >>> >>> CPU claims to support Enhanced Speedstep, but is not recognized. >>> Please update driver or contact the maintainer. >>> cpu_vendor = GenuineIntel msr = 6120e2606000e26, bus_clk = 64 >>> >>> What does that mean to me? How can I fix it? If the BIOS knows about enhanced speedstep and ACPI (which it should) then you can probably get access to the different settings via the acpi_perf. >> I hate when I reply to myself, but.. After doing some more research, I >> see that I have a Pentium M 750, but in cpufreq/est.c, I notice there >> isn't an entry for it. >> ... > I think a section for the 750 needs to > be added, but I'm not sure what to add exactly, and I'm now afraid I'll > light my computer on fire if I try. That's exactly the problem I have. In earlier Pentium M processors, Intel helpfully published a complete listing of the frequency/voltage pairs, which I encoded into est.c. With the 133MHz Pentium M processors, Intel decided not to publish all this; instead, they've just published the lowest and highest pairs. I am told that the data I need is available in the "Prescott, Nocona, and Potomac Processor BIOS Writer's Guide", but I can't get my hands on that since I haven't signed an NDA, and I've been too busy lately to work out how one goes about the process of obtaining and signing an Intel NDA. (I have no objection in principle to NDAs, as long as I'm able to publish the resulting code.) Colin Percival