From owner-freebsd-acpi@FreeBSD.ORG Tue Jan 23 18:19:36 2007 Return-Path: X-Original-To: freebsd-acpi@freebsd.org Delivered-To: freebsd-acpi@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [69.147.83.52]) by hub.freebsd.org (Postfix) with ESMTP id 7D0F816A408 for ; Tue, 23 Jan 2007 18:19:36 +0000 (UTC) (envelope-from jhb@freebsd.org) Received: from server.baldwin.cx (66-23-211-162.clients.speedfactory.net [66.23.211.162]) by mx1.freebsd.org (Postfix) with ESMTP id 2936613C474 for ; Tue, 23 Jan 2007 18:19:36 +0000 (UTC) (envelope-from jhb@freebsd.org) Received: from zion.baldwin.cx (zion.baldwin.cx [192.168.0.7]) (authenticated bits=0) by server.baldwin.cx (8.13.6/8.13.6) with ESMTP id l0NIJVKp009537; Tue, 23 Jan 2007 13:19:32 -0500 (EST) (envelope-from jhb@freebsd.org) From: John Baldwin To: Nate Lawson Date: Tue, 23 Jan 2007 12:30:25 -0500 User-Agent: KMail/1.9.4 References: <45AF925C.9050104@aei.mpg.de> <200701220936.15638.jhb@freebsd.org> <45B5AD64.5060905@root.org> In-Reply-To: <45B5AD64.5060905@root.org> MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit Content-Disposition: inline Message-Id: <200701231230.26244.jhb@freebsd.org> X-Greylist: Sender succeeded SMTP AUTH authentication, not delayed by milter-greylist-2.0.2 (server.baldwin.cx [192.168.0.1]); Tue, 23 Jan 2007 13:19:34 -0500 (EST) X-Virus-Scanned: ClamAV 0.88.3/2480/Tue Jan 23 06:21:51 2007 on server.baldwin.cx X-Virus-Status: Clean X-Spam-Status: No, score=-4.4 required=4.2 tests=ALL_TRUSTED,AWL,BAYES_00 autolearn=ham version=3.1.3 X-Spam-Checker-Version: SpamAssassin 3.1.3 (2006-06-01) on server.baldwin.cx Cc: Joerg Wunsch , freebsd-acpi@freebsd.org Subject: Re: ACPI problems on HP Compaq nx6325 X-BeenThere: freebsd-acpi@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: ACPI and power management development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 23 Jan 2007 18:19:36 -0000 On Tuesday 23 January 2007 01:38, Nate Lawson wrote: > John Baldwin wrote: > > On Sunday 21 January 2007 17:24, Nate Lawson wrote: > >> Joerg Wunsch wrote: > >>> As Nate Lawson wrote: > >>> > >>>>> Have a look at PR i386/104678, and the patches referenced there. > >>>>> Using these patches, my nx6325 works reasonably well. ... > >>>> I looked at this and the solution should be "don't use anything > >>>> other than C1". > >>> Nothing else is supported on the nx6325 anyway, only C1. So that's > >>> certainly not the problem here. > >> If nothing other than C1 is supported, I am almost certain the patch > >> doesn't affect anything. So what problem were you seeing and how is it > >> changed? > > > > These CPUs turn off the lapic timer in C1. > > > > Apologies for my mistake. I see now that there's not an easy fix to > this. Should we make it easier for such people to use some other timer > but not mixed mode? What about the HPET given that these are very new > systems and should have it? What I've been meaning to do is allow them to just use IRQ8 plus IPIs instead of the lapic timer. Another possibility is to use either the HPET or IRQ 8 as a deadline to simulate an lapic timer tick while we are in C1, though IRQ 8 isn't really suited to this for SMP systems. -- John Baldwin