Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1761275AbYAKOxO (ORCPT ); Fri, 11 Jan 2008 09:53:14 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1758096AbYAKOw7 (ORCPT ); Fri, 11 Jan 2008 09:52:59 -0500 Received: from smtpq2.groni1.gr.home.nl ([213.51.130.201]:42222 "EHLO smtpq2.groni1.gr.home.nl" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1757866AbYAKOw7 (ORCPT ); Fri, 11 Jan 2008 09:52:59 -0500 Message-ID: <478781F1.8040406@keyaccess.nl> Date: Fri, 11 Jan 2008 15:49:21 +0100 From: Rene Herman User-Agent: Thunderbird 2.0.0.9 (X11/20071031) MIME-Version: 1.0 To: "David P. Reed" CC: Zachary Amsden , "H. Peter Anvin" , Christer Weinigel , Ondrej Zary , Bodo Eggert <7eggert@gmx.de>, Ingo Molnar , Alan Cox , Paul Rolland , Pavel Machek , Thomas Gleixner , linux-kernel@vger.kernel.org, Ingo Molnar , rol Subject: Re: [linux-kernel] Re: [PATCH] x86: provide a DMI based port 0x80 I/O delay override. References: <9BdU5-1YW-9@gated-at.bofh.it> <200801081810.58904.linux@rainbow-software.org> <4783B1B2.6070005@reed.com> <200801081838.16241.linux@rainbow-software.org> <4783C4A6.9060402@reed.com> <20080108185120.3ff7ed18@lxorguk.ukuu.org.uk> <4783CBD9.7020709@reed.com> <1199847162.7369.323.camel@bodhitayantram.eng.vmware.com> <47845972.9090803@zytor.com> <1199915614.7369.367.camel@bodhitayantram.eng.vmware.com> <47854916.4080703@reed.com> <1200015388.6192.22.camel@bodhitayantram.eng.vmware.com> <4786DD05.20804@keyaccess.nl> <47877ECD.9060408@reed.com> In-Reply-To: <47877ECD.9060408@reed.com> Content-Type: text/plain; charset=ISO-8859-15; format=flowed Content-Transfer-Encoding: 7bit X-Spam-Score: -1.0 (-) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1078 Lines: 28 On 11-01-08 15:35, David P. Reed wrote: > Rene Herman wrote: >> On 11-01-08 02:36, Zachary Amsden wrote: >> >>> FWIW, I fixed the problem locally by recompiling, changing port 80 to >>> port 84 in io.h; works great, and doesn't conflict with any occupied >>> ports. >> >> Might not give you a "proper" delay though. 0xed should be a better >> choice... >> > I don't think there is any magic here. Golly, you don't think so? Just commenting on his local hack. Port 0x84 is inside the (reserved) DMA page register range and stands a better chance of not being echoed onto ISA by various chipsets than 0xed does due to that. Yes -- on a sane machine it's all useless anyway and with all sane machines this discussion would've ended quite some time ago already. It's the insane, obsolete legacy junk that's the problem. Rene. -- 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/