Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1761114AbYC0SIR (ORCPT ); Thu, 27 Mar 2008 14:08:17 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1752183AbYC0SIE (ORCPT ); Thu, 27 Mar 2008 14:08:04 -0400 Received: from ti-out-0910.google.com ([209.85.142.191]:18839 "EHLO ti-out-0910.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755218AbYC0SIB (ORCPT ); Thu, 27 Mar 2008 14:08:01 -0400 DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=beta; h=message-id:date:from:to:subject:cc:in-reply-to:mime-version:content-type:content-transfer-encoding:content-disposition:references; b=ULwAfVGr1I9E6y8geC9RQCNJzsy/kaiXHRz6Y7xziFrHhDQEMTCzxX1UypMXZRc+QnpdIrl/NvLrAtmnORnBRXCnaCjwSYmH/ljb4JpmKuztkz8qO+CMvqTRnAR2R1M6/hMR7e0iKjEwJ561LMFeAer/nQXsJgZlBXzTnOgRQjM= Message-ID: <86802c440803271107m4327554ct688738c80748d2d7@mail.gmail.com> Date: Thu, 27 Mar 2008 11:07:58 -0700 From: "Yinghai Lu" To: "Gary Hade" Subject: Re: [PATCH] x86/pci: add pci=skip_isa_align command lines. Cc: "Ingo Molnar" , "Thomas Gleixner" , "H. Peter Anvin" , "Andrew Morton" , "Greg Kroah-Hartman" , "kernel list" In-Reply-To: <20080327175912.GA9684@us.ibm.com> MIME-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Content-Disposition: inline References: <200803270131.18885.yhlu.kernel@gmail.com> <20080327084557.GH15626@elte.hu> <20080327175912.GA9684@us.ibm.com> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1971 Lines: 42 On Thu, Mar 27, 2008 at 10:59 AM, Gary Hade wrote: > > On Thu, Mar 27, 2008 at 09:45:57AM +0100, Ingo Molnar wrote: > > > > * Yinghai Lu wrote: > > > > > [PATCH] x86/pci: add pci=skip_isa_align command lines. > > > > > > so we don't align the io port start address for pci cards. > > > > > > also move out dmi check out acpi.c, because it has nothing to do with > > > acpi. it could spare some calling when we have several peer root > > > buses. > > > > i like this feature, and i've applied your patch to x86.git for testing, > > but i'd like to hear what the ACPI and PCI guys think about this. > > > > Also, we should try as hard as possible to make it a blacklist instead > > of a whitelist? It would be cool to support more PCI cards/devices on > > all new(-ish) systems by default and if we didnt have to maintain the > > DMI whitelist for eternity. (a whitelist will always be incomplete and > > will lag behind reality) > > Ingo, This is a great idea. I was the guy that added the whitelist > and ISA alignment avoidance code but have also been concerned about > the headache of keeping whitelist current in mainline and Distro > releases as new systems are introduced. When I made the change I > assumed (appearently incorrectly) that there were way too many > existing systems requiring the alignment to even consider the > blacklist approach. Do you have any suggestions on how to identify > systems to include in the blacklist? ...or would we just boldly make > non-alignment the default, provide an empty blacklist, and let > breakage identify those systems that need to be blacklisted? at least to use blacklist with x86_64 YH -- 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/