Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932247AbWIJPsr (ORCPT ); Sun, 10 Sep 2006 11:48:47 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S932261AbWIJPsr (ORCPT ); Sun, 10 Sep 2006 11:48:47 -0400 Received: from smtp121.iad.emailsrvr.com ([207.97.245.121]:52410 "EHLO smtp141.iad.emailsrvr.com") by vger.kernel.org with ESMTP id S932247AbWIJPsq (ORCPT ); Sun, 10 Sep 2006 11:48:46 -0400 Message-ID: <450433D5.6010207@gentoo.org> Date: Sun, 10 Sep 2006 11:48:37 -0400 From: Daniel Drake User-Agent: Thunderbird 1.5.0.5 (X11/20060818) MIME-Version: 1.0 To: Greg KH CC: Alan Cox , akpm@osdl.org, torvalds@osdl.org, sergio@sergiomb.no-ip.org, jeff@garzik.org, cw@f00f.org, bjorn.helgaas@hp.com, linux-kernel@vger.kernel.org, harmon@ksu.edu, len.brown@intel.com, vsu@altlinux.ru, liste@jordet.net Subject: Re: [PATCH V3] VIA IRQ quirk behaviour change References: <20060907223313.1770B7B40A0@zog.reactivated.net> <1157811641.6877.5.camel@localhost.localdomain> <4502D35E.8020802@gentoo.org> <1157817836.6877.52.camel@localhost.localdomain> <45033370.8040005@gentoo.org> <1157848272.6877.108.camel@localhost.localdomain> <20060910002112.GA20672@kroah.com> In-Reply-To: <20060910002112.GA20672@kroah.com> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1087 Lines: 25 Greg KH wrote: > On Sun, Sep 10, 2006 at 01:31:12AM +0100, Alan Cox wrote: >> VIA have always told me that "ACPI handles this" and we don't need >> quirks. Various chips have different IRQ routing logic and it's all a >> bit weird if we don't use ACPI and/or BIOS routing. > > So why isn't acpi handling all of this for us? Do people not want to > use acpi for some reason? It doesn't appear to be this simple in reality. Chris has reports that indeed enabling ACPI avoids the needs for quirks, but Gentoo have reports that quirks are *only* required in ACPI mode. Sergio is of the opinion that quirks are not required in IO-APIC setups, but Stian has shown that quirks are required on legacy interrupts even with a working IO-APIC setup. Len Brown has some notes to add: http://lists.openwall.net/linux-kernel/2006/07/14/147 Daniel - 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/