Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755083AbXLWKSS (ORCPT ); Sun, 23 Dec 2007 05:18:18 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1752744AbXLWKSH (ORCPT ); Sun, 23 Dec 2007 05:18:07 -0500 Received: from nikam-dmz.ms.mff.cuni.cz ([195.113.20.16]:40668 "EHLO nikam.ms.mff.cuni.cz" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1752374AbXLWKSG (ORCPT ); Sun, 23 Dec 2007 05:18:06 -0500 Date: Sun, 23 Dec 2007 11:18:02 +0100 From: Martin Mares To: Linus Torvalds Cc: Jeff Garzik , Arjan van de Ven , linux-kernel@vger.kernel.org, gregkh@suse.de, linux-pci@atrey.karlin.mff.cuni.cz, Benjamin Herrenschmidt Subject: Re: [patch] Make MMCONFIG space (extended PCI config space) a driver opt-in issue Message-ID: References: <20071222043139.0cd59804@laptopd505.fenrus.org> <476D1D16.5090703@garzik.org> <20071222064719.73fdd9a4@laptopd505.fenrus.org> <476DB95F.3090801@garzik.org> <476DE07A.4000204@garzik.org> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.5.9i Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 969 Lines: 23 Hi! > The fact is, 99% of the hardware you buy *today* has absolutely zero need > for extended PCI config access. In fact, I would not be surprised at all > if most hardware sold today generally doesn't have *any* devices that even > have config registers in the 0x100+ range. Most PCI Express bridges have root complex control block capabilities which have to reside in the extended range. However I agree that hardware _requiring_ extended config register access is rare. Have a nice fortnight -- Martin `MJ' Mares http://mj.ucw.cz/ Faculty of Math and Physics, Charles University, Prague, Czech Rep., Earth "Dijkstra probably hates me." -- /usr/src/linux/kernel/sched.c -- 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/