Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752957AbXIPTxQ (ORCPT ); Sun, 16 Sep 2007 15:53:16 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1751429AbXIPTxB (ORCPT ); Sun, 16 Sep 2007 15:53:01 -0400 Received: from palinux.external.hp.com ([192.25.206.14]:52855 "EHLO mail.parisc-linux.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751027AbXIPTxA (ORCPT ); Sun, 16 Sep 2007 15:53:00 -0400 Date: Sun, 16 Sep 2007 13:52:59 -0600 From: Matthew Wilcox To: Ivan Kokshaysky Cc: Robert Hancock , Greg KH , Shaohua Li , lkml , linux-pci , Andrew Morton , Jesse Barnes Subject: Re: [PATCH]PCI:disable resource decode in PCI BAR detection Message-ID: <20070916195258.GC28350@parisc-linux.org> References: <46EA00DA.6010704@shaw.ca> <20070914151401.A5586@jurassic.park.msu.ru> <46EA9B23.7030709@shaw.ca> <20070914192913.A6668@jurassic.park.msu.ru> <46EB1F16.8060209@shaw.ca> <20070916151355.A18508@jurassic.park.msu.ru> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20070916151355.A18508@jurassic.park.msu.ru> User-Agent: Mutt/1.5.13 (2006-08-11) Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1245 Lines: 25 On Sun, Sep 16, 2007 at 03:13:55PM +0400, Ivan Kokshaysky wrote: > Another possible solution is not to use mmconfig for bar sizing at all, > if it's *that* broken. It would be more complicated though, since it > probably requires changes to all architectures. I don't think it would be that complicated. We could just delay probing for mmconfig until after the pci bus probes are done. No changes to other architectures needed. I'm really disappointed with mmconfig. Here was a great chance to get rid of all the sucky performance problems of the past, and BIOS writers and chipset designers have fucked up the implementation so much that it's now the ugliest method for getting to pci config space. And it's the *only* method of getting to extended config space. -- Intel are signing my paycheques ... these opinions are still mine "Bill, look, we understand that you're interested in selling us this operating system, but compare it to ours. We can't possibly take such a retrograde step." - 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/