Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755271AbXIQJU0 (ORCPT ); Mon, 17 Sep 2007 05:20:26 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1753317AbXIQJUH (ORCPT ); Mon, 17 Sep 2007 05:20:07 -0400 Received: from jurassic.park.msu.ru ([195.208.223.243]:54759 "EHLO jurassic.park.msu.ru" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753169AbXIQJUE (ORCPT ); Mon, 17 Sep 2007 05:20:04 -0400 Date: Mon, 17 Sep 2007 13:20:05 +0400 From: Ivan Kokshaysky To: Robert Hancock Cc: Greg KH , Matthew Wilcox , Shaohua Li , lkml , linux-pci , Andrew Morton , Jesse Barnes Subject: Re: [PATCH]PCI:disable resource decode in PCI BAR detection Message-ID: <20070917132005.A21399@jurassic.park.msu.ru> 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> <46ED692B.3010004@shaw.ca> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline User-Agent: Mutt/1.2.5i In-Reply-To: <46ED692B.3010004@shaw.ca>; from hancockr@shaw.ca on Sun, Sep 16, 2007 at 11:34:35AM -0600 Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 953 Lines: 23 On Sun, Sep 16, 2007 at 11:34:35AM -0600, Robert Hancock wrote: > > The most interesting fact there is that windows *does not* clear > > PCI_COMMAND_MEMORY bits during PCI bus enumeration, so BIOS writers > > have to rely on that. Yet another reason why your patch is unsafe. > > Windows 98 doesn't, it says. That doesn't say anything about what newer > versions of Windows are doing (like Vista, which is the first to > actually use MMCONFIG). But we're not going to drop support for hardware "designed for Windows 98", aren't we? > Check the code. We have a quirk to handle this, in > drivers/usb/host/pci-quirks.c It doesn't help. It's a "final" fixup, so it runs much later than BAR sizing. Ivan. - 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/