From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752927Ab0EOABK (ORCPT ); Fri, 14 May 2010 20:01:10 -0400 Received: from cpoproxy2-pub.bluehost.com ([67.222.39.38]:48266 "HELO outbound-mail-158.bluehost.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with SMTP id S1751682Ab0EOABH (ORCPT ); Fri, 14 May 2010 20:01:07 -0400 DomainKey-Signature: a=rsa-sha1; q=dns; c=nofws; s=default; d=virtuousgeek.org; h=Received:Date:From:To:Cc:Subject:Message-ID:In-Reply-To:References:X-Mailer:Mime-Version:Content-Type:Content-Transfer-Encoding:X-Identified-User; b=pPiLu3XTqiZwJs5yih6N3b1CgYS5oVYcV3ditZObixK4yQJR2+mcm9bC7PbiZ8wMimBRXCDKdX4iMRCd3OFX53m3XRw0iaCNMRe4oo0ecZ3qnZs647bf/M7V9041HK2z; Date: Fri, 14 May 2010 17:00:04 -0700 From: Jesse Barnes To: "H. Peter Anvin" Cc: Mike Travis , Bjorn Helgaas , Mike Habeck , Ingo Molnar , Thomas Gleixner , x86@kernel.org, Jacob Pan , Tejun Heo , LKML , Yinghai , "linux-pci@vger.kernel.org" , Myron Stowe Subject: Re: [Patch 1/1] x86 pci: Add option to not assign BAR's if not already assigned Message-ID: <20100514170004.6577415b@virtuousgeek.org> In-Reply-To: <4BEDDF4F.3010902@zytor.com> References: <4BEAF008.9030805@sgi.com> <201005131256.17997.bjorn.helgaas@hp.com> <4BEC5530.1000008@sgi.com> <201005131402.30759.bjorn.helgaas@hp.com> <20100514152509.3aeb37b4@virtuousgeek.org> <4BEDCFD9.7020202@sgi.com> <20100514154706.4f36f4ed@virtuousgeek.org> <4BEDDACD.9040704@zytor.com> <20100514162836.27e0325a@virtuousgeek.org> <4BEDDD77.1050205@zytor.com> <20100514163416.0e940f64@virtuousgeek.org> <4BEDDF4F.3010902@zytor.com> X-Mailer: Claws Mail 3.7.5 (GTK+ 2.18.9; x86_64-redhat-linux-gnu) Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit X-Identified-User: {10642:box514.bluehost.com:virtuous:virtuousgeek.org} {sentby:smtp auth 75.110.194.140 authed with jbarnes@virtuousgeek.org} Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Fri, 14 May 2010 16:39:59 -0700 "H. Peter Anvin" wrote: > On 05/14/2010 04:34 PM, Jesse Barnes wrote: > >> I'm not lamenting that fact, because my experience is that what ends up > >> replacing it is often far worse. Consider UARTs -- no MMU dependencies > >> at all, can be accessed with four lines of assembly, and compare it to > >> EHCI debug port, the driver for which is over 900 lines in the Linux > >> kernel -- and that assumes that you're already in flat mode. > > > > Heh, you're so old and crufty! > > I know. Debugging is so 20th century. Yeah, get with the times. Debugging on today's machines means you have to look up register block offsets in ACPI, run some AML to setup your debug port, and then load a microkernel onto the debug device to get your vnc enabled debug console! -- Jesse Barnes, Intel Open Source Technology Center