Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S266021AbUAQJQ5 (ORCPT ); Sat, 17 Jan 2004 04:16:57 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S266022AbUAQJQ5 (ORCPT ); Sat, 17 Jan 2004 04:16:57 -0500 Received: from amalthea.dnx.de ([193.108.181.146]:41355 "EHLO amalthea.dnx.de") by vger.kernel.org with ESMTP id S266021AbUAQJQz (ORCPT ); Sat, 17 Jan 2004 04:16:55 -0500 Date: Sat, 17 Jan 2004 10:13:37 +0100 From: Robert Schwebel To: Adrian Bunk Cc: "Richard B. Johnson" , Juergen Beisert , cliff white , piggin@cyberone.com.au, mpm@selenic.com, linux-kernel@vger.kernel.org Subject: Re: [1/4] better i386 CPU selection Message-ID: <20040117091337.GZ5139@pengutronix.de> References: <20040106054859.GA18208@waste.org> <3FFA56D6.6040808@cyberone.com.au> <20040106064607.GB18208@waste.org> <3FFA5ED3.6040000@cyberone.com.au> <20040110004625.GB25089@fs.tum.de> <20040110005232.GD25089@fs.tum.de> <20040116111501.70200cf3.cliffw@osdl.org> <20040117021532.GH12027@fs.tum.de> Mime-Version: 1.0 Content-Type: text/plain; charset=iso-8859-15 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: <20040117021532.GH12027@fs.tum.de> User-Agent: Mutt/1.5.4i X-Spam-Score: 0.0 (/) Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1687 Lines: 42 Hi, On Sat, Jan 17, 2004 at 03:15:32AM +0100, Adrian Bunk wrote: > Besides the AMD Elan cpufreq driver I see nothing where CONFIG_MELAN > gave you any real difference (except your highest goal is to avoid a > recompilation when switching from the Pentium 4 to the AMD Elan - but I > doubt the really "prevents development"). > > But I'm not religious about this issue. Let Robert decide, the Elan > support is his child. > > > > > - added optimizing CFLAGS for the AMD Elan > > > > There are no such different "optimizations" for ELAN. > > What's wrong wih the -march=i486 Robert suggested? I've not followed the 2.6 development regarding the arch selection that closely; let's collect arguments: - Is it still possible to run a -march=i486 built kernel on a pentium? IMHO It would be good to optimize the code for i486, but I'm not that familiar with how good gcc optimizes for 486 that I can comment this. - I personally work with lots of cross architectures like ARM, so cross compiling for an embedded system is no problem for me. But if people want to test stuff on their pentiums I also have no problem with that. Other arguments? Robert -- Dipl.-Ing. Robert Schwebel | http://www.pengutronix.de Pengutronix - Linux Solutions for Science and Industry Handelsregister: Amtsgericht Hildesheim, HRA 2686 Hornemannstra?e 12, 31137 Hildesheim, Germany Phone: +49-5121-28619-0 | Fax: +49-5121-28619-4 - 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/