From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S261289AbVAWLSh (ORCPT ); Sun, 23 Jan 2005 06:18:37 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S261296AbVAWLSh (ORCPT ); Sun, 23 Jan 2005 06:18:37 -0500 Received: from smtp3.wanadoo.fr ([193.252.22.28]:20341 "EHLO smtp3.wanadoo.fr") by vger.kernel.org with ESMTP id S261289AbVAWLSf (ORCPT ); Sun, 23 Jan 2005 06:18:35 -0500 X-ME-UUID: 20050123111834164.283271C00351@mwinf0306.wanadoo.fr Date: Sun, 23 Jan 2005 12:17:33 +0100 To: Benjamin Herrenschmidt Cc: David Woodhouse , linuxppc-dev list , Linus Torvalds , "H. Peter Anvin" , Linux Kernel list Subject: Re: [PATCH] raid6: altivec support Message-ID: <20050123111733.GB31635@pegasos> References: <200501082324.j08NOIva030415@hera.kernel.org> <20050109151353.GA9508@suse.de> <1105956993.26551.327.camel@hades.cambridge.redhat.com> <1106107876.4534.163.camel@gaston> <1106120622.10851.42.camel@baythorne.infradead.org> <1106176939.5294.39.camel@gaston> Mime-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Content-Disposition: inline In-Reply-To: <1106176939.5294.39.camel@gaston> User-Agent: Mutt/1.5.6+20040907i From: Sven Luther Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org On Thu, Jan 20, 2005 at 10:22:18AM +1100, Benjamin Herrenschmidt wrote: > On Wed, 2005-01-19 at 07:43 +0000, David Woodhouse wrote: > > On Wed, 2005-01-19 at 15:11 +1100, Benjamin Herrenschmidt wrote: > > > We should probably "backport" that simplification to ppc32... > > > > Yeah.... I'm increasingly tempted to merge ppc32/ppc64 into one arch > > like mips/parisc/s390. Or would that get vetoed on the basis that we > > don't have all that horrid non-OF platform support in ppc64 yet, and > > we're still kidding ourselves that all those embedded vendors will > > either not notice ppc64 or will use OF? > > Oh well... i've though about it too, and decided that I was not ready to > try it. For one, the problem you mention, with the pile of embedded > junk. I made the design decision to define an OF client interface as the > standard & mandatory entry mecanism to the ppc64 kernel (except legacy > iSeries of course, but I don't want that to multiply). That or the > kexec-like entrypoint passing a flattened device-tree in. > > Also, there are other significant differences in other areas. At this > point, I think the differences are bigger than the common code. > > What would be interesting would be to proceed incrementally, having a > directory somewhere to put the "common" ppc/ppc64 code, and slowly > moving things there. It may be too complicated, but what about letting the commong code in ppc, and moving the ppc32 code into ppc32 ? Friendly, Sven Luther