From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-wy0-f179.google.com (mail-wy0-f179.google.com [74.125.82.179]) by ozlabs.org (Postfix) with ESMTP id BC3C9B70E7 for ; Fri, 1 Oct 2010 21:30:56 +1000 (EST) Received: by wyb42 with SMTP id 42so2863243wyb.38 for ; Fri, 01 Oct 2010 04:30:54 -0700 (PDT) MIME-Version: 1.0 In-Reply-To: <2C5357FA-F87F-457E-B5C1-0DCC5A842DE7@kernel.crashing.org> References: <1285916771-18033-1-git-send-email-imunsie@au1.ibm.com> <2C5357FA-F87F-457E-B5C1-0DCC5A842DE7@kernel.crashing.org> Date: Fri, 1 Oct 2010 07:30:54 -0400 Message-ID: Subject: Re: Introduce support for little endian PowerPC From: Josh Boyer To: Kumar Gala Content-Type: text/plain; charset=ISO-8859-1 Cc: paulus@samba.org, linuxppc-dev@lists.ozlabs.org, Ian Munsie , linux-kernel@vger.kernel.org List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , On Fri, Oct 1, 2010 at 5:02 AM, Kumar Gala wrot= e: > > On Oct 1, 2010, at 2:05 AM, Ian Munsie wrote: > >> Some PowerPC processors can be run in either big or little endian modes,= some >> others can map selected pages of memory as little endian, which allows t= he same >> thing. Until now we have only supported the default big endian mode in L= inux. >> This patch set introduces little endian support for the 44x family of Po= werPC >> processors. > > From a community aspect is anyone actually going to use this? =A0Is this = going to be the equivalent of voyager on x86? =A0I've got nothing against s= ome of the endian clean ups this introduces. =A0However the changes to misc= _32.S are a bit ugly from a readability point of view. =A0Just seems like t= his is likely to bit-rot pretty quickly. I'm with Kumar on this one. Why would we want to support this? I can't say I would be very willing to help anyone run in LE mode, let alone have it randomly selectable. josh