From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754947Ab2LFKrg (ORCPT ); Thu, 6 Dec 2012 05:47:36 -0500 Received: from cam-admin0.cambridge.arm.com ([217.140.96.50]:58313 "EHLO cam-admin0.cambridge.arm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754926Ab2LFKrf (ORCPT ); Thu, 6 Dec 2012 05:47:35 -0500 Date: Thu, 6 Dec 2012 10:47:10 +0000 From: Will Deacon To: Uwe =?iso-8859-1?Q?Kleine-K=F6nig?= Cc: "kgene.kim@samsung.com" , "swarren@nvidia.com" , "nico@linaro.org" , Armando Visconti , spear-devel , "linux-kernel@vger.kernel.org" , "hsweeten@visionengravers.com" , Russell King - ARM Linux , "linux-arm-kernel@lists.infradead.org" Subject: Re: [PATCH] nommu: Enable the strict alignment (CR_A) bit only if ARCH < v6 Message-ID: <20121206104710.GB749@mudshark.cambridge.arm.com> References: <1354187042-28568-1-git-send-email-armando.visconti@st.com> <50BCD6DB.2030200@st.com> <20121203172553.GC14363@n2100.arm.linux.org.uk> <20121203174617.GL20074@mudshark.cambridge.arm.com> <20121205195134.GD3384@pengutronix.de> MIME-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: <20121205195134.GD3384@pengutronix.de> User-Agent: Mutt/1.5.21 (2010-09-15) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Wed, Dec 05, 2012 at 07:51:34PM +0000, Uwe Kleine-König wrote: > Hello, Hi Uwe, > On Mon, Dec 03, 2012 at 05:46:17PM +0000, Will Deacon wrote: > > I think Uwe also requires some of the stuff there for his M3 port. > I didn't check more context than available in the patch and I also > didn't double-check the M3-docs, but AFAIK the M3 doesn't have a cp15 > and I noopt this code out. I was thinking more about the word-at-a-time stuff, which relies on efficient unaligned access for the dcache accesses. Will