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Message-ID: <20121206104710.GB749@mudshark.cambridge.arm.com>
Date: Thu, 6 Dec 2012 10:47:10 +0000
From: Will Deacon <will.deacon@....com>
To: Uwe Kleine-König
<u.kleine-koenig@...gutronix.de>
Cc: "kgene.kim@...sung.com" <kgene.kim@...sung.com>,
"swarren@...dia.com" <swarren@...dia.com>,
"nico@...aro.org" <nico@...aro.org>,
Armando Visconti <armando.visconti@...com>,
spear-devel <spear-devel@...t.st.com>,
"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
"hsweeten@...ionengravers.com" <hsweeten@...ionengravers.com>,
Russell King - ARM Linux <linux@....linux.org.uk>,
"linux-arm-kernel@...ts.infradead.org"
<linux-arm-kernel@...ts.infradead.org>
Subject: Re: [PATCH] nommu: Enable the strict alignment (CR_A) bit only if
ARCH < v6
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
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