linux-kernel - Re: [PATCH 0/3] Add OMAP hardware spinlock misc driver

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Message-ID: <1287416880.1998.1927.camel@laptop>
Date:	Mon, 18 Oct 2010 17:48:00 +0200
From:	Peter Zijlstra <peterz@...radead.org>
To:	Ohad Ben-Cohen <ohad@...ery.com>
Cc:	Catalin Marinas <catalin.marinas@....com>,
	Russell King - ARM Linux <linux@....linux.org.uk>,
	Hari Kanigeri <h-kanigeri2@...com>, Suman Anna <s-anna@...com>,
	Benoit Cousson <b-cousson@...com>,
	Tony Lindgren <tony@...mide.com>, Greg KH <greg@...ah.com>,
	linux-kernel@...r.kernel.org,
	Grant Likely <grant.likely@...retlab.ca>,
	akpm@...ux-foundation.org, linux-omap@...r.kernel.org,
	linux-arm-kernel@...ts.infradead.org
Subject: Re: [PATCH 0/3] Add OMAP hardware spinlock misc driver

On Mon, 2010-10-18 at 17:35 +0200, Ohad Ben-Cohen wrote:
> On Mon, Oct 18, 2010 at 5:32 PM, Peter Zijlstra <peterz@...radead.org> wrote:
> > Sure, but you can 'easily' extend your coherency protocols with support
> 
> In our case, there are no coherency protocols supported between the
> A9, M3 and the DSP.

Sure, I got that, I was simply commenting on Catalin's statement that
cache coherency doesn't (need to) bring atomic modifications.


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