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

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Date:	Mon, 18 Oct 2010 14:46:55 +0200
From:	Peter Zijlstra <peterz@...radead.org>
To:	Ohad Ben-Cohen <ohad@...ery.com>
Cc:	linux-omap@...r.kernel.org, linux-kernel@...r.kernel.org,
	linux-arm-kernel@...ts.infradead.org, akpm@...ux-foundation.org,
	Greg KH <greg@...ah.com>, Tony Lindgren <tony@...mide.com>,
	Benoit Cousson <b-cousson@...com>,
	Grant Likely <grant.likely@...retlab.ca>,
	Hari Kanigeri <h-kanigeri2@...com>, Suman Anna <s-anna@...com>
Subject: Re: [PATCH 0/3] Add OMAP hardware spinlock misc driver

On Mon, 2010-10-18 at 09:44 +0200, Ohad Ben-Cohen wrote:
> OMAP4 introduces a Spinlock hardware module, which provides hardware
> assistance for synchronization and mutual exclusion between heterogeneous
> processors and those not operating under a single, shared operating system
> (e.g. OMAP4 has dual Cortex-A9, dual Cortex-M3 and a C64x+ DSP). 

I just have to ask... was it really easier to build silicon than to
agree on a spinlock ABI?
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