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From: Ohad Ben-Cohen <ohad@wizery.com>
Date: Tue, 14 Dec 2010 16:31:36 +0200
Message-ID: <AANLkTin1fd=Kei7Fo6G+uR+270HdTkc71fvsA6qjBjcA@mail.gmail.com>
Subject: Re: [PATCH v3 0/4] Introduce hardware spinlock framework
To: linux-omap@vger.kernel.org, linux-kernel@vger.kernel.org,
        linux-arm-kernel@lists.infradead.org
Cc: akpm@linux-foundation.org, Greg KH <greg@kroah.com>,
        Tony Lindgren <tony@atomide.com>, Benoit Cousson <b-cousson@ti.com>,
        Grant Likely <grant.likely@secretlab.ca>,
        Hari Kanigeri <h-kanigeri2@ti.com>, Suman Anna <s-anna@ti.com>,
        Kevin Hilman <khilman@deeprootsystems.com>,
        Arnd Bergmann <arnd@arndb.de>
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Hi Greg, Tony,

On Sat, Dec 4, 2010 at 1:50 AM, Ohad Ben-Cohen <ohad@wizery.com> wrote:
> OMAP4 introduces a Hardware Spinlock device, 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).
>
> The intention of this hardware device is to allow remote processors,
> that have no alternative mechanism to accomplish synchronization and mutual
> exclusion operations, to share resources (such as memory and/or any other
> hardware resource).
>
> This patchset adds hwspinlock framework that makes it possible
> for drivers to use those hwspinlock devices and stay platform-independent.

...

> ?Documentation/hwspinlock.txt ? ? ? ? ? ? ? | ?299 +++++++++++++++
> ?arch/arm/mach-omap2/Makefile ? ? ? ? ? ? ? | ? ?1 +
> ?arch/arm/mach-omap2/hwspinlock.c ? ? ? ? ? | ? 63 ++++
> ?arch/arm/mach-omap2/omap_hwmod_44xx_data.c | ? 64 ++++
> ?drivers/Kconfig ? ? ? ? ? ? ? ? ? ? ? ? ? ?| ? ?2 +
> ?drivers/Makefile ? ? ? ? ? ? ? ? ? ? ? ? ? | ? ?1 +
> ?drivers/hwspinlock/Kconfig ? ? ? ? ? ? ? ? | ? 22 ++
> ?drivers/hwspinlock/Makefile ? ? ? ? ? ? ? ?| ? ?6 +
> ?drivers/hwspinlock/hwspinlock.h ? ? ? ? ? ?| ? 61 +++
> ?drivers/hwspinlock/hwspinlock_core.c ? ? ? | ?557 ++++++++++++++++++++++++++++
> ?drivers/hwspinlock/omap_hwspinlock.c ? ? ? | ?231 ++++++++++++
> ?include/linux/hwspinlock.h ? ? ? ? ? ? ? ? | ?298 +++++++++++++++
> ?12 files changed, 1605 insertions(+), 0 deletions(-)

Can you please have a look and say if this looks OK ?

If it does, where would you prefer this to go through ?

Thanks,
Ohad.
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