From mboxrd@z Thu Jan  1 00:00:00 1970
From: Julien Grall <julien.grall@linaro.org>
Subject: Re: [PATCH 05/17] xen: arm32: resync atomics with
	(almost) v3.14-rc7
Date: Thu, 20 Mar 2014 17:27:29 +0000
Message-ID: <532B2501.1080503@linaro.org>
References: <1395330336.3104.12.camel@kazak.uk.xensource.com>
	<1395330365-9901-5-git-send-email-ian.campbell@citrix.com>
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To: Ian Campbell <ian.campbell@citrix.com>
Cc: stefano.stabellini@eu.citrix.com, tim@xen.org, xen-devel@lists.xen.org
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Hi Ian,

On 03/20/2014 03:45 PM, Ian Campbell wrote:
> diff --git a/xen/include/asm-arm/arm32/atomic.h b/xen/include/asm-arm/arm32/atomic.h
> index 3f024d4..d309f66 100644
> --- a/xen/include/asm-arm/arm32/atomic.h
> +++ b/xen/include/asm-arm/arm32/atomic.h
> @@ -21,6 +21,7 @@ static inline void atomic_add(int i, atomic_t *v)
>  	unsigned long tmp;
>  	int result;
>  
> +	prefetchw(&v->counter);

Xen on ARM doesn't provide prefetch* helper. Shall we implement it?

Regards,

-- 
Julien Grall