linux-kernel - Re: [PATCH v2 05/18] alpha: io: implement relaxed accessor macros for writes

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Message-ID: <537E3EC7.1030904@twiddle.net>
Date:	Thu, 22 May 2014 11:15:35 -0700
From:	Richard Henderson <rth@...ddle.net>
To:	Will Deacon <will.deacon@....com>, linux-arch@...r.kernel.org,
	linux-kernel@...r.kernel.org
CC:	arnd@...db.de, monstr@...str.eu, dhowells@...hat.com,
	broonie@...aro.org, benh@...nel.crashing.org, peterz@...radead.org,
	paulmck@...ux.vnet.ibm.com,
	Ivan Kokshaysky <ink@...assic.park.msu.ru>,
	Matt Turner <mattst88@...il.com>
Subject: Re: [PATCH v2 05/18] alpha: io: implement relaxed accessor macros
 for writes

On 05/22/2014 09:47 AM, Will Deacon wrote:
> write{b,w,l,q}_relaxed are implemented by some architectures in order to
> permit memory-mapped I/O writes with weaker barrier semantics than the
> non-relaxed variants.
> 
> This patch implements these write macros for Alpha, in the same vein as
> the relaxed read macros, which are already implemented.
> 
> Cc: Richard Henderson <rth@...ddle.net>
> Cc: Ivan Kokshaysky <ink@...assic.park.msu.ru>
> Cc: Matt Turner <mattst88@...il.com>
> Signed-off-by: Will Deacon <will.deacon@....com>
> ---
>  arch/alpha/include/asm/io.h | 12 ++++++++----
>  1 file changed, 8 insertions(+), 4 deletions(-)

Acked-by: Richard Henderson <rth@...ddle.net>


r~
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