linux-kernel - Re: [PATCH 15/18] tile: io: implement dummy relaxed accessor macros for writes

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Message-ID: <534FEAC5.10808@tilera.com>
Date:	Thu, 17 Apr 2014 10:52:53 -0400
From:	Chris Metcalf <cmetcalf@...era.com>
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>
Subject: Re: [PATCH 15/18] tile: io: implement dummy relaxed accessor macros
 for writes

On 4/17/2014 9:44 AM, Will Deacon wrote:
> write{b,w,l,q}_relaxed are implemented by some architectures in order to
> permit memory-mapped I/O accesses with weaker barrier semantics than the
> non-relaxed variants.
>
> This patch adds dummy macros for the write accessors to tile, in the
> same vein as the dummy definitions for the relaxed read accessors.
>
> Cc: Chris Metcalf <cmetcalf@...era.com>
> Signed-off-by: Will Deacon <will.deacon@....com>
> ---
>  arch/tile/include/asm/io.h | 4 ++++
>  1 file changed, 4 insertions(+)

Acked-by: Chris Metcalf <cmetcalf@...era.com>

-- 
Chris Metcalf, Tilera Corp.
http://www.tilera.com

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