linux-kernel - Re: Do cpu-endian MMIO accessors exist?

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Message-ID: <4A663987.4040500@gmail.com>
Date:	Tue, 21 Jul 2009 23:56:23 +0200
From:	Jiri Slaby <jirislaby@...il.com>
To:	Arnd Bergmann <arnd@...db.de>
CC:	Pekka Paalanen <pq@....fi>, linux-kernel@...r.kernel.org,
	Christoph Hellwig <hch@...radead.org>
Subject: Re: Do cpu-endian MMIO accessors exist?

On 07/21/2009 11:15 PM, Arnd Bergmann wrote:
> __raw_readl is not a replacement for real accessors like
> ioread32 or in_be32, because it does not synchronize with the
> instruction stream.

Aha, I see now. I guess it's a bug that ioread/write* on sh are not with
barriers?
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