From: Russell King <rmk+kernel@arm.linux.org.uk>
Date: Thu, 29 Jul 2010 10:38:05 +0000 (+0100)
Subject: ARM: Add barriers to io{read,write}{8,16,32} accessors as well
X-Git-Tag: v2.6.35~2^2~5
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=b92b3612134faff171981fad4f0adb33f485e02e;p=pandora-kernel.git

ARM: Add barriers to io{read,write}{8,16,32} accessors as well

The ioread/iowrite accessors also need barriers as they're used in
place of readl/writel et.al. in portable drivers.  Create __iormb()
and __iowmb() which are conditionally defined to be barriers dependent
on ARM_DMA_MEM_BUFFERABLE, and always use these macros in the accessors.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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