linux-kernel - [PATCH] alpha: add io{read,write}{16,32}be functions

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Message-Id: <1322640100-14534-1-git-send-email-mcree@orcon.net.nz>
Date:	Wed, 30 Nov 2011 21:01:40 +1300
From:	Michael Cree <mcree@...on.net.nz>
To:	linux-alpha@...r.kernel.org
Cc:	Michael Cree <mcree@...on.net.nz>, linux-kernel@...r.kernel.org,
	Matt Turner <mattst88@...il.com>,
	Richard Henderson <rth@...ddle.net>,
	Ivan Kokshaysky <ink@...assic.park.msu.ru>,
	649468@...s.debian.org, Ben Hutchings <ben@...adent.org.uk>
Subject: [PATCH] alpha: add io{read,write}{16,32}be functions

These functions are used in some PCI drivers with big-endian
MMIO space.

Admittedly it is almost certain that no one this side of the
Moon would use such a card in an Alpha but it does get us
closer to being able to build allyesconfig or allmodconfig,
and it enables the Debian default generic config to build.

Signed-off-by: Michael Cree <mcree@...on.net.nz>
---
 arch/alpha/include/asm/io.h |    5 +++++
 1 files changed, 5 insertions(+), 0 deletions(-)

diff --git a/arch/alpha/include/asm/io.h b/arch/alpha/include/asm/io.h
index 56ff965..6365ef2 100644
--- a/arch/alpha/include/asm/io.h
+++ b/arch/alpha/include/asm/io.h
@@ -490,6 +490,11 @@ extern inline void writeq(u64 b, volatile void __iomem *addr)
 }
 #endif
 
+#define ioread16be(p) be16_to_cpu(ioread16(p))
+#define ioread32be(p) be32_to_cpu(ioread32(p))
+#define iowrite16be(v,p) iowrite16(cpu_to_be16(v), (p))
+#define iowrite32be(v,p) iowrite32(cpu_to_be32(v), (p))
+
 #define inb_p		inb
 #define inw_p		inw
 #define inl_p		inl
-- 
1.7.4.3

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