From: Arthur Othieno <a.othieno@bluewin.ch>
Date: Sun, 21 Aug 2005 01:48:47 +0000 (-0400)
Subject: [PATCH] ppc64: Big-endian I/O memory accessors.
X-Git-Tag: v3.12-rc1~42034^2~1
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=766375362a1dcac63dc0c0fb61ce4143c8de63d9;p=kernel%2Fkernel-generic.git

[PATCH] ppc64: Big-endian I/O memory accessors.

I/O memory accessors. Big-endian version. For those busses/devices
that do export big-endian I/O memory.

Of notable relevance/reference:

   http://lwn.net/Articles/132804/
   http://ozlabs.org/pipermail/linuxppc-embedded/2005-August/019798.html
   http://ozlabs.org/pipermail/linuxppc-embedded/2005-August/019752.html

Signed-Off-By: Arthur Othieno <a.othieno@bluewin.ch>
Signed-off-by: Paul Mackerras <paulus@samba.org>
---

diff --git a/arch/ppc64/kernel/iomap.c b/arch/ppc64/kernel/iomap.c
index 153cc8b..95b0baf 100644
--- a/arch/ppc64/kernel/iomap.c
+++ b/arch/ppc64/kernel/iomap.c
@@ -22,13 +22,23 @@ unsigned int fastcall ioread16(void __iomem *addr)
 {
 	return readw(addr);
 }
+unsigned int fastcall ioread16be(void __iomem *addr)
+{
+	return in_be16(addr);
+}
 unsigned int fastcall ioread32(void __iomem *addr)
 {
 	return readl(addr);
 }
+unsigned int fastcall ioread32be(void __iomem *addr)
+{
+	return in_be32(addr);
+}
 EXPORT_SYMBOL(ioread8);
 EXPORT_SYMBOL(ioread16);
+EXPORT_SYMBOL(ioread16be);
 EXPORT_SYMBOL(ioread32);
+EXPORT_SYMBOL(ioread32be);
 
 void fastcall iowrite8(u8 val, void __iomem *addr)
 {
@@ -38,13 +48,23 @@ void fastcall iowrite16(u16 val, void __iomem *addr)
 {
 	writew(val, addr);
 }
+void fastcall iowrite16be(u16 val, void __iomem *addr)
+{
+	out_be16(addr, val);
+}
 void fastcall iowrite32(u32 val, void __iomem *addr)
 {
 	writel(val, addr);
 }
+void fastcall iowrite32be(u32 val, void __iomem *addr)
+{
+	out_be32(addr, val);
+}
 EXPORT_SYMBOL(iowrite8);
 EXPORT_SYMBOL(iowrite16);
+EXPORT_SYMBOL(iowrite16be);
 EXPORT_SYMBOL(iowrite32);
+EXPORT_SYMBOL(iowrite32be);
 
 /*
  * These are the "repeat read/write" functions. Note the