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[POWERPC] Merge iSeries i/o operations with the rest

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This patch changes the io operations so that they are out of line if
CONFIG_PPC_ISERIES is set and includes a firmware feature check in
that case.

Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Paul Mackerras <paulus@samba.org>
This commit is contained in:
Stephen Rothwell
2006-09-21 18:00:00 +10:00
committed by Paul Mackerras
parent 7da8a2e5c1
commit caf81329c3
4 changed files with 318 additions and 182 deletions
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14
arch/powerpc/kernel/io.c
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@@ -22,12 +22,16 @@
#include <linux/module.h>
#include <asm/io.h>
#include <asm/firmware.h>
#include <asm/bug.h>
void _insb(volatile u8 __iomem *port, void *buf, long count)
{
u8 *tbuf = buf;
u8 tmp;
BUG_ON(firmware_has_feature(FW_FEATURE_ISERIES));
if (unlikely(count <= 0))
return;
asm volatile("sync");
@@ -44,6 +48,8 @@ void _outsb(volatile u8 __iomem *port, const void *buf, long count)
{
const u8 *tbuf = buf;
BUG_ON(firmware_has_feature(FW_FEATURE_ISERIES));
if (unlikely(count <= 0))
return;
asm volatile("sync");
@@ -59,6 +65,8 @@ void _insw_ns(volatile u16 __iomem *port, void *buf, long count)
u16 *tbuf = buf;
u16 tmp;
BUG_ON(firmware_has_feature(FW_FEATURE_ISERIES));
if (unlikely(count <= 0))
return;
asm volatile("sync");
@@ -75,6 +83,8 @@ void _outsw_ns(volatile u16 __iomem *port, const void *buf, long count)
{
const u16 *tbuf = buf;
BUG_ON(firmware_has_feature(FW_FEATURE_ISERIES));
if (unlikely(count <= 0))
return;
asm volatile("sync");
@@ -90,6 +100,8 @@ void _insl_ns(volatile u32 __iomem *port, void *buf, long count)
u32 *tbuf = buf;
u32 tmp;
BUG_ON(firmware_has_feature(FW_FEATURE_ISERIES));
if (unlikely(count <= 0))
return;
asm volatile("sync");
@@ -106,6 +118,8 @@ void _outsl_ns(volatile u32 __iomem *port, const void *buf, long count)
{
const u32 *tbuf = buf;
BUG_ON(firmware_has_feature(FW_FEATURE_ISERIES));
if (unlikely(count <= 0))
return;
asm volatile("sync");