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Diffstat (limited to 'arch/arm/include/asm/io.h')
-rw-r--r--arch/arm/include/asm/io.h52
1 files changed, 37 insertions, 15 deletions
diff --git a/arch/arm/include/asm/io.h b/arch/arm/include/asm/io.h
index db58deb00aa7..addfb3dd095f 100644
--- a/arch/arm/include/asm/io.h
+++ b/arch/arm/include/asm/io.h
@@ -23,6 +23,7 @@
#ifdef __KERNEL__
+#include <linux/string.h>
#include <linux/types.h>
#include <linux/blk_types.h>
#include <asm/byteorder.h>
@@ -73,17 +74,16 @@ void __raw_readsl(const volatile void __iomem *addr, void *data, int longlen);
static inline void __raw_writew(u16 val, volatile void __iomem *addr)
{
asm volatile("strh %1, %0"
- : "+Q" (*(volatile u16 __force *)addr)
- : "r" (val));
+ : : "Q" (*(volatile u16 __force *)addr), "r" (val));
}
#define __raw_readw __raw_readw
static inline u16 __raw_readw(const volatile void __iomem *addr)
{
u16 val;
- asm volatile("ldrh %1, %0"
- : "+Q" (*(volatile u16 __force *)addr),
- "=r" (val));
+ asm volatile("ldrh %0, %1"
+ : "=r" (val)
+ : "Q" (*(volatile u16 __force *)addr));
return val;
}
#endif
@@ -92,25 +92,23 @@ static inline u16 __raw_readw(const volatile void __iomem *addr)
static inline void __raw_writeb(u8 val, volatile void __iomem *addr)
{
asm volatile("strb %1, %0"
- : "+Qo" (*(volatile u8 __force *)addr)
- : "r" (val));
+ : : "Qo" (*(volatile u8 __force *)addr), "r" (val));
}
#define __raw_writel __raw_writel
static inline void __raw_writel(u32 val, volatile void __iomem *addr)
{
asm volatile("str %1, %0"
- : "+Qo" (*(volatile u32 __force *)addr)
- : "r" (val));
+ : : "Qo" (*(volatile u32 __force *)addr), "r" (val));
}
#define __raw_readb __raw_readb
static inline u8 __raw_readb(const volatile void __iomem *addr)
{
u8 val;
- asm volatile("ldrb %1, %0"
- : "+Qo" (*(volatile u8 __force *)addr),
- "=r" (val));
+ asm volatile("ldrb %0, %1"
+ : "=r" (val)
+ : "Qo" (*(volatile u8 __force *)addr));
return val;
}
@@ -118,9 +116,9 @@ static inline u8 __raw_readb(const volatile void __iomem *addr)
static inline u32 __raw_readl(const volatile void __iomem *addr)
{
u32 val;
- asm volatile("ldr %1, %0"
- : "+Qo" (*(volatile u32 __force *)addr),
- "=r" (val));
+ asm volatile("ldr %0, %1"
+ : "=r" (val)
+ : "Qo" (*(volatile u32 __force *)addr));
return val;
}
@@ -319,9 +317,33 @@ extern void _memset_io(volatile void __iomem *, int, size_t);
#define writesw(p,d,l) __raw_writesw(p,d,l)
#define writesl(p,d,l) __raw_writesl(p,d,l)
+#ifndef __ARMBE__
+static inline void memset_io(volatile void __iomem *dst, unsigned c,
+ size_t count)
+{
+ memset((void __force *)dst, c, count);
+}
+#define memset_io(dst,c,count) memset_io(dst,c,count)
+
+static inline void memcpy_fromio(void *to, const volatile void __iomem *from,
+ size_t count)
+{
+ memcpy(to, (const void __force *)from, count);
+}
+#define memcpy_fromio(to,from,count) memcpy_fromio(to,from,count)
+
+static inline void memcpy_toio(volatile void __iomem *to, const void *from,
+ size_t count)
+{
+ memcpy((void __force *)to, from, count);
+}
+#define memcpy_toio(to,from,count) memcpy_toio(to,from,count)
+
+#else
#define memset_io(c,v,l) _memset_io(c,(v),(l))
#define memcpy_fromio(a,c,l) _memcpy_fromio((a),c,(l))
#define memcpy_toio(c,a,l) _memcpy_toio(c,(a),(l))
+#endif
#endif /* readl */