Commit f4d2b145 authored by Harvey Harrison's avatar Harvey Harrison Committed by Linus Torvalds
Browse files

sparc: introduce asm/swab.h


Signed-off-by: default avatarHarvey Harrison <harvey.harrison@gmail.com>
Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
parent 1af84a62
......@@ -17,3 +17,4 @@ header-y += traps.h
header-y += uctx.h
header-y += utrap.h
header-y += watchdog.h
header-y += swab.h
#ifndef _SPARC_BYTEORDER_H
#define _SPARC_BYTEORDER_H
#include <linux/types.h>
#include <asm/asi.h>
#define __BIG_ENDIAN
#if defined(__sparc__) && defined(__arch64__)
static inline __u16 __arch_swab16p(const __u16 *addr)
{
__u16 ret;
__asm__ __volatile__ ("lduha [%1] %2, %0"
: "=r" (ret)
: "r" (addr), "i" (ASI_PL));
return ret;
}
#define __arch_swab16p __arch_swab16p
static inline __u32 __arch_swab32p(const __u32 *addr)
{
__u32 ret;
__asm__ __volatile__ ("lduwa [%1] %2, %0"
: "=r" (ret)
: "r" (addr), "i" (ASI_PL));
return ret;
}
#define __arch_swab32p __arch_swab32p
static inline __u64 __arch_swab64p(const __u64 *addr)
{
__u64 ret;
__asm__ __volatile__ ("ldxa [%1] %2, %0"
: "=r" (ret)
: "r" (addr), "i" (ASI_PL));
return ret;
}
#define __arch_swab64p __arch_swab64p
#else
#define __SWAB_64_THRU_32__
#endif /* defined(__sparc__) && defined(__arch64__) */
#include <linux/byteorder.h>
#include <asm/swab.h>
#include <linux/byteorder/big_endian.h>
#endif /* _SPARC_BYTEORDER_H */
#ifndef _SPARC_SWAB_H
#define _SPARC_SWAB_H
#include <linux/types.h>
#include <asm/asi.h>
#if defined(__sparc__) && defined(__arch64__)
static inline __u16 __arch_swab16p(const __u16 *addr)
{
__u16 ret;
__asm__ __volatile__ ("lduha [%1] %2, %0"
: "=r" (ret)
: "r" (addr), "i" (ASI_PL));
return ret;
}
#define __arch_swab16p __arch_swab16p
static inline __u32 __arch_swab32p(const __u32 *addr)
{
__u32 ret;
__asm__ __volatile__ ("lduwa [%1] %2, %0"
: "=r" (ret)
: "r" (addr), "i" (ASI_PL));
return ret;
}
#define __arch_swab32p __arch_swab32p
static inline __u64 __arch_swab64p(const __u64 *addr)
{
__u64 ret;
__asm__ __volatile__ ("ldxa [%1] %2, %0"
: "=r" (ret)
: "r" (addr), "i" (ASI_PL));
return ret;
}
#define __arch_swab64p __arch_swab64p
#else
#define __SWAB_64_THRU_32__
#endif /* defined(__sparc__) && defined(__arch64__) */
#endif /* _SPARC_SWAB_H */
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