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#ifndef _PPC_BYTEORDER_H
#define _PPC_BYTEORDER_H
#include <asm/types.h>
#ifdef __GNUC__
#ifdef __KERNEL__
extern __inline__ unsigned ld_le16(const volatile unsigned short *addr)
{
unsigned val;
__asm__ __volatile__ ("lhbrx %0,0,%1" : "=r" (val) : "r" (addr), "m" (*addr));
return val;
}
extern __inline__ void st_le16(volatile unsigned short *addr, const unsigned val)
{
__asm__ __volatile__ ("sthbrx %1,0,%2" : "=m" (*addr) : "r" (val), "r" (addr));
}
extern __inline__ unsigned ld_le32(const volatile unsigned *addr)
{
unsigned val;
__asm__ __volatile__ ("lwbrx %0,0,%1" : "=r" (val) : "r" (addr), "m" (*addr));
return val;
}
extern __inline__ void st_le32(volatile unsigned *addr, const unsigned val)
{
__asm__ __volatile__ ("stwbrx %1,0,%2" : "=m" (*addr) : "r" (val), "r" (addr));
}
extern __inline__ unsigned long long ld_le64(const volatile unsigned long long *addr)
{
unsigned char *taddr = (unsigned char *) addr;
unsigned long long val;
__asm__ __volatile__ ("lwbrx %L0,0,%1" : "=r" (val) : "r" (taddr), "m" (*addr));
__asm__ __volatile__ ("lwbrx %0,0,%1" : "=r" (val) : "r" (taddr+4), "m" (*addr), "0" (val));
return val;
}
extern __inline__ void st_le64(volatile unsigned long long *addr, const unsigned long long val)
{
unsigned char *taddr = (unsigned char *) addr;
__asm__ __volatile__ ("stwbrx %L1,0,%2" : "=m" (*addr) : "r" (val), "r" (taddr));
__asm__ __volatile__ ("stwbrx %1,0,%2" : "=m" (*addr) : "r" (val), "r" (taddr+4));
}
static __inline__ __const__ __u16 ___arch__swab16(__u16 value)
{
__u16 result;
__asm__("rlwimi %0,%2,8,16,23" : "=&r" (result) : "0" (value >> 8), "r" (value));
return result;
}
static __inline__ __const__ __u32 ___arch__swab32(__u32 value)
{
__u32 result;
__asm__("rlwimi %0,%2,24,16,23" : "=&r" (result) : "0" (value>>24), "r" (value));
__asm__("rlwimi %0,%2,8,8,15" : "=&r" (result) : "0" (result), "r" (value));
__asm__("rlwimi %0,%2,24,0,7" : "=&r" (result) : "0" (result), "r" (value));
return result;
}
#define __arch__swab32(x) ___arch__swab32(x)
#define __arch__swab16(x) ___arch__swab16(x)
/* The same, but returns converted value from the location pointer by addr. */
#define __arch__swab16p(addr) ld_le16(addr)
#define __arch__swab32p(addr) ld_le32(addr)
#define __arch__swab64p(addr) ld_le64(addr)
/* The same, but do the conversion in situ, ie. put the value back to addr. */
#define __arch__swab16s(addr) st_le16(addr,*addr)
#define __arch__swab32s(addr) st_le32(addr,*addr)
#define __arch__swab64s(addr) st_le64(addr,*addr)
#endif /* __KERNEL__ */
#if !defined(__STRICT_ANSI__) || defined(__KERNEL__)
# define __BYTEORDER_HAS_U64__
# define __SWAB_64_THRU_32__
#endif
#endif /* __GNUC__ */
#include <linux/byteorder/big_endian.h>
#endif /* _PPC_BYTEORDER_H */
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