1#ifndef _PPC64_BYTEORDER_H 2#define _PPC64_BYTEORDER_H 3 4/* 5 * This program is free software; you can redistribute it and/or 6 * modify it under the terms of the GNU General Public License 7 * as published by the Free Software Foundation; either version 8 * 2 of the License, or (at your option) any later version. 9 */ 10 11#include <asm/types.h> 12 13#ifdef __GNUC__ 14 15static __inline__ __u16 ld_le16(const volatile __u16 *addr) 16{ 17 __u16 val; 18 19 __asm__ __volatile__ ("lhbrx %0,0,%1" : "=r" (val) : "r" (addr), "m" (*addr)); 20 return val; 21} 22 23static __inline__ void st_le16(volatile __u16 *addr, const __u16 val) 24{ 25 __asm__ __volatile__ ("sthbrx %1,0,%2" : "=m" (*addr) : "r" (val), "r" (addr)); 26} 27 28static __inline__ __u32 ld_le32(const volatile __u32 *addr) 29{ 30 __u32 val; 31 32 __asm__ __volatile__ ("lwbrx %0,0,%1" : "=r" (val) : "r" (addr), "m" (*addr)); 33 return val; 34} 35 36static __inline__ void st_le32(volatile __u32 *addr, const __u32 val) 37{ 38 __asm__ __volatile__ ("stwbrx %1,0,%2" : "=m" (*addr) : "r" (val), "r" (addr)); 39} 40 41 42/* The same, but returns converted value from the location pointer by addr. */ 43#define __arch__swab16p(addr) ld_le16(addr) 44#define __arch__swab32p(addr) ld_le32(addr) 45 46/* The same, but do the conversion in situ, ie. put the value back to addr. */ 47#define __arch__swab16s(addr) st_le16(addr,*addr) 48#define __arch__swab32s(addr) st_le32(addr,*addr) 49 50#endif /* __GNUC__ */ 51 52/* MIKEC: What does __BYTEORDER_HAS_U64__ mean? */ 53#ifndef __STRICT_ANSI__ 54#define __BYTEORDER_HAS_U64__ 55#endif 56 57#include <linux/byteorder/big_endian.h> 58 59#endif /* _PPC64_BYTEORDER_H */ 60