2 * This program is free software; you can redistribute it and/or
3 * modify it under the terms of the GNU General Public License
4 * as published by the Free Software Foundation; either version
5 * 2 of the License, or (at your option) any later version.
7 #ifndef _ASM_POWERPC_SWAB_H
8 #define _ASM_POWERPC_SWAB_H
10 #include <uapi/asm/swab.h>
14 #endif /* __powerpc64__ */
16 static __inline__ __u16 ld_le16(const volatile __u16 *addr)
20 __asm__ __volatile__ ("lhbrx %0,0,%1" : "=r" (val) : "r" (addr), "m" (*addr));
23 #define __arch_swab16p ld_le16
25 static __inline__ void st_le16(volatile __u16 *addr, const __u16 val)
27 __asm__ __volatile__ ("sthbrx %1,0,%2" : "=m" (*addr) : "r" (val), "r" (addr));
30 static inline void __arch_swab16s(__u16 *addr)
34 #define __arch_swab16s __arch_swab16s
36 static __inline__ __u32 ld_le32(const volatile __u32 *addr)
40 __asm__ __volatile__ ("lwbrx %0,0,%1" : "=r" (val) : "r" (addr), "m" (*addr));
43 #define __arch_swab32p ld_le32
45 static __inline__ void st_le32(volatile __u32 *addr, const __u32 val)
47 __asm__ __volatile__ ("stwbrx %1,0,%2" : "=m" (*addr) : "r" (val), "r" (addr));
50 static inline void __arch_swab32s(__u32 *addr)
54 #define __arch_swab32s __arch_swab32s
56 static inline __attribute_const__ __u16 __arch_swab16(__u16 value)
60 __asm__("rlwimi %0,%1,8,16,23"
62 : "r" (value), "0" (value >> 8));
65 #define __arch_swab16 __arch_swab16
67 static inline __attribute_const__ __u32 __arch_swab32(__u32 value)
71 __asm__("rlwimi %0,%1,24,16,23\n\t"
72 "rlwimi %0,%1,8,8,15\n\t"
75 : "r" (value), "0" (value >> 24));
78 #define __arch_swab32 __arch_swab32
81 #endif /* _ASM_POWERPC_SWAB_H */