diff options
Diffstat (limited to 'sys/arch/sparc64/include/endian.h')
| -rw-r--r-- | sys/arch/sparc64/include/endian.h | 73 |
1 files changed, 72 insertions, 1 deletions
diff --git a/sys/arch/sparc64/include/endian.h b/sys/arch/sparc64/include/endian.h index fbe3710afe3..21a57bac38c 100644 --- a/sys/arch/sparc64/include/endian.h +++ b/sys/arch/sparc64/include/endian.h @@ -1,9 +1,80 @@ -/* $OpenBSD: endian.h,v 1.3 2011/03/11 15:17:08 pirofti Exp $ */ +/* $OpenBSD: endian.h,v 1.4 2014/03/14 10:47:21 dlg Exp $ */ #ifndef _MACHINE_ENDIAN_H_ #define _MACHINE_ENDIAN_H_ #define _BYTE_ORDER _BIG_ENDIAN + +#ifdef _KERNEL + +#define ASI_P_L 0x88 + +static inline __uint16_t +__mswap16(volatile __uint16_t *m) +{ + __uint16_t v; + + __asm __volatile("lduha [%1] %2, %0 ! %3" + : "=r" (v) + : "r" (m), "n" (ASI_P_L), "m" (*m)); + + return (v); +} + +static inline __uint32_t +__mswap32(volatile __uint32_t *m) +{ + __uint32_t v; + + __asm __volatile("lduwa [%1] %2, %0 ! %3" + : "=r" (v) + : "r" (m), "n" (ASI_P_L), "m" (*m)); + + return (v); +} + +static inline __uint64_t +__mswap64(volatile __uint64_t *m) +{ + __uint64_t v; + + __asm __volatile("ldxa [%1] %2, %0 ! %3" + : "=r" (v) + : "r" (m), "n" (ASI_P_L), "m" (*m)); + + return (v); +} + +static inline void +__swapm16(volatile __uint16_t *m, __uint16_t v) +{ + __asm __volatile("stha %1, [%2] %3 ! %0" + : "=m" (*m) + : "r" (v), "r" (m), "n" (ASI_P_L)); +} + +static inline void +__swapm32(volatile __uint32_t *m, __uint32_t v) +{ + __asm __volatile("stwa %1, [%2] %3 ! %0" + : "=m" (*m) + : "r" (v), "r" (m), "n" (ASI_P_L)); +} + +static inline void +__swapm64(volatile __uint64_t *m, __uint64_t v) +{ + __asm __volatile("stxa %1, [%2] %3 ! %0" + : "=m" (*m) + : "r" (v), "r" (m), "n" (ASI_P_L)); +} + +#undef ASI_P_L + +#define MD_SWAPIO + +#endif /* _KERNEL */ + #include <sys/endian.h> #define __STRICT_ALIGNMENT |