/* $OpenBSD: atomic.h,v 1.3 2007/03/23 21:07:36 miod Exp $ */ /* Public Domain */ #ifndef __MIPS64_ATOMIC_H__ #define __MIPS64_ATOMIC_H__ #if defined(_KERNEL) static __inline void atomic_setbits_int(__volatile unsigned int *uip, unsigned int v) { unsigned int tmp; __asm__ __volatile__ ( "1: ll %0, 0(%1)\n" " or %0, %2, %0\n" " sc %0, 0(%1)\n" " beqz %0, 1b\n" " nop\n" : "+r"(tmp) : "r"(uip), "r"(v) : "memory"); } static __inline void atomic_clearbits_int(__volatile unsigned int *uip, unsigned int v) { unsigned int tmp; __asm__ __volatile__ ( "1: ll %0, 0(%1)\n" " and %0, %2, %0\n" " sc %0, 0(%1)\n" " beqz %0, 1b\n" " nop\n" : "+r"(tmp) : "r"(uip), "r"(~v) : "memory"); } #endif /* defined(_KERNEL) */ #endif /* __MIPS64_ATOMIC_H__ */