#if __mips_isa_rev < 6 #define LLSC_M "m" #else #define LLSC_M "ZC" #endif #define a_ll a_ll static inline int a_ll(volatile int *p) { int v; __asm__ __volatile__ ( "ll %0, %1" : "=r"(v) : LLSC_M(*p)); return v; } #define a_sc a_sc static inline int a_sc(volatile int *p, int v) { int r; __asm__ __volatile__ ( "sc %0, %1" : "=r"(r), "="LLSC_M(*p) : "0"(v) : "memory"); return r; } #define a_ll_p a_ll_p static inline void *a_ll_p(volatile void *p) { void *v; __asm__ __volatile__ ( "lld %0, %1" : "=r"(v) : LLSC_M(*(void *volatile *)p)); return v; } #define a_sc_p a_sc_p static inline int a_sc_p(volatile void *p, void *v) { long r; __asm__ __volatile__ ( "scd %0, %1" : "=r"(r), "="LLSC_M(*(void *volatile *)p) : "0"(v) : "memory"); return r; } #define a_barrier a_barrier static inline void a_barrier() { __asm__ __volatile__ ("sync" : : : "memory"); } #define a_pre_llsc a_barrier #define a_post_llsc a_barrier #undef LLSC_M