1 #define a_barrier a_barrier
2 static inline void a_barrier()
4 __asm__ __volatile__ ("fence rw,rw" : : : "memory");
8 static inline int a_cas(volatile int *p, int t, int s)
11 __asm__ __volatile__ (
12 "\n1: lr.w.aqrl %0, %2\n"
14 " sc.w.aqrl %1, %4, %2\n"
17 : "=&r"(old), "=r"(tmp), "+A"(*p)
23 #define a_cas_p a_cas_p
24 static inline void *a_cas_p(volatile void *p, void *t, void *s)
28 __asm__ __volatile__ (
29 "\n1: lr.d.aqrl %0, %2\n"
31 " sc.d.aqrl %1, %4, %2\n"
34 : "=&r"(old), "=r"(tmp), "+A"(*(long *)p)