1 #ifndef __SPARC_BARRIER_H
2 #define __SPARC_BARRIER_H
3 
4 /* XXX Change this if we ever use a PSO mode kernel. */
5 #define mb()	__asm__ __volatile__ ("" : : : "memory")
6 #define rmb()	mb()
7 #define wmb()	mb()
8 #define read_barrier_depends()	do { } while(0)
9 #define set_mb(__var, __value)  do { __var = __value; mb(); } while(0)
10 #define smp_mb()	__asm__ __volatile__("":::"memory")
11 #define smp_rmb()	__asm__ __volatile__("":::"memory")
12 #define smp_wmb()	__asm__ __volatile__("":::"memory")
13 #define smp_read_barrier_depends()	do { } while(0)
14 
15 #endif /* !(__SPARC_BARRIER_H) */
16