mirror of https://gitee.com/openkylin/linux.git
21 lines
516 B
C
21 lines
516 B
C
#ifndef _M68K_BARRIER_H
|
|
#define _M68K_BARRIER_H
|
|
|
|
/*
|
|
* Force strict CPU ordering.
|
|
* Not really required on m68k...
|
|
*/
|
|
#define nop() do { asm volatile ("nop"); barrier(); } while (0)
|
|
#define mb() barrier()
|
|
#define rmb() barrier()
|
|
#define wmb() barrier()
|
|
#define read_barrier_depends() ((void)0)
|
|
#define set_mb(var, value) ({ (var) = (value); wmb(); })
|
|
|
|
#define smp_mb() barrier()
|
|
#define smp_rmb() barrier()
|
|
#define smp_wmb() barrier()
|
|
#define smp_read_barrier_depends() ((void)0)
|
|
|
|
#endif /* _M68K_BARRIER_H */
|