tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
1#ifndef _H8300_BARRIER_H
2#define _H8300_BARRIER_H
3
4#define nop() asm volatile ("nop"::)
5
6/*
7 * Force strict CPU ordering.
8 * Not really required on H8...
9 */
10#define mb() asm volatile ("" : : :"memory")
11#define rmb() asm volatile ("" : : :"memory")
12#define wmb() asm volatile ("" : : :"memory")
13#define set_mb(var, value) do { xchg(&var, value); } while (0)
14
15#ifdef CONFIG_SMP
16#define smp_mb() mb()
17#define smp_rmb() rmb()
18#define smp_wmb() wmb()
19#define smp_read_barrier_depends() read_barrier_depends()
20#else
21#define smp_mb() barrier()
22#define smp_rmb() barrier()
23#define smp_wmb() barrier()
24#define smp_read_barrier_depends() do { } while(0)
25#endif
26
27#endif /* _H8300_BARRIER_H */