xref: /linux/tools/arch/mips/include/asm/barrier.h (revision ca55b2fef3a9373fcfc30f82fd26bc7fccbda732)
1 #ifndef _TOOLS_LINUX_ASM_MIPS_BARRIER_H
2 #define _TOOLS_LINUX_ASM_MIPS_BARRIER_H
3 /*
4  * FIXME: This came from tools/perf/perf-sys.h, where it was first introduced
5  * in c1e028ef40b8d6943b767028ba17d4f2ba020edb, more work needed to make it
6  * more closely follow the Linux kernel arch/mips/include/asm/barrier.h file.
7  * Probably when we continue work on tools/ Kconfig support to have all the
8  * CONFIG_ needed for properly doing that.
9  */
10 #define mb()		asm volatile(					\
11 				".set	mips2\n\t"			\
12 				"sync\n\t"				\
13 				".set	mips0"				\
14 				: /* no output */			\
15 				: /* no input */			\
16 				: "memory")
17 #define wmb()	mb()
18 #define rmb()	mb()
19 
20 #endif /* _TOOLS_LINUX_ASM_MIPS_BARRIER_H */
21