1 /* SPDX-License-Identifier: GPL-2.0 */
2 #ifndef _TOOLS_LINUX_ASM_MIPS_BARRIER_H
3 #define _TOOLS_LINUX_ASM_MIPS_BARRIER_H
4 /*
5  * FIXME: This came from tools/perf/perf-sys.h, where it was first introduced
6  * in c1e028ef40b8d6943b767028ba17d4f2ba020edb, more work needed to make it
7  * more closely follow the Linux kernel arch/mips/include/asm/barrier.h file.
8  * Probably when we continue work on tools/ Kconfig support to have all the
9  * CONFIG_ needed for properly doing that.
10  */
11 #define mb()		asm volatile(					\
12 				".set	mips2\n\t"			\
13 				"sync\n\t"				\
14 				".set	mips0"				\
15 				: /* no output */			\
16 				: /* no input */			\
17 				: "memory")
18 #define wmb()	mb()
19 #define rmb()	mb()
20 
21 #endif /* _TOOLS_LINUX_ASM_MIPS_BARRIER_H */
22