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-rw-r--r--kernel/tools/arch/mips/include/asm/barrier.h20
1 files changed, 20 insertions, 0 deletions
diff --git a/kernel/tools/arch/mips/include/asm/barrier.h b/kernel/tools/arch/mips/include/asm/barrier.h
new file mode 100644
index 000000000..80f96f755
--- /dev/null
+++ b/kernel/tools/arch/mips/include/asm/barrier.h
@@ -0,0 +1,20 @@
+#ifndef _TOOLS_LINUX_ASM_MIPS_BARRIER_H
+#define _TOOLS_LINUX_ASM_MIPS_BARRIER_H
+/*
+ * FIXME: This came from tools/perf/perf-sys.h, where it was first introduced
+ * in c1e028ef40b8d6943b767028ba17d4f2ba020edb, more work needed to make it
+ * more closely follow the Linux kernel arch/mips/include/asm/barrier.h file.
+ * Probably when we continue work on tools/ Kconfig support to have all the
+ * CONFIG_ needed for properly doing that.
+ */
+#define mb() asm volatile( \
+ ".set mips2\n\t" \
+ "sync\n\t" \
+ ".set mips0" \
+ : /* no output */ \
+ : /* no input */ \
+ : "memory")
+#define wmb() mb()
+#define rmb() mb()
+
+#endif /* _TOOLS_LINUX_ASM_MIPS_BARRIER_H */