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-rw-r--r--tools/perf/perf.h6
1 files changed, 6 insertions, 0 deletions
diff --git a/tools/perf/perf.h b/tools/perf/perf.h
index 87f4ec6d1f36..a89cbbb61801 100644
--- a/tools/perf/perf.h
+++ b/tools/perf/perf.h
@@ -88,6 +88,12 @@ void get_term_dimensions(struct winsize *ws);
#define CPUINFO_PROC "Processor"
#endif
+#ifdef __aarch64__
+#include "../../arch/arm64/include/asm/unistd.h"
+#define rmb() asm volatile("dmb ld" ::: "memory")
+#define cpu_relax() asm volatile("yield" ::: "memory")
+#endif
+
#ifdef __mips__
#include "../../arch/mips/include/asm/unistd.h"
#define rmb() asm volatile( \