perf tools: Move arm(64) barrier.h stuff to tools/arch/arm*/include/asm/barrier.h

[firefly-linux-kernel-4.4.55.git] / tools / arch / arm / include / asm / barrier.h

diff --git a/tools/arch/arm/include/asm/barrier.h b/tools/arch/arm/include/asm/barrier.h
new file mode 100644 (file)
index 0000000..005c618
--- /dev/null
+++ b/tools/arch/arm/include/asm/barrier.h
@@ -0,0 +1,12 @@
+#ifndef _TOOLS_LINUX_ASM_ARM_BARRIER_H
+#define _TOOLS_LINUX_ASM_ARM_BARRIER_H
+
+/*
+ * Use the __kuser_memory_barrier helper in the CPU helper page. See
+ * arch/arm/kernel/entry-armv.S in the kernel source for details.
+ */
+#define mb()           ((void(*)(void))0xffff0fa0)()
+#define wmb()          ((void(*)(void))0xffff0fa0)()
+#define rmb()          ((void(*)(void))0xffff0fa0)()
+
+#endif /* _TOOLS_LINUX_ASM_ARM_BARRIER_H */