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-rw-r--r--kernel/tools/arch/arm/include/asm/barrier.h12
1 files changed, 12 insertions, 0 deletions
diff --git a/kernel/tools/arch/arm/include/asm/barrier.h b/kernel/tools/arch/arm/include/asm/barrier.h
new file mode 100644
index 000000000..005c618a0
--- /dev/null
+++ b/kernel/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 */