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-rw-r--r--arch/riscv/include/asm/fence.h12
1 files changed, 12 insertions, 0 deletions
diff --git a/arch/riscv/include/asm/fence.h b/arch/riscv/include/asm/fence.h
new file mode 100644
index 000000000..2b443a3a4
--- /dev/null
+++ b/arch/riscv/include/asm/fence.h
@@ -0,0 +1,12 @@
+#ifndef _ASM_RISCV_FENCE_H
+#define _ASM_RISCV_FENCE_H
+
+#ifdef CONFIG_SMP
+#define RISCV_ACQUIRE_BARRIER "\tfence r , rw\n"
+#define RISCV_RELEASE_BARRIER "\tfence rw, w\n"
+#else
+#define RISCV_ACQUIRE_BARRIER
+#define RISCV_RELEASE_BARRIER
+#endif
+
+#endif /* _ASM_RISCV_FENCE_H */