From 8e4bff4cab0ddac6060645b0715210484d02ff40 Mon Sep 17 00:00:00 2001
From: Yuval Adam <_@yuv.al>
Date: Wed, 30 Aug 2017 08:25:59 +0000
Subject: Initial file dump from open source release

---
 arch/cris/include/asm/barrier.h | 25 +++++++++++++++++++++++++
 1 file changed, 25 insertions(+)
 create mode 100644 arch/cris/include/asm/barrier.h

(limited to 'arch/cris/include/asm/barrier.h')

diff --git a/arch/cris/include/asm/barrier.h b/arch/cris/include/asm/barrier.h
new file mode 100644
index 00000000..198ad7fa
--- /dev/null
+++ b/arch/cris/include/asm/barrier.h
@@ -0,0 +1,25 @@
+#ifndef __ASM_CRIS_BARRIER_H
+#define __ASM_CRIS_BARRIER_H
+
+#define nop() __asm__ __volatile__ ("nop");
+
+#define barrier() __asm__ __volatile__("": : :"memory")
+#define mb() barrier()
+#define rmb() mb()
+#define wmb() mb()
+#define read_barrier_depends() do { } while(0)
+#define set_mb(var, value)  do { var = value; mb(); } while (0)
+
+#ifdef CONFIG_SMP
+#define smp_mb()        mb()
+#define smp_rmb()       rmb()
+#define smp_wmb()       wmb()
+#define smp_read_barrier_depends()     read_barrier_depends()
+#else
+#define smp_mb()        barrier()
+#define smp_rmb()       barrier()
+#define smp_wmb()       barrier()
+#define smp_read_barrier_depends()     do { } while(0)
+#endif
+
+#endif /* __ASM_CRIS_BARRIER_H */
-- 
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