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authorDominik Sliwa <dominik.sliwa@toradex.com>2017-11-21 12:59:41 +0000
committerDominik Sliwa <dominik.sliwa@toradex.com>2017-12-22 09:40:23 +0000
commite34cb44ac7c08783b98a16eec70125e205e6eb12 (patch)
tree1101d23f1a73e5627ae187b07c7a0cf8826e10d1 /backport-include/asm/barrier.h
initial commit
Generated againts 4.14 kernel source with git backports 1d8cc151d365582b42be00af776270b834a7a37d
Diffstat (limited to 'backport-include/asm/barrier.h')
-rw-r--r--backport-include/asm/barrier.h22
1 files changed, 22 insertions, 0 deletions
diff --git a/backport-include/asm/barrier.h b/backport-include/asm/barrier.h
new file mode 100644
index 0000000..9e1e1f1
--- /dev/null
+++ b/backport-include/asm/barrier.h
@@ -0,0 +1,22 @@
+#ifndef __BACKPORT_ASM_BARRIER_H
+#define __BACKPORT_ASM_BARRIER_H
+
+#include <linux/version.h>
+#if LINUX_VERSION_IS_GEQ(3,4,0) || \
+ defined(CONFIG_ALPHA) || defined(CONFIG_MIPS)
+#include_next <asm/barrier.h>
+#endif /* >= 3.4 */
+
+#ifndef dma_rmb
+#define dma_rmb() rmb()
+#endif
+
+#ifndef dma_wmb
+#define dma_wmb() wmb()
+#endif
+
+#ifndef smp_mb__after_atomic
+#define smp_mb__after_atomic smp_mb__after_clear_bit
+#endif
+
+#endif /* __BACKPORT_ASM_BARRIER_H */