tile: define __smp_xxx
This defines __smp_xxx barriers for tile,
for use by virtualization.
Some smp_xxx barriers are removed as they are
defined correctly by asm-generic/barriers.h
Note: for 32 bit, keep smp_mb__after_atomic around since it's faster
than the generic implementation.
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org>
diff --git a/arch/tile/include/asm/barrier.h b/arch/tile/include/asm/barrier.h
index 96a42ae..d552228 100644
--- a/arch/tile/include/asm/barrier.h
+++ b/arch/tile/include/asm/barrier.h
@@ -79,11 +79,12 @@
* But after the word is updated, the routine issues an "mf" before returning,
* and since it's a function call, we don't even need a compiler barrier.
*/
-#define smp_mb__before_atomic() smp_mb()
-#define smp_mb__after_atomic() do { } while (0)
+#define __smp_mb__before_atomic() __smp_mb()
+#define __smp_mb__after_atomic() do { } while (0)
+#define smp_mb__after_atomic() __smp_mb__after_atomic()
#else /* 64 bit */
-#define smp_mb__before_atomic() smp_mb()
-#define smp_mb__after_atomic() smp_mb()
+#define __smp_mb__before_atomic() __smp_mb()
+#define __smp_mb__after_atomic() __smp_mb()
#endif
#include <asm-generic/barrier.h>