forked from Minki/linux
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>
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@ -79,11 +79,12 @@ mb_incoherent(void)
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* But after the word is updated, the routine issues an "mf" before returning,
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* and since it's a function call, we don't even need a compiler barrier.
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*/
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#define smp_mb__before_atomic() smp_mb()
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#define smp_mb__after_atomic() do { } while (0)
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#define __smp_mb__before_atomic() __smp_mb()
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#define __smp_mb__after_atomic() do { } while (0)
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#define smp_mb__after_atomic() __smp_mb__after_atomic()
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#else /* 64 bit */
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#define smp_mb__before_atomic() smp_mb()
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#define smp_mb__after_atomic() smp_mb()
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#define __smp_mb__before_atomic() __smp_mb()
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#define __smp_mb__after_atomic() __smp_mb()
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#endif
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#include <asm-generic/barrier.h>
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