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arm64: define __smp_xxx

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This defines __smp_xxx barriers for arm64,
for use by virtualization.

smp_xxx barriers are removed as they are
defined correctly by asm-generic/barriers.h

Note: arm64 does not support !SMP config,
so smp_xxx and __smp_xxx are always equivalent.

Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org>
This commit is contained in:
Michael S. Tsirkin 2015-12-27 15:04:42 +02:00
parent 003472a93a
commit fd072df850
1 changed files with 5 additions and 5 deletions
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10
arch/arm64/include/asm/barrier.h
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@ -35,11 +35,11 @@
#define dma_rmb() dmb(oshld)
#define dma_wmb() dmb(oshst)
#define smp_mb() dmb(ish)
#define smp_rmb() dmb(ishld)
#define smp_wmb() dmb(ishst)
#define __smp_mb() dmb(ish)
#define __smp_rmb() dmb(ishld)
#define __smp_wmb() dmb(ishst)
#define smp_store_release(p, v) \
#define __smp_store_release(p, v) \
do { \
compiletime_assert_atomic_type(*p); \
switch (sizeof(*p)) { \
@ -62,7 +62,7 @@ do { \
} \
} while (0)
#define smp_load_acquire(p) \
#define __smp_load_acquire(p) \
({ \
union { typeof(*p) __val; char __c[1]; } __u; \
compiletime_assert_atomic_type(*p); \