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authorMichael S. Tsirkin <mst@redhat.com>2015-12-27 15:04:42 +0200
committerMichael S. Tsirkin <mst@redhat.com>2016-01-12 20:46:55 +0200
commiteebd1b927822f13429ec09d0a48fe92716b22840 (patch)
treee2a2454ce69bd21eb3077e73ad853f5548b68e4a /arch/ia64
parent27f6cabc0ebf9e452c3251bf0511c41cf2c75dde (diff)
downloadop-kernel-dev-eebd1b927822f13429ec09d0a48fe92716b22840.zip
op-kernel-dev-eebd1b927822f13429ec09d0a48fe92716b22840.tar.gz
ia64: define __smp_xxx
This defines __smp_xxx barriers for ia64, for use by virtualization. smp_xxx barriers are removed as they are defined correctly by asm-generic/barriers.h This reduces the amount of arch-specific boiler-plate code. Signed-off-by: Michael S. Tsirkin <mst@redhat.com> Acked-by: Tony Luck <tony.luck@intel.com> Acked-by: Arnd Bergmann <arnd@arndb.de> Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Diffstat (limited to 'arch/ia64')
-rw-r--r--arch/ia64/include/asm/barrier.h14
1 files changed, 5 insertions, 9 deletions
diff --git a/arch/ia64/include/asm/barrier.h b/arch/ia64/include/asm/barrier.h
index 2f93348..588f161 100644
--- a/arch/ia64/include/asm/barrier.h
+++ b/arch/ia64/include/asm/barrier.h
@@ -42,28 +42,24 @@
#define dma_rmb() mb()
#define dma_wmb() mb()
-#ifdef CONFIG_SMP
-# define smp_mb() mb()
-#else
-# define smp_mb() barrier()
-#endif
+# define __smp_mb() mb()
-#define smp_mb__before_atomic() barrier()
-#define smp_mb__after_atomic() barrier()
+#define __smp_mb__before_atomic() barrier()
+#define __smp_mb__after_atomic() barrier()
/*
* IA64 GCC turns volatile stores into st.rel and volatile loads into ld.acq no
* need for asm trickery!
*/
-#define smp_store_release(p, v) \
+#define __smp_store_release(p, v) \
do { \
compiletime_assert_atomic_type(*p); \
barrier(); \
WRITE_ONCE(*p, v); \
} while (0)
-#define smp_load_acquire(p) \
+#define __smp_load_acquire(p) \
({ \
typeof(*p) ___p1 = READ_ONCE(*p); \
compiletime_assert_atomic_type(*p); \
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