diff options
Diffstat (limited to 'arch/sparc64/kernel/semaphore.c')
| -rw-r--r-- | arch/sparc64/kernel/semaphore.c | 12 |
1 files changed, 8 insertions, 4 deletions
diff --git a/arch/sparc64/kernel/semaphore.c b/arch/sparc64/kernel/semaphore.c index 63496c43fe1..a809e63f03e 100644 --- a/arch/sparc64/kernel/semaphore.c +++ b/arch/sparc64/kernel/semaphore.c @@ -32,8 +32,9 @@ static __inline__ int __sem_update_count(struct semaphore *sem, int incr) " add %1, %4, %1\n" " cas [%3], %0, %1\n" " cmp %0, %1\n" +" membar #StoreLoad | #StoreStore\n" " bne,pn %%icc, 1b\n" -" membar #StoreLoad | #StoreStore\n" +" nop\n" : "=&r" (old_count), "=&r" (tmp), "=m" (sem->count) : "r" (&sem->count), "r" (incr), "m" (sem->count) : "cc"); @@ -71,8 +72,9 @@ void up(struct semaphore *sem) " cmp %%g1, %%g7\n" " bne,pn %%icc, 1b\n" " addcc %%g7, 1, %%g0\n" +" membar #StoreLoad | #StoreStore\n" " ble,pn %%icc, 3f\n" -" membar #StoreLoad | #StoreStore\n" +" nop\n" "2:\n" " .subsection 2\n" "3: mov %0, %%g1\n" @@ -128,8 +130,9 @@ void __sched down(struct semaphore *sem) " cmp %%g1, %%g7\n" " bne,pn %%icc, 1b\n" " cmp %%g7, 1\n" +" membar #StoreLoad | #StoreStore\n" " bl,pn %%icc, 3f\n" -" membar #StoreLoad | #StoreStore\n" +" nop\n" "2:\n" " .subsection 2\n" "3: mov %0, %%g1\n" @@ -233,8 +236,9 @@ int __sched down_interruptible(struct semaphore *sem) " cmp %%g1, %%g7\n" " bne,pn %%icc, 1b\n" " cmp %%g7, 1\n" +" membar #StoreLoad | #StoreStore\n" " bl,pn %%icc, 3f\n" -" membar #StoreLoad | #StoreStore\n" +" nop\n" "2:\n" " .subsection 2\n" "3: mov %2, %%g1\n" |