diff options
Diffstat (limited to 'include/asm-alpha/atomic.h')
| -rw-r--r-- | include/asm-alpha/atomic.h | 14 |
1 files changed, 10 insertions, 4 deletions
diff --git a/include/asm-alpha/atomic.h b/include/asm-alpha/atomic.h index 1b383e3cb68..20ac3d95ecd 100644 --- a/include/asm-alpha/atomic.h +++ b/include/asm-alpha/atomic.h @@ -1,6 +1,8 @@ #ifndef _ALPHA_ATOMIC_H #define _ALPHA_ATOMIC_H +#include <asm/barrier.h> + /* * Atomic operations that C can't guarantee us. Useful for * resource counting etc... @@ -100,18 +102,19 @@ static __inline__ void atomic64_sub(long i, atomic64_t * v) static __inline__ long atomic_add_return(int i, atomic_t * v) { long temp, result; + smp_mb(); __asm__ __volatile__( "1: ldl_l %0,%1\n" " addl %0,%3,%2\n" " addl %0,%3,%0\n" " stl_c %0,%1\n" " beq %0,2f\n" - " mb\n" ".subsection 2\n" "2: br 1b\n" ".previous" :"=&r" (temp), "=m" (v->counter), "=&r" (result) :"Ir" (i), "m" (v->counter) : "memory"); + smp_mb(); return result; } @@ -120,54 +123,57 @@ static __inline__ long atomic_add_return(int i, atomic_t * v) static __inline__ long atomic64_add_return(long i, atomic64_t * v) { long temp, result; + smp_mb(); __asm__ __volatile__( "1: ldq_l %0,%1\n" " addq %0,%3,%2\n" " addq %0,%3,%0\n" " stq_c %0,%1\n" " beq %0,2f\n" - " mb\n" ".subsection 2\n" "2: br 1b\n" ".previous" :"=&r" (temp), "=m" (v->counter), "=&r" (result) :"Ir" (i), "m" (v->counter) : "memory"); + smp_mb(); return result; } static __inline__ long atomic_sub_return(int i, atomic_t * v) { long temp, result; + smp_mb(); __asm__ __volatile__( "1: ldl_l %0,%1\n" " subl %0,%3,%2\n" " subl %0,%3,%0\n" " stl_c %0,%1\n" " beq %0,2f\n" - " mb\n" ".subsection 2\n" "2: br 1b\n" ".previous" :"=&r" (temp), "=m" (v->counter), "=&r" (result) :"Ir" (i), "m" (v->counter) : "memory"); + smp_mb(); return result; } static __inline__ long atomic64_sub_return(long i, atomic64_t * v) { long temp, result; + smp_mb(); __asm__ __volatile__( "1: ldq_l %0,%1\n" " subq %0,%3,%2\n" " subq %0,%3,%0\n" " stq_c %0,%1\n" " beq %0,2f\n" - " mb\n" ".subsection 2\n" "2: br 1b\n" ".previous" :"=&r" (temp), "=m" (v->counter), "=&r" (result) :"Ir" (i), "m" (v->counter) : "memory"); + smp_mb(); return result; } |