diff options
| -rw-r--r-- | sys/alpha/include/atomic.h | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/sys/alpha/include/atomic.h b/sys/alpha/include/atomic.h index af9c397..46aa0b8 100644 --- a/sys/alpha/include/atomic.h +++ b/sys/alpha/include/atomic.h @@ -50,6 +50,7 @@ static __inline void atomic_set_32(volatile u_int32_t *p, u_int32_t v) { u_int32_t temp; +#ifdef __GNUC__ __asm __volatile ( "1:\tldl_l %0, %2\n\t" /* load old value */ "bis %0, %3, %0\n\t" /* calculate new value */ @@ -62,12 +63,14 @@ static __inline void atomic_set_32(volatile u_int32_t *p, u_int32_t v) : "=&r" (temp), "=m" (*p) : "m" (*p), "r" (v) : "memory"); +#endif } static __inline void atomic_clear_32(volatile u_int32_t *p, u_int32_t v) { u_int32_t temp; +#ifdef __GNUC__ __asm __volatile ( "1:\tldl_l %0, %2\n\t" /* load old value */ "bic %0, %3, %0\n\t" /* calculate new value */ @@ -80,12 +83,14 @@ static __inline void atomic_clear_32(volatile u_int32_t *p, u_int32_t v) : "=&r" (temp), "=m" (*p) : "m" (*p), "r" (v) : "memory"); +#endif } static __inline void atomic_add_32(volatile u_int32_t *p, u_int32_t v) { u_int32_t temp; +#ifdef __GNUC__ __asm __volatile ( "1:\tldl_l %0, %2\n\t" /* load old value */ "addl %0, %3, %0\n\t" /* calculate new value */ @@ -98,12 +103,14 @@ static __inline void atomic_add_32(volatile u_int32_t *p, u_int32_t v) : "=&r" (temp), "=m" (*p) : "m" (*p), "r" (v) : "memory"); +#endif } static __inline void atomic_subtract_32(volatile u_int32_t *p, u_int32_t v) { u_int32_t temp; +#ifdef __GNUC__ __asm __volatile ( "1:\tldl_l %0, %2\n\t" /* load old value */ "subl %0, %3, %0\n\t" /* calculate new value */ @@ -116,12 +123,14 @@ static __inline void atomic_subtract_32(volatile u_int32_t *p, u_int32_t v) : "=&r" (temp), "=m" (*p) : "m" (*p), "r" (v) : "memory"); +#endif } static __inline u_int32_t atomic_readandclear_32(volatile u_int32_t *addr) { u_int32_t result,temp; +#ifdef __GNUC__ __asm __volatile ( "wmb\n" /* ensure pending writes have drained */ "1:\tldl_l %0,%3\n\t" /* load current value, asserting lock */ @@ -134,6 +143,7 @@ static __inline u_int32_t atomic_readandclear_32(volatile u_int32_t *addr) : "=&r"(result), "=&r"(temp), "=m" (*addr) : "m"(*addr) : "memory"); +#endif return result; } @@ -142,6 +152,7 @@ static __inline void atomic_set_64(volatile u_int64_t *p, u_int64_t v) { u_int64_t temp; +#ifdef __GNUC__ __asm __volatile ( "1:\tldq_l %0, %2\n\t" /* load old value */ "bis %0, %3, %0\n\t" /* calculate new value */ @@ -154,12 +165,14 @@ static __inline void atomic_set_64(volatile u_int64_t *p, u_int64_t v) : "=&r" (temp), "=m" (*p) : "m" (*p), "r" (v) : "memory"); +#endif } static __inline void atomic_clear_64(volatile u_int64_t *p, u_int64_t v) { u_int64_t temp; +#ifdef __GNUC__ __asm __volatile ( "1:\tldq_l %0, %2\n\t" /* load old value */ "bic %0, %3, %0\n\t" /* calculate new value */ @@ -172,12 +185,14 @@ static __inline void atomic_clear_64(volatile u_int64_t *p, u_int64_t v) : "=&r" (temp), "=m" (*p) : "m" (*p), "r" (v) : "memory"); +#endif } static __inline void atomic_add_64(volatile u_int64_t *p, u_int64_t v) { u_int64_t temp; +#ifdef __GNUC__ __asm __volatile ( "1:\tldq_l %0, %2\n\t" /* load old value */ "addq %0, %3, %0\n\t" /* calculate new value */ @@ -190,12 +205,14 @@ static __inline void atomic_add_64(volatile u_int64_t *p, u_int64_t v) : "=&r" (temp), "=m" (*p) : "m" (*p), "r" (v) : "memory"); +#endif } static __inline void atomic_subtract_64(volatile u_int64_t *p, u_int64_t v) { u_int64_t temp; +#ifdef __GNUC__ __asm __volatile ( "1:\tldq_l %0, %2\n\t" /* load old value */ "subq %0, %3, %0\n\t" /* calculate new value */ @@ -208,12 +225,14 @@ static __inline void atomic_subtract_64(volatile u_int64_t *p, u_int64_t v) : "=&r" (temp), "=m" (*p) : "m" (*p), "r" (v) : "memory"); +#endif } static __inline u_int64_t atomic_readandclear_64(volatile u_int64_t *addr) { u_int64_t result,temp; +#ifdef __GNUC__ __asm __volatile ( "wmb\n" /* ensure pending writes have drained */ "1:\tldq_l %0,%3\n\t" /* load current value, asserting lock */ @@ -226,6 +245,7 @@ static __inline u_int64_t atomic_readandclear_64(volatile u_int64_t *addr) : "=&r"(result), "=&r"(temp), "=m" (*addr) : "m"(*addr) : "memory"); +#endif return result; } @@ -354,6 +374,7 @@ atomic_cmpset_32(volatile u_int32_t* p, u_int32_t cmpval, u_int32_t newval) { u_int32_t ret; +#ifdef __GNUC__ __asm __volatile ( "1:\tldl_l %0, %4\n\t" /* load old value */ "cmpeq %0, %2, %0\n\t" /* compare */ @@ -369,6 +390,7 @@ atomic_cmpset_32(volatile u_int32_t* p, u_int32_t cmpval, u_int32_t newval) : "=&r" (ret), "=m" (*p) : "r" ((long)(int)cmpval), "r" (newval), "m" (*p) : "memory"); +#endif return ret; } @@ -383,6 +405,7 @@ atomic_cmpset_64(volatile u_int64_t* p, u_int64_t cmpval, u_int64_t newval) { u_int64_t ret; +#ifdef __GNUC__ __asm __volatile ( "1:\tldq_l %0, %4\n\t" /* load old value */ "cmpeq %0, %2, %0\n\t" /* compare */ @@ -398,6 +421,7 @@ atomic_cmpset_64(volatile u_int64_t* p, u_int64_t cmpval, u_int64_t newval) : "=&r" (ret), "=m" (*p) : "r" (cmpval), "r" (newval), "m" (*p) : "memory"); +#endif return ret; } |
