| 30,8 → 30,9 |
|---|
| #define __sparc64_ATOMIC_H__ |
| |
| #include <arch/types.h> |
| #include <typedefs.h> |
| |
| typedef struct { volatile __u64 count; } atomic_t; |
| |
| /** Atomic add operation. |
| * |
| * Use atomic compare and swap operation to atomically add signed value. |
| 41,7 → 42,7 |
|---|
| * |
| * @return Value of the atomic variable as it existed before addition. |
| */ |
| static inline long atomic_add(atomic_t *val, int i) |
| static inline count_t atomic_add(atomic_t *val, int i) |
| { |
| __u64 a, b; |
| volatile __u64 x = (__u64) &val->count; |
| 61,22 → 62,22 |
|---|
| return a; |
| } |
| |
| static inline long atomic_preinc(atomic_t *val) |
| static inline count_t atomic_preinc(atomic_t *val) |
| { |
| return atomic_add(val, 1) + 1; |
| } |
| |
| static inline long atomic_postinc(atomic_t *val) |
| static inline count_t atomic_postinc(atomic_t *val) |
| { |
| return atomic_add(val, 1); |
| } |
| |
| static inline long atomic_predec(atomic_t *val) |
| static inline count_t atomic_predec(atomic_t *val) |
| { |
| return atomic_add(val, -1) - 1; |
| } |
| |
| static inline long atomic_postdec(atomic_t *val) |
| static inline count_t atomic_postdec(atomic_t *val) |
| { |
| return atomic_add(val, -1); |
| } |
| 91,4 → 92,14 |
|---|
| (void) atomic_add(val, -1); |
| } |
| |
| static inline void atomic_set(atomic_t *val, __u64 i) |
| { |
| val->count = i; |
| } |
| |
| static inline __u64 atomic_get(atomic_t *val) |
| { |
| return val->count; |
| } |
| |
| #endif |