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| 27 | */ |
27 | */ |
| 28 | 28 | ||
| 29 | #ifndef __sparc64_ATOMIC_H__ |
29 | #ifndef __sparc64_ATOMIC_H__ |
| 30 | #define __sparc64_ATOMIC_H__ |
30 | #define __sparc64_ATOMIC_H__ |
| 31 | 31 | ||
| - | 32 | #include <arch/types.h> |
|
| - | 33 | ||
| - | 34 | typedef volatile __u64 atomic_t; |
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| - | 35 | ||
| 32 | /* |
36 | /* |
| 33 | * TODO: these are just placeholders for real implementations of atomic_inc and atomic_dec. |
37 | * TODO: these are just placeholders for real implementations of atomic_inc and atomic_dec. |
| 34 | * WARNING: the following functions cause the code to be preemption-unsafe !!! |
38 | * WARNING: the following functions cause the code to be preemption-unsafe !!! |
| 35 | */ |
39 | */ |
| 36 | 40 | ||
| 37 | static inline atomic_inc(volatile int *val) { |
41 | static inline void atomic_inc(atomic_t *val) { |
| 38 | *val++; |
42 | *val++; |
| 39 | } |
43 | } |
| 40 | 44 | ||
| 41 | static inline atomic_dec(volatile int *val) { |
45 | static inline void atomic_dec(atomic_t *val) { |
| 42 | *val--; |
46 | *val--; |
| 43 | } |
47 | } |
| 44 | 48 | ||
| 45 | #endif |
49 | #endif |