diff options
Diffstat (limited to 'sys/powerpc/include/atomic.h')
| -rw-r--r-- | sys/powerpc/include/atomic.h | 33 |
1 files changed, 32 insertions, 1 deletions
diff --git a/sys/powerpc/include/atomic.h b/sys/powerpc/include/atomic.h index 015a283e2de7..b2d7549e5bd0 100644 --- a/sys/powerpc/include/atomic.h +++ b/sys/powerpc/include/atomic.h @@ -1137,7 +1137,38 @@ atomic_thread_fence_seq_cst(void) #define atomic_cmpset_short atomic_cmpset_16 #define atomic_fcmpset_char atomic_fcmpset_8 #define atomic_fcmpset_short atomic_fcmpset_16 -#endif +#define atomic_set_short atomic_set_16 +#define atomic_clear_short atomic_clear_16 +#else + +static __inline void +atomic_set_short(volatile u_short *p, u_short bit) +{ + u_short v; + + v = atomic_load_short(p); + for (;;) { + if (atomic_fcmpset_16(p, &v, v | bit)) + break; + } +} + +static __inline void +atomic_clear_short(volatile u_short *p, u_short bit) +{ + u_short v; + + v = atomic_load_short(p); + for (;;) { + if (atomic_fcmpset_16(p, &v, v & ~bit)) + break; + } +} + +#define atomic_set_16 atomic_set_short +#define atomic_clear_16 atomic_clear_short + +#endif /* ISA_206_ATOMICS */ /* These need sys/_atomic_subword.h on non-ISA-2.06-atomic platforms. */ ATOMIC_CMPSET_ACQ_REL(char); |