diff options
Diffstat (limited to 'sys/alpha/include/lock.h')
| -rw-r--r-- | sys/alpha/include/lock.h | 32 |
1 files changed, 31 insertions, 1 deletions
diff --git a/sys/alpha/include/lock.h b/sys/alpha/include/lock.h index c2ae0fa..1066d46 100644 --- a/sys/alpha/include/lock.h +++ b/sys/alpha/include/lock.h @@ -35,10 +35,40 @@ * It is an error to hold one of these locks while a process is sleeping. */ struct simplelock { - volatile int lock_data; + volatile u_int lock_data; }; +/* functions in mp_machdep.c */ +void s_lock_init __P((struct simplelock *)); +void s_lock __P((struct simplelock *)); +int s_lock_try __P((struct simplelock *)); +void ss_lock __P((struct simplelock *)); +void ss_unlock __P((struct simplelock *)); +void s_lock_np __P((struct simplelock *)); +void s_unlock_np __P((struct simplelock *)); + +/* inline simplelock functions */ +static __inline void +s_unlock(struct simplelock *lkp) +{ + alpha_mb(); + lkp->lock_data = 0; +} + +#if !defined(SIMPLELOCK_DEBUG) && NCPUS > 1 +/* + * This set of defines turns on the real functions in i386/isa/apic_ipl.s. + */ +#define simple_lock_init(alp) s_lock_init(alp) +#define simple_lock(alp) s_lock(alp) +#define simple_lock_try(alp) s_lock_try(alp) +#define simple_unlock(alp) s_unlock(alp) + +#endif /* !SIMPLELOCK_DEBUG && NCPUS > 1 */ + #define COM_LOCK() #define COM_UNLOCK() +#define COM_DISABLE_INTR() COM_LOCK() +#define COM_ENABLE_INTR() COM_UNLOCK() #endif /* !_MACHINE_LOCK_H_ */ |
