-#else /* SPLPAR || ISERIES */
-#define __spin_yield(x) barrier()
-#define SHARED_PROCESSOR 0
-#endif
-
-/*
- * This returns the old value in the lock, so we succeeded
- * in getting the lock if the return value is 0.
- */
-static __inline__ unsigned long __spin_trylock(spinlock_t *lock)
-{
- unsigned long tmp, tmp2;
-
- __asm__ __volatile__(
-" lwz %1,%3(13) # __spin_trylock\n\
-1: lwarx %0,0,%2\n\
- cmpwi 0,%0,0\n\
- bne- 2f\n\
- stwcx. %1,0,%2\n\
- bne- 1b\n\
- isync\n\
-2:" : "=&r" (tmp), "=&r" (tmp2)
- : "r" (&lock->lock), "i" (offsetof(struct paca_struct, lock_token))
- : "cr0", "memory");
-
- return tmp;
-}
-
-int _raw_spin_trylock(spinlock_t *lock)
-{
- return __spin_trylock(lock) == 0;
-}
-
-EXPORT_SYMBOL(_raw_spin_trylock);
-
-void _raw_spin_lock(spinlock_t *lock)
-{
- while (1) {
- if (likely(__spin_trylock(lock) == 0))
- break;
- do {
- HMT_low();
- if (SHARED_PROCESSOR)
- __spin_yield(lock);
- } while (likely(lock->lock != 0));
- HMT_medium();
- }
-}
-
-EXPORT_SYMBOL(_raw_spin_lock);
-
-void _raw_spin_lock_flags(spinlock_t *lock, unsigned long flags)
-{
- unsigned long flags_dis;
-
- while (1) {
- if (likely(__spin_trylock(lock) == 0))
- break;
- local_save_flags(flags_dis);
- local_irq_restore(flags);
- do {
- HMT_low();
- if (SHARED_PROCESSOR)
- __spin_yield(lock);
- } while (likely(lock->lock != 0));
- HMT_medium();
- local_irq_restore(flags_dis);
- }
-}
-
-EXPORT_SYMBOL(_raw_spin_lock_flags);
-
-void spin_unlock_wait(spinlock_t *lock)
-{
- while (lock->lock) {
- HMT_low();
- if (SHARED_PROCESSOR)
- __spin_yield(lock);
- }
- HMT_medium();
-}
-
-EXPORT_SYMBOL(spin_unlock_wait);
-