30 #define arch_spin_unlock_wait(lock) \  argument
31 	do { while (arch_spin_is_locked(lock)) cpu_relax(); } while (0)
33 #define arch_spin_lock_flags(lock, flags) arch_spin_lock(lock)  argument
35 static inline void arch_spin_lock(arch_spinlock_t *lock)  in arch_spin_lock()  argument
71 	: "=&r" (lockval), "=&r" (newval), "=&r" (tmp), "+Q" (*lock)  in arch_spin_lock()
72 	: "Q" (lock->owner), "I" (1 << TICKET_SHIFT)  in arch_spin_lock()
76 static inline int arch_spin_trylock(arch_spinlock_t *lock)  in arch_spin_trylock()  argument
100 	: "=&r" (lockval), "=&r" (tmp), "+Q" (*lock)  in arch_spin_trylock()
107 static inline void arch_spin_unlock(arch_spinlock_t *lock)  in arch_spin_unlock()  argument
120 	: "=Q" (lock->owner), "=&r" (tmp)  in arch_spin_unlock()
125 static inline int arch_spin_value_unlocked(arch_spinlock_t lock)  in arch_spin_value_unlocked()  argument
127 	return lock.owner == lock.next;  in arch_spin_value_unlocked()
130 static inline int arch_spin_is_locked(arch_spinlock_t *lock)  in arch_spin_is_locked()  argument
132 	return !arch_spin_value_unlocked(READ_ONCE(*lock));  in arch_spin_is_locked()
135 static inline int arch_spin_is_contended(arch_spinlock_t *lock)  in arch_spin_is_contended()  argument
137 	arch_spinlock_t lockval = READ_ONCE(*lock);  in arch_spin_is_contended()
174 	: "=&r" (tmp), "+Q" (rw->lock)  in arch_write_lock()
195 	: "=&r" (tmp), "+Q" (rw->lock)  in arch_write_trylock()
207 	: "=Q" (rw->lock) :: "memory");  in arch_write_unlock()
211 #define arch_write_can_lock(x)		((x)->lock == 0)
252 	: "=&r" (tmp), "=&r" (tmp2), "+Q" (rw->lock)  in arch_read_lock()
272 	: "=&r" (tmp), "=&r" (tmp2), "+Q" (rw->lock)  in arch_read_unlock()
298 	: "=&r" (tmp), "=&r" (tmp2), "+Q" (rw->lock)  in arch_read_trylock()
306 #define arch_read_can_lock(x)		((x)->lock < 0x80000000)
308 #define arch_read_lock_flags(lock, flags) arch_read_lock(lock)  argument
309 #define arch_write_lock_flags(lock, flags) arch_write_lock(lock)  argument
311 #define arch_spin_relax(lock)	cpu_relax()  argument
312 #define arch_read_relax(lock)	cpu_relax()  argument
313 #define arch_write_relax(lock)	cpu_relax()  argument