29 #define arch_spin_unlock_wait(lock) \  argument
30 	do { while (arch_spin_is_locked(lock)) cpu_relax(); } while (0)
32 #define arch_spin_lock_flags(lock, flags) arch_spin_lock(lock)  argument
34 static inline void arch_spin_lock(arch_spinlock_t *lock)  in arch_spin_lock()  argument
60 	: "=&r" (lockval), "=&r" (newval), "=&r" (tmp), "+Q" (*lock)  in arch_spin_lock()
61 	: "Q" (lock->owner), "I" (1 << TICKET_SHIFT)  in arch_spin_lock()
65 static inline int arch_spin_trylock(arch_spinlock_t *lock)  in arch_spin_trylock()  argument
79 	: "=&r" (lockval), "=&r" (tmp), "+Q" (*lock)  in arch_spin_trylock()
86 static inline void arch_spin_unlock(arch_spinlock_t *lock)  in arch_spin_unlock()  argument
90 	: "=Q" (lock->owner)  in arch_spin_unlock()
91 	: "r" (lock->owner + 1)  in arch_spin_unlock()
95 static inline int arch_spin_value_unlocked(arch_spinlock_t lock)  in arch_spin_value_unlocked()  argument
97 	return lock.owner == lock.next;  in arch_spin_value_unlocked()
100 static inline int arch_spin_is_locked(arch_spinlock_t *lock)  in arch_spin_is_locked()  argument
102 	return !arch_spin_value_unlocked(READ_ONCE(*lock));  in arch_spin_is_locked()
105 static inline int arch_spin_is_contended(arch_spinlock_t *lock)  in arch_spin_is_contended()  argument
107 	arch_spinlock_t lockval = READ_ONCE(*lock);  in arch_spin_is_contended()
133 	: "=&r" (tmp), "+Q" (rw->lock)  in arch_write_lock()
147 	: "=&r" (tmp), "+Q" (rw->lock)  in arch_write_trylock()
158 	: "=Q" (rw->lock) : "r" (0) : "memory");  in arch_write_unlock()
162 #define arch_write_can_lock(x)		((x)->lock == 0)
188 	: "=&r" (tmp), "=&r" (tmp2), "+Q" (rw->lock)  in arch_read_lock()
202 	: "=&r" (tmp), "=&r" (tmp2), "+Q" (rw->lock)  in arch_read_unlock()
217 	: "=&r" (tmp), "+r" (tmp2), "+Q" (rw->lock)  in arch_read_trylock()
225 #define arch_read_can_lock(x)		((x)->lock < 0x80000000)
227 #define arch_read_lock_flags(lock, flags) arch_read_lock(lock)  argument
228 #define arch_write_lock_flags(lock, flags) arch_write_lock(lock)  argument
230 #define arch_spin_relax(lock)	cpu_relax()  argument
231 #define arch_read_relax(lock)	cpu_relax()  argument
232 #define arch_write_relax(lock)	cpu_relax()  argument