113 int arch_read_trylock(arch_rwlock_t *rwlock)  in arch_read_trylock()  argument
117 	val = __insn_tns((int *)&rwlock->lock);  in arch_read_trylock()
120 		rwlock->lock = val;  in arch_read_trylock()
126 		rwlock->lock = val;  in arch_read_trylock()
140 void arch_read_lock(arch_rwlock_t *rwlock)  in arch_read_lock()  argument
143 	while (unlikely(!arch_read_trylock(rwlock)))  in arch_read_lock()
148 void arch_read_unlock(arch_rwlock_t *rwlock)  in arch_read_unlock()  argument
155 		val = __insn_tns((int *)&rwlock->lock);  in arch_read_unlock()
157 			rwlock->lock = val - (1 << _RD_COUNT_SHIFT);  in arch_read_unlock()
172 void arch_write_lock(arch_rwlock_t *rwlock)  in arch_write_lock()  argument
181 	u32 val = __insn_tns((int *)&rwlock->lock);  in arch_write_lock()
184 		rwlock->lock = 1 << _WR_NEXT_SHIFT;  in arch_write_lock()
196 			rwlock->lock = val;  in arch_write_lock()
199 		val = __insn_tns((int *)&rwlock->lock);  in arch_write_lock()
203 	rwlock->lock = __insn_addb(val, 1 << WR_NEXT_SHIFT);  in arch_write_lock()
221 		while ((val = rwlock->lock) & 1)  in arch_write_lock()
227 int arch_write_trylock(arch_rwlock_t *rwlock)  in arch_write_trylock()  argument
229 	u32 val = __insn_tns((int *)&rwlock->lock);  in arch_write_trylock()
237 			rwlock->lock = val;  in arch_write_trylock()
242 	rwlock->lock = 1 << _WR_NEXT_SHIFT;  in arch_write_trylock()
247 void arch_write_unlock(arch_rwlock_t *rwlock)  in arch_write_unlock()  argument
252 	val = __insn_tns((int *)&rwlock->lock);  in arch_write_unlock()
254 		rwlock->lock = 0;  in arch_write_unlock()
260 		val = __insn_tns((int *)&rwlock->lock);  in arch_write_unlock()
266 	rwlock->lock = val;  in arch_write_unlock()