104 int arch_read_trylock(arch_rwlock_t *rwlock)  in arch_read_trylock()  argument
108 	val = __insn_tns((int *)&rwlock->lock);  in arch_read_trylock()
111 		rwlock->lock = val;  in arch_read_trylock()
117 		rwlock->lock = val;  in arch_read_trylock()
131 void arch_read_lock(arch_rwlock_t *rwlock)  in arch_read_lock()  argument
134 	while (unlikely(!arch_read_trylock(rwlock)))  in arch_read_lock()
139 void arch_read_unlock(arch_rwlock_t *rwlock)  in arch_read_unlock()  argument
146 		val = __insn_tns((int *)&rwlock->lock);  in arch_read_unlock()
148 			rwlock->lock = val - (1 << _RD_COUNT_SHIFT);  in arch_read_unlock()
163 void arch_write_lock(arch_rwlock_t *rwlock)  in arch_write_lock()  argument
172 	u32 val = __insn_tns((int *)&rwlock->lock);  in arch_write_lock()
175 		rwlock->lock = 1 << _WR_NEXT_SHIFT;  in arch_write_lock()
187 			rwlock->lock = val;  in arch_write_lock()
190 		val = __insn_tns((int *)&rwlock->lock);  in arch_write_lock()
194 	rwlock->lock = __insn_addb(val, 1 << WR_NEXT_SHIFT);  in arch_write_lock()
212 		while ((val = rwlock->lock) & 1)  in arch_write_lock()
218 int arch_write_trylock(arch_rwlock_t *rwlock)  in arch_write_trylock()  argument
220 	u32 val = __insn_tns((int *)&rwlock->lock);  in arch_write_trylock()
228 			rwlock->lock = val;  in arch_write_trylock()
233 	rwlock->lock = 1 << _WR_NEXT_SHIFT;  in arch_write_trylock()
238 void arch_write_unlock(arch_rwlock_t *rwlock)  in arch_write_unlock()  argument
243 	val = __insn_tns((int *)&rwlock->lock);  in arch_write_unlock()
245 		rwlock->lock = 0;  in arch_write_unlock()
251 		val = __insn_tns((int *)&rwlock->lock);  in arch_write_unlock()
257 	rwlock->lock = val;  in arch_write_unlock()