1/* $NetBSD: atomic_swap_32.S,v 1.1 2014/09/19 17:36:24 matt Exp $ */ 2 3/*- 4 * Copyright (c) 2014 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to The NetBSD Foundation 8 * by Matt Thomas of 3am Software Foundry. 9 * 10 * Redistribution and use in source and binary forms, with or without 11 * modification, are permitted provided that the following conditions 12 * are met: 13 * 1. Redistributions of source code must retain the above copyright 14 * notice, this list of conditions and the following disclaimer. 15 * 2. Redistributions in binary form must reproduce the above copyright 16 * notice, this list of conditions and the following disclaimer in the 17 * documentation and/or other materials provided with the distribution. 18 * 19 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 20 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 21 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 22 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 23 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 24 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 25 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 26 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 27 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 28 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 29 * POSSIBILITY OF SUCH DAMAGE. 30 */ 31 32#include "atomic_op_asm.h" 33 34ENTRY_NP(_atomic_swap_32) 35 amoswap.w.aq a0, a1, 0(a0) 36 ret 37END(_atomic_swap_32) 38 39ATOMIC_OP_ALIAS(atomic_swap_32,_atomic_swap_32) 40ATOMIC_OP_ALIAS(atomic_swap_uint,_atomic_swap_32) 41#ifndef _LP64 42ATOMIC_OP_ALIAS(atomic_swap_ulong,_atomic_swap_32) 43ATOMIC_OP_ALIAS(atomic_swap_ptr,_atomic_swap_32) 44#endif 45CRT_ALIAS(__sync_lock_test_and_set_4,_atomic_swap_32) 46CRT_ALIAS(__atomic_exchange_4,_atomic_swap_32) 47STRONG_ALIAS(_atomic_swap_uint,_atomic_swap_32) 48#ifndef _LP64 49STRONG_ALIAS(_atomic_swap_ulong,_atomic_swap_32) 50STRONG_ALIAS(_atomic_swap_ptr,_atomic_swap_32) 51#endif 52 53ENTRY_NP(_atomic_release_32) 54 amoswap.w.rl zero, zero, 0(a0) 55 ret 56END(_atomic_release_32) 57ATOMIC_OP_ALIAS(atomic_release_32,_atomic_release_32) 58 59CRT_ALIAS(__sync_lock_release_4,_atomic_release_32) 60