1/* $NetBSD: atomic_add_32.S,v 1.2 2015/03/27 06:42:37 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_inc_32) 35 li a1, 1 36ENTRY_NP(_atomic_add_32) 37 amoadd.w.aq a0, a1, 0(a0) 38 ret 39END(_atomic_add_32) 40END(_atomic_inc_32) 41 42ATOMIC_OP_ALIAS(atomic_add_32,_atomic_add_32) 43ATOMIC_OP_ALIAS(atomic_add_int,_atomic_add_32) 44STRONG_ALIAS(_atomic_add_int,_atomic_add_32) 45#ifndef _LP64 46ATOMIC_OP_ALIAS(atomic_add_long,_atomic_add_32) 47STRONG_ALIAS(_atomic_add_long,_atomic_add_32) 48ATOMIC_OP_ALIAS(atomic_add_ptr,_atomic_add_32) 49STRONG_ALIAS(_atomic_add_ptr,_atomic_add_32) 50#endif 51CRT_ALIAS(__sync_fetch_and_add_4,_atomic_add_32) 52CRT_ALIAS(__atomic_fetch_add_4,_atomic_add_32) 53 54ATOMIC_OP_ALIAS(atomic_inc_32,_atomic_inc_32) 55ATOMIC_OP_ALIAS(atomic_inc_uint,_atomic_inc_32) 56STRONG_ALIAS(_atomic_inc_uint,_atomic_inc_32) 57#ifndef _LP64 58ATOMIC_OP_ALIAS(atomic_inc_ulong,_atomic_inc_32) 59STRONG_ALIAS(_atomic_inc_ulong,_atomic_inc_32) 60ATOMIC_OP_ALIAS(atomic_inc_ptr,_atomic_inc_32) 61STRONG_ALIAS(_atomic_inc_ptr,_atomic_inc_32) 62#endif 63 64ENTRY_NP(_atomic_inc_32_nv) 65 li a1, 1 66ENTRY_NP(_atomic_add_32_nv) 67 amoadd.w.aq t0, a1, 0(a0) /* update memory and get old value */ 68 INT_ADD a0, t0, a1 /* turn into new value */ 69 ret 70END(_atomic_add_32_nv) 71END(_atomic_inc_32_nv) 72 73ATOMIC_OP_ALIAS(atomic_add_32_nv,_atomic_add_32_nv) 74ATOMIC_OP_ALIAS(atomic_add_int_nv,_atomic_add_32_nv) 75STRONG_ALIAS(_atomic_add_int_nv,_atomic_add_32_nv) 76#ifndef _LP64 77ATOMIC_OP_ALIAS(atomic_add_long_nv,_atomic_add_32_nv) 78STRONG_ALIAS(_atomic_add_long_nv,_atomic_add_32_nv) 79ATOMIC_OP_ALIAS(atomic_add_ptr_nv,_atomic_add_32_nv) 80STRONG_ALIAS(_atomic_add_ptr_nv,_atomic_add_32_nv) 81#endif 82CRT_ALIAS(__sync_add_and_fetch_4,_atomic_add_32_nv) 83CRT_ALIAS(__atomic_add_fetch_4,_atomic_add_32_nv) 84 85ATOMIC_OP_ALIAS(atomic_inc_32_nv,_atomic_inc_32_nv) 86ATOMIC_OP_ALIAS(atomic_inc_uint_nv,_atomic_inc_32_nv) 87STRONG_ALIAS(_atomic_inc_uint_nv,_atomic_inc_32_nv) 88#ifndef _LP64 89ATOMIC_OP_ALIAS(atomic_inc_ulong_nv,_atomic_inc_32_nv) 90STRONG_ALIAS(_atomic_inc_ulong_nv,_atomic_inc_32_nv) 91ATOMIC_OP_ALIAS(atomic_inc_ptr_nv,_atomic_inc_32_nv) 92STRONG_ALIAS(_atomic_inc_ptr_nv,_atomic_inc_32_nv) 93#endif 94