1*5a9be18cSmrg/* $NetBSD: atomic_cas_32.S,v 1.3 2019/04/17 07:35:38 mrg Exp $ */ 26cf6fe02Smatt/*- 36cf6fe02Smatt * Copyright (c) 2014 The NetBSD Foundation, Inc. 46cf6fe02Smatt * All rights reserved. 56cf6fe02Smatt * 66cf6fe02Smatt * This code is derived from software contributed to The NetBSD Foundation 76cf6fe02Smatt * by Matt Thomas <matt@3am-software.com> 86cf6fe02Smatt * 96cf6fe02Smatt * Redistribution and use in source and binary forms, with or without 106cf6fe02Smatt * modification, are permitted provided that the following conditions 116cf6fe02Smatt * are met: 126cf6fe02Smatt * 1. Redistributions of source code must retain the above copyright 136cf6fe02Smatt * notice, this list of conditions and the following disclaimer. 146cf6fe02Smatt * 2. Redistributions in binary form must reproduce the above copyright 156cf6fe02Smatt * notice, this list of conditions and the following disclaimer in the 166cf6fe02Smatt * documentation and/or other materials provided with the distribution. 176cf6fe02Smatt * 186cf6fe02Smatt * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 196cf6fe02Smatt * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 206cf6fe02Smatt * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 216cf6fe02Smatt * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 226cf6fe02Smatt * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 236cf6fe02Smatt * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 246cf6fe02Smatt * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 256cf6fe02Smatt * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 266cf6fe02Smatt * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 276cf6fe02Smatt * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 286cf6fe02Smatt * POSSIBILITY OF SUCH DAMAGE. 296cf6fe02Smatt */ 306cf6fe02Smatt 316cf6fe02Smatt#include "atomic_op_asm.h" 326cf6fe02Smatt 336cf6fe02SmattENTRY_NP(_atomic_cas_32) 342d9adf0dSmatt mv t0, a0 352d9adf0dSmatt1: lr.w a0, 0(t0) 362d9adf0dSmatt bne a1, a0, 2f 372d9adf0dSmatt sc.w t1, a2, 0(t0) 382d9adf0dSmatt bnez t1, 1b 396cf6fe02Smatt2: 406cf6fe02Smatt ret 416cf6fe02SmattEND(_atomic_cas_32) 426cf6fe02Smatt 436cf6fe02SmattATOMIC_OP_ALIAS(atomic_cas_32,_atomic_cas_32) 446cf6fe02SmattATOMIC_OP_ALIAS(atomic_cas_uint,_atomic_cas_32) 456cf6fe02SmattSTRONG_ALIAS(_atomic_cas_uint,_atomic_cas_32) 46*5a9be18cSmrg 47*5a9be18cSmrgATOMIC_OP_ALIAS(atomic_cas_32_ni,_atomic_cas_32) 48*5a9be18cSmrgSTRONG_ALIAS(_atomic_cas_32_ni,_atomic_cas_32) 49*5a9be18cSmrgATOMIC_OP_ALIAS(atomic_cas_uint_ni,_atomic_cas_32) 50*5a9be18cSmrgSTRONG_ALIAS(_atomic_cas_uint_ni,_atomic_cas_32) 51*5a9be18cSmrg 526cf6fe02Smatt#ifndef _LP64 536cf6fe02SmattATOMIC_OP_ALIAS(atomic_cas_ulong,_atomic_cas_32) 546cf6fe02SmattSTRONG_ALIAS(_atomic_cas_ulong,_atomic_cas_32) 556cf6fe02SmattATOMIC_OP_ALIAS(atomic_cas_ulong_ni,_atomic_cas_32) 566cf6fe02SmattSTRONG_ALIAS(_atomic_cas_ulong_ni,_atomic_cas_32) 576cf6fe02SmattATOMIC_OP_ALIAS(atomic_cas_ptr,_atomic_cas_32) 586cf6fe02SmattSTRONG_ALIAS(_atomic_cas_ptr,_atomic_cas_32) 596cf6fe02SmattATOMIC_OP_ALIAS(atomic_cas_ptr_ni,_atomic_cas_32) 606cf6fe02SmattSTRONG_ALIAS(_atomic_cas_ptr_ni,_atomic_cas_32) 616cf6fe02Smatt#endif 626cf6fe02SmattCRT_ALIAS(__sync_val_compare_and_swap_4,_atomic_cas_32) 636cf6fe02Smatt 646cf6fe02SmattENTRY_NP(_atomic_bool_cas_32) 652d9adf0dSmatt mv t0, a0 662d9adf0dSmatt li a0, 0 672d9adf0dSmatt1: lr.w t1, 0(t0) 682d9adf0dSmatt bne a1, t1, 2f 692d9adf0dSmatt sc.w t1, a2, 0(t0) 702d9adf0dSmatt bnez t1, 1b 712d9adf0dSmatt li a0, 1 726cf6fe02Smatt2: 736cf6fe02Smatt ret 746cf6fe02SmattEND(_atomic_bool_cas_32) 756cf6fe02Smatt 766cf6fe02SmattATOMIC_OP_ALIAS(atomic_bool_cas_32,_atomic_bool_cas_32) 776cf6fe02SmattCRT_ALIAS(__bool_val_compare_and_swap_4,_atomic_bool_cas_32) 78