11.3Smrg/* $NetBSD: atomic_cas_32.S,v 1.3 2019/04/17 07:35:38 mrg Exp $ */ 21.1Smatt/*- 31.1Smatt * Copyright (c) 2014 The NetBSD Foundation, Inc. 41.1Smatt * All rights reserved. 51.1Smatt * 61.1Smatt * This code is derived from software contributed to The NetBSD Foundation 71.1Smatt * by Matt Thomas <matt@3am-software.com> 81.1Smatt * 91.1Smatt * Redistribution and use in source and binary forms, with or without 101.1Smatt * modification, are permitted provided that the following conditions 111.1Smatt * are met: 121.1Smatt * 1. Redistributions of source code must retain the above copyright 131.1Smatt * notice, this list of conditions and the following disclaimer. 141.1Smatt * 2. Redistributions in binary form must reproduce the above copyright 151.1Smatt * notice, this list of conditions and the following disclaimer in the 161.1Smatt * documentation and/or other materials provided with the distribution. 171.1Smatt * 181.1Smatt * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 191.1Smatt * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 201.1Smatt * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 211.1Smatt * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 221.1Smatt * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 231.1Smatt * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 241.1Smatt * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 251.1Smatt * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 261.1Smatt * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 271.1Smatt * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 281.1Smatt * POSSIBILITY OF SUCH DAMAGE. 291.1Smatt */ 301.1Smatt 311.1Smatt#include "atomic_op_asm.h" 321.1Smatt 331.1SmattENTRY_NP(_atomic_cas_32) 341.2Smatt mv t0, a0 351.2Smatt1: lr.w a0, 0(t0) 361.2Smatt bne a1, a0, 2f 371.2Smatt sc.w t1, a2, 0(t0) 381.2Smatt bnez t1, 1b 391.1Smatt2: 401.1Smatt ret 411.1SmattEND(_atomic_cas_32) 421.1Smatt 431.1SmattATOMIC_OP_ALIAS(atomic_cas_32,_atomic_cas_32) 441.1SmattATOMIC_OP_ALIAS(atomic_cas_uint,_atomic_cas_32) 451.1SmattSTRONG_ALIAS(_atomic_cas_uint,_atomic_cas_32) 461.3Smrg 471.3SmrgATOMIC_OP_ALIAS(atomic_cas_32_ni,_atomic_cas_32) 481.3SmrgSTRONG_ALIAS(_atomic_cas_32_ni,_atomic_cas_32) 491.3SmrgATOMIC_OP_ALIAS(atomic_cas_uint_ni,_atomic_cas_32) 501.3SmrgSTRONG_ALIAS(_atomic_cas_uint_ni,_atomic_cas_32) 511.3Smrg 521.1Smatt#ifndef _LP64 531.1SmattATOMIC_OP_ALIAS(atomic_cas_ulong,_atomic_cas_32) 541.1SmattSTRONG_ALIAS(_atomic_cas_ulong,_atomic_cas_32) 551.1SmattATOMIC_OP_ALIAS(atomic_cas_ulong_ni,_atomic_cas_32) 561.1SmattSTRONG_ALIAS(_atomic_cas_ulong_ni,_atomic_cas_32) 571.1SmattATOMIC_OP_ALIAS(atomic_cas_ptr,_atomic_cas_32) 581.1SmattSTRONG_ALIAS(_atomic_cas_ptr,_atomic_cas_32) 591.1SmattATOMIC_OP_ALIAS(atomic_cas_ptr_ni,_atomic_cas_32) 601.1SmattSTRONG_ALIAS(_atomic_cas_ptr_ni,_atomic_cas_32) 611.1Smatt#endif 621.1SmattCRT_ALIAS(__sync_val_compare_and_swap_4,_atomic_cas_32) 631.1Smatt 641.1SmattENTRY_NP(_atomic_bool_cas_32) 651.2Smatt mv t0, a0 661.2Smatt li a0, 0 671.2Smatt1: lr.w t1, 0(t0) 681.2Smatt bne a1, t1, 2f 691.2Smatt sc.w t1, a2, 0(t0) 701.2Smatt bnez t1, 1b 711.2Smatt li a0, 1 721.1Smatt2: 731.1Smatt ret 741.1SmattEND(_atomic_bool_cas_32) 751.1Smatt 761.1SmattATOMIC_OP_ALIAS(atomic_bool_cas_32,_atomic_bool_cas_32) 771.1SmattCRT_ALIAS(__bool_val_compare_and_swap_4,_atomic_bool_cas_32) 78