atomic_cas.S revision 1.7.12.1
1 1.7.12.1 tls /* $NetBSD: atomic_cas.S,v 1.7.12.1 2014/08/19 23:45:13 tls Exp $ */ 2 1.2 ad 3 1.2 ad /*- 4 1.3 ad * Copyright (c) 2007, 2008 The NetBSD Foundation, Inc. 5 1.2 ad * All rights reserved. 6 1.2 ad * 7 1.2 ad * This code is derived from software contributed to The NetBSD Foundation 8 1.2 ad * by Jason R. Thorpe. 9 1.2 ad * 10 1.2 ad * Redistribution and use in source and binary forms, with or without 11 1.2 ad * modification, are permitted provided that the following conditions 12 1.2 ad * are met: 13 1.2 ad * 1. Redistributions of source code must retain the above copyright 14 1.2 ad * notice, this list of conditions and the following disclaimer. 15 1.2 ad * 2. Redistributions in binary form must reproduce the above copyright 16 1.2 ad * notice, this list of conditions and the following disclaimer in the 17 1.2 ad * documentation and/or other materials provided with the distribution. 18 1.2 ad * 19 1.2 ad * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 20 1.2 ad * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 21 1.2 ad * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 22 1.2 ad * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 23 1.2 ad * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 24 1.2 ad * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 25 1.2 ad * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 26 1.2 ad * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 27 1.2 ad * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 28 1.2 ad * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 29 1.2 ad * POSSIBILITY OF SUCH DAMAGE. 30 1.2 ad */ 31 1.2 ad 32 1.2 ad #include "atomic_op_asm.h" 33 1.2 ad 34 1.7 matt __RCSID("$NetBSD: atomic_cas.S,v 1.7.12.1 2014/08/19 23:45:13 tls Exp $") 35 1.7 matt 36 1.2 ad .text 37 1.6 chs ENTRY(_atomic_cas_32) 38 1.7.12.1 tls mr %r10,%r3 39 1.7.12.1 tls 1: lwarx %r3,0,%r10 40 1.7.12.1 tls cmpw %r3,%r4 41 1.7.12.1 tls bnelr- 42 1.7.12.1 tls stwcx. %r5,0,%r10 43 1.7.12.1 tls beqlr+ 44 1.7.12.1 tls b 1b 45 1.7 matt END(_atomic_cas_32) 46 1.3 ad 47 1.2 ad ATOMIC_OP_ALIAS(atomic_cas_32,_atomic_cas_32) 48 1.3 ad ATOMIC_OP_ALIAS(atomic_cas_32_ni,_atomic_cas_32) 49 1.3 ad STRONG_ALIAS(_atomic_cas_32_ni,_atomic_cas_32) 50 1.7.12.1 tls 51 1.7.12.1 tls ATOMIC_OP_ALIAS(atomic_cas_uint,_atomic_cas_32) 52 1.3 ad ATOMIC_OP_ALIAS(atomic_cas_uint_ni,_atomic_cas_32) 53 1.7.12.1 tls 54 1.7.12.1 tls STRONG_ALIAS(_atomic_cas_uint,_atomic_cas_32) 55 1.3 ad STRONG_ALIAS(_atomic_cas_uint_ni,_atomic_cas_32) 56 1.7.12.1 tls 57 1.7.12.1 tls #if defined(_LP64) 58 1.7.12.1 tls ENTRY(_atomic_cas_64) 59 1.7.12.1 tls mr %r10,%r3 60 1.7.12.1 tls 1: ldarx %r3,0,%r10 61 1.7.12.1 tls cmpd %r3,%r4 62 1.7.12.1 tls bnelr- 63 1.7.12.1 tls stdcx. %r5,0,%r10 64 1.7.12.1 tls beqlr+ 65 1.7.12.1 tls b 1b 66 1.7.12.1 tls END(_atomic_cas_64) 67 1.7.12.1 tls 68 1.7.12.1 tls ATOMIC_OP_ALIAS(atomic_cas_64,_atomic_cas_64) 69 1.7.12.1 tls ATOMIC_OP_ALIAS(atomic_cas_64_ni,_atomic_cas_64) 70 1.7.12.1 tls STRONG_ALIAS(_atomic_cas_64_ni,_atomic_cas_64) 71 1.7.12.1 tls 72 1.7.12.1 tls ATOMIC_OP_ALIAS(atomic_cas_ulong,_atomic_cas_64) 73 1.7.12.1 tls ATOMIC_OP_ALIAS(atomic_cas_ulong_ni,_atomic_cas_64) 74 1.7.12.1 tls 75 1.7.12.1 tls ATOMIC_OP_ALIAS(atomic_cas_ptr,_atomic_cas_64) 76 1.7.12.1 tls ATOMIC_OP_ALIAS(atomic_cas_ptr_ni,_atomic_cas_64) 77 1.7.12.1 tls 78 1.7.12.1 tls STRONG_ALIAS(_atomic_cas_ulong,_atomic_cas_64) 79 1.7.12.1 tls STRONG_ALIAS(_atomic_cas_ulong_ni,_atomic_cas_64) 80 1.7.12.1 tls 81 1.7.12.1 tls STRONG_ALIAS(_atomic_cas_ptr,_atomic_cas_64) 82 1.7.12.1 tls STRONG_ALIAS(_atomic_cas_ptr_ni,_atomic_cas_64) 83 1.7.12.1 tls #else 84 1.7.12.1 tls ATOMIC_OP_ALIAS(atomic_cas_ulong,_atomic_cas_32) 85 1.3 ad ATOMIC_OP_ALIAS(atomic_cas_ulong_ni,_atomic_cas_32) 86 1.7.12.1 tls 87 1.7.12.1 tls ATOMIC_OP_ALIAS(atomic_cas_ptr,_atomic_cas_32) 88 1.3 ad ATOMIC_OP_ALIAS(atomic_cas_ptr_ni,_atomic_cas_32) 89 1.7.12.1 tls 90 1.7.12.1 tls STRONG_ALIAS(_atomic_cas_ulong,_atomic_cas_32) 91 1.7.12.1 tls STRONG_ALIAS(_atomic_cas_ulong_ni,_atomic_cas_32) 92 1.7.12.1 tls 93 1.7.12.1 tls STRONG_ALIAS(_atomic_cas_ptr,_atomic_cas_32) 94 1.3 ad STRONG_ALIAS(_atomic_cas_ptr_ni,_atomic_cas_32) 95 1.3 ad #endif 96
Indexes created Mon Oct 27 20:09:55 GMT 2025