atomic_inc.S revision 1.1.2.1
1 /* $NetBSD: atomic_inc.S,v 1.1.2.1 2009/09/05 03:07:07 matt Exp $ */ 2 3 /*- 4 * Copyright (c) 2008 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 16 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 17 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 18 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 19 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 20 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 21 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 22 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 23 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 24 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 25 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 26 * POSSIBILITY OF SUCH DAMAGE. 27 */ 28 29 #include <sys/cdefs.h> 30 #include <machine/asm.h> 31 #include "atomic_op_asm.h" 32 33 RCSID("$NetBSD: atomic_inc.S,v 1.1.2.1 2009/09/05 03:07:07 matt Exp $") 34 35 .text 36 .set noat 37 .set noreorder 38 .set nomacro 39 40 LEAF(_atomic_inc_32) 41 1: INT_LL t0, 0(a0) 42 nop 43 INT_ADDU t0, 1 44 INT_SC t0, 0(a0) 45 beq t0, zero, 1b 46 nop 47 j ra 48 nop 49 END(_atomic_inc_32) 50 ATOMIC_OP_ALIAS(atomic_inc_32, _atomic_inc_32) 51 52 LEAF(_atomic_inc_32_nv) 53 1: INT_LL v0, 0(a0) 54 nop 55 INT_ADDU v0, 1 56 move t0, v0 57 INT_SC t0, 0(a0) 58 beq t0, zero, 1b 59 nop 60 j ra 61 nop 62 END(_atomic_inc_32_nv) 63 ATOMIC_OP_ALIAS(atomic_inc_32_nv, _atomic_inc_32_nv) 64 65 #if !defined(__mips_o32) 66 LEAF(_atomic_inc_64) 67 1: REG_LL t0, 0(a0) 68 nop 69 REG_ADDU t0, 1 70 REG_SC t0, 0(a0) 71 beq t0, zero, 1b 72 nop 73 j ra 74 nop 75 END(_atomic_inc_64) 76 ATOMIC_OP_ALIAS(atomic_inc_64, _atomic_inc_64) 77 78 LEAF(_atomic_inc_64_nv) 79 1: REG_LL v0, 0(a0) 80 nop 81 REG_ADDU v0, 1 82 move t0, v0 83 REG_SC t0, 0(a0) 84 beq t0, zero, 1b 85 nop 86 j ra 87 nop 88 END(_atomic_inc_64_nv) 89 ATOMIC_OP_ALIAS(atomic_inc_64_nv, _atomic_inc_64_nv) 90 #endif 91 92 #ifdef _LP64 93 STRONG_ALIAS(_atomic_inc_ptr, _atomic_inc_64) 94 STRONG_ALIAS(_atomic_inc_ptr_nv, _atomic_inc_64_nv) 95 STRONG_ALIAS(_atomic_inc_ulong, _atomic_inc_64) 96 STRONG_ALIAS(_atomic_inc_ulong_nv, _atomic_inc_64_nv) 97 #else 98 STRONG_ALIAS(_atomic_inc_ptr, _atomic_inc_32) 99 STRONG_ALIAS(_atomic_inc_ptr_nv, _atomic_inc_32_nv) 100 STRONG_ALIAS(_atomic_inc_ulong, _atomic_inc_32) 101 STRONG_ALIAS(_atomic_inc_ulong_nv, _atomic_inc_32_nv) 102 #endif 103 STRONG_ALIAS(_atomic_inc_uint, _atomic_inc_32) 104 STRONG_ALIAS(_atomic_inc_uint_nv, _atomic_inc_32_nv) 105 106 ATOMIC_OP_ALIAS(atomic_inc_ptr, _atomic_inc_ptr) 107 ATOMIC_OP_ALIAS(atomic_inc_ptr_nv, _atomic_inc_ptr_nv) 108 ATOMIC_OP_ALIAS(atomic_inc_uint, _atomic_inc_uint) 109 ATOMIC_OP_ALIAS(atomic_inc_uint_nv, _atomic_inc_uint_nv) 110 ATOMIC_OP_ALIAS(atomic_inc_ulong, _atomic_inc_ulong) 111 ATOMIC_OP_ALIAS(atomic_inc_ulong_nv, _atomic_inc_ulong_nv) 112
Indexes created Thu Oct 02 01:09:59 GMT 2025