1/* $NetBSD: atomic_add.S,v 1.5 2015/06/01 23:16:54 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 <machine/asm.h> 30#include "atomic_op_asm.h" 31 32RCSID("$NetBSD: atomic_add.S,v 1.5 2015/06/01 23:16:54 matt Exp $") 33 34 .text 35 .set noreorder 36#ifdef _KERNEL_OPT 37#include "opt_cputype.h" 38#ifndef MIPS3_LOONGSON2F 39 .set noat 40 .set nomacro 41#endif 42#else /* _KERNEL_OPT */ 43 .set noat 44 .set nomacro 45#endif /* _KERNEL_OPT */ 46 47 48LEAF(_atomic_add_32) 49#if defined(_MIPS_ARCH_OCTEONP) || defined(_MIPS_ARCH_OCTEON2) 50 saa a1, (a0) 51#else 521: INT_LL t0, 0(a0) 53 nop 54 INT_ADDU t0, a1 55 INT_SC t0, 0(a0) 56 beq t0, zero, 1b 57 nop 58#endif 59 j ra 60 nop 61END(_atomic_add_32) 62ATOMIC_OP_ALIAS(atomic_add_32, _atomic_add_32) 63 64LEAF(_atomic_add_32_nv) 651: INT_LL v0, 0(a0) 66 nop 67 INT_ADDU v0, a1 68 move t0, v0 69 INT_SC t0, 0(a0) 70 beq t0, zero, 1b 71 nop 72 j ra 73 nop 74END(_atomic_add_32_nv) 75ATOMIC_OP_ALIAS(atomic_add_32_nv, _atomic_add_32_nv) 76 77#if !defined(__mips_o32) 78LEAF(_atomic_add_64) 79#if defined(_MIPS_ARCH_OCTEONP) || defined(_MIPS_ARCH_OCTEON2) 80 saad a1, (a0) 81#else 821: REG_LL t0, 0(a0) 83 nop 84 REG_ADDU t0, a1 85 REG_SC t0, 0(a0) 86 beq t0, zero, 1b 87 nop 88#endif 89 j ra 90 nop 91END(_atomic_add_64) 92ATOMIC_OP_ALIAS(atomic_add_64, _atomic_add_64) 93 94LEAF(_atomic_add_64_nv) 951: REG_LL v0, 0(a0) 96 nop 97 REG_ADDU v0, a1 98 move t0, v0 99 REG_SC t0, 0(a0) 100 beq t0, zero, 1b 101 nop 102 j ra 103 nop 104END(_atomic_add_64_nv) 105ATOMIC_OP_ALIAS(atomic_add_64_nv, _atomic_add_64_nv) 106#endif 107 108#ifdef _LP64 109STRONG_ALIAS(_atomic_add_long, _atomic_add_64) 110STRONG_ALIAS(_atomic_add_long_nv, _atomic_add_64_nv) 111STRONG_ALIAS(_atomic_add_ptr, _atomic_add_64) 112STRONG_ALIAS(_atomic_add_ptr_nv, _atomic_add_64_nv) 113#else 114STRONG_ALIAS(_atomic_add_long, _atomic_add_32) 115STRONG_ALIAS(_atomic_add_long_nv, _atomic_add_32_nv) 116STRONG_ALIAS(_atomic_add_ptr, _atomic_add_32) 117STRONG_ALIAS(_atomic_add_ptr_nv, _atomic_add_32_nv) 118#endif 119STRONG_ALIAS(_atomic_add_int, _atomic_add_32) 120STRONG_ALIAS(_atomic_add_int_nv, _atomic_add_32_nv) 121 122ATOMIC_OP_ALIAS(atomic_add_int, _atomic_add_int) 123ATOMIC_OP_ALIAS(atomic_add_int_nv, _atomic_add_int_nv) 124ATOMIC_OP_ALIAS(atomic_add_ptr, _atomic_add_ptr) 125ATOMIC_OP_ALIAS(atomic_add_ptr_nv, _atomic_add_ptr_nv) 126ATOMIC_OP_ALIAS(atomic_add_long, _atomic_add_long) 127ATOMIC_OP_ALIAS(atomic_add_long_nv, _atomic_add_long_nv) 128