1/* $NetBSD: atomic_inc.S,v 1.5 2022/04/06 22:47:55 riastradh Exp $ */ 2 3/*- 4 * Copyright (c) 2007 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to The NetBSD Foundation 8 * by Jason R. Thorpe. 9 * 10 * Redistribution and use in source and binary forms, with or without 11 * modification, are permitted provided that the following conditions 12 * are met: 13 * 1. Redistributions of source code must retain the above copyright 14 * notice, this list of conditions and the following disclaimer. 15 * 2. Redistributions in binary form must reproduce the above copyright 16 * notice, this list of conditions and the following disclaimer in the 17 * documentation and/or other materials provided with the distribution. 18 * 19 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 20 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 21 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 22 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 23 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 24 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 25 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 26 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 27 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 28 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 29 * POSSIBILITY OF SUCH DAMAGE. 30 */ 31 32#include "atomic_op_asm.h" 33 34 .text 35 36LEAF(_atomic_inc_32, 1) 371: ldl_l t1, 0(a0) 38 addl t1, 1, t2 39 stl_c t2, 0(a0) 40 beq t2, 2f 41 RET 422: br 1b 43 END(_atomic_inc_32) 44ATOMIC_OP_ALIAS(atomic_inc_32,_atomic_inc_32) 45ATOMIC_OP_ALIAS(atomic_inc_uint,_atomic_inc_32) 46STRONG_ALIAS(_atomic_inc_uint,_atomic_inc_32) 47 48LEAF(_atomic_inc_32_nv, 1) 491: ldl_l t1, 0(a0) 50 addl t1, 1, t2 51 mov t2, v0 52 stl_c t2, 0(a0) 53 beq t2, 2f 54 RET 552: br 1b 56 END(_atomic_inc_32_nv) 57ATOMIC_OP_ALIAS(atomic_inc_32_nv,_atomic_inc_32_nv) 58ATOMIC_OP_ALIAS(atomic_inc_uint_nv,_atomic_inc_32_nv) 59STRONG_ALIAS(_atomic_inc_uint_nv,_atomic_inc_32_nv) 60 61LEAF(_atomic_inc_64, 1) 621: ldq_l t1, 0(a0) 63 addq t1, 1, t2 64 stq_c t2, 0(a0) 65 beq t2, 2f 66 RET 672: br 1b 68 END(_atomic_inc_64) 69ATOMIC_OP_ALIAS(atomic_inc_64,_atomic_inc_64) 70ATOMIC_OP_ALIAS(atomic_inc_ulong,_atomic_inc_64) 71STRONG_ALIAS(_atomic_inc_ulong,_atomic_inc_64) 72ATOMIC_OP_ALIAS(atomic_inc_ptr,_atomic_inc_64) 73STRONG_ALIAS(_atomic_inc_ptr,_atomic_inc_64) 74 75LEAF(_atomic_inc_64_nv, 1) 761: ldq_l t1, 0(a0) 77 addq t1, 1, t2 78 mov t2, v0 79 stq_c t2, 0(a0) 80 beq t2, 2f 81 RET 822: br 1b 83 END(_atomic_inc_64_nv) 84ATOMIC_OP_ALIAS(atomic_inc_64_nv,_atomic_inc_64_nv) 85ATOMIC_OP_ALIAS(atomic_inc_ulong_nv,_atomic_inc_64_nv) 86STRONG_ALIAS(_atomic_inc_ulong_nv,_atomic_inc_64_nv) 87ATOMIC_OP_ALIAS(atomic_inc_ptr_nv,_atomic_inc_64_nv) 88STRONG_ALIAS(_atomic_inc_ptr_nv,_atomic_inc_64_nv) 89