1*b6cbf720SGianluca Guida/* $NetBSD: atomic_cas.S,v 1.5 2008/05/25 15:56:11 chs Exp $ */ 2*b6cbf720SGianluca Guida 3*b6cbf720SGianluca Guida/*- 4*b6cbf720SGianluca Guida * Copyright (c) 2007, 2008 The NetBSD Foundation, Inc. 5*b6cbf720SGianluca Guida * All rights reserved. 6*b6cbf720SGianluca Guida * 7*b6cbf720SGianluca Guida * This code is derived from software contributed to The NetBSD Foundation 8*b6cbf720SGianluca Guida * by Jason R. Thorpe. 9*b6cbf720SGianluca Guida * 10*b6cbf720SGianluca Guida * Redistribution and use in source and binary forms, with or without 11*b6cbf720SGianluca Guida * modification, are permitted provided that the following conditions 12*b6cbf720SGianluca Guida * are met: 13*b6cbf720SGianluca Guida * 1. Redistributions of source code must retain the above copyright 14*b6cbf720SGianluca Guida * notice, this list of conditions and the following disclaimer. 15*b6cbf720SGianluca Guida * 2. Redistributions in binary form must reproduce the above copyright 16*b6cbf720SGianluca Guida * notice, this list of conditions and the following disclaimer in the 17*b6cbf720SGianluca Guida * documentation and/or other materials provided with the distribution. 18*b6cbf720SGianluca Guida * 19*b6cbf720SGianluca Guida * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 20*b6cbf720SGianluca Guida * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 21*b6cbf720SGianluca Guida * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 22*b6cbf720SGianluca Guida * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 23*b6cbf720SGianluca Guida * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 24*b6cbf720SGianluca Guida * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 25*b6cbf720SGianluca Guida * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 26*b6cbf720SGianluca Guida * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 27*b6cbf720SGianluca Guida * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 28*b6cbf720SGianluca Guida * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 29*b6cbf720SGianluca Guida * POSSIBILITY OF SUCH DAMAGE. 30*b6cbf720SGianluca Guida */ 31*b6cbf720SGianluca Guida 32*b6cbf720SGianluca Guida#include "atomic_op_asm.h" 33*b6cbf720SGianluca Guida 34*b6cbf720SGianluca Guida .text 35*b6cbf720SGianluca Guida 36*b6cbf720SGianluca GuidaLEAF(_atomic_cas_32, 3) 37*b6cbf720SGianluca Guida1: mov a2, t2 38*b6cbf720SGianluca Guida ldl_l v0, 0(a0) 39*b6cbf720SGianluca Guida cmpeq v0, a1, t1 40*b6cbf720SGianluca Guida beq t1, 2f 41*b6cbf720SGianluca Guida stl_c t2, 0(a0) 42*b6cbf720SGianluca Guida beq t2, 3f 43*b6cbf720SGianluca Guida2: RET 44*b6cbf720SGianluca Guida3: br 1b 45*b6cbf720SGianluca Guida END(_atomic_cas_32) 46*b6cbf720SGianluca Guida 47*b6cbf720SGianluca GuidaATOMIC_OP_ALIAS(atomic_cas_32,_atomic_cas_32) 48*b6cbf720SGianluca GuidaATOMIC_OP_ALIAS(atomic_cas_uint,_atomic_cas_32) 49*b6cbf720SGianluca GuidaSTRONG_ALIAS(_atomic_cas_uint,_atomic_cas_32) 50*b6cbf720SGianluca Guida 51*b6cbf720SGianluca GuidaATOMIC_OP_ALIAS(atomic_cas_32_ni,_atomic_cas_32) 52*b6cbf720SGianluca GuidaSTRONG_ALIAS(_atomic_cas_32_ni,_atomic_cas_32) 53*b6cbf720SGianluca GuidaATOMIC_OP_ALIAS(atomic_cas_uint_ni,_atomic_cas_32) 54*b6cbf720SGianluca GuidaSTRONG_ALIAS(_atomic_cas_uint_ni,_atomic_cas_32) 55*b6cbf720SGianluca Guida 56*b6cbf720SGianluca GuidaLEAF(_atomic_cas_64, 3) 57*b6cbf720SGianluca Guida1: mov a2, t2 58*b6cbf720SGianluca Guida ldq_l v0, 0(a0) 59*b6cbf720SGianluca Guida cmpeq v0, a1, t1 60*b6cbf720SGianluca Guida beq t1, 2f 61*b6cbf720SGianluca Guida stq_c t2, 0(a0) 62*b6cbf720SGianluca Guida beq t2, 3f 63*b6cbf720SGianluca Guida2: RET 64*b6cbf720SGianluca Guida3: br 1b 65*b6cbf720SGianluca Guida END(_atomic_cas_64) 66*b6cbf720SGianluca Guida 67*b6cbf720SGianluca GuidaATOMIC_OP_ALIAS(atomic_cas_64,_atomic_cas_64) 68*b6cbf720SGianluca GuidaATOMIC_OP_ALIAS(atomic_cas_ulong,_atomic_cas_64) 69*b6cbf720SGianluca GuidaSTRONG_ALIAS(_atomic_cas_ulong,_atomic_cas_64) 70*b6cbf720SGianluca GuidaATOMIC_OP_ALIAS(atomic_cas_ptr,_atomic_cas_64) 71*b6cbf720SGianluca GuidaSTRONG_ALIAS(_atomic_cas_ptr,_atomic_cas_64) 72*b6cbf720SGianluca Guida 73*b6cbf720SGianluca GuidaATOMIC_OP_ALIAS(atomic_cas_64_ni,_atomic_cas_64) 74*b6cbf720SGianluca GuidaSTRONG_ALIAS(_atomic_cas_64_ni,_atomic_cas_64) 75*b6cbf720SGianluca GuidaATOMIC_OP_ALIAS(atomic_cas_ulong_ni,_atomic_cas_64) 76*b6cbf720SGianluca GuidaSTRONG_ALIAS(_atomic_cas_ulong_ni,_atomic_cas_64) 77*b6cbf720SGianluca GuidaATOMIC_OP_ALIAS(atomic_cas_ptr_ni,_atomic_cas_64) 78*b6cbf720SGianluca GuidaSTRONG_ALIAS(_atomic_cas_ptr_ni,_atomic_cas_64) 79