/* $NetBSD: atomic_swap_32.S,v 1.1 2014/09/03 19:34:25 matt Exp $ */ /*- * Copyright (c) 2007,2012 The NetBSD Foundation, Inc. * All rights reserved. * * This code is derived from software contributed to The NetBSD Foundation * by Jason R. Thorpe and Matt Thomas. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE * POSSIBILITY OF SUCH DAMAGE. */ #include "atomic_op_asm.h" ENTRY_NP(_atomic_swap_32) 1: l.lwa r11, 0(r3) l.swa 0(r3), r4 l.bnf 1b l.nop 2: l.jr lr l.nop END(_atomic_swap_32) ATOMIC_OP_ALIAS(atomic_swap_32,_atomic_swap_32) ATOMIC_OP_ALIAS(atomic_swap_uint,_atomic_swap_32) ATOMIC_OP_ALIAS(atomic_swap_ulong,_atomic_swap_32) ATOMIC_OP_ALIAS(atomic_swap_ptr,_atomic_swap_32) CRT_ALIAS(__sync_lock_test_and_set_4,_atomic_swap_32) CRT_ALIAS(atomic_exchange_4,___atomic_swap_32) STRONG_ALIAS(_atomic_swap_uint,_atomic_swap_32) STRONG_ALIAS(_atomic_swap_ulong,_atomic_swap_32) STRONG_ALIAS(_atomic_swap_ptr,_atomic_swap_32) #if (!defined(_KERNEL) || defined(_RUMPKERNEL)) && !defined(_STANDALONE) ENTRY_NP(__sync_lock_release_4) l.sw 0(r3), r0 l.jr lr l.nop END(__sync_lock_release_4) #endif |