1/* $NetBSD: membar_ops.S,v 1.1 2007/11/30 22:50:44 ad Exp $ */ 2 3/*- 4 * Copyright (c) 2006, 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, and by Andrew Doran. 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 * 3. All advertising materials mentioning features or use of this software 19 * must display the following acknowledgement: 20 * This product includes software developed by the NetBSD 21 * Foundation, Inc. and its contributors. 22 * 4. Neither the name of The NetBSD Foundation nor the names of its 23 * contributors may be used to endorse or promote products derived 24 * from this software without specific prior written permission. 25 * 26 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 27 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 28 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 29 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 30 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 31 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 32 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 33 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 34 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 35 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 36 * POSSIBILITY OF SUCH DAMAGE. 37 */ 38 39#include "atomic_op_asm.h" 40 41#ifdef _KERNEL_OPT 42#include "opt_cputype.h" 43#include "opt_lockdebug.h" 44#include "opt_multiprocessor.h" 45#endif 46 47#if defined(_KERNEL) 48 49#include <machine/cpu.h> 50 51#if MIPS_HAS_LLSC != 0 && defined(MULTIPROCESSOR) 52#define SYNC sync 53#else 54#define SYNC /* nothing */ 55#endif 56 57 .text 58 59LEAF_NOPROFILE(_membar_sync) 60 SYNC 61 j ra 62 nop 63END(_membar_sync) 64 65ATOMIC_OP_ALIAS(membar_sync,_membar_sync) 66ATOMIC_OP_ALIAS(membar_enter,_membar_sync) 67STRONG_ALIAS(_membar_enter,_membar_sync) 68ATOMIC_OP_ALIAS(membar_exit,_membar_sync) 69STRONG_ALIAS(_membar_exit,_membar_sync) 70ATOMIC_OP_ALIAS(membar_producer,_membar_sync) 71STRONG_ALIAS(_membar_producer,_membar_sync) 72ATOMIC_OP_ALIAS(membar_consumer,_membar_sync) 73STRONG_ALIAS(_membar_consumer,_membar_sync) 74 75#else /* _KERNEL */ 76 77#endif /* _KERNEL */ 78