2012-11-15 12:06:41 +01:00
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/* $NetBSD: membar_ops.S,v 1.5 2012/08/03 06:06:44 matt Exp $ */
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2011-02-14 20:36:03 +01:00
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/*-
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* Copyright (c) 2006, 2007 The NetBSD Foundation, Inc.
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* All rights reserved.
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*
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* This code is derived from software contributed to The NetBSD Foundation
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* by Jason R. Thorpe, and by Andrew Doran.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
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* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
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* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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#include "atomic_op_asm.h"
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#if defined(_KERNEL)
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#ifdef _KERNEL_OPT
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#include "opt_cputype.h"
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#include "opt_lockdebug.h"
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#include "opt_multiprocessor.h"
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#endif
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#include <machine/cpu.h>
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#if (MIPS_HAS_LLSC != 0 && defined(MULTIPROCESSOR)) || !defined(__mips_o32)
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#define SYNC sync
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#endif
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#elif !defined(__mips_o32)
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#define SYNC sync
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#endif
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.text
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2012-11-15 12:06:41 +01:00
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.set noreorder
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2011-02-14 20:36:03 +01:00
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LEAF(_membar_sync)
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j ra
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#ifdef SYNC
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2012-11-15 12:06:41 +01:00
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SYNC
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2011-02-14 20:36:03 +01:00
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#else
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2012-11-15 12:06:41 +01:00
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nop
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2011-02-14 20:36:03 +01:00
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#endif
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END(_membar_sync)
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#ifdef _KERNEL
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STRONG_ALIAS(mb_read, _membar_sync)
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STRONG_ALIAS(mb_write, _membar_sync)
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STRONG_ALIAS(mb_memory, _membar_sync)
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#endif
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ATOMIC_OP_ALIAS(membar_sync,_membar_sync)
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ATOMIC_OP_ALIAS(membar_enter,_membar_sync)
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STRONG_ALIAS(_membar_enter,_membar_sync)
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ATOMIC_OP_ALIAS(membar_exit,_membar_sync)
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STRONG_ALIAS(_membar_exit,_membar_sync)
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ATOMIC_OP_ALIAS(membar_producer,_membar_sync)
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STRONG_ALIAS(_membar_producer,_membar_sync)
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ATOMIC_OP_ALIAS(membar_consumer,_membar_sync)
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STRONG_ALIAS(_membar_consumer,_membar_sync)
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