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6e64bc845f
osreldate.h and sys/param.h were manually adjusted to not __FreeBSD_version since it will be defined by the compiler.
70 lines
No EOL
2.7 KiB
C
Vendored
70 lines
No EOL
2.7 KiB
C
Vendored
/*-
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* Copyright (c) 2021 The FreeBSD Foundation
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*
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* This software were developed by Konstantin Belousov <kib@FreeBSD.org>
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* under sponsorship from the FreeBSD Foundation.
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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 AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#ifndef __SYS_MEMBARRIER_H__
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#define __SYS_MEMBARRIER_H__
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#include <sys/cdefs.h>
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/*
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* The enum membarrier_cmd values are bits. The MEMBARRIER_CMD_QUERY
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* command returns a bitset indicating which commands are supported.
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* Also the value of MEMBARRIER_CMD_QUERY is zero, so it is
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* effectively not returned by the query.
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*/
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enum membarrier_cmd {
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MEMBARRIER_CMD_QUERY = 0x00000000,
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MEMBARRIER_CMD_GLOBAL = 0x00000001,
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MEMBARRIER_CMD_SHARED = MEMBARRIER_CMD_GLOBAL,
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MEMBARRIER_CMD_GLOBAL_EXPEDITED = 0x00000002,
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MEMBARRIER_CMD_REGISTER_GLOBAL_EXPEDITED = 0x00000004,
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MEMBARRIER_CMD_PRIVATE_EXPEDITED = 0x00000008,
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MEMBARRIER_CMD_REGISTER_PRIVATE_EXPEDITED = 0x00000010,
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MEMBARRIER_CMD_PRIVATE_EXPEDITED_SYNC_CORE = 0x00000020,
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MEMBARRIER_CMD_REGISTER_PRIVATE_EXPEDITED_SYNC_CORE = 0x00000040,
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/*
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* RSEQ constants are defined for source compatibility but are
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* not yet supported, MEMBARRIER_CMD_QUERY does not return
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* them in the mask.
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*/
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MEMBARRIER_CMD_PRIVATE_EXPEDITED_RSEQ = 0x00000080,
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MEMBARRIER_CMD_REGISTER_PRIVATE_EXPEDITED_RSEQ = 0x00000100,
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};
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enum membarrier_cmd_flag {
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MEMBARRIER_CMD_FLAG_CPU = 0x00000001,
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};
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#ifndef _KERNEL
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__BEGIN_DECLS
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int membarrier(int, unsigned, int);
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__END_DECLS
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#endif /* _KERNEL */
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#endif /* __SYS_MEMBARRIER_H__ */ |