0a6a1f1d05
This brings our tree to NetBSD 7.0, as found on -current on the 10-10-2015. This updates: - LLVM to 3.6.1 - GCC to GCC 5.1 - Replace minix/commands/zdump with usr.bin/zdump - external/bsd/libelf has moved to /external/bsd/elftoolchain/ - Import ctwm - Drop sprintf from libminc Change-Id: I149836ac18e9326be9353958bab9b266efb056f0
79 lines
2.7 KiB
C
79 lines
2.7 KiB
C
/* $NetBSD: ipi.h,v 1.3 2015/01/18 23:16:35 rmind Exp $ */
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/*-
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* Copyright (c) 2014 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 Mindaugas Rasiukevicius.
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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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#ifndef _SYS_IPI_H_
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#define _SYS_IPI_H_
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#if !defined(_KERNEL) && !defined(_KMEMUSER)
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#error "not supposed to be exposed to userland"
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#endif
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typedef void (*ipi_func_t)(void *);
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typedef struct {
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/* Public: function handler and an argument. */
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ipi_func_t func;
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void * arg;
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/* Private (internal) elements. */
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volatile u_int _pending;
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} ipi_msg_t;
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/*
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* Internal constants and implementation hooks.
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*
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* IPI_MAXREG: the maximum number of asynchronous handlers which can
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* be registered on the system (normally, this should not be high).
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*/
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#define IPI_MAXREG 32
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#define IPI_BITW_SHIFT 5
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#define IPI_BITW_MASK (32 - 1)
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#define IPI_BITWORDS (IPI_MAXREG >> IPI_BITW_SHIFT)
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void ipi_sysinit(void);
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void ipi_cpu_handler(void);
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void cpu_ipi(struct cpu_info *);
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/* Public interface: asynchronous IPIs. */
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u_int ipi_register(ipi_func_t, void *);
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void ipi_unregister(u_int);
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void ipi_trigger(u_int, struct cpu_info *);
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void ipi_trigger_multi(u_int, const kcpuset_t *);
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/* Public interface: synchronous IPIs. */
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void ipi_unicast(ipi_msg_t *, struct cpu_info *);
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void ipi_multicast(ipi_msg_t *, const kcpuset_t *);
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void ipi_broadcast(ipi_msg_t *);
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void ipi_wait(ipi_msg_t *);
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#endif
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