xref: /freebsd/sys/arm64/include/smp.h (revision a9056bbb93afcfe9d227c3710bc83d876cefd701)
1 /*-
2  * Copyright (c) 2014 Andrew Turner <andrew@FreeBSD.org>
3  * Copyright (c) 2015 The FreeBSD Foundation
4  * All rights reserved.
5  *
6  * This software was developed by Andrew Turner under sponsorship from
7  * the FreeBSD Foundation.
8  *
9  * Redistribution and use in source and binary forms, with or without
10  * modification, are permitted provided that the following conditions
11  * are met:
12  * 1. Redistributions of source code must retain the above copyright
13  *    notice, this list of conditions and the following disclaimer.
14  * 2. Redistributions in binary form must reproduce the above copyright
15  *    notice, this list of conditions and the following disclaimer in the
16  *    documentation and/or other materials provided with the distribution.
17  *
18  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
19  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
20  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
21  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
22  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
23  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
24  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
25  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
26  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
27  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
28  * SUCH DAMAGE.
29  *
30  * $FreeBSD$
31  */
32 
33 #ifndef	_MACHINE_SMP_H_
34 #define	_MACHINE_SMP_H_
35 
36 #include <machine/pcb.h>
37 
38 enum {
39 	IPI_AST,
40 	IPI_PREEMPT,
41 	IPI_RENDEZVOUS,
42 	IPI_STOP,
43 	IPI_STOP_HARD,
44 	IPI_HARDCLOCK,
45 	INTR_IPI_COUNT,
46 };
47 
48 void	ipi_all_but_self(u_int ipi);
49 void	ipi_cpu(int cpu, u_int ipi);
50 void	ipi_selected(cpuset_t cpus, u_int ipi);
51 
52 /* global data in mp_machdep.c */
53 extern struct pcb               stoppcbs[];
54 
55 #endif /* !_MACHINE_SMP_H_ */
56