-
Notifications
You must be signed in to change notification settings - Fork 24
/
cpu.h
78 lines (64 loc) · 2.4 KB
/
cpu.h
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
/* $NetBSD: cpu.h,v 1.15 2008/01/15 14:50:07 joerg Exp $ */
/*-
* Copyright (c) 2007 YAMAMOTO Takashi,
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#ifndef _SYS_CPU_H_
#define _SYS_CPU_H_
#include <machine/cpu.h>
#include <sys/lwp.h>
struct cpu_info;
#ifndef cpu_idle
void cpu_idle(void);
#endif
/*
* cpu_need_resched() must always be called with the target CPU
* locked (via spc_lock() or another route), unless called locally.
* If called locally, the caller need only be at IPL_SCHED.
*/
#ifndef cpu_need_resched
void cpu_need_resched(struct cpu_info *, int);
#endif
/* flags for cpu_need_resched */
#define RESCHED_IMMED 1
#ifndef CPU_INFO_ITERATOR
#define CPU_INFO_ITERATOR int
#define CPU_INFO_FOREACH(cii, ci) \
(void)cii, ci = curcpu(); ci != NULL; ci = NULL
#endif
#ifdef __HAVE_MD_CPU_OFFLINE
void cpu_offline_md(void);
#endif
lwp_t *cpu_switchto(lwp_t *, lwp_t *, bool);
struct cpu_info *cpu_lookup(cpuid_t);
struct cpu_info *cpu_lookup_byindex(u_int);
int cpu_setonline(struct cpu_info *, bool);
bool cpu_intr_p(void);
extern kmutex_t cpu_lock;
static inline u_int
cpu_index(struct cpu_info *ci)
{
return ci->ci_index;
}
#endif /* !_SYS_CPU_H_ */