master
1/* $NetBSD: kcpuset.h,v 1.11 2014/05/19 20:39:23 rmind Exp $ */
2
3/*-
4 * Copyright (c) 2008, 2011 The NetBSD Foundation, Inc.
5 * All rights reserved.
6 *
7 * This code is derived from software contributed to The NetBSD Foundation
8 * by Christos Zoulas and Mindaugas Rasiukevicius.
9 *
10 * Redistribution and use in source and binary forms, with or without
11 * modification, are permitted provided that the following conditions
12 * are met:
13 * 1. Redistributions of source code must retain the above copyright
14 * notice, this list of conditions and the following disclaimer.
15 * 2. Redistributions in binary form must reproduce the above copyright
16 * notice, this list of conditions and the following disclaimer in the
17 * documentation and/or other materials provided with the distribution.
18 *
19 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
20 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
21 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
22 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
23 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
24 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
25 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
26 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
27 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
28 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
29 * POSSIBILITY OF SUCH DAMAGE.
30 */
31
32#ifndef _SYS_KCPUSET_H_
33#define _SYS_KCPUSET_H_
34
35struct kcpuset;
36typedef struct kcpuset kcpuset_t;
37
38#ifdef _KERNEL
39
40#include <sys/sched.h>
41
42void kcpuset_sysinit(void);
43
44void kcpuset_create(kcpuset_t **, bool);
45void kcpuset_clone(kcpuset_t **, const kcpuset_t *);
46void kcpuset_destroy(kcpuset_t *);
47void kcpuset_copy(kcpuset_t *, const kcpuset_t *);
48
49void kcpuset_use(kcpuset_t *);
50void kcpuset_unuse(kcpuset_t *, kcpuset_t **);
51
52int kcpuset_copyin(const cpuset_t *, kcpuset_t *, size_t);
53int kcpuset_copyout(kcpuset_t *, cpuset_t *, size_t);
54
55void kcpuset_zero(kcpuset_t *);
56void kcpuset_fill(kcpuset_t *);
57void kcpuset_set(kcpuset_t *, cpuid_t);
58void kcpuset_clear(kcpuset_t *, cpuid_t);
59
60bool kcpuset_isset(const kcpuset_t *, cpuid_t);
61bool kcpuset_isotherset(const kcpuset_t *, cpuid_t);
62bool kcpuset_iszero(const kcpuset_t *);
63bool kcpuset_intersecting_p(const kcpuset_t *, const kcpuset_t *);
64bool kcpuset_match(const kcpuset_t *, const kcpuset_t *);
65void kcpuset_intersect(kcpuset_t *, const kcpuset_t *);
66void kcpuset_merge(kcpuset_t *, const kcpuset_t *);
67void kcpuset_remove(kcpuset_t *, const kcpuset_t *);
68int kcpuset_countset(const kcpuset_t *);
69
70cpuid_t kcpuset_ffs(const kcpuset_t *);
71cpuid_t kcpuset_ffs_intersecting(const kcpuset_t *, const kcpuset_t *);
72
73void kcpuset_atomic_set(kcpuset_t *, cpuid_t);
74void kcpuset_atomic_clear(kcpuset_t *, cpuid_t);
75
76void kcpuset_atomicly_zero(kcpuset_t *);
77void kcpuset_atomicly_intersect(kcpuset_t *, const kcpuset_t *);
78void kcpuset_atomicly_merge(kcpuset_t *, const kcpuset_t *);
79void kcpuset_atomicly_remove(kcpuset_t *, const kcpuset_t *);
80
81void kcpuset_export_u32(const kcpuset_t *, uint32_t *, size_t);
82
83#endif
84
85#endif /* _SYS_KCPUSET_H_ */