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 35 struct kcpuset; 36 typedef struct kcpuset kcpuset_t; 37 38 #ifdef _KERNEL 39 40 #include <sys/sched.h> 41 42 void kcpuset_sysinit(void); 43 44 void kcpuset_create(kcpuset_t **, bool); 45 void kcpuset_clone(kcpuset_t **, const kcpuset_t *); 46 void kcpuset_destroy(kcpuset_t *); 47 void kcpuset_copy(kcpuset_t *, const kcpuset_t *); 48 49 void kcpuset_use(kcpuset_t *); 50 void kcpuset_unuse(kcpuset_t *, kcpuset_t **); 51 52 int kcpuset_copyin(const cpuset_t *, kcpuset_t *, size_t); 53 int kcpuset_copyout(kcpuset_t *, cpuset_t *, size_t); 54 55 void kcpuset_zero(kcpuset_t *); 56 void kcpuset_fill(kcpuset_t *); 57 void kcpuset_set(kcpuset_t *, cpuid_t); 58 void kcpuset_clear(kcpuset_t *, cpuid_t); 59 60 bool kcpuset_isset(const kcpuset_t *, cpuid_t); 61 bool kcpuset_isotherset(const kcpuset_t *, cpuid_t); 62 bool kcpuset_iszero(const kcpuset_t *); 63 bool kcpuset_intersecting_p(const kcpuset_t *, const kcpuset_t *); 64 bool kcpuset_match(const kcpuset_t *, const kcpuset_t *); 65 void kcpuset_intersect(kcpuset_t *, const kcpuset_t *); 66 void kcpuset_merge(kcpuset_t *, const kcpuset_t *); 67 void kcpuset_remove(kcpuset_t *, const kcpuset_t *); 68 int kcpuset_countset(const kcpuset_t *); 69 70 cpuid_t kcpuset_ffs(const kcpuset_t *); 71 cpuid_t kcpuset_ffs_intersecting(const kcpuset_t *, const kcpuset_t *); 72 73 void kcpuset_atomic_set(kcpuset_t *, cpuid_t); 74 void kcpuset_atomic_clear(kcpuset_t *, cpuid_t); 75 76 void kcpuset_atomicly_zero(kcpuset_t *); 77 void kcpuset_atomicly_intersect(kcpuset_t *, const kcpuset_t *); 78 void kcpuset_atomicly_merge(kcpuset_t *, const kcpuset_t *); 79 void kcpuset_atomicly_remove(kcpuset_t *, const kcpuset_t *); 80 81 void kcpuset_export_u32(const kcpuset_t *, uint32_t *, size_t); 82 83 #endif 84 85 #endif /* _SYS_KCPUSET_H_ */ 86