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      1 /*	$NetBSD: cpuset.h,v 1.8 2008/04/28 20:23:37 martin Exp $ */
      2 
      3 /*-
      4  * Copyright (c) 2004 The NetBSD Foundation, Inc.
      5  * All rights reserved.
      6  *
      7  * Redistribution and use in source and binary forms, with or without
      8  * modification, are permitted provided that the following conditions
      9  * are met:
     10  * 1. Redistributions of source code must retain the above copyright
     11  *    notice, this list of conditions and the following disclaimer.
     12  * 2. Redistributions in binary form must reproduce the above copyright
     13  *    notice, this list of conditions and the following disclaimer in the
     14  *    documentation and/or other materials provided with the distribution.
     15  *
     16  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
     17  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     18  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     19  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
     20  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     21  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     22  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     23  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     24  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     25  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     26  * POSSIBILITY OF SUCH DAMAGE.
     27  */
     28 
     29 #ifndef _SPARC64_CPUSET_H_
     30 #define	_SPARC64_CPUSET_H_
     31 
     32 #define	CPUSET_MAXNUMCPU	64
     33 typedef	uint64_t sparc64_cpuset_t;
     34 extern volatile sparc64_cpuset_t cpus_active;
     35 
     36 #define	CPUSET_SINGLE(cpu)		((sparc64_cpuset_t)1 << (cpu))
     37 
     38 #define	CPUSET_ADD(set, cpu)		((set) |= CPUSET_SINGLE(cpu))
     39 #define	CPUSET_DEL(set, cpu)		((set) &= ~CPUSET_SINGLE(cpu))
     40 #define	CPUSET_SUB(set1, set2)		((set1) &= ~(set2))
     41 
     42 #define	CPUSET_EXCEPT(set, cpu)		((set) & ~CPUSET_SINGLE(cpu))
     43 
     44 #define	CPUSET_HAS(set, cpu)		((set) & CPUSET_SINGLE(cpu))
     45 #define	CPUSET_NEXT(set)		(ffs(set) - 1)
     46 
     47 #define	CPUSET_EMPTY(set)		((set) == (sparc64_cpuset_t)0)
     48 #define	CPUSET_EQUAL(set1, set2)	((set1) == (set2))
     49 #define	CPUSET_CLEAR(set)		((set) = (sparc64_cpuset_t)0)
     50 #define	CPUSET_ASSIGN(set1, set2)	((set1) = (set2))
     51 
     52 #endif /* _SPARC64_CPUSET_H_ */
     53