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cpuset.h revision 1.1 
      1 /*	$NetBSD: cpuset.h,v 1.1 2004/03/14 18:18:54 chs 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  * 3. All advertising materials mentioning features or use of this software
     16  *    must display the following acknowledgement:
     17  *        This product includes software developed by the NetBSD
     18  *        Foundation, Inc. and its contributors.
     19  * 4. Neither the name of The NetBSD Foundation nor the names of its
     20  *    contributors may be used to endorse or promote products derived
     21  *    from this software without specific prior written permission.
     22  *
     23  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
     24  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     25  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     26  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
     27  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     28  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     29  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     30  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     31  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     32  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     33  * POSSIBILITY OF SUCH DAMAGE.
     34  */
     35 
     36 #ifndef _SPARC64_CPUSET_H_
     37 #define _SPARC64_CPUSET_H_
     38 
     39 typedef	uint64_t cpuset_t;
     40 extern __volatile cpuset_t cpus_active;
     41 
     42 #define	CPUSET_SINGLE(cpu)		((cpuset_t)1 << (cpu))
     43 
     44 #define CPUSET_ADD(set, cpu)		((set) |= CPUSET_SINGLE(cpu))
     45 #define	CPUSET_DEL(set, cpu)		((set) &= ~CPUSET_SINGLE(cpu))
     46 #define	CPUSET_SUB(set1, set2)		((set1) &= ~(set2))
     47 
     48 #define CPUSET_ALL(set)			((set) = (cpuset_t)-1)
     49 #define CPUSET_ALL_BUT(set, cpu)	((set) = ~CPUSET_SINGLE(cpu))
     50 
     51 #define	CPUSET_HAS(set, cpu)		((set) & CPUSET_SINGLE(cpu))
     52 #define CPUSET_NEXT(set)		(ffs(set) - 1)
     53 
     54 #define CPUSET_EMPTY(set)		((set) == (cpuset_t)0)
     55 #define	CPUSET_EQUAL(set1, set2)	((set1) == (set2))
     56 #define	CPUSET_CLEAR(set)		((set) = (cpuset_t)0)
     57 #define	CPUSET_ASSIGN(set1, set2)	((set1) = (set2))
     58 
     59 #endif /* _SPARC64_CPUSET_H_ */
     60