sys/arch/sparc64/include/cpuset.h

   1 /*      $NetBSD: cpuset.h,v 1.7 2008/02/28 11:50:40 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_ */