FreeBSD/Linux Kernel Cross Reference
sys/sys/cpu_data.h

     /*      $NetBSD: cpu_data.h,v 1.3 2004/10/26 00:14:46 yamt Exp $        */
     
     /*-
      * Copyright (c) 2004 The NetBSD Foundation, Inc.
      * All rights reserved.
      *
      * Redistribution and use in source and binary forms, with or without
      * modification, are permitted provided that the following conditions
      * are met:
     * 1. Redistributions of source code must retain the above copyright
     *    notice, this list of conditions and the following disclaimer.
     * 2. Redistributions in binary form must reproduce the above copyright
     *    notice, this list of conditions and the following disclaimer in the
     *    documentation and/or other materials provided with the distribution.
     * 3. All advertising materials mentioning features or use of this software
     *    must display the following acknowledgement:
     *        This product includes software developed by the NetBSD
     *        Foundation, Inc. and its contributors.
     * 4. Neither the name of The NetBSD Foundation nor the names of its
     *    contributors may be used to endorse or promote products derived
     *    from this software without specific prior written permission.
     *
     * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
     * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
     * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     * POSSIBILITY OF SUCH DAMAGE.
     */
    
    /*
     * based on arch/i386/include/cpu.h:
     *      NetBSD: cpu.h,v 1.115 2004/05/16 12:32:53 yamt Exp
     */
    
    #ifndef _CPU_DATA_H_
    #define _CPU_DATA_H_
    
    #if defined(_KERNEL_OPT)
    #include "opt_multiprocessor.h"
    #endif
    
    struct lwp;
    #include <sys/sched.h>  /* for schedstate_percpu */
    
    /*
     * MI per-cpu data
     *
     * this structure is intended to be included in MD cpu_info structure.
     *      struct cpu_info {
     *              struct cpu_data ci_data;
     *      }
     *
     * note that cpu_data is not expected to contain much data,
     * as cpu_info is size-limited on most ports.
     */
    
    struct cpu_data {
            struct schedstate_percpu cpu_schedstate; /* scheduler state */
    
    #if defined(MULTIPROCESSOR)
            int cpu_biglock_count;
    #endif /* defined(MULTIPROCESSOR) */
            /*
             * for LOCKDEBUG
             */
    #if defined(DIAGNOSTIC) || defined(LOCKDEBUG)
            u_long cpu_spin_locks;          /* # of spin locks held */
            u_long cpu_simple_locks;        /* # of simple locks held */
    #endif /* defined(DIAGNOSTIC) || defined(LOCKDEBUG) */
    };
    
    /* compat definitions */
    #define ci_schedstate   ci_data.cpu_schedstate
    #if defined(DIAGNOSTIC) || defined(LOCKDEBUG)
    #define ci_spin_locks   ci_data.cpu_spin_locks
    #define ci_simple_locks ci_data.cpu_simple_locks
    #endif /* defined(DIAGNOSTIC) || defined(LOCKDEBUG) */
    
    #endif /* _CPU_DATA_H_ */

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