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cpu_data.h
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cpu_data.h
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/* $NetBSD: cpu_data.h,v 1.7 2007/02/09 21:55:37 ad 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 _SYS_CPU_DATA_H_
#define _SYS_CPU_DATA_H_
#if defined(_KERNEL_OPT)
#include "opt_multiprocessor.h"
#endif
struct callout;
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 */
struct callout * volatile cpu_callout; /* MP: a callout running */
#if defined(MULTIPROCESSOR)
u_int cpu_biglock_count;
struct lwp *cpu_biglock_wanted;
#endif /* defined(MULTIPROCESSOR) */
/* For LOCKDEBUG. */
u_long cpu_spin_locks; /* # of spinlockmgr locks */
u_long cpu_simple_locks; /* # of simple locks held */
void *cpu_lockstat; /* lockstat private tables */
u_int cpu_spin_locks2; /* # of spin locks held XXX */
u_int cpu_lkdebug_recurse; /* LOCKDEBUG recursion */
};
/* compat definitions */
#define ci_schedstate ci_data.cpu_schedstate
#define ci_biglock_count ci_data.cpu_biglock_count
#define ci_biglock_wanted ci_data.cpu_biglock_wanted
#define ci_spin_locks ci_data.cpu_spin_locks
#define ci_simple_locks ci_data.cpu_simple_locks
#define ci_lockstat ci_data.cpu_lockstat
#define ci_spin_locks2 ci_data.cpu_spin_locks2
#define ci_lkdebug_recurse ci_data.cpu_lkdebug_recurse
void mi_cpu_init(struct cpu_info *ci);
#endif /* _SYS_CPU_DATA_H_ */