NetBSD/sys/arch/arm26/include/cpu.h

/* $NetBSD: cpu.h,v 1.3 2000/08/25 16:43:47 bjh21 Exp $ */
/*-
 * Copyright (c) 1998 Ben Harris
 * 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. The name of the author may not be used to endorse or promote products
 *    derived from this software without specific prior written permission.
 * 
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 AUTHOR 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.
 */
/* This file is part of NetBSD/arm26 -- a port of NetBSD to ARM2/3 machines. */

#ifndef _ARM26_CPU_H
#define _ARM26_CPU_H

#include <machine/frame.h>

#if defined(_KERNEL) && !defined(_LKM)
#include "opt_lockdebug.h"
#endif

#include <sys/sched.h>
struct cpu_info {
	struct schedstate_percpu ci_schedstate; /* scheduler state */
#if defined(DIAGNOSTIC) || defined(LOCKDEBUG)
	u_long ci_spin_locks;		/* # of spin locks held */
	u_long ci_simple_locks;		/* # of simple locks held */
#endif
};

#ifdef _KERNEL
extern struct cpu_info cpu_info_store;

#define	curcpu()	(&cpu_info_store)
#define cpu_number()	(0)
#endif

#define INSN_SIZE 4

#ifdef _KERNEL
/* ASTs etc */

#include <sys/proc.h>
extern int want_resched, astpending;

#define setsoftast()							\
do {									\
	astpending = 1;							\
} while (/* CONSTCOND */ 0)

#define need_resched(ci)						\
do {									\
	want_resched = 1;						\
	setsoftast();							\
} while (/* CONSTCOND */ 0)

#define need_proftick(p)						\
do {									\
	(p)->p_flag |= P_OWEUPC;					\
	setsoftast();							\
} while (/* CONSTCOND */ 0)

#define signotify(p) setsoftast()

#endif /* _KERNEL */

#endif