1/* $FreeBSD$ */
2/* From: NetBSD: cpu.h,v 1.18 1997/09/23 23:17:49 mjacob Exp */
3
4/*-
5 * Copyright (c) 1988 University of Utah.
6 * Copyright (c) 1982, 1990, 1993
7 *	The Regents of the University of California.  All rights reserved.
8 *
9 * This code is derived from software contributed to Berkeley by
10 * the Systems Programming Group of the University of Utah Computer
11 * Science Department.
12 *
13 * Redistribution and use in source and binary forms, with or without
14 * modification, are permitted provided that the following conditions
15 * are met:
16 * 1. Redistributions of source code must retain the above copyright
17 *    notice, this list of conditions and the following disclaimer.
18 * 2. Redistributions in binary form must reproduce the above copyright
19 *    notice, this list of conditions and the following disclaimer in the
20 *    documentation and/or other materials provided with the distribution.
21 * 4. Neither the name of the University nor the names of its contributors
22 *    may be used to endorse or promote products derived from this software
23 *    without specific prior written permission.
24 *
25 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
26 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
27 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
28 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
29 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
30 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
31 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
32 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
33 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
34 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
35 * SUCH DAMAGE.
36 *
37 * from: Utah $Hdr: cpu.h 1.16 91/03/25$
38 *
39 *	@(#)cpu.h	8.4 (Berkeley) 1/5/94
40 */
41
42#ifndef _MACHINE_CPU_H_
43#define _MACHINE_CPU_H_
44
45#include <machine/frame.h>
46
47#define	TRAPF_PC(tf)		((tf)->tf_special.iip)
48#define	TRAPF_CPL(tf)		((tf)->tf_special.psr & IA64_PSR_CPL)
49#define	TRAPF_USERMODE(tf)	(TRAPF_CPL(tf) != IA64_PSR_CPL_KERN)
50
51#ifdef _KERNEL
52
53#ifdef GPROF
54extern char btext[];
55extern char etext[];
56#endif
57
58/*
59 * Return contents of in-cpu fast counter as a sort of "bogo-time"
60 * for non-critical timing.
61 */
62#define	get_cyclecount		ia64_get_itc
63
64/* Used by signaling code. */
65#define	cpu_getstack(td)	((td)->td_frame->tf_special.sp)
66#define	cpu_spinwait()		/* nothing */
67
68void	cpu_halt(void);
69void	cpu_reset(void);
70void	fork_trampoline(void);				/* MAGIC */
71void	swi_vm(void *);
72
73#endif /* _KERNEL */
74
75#endif /* _MACHINE_CPU_H_ */
76