cpu.h revision 133084 
1/*-
2 * Copyright (c) 1990 The Regents of the University of California.
3 * All rights reserved.
4 *
5 * This code is derived from software contributed to Berkeley by
6 * William Jolitz.
7 *
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
10 * are met:
11 * 1. Redistributions of source code must retain the above copyright
12 *    notice, this list of conditions and the following disclaimer.
13 * 2. Redistributions in binary form must reproduce the above copyright
14 *    notice, this list of conditions and the following disclaimer in the
15 *    documentation and/or other materials provided with the distribution.
16 * 4. Neither the name of the University nor the names of its contributors
17 *    may be used to endorse or promote products derived from this software
18 *    without specific prior written permission.
19 *
20 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
21 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
22 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
23 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
24 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
25 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
26 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
27 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
28 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
29 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
30 * SUCH DAMAGE.
31 *
32 *	from: @(#)cpu.h 5.4 (Berkeley) 5/9/91
33 *	from: FreeBSD: src/sys/i386/include/cpu.h,v 1.62 2001/06/29
34 * $FreeBSD: head/sys/sparc64/include/cpu.h 133084 2004-08-03 18:44:27Z mux $
35 */
36
37#ifndef	_MACHINE_CPU_H_
38#define	_MACHINE_CPU_H_
39
40#include <machine/frame.h>
41#include <machine/tstate.h>
42
43#define	CLKF_USERMODE(cfp)	TRAPF_USERMODE(&(cfp)->cf_tf)
44#define	CLKF_PC(cfp)		TRAPF_PC(&(cfp)->cf_tf)
45
46#define	TRAPF_PC(tfp)		((tfp)->tf_tpc)
47#define	TRAPF_USERMODE(tfp)	(((tfp)->tf_tstate & TSTATE_PRIV) == 0)
48
49#define	cpu_getstack(td)	((td)->td_frame->tf_sp)
50#define	cpu_setstack(td, sp)	((td)->td_frame->tf_sp = (sp))
51#define	cpu_spinwait()		/* nothing */
52
53/*
54 * CTL_MACHDEP definitions.
55 */
56#define CPU_CONSDEV		1	/* dev_t: console terminal device */
57#define	CPU_ADJKERNTZ		2	/* int:	timezone offset	(seconds) */
58#define	CPU_DISRTCSET		3	/* int: disable resettodr() call */
59#define CPU_BOOTINFO		4	/* struct: bootinfo */
60#define	CPU_WALLCLOCK		5	/* int:	indicates wall CMOS clock */
61#define	CPU_MAXID		6	/* number of valid machdep ids */
62
63#define CTL_MACHDEP_NAMES { \
64	{ 0, 0 }, \
65	{ "console_device", CTLTYPE_STRUCT }, \
66	{ "adjkerntz", CTLTYPE_INT }, \
67	{ "disable_rtc_set", CTLTYPE_INT }, \
68	{ "bootinfo", CTLTYPE_STRUCT }, \
69	{ "wall_cmos_clock", CTLTYPE_INT }, \
70}
71
72#ifdef _KERNEL
73
74extern	char btext[];
75extern	char etext[];
76
77void	cpu_halt(void);
78void	cpu_reset(void);
79void	fork_trampoline(void);
80void	swi_vm(void *v);
81
82static __inline u_int64_t
83get_cyclecount(void)
84{
85
86	return (rd(tick));
87}
88
89#endif
90
91#endif /* !_MACHINE_CPU_H_ */
92