cpu.h revision 88619 
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 * 3. All advertising materials mentioning features or use of this software
17 *    must display the following acknowledgement:
18 *      This product includes software developed by the University of
19 *      California, Berkeley and its contributors.
20 * 4. Neither the name of the University nor the names of its contributors
21 *    may be used to endorse or promote products derived from this software
22 *    without specific prior written permission.
23 *
24 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
25 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
26 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
27 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
28 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
29 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
30 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
31 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
32 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
33 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
34 * SUCH DAMAGE.
35 *
36 *	from: @(#)cpu.h 5.4 (Berkeley) 5/9/91
37 *	from: FreeBSD: src/sys/i386/include/cpu.h,v 1.62 2001/06/29
38 * $FreeBSD: head/sys/sparc64/include/cpu.h 88619 2001-12-29 06:51:14Z jake $
39 */
40
41#ifndef	_MACHINE_CPU_H_
42#define	_MACHINE_CPU_H_
43
44#include <machine/frame.h>
45#include <machine/tstate.h>
46
47#define	CLKF_USERMODE(cfp)	TRAPF_USERMODE(&(cfp)->cf_tf)
48#define	CLKF_PC(cfp)		((cfp)->cf_tf.tf_tpc)
49
50#define	TRAPF_PC(tfp)		((tfp)->tf_tpc)
51#define	TRAPF_USERMODE(tfp)	(((tfp)->tf_tstate & TSTATE_PRIV) == 0)
52
53#define	cpu_getstack(td)	((td)->td_frame->tf_sp)
54#define	cpu_setstack(td, sp)	((td)->td_frame->tf_sp = (sp))
55
56/*
57 * CTL_MACHDEP definitions.
58 */
59#define CPU_CONSDEV		1	/* dev_t: console terminal device */
60#define	CPU_ADJKERNTZ		2	/* int:	timezone offset	(seconds) */
61#define	CPU_DISRTCSET		3	/* int: disable resettodr() call */
62#define CPU_BOOTINFO		4	/* struct: bootinfo */
63#define	CPU_WALLCLOCK		5	/* int:	indicates wall CMOS clock */
64#define	CPU_MAXID		6	/* number of valid machdep ids */
65
66#define CTL_MACHDEP_NAMES { \
67	{ 0, 0 }, \
68	{ "console_device", CTLTYPE_STRUCT }, \
69	{ "adjkerntz", CTLTYPE_INT }, \
70	{ "disable_rtc_set", CTLTYPE_INT }, \
71	{ "bootinfo", CTLTYPE_STRUCT }, \
72	{ "wall_cmos_clock", CTLTYPE_INT }, \
73}
74
75#ifdef _KERNEL
76
77void	fork_trampoline(void);
78
79static __inline u_int64_t
80get_cyclecount(void)
81{
82
83	return (rd(tick));
84}
85
86#endif
87
88#endif /* !_MACHINE_CPU_H_ */
89