cpu.h revision 80708 
1/*-
2 * Copyright (c) 2001 Jake Burkholder.
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 *    notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 *    notice, this list of conditions and the following disclaimer in the
12 *    documentation and/or other materials provided with the distribution.
13 *
14 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
24 * SUCH DAMAGE.
25 *
26 * $FreeBSD: head/sys/sparc64/include/cpu.h 80708 2001-07-31 05:45:16Z jake $
27 */
28
29#ifndef	_MACHINE_CPU_H_
30#define	_MACHINE_CPU_H_
31
32#include <machine/frame.h>
33
34#define	CLKF_USERMODE(cfp)	(0)
35#define	CLKF_PC(cfp)		(0)
36
37#define	cpu_getstack(p)		(0)
38#define	cpu_setstack(p, sp)	(0)
39
40/*
41 * Arrange to handle pending profiling ticks before returning to user mode.
42 */
43#define	need_proftick(p) do {						\
44	mtx_lock_spin(&sched_lock);					\
45	(p)->p_sflag |= PS_OWEUPC;					\
46	aston(p);							\
47	mtx_unlock_spin(&sched_lock);					\
48} while (0)
49
50/*
51 * CTL_MACHDEP definitions.
52 */
53#define CPU_CONSDEV		1	/* dev_t: console terminal device */
54#define	CPU_ADJKERNTZ		2	/* int:	timezone offset	(seconds) */
55#define	CPU_DISRTCSET		3	/* int: disable resettodr() call */
56#define CPU_BOOTINFO		4	/* struct: bootinfo */
57#define	CPU_WALLCLOCK		5	/* int:	indicates wall CMOS clock */
58#define	CPU_MAXID		6	/* number of valid machdep ids */
59
60#define CTL_MACHDEP_NAMES { \
61	{ 0, 0 }, \
62	{ "console_device", CTLTYPE_STRUCT }, \
63	{ "adjkerntz", CTLTYPE_INT }, \
64	{ "disable_rtc_set", CTLTYPE_INT }, \
65	{ "bootinfo", CTLTYPE_STRUCT }, \
66	{ "wall_cmos_clock", CTLTYPE_INT }, \
67}
68
69static __inline u_int64_t
70get_cyclecount(void)
71{
72	static u_long now;
73	return (++now);
74}
75
76#endif /* !_MACHINE_CPU_H_ */
77