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: releng/6.0/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
74 extern char btext[];
75 extern char etext[];
76
77 void cpu_halt(void);
78 void cpu_reset(void);
79 void fork_trampoline(void);
80 void swi_vm(void *v);
81
82 static __inline u_int64_t
83 get_cyclecount(void)
84 {
85
86 return (rd(tick));
87 }
88
89 #endif
90
91 #endif /* !_MACHINE_CPU_H_ */
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