2 /* From: NetBSD: cpu.h,v 1.18 1997/09/23 23:17:49 mjacob Exp */
5 * Copyright (c) 1988 University of Utah.
6 * Copyright (c) 1982, 1990, 1993
7 * The Regents of the University of California. All rights reserved.
9 * This code is derived from software contributed to Berkeley by
10 * the Systems Programming Group of the University of Utah Computer
13 * Redistribution and use in source and binary forms, with or without
14 * modification, are permitted provided that the following conditions
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.
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
37 * from: Utah $Hdr: cpu.h 1.16 91/03/25$
39 * @(#)cpu.h 8.4 (Berkeley) 1/5/94
42 #ifndef _MACHINE_CPU_H_
43 #define _MACHINE_CPU_H_
45 #include <machine/frame.h>
48 * Arguments to hardclock and gatherstats encapsulate the previous machine
49 * state in an opaque clockframe.
52 struct trapframe cf_tf;
54 #define CLKF_PC(cf) ((cf)->cf_tf.tf_special.iip)
55 #define CLKF_CPL(cf) ((cf)->cf_tf.tf_special.psr & IA64_PSR_CPL)
56 #define CLKF_USERMODE(cf) (CLKF_CPL(cf) != IA64_PSR_CPL_KERN)
58 #define TRAPF_PC(tf) ((tf)->tf_special.iip)
59 #define TRAPF_CPL(tf) ((tf)->tf_special.psr & IA64_PSR_CPL)
60 #define TRAPF_USERMODE(tf) (TRAPF_CPL(tf) != IA64_PSR_CPL_KERN)
63 * CTL_MACHDEP definitions.
65 #define CPU_CONSDEV 1 /* dev_t: console terminal device */
66 #define CPU_ADJKERNTZ 2 /* int: timezone offset (seconds) */
67 #define CPU_DISRTCSET 3 /* int: disable resettodr() call */
68 #define CPU_WALLCLOCK 4 /* int: indicates wall CMOS clock */
69 #define CPU_MAXID 5 /* valid machdep IDs */
71 #define CTL_MACHDEP_NAMES { \
73 { "console_device", CTLTYPE_STRUCT }, \
74 { "adjkerntz", CTLTYPE_INT }, \
75 { "disable_rtc_set", CTLTYPE_INT }, \
76 { "wall_cmos_clock", CTLTYPE_INT }, \
87 * Return contents of in-cpu fast counter as a sort of "bogo-time"
88 * for non-critical timing.
90 #define get_cyclecount ia64_get_itc
92 /* Used by signaling code. */
93 #define cpu_getstack(td) ((td)->td_frame->tf_special.sp)
94 #define cpu_spinwait() /* nothing */
98 void fork_trampoline(void); /* MAGIC */
103 #endif /* _MACHINE_CPU_H_ */