xref: /netbsd-src/sys/arch/vax/include/cpu.h (revision ae9172d6cd9432a6a1a56760d86b32c57a66c39c)
1 /*      $NetBSD: cpu.h,v 1.4 1994/11/25 19:08:50 ragge Exp $      */
2 
3 /*
4  * Copyright (c) 1994 Ludd, University of Lule}, Sweden
5  * All rights reserved.
6  *
7  * Redistribution and use in source and binary forms, with or without
8  * modification, are permitted provided that the following conditions
9  * are met:
10  * 1. Redistributions of source code must retain the above copyright
11  *    notice, this list of conditions and the following disclaimer.
12  * 2. Redistributions in binary form must reproduce the above copyright
13  *    notice, this list of conditions and the following disclaimer in the
14  *    documentation and/or other materials provided with the distribution.
15  * 3. All advertising materials mentioning features or use of this software
16  *    must display the following acknowledgement:
17  *      This product includes software developed at Ludd, University of Lule}
18  * 4. The name of the author may not be used to endorse or promote products
19  *    derived from this software without specific prior written permission
20  *
21  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
22  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
23  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
24  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
25  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
26  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
27  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
28  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
29  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
30  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
31  */
32 
33  /* All bugs are subject to removal without further notice */
34 
35 #include "cdefs.h"
36 #include "vax/include/mtpr.h"
37 
38 #define enablertclock()
39 
40 
41 struct	cpu_dep {
42 	int	(*cpu_loinit)();
43 	int	(*cpu_clock)();
44 	int	(*cpu_mem)();
45 	int	(*cpu_config)();
46 };
47 
48 struct clockframe {
49         int     pc;
50         int     ps;
51 };
52 
53 struct cpuops {
54 	int *nisse;
55 	int (*cpu_memenable)();
56 	int (*cpu_memerr)();
57 	int (*cpu_mchk)();
58 	int (*cpu_init)();
59 };
60 
61 struct percpu {
62 	int pc_cputype;
63 	int pc_cpuspeed;
64 	int pc_nioa;
65 	struct iobus *pc_io;
66 	struct cpuops *pc_ops;
67 };
68 
69 struct clockops {
70 	int (*p1)();
71 	int (*p2)();
72 	int (*p3)();
73 };
74 
75 #define todr()		mfpr(PR_TODR)
76 #define	setsoftnet()	mtpr(12,PR_SIRR)
77 #define setsoftclock()	mtpr(8,PR_SIRR)
78 
79 /*
80  * Preempt the current process if in interrupt from user mode,
81  * or after the current trap/syscall if in system mode.
82  */
83 
84 #define need_resched(){ \
85 	want_resched++; \
86 	mtpr(AST_OK,PR_ASTLVL); \
87 	}
88 
89 /*
90  * Notify the current process (p) that it has a signal pending,
91  * process as soon as possible.
92  */
93 
94 #define signotify(p)     mtpr(AST_OK,PR_ASTLVL);
95 
96 extern	int     want_resched;   /* resched() was called */
97 
98