summaryrefslogtreecommitdiff
path: root/sys/arch/evbcf/include/cpu.h
blob: 0438204ddee9b4338bc8296a7a7c38fcce3a49a6 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
/*	$NetBSD: cpu.h,v 1.5 2019/11/23 19:40:35 ad Exp $	*/

/*
 * Copyright (c) 1988 University of Utah.
 * Copyright (c) 1982, 1990, 1993
 *	The Regents of the University of California.  All rights reserved.
 *
 * This code is derived from software contributed to Berkeley by
 * the Systems Programming Group of the University of Utah Computer
 * Science Department.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 * 3. Neither the name of the University nor the names of its contributors
 *    may be used to endorse or promote products derived from this software
 *    without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 *
 * from: Utah $Hdr: cpu.h 1.16 91/03/25$
 *
 *	@(#)cpu.h	8.4 (Berkeley) 1/5/94
 */

#ifndef _MACHINE_CPU_H_
#define _MACHINE_CPU_H_

#if defined(_KERNEL_OPT)
#include "opt_lockdebug.h"
#include "opt_m68k_arch.h"
#endif

/*
 * Get common m68k CPU definitions.
 */
#include <m68k/cpu.h>

#if defined(_KERNEL)
/*
 * Exported definitions unique to mvme68k/68k cpu support.
 */
#define	M68K_MMU_COLDFIRE

/*
 * Arguments to hardclock and gatherstats encapsulate the previous
 * machine state in an opaque clockframe.  On the evbcf, we use
 * what the hardware pushes on an interrupt (frame format 0).
 */
struct clockframe {
	u_short	sr;		/* sr at time of interrupt */
	u_long	pc;		/* pc at time of interrupt */
	u_short	fmt:4,
		vec:12;		/* vector offset (4-word frame) */
} __attribute__((packed));

#define	CLKF_USERMODE(framep)	(((framep)->sr & PSL_S) == 0)
#define	CLKF_PC(framep)		((framep)->pc)

/*
 * The clock interrupt handler can determine if it's a nested
 * interrupt by checking for interrupt_depth > 1.
 * (Remember, the clock interrupt handler itself will cause the
 * depth counter to be incremented).
 */
extern volatile unsigned int interrupt_depth;
#define	CLKF_INTR(framep)	(interrupt_depth > 1)


/*
 * Preempt the current process if in interrupt from user mode,
 * or after the current trap/syscall if in system mode.
 */
#define	cpu_need_resched(ci,l,flags)	\
	do { aston(); } while (/* CONSTCOND */0)

/*
 * Give a profiling tick to the current process when the user profiling
 * buffer pages are invalid.  On the evbcf, request an ast to send us
 * through trap, marking the proc as needing a profiling tick.
 */
#define	cpu_need_proftick(l)	\
	do { (l)->l_pflag |= LP_OWEUPC; aston(); } while (/* CONSTCOND */0)

/*
 * Notify the current process (p) that it has a signal pending,
 * process as soon as possible.
 */
#define	cpu_signotify(l)	aston()

extern int astpending;		/* need to trap before returning to user mode */
#define aston() (astpending++)

/*
 * Associate MVME models with CPU types.
 */
#define	MVME68K		1	

/*
 * MVME-147; 68030 CPU
 */
#if defined(MVME147) && !defined(M68030)
#define M68030
#endif

/*
 * MVME-162/166/167; 68040 CPU
 */
#if (defined(MVME162) || defined(MVME167)) && !defined(M68040)
#define M68040
#endif

/*
 * MVME-172/177; 68060 CPU
 */
#if (defined(MVME172) || defined(MVME177)) && !defined(M68060)
#define M68060
#endif
#endif /* _KERNEL */

/*
 * Values for machineid; these match the Bug's values.
 */
#define	MVME_147	0x147
#define	MVME_162	0x162
#define	MVME_166	0x166
#define	MVME_167	0x167
#define	MVME_172	0x172
#define	MVME_177	0x177

#ifdef _KERNEL
extern	int machineid;
extern	int cpuspeed;
extern	char *intiobase, *intiolimit;
extern	u_int intiobase_phys, intiotop_phys;
extern	u_long ether_data_buff_size;
extern	u_char mvme_ea[6];

void	doboot(int) 
	__attribute__((__noreturn__));
int	nmihand(void *);
void	mvme68k_abort(const char *);
void	*iomap(u_long, size_t);
void	iounmap(void *, size_t);
void	loadustp(paddr_t);

/* physical memory addresses where mvme147's onboard devices live */
#define	INTIOBASE147	(0xfffe0000u)
#define	INTIOTOP147	(0xfffe5000u)

/* ditto for mvme1[67][27] */
#define	INTIOBASE1xx	(0xfff40000u)
#define	INTIOTOP1xx	(0xfffd0000u)

#endif /* _KERNEL */

#endif /* _MACHINE_CPU_H_ */