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
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
|
/* $OpenBSD: cpu.h,v 1.11 2001/08/12 12:03:02 heko Exp $ */
/*
* Copyright (c) 1996 Nivas Madhur
* Copyright (c) 1992, 1993
* The Regents of the University of California. All rights reserved.
*
* This software was developed by the Computer Systems Engineering group
* at Lawrence Berkeley Laboratory under DARPA contract BG 91-66 and
* contributed to Berkeley.
*
* All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by the University of
* California, Lawrence Berkeley Laboratory.
*
* 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. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by the University of
* California, Berkeley and its contributors.
* 4. 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.
*/
#ifndef __MACHINE_CPU_H__
#define __MACHINE_CPU_H__
/*
* CTL_MACHDEP definitinos.
*/
#define CPU_MAXID 1 /* no valid machdep ids */
#define CTL_MACHDEP_NAMES { \
{ 0, 0 }, \
}
#ifdef _KERNEL
#include <machine/psl.h>
#include <machine/pcb.h>
#include <machine/board.h>
/*
* definitions of cpu-dependent requirements
* referenced in generic code
*/
#define COPY_SIGCODE /* copy sigcode above user stack in exec */
#define cpu_exec(p) /* nothing */
#define cpu_wait(p) /* nothing */
#define cpu_swapout(p) /* nothing */
/*
* Arguments to hardclock and gatherstats encapsulate the previous
* machine state in an opaque clockframe. CLKF_INTR is only valid
* if the process is in kernel mode. Clockframe is really trapframe,
* so pointer to clockframe can be safely cast into a pointer to
* trapframe.
*/
struct clockframe {
struct trapframe tf;
};
extern int intstack;
#define CLKF_USERMODE(framep) ((((struct trapframe *)(framep))->epsr & PSR_MODE) == 0)
#define CLKF_BASEPRI(framep) (((struct trapframe *)(framep))->mask == 0)
#define CLKF_PC(framep) (((struct trapframe *)(framep))->sxip & ~3)
#define CLKF_INTR(framep) (((struct trapframe *)(framep))->r[31] > intstack)
/*
* Get interrupt glue.
*/
#include <machine/intr.h>
/*
* Internal IO space (iiomapsize).
*
* Internal IO space is mapped in the kernel from ``OBIO_START'' to
* ``intiolimit'' (defined in locore.s). Since it is always mapped,
* conversion between physical and kernel virtual addresses is easy.
*/
#ifdef VIRTMAP
/* This will do non 1:1 phys/virt memory mapping in the future - SPM */
#define ISIIOVA(va) \
((char *)(va) >= intiobase && (char *)(va) < intiolimit)
#define IIOV(pa) ((int)(pa)-(int)iiomapbase+(int)intiobase)
#define IIOP(va) ((int)(va)-(int)intiobase+(int)iiomapbase)
#define IIOPOFF(pa) ((int)(pa)-(int)iiomapbase)
#else
#define ISIIOVA(va) 1
#define IIOV(pa) ((pa))
#define IIOP(va) ((va))
#define IIOPOFF(pa) ((int)(pa)-(int)OBIO_START)
#endif
#define SIR_NET 1
#define SIR_CLOCK 2
#define setsoftint(x) (ssir |= (x))
#define setsoftnet() (ssir |= SIR_NET)
#define setsoftclock() (ssir |= SIR_CLOCK)
#define siroff(x) (ssir &= ~x)
extern int ssir;
extern int want_ast;
/*
* Preempt the current process if in interrupt from user mode,
* or after the current trap/syscall if in system mode.
*/
extern int want_resched; /* resched() was called */
#define need_resched() (want_resched = 1, want_ast = 1)
/*
* Give a profiling tick to the current process when the user profiling
* buffer pages are invalid. On the sparc, request an ast to send us
* through trap(), marking the proc as needing a profiling tick.
*/
#define need_proftick(p) ((p)->p_flag |= P_OWEUPC, want_ast = 1)
/*
* Notify the current process (p) that it has a signal pending,
* process as soon as possible.
*/
#define signotify(p) (want_ast = 1)
struct intrhand {
int (*ih_fn) __P((void *));
void *ih_arg;
int ih_ipl;
int ih_wantframe;
struct intrhand *ih_next;
};
int intr_establish __P((int vec, struct intrhand *));
/*
* return values for intr_establish()
*/
#define INTR_EST_SUCC 0
#define INTR_EST_BADVEC 1
#define INTR_EST_BADIPL 2
/*
* There are 256 possible vectors on a MVME1x7 platform (including
* onboard and VME vectors. Use intr_establish() to register a
* handler for the given vector. vector number is used to index
* into the intr_handlers[] table.
*/
extern struct intrhand *intr_handlers[256];
/*
* switchframe - should be double word aligned.
*/
struct switchframe {
u_int sf_pc; /* pc */
void *sf_proc; /* proc pointer */
};
/* This struct defines the machine dependant function pointers */
struct funcp {
void (*clock_init_func) __P((void)); /* interval clock init function */
void (*statclock_init_func) __P((void)); /* statistics clock init function */
void (*delayclock_init_func) __P((void)); /* delay clock init function */
void (*delay_func) __P((void)); /* delay clock function */
void (*interrupt_func) __P((u_int, struct m88100_saved_state *)); /* interrupt func */
void (*fp_precise_func) __P((void)); /* floating point precise function */
};
extern struct funcp mdfp;
int badvaddr __P((vm_offset_t va, int size));
void nmihand __P((void *framep));
#endif /* _KERNEL */
#endif /* __MACHINE_CPU_H__ */
|
