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
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
|
/* $OpenBSD: param.h,v 1.51 2015/03/30 20:30:22 miod Exp $ */
/*
* 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. 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_PARAM_H_
#define _MACHINE_PARAM_H_
#ifdef _KERNEL /* XXX */
#ifndef _LOCORE /* XXX */
#include <machine/cpu.h> /* XXX */
#endif /* XXX */
#endif /* XXX */
/*
* Sun4M support by Aaron Brown, Harvard University.
* Changes Copyright (c) 1995 The President and Fellows of Harvard College.
* All rights reserved.
*/
#define _MACHINE sparc
#define MACHINE "sparc"
#define _MACHINE_ARCH sparc
#define MACHINE_ARCH "sparc"
#define MID_MACHINE MID_SPARC
/*
* The original SUN4 machines have 8K page size while the newer ones have a
* 4K page size. It is possible to build a kernel for either architecture,
* or have the page size be dynamically handled (via uvmexp variables) at
* run time.
*/
#define SUN4_PGSHIFT 13 /* for a sun4 machine */
#define SUN4CM_PGSHIFT 12 /* for a sun4c or sun4m machine */
#if (defined(SUN4) || defined(SUN4E)) && \
!(defined(SUN4C) || defined(SUN4D) || defined(SUN4M))
# define PAGE_SHIFT SUN4_PGSHIFT
# define PAGE_SIZE (1 << PAGE_SHIFT)
# define PAGE_MASK (PAGE_SIZE - 1)
#elif (defined(SUN4C) || defined(SUN4D) || defined(SUN4M)) && \
!(defined(SUN4) || defined(SUN4E))
# define PAGE_SHIFT SUN4CM_PGSHIFT
# define PAGE_SIZE (1 << PAGE_SHIFT)
# define PAGE_MASK (PAGE_SIZE - 1)
#elif defined(STANDALONE) /* boot blocks */
# define PAGE_SHIFT pgshift
# define PAGE_SIZE nbpg
# define PAGE_MASK pgofset
#else
# define PAGE_SHIFT uvmexp.pageshift
# define PAGE_SIZE uvmexp.pagesize
# define PAGE_MASK uvmexp.pagemask
#endif
#define KERNBASE 0xf8000000
#ifdef _KERNEL
#define NBPG PAGE_SIZE /* bytes/page */
#define PGSHIFT PAGE_SHIFT /* LOG2(PAGE_SIZE) */
#define PGOFSET PAGE_MASK /* byte offset into page */
/*#define UPAGES depends on machine model */
#define USPACE 8192 /* total size of u-area */
#define USPACE_ALIGN 0 /* u-area alignment 0-none */
#define NMBCLUSTERS 2048 /* map size, max cluster allocation */
/* cannot be changed without great pain */
#ifndef MSGBUFSIZE
#define MSGBUFSIZE 4096 /* default message buffer size */
#endif
/*
* Maximum size of the kernel malloc arena in PAGE_SIZE-sized
* logical pages.
*/
#define NKMEMPAGES_MAX_DEFAULT ((4 * 1024 * 1024) >> PAGE_SHIFT)
#ifndef _LOCORE
extern struct extent *dvmamap_extent;
extern void dvma_init(void);
extern caddr_t kdvma_mapin(caddr_t, int, int);
extern caddr_t dvma_malloc_space(size_t, void *, int, int);
extern void dvma_free(caddr_t, size_t, void *);
#define dvma_malloc(len,kaddr,flags) dvma_malloc_space(len,kaddr,flags,0)
extern void delay(unsigned int);
#define DELAY(n) delay(n)
extern int cputyp;
#endif /* _LOCORE */
#endif /* _KERNEL */
/*
* Values for the cputyp variable. Order is important!
* needed by locore, and libkvm
*/
#define CPU_SUN4 0
#define CPU_SUN4E 1
#define CPU_SUN4C 2
#define CPU_SUN4M 3
#define CPU_SUN4D 4
/*
* Shorthand CPU-type macros. Enumerate all eight cases.
* Let compiler optimize away code conditional on constants.
*
* On sun4 and sun4e machines, the page size is 8192, while on sun4c, sun4d
* and sun4m machines, it is 4096. Therefore, in the common case below, the
* various pagesize-related defines are defined as variables which are
* initialized early in locore.s after the machine type has been detected.
*
* Note that whenever the macros defined below evaluate to expressions
* involving variables, the kernel will perform slightly worse due to the
* extra memory references they'll generate.
*/
#if defined(SUN4) && !(defined(SUN4C) || defined(SUN4D) || defined(SUN4E) || defined(SUN4M))
# define CPU_ISSUN4 (1)
#elif defined(SUN4C) && !(defined(SUN4) || defined(SUN4D) || defined(SUN4E) || defined(SUN4M))
# define CPU_ISSUN4C (1)
#elif defined(SUN4D) && !(defined(SUN4) || defined(SUN4C) || defined(SUN4E) || defined(SUN4M))
# define CPU_ISSUN4D (1)
#elif defined(SUN4E) && !(defined(SUN4) || defined(SUN4C) || defined(SUN4D) || defined(SUN4M))
# define CPU_ISSUN4E (1)
#elif defined(SUN4M) && !(defined(SUN4) || defined(SUN4C) || defined(SUN4D) || defined(SUN4E))
# define CPU_ISSUN4M (1)
#elif (defined(SUN4) || defined(SUN4C)) && !(defined(SUN4D) || defined(SUN4E) || defined(SUN4M))
# define CPU_ISSUN4OR4C (1)
#elif (defined(SUN4) || defined(SUN4C) || defined(SUN4E)) && !(defined(SUN4D) || defined(SUN4M))
# define CPU_ISSUN4OR4COR4E (1)
#elif (defined(SUN4) || defined(SUN4E)) && !(defined(SUN4C) || defined(SUN4D) || defined(SUN4M))
# define CPU_ISSUN4OR4E (1)
#elif (defined(SUN4C) || defined(SUN4M)) && !(defined(SUN4) || defined(SUN4D) || defined(SUN4E))
# define CPU_ISSUN4COR4M (1)
#elif (defined(SUN4D) || defined(SUN4M)) && !(defined(SUN4) || defined(SUN4C) || defined(SUN4E))
# define CPU_ISSUN4DOR4M (1)
#endif
#if !defined(CPU_ISSUN4)
#if defined(SUN4)
# define CPU_ISSUN4 (cputyp == CPU_SUN4)
#else
# define CPU_ISSUN4 (0)
#endif
#endif
#if !defined(CPU_ISSUN4C)
#if defined(SUN4C)
# define CPU_ISSUN4C (cputyp == CPU_SUN4C)
#else
# define CPU_ISSUN4C (0)
#endif
#endif
#if !defined(CPU_ISSUN4D)
#if defined(SUN4D)
# define CPU_ISSUN4D (cputyp == CPU_SUN4D)
#else
# define CPU_ISSUN4D (0)
#endif
#endif
#if !defined(CPU_ISSUN4E)
#if defined(SUN4E)
# define CPU_ISSUN4E (cputyp == CPU_SUN4E)
#else
# define CPU_ISSUN4E (0)
#endif
#endif
#if !defined(CPU_ISSUN4M)
#if defined(SUN4M)
# define CPU_ISSUN4M (cputyp == CPU_SUN4M)
#else
# define CPU_ISSUN4M (0)
#endif
#endif
#if !defined(CPU_ISSUN4OR4C)
# define CPU_ISSUN4OR4C (CPU_ISSUN4 || CPU_ISSUN4C)
#endif
#if !defined(CPU_ISSUN4OR4E)
# define CPU_ISSUN4OR4E (cputyp <= CPU_SUN4E)
/* (CPU_ISSUN4 || CPU_ISSUN4E) */
#endif
#if !defined(CPU_ISSUN4OR4COR4E)
# define CPU_ISSUN4OR4COR4E (cputyp <= CPU_SUN4C)
/* (CPU_ISSUN4 || CPU_ISSUN4C || CPU_ISSUN4E) */
#endif
#if !defined(CPU_ISSUN4COR4M)
# define CPU_ISSUN4COR4M (CPU_ISSUN4C || CPU_ISSUN4M)
#endif
#if !defined(CPU_ISSUN4DOR4M)
# define CPU_ISSUN4DOR4M (cputyp >= CPU_SUN4M)
/* (CPU_ISSUN4D || CPU_ISSUN4M) */
#endif
#endif /* _MACHINE_PARAM_H_ */
|
