cpu.h revision 1.52 1 /* $NetBSD: cpu.h,v 1.52 1997/10/20 08:14:01 scottr Exp $ */
2
3 /*
4 * Copyright (c) 1988 University of Utah.
5 * Copyright (c) 1982, 1990 The Regents of the University of California.
6 * All rights reserved.
7 *
8 * This code is derived from software contributed to Berkeley by
9 * the Systems Programming Group of the University of Utah Computer
10 * Science Department.
11 *
12 * Redistribution and use in source and binary forms, with or without
13 * modification, are permitted provided that the following conditions
14 * are met:
15 * 1. Redistributions of source code must retain the above copyright
16 * notice, this list of conditions and the following disclaimer.
17 * 2. Redistributions in binary form must reproduce the above copyright
18 * notice, this list of conditions and the following disclaimer in the
19 * documentation and/or other materials provided with the distribution.
20 * 3. All advertising materials mentioning features or use of this software
21 * must display the following acknowledgement:
22 * This product includes software developed by the University of
23 * California, Berkeley and its contributors.
24 * 4. Neither the name of the University nor the names of its contributors
25 * may be used to endorse or promote products derived from this software
26 * without specific prior written permission.
27 *
28 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
29 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
30 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
31 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
32 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
33 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
34 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
35 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
36 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
37 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
38 * SUCH DAMAGE.
39 */
40
41 /*
42 * Copyright (c) 1992, 1993 BCDL Labs. All rights reserved.
43 * Allen Briggs, Chris Caputo, Michael Finch, Brad Grantham, Lawrence Kesteloot
44
45 * Redistribution of this source code or any part thereof is permitted,
46 * provided that the following conditions are met:
47 * 1) Utilized source contains the copyright message above, this list
48 * of conditions, and the following disclaimer.
49 * 2) Binary objects containing compiled source reproduce the
50 * copyright notice above on startup.
51 *
52 * CAVEAT: This source code is provided "as-is" by BCDL Labs, and any
53 * warranties of ANY kind are disclaimed. We don't even claim that it
54 * won't crash your hard disk. Basically, we want a little credit if
55 * it works, but we don't want to get mail-bombed if it doesn't.
56 */
57
58 /*
59 * from: Utah $Hdr: cpu.h 1.16 91/03/25$
60 *
61 * @(#)cpu.h 7.7 (Berkeley) 6/27/91
62 */
63
64 #ifndef _CPU_MACHINE_
65 #define _CPU_MACHINE_
66
67 /*
68 * Exported definitions unique to mac68k/68k cpu support.
69 */
70
71 /*
72 * Get common m68k definitions.
73 */
74 #include <m68k/cpu.h>
75 #define M68K_MMU_MOTOROLA
76
77 /*
78 * Get interrupt glue.
79 */
80 #include <machine/intr.h>
81
82 /*
83 * definitions of cpu-dependent requirements
84 * referenced in generic code
85 */
86 #define cpu_swapin(p) /* nothing */
87 #define cpu_wait(p) /* nothing */
88 #define cpu_swapout(p) /* nothing */
89
90 /*
91 * Arguments to hardclock and gatherstats encapsulate the previous
92 * machine state in an opaque clockframe. One the hp300, we use
93 * what the hardware pushes on an interrupt (frame format 0).
94 */
95 struct clockframe {
96 u_short sr; /* sr at time of interrupt */
97 u_long pc; /* pc at time of interrupt */
98 u_short vo; /* vector offset (4-word frame) */
99 };
100
101 #define CLKF_USERMODE(framep) (((framep)->sr & PSL_S) == 0)
102 #define CLKF_BASEPRI(framep) (((framep)->sr & PSL_IPL) == 0)
103 #define CLKF_PC(framep) ((framep)->pc)
104 #define CLKF_INTR(framep) (0) /* XXX should use PSL_M (see hp300) */
105
106 /*
107 * Preempt the current process if in interrupt from user mode,
108 * or after the current trap/syscall if in system mode.
109 */
110 #define need_resched() { want_resched++; aston(); }
111
112 /*
113 * Give a profiling tick to the current process from the softclock
114 * interrupt. Request an ast to send us through trap(),
115 * marking the proc as needing a profiling tick.
116 */
117 #define need_proftick(p) ( (p)->p_flag |= P_OWEUPC, aston() )
118
119 /*
120 * Notify the current process (p) that it has a signal pending,
121 * process as soon as possible.
122 */
123 #define signotify(p) aston()
124
125 #define aston() (astpending++)
126
127 int astpending; /* need to trap before returning to user mode */
128 int want_resched; /* resched() was called */
129
130 #define CPU_CONSDEV 1
131 #define CPU_MAXID 2
132
133 #define CTL_MACHDEP_NAMES { \
134 { 0, 0 }, \
135 { "console_device", CTLTYPE_STRUCT }, \
136 }
137
138 /* values for machineid --
139 * These are equivalent to the MacOS Gestalt values. */
140 #define MACH_MACII 6
141 #define MACH_MACIIX 7
142 #define MACH_MACIICX 8
143 #define MACH_MACSE30 9
144 #define MACH_MACIICI 11
145 #define MACH_MACIIFX 13
146 #define MACH_MACIISI 18
147 #define MACH_MACQ900 20
148 #define MACH_MACPB170 21
149 #define MACH_MACQ700 22
150 #define MACH_MACCLASSICII 23
151 #define MACH_MACPB100 24
152 #define MACH_MACPB140 25
153 #define MACH_MACQ950 26
154 #define MACH_MACLCIII 27
155 #define MACH_MACPB210 29
156 #define MACH_MACC650 30
157 #define MACH_MACPB230 32
158 #define MACH_MACPB180 33
159 #define MACH_MACPB160 34
160 #define MACH_MACQ800 35
161 #define MACH_MACQ650 36
162 #define MACH_MACLCII 37
163 #define MACH_MACPB250 38
164 #define MACH_MACIIVI 44
165 #define MACH_MACP600 45
166 #define MACH_MACIIVX 48
167 #define MACH_MACCCLASSIC 49
168 #define MACH_MACPB165C 50
169 #define MACH_MACC610 52
170 #define MACH_MACQ610 53
171 #define MACH_MACPB145 54
172 #define MACH_MACLC520 56
173 #define MACH_MACC660AV 60
174 #define MACH_MACP460 62
175 #define MACH_MACPB180C 71
176 #define MACH_MACPB500 72
177 #define MACH_MACPB270 77
178 #define MACH_MACQ840AV 78
179 #define MACH_MACP550 80
180 #define MACH_MACCCLASSICII 83
181 #define MACH_MACPB165 84
182 #define MACH_MACTV 88
183 #define MACH_MACLC475 89
184 #define MACH_MACLC475_33 90
185 #define MACH_MACLC575 92
186 #define MACH_MACQ605 94
187 #define MACH_MACQ605_33 95
188 #define MACH_MACQ630 98
189 #define MACH_MACPB280 102
190 #define MACH_MACPB280C 103
191 #define MACH_MACPB150 115
192
193 /*
194 * Machine classes. These define subsets of the above machines.
195 */
196 #define MACH_CLASSH 0x0000 /* Hopeless cases... */
197 #define MACH_CLASSII 0x0001 /* MacII class */
198 #define MACH_CLASSIIci 0x0004 /* Have RBV, but no Egret */
199 #define MACH_CLASSIIsi 0x0005 /* Similar to IIci -- Have Egret. */
200 #define MACH_CLASSIIvx 0x0006 /* Similar to IIsi -- different via2 emul? */
201 #define MACH_CLASSLC 0x0007 /* Low-Cost/Performa/Wal-Mart Macs. */
202 #define MACH_CLASSPB 0x0008 /* Powerbooks. Power management. */
203 #define MACH_CLASSDUO 0x0009 /* Powerbooks Duos. More integration/Docks. */
204 #define MACH_CLASSIIfx 0x0080 /* The IIfx is in a class by itself. */
205 #define MACH_CLASSQ 0x0100 /* non-A/V Centris/Quadras. */
206 #define MACH_CLASSAV 0x0101 /* A/V Centris/Quadras. */
207 #define MACH_CLASSQ2 0x0102 /* More Centris/Quadras, different sccA. */
208
209 #define MACH_68020 0
210 #define MACH_68030 1
211 #define MACH_68040 2
212 #define MACH_PENTIUM 3 /* 66 and 99 MHz versions *only* */
213
214 #ifdef _KERNEL
215 struct mac68k_machine_S {
216 int cpu_model_index;
217 /*
218 * Misc. info from booter.
219 */
220 int machineid;
221 int mach_processor;
222 int mach_memsize;
223 int booter_version;
224 /*
225 * Debugging flags.
226 */
227 int do_graybars;
228 int serial_boot_echo;
229 int serial_console;
230
231 int zs_chip; /* what type of chip we've got */
232 int modem_flags;
233 int modem_cts_clk;
234 int modem_dcd_clk;
235 int modem_d_speed;
236 int print_flags;
237 int print_cts_clk;
238 int print_dcd_clk;
239 int print_d_speed;
240 /*
241 * Misc. hardware info.
242 */
243 int scsi80; /* Has NCR 5380 */
244 int scsi96; /* Has NCR 53C96 */
245 int scsi96_2; /* Has 2nd 53C96 */
246 int sonic; /* Has SONIC e-net */
247 };
248
249 /* What kind of model is this */
250 struct cpu_model_info {
251 int machineid; /* MacOS Gestalt value. */
252 char *model_major; /* Make this distinction to save a few */
253 char *model_minor; /* bytes--might be useful, too. */
254 int class; /* Rough class of machine. */
255 /* forwarded romvec_s is defined in mac68k/macrom.h */
256 struct romvec_s *rom_vectors; /* Pointer to our known rom vectors */
257 };
258 extern struct cpu_model_info *current_mac_model;
259
260 extern unsigned long IOBase; /* Base address of I/O */
261 extern unsigned long NuBusBase; /* Base address of NuBus */
262
263 extern struct mac68k_machine_S mac68k_machine;
264 extern unsigned long load_addr;
265 #endif /* _KERNEL */
266
267 /* physical memory sections */
268 #define ROMBASE (0x40800000)
269 #define ROMLEN (0x00200000) /* 2MB will work for all 68k */
270 #define ROMMAPSIZE btoc(ROMLEN) /* 32k of page tables. */
271
272 #define IIOMAPSIZE btoc(0x00100000) /* 1MB should be enough */
273
274 /* XXX -- Need to do something about superspace.
275 * Technically, NuBus superspace starts at 0x60000000, but no
276 * known Macintosh has used any slot lower numbered than 9, and
277 * the super space is defined as 0xS000 0000 through 0xSFFF FFFF
278 * where S is the slot number--ranging from 0x9 - 0xE.
279 */
280 #define NBSBASE 0x90000000
281 #define NBSTOP 0xF0000000
282 #define NBBASE 0xF9000000 /* NUBUS space */
283 #define NBTOP 0xFF000000 /* NUBUS space */
284 #define NBMAPSIZE btoc(NBTOP-NBBASE) /* ~ 96 megs */
285 #define NBMEMSIZE 0x01000000 /* 16 megs per card */
286 #define NBROMOFFSET 0x00FF0000 /* Last 64K == ROM */
287
288 #ifdef _KERNEL
289
290 struct frame;
291 struct fpframe;
292 struct pcb;
293
294 /* machdep.c */
295 void mac68k_set_bell_callback __P((int (*)(void *, int, int, int), void *));
296 int mac68k_ring_bell __P((int, int, int));
297 u_int get_mapping __P((void));
298
299 /* locore.s */
300 void m68881_restore __P((struct fpframe *));
301 void m68881_save __P((struct fpframe *));
302 u_int getsfc __P((void));
303 u_int getdfc __P((void));
304 void TBIA __P((void));
305 void TBIAS __P((void));
306 void TBIS __P((vm_offset_t));
307 void DCFP __P((vm_offset_t));
308 void ICPP __P((vm_offset_t));
309 void DCIU __P((void));
310 void DCIS __P((void));
311 void ICIA __P((void));
312 void DCFL __P((vm_offset_t));
313 int suline __P((caddr_t, caddr_t));
314 void savectx __P((struct pcb *));
315 void proc_trampoline __P((void));
316
317 /* vm_machdep.c */
318 void physaccess __P((caddr_t, caddr_t, register int, register int));
319 void physunaccess __P((caddr_t, register int));
320
321 #endif
322
323 #endif /* _CPU_MACHINE_ */
324