master
1/* $NetBSD: cpu.h,v 1.102 2019/11/23 19:40:35 ad 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. Neither the name of the University nor the names of its contributors
21 * may be used to endorse or promote products derived from this software
22 * without specific prior written permission.
23 *
24 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
25 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
26 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
27 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
28 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
29 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
30 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
31 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
32 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
33 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
34 * SUCH DAMAGE.
35 */
36
37/*
38 * Copyright (c) 1992, 1993 BCDL Labs. All rights reserved.
39 * Allen Briggs, Chris Caputo, Michael Finch, Brad Grantham, Lawrence Kesteloot
40
41 * Redistribution of this source code or any part thereof is permitted,
42 * provided that the following conditions are met:
43 * 1) Utilized source contains the copyright message above, this list
44 * of conditions, and the following disclaimer.
45 * 2) Binary objects containing compiled source reproduce the
46 * copyright notice above on startup.
47 *
48 * CAVEAT: This source code is provided "as-is" by BCDL Labs, and any
49 * warranties of ANY kind are disclaimed. We don't even claim that it
50 * won't crash your hard disk. Basically, we want a little credit if
51 * it works, but we don't want to get mail-bombed if it doesn't.
52 */
53
54/*
55 * from: Utah $Hdr: cpu.h 1.16 91/03/25$
56 *
57 * @(#)cpu.h 7.7 (Berkeley) 6/27/91
58 */
59
60#ifndef _CPU_MACHINE_
61#define _CPU_MACHINE_
62
63#if defined(_KERNEL_OPT)
64#include "opt_lockdebug.h"
65#endif
66
67/*
68 * Get common m68k definitions.
69 */
70#include <m68k/cpu.h>
71
72#if defined(_KERNEL)
73/*
74 * Exported definitions unique to mac68k/68k cpu support.
75 */
76#define M68K_MMU_MOTOROLA
77
78/*
79 * Get interrupt glue.
80 */
81#include <machine/intr.h>
82
83/*
84 * Arguments to hardclock and gatherstats encapsulate the previous
85 * machine state in an opaque clockframe. On the mac68k, we use
86 * what the hardware pushes on an interrupt (frame format 0).
87 */
88struct clockframe {
89 u_short sr; /* sr at time of interrupt */
90 u_long pc; /* pc at time of interrupt */
91 u_short vo; /* vector offset (4-word frame) */
92} __attribute__((packed));
93
94#define CLKF_USERMODE(framep) (((framep)->sr & PSL_S) == 0)
95#define CLKF_PC(framep) ((framep)->pc)
96#define CLKF_INTR(framep) (0) /* XXX should use PSL_M (see hp300) */
97
98/*
99 * Preempt the current process if in interrupt from user mode,
100 * or after the current trap/syscall if in system mode.
101 */
102#define cpu_need_resched(ci,l,flags) do { \
103 __USE(flags); \
104 aston(); \
105} while (/*CONSTCOND*/0)
106
107/*
108 * Give a profiling tick to the current process from the softclock
109 * interrupt. Request an ast to send us through trap(),
110 * marking the proc as needing a profiling tick.
111 */
112#define cpu_need_proftick(l) ( (l)->l_pflag |= LP_OWEUPC, aston() )
113
114/*
115 * Notify the current process (p) that it has a signal pending,
116 * process as soon as possible.
117 */
118#define cpu_signotify(l) aston()
119
120extern int astpending; /* need to trap before returning to user mode */
121#define aston() (astpending++)
122
123#endif /* _KERNEL */
124
125/* values for machineid --
126 * These are equivalent to the MacOS Gestalt values. */
127#define MACH_MACII 6
128#define MACH_MACIIX 7
129#define MACH_MACIICX 8
130#define MACH_MACSE30 9
131#define MACH_MACIICI 11
132#define MACH_MACIIFX 13
133#define MACH_MACIISI 18
134#define MACH_MACQ900 20
135#define MACH_MACPB170 21
136#define MACH_MACQ700 22
137#define MACH_MACCLASSICII 23
138#define MACH_MACPB100 24
139#define MACH_MACPB140 25
140#define MACH_MACQ950 26
141#define MACH_MACLCIII 27
142#define MACH_MACPB210 29
143#define MACH_MACC650 30
144#define MACH_MACPB230 32
145#define MACH_MACPB180 33
146#define MACH_MACPB160 34
147#define MACH_MACQ800 35
148#define MACH_MACQ650 36
149#define MACH_MACLCII 37
150#define MACH_MACPB250 38
151#define MACH_MACIIVI 44
152#define MACH_MACP600 45
153#define MACH_MACIIVX 48
154#define MACH_MACCCLASSIC 49
155#define MACH_MACPB165C 50
156#define MACH_MACC610 52
157#define MACH_MACQ610 53
158#define MACH_MACPB145 54
159#define MACH_MACLC520 56
160#define MACH_MACC660AV 60
161#define MACH_MACP460 62
162#define MACH_MACPB180C 71
163#define MACH_MACPB500 72
164#define MACH_MACPB270 77
165#define MACH_MACQ840AV 78
166#define MACH_MACP550 80
167#define MACH_MACCCLASSICII 83
168#define MACH_MACPB165 84
169#define MACH_MACPB190CS 85
170#define MACH_MACTV 88
171#define MACH_MACLC475 89
172#define MACH_MACLC475_33 90
173#define MACH_MACLC575 92
174#define MACH_MACQ605 94
175#define MACH_MACQ605_33 95
176#define MACH_MACQ630 98
177#define MACH_MACP580 99
178#define MACH_MACPB280 102
179#define MACH_MACPB280C 103
180#define MACH_MACPB150 115
181#define MACH_MACPB190 122
182
183/*
184 * Machine classes. These define subsets of the above machines.
185 */
186#define MACH_CLASSH 0x0000 /* Hopeless cases... */
187#define MACH_CLASSII 0x0001 /* MacII class */
188#define MACH_CLASSIIci 0x0004 /* Have RBV, but no Egret */
189#define MACH_CLASSIIsi 0x0005 /* Similar to IIci -- Have Egret. */
190#define MACH_CLASSIIvx 0x0006 /* Similar to IIsi -- different via2 emul? */
191#define MACH_CLASSLC 0x0007 /* Low-Cost/Performa/Wal-Mart Macs. */
192#define MACH_CLASSPB 0x0008 /* Powerbooks. Power management. */
193#define MACH_CLASSDUO 0x0009 /* Powerbooks Duos. More integration/Docks. */
194#define MACH_CLASSIIfx 0x0080 /* The IIfx is in a class by itself. */
195#define MACH_CLASSQ 0x0100 /* non-A/V Centris/Quadras. */
196#define MACH_CLASSAV 0x0101 /* A/V Centris/Quadras. */
197#define MACH_CLASSQ2 0x0102 /* More Centris/Quadras, different sccA. */
198#define MACH_CLASSP580 0x0103 /* Similar to Quadras, but not quite.. */
199
200#define MACH_68020 0
201#define MACH_68030 1
202#define MACH_68040 2
203#define MACH_PENTIUM 3 /* 66 and 99 MHz versions *only* */
204
205#ifdef _KERNEL
206struct mac68k_machine_S {
207 int cpu_model_index;
208 /*
209 * Misc. info from booter.
210 */
211 int machineid;
212 int mach_processor;
213 int mach_memsize;
214 int booter_version;
215 /*
216 * Debugging flags.
217 */
218 int do_graybars;
219 int serial_boot_echo;
220 int serial_console;
221
222 int zs_chip; /* what type of chip we've got */
223 int modem_flags;
224 int modem_cts_clk;
225 int modem_dcd_clk;
226 int modem_d_speed;
227 int print_flags;
228 int print_cts_clk;
229 int print_dcd_clk;
230 int print_d_speed;
231 /*
232 * Misc. hardware info.
233 */
234 int scsi80; /* Has NCR 5380 */
235 int scsi96; /* Has NCR 53C96 */
236 int scsi96_2; /* Has 2nd 53C96 */
237 int sonic; /* Has SONIC e-net */
238
239 int via1_ipl;
240 int via2_ipl;
241 int aux_interrupts;
242};
243
244 /* What kind of model is this */
245struct cpu_model_info {
246 int machineid; /* MacOS Gestalt value. */
247 const char *model_major; /* Make this distinction to save a few */
248 const char *model_minor; /* bytes--might be useful, too. */
249 int class; /* Rough class of machine. */
250 /* forwarded romvec_s is defined in mac68k/macrom.h */
251 struct romvec_s *rom_vectors; /* Pointer to our known rom vectors */
252};
253extern struct cpu_model_info *current_mac_model;
254
255extern unsigned long IOBase; /* Base address of I/O */
256extern unsigned long NuBusBase; /* Base address of NuBus */
257
258extern struct mac68k_machine_S mac68k_machine;
259extern unsigned long load_addr;
260#endif /* _KERNEL */
261
262/* physical memory sections */
263#define ROMBASE (0x40800000)
264#define ROMLEN (0x00200000) /* 2MB will work for all 68k */
265#define ROMMAPSIZE btoc(ROMLEN) /* 32k of page tables. */
266
267#define IIOMAPSIZE btoc(0x00100000) /* 1MB should be enough */
268
269/* XXX -- Need to do something about superspace.
270 * Technically, NuBus superspace starts at 0x60000000, but no
271 * known Macintosh has used any slot lower numbered than 9, and
272 * the super space is defined as 0xS000 0000 through 0xSFFF FFFF
273 * where S is the slot number--ranging from 0x9 - 0xE.
274 */
275#define NBSBASE 0x90000000
276#define NBSTOP 0xF0000000
277#define NBBASE 0xF9000000 /* NUBUS space */
278#define NBTOP 0xFF000000 /* NUBUS space */
279#define NBMAPSIZE btoc(NBTOP-NBBASE) /* ~ 96 megs */
280#define NBMEMSIZE 0x01000000 /* 16 megs per card */
281#define NBROMOFFSET 0x00FF0000 /* Last 64K == ROM */
282
283#ifdef _KERNEL
284
285/* machdep.c */
286void mac68k_set_bell_callback(int (*)(void *, int, int, int), void *);
287int mac68k_ring_bell(int, int, int);
288u_int get_mapping(void);
289
290/* locore.s functions */
291void loadustp(int);
292
293/* fpu.c */
294void initfpu(void);
295
296#endif
297
298#endif /* _CPU_MACHINE_ */