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 */ 88 struct 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() 119 120 extern 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 206 struct 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 */ 245 struct 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 }; 253 extern struct cpu_model_info *current_mac_model; 254 255 extern unsigned long IOBase; /* Base address of I/O */ 256 extern unsigned long NuBusBase; /* Base address of NuBus */ 257 258 extern struct mac68k_machine_S mac68k_machine; 259 extern 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 */ 286 void mac68k_set_bell_callback(int (*)(void *, int, int, int), void *); 287 int mac68k_ring_bell(int, int, int); 288 u_int get_mapping(void); 289 290 /* locore.s functions */ 291 void loadustp(int); 292 293 /* fpu.c */ 294 void initfpu(void); 295 296 #endif 297 298 #endif /* _CPU_MACHINE_ */ 299