1 /* $NetBSD: cpu.h,v 1.45 2004/09/26 21:44:26 yamt Exp $ */ 2 3 /* 4 * Copyright (c) 1982, 1990 The Regents of the University of California. 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to Berkeley by 8 * the Systems Programming Group of the University of Utah Computer 9 * Science Department. 10 * 11 * Redistribution and use in source and binary forms, with or without 12 * modification, are permitted provided that the following conditions 13 * are met: 14 * 1. Redistributions of source code must retain the above copyright 15 * notice, this list of conditions and the following disclaimer. 16 * 2. Redistributions in binary form must reproduce the above copyright 17 * notice, this list of conditions and the following disclaimer in the 18 * documentation and/or other materials provided with the distribution. 19 * 3. Neither the name of the University nor the names of its contributors 20 * may be used to endorse or promote products derived from this software 21 * without specific prior written permission. 22 * 23 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 24 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 25 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 26 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 27 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 28 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 29 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 30 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 31 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 32 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 33 * SUCH DAMAGE. 34 * 35 * from: Utah $Hdr: cpu.h 1.16 91/03/25$ 36 * 37 * @(#)cpu.h 7.7 (Berkeley) 6/27/91 38 */ 39 /* 40 * Copyright (c) 1988 University of Utah. 41 * 42 * This code is derived from software contributed to Berkeley by 43 * the Systems Programming Group of the University of Utah Computer 44 * Science Department. 45 * 46 * Redistribution and use in source and binary forms, with or without 47 * modification, are permitted provided that the following conditions 48 * are met: 49 * 1. Redistributions of source code must retain the above copyright 50 * notice, this list of conditions and the following disclaimer. 51 * 2. Redistributions in binary form must reproduce the above copyright 52 * notice, this list of conditions and the following disclaimer in the 53 * documentation and/or other materials provided with the distribution. 54 * 3. All advertising materials mentioning features or use of this software 55 * must display the following acknowledgement: 56 * This product includes software developed by the University of 57 * California, Berkeley and its contributors. 58 * 4. Neither the name of the University nor the names of its contributors 59 * may be used to endorse or promote products derived from this software 60 * without specific prior written permission. 61 * 62 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 63 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 64 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 65 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 66 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 67 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 68 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 69 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 70 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 71 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 72 * SUCH DAMAGE. 73 * 74 * from: Utah $Hdr: cpu.h 1.16 91/03/25$ 75 * 76 * @(#)cpu.h 7.7 (Berkeley) 6/27/91 77 */ 78 79 #ifndef _MACHINE_CPU_H_ 80 #define _MACHINE_CPU_H_ 81 82 #if defined(_KERNEL) 83 84 /* 85 * Exported definitions unique to atari/68k cpu support. 86 */ 87 88 #if defined(_KERNEL_OPT) 89 #include "opt_lockdebug.h" 90 #endif 91 92 /* 93 * Get common m68k CPU definitions. 94 */ 95 #include <m68k/cpu.h> 96 #define M68K_MMU_MOTOROLA 97 98 #include <sys/cpu_data.h> 99 struct cpu_info { 100 struct cpu_data ci_data; /* MI per-cpu data */ 101 }; 102 103 extern struct cpu_info cpu_info_store; 104 105 #define curcpu() (&cpu_info_store) 106 107 /* 108 * definitions of cpu-dependent requirements 109 * referenced in generic code 110 */ 111 #define cpu_swapin(p) /* nothing */ 112 #define cpu_swapout(p) /* nothing */ 113 #define cpu_number() 0 114 115 void cpu_proc_fork(struct proc *, struct proc *); 116 117 /* 118 * Arguments to hardclock and gatherstats encapsulate the previous 119 * machine state in an opaque clockframe. On the hp300, we use 120 * what the hardware pushes on an interrupt (frame format 0). 121 */ 122 struct clockframe { 123 u_int cf_regs[4]; /* d0,d1,a0,a1 (see locore.s) */ 124 u_short cf_sr; /* sr at time of interrupt */ 125 u_long cf_pc; /* pc at time of interrupt */ 126 u_short cf_vo; /* vector offset (4-word frame) */ 127 } __attribute__((packed)); 128 129 #define CLKF_USERMODE(framep) (((framep)->cf_sr & PSL_S) == 0) 130 #define CLKF_BASEPRI(framep) (((framep)->cf_sr & PSL_IPL) == 0) 131 #define CLKF_PC(framep) ((framep)->cf_pc) 132 #if 0 133 /* We would like to do it this way... */ 134 #define CLKF_INTR(framep) (((framep)->cf_sr & PSL_M) == 0) 135 #else 136 /* but until we start using PSL_M, we have to do this instead */ 137 #define CLKF_INTR(framep) (0) /* XXX */ 138 #endif 139 140 141 /* 142 * Preempt the current process if in interrupt from user mode, 143 * or after the current trap/syscall if in system mode. 144 */ 145 #define need_resched(ci) {want_resched = 1; setsoftast();} 146 147 /* 148 * Give a profiling tick to the current process from the softclock 149 * interrupt. On hp300, request an ast to send us through trap(), 150 * marking the proc as needing a profiling tick. 151 */ 152 #define profile_tick(p, framep) ((p)->p_flag |= P_OWEUPC, setsoftast()) 153 #define need_proftick(p) ((p)->p_flag |= P_OWEUPC, setsoftast()) 154 155 /* 156 * Notify the current process (p) that it has a signal pending, 157 * process as soon as possible. 158 */ 159 #define signotify(p) setsoftast() 160 161 #define setsoftast() (astpending = 1) 162 163 extern int astpending; /* need trap before returning to user mode */ 164 extern int want_resched; /* resched() was called */ 165 166 /* include support for software interrupts */ 167 #include <machine/mtpr.h> 168 169 /* 170 * The rest of this should probably be moved to ../atari/ataricpu.h, 171 * although some of it could probably be put into generic 68k headers. 172 */ 173 #define BASEPRI(sr) ((sr & PSL_IPL) == 0) 174 #endif /* _KERNEL */ 175 176 /* 177 * Values for machineid. 178 */ 179 #define ATARI_68000 1 /* 68000 CPU */ 180 #define ATARI_68010 (1<<1) /* 68010 CPU */ 181 #define ATARI_68020 (1L<<2) /* 68020 CPU */ 182 #define ATARI_68030 (1L<<3) /* 68030 CPU */ 183 #define ATARI_68040 (1L<<4) /* 68040 CPU */ 184 #define ATARI_68060 (1L<<6) /* 68060 CPU */ 185 #define ATARI_TT (1L<<11) /* This is a TT030 */ 186 #define ATARI_FALCON (1L<<12) /* Falcon */ 187 #define ATARI_HADES (1L<<13) /* Hades */ 188 #define ATARI_MILAN (1L<<14) /* Milan */ 189 190 #define ATARI_CLKBROKEN (1L<<16) 191 192 #define ATARI_ANYCPU (ATARI_68000|ATARI_68010|ATARI_68020|ATARI_68030 \ 193 |ATARI_68040|ATARI_68060) 194 195 #define ATARI_ANYMACH (ATARI_TT|ATARI_FALCON|ATARI_HADES|ATARI_MILAN) 196 197 #if defined(_KERNEL) 198 extern int machineid; 199 #endif /* _KERNEL */ 200 201 /* 202 * CTL_MACHDEP definitions. 203 */ 204 #define CPU_CONSDEV 1 /* dev_t: console terminal device */ 205 #define CPU_MAXID 2 /* number of valid machdep ids */ 206 207 #define CTL_MACHDEP_NAMES { \ 208 { 0, 0 }, \ 209 { "console_device", CTLTYPE_STRUCT }, \ 210 } 211 212 #ifdef _KERNEL 213 /* 214 * Prototypes from atari_init.c 215 */ 216 int cpu_dump __P((int (*)(dev_t, daddr_t, caddr_t, size_t), daddr_t *)); 217 int cpu_dumpsize __P((void)); 218 219 /* 220 * Prototypes from autoconf.c 221 */ 222 void config_console __P((void)); 223 224 /* 225 * Prototypes from clock.c 226 */ 227 long clkread __P((void)); 228 229 /* 230 * Prototypes from fpu.c 231 */ 232 char *fpu_describe __P((int)); 233 int fpu_probe __P((void)); 234 235 /* 236 * Prototypes from vm_machdep.c 237 */ 238 int badbaddr __P((caddr_t, int)); 239 void consinit __P((void)); 240 void dumpconf __P((void)); 241 int kvtop __P((caddr_t)); 242 void physaccess __P((caddr_t, caddr_t, int, int)); 243 void physunaccess __P((caddr_t, int)); 244 void setredzone __P((u_int *, caddr_t)); 245 246 /* 247 * Prototypes from locore.s 248 */ 249 struct fpframe; 250 struct user; 251 struct pcb; 252 253 void clearseg __P((paddr_t)); 254 void doboot __P((void)); 255 void loadustp __P((int)); 256 void m68881_save __P((struct fpframe *)); 257 void m68881_restore __P((struct fpframe *)); 258 void physcopyseg __P((paddr_t, paddr_t)); 259 u_int probeva __P((u_int, u_int)); 260 void proc_trampoline __P((void)); 261 void savectx __P((struct pcb *)); 262 int suline __P((caddr_t, caddr_t)); 263 void switch_exit __P((struct lwp *)); 264 void switch_lwp_exit __P((struct lwp *)); 265 266 /* 267 * Prototypes from machdep.c: 268 */ 269 typedef void (*si_farg)(void *, void *); /* XXX */ 270 void add_sicallback __P((si_farg, void *, void *)); 271 void rem_sicallback __P((si_farg)); 272 void cpu_startup __P((void)); 273 void dumpsys __P((void)); 274 vaddr_t reserve_dumppages __P((vaddr_t)); 275 void softint __P((void)); 276 277 278 /* 279 * Prototypes from nvram.c: 280 */ 281 struct uio; 282 int nvram_uio __P((struct uio *)); 283 284 /* 285 * Prototypes from sys_machdep.c: 286 */ 287 int cachectl1 __P((unsigned long, vaddr_t, size_t, struct proc *)); 288 int dma_cachectl __P((caddr_t, int)); 289 290 /* 291 * Prototypes from pci_machdep.c 292 */ 293 void init_pci_bus __P((void)); 294 295 #endif /* _KERNEL */ 296 #endif /* !_MACHINE_CPU_H_ */ 297