1 /* $NetBSD: cpu.h,v 1.21 1997/04/09 19:46:04 thorpej 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 * from: Utah $Hdr: cpu.h 1.16 91/03/25$ 41 * 42 * @(#)cpu.h 7.7 (Berkeley) 6/27/91 43 */ 44 45 #ifndef _MACHINE_CPU_H_ 46 #define _MACHINE_CPU_H_ 47 48 /* 49 * Exported definitions unique to atari/68k cpu support. 50 */ 51 52 /* 53 * Get common m68k CPU definitions. 54 */ 55 #include <m68k/cpu.h> 56 #define M68K_MMU_MOTOROLA 57 58 /* 59 * definitions of cpu-dependent requirements 60 * referenced in generic code 61 */ 62 #define cpu_swapin(p) /* nothing */ 63 #define cpu_wait(p) /* nothing */ 64 #define cpu_swapout(p) /* nothing */ 65 66 /* 67 * Arguments to hardclock and gatherstats encapsulate the previous 68 * machine state in an opaque clockframe. On the hp300, we use 69 * what the hardware pushes on an interrupt (frame format 0). 70 */ 71 struct clockframe { 72 u_int cf_regs[4]; /* d0,d1,a0,a1 (see locore.s) */ 73 u_short cf_sr; /* sr at time of interrupt */ 74 u_long cf_pc; /* pc at time of interrupt */ 75 u_short cf_vo; /* vector offset (4-word frame) */ 76 }; 77 78 #define CLKF_USERMODE(framep) (((framep)->cf_sr & PSL_S) == 0) 79 #define CLKF_BASEPRI(framep) (((framep)->cf_sr & PSL_IPL) == 0) 80 #define CLKF_PC(framep) ((framep)->cf_pc) 81 #if 0 82 /* We would like to do it this way... */ 83 #define CLKF_INTR(framep) (((framep)->cf_sr & PSL_M) == 0) 84 #else 85 /* but until we start using PSL_M, we have to do this instead */ 86 #define CLKF_INTR(framep) (0) /* XXX */ 87 #endif 88 89 90 /* 91 * Preempt the current process if in interrupt from user mode, 92 * or after the current trap/syscall if in system mode. 93 */ 94 #define need_resched() {want_resched = 1; setsoftast();} 95 96 /* 97 * Give a profiling tick to the current process from the softclock 98 * interrupt. On hp300, request an ast to send us through trap(), 99 * marking the proc as needing a profiling tick. 100 */ 101 #define profile_tick(p, framep) ((p)->p_flag |= P_OWEUPC, setsoftast()) 102 #define need_proftick(p) ((p)->p_flag |= P_OWEUPC, setsoftast()) 103 104 /* 105 * Notify the current process (p) that it has a signal pending, 106 * process as soon as possible. 107 */ 108 #define signotify(p) setsoftast() 109 110 #define setsoftast() (astpending = 1) 111 112 extern int astpending; /* need trap before returning to user mode */ 113 extern int want_resched; /* resched() was called */ 114 115 /* include support for software interrupts */ 116 #include <machine/mtpr.h> 117 118 /* 119 * The rest of this should probably be moved to ../atari/ataricpu.h, 120 * although some of it could probably be put into generic 68k headers. 121 */ 122 #define BASEPRI(sr) ((sr & PSL_IPL) == 0) 123 124 /* 125 * Values for machineid. 126 */ 127 #define ATARI_68000 1 /* 68000 CPU */ 128 #define ATARI_68010 (1<<1) /* 68010 CPU */ 129 #define ATARI_68020 (1L<<2) /* 68020 CPU */ 130 #define ATARI_68030 (1L<<3) /* 68030 CPU */ 131 #define ATARI_68040 (1L<<4) /* 68040 CPU */ 132 #define ATARI_TT (1L<<11) 133 #define ATARI_FALCON (1L<<12) 134 #define ATARI_HADES (1L<<13) 135 136 #define ATARI_CLKBROKEN (1L<<16) 137 138 #define ATARI_ANYCPU (ATARI_68000|ATARI_68010|ATARI_68020|ATARI_68030 \ 139 |ATARI_68040) 140 141 #define ATARI_ANYMACH (ATARI_TT|ATARI_FALCON|ATARI_HADES) 142 143 #ifdef _KERNEL 144 extern int machineid; 145 #endif 146 147 /* 148 * CTL_MACHDEP definitions. 149 */ 150 #define CPU_CONSDEV 1 /* dev_t: console terminal device */ 151 #define CPU_MAXID 2 /* number of valid machdep ids */ 152 153 #define CTL_MACHDEP_NAMES { \ 154 { 0, 0 }, \ 155 { "console_device", CTLTYPE_STRUCT }, \ 156 } 157 158 #ifdef _KERNEL 159 /* 160 * Prototypes from atari_init.c 161 */ 162 int cpu_dump __P((int (*)(dev_t, daddr_t, caddr_t, size_t), daddr_t *)); 163 int cpu_dumpsize __P((void)); 164 165 /* 166 * Prototypes from autoconf.c 167 */ 168 void configure __P((void)); 169 void config_console __P((void)); 170 171 /* 172 * Prototypes from clock.c 173 */ 174 long clkread __P((void)); 175 176 /* 177 * Prototypes from disksubr.c 178 */ 179 struct buf; 180 struct disklabel; 181 int bounds_check_with_label __P((struct buf *, struct disklabel *, int)); 182 183 /* 184 * Prototypes from fpu.c 185 */ 186 char *fpu_describe __P((int)); 187 int fpu_probe __P((void)); 188 189 /* 190 * Prototypes from vm_machdep.c 191 */ 192 int badbaddr __P((caddr_t, int)); 193 void consinit __P((void)); 194 void cpu_set_kpc __P((struct proc *, void (*)(struct proc *))); 195 void dumpconf __P((void)); 196 vm_offset_t kvtop __P((caddr_t)); 197 void physaccess __P((caddr_t, caddr_t, int, int)); 198 void physunaccess __P((caddr_t, int)); 199 void setredzone __P((u_int *, caddr_t)); 200 201 /* 202 * Prototypes from locore.s 203 */ 204 struct fpframe; 205 struct user; 206 struct pcb; 207 208 void clearseg __P((vm_offset_t)); 209 void doboot __P((void)); 210 u_long getdfc __P((void)); 211 u_long getsfc __P((void)); 212 void loadustp __P((int)); 213 void m68881_save __P((struct fpframe *)); 214 void m68881_restore __P((struct fpframe *)); 215 void physcopyseg __P((vm_offset_t, vm_offset_t)); 216 u_int probeva __P((u_int, u_int)); 217 void proc_trampoline __P((void)); 218 void savectx __P((struct pcb *)); 219 int suline __P((caddr_t, caddr_t)); 220 void switch_exit __P((struct proc *)); 221 void DCIAS __P((vm_offset_t)); 222 void DCIA __P((void)); 223 void DCIS __P((void)); 224 void DCIU __P((void)); 225 void ICIA __P((void)); 226 void ICPA __P((void)); 227 void PCIA __P((void)); 228 void TBIA __P((void)); 229 void TBIS __P((vm_offset_t)); 230 void TBIAS __P((void)); 231 void TBIAU __P((void)); 232 233 #if defined(M68040) || defined(M68060) 234 void DCFA __P((void)); 235 void DCFP __P((vm_offset_t)); 236 void DCFL __P((vm_offset_t)); 237 void DCPL __P((vm_offset_t)); 238 void DCPP __P((vm_offset_t)); 239 void ICPL __P((vm_offset_t)); 240 void ICPP __P((vm_offset_t)); 241 #endif 242 243 /* 244 * Prototypes from machdep.c: 245 */ 246 typedef void (*si_farg)(void *, void *); /* XXX */ 247 void add_sicallback __P((si_farg, void *, void *)); 248 void rem_sicallback __P((si_farg)); 249 void cpu_startup __P((void)); 250 void dumpsys __P((void)); 251 vm_offset_t reserve_dumppages __P((vm_offset_t)); 252 void softint __P((void)); 253 254 255 /* 256 * Prototypes from nvram.c: 257 */ 258 struct uio; 259 int nvram_uio __P((struct uio *)); 260 261 /* 262 * Prototypes from sys_machdep.c: 263 */ 264 int cachectl __P((int, caddr_t, int)); 265 int dma_cachectl __P((caddr_t, int)); 266 267 /* 268 * Prototypes from trap.c: 269 */ 270 #ifdef _MACHINE_FRAME_H_ /* XXX: We don't want to include this everywhere */ 271 void child_return __P((struct proc *, struct frame)); 272 #endif 273 274 #endif /* _KERNEL */ 275 #endif /* !_MACHINE_CPU_H_ */ 276