1 /* $NetBSD: cpu.h,v 1.40 2003/01/17 22:34:22 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 #if defined(_KERNEL_OPT) 53 #include "opt_lockdebug.h" 54 #endif 55 56 /* 57 * Get common m68k CPU definitions. 58 */ 59 #include <m68k/cpu.h> 60 #define M68K_MMU_MOTOROLA 61 62 #include <sys/sched.h> 63 struct cpu_info { 64 struct schedstate_percpu ci_schedstate; /* scheduler state */ 65 #if defined(DIAGNOSTIC) || defined(LOCKDEBUG) 66 u_long ci_spin_locks; /* # of spin locks held */ 67 u_long ci_simple_locks; /* # of simple locks held */ 68 #endif 69 }; 70 71 #ifdef _KERNEL 72 extern struct cpu_info cpu_info_store; 73 74 #define curcpu() (&cpu_info_store) 75 76 /* 77 * definitions of cpu-dependent requirements 78 * referenced in generic code 79 */ 80 #define cpu_swapin(p) /* nothing */ 81 #define cpu_wait(p) /* nothing */ 82 #define cpu_swapout(p) /* nothing */ 83 #define cpu_number() 0 84 85 void cpu_proc_fork(struct proc *, struct proc *); 86 87 /* 88 * Arguments to hardclock and gatherstats encapsulate the previous 89 * machine state in an opaque clockframe. On the hp300, we use 90 * what the hardware pushes on an interrupt (frame format 0). 91 */ 92 struct clockframe { 93 u_int cf_regs[4]; /* d0,d1,a0,a1 (see locore.s) */ 94 u_short cf_sr; /* sr at time of interrupt */ 95 u_long cf_pc; /* pc at time of interrupt */ 96 u_short cf_vo; /* vector offset (4-word frame) */ 97 } __attribute__((packed)); 98 99 #define CLKF_USERMODE(framep) (((framep)->cf_sr & PSL_S) == 0) 100 #define CLKF_BASEPRI(framep) (((framep)->cf_sr & PSL_IPL) == 0) 101 #define CLKF_PC(framep) ((framep)->cf_pc) 102 #if 0 103 /* We would like to do it this way... */ 104 #define CLKF_INTR(framep) (((framep)->cf_sr & PSL_M) == 0) 105 #else 106 /* but until we start using PSL_M, we have to do this instead */ 107 #define CLKF_INTR(framep) (0) /* XXX */ 108 #endif 109 110 111 /* 112 * Preempt the current process if in interrupt from user mode, 113 * or after the current trap/syscall if in system mode. 114 */ 115 #define need_resched(ci) {want_resched = 1; setsoftast();} 116 117 /* 118 * Give a profiling tick to the current process from the softclock 119 * interrupt. On hp300, request an ast to send us through trap(), 120 * marking the proc as needing a profiling tick. 121 */ 122 #define profile_tick(p, framep) ((p)->p_flag |= P_OWEUPC, setsoftast()) 123 #define need_proftick(p) ((p)->p_flag |= P_OWEUPC, setsoftast()) 124 125 /* 126 * Notify the current process (p) that it has a signal pending, 127 * process as soon as possible. 128 */ 129 #define signotify(p) setsoftast() 130 131 #define setsoftast() (astpending = 1) 132 133 extern int astpending; /* need trap before returning to user mode */ 134 extern int want_resched; /* resched() was called */ 135 136 #endif /* _KERNEL */ 137 138 /* include support for software interrupts */ 139 #include <machine/mtpr.h> 140 141 /* 142 * The rest of this should probably be moved to ../atari/ataricpu.h, 143 * although some of it could probably be put into generic 68k headers. 144 */ 145 #define BASEPRI(sr) ((sr & PSL_IPL) == 0) 146 147 /* 148 * Values for machineid. 149 */ 150 #define ATARI_68000 1 /* 68000 CPU */ 151 #define ATARI_68010 (1<<1) /* 68010 CPU */ 152 #define ATARI_68020 (1L<<2) /* 68020 CPU */ 153 #define ATARI_68030 (1L<<3) /* 68030 CPU */ 154 #define ATARI_68040 (1L<<4) /* 68040 CPU */ 155 #define ATARI_68060 (1L<<6) /* 68060 CPU */ 156 #define ATARI_TT (1L<<11) /* This is a TT030 */ 157 #define ATARI_FALCON (1L<<12) /* Falcon */ 158 #define ATARI_HADES (1L<<13) /* Hades */ 159 #define ATARI_MILAN (1L<<14) /* Milan */ 160 161 #define ATARI_CLKBROKEN (1L<<16) 162 163 #define ATARI_ANYCPU (ATARI_68000|ATARI_68010|ATARI_68020|ATARI_68030 \ 164 |ATARI_68040|ATARI_68060) 165 166 #define ATARI_ANYMACH (ATARI_TT|ATARI_FALCON|ATARI_HADES|ATARI_MILAN) 167 168 #ifdef _KERNEL 169 extern int machineid; 170 #endif 171 172 /* 173 * CTL_MACHDEP definitions. 174 */ 175 #define CPU_CONSDEV 1 /* dev_t: console terminal device */ 176 #define CPU_MAXID 2 /* number of valid machdep ids */ 177 178 #define CTL_MACHDEP_NAMES { \ 179 { 0, 0 }, \ 180 { "console_device", CTLTYPE_STRUCT }, \ 181 } 182 183 #ifdef _KERNEL 184 /* 185 * Prototypes from atari_init.c 186 */ 187 int cpu_dump __P((int (*)(dev_t, daddr_t, caddr_t, size_t), daddr_t *)); 188 int cpu_dumpsize __P((void)); 189 190 /* 191 * Prototypes from autoconf.c 192 */ 193 void config_console __P((void)); 194 195 /* 196 * Prototypes from clock.c 197 */ 198 long clkread __P((void)); 199 200 /* 201 * Prototypes from disksubr.c 202 */ 203 struct buf; 204 struct disklabel; 205 int bounds_check_with_label __P((struct buf *, struct disklabel *, int)); 206 207 /* 208 * Prototypes from fpu.c 209 */ 210 char *fpu_describe __P((int)); 211 int fpu_probe __P((void)); 212 213 /* 214 * Prototypes from vm_machdep.c 215 */ 216 int badbaddr __P((caddr_t, int)); 217 void consinit __P((void)); 218 void dumpconf __P((void)); 219 int kvtop __P((caddr_t)); 220 void physaccess __P((caddr_t, caddr_t, int, int)); 221 void physunaccess __P((caddr_t, int)); 222 void setredzone __P((u_int *, caddr_t)); 223 224 /* 225 * Prototypes from locore.s 226 */ 227 struct fpframe; 228 struct user; 229 struct pcb; 230 231 void clearseg __P((paddr_t)); 232 void doboot __P((void)); 233 void loadustp __P((int)); 234 void m68881_save __P((struct fpframe *)); 235 void m68881_restore __P((struct fpframe *)); 236 void physcopyseg __P((paddr_t, paddr_t)); 237 u_int probeva __P((u_int, u_int)); 238 void proc_trampoline __P((void)); 239 void savectx __P((struct pcb *)); 240 int suline __P((caddr_t, caddr_t)); 241 void switch_exit __P((struct lwp *)); 242 void switch_lwp_exit __P((struct lwp *)); 243 244 /* 245 * Prototypes from machdep.c: 246 */ 247 typedef void (*si_farg)(void *, void *); /* XXX */ 248 void add_sicallback __P((si_farg, void *, void *)); 249 void rem_sicallback __P((si_farg)); 250 void cpu_startup __P((void)); 251 void dumpsys __P((void)); 252 vaddr_t reserve_dumppages __P((vaddr_t)); 253 void softint __P((void)); 254 255 256 /* 257 * Prototypes from nvram.c: 258 */ 259 struct uio; 260 int nvram_uio __P((struct uio *)); 261 262 /* 263 * Prototypes from sys_machdep.c: 264 */ 265 int cachectl1 __P((unsigned long, vaddr_t, size_t, struct proc *)); 266 int dma_cachectl __P((caddr_t, int)); 267 268 /* 269 * Prototypes from pci_machdep.c 270 */ 271 void init_pci_bus __P((void)); 272 273 #endif /* _KERNEL */ 274 #endif /* !_MACHINE_CPU_H_ */ 275