1 /* $NetBSD: cpu.h,v 1.64 2009/11/23 00:11:43 rmind 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 cpuid_t ci_cpuid; 102 int ci_want_resched; 103 int ci_mtx_count; 104 int ci_mtx_oldspl; 105 }; 106 107 extern struct cpu_info cpu_info_store; 108 109 #define curcpu() (&cpu_info_store) 110 111 /* 112 * definitions of cpu-dependent requirements 113 * referenced in generic code 114 */ 115 #define cpu_number() 0 116 117 void cpu_proc_fork(struct proc *, struct proc *); 118 119 /* 120 * Arguments to hardclock and gatherstats encapsulate the previous 121 * machine state in an opaque clockframe. On the hp300, we use 122 * what the hardware pushes on an interrupt (frame format 0). 123 */ 124 struct clockframe { 125 u_int cf_regs[4]; /* d0,d1,a0,a1 (see locore.s) */ 126 u_short cf_sr; /* sr at time of interrupt */ 127 u_long cf_pc; /* pc at time of interrupt */ 128 u_short cf_vo; /* vector offset (4-word frame) */ 129 } __attribute__((packed)); 130 131 #define CLKF_USERMODE(framep) (((framep)->cf_sr & PSL_S) == 0) 132 #define CLKF_PC(framep) ((framep)->cf_pc) 133 #if 0 134 /* We would like to do it this way... */ 135 #define CLKF_INTR(framep) (((framep)->cf_sr & PSL_M) == 0) 136 #else 137 /* but until we start using PSL_M, we have to do this instead */ 138 #define CLKF_INTR(framep) (0) /* XXX */ 139 #endif 140 141 142 /* 143 * Preempt the current process if in interrupt from user mode, 144 * or after the current trap/syscall if in system mode. 145 */ 146 #define cpu_need_resched(ci,flags) {ci->ci_want_resched = 1; setsoftast();} 147 148 /* 149 * Give a profiling tick to the current process from the softclock 150 * interrupt. On hp300, request an ast to send us through trap(), 151 * marking the proc as needing a profiling tick. 152 */ 153 #define profile_tick(l, framep) ((l)->l_pflag |= LP_OWEUPC, setsoftast()) 154 #define cpu_need_proftick(l) ((l)->l_pflag |= LP_OWEUPC, setsoftast()) 155 156 /* 157 * Notify the current process (p) that it has a signal pending, 158 * process as soon as possible. 159 */ 160 #define cpu_signotify(l) setsoftast() 161 162 #define setsoftast() (astpending = 1) 163 164 extern int astpending; /* need trap before returning to user mode */ 165 166 /* 167 * The rest of this should probably be moved to ../atari/ataricpu.h, 168 * although some of it could probably be put into generic 68k headers. 169 */ 170 #define BASEPRI(sr) ((sr & PSL_IPL) == 0) 171 #endif /* _KERNEL */ 172 173 /* 174 * Values for machineid. 175 */ 176 #define ATARI_68000 1 /* 68000 CPU */ 177 #define ATARI_68010 (1<<1) /* 68010 CPU */ 178 #define ATARI_68020 (1L<<2) /* 68020 CPU */ 179 #define ATARI_68030 (1L<<3) /* 68030 CPU */ 180 #define ATARI_68040 (1L<<4) /* 68040 CPU */ 181 #define ATARI_68060 (1L<<6) /* 68060 CPU */ 182 #define ATARI_TT (1L<<11) /* This is a TT030 */ 183 #define ATARI_FALCON (1L<<12) /* Falcon */ 184 #define ATARI_HADES (1L<<13) /* Hades */ 185 #define ATARI_MILAN (1L<<14) /* Milan */ 186 187 #define ATARI_CLKBROKEN (1L<<16) 188 189 #define ATARI_ANYCPU (ATARI_68000|ATARI_68010|ATARI_68020|ATARI_68030 \ 190 |ATARI_68040|ATARI_68060) 191 192 #define ATARI_ANYMACH (ATARI_TT|ATARI_FALCON|ATARI_HADES|ATARI_MILAN) 193 194 #if defined(_KERNEL) 195 extern int machineid; 196 #endif /* _KERNEL */ 197 198 /* 199 * CTL_MACHDEP definitions. 200 */ 201 #define CPU_CONSDEV 1 /* dev_t: console terminal device */ 202 #define CPU_MAXID 2 /* number of valid machdep ids */ 203 204 #ifdef _KERNEL 205 /* 206 * Prototypes from atari_init.c 207 */ 208 int cpu_dump(int (*)(dev_t, daddr_t, void *, size_t), daddr_t *); 209 int cpu_dumpsize(void); 210 211 /* 212 * Prototypes from autoconf.c 213 */ 214 void config_console(void); 215 216 /* 217 * Prototypes from fpu.c 218 */ 219 const char *fpu_describe(int); 220 int fpu_probe(void); 221 222 /* 223 * Prototypes from locore.s 224 */ 225 struct fpframe; 226 227 void clearseg(paddr_t); 228 void doboot(void); 229 void loadustp(int); 230 void m68881_save(struct fpframe *); 231 void m68881_restore(struct fpframe *); 232 void physcopyseg(paddr_t, paddr_t); 233 u_int probeva(u_int, u_int); 234 int suline(void *, void *); 235 236 /* 237 * Prototypes from machdep.c: 238 */ 239 int badbaddr(void *, int); 240 void consinit(void); 241 typedef void (*si_farg)(void *, void *); /* XXX */ 242 void init_sicallback(void); /* XXX */ 243 void add_sicallback(si_farg, void *, void *); 244 void rem_sicallback(si_farg); 245 void dumpsys(void); 246 vaddr_t reserve_dumppages(vaddr_t); 247 248 249 /* 250 * Prototypes from nvram.c: 251 */ 252 struct uio; 253 int nvram_uio(struct uio *); 254 255 /* 256 * Prototypes from pci_machdep.c 257 */ 258 void init_pci_bus(void); 259 260 #endif /* _KERNEL */ 261 #endif /* !_MACHINE_CPU_H_ */ 262