cpu.h revision 1.36
1 /* $NetBSD: cpu.h,v 1.36 2010/06/06 04:50:07 mrg Exp $ */ 2 3 /* 4 * Copyright (c) 1982, 1990, 1993 5 * The Regents of the University of California. 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 8.4 (Berkeley) 1/5/94 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 8.4 (Berkeley) 1/5/94 77 */ 78 79 #ifndef _NEWS68K_CPU_H_ 80 #define _NEWS68K_CPU_H_ 81 82 #if defined(_KERNEL) 83 84 /* 85 * Exported definitions unique to news68k cpu support. 86 */ 87 88 #if defined(_KERNEL_OPT) 89 #include "opt_lockdebug.h" 90 #include "opt_m68k_arch.h" 91 #endif 92 93 /* 94 * Get common m68k CPU definitions. 95 */ 96 #include <m68k/cpu.h> 97 98 /* 99 * XXX news1700 L2 cache would be corrupted with DC_BE and IC_BE... 100 * XXX Should these be defined in machine/cpu.h? 101 */ 102 #undef CACHE_ON 103 #undef CACHE_CLR 104 #undef IC_CLEAR 105 #undef DC_CLEAR 106 #define CACHE_ON (DC_WA|DC_CLR|DC_ENABLE|IC_CLR|IC_ENABLE) 107 #define CACHE_CLR CACHE_ON 108 #define IC_CLEAR (DC_WA|DC_ENABLE|IC_CLR|IC_ENABLE) 109 #define DC_CLEAR (DC_WA|DC_CLR|DC_ENABLE|IC_ENABLE) 110 111 #define DCIC_CLR (DC_CLR|IC_CLR) 112 #define CACHE_BE (DC_BE|IC_BE) 113 114 /* 115 * Get interrupt glue. 116 */ 117 #include <machine/intr.h> 118 119 #include <sys/cpu_data.h> 120 struct cpu_info { 121 struct cpu_data ci_data; /* MI per-cpu data */ 122 cpuid_t ci_cpuid; 123 int ci_mtx_count; 124 int ci_mtx_oldspl; 125 int ci_want_resched; 126 }; 127 128 extern struct cpu_info cpu_info_store; 129 130 #define curcpu() (&cpu_info_store) 131 132 /* 133 * definitions of cpu-dependent requirements 134 * referenced in generic code 135 */ 136 #define cpu_number() 0 137 138 void cpu_proc_fork(struct proc *, struct proc *); 139 140 /* 141 * Arguments to hardclock and gatherstats encapsulate the previous 142 * machine state in an opaque clockframe. One the hp300, we use 143 * what the hardware pushes on an interrupt (frame format 0). 144 */ 145 struct clockframe { 146 u_short sr; /* sr at time of interrupt */ 147 u_long pc; /* pc at time of interrupt */ 148 u_short vo; /* vector offset (4-word frame) */ 149 }; 150 151 #define CLKF_USERMODE(framep) (((framep)->sr & PSL_S) == 0) 152 #define CLKF_PC(framep) ((framep)->pc) 153 #if 0 154 /* We would like to do it this way... */ 155 #define CLKF_INTR(framep) (((framep)->sr & PSL_M) == 0) 156 #else 157 /* but until we start using PSL_M, we have to do this instead */ 158 #include <machine/intr.h> 159 #define CLKF_INTR(framep) (idepth > 1) /* XXX */ 160 #endif 161 162 163 /* 164 * Preempt the current process if in interrupt from user mode, 165 * or after the current trap/syscall if in system mode. 166 */ 167 #define cpu_need_resched(ci, flags) \ 168 do { ci->ci_want_resched = 1; aston(); } while (/* CONSTCOND */0) 169 170 /* 171 * Give a profiling tick to the current process when the user profiling 172 * buffer pages are invalid. On the hp300, request an ast to send us 173 * through trap, marking the proc as needing a profiling tick. 174 */ 175 #define cpu_need_proftick(l) \ 176 do { (l)->l_pflag |= LP_OWEUPC; aston(); } while (/* CONSTCOND */0) 177 178 /* 179 * Notify the current process (p) that it has a signal pending, 180 * process as soon as possible. 181 */ 182 #define cpu_signotify(l) aston() 183 184 extern int astpending; /* need to trap before returning to user mode */ 185 extern volatile u_char *ctrl_ast; 186 #define aston() \ 187 do { astpending++; *ctrl_ast = 0xff; } while (/* CONSTCOND */0) 188 189 #endif /* _KERNEL */ 190 191 /* 192 * CTL_MACHDEP definitions. 193 */ 194 #define CPU_CONSDEV 1 /* dev_t: console terminal device */ 195 #define CPU_MAXID 2 /* number of valid machdep ids */ 196 197 #ifdef _KERNEL 198 199 #if defined(news1700) || defined(news1200) 200 #ifndef M68030 201 #define M68030 202 #endif 203 #define M68K_MMU_MOTOROLA 204 #endif 205 206 #if defined(news1700) 207 #define CACHE_HAVE_PAC 208 #endif 209 210 #endif 211 212 #ifdef _KERNEL 213 extern int systype; 214 #define NEWS1700 0 215 #define NEWS1200 1 216 217 extern int cpuspeed; 218 extern char *intiobase, *intiolimit, *extiobase; 219 extern u_int intiobase_phys, intiotop_phys; 220 extern u_int extiobase_phys, extiotop_phys; 221 extern u_int intrcnt[]; 222 223 extern void (*vectab[])(void); 224 225 struct frame; 226 struct fpframe; 227 228 /* locore.s functions */ 229 void m68881_save(struct fpframe *); 230 void m68881_restore(struct fpframe *); 231 232 int suline(void *, void *); 233 void loadustp(int); 234 void badtrap(void); 235 void intrhand_vectored(void); 236 int getsr(void); 237 238 239 void doboot(int) 240 __attribute__((__noreturn__)); 241 void nmihand(struct frame *); 242 void ecacheon(void); 243 void ecacheoff(void); 244 245 /* machdep.c functions */ 246 int badaddr(void *, int); 247 int badbaddr(void *); 248 249 #endif 250 251 /* physical memory sections */ 252 #define ROMBASE 0xe0000000 253 254 #define INTIOBASE1700 0xe0c00000 255 #define INTIOTOP1700 0xe1d00000 /* XXX */ 256 #define EXTIOBASE1700 0xf0f00000 257 #define EXTIOTOP1700 0xf1000000 /* XXX */ 258 #define CTRL_POWER1700 0xe1380000 259 #define CTRL_LED1700 0xe0dc0000 260 261 #define INTIOBASE1200 0xe1000000 262 #define INTIOTOP1200 0xe1d00000 /* XXX */ 263 #define EXTIOBASE1200 0xe4000000 264 #define EXTIOTOP1200 0xe4020000 /* XXX */ 265 #define CTRL_POWER1200 0xe1000000 266 #define CTRL_LED1200 0xe1500001 267 268 #define MAXADDR 0xfffff000 269 270 /* 271 * Internal IO space: 272 * 273 * Internal IO space is mapped in the kernel from ``intiobase'' to 274 * ``intiolimit'' (defined in locore.s). Since it is always mapped, 275 * conversion between physical and kernel virtual addresses is easy. 276 */ 277 #define ISIIOVA(va) \ 278 ((char *)(va) >= intiobase && (char *)(va) < intiolimit) 279 #define IIOV(pa) (((u_int)(pa) - intiobase_phys) + (u_int)intiobase) 280 #define ISIIOPA(pa) \ 281 ((u_int)(pa) >= intiobase_phys && (u_int)(pa) < intiotop_phys) 282 #define IIOP(va) (((u_int)(va) - (u_int)intiobase) + intiobase_phys) 283 #define IIOPOFF(pa) ((u_int)(pa) - intiobase_phys) 284 285 /* XXX EIO space mapping should be modified like hp300 XXX */ 286 #define EIOSIZE (extiotop_phys - extiobase_phys) 287 #define ISEIOVA(va) \ 288 ((char *)(va) >= extiobase && (char *)(va) < (char *)EIOSIZE) 289 #define EIOV(pa) (((u_int)(pa) - extiobase_phys) + (u_int)extiobase) 290 291 #if defined(CACHE_HAVE_PAC) || defined(CACHE_HAVE_VAC) 292 #define M68K_CACHEOPS_MACHDEP 293 #endif 294 295 #ifdef CACHE_HAVE_PAC 296 #define M68K_CACHEOPS_MACHDEP_PCIA 297 #endif 298 299 #ifdef CACHE_HAVE_VAC 300 #define M68K_CACHEOPS_MACHDEP_DCIA 301 #define M68K_CACHEOPS_MACHDEP_DCIS 302 #define M68K_CACHEOPS_MACHDEP_DCIU 303 #endif 304 305 #endif /* !_NEWS68K_CPU_H_ */ 306
Indexes created Fri Sep 26 20:09:58 GMT 2025