cpu.h revision 1.18
1 /* $NetBSD: cpu.h,v 1.18 2004/09/22 11:32:03 yamt 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 /* 83 * Exported definitions unique to news68k cpu support. 84 */ 85 86 #if defined(_KERNEL_OPT) 87 #include "opt_lockdebug.h" 88 #endif 89 90 /* 91 * Get common m68k CPU definitions. 92 */ 93 #include <m68k/cpu.h> 94 95 /* 96 * XXX news1700 L2 cache would be corrupted with DC_BE and IC_BE... 97 * XXX Should these be defined in machine/cpu.h? 98 */ 99 #undef CACHE_ON 100 #undef CACHE_CLR 101 #undef IC_CLEAR 102 #undef DC_CLEAR 103 #define CACHE_ON (DC_WA|DC_CLR|DC_ENABLE|IC_CLR|IC_ENABLE) 104 #define CACHE_CLR CACHE_ON 105 #define IC_CLEAR (DC_WA|DC_ENABLE|IC_CLR|IC_ENABLE) 106 #define DC_CLEAR (DC_WA|DC_CLR|DC_ENABLE|IC_ENABLE) 107 108 #define DCIC_CLR (DC_CLR|IC_CLR) 109 #define CACHE_BE (DC_BE|IC_BE) 110 111 /* 112 * Get interrupt glue. 113 */ 114 #include <machine/intr.h> 115 116 #include <sys/cpu_data.h> 117 struct cpu_info { 118 struct cpu_data ci_data; /* MI per-cpu data */ 119 }; 120 121 #ifdef _KERNEL 122 extern struct cpu_info cpu_info_store; 123 124 #define curcpu() (&cpu_info_store) 125 126 /* 127 * definitions of cpu-dependent requirements 128 * referenced in generic code 129 */ 130 #define cpu_swapin(p) /* nothing */ 131 #define cpu_swapout(p) /* nothing */ 132 #define cpu_number() 0 133 134 void cpu_proc_fork(struct proc *, struct proc *); 135 136 /* 137 * Arguments to hardclock and gatherstats encapsulate the previous 138 * machine state in an opaque clockframe. One the hp300, we use 139 * what the hardware pushes on an interrupt (frame format 0). 140 */ 141 struct clockframe { 142 u_short sr; /* sr at time of interrupt */ 143 u_long pc; /* pc at time of interrupt */ 144 u_short vo; /* vector offset (4-word frame) */ 145 }; 146 147 #define CLKF_USERMODE(framep) (((framep)->sr & PSL_S) == 0) 148 #define CLKF_BASEPRI(framep) (((framep)->sr & PSL_IPL) == 0) 149 #define CLKF_PC(framep) ((framep)->pc) 150 #if 0 151 /* We would like to do it this way... */ 152 #define CLKF_INTR(framep) (((framep)->sr & PSL_M) == 0) 153 #else 154 /* but until we start using PSL_M, we have to do this instead */ 155 #define CLKF_INTR(framep) (0) /* XXX */ 156 #endif 157 158 159 /* 160 * Preempt the current process if in interrupt from user mode, 161 * or after the current trap/syscall if in system mode. 162 */ 163 extern int want_resched; /* resched() was called */ 164 #define need_resched(ci) do { want_resched++; aston(); } while(0) 165 166 /* 167 * Give a profiling tick to the current process when the user profiling 168 * buffer pages are invalid. On the hp300, request an ast to send us 169 * through trap, marking the proc as needing a profiling tick. 170 */ 171 #define need_proftick(p) do { (p)->p_flag |= P_OWEUPC; aston(); } while(0) 172 173 /* 174 * Notify the current process (p) that it has a signal pending, 175 * process as soon as possible. 176 */ 177 #define signotify(p) aston() 178 179 extern int astpending; /* need to trap before returning to user mode */ 180 extern volatile u_char *ctrl_ast; 181 #define aston() do { astpending++; *ctrl_ast = 0xff; } while(0) 182 183 #endif /* _KERNEL */ 184 185 /* 186 * CTL_MACHDEP definitions. 187 */ 188 #define CPU_CONSDEV 1 /* dev_t: console terminal device */ 189 #define CPU_MAXID 2 /* number of valid machdep ids */ 190 191 #define CTL_MACHDEP_NAMES { \ 192 { 0, 0 }, \ 193 { "console_device", CTLTYPE_STRUCT }, \ 194 } 195 196 #ifdef _KERNEL 197 198 #if defined(news1700) || defined(news1200) 199 #ifndef M68030 200 #define M68030 201 #endif 202 #define M68K_MMU_MOTOROLA 203 #endif 204 205 #if defined(news1700) 206 #define CACHE_HAVE_PAC 207 #endif 208 209 #endif 210 211 #ifdef _KERNEL 212 extern int systype; 213 #define NEWS1700 0 214 #define NEWS1200 1 215 216 extern int cpuspeed; 217 extern char *intiobase, *intiolimit, *extiobase; 218 extern u_int intiobase_phys, intiotop_phys; 219 extern u_int extiobase_phys, extiotop_phys; 220 extern u_int intrcnt[]; 221 222 extern void (*vectab[])(void); 223 224 struct frame; 225 struct fpframe; 226 struct pcb; 227 228 /* locore.s functions */ 229 void m68881_save(struct fpframe *); 230 void m68881_restore(struct fpframe *); 231 232 int suline(caddr_t, caddr_t); 233 void savectx(struct pcb *); 234 void switch_exit(struct lwp *); 235 void switch_lwp_exit(struct lwp *); 236 void proc_trampoline(void); 237 void loadustp(int); 238 void badtrap(void); 239 void intrhand_vectored(void); 240 int getsr(void); 241 242 243 void doboot(int) 244 __attribute__((__noreturn__)); 245 void nmihand(struct frame *); 246 void ecacheon(void); 247 void ecacheoff(void); 248 249 /* machdep.c functions */ 250 int badaddr(caddr_t, int); 251 int badbaddr(caddr_t); 252 253 /* sys_machdep.c functions */ 254 int cachectl1(unsigned long, vaddr_t, size_t, struct proc *); 255 256 /* vm_machdep.c functions */ 257 void physaccess(caddr_t, caddr_t, int, int); 258 void physunaccess(caddr_t, int); 259 int kvtop(caddr_t); 260 261 #endif 262 263 /* physical memory sections */ 264 #define ROMBASE (0xe0000000) 265 266 #define INTIOBASE1700 (0xe0c00000) 267 #define INTIOTOP1700 (0xe1d00000) /* XXX */ 268 #define EXTIOBASE1700 (0xf0f00000) 269 #define EXTIOTOP1700 (0xf1000000) /* XXX */ 270 271 #define INTIOBASE1200 (0xe1000000) 272 #define INTIOTOP1200 (0xe1d00000) /* XXX */ 273 #define EXTIOBASE1200 (0xe4000000) 274 #define EXTIOTOP1200 (0xe4020000) /* XXX */ 275 276 #define MAXADDR (0xfffff000) 277 278 /* 279 * Internal IO space: 280 * 281 * Internal IO space is mapped in the kernel from ``intiobase'' to 282 * ``intiolimit'' (defined in locore.s). Since it is always mapped, 283 * conversion between physical and kernel virtual addresses is easy. 284 */ 285 #define ISIIOVA(va) \ 286 ((char *)(va) >= intiobase && (char *)(va) < intiolimit) 287 #define IIOV(pa) (((u_int)(pa) - intiobase_phys) + (u_int)intiobase) 288 #define ISIIOPA(pa) \ 289 ((u_int)(pa) >= intiobase_phys && (u_int)(pa) < intiotop_phys) 290 #define IIOP(va) (((u_int)(va) - (u_int)intiobase) + intiobase_phys) 291 #define IIOPOFF(pa) ((u_int)(pa) - intiobase_phys) 292 293 /* XXX EIO space mapping should be modified like hp300 XXX */ 294 #define EIOSIZE (extiotop_phys - extiobase_phys) 295 #define ISEIOVA(va) \ 296 ((char *)(va) >= extiobase && (char *)(va) < (char *)EIOSIZE) 297 #define EIOV(pa) (((u_int)(pa) - extiobase_phys) + (u_int)extiobase) 298 299 #if defined(CACHE_HAVE_PAC) || defined(CACHE_HAVE_VAC) 300 #define M68K_CACHEOPS_MACHDEP 301 #endif 302 303 #ifdef CACHE_HAVE_PAC 304 #define M68K_CACHEOPS_MACHDEP_PCIA 305 #endif 306 307 #ifdef CACHE_HAVE_VAC 308 #define M68K_CACHEOPS_MACHDEP_DCIA 309 #define M68K_CACHEOPS_MACHDEP_DCIS 310 #define M68K_CACHEOPS_MACHDEP_DCIU 311 #endif 312 313 #endif /* !_NEWS68K_CPU_H_ */ 314
Indexes created Fri Sep 26 20:09:58 GMT 2025