cpu.h revision 1.22
1 /* $NetBSD: cpu.h,v 1.22 2004/12/15 17:22:11 tsutsui 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 #endif 91 92 /* 93 * Get common m68k CPU definitions. 94 */ 95 #include <m68k/cpu.h> 96 97 /* 98 * XXX news1700 L2 cache would be corrupted with DC_BE and IC_BE... 99 * XXX Should these be defined in machine/cpu.h? 100 */ 101 #undef CACHE_ON 102 #undef CACHE_CLR 103 #undef IC_CLEAR 104 #undef DC_CLEAR 105 #define CACHE_ON (DC_WA|DC_CLR|DC_ENABLE|IC_CLR|IC_ENABLE) 106 #define CACHE_CLR CACHE_ON 107 #define IC_CLEAR (DC_WA|DC_ENABLE|IC_CLR|IC_ENABLE) 108 #define DC_CLEAR (DC_WA|DC_CLR|DC_ENABLE|IC_ENABLE) 109 110 #define DCIC_CLR (DC_CLR|IC_CLR) 111 #define CACHE_BE (DC_BE|IC_BE) 112 113 /* 114 * Get interrupt glue. 115 */ 116 #include <machine/intr.h> 117 118 #include <sys/cpu_data.h> 119 struct cpu_info { 120 struct cpu_data ci_data; /* MI per-cpu data */ 121 }; 122 123 extern struct cpu_info cpu_info_store; 124 125 #define curcpu() (&cpu_info_store) 126 127 /* 128 * definitions of cpu-dependent requirements 129 * referenced in generic code 130 */ 131 #define cpu_swapin(p) /* nothing */ 132 #define cpu_swapout(p) /* nothing */ 133 #define cpu_number() 0 134 135 void cpu_proc_fork(struct proc *, struct proc *); 136 137 /* 138 * Arguments to hardclock and gatherstats encapsulate the previous 139 * machine state in an opaque clockframe. One the hp300, we use 140 * what the hardware pushes on an interrupt (frame format 0). 141 */ 142 struct clockframe { 143 u_short sr; /* sr at time of interrupt */ 144 u_long pc; /* pc at time of interrupt */ 145 u_short vo; /* vector offset (4-word frame) */ 146 }; 147 148 #define CLKF_USERMODE(framep) (((framep)->sr & PSL_S) == 0) 149 #define CLKF_BASEPRI(framep) (((framep)->sr & PSL_IPL) == 0) 150 #define CLKF_PC(framep) ((framep)->pc) 151 #if 0 152 /* We would like to do it this way... */ 153 #define CLKF_INTR(framep) (((framep)->sr & PSL_M) == 0) 154 #else 155 /* but until we start using PSL_M, we have to do this instead */ 156 #define CLKF_INTR(framep) (0) /* XXX */ 157 #endif 158 159 160 /* 161 * Preempt the current process if in interrupt from user mode, 162 * or after the current trap/syscall if in system mode. 163 */ 164 extern int want_resched; /* resched() was called */ 165 #define need_resched(ci) do { want_resched++; aston(); } while(0) 166 167 /* 168 * Give a profiling tick to the current process when the user profiling 169 * buffer pages are invalid. On the hp300, request an ast to send us 170 * through trap, marking the proc as needing a profiling tick. 171 */ 172 #define need_proftick(p) do { (p)->p_flag |= P_OWEUPC; aston(); } while(0) 173 174 /* 175 * Notify the current process (p) that it has a signal pending, 176 * process as soon as possible. 177 */ 178 #define signotify(p) aston() 179 180 extern int astpending; /* need to trap before returning to user mode */ 181 extern volatile u_char *ctrl_ast; 182 #define aston() do { astpending++; *ctrl_ast = 0xff; } while(0) 183 184 #endif /* _KERNEL */ 185 186 /* 187 * CTL_MACHDEP definitions. 188 */ 189 #define CPU_CONSDEV 1 /* dev_t: console terminal device */ 190 #define CPU_MAXID 2 /* number of valid machdep ids */ 191 192 #define CTL_MACHDEP_NAMES { \ 193 { 0, 0 }, \ 194 { "console_device", CTLTYPE_STRUCT }, \ 195 } 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 struct pcb; 228 229 /* locore.s functions */ 230 void m68881_save(struct fpframe *); 231 void m68881_restore(struct fpframe *); 232 233 int suline(caddr_t, caddr_t); 234 void savectx(struct pcb *); 235 void switch_exit(struct lwp *); 236 void switch_lwp_exit(struct lwp *); 237 void proc_trampoline(void); 238 void loadustp(int); 239 void badtrap(void); 240 void intrhand_vectored(void); 241 int getsr(void); 242 243 244 void doboot(int) 245 __attribute__((__noreturn__)); 246 void nmihand(struct frame *); 247 void ecacheon(void); 248 void ecacheoff(void); 249 250 /* machdep.c functions */ 251 int badaddr(caddr_t, int); 252 int badbaddr(caddr_t); 253 254 /* sys_machdep.c functions */ 255 int cachectl1(unsigned long, vaddr_t, size_t, struct proc *); 256 257 /* vm_machdep.c functions */ 258 void physaccess(caddr_t, caddr_t, int, int); 259 void physunaccess(caddr_t, int); 260 int kvtop(caddr_t); 261 262 #endif 263 264 /* physical memory sections */ 265 #define ROMBASE 0xe0000000 266 267 #define INTIOBASE1700 0xe0c00000 268 #define INTIOTOP1700 0xe1d00000 /* XXX */ 269 #define EXTIOBASE1700 0xf0f00000 270 #define EXTIOTOP1700 0xf1000000 /* XXX */ 271 #define CTRL_POWER1700 0xe1380000 272 #define CTRL_LED1700 0xe0dc0000 273 274 #define INTIOBASE1200 0xe1000000 275 #define INTIOTOP1200 0xe1d00000 /* XXX */ 276 #define EXTIOBASE1200 0xe4000000 277 #define EXTIOTOP1200 0xe4020000 /* XXX */ 278 #define CTRL_POWER1200 0xe1000000 279 #define CTRL_LED1200 0xe1500001 280 281 #define MAXADDR 0xfffff000 282 283 /* 284 * Internal IO space: 285 * 286 * Internal IO space is mapped in the kernel from ``intiobase'' to 287 * ``intiolimit'' (defined in locore.s). Since it is always mapped, 288 * conversion between physical and kernel virtual addresses is easy. 289 */ 290 #define ISIIOVA(va) \ 291 ((char *)(va) >= intiobase && (char *)(va) < intiolimit) 292 #define IIOV(pa) (((u_int)(pa) - intiobase_phys) + (u_int)intiobase) 293 #define ISIIOPA(pa) \ 294 ((u_int)(pa) >= intiobase_phys && (u_int)(pa) < intiotop_phys) 295 #define IIOP(va) (((u_int)(va) - (u_int)intiobase) + intiobase_phys) 296 #define IIOPOFF(pa) ((u_int)(pa) - intiobase_phys) 297 298 /* XXX EIO space mapping should be modified like hp300 XXX */ 299 #define EIOSIZE (extiotop_phys - extiobase_phys) 300 #define ISEIOVA(va) \ 301 ((char *)(va) >= extiobase && (char *)(va) < (char *)EIOSIZE) 302 #define EIOV(pa) (((u_int)(pa) - extiobase_phys) + (u_int)extiobase) 303 304 #if defined(CACHE_HAVE_PAC) || defined(CACHE_HAVE_VAC) 305 #define M68K_CACHEOPS_MACHDEP 306 #endif 307 308 #ifdef CACHE_HAVE_PAC 309 #define M68K_CACHEOPS_MACHDEP_PCIA 310 #endif 311 312 #ifdef CACHE_HAVE_VAC 313 #define M68K_CACHEOPS_MACHDEP_DCIA 314 #define M68K_CACHEOPS_MACHDEP_DCIS 315 #define M68K_CACHEOPS_MACHDEP_DCIU 316 #endif 317 318 #endif /* !_NEWS68K_CPU_H_ */ 319
Indexes created Thu Sep 25 16:09:42 GMT 2025