1 /* $NetBSD: cpu.h,v 1.35 2009/10/21 21:12:01 rmind 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 cpuid_t ci_cpuid; 122 int ci_mtx_count; 123 int ci_mtx_oldspl; 124 int ci_want_resched; 125 }; 126 127 extern struct cpu_info cpu_info_store; 128 129 #define curcpu() (&cpu_info_store) 130 131 /* 132 * definitions of cpu-dependent requirements 133 * referenced in generic code 134 */ 135 #define cpu_number() 0 136 137 void cpu_proc_fork(struct proc *, struct proc *); 138 139 /* 140 * Arguments to hardclock and gatherstats encapsulate the previous 141 * machine state in an opaque clockframe. One the hp300, we use 142 * what the hardware pushes on an interrupt (frame format 0). 143 */ 144 struct clockframe { 145 u_short sr; /* sr at time of interrupt */ 146 u_long pc; /* pc at time of interrupt */ 147 u_short vo; /* vector offset (4-word frame) */ 148 }; 149 150 #define CLKF_USERMODE(framep) (((framep)->sr & PSL_S) == 0) 151 #define CLKF_PC(framep) ((framep)->pc) 152 #if 0 153 /* We would like to do it this way... */ 154 #define CLKF_INTR(framep) (((framep)->sr & PSL_M) == 0) 155 #else 156 /* but until we start using PSL_M, we have to do this instead */ 157 #include <machine/intr.h> 158 #define CLKF_INTR(framep) (idepth > 1) /* XXX */ 159 #endif 160 161 162 /* 163 * Preempt the current process if in interrupt from user mode, 164 * or after the current trap/syscall if in system mode. 165 */ 166 #define cpu_need_resched(ci, flags) \ 167 do { ci->ci_want_resched = 1; aston(); } while (/* CONSTCOND */0) 168 169 /* 170 * Give a profiling tick to the current process when the user profiling 171 * buffer pages are invalid. On the hp300, request an ast to send us 172 * through trap, marking the proc as needing a profiling tick. 173 */ 174 #define cpu_need_proftick(l) \ 175 do { (l)->l_pflag |= LP_OWEUPC; aston(); } while (/* CONSTCOND */0) 176 177 /* 178 * Notify the current process (p) that it has a signal pending, 179 * process as soon as possible. 180 */ 181 #define cpu_signotify(l) aston() 182 183 extern int astpending; /* need to trap before returning to user mode */ 184 extern volatile u_char *ctrl_ast; 185 #define aston() \ 186 do { astpending++; *ctrl_ast = 0xff; } while (/* CONSTCOND */0) 187 188 #endif /* _KERNEL */ 189 190 /* 191 * CTL_MACHDEP definitions. 192 */ 193 #define CPU_CONSDEV 1 /* dev_t: console terminal device */ 194 #define CPU_MAXID 2 /* number of valid machdep ids */ 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; 226 227 /* locore.s functions */ 228 void m68881_save(struct fpframe *); 229 void m68881_restore(struct fpframe *); 230 231 int suline(void *, void *); 232 void loadustp(int); 233 void badtrap(void); 234 void intrhand_vectored(void); 235 int getsr(void); 236 237 238 void doboot(int) 239 __attribute__((__noreturn__)); 240 void nmihand(struct frame *); 241 void ecacheon(void); 242 void ecacheoff(void); 243 244 /* machdep.c functions */ 245 int badaddr(void *, int); 246 int badbaddr(void *); 247 248 #endif 249 250 /* physical memory sections */ 251 #define ROMBASE 0xe0000000 252 253 #define INTIOBASE1700 0xe0c00000 254 #define INTIOTOP1700 0xe1d00000 /* XXX */ 255 #define EXTIOBASE1700 0xf0f00000 256 #define EXTIOTOP1700 0xf1000000 /* XXX */ 257 #define CTRL_POWER1700 0xe1380000 258 #define CTRL_LED1700 0xe0dc0000 259 260 #define INTIOBASE1200 0xe1000000 261 #define INTIOTOP1200 0xe1d00000 /* XXX */ 262 #define EXTIOBASE1200 0xe4000000 263 #define EXTIOTOP1200 0xe4020000 /* XXX */ 264 #define CTRL_POWER1200 0xe1000000 265 #define CTRL_LED1200 0xe1500001 266 267 #define MAXADDR 0xfffff000 268 269 /* 270 * Internal IO space: 271 * 272 * Internal IO space is mapped in the kernel from ``intiobase'' to 273 * ``intiolimit'' (defined in locore.s). Since it is always mapped, 274 * conversion between physical and kernel virtual addresses is easy. 275 */ 276 #define ISIIOVA(va) \ 277 ((char *)(va) >= intiobase && (char *)(va) < intiolimit) 278 #define IIOV(pa) (((u_int)(pa) - intiobase_phys) + (u_int)intiobase) 279 #define ISIIOPA(pa) \ 280 ((u_int)(pa) >= intiobase_phys && (u_int)(pa) < intiotop_phys) 281 #define IIOP(va) (((u_int)(va) - (u_int)intiobase) + intiobase_phys) 282 #define IIOPOFF(pa) ((u_int)(pa) - intiobase_phys) 283 284 /* XXX EIO space mapping should be modified like hp300 XXX */ 285 #define EIOSIZE (extiotop_phys - extiobase_phys) 286 #define ISEIOVA(va) \ 287 ((char *)(va) >= extiobase && (char *)(va) < (char *)EIOSIZE) 288 #define EIOV(pa) (((u_int)(pa) - extiobase_phys) + (u_int)extiobase) 289 290 #if defined(CACHE_HAVE_PAC) || defined(CACHE_HAVE_VAC) 291 #define M68K_CACHEOPS_MACHDEP 292 #endif 293 294 #ifdef CACHE_HAVE_PAC 295 #define M68K_CACHEOPS_MACHDEP_PCIA 296 #endif 297 298 #ifdef CACHE_HAVE_VAC 299 #define M68K_CACHEOPS_MACHDEP_DCIA 300 #define M68K_CACHEOPS_MACHDEP_DCIS 301 #define M68K_CACHEOPS_MACHDEP_DCIU 302 #endif 303 304 #endif /* !_NEWS68K_CPU_H_ */ 305