1 /* $NetBSD: cpu.h,v 1.37 2010/12/22 02:42:28 matt 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 /* 120 * Arguments to hardclock and gatherstats encapsulate the previous 121 * machine state in an opaque clockframe. One the hp300, we use 122 * what the hardware pushes on an interrupt (frame format 0). 123 */ 124 struct clockframe { 125 u_short sr; /* sr at time of interrupt */ 126 u_long pc; /* pc at time of interrupt */ 127 u_short vo; /* vector offset (4-word frame) */ 128 }; 129 130 #define CLKF_USERMODE(framep) (((framep)->sr & PSL_S) == 0) 131 #define CLKF_PC(framep) ((framep)->pc) 132 #if 0 133 /* We would like to do it this way... */ 134 #define CLKF_INTR(framep) (((framep)->sr & PSL_M) == 0) 135 #else 136 /* but until we start using PSL_M, we have to do this instead */ 137 #include <machine/intr.h> 138 #define CLKF_INTR(framep) (idepth > 1) /* 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) \ 147 do { ci->ci_want_resched = 1; aston(); } while (/* CONSTCOND */0) 148 149 /* 150 * Give a profiling tick to the current process when the user profiling 151 * buffer pages are invalid. On the hp300, request an ast to send us 152 * through trap, marking the proc as needing a profiling tick. 153 */ 154 #define cpu_need_proftick(l) \ 155 do { (l)->l_pflag |= LP_OWEUPC; aston(); } while (/* CONSTCOND */0) 156 157 /* 158 * Notify the current process (p) that it has a signal pending, 159 * process as soon as possible. 160 */ 161 #define cpu_signotify(l) aston() 162 163 extern int astpending; /* need to trap before returning to user mode */ 164 extern volatile u_char *ctrl_ast; 165 #define aston() \ 166 do { astpending++; *ctrl_ast = 0xff; } while (/* CONSTCOND */0) 167 168 #endif /* _KERNEL */ 169 170 /* 171 * CTL_MACHDEP definitions. 172 */ 173 #define CPU_CONSDEV 1 /* dev_t: console terminal device */ 174 #define CPU_MAXID 2 /* number of valid machdep ids */ 175 176 #ifdef _KERNEL 177 178 #if defined(news1700) || defined(news1200) 179 #ifndef M68030 180 #define M68030 181 #endif 182 #define M68K_MMU_MOTOROLA 183 #endif 184 185 #if defined(news1700) 186 #define CACHE_HAVE_PAC 187 #endif 188 189 #endif 190 191 #ifdef _KERNEL 192 extern int systype; 193 #define NEWS1700 0 194 #define NEWS1200 1 195 196 extern int cpuspeed; 197 extern char *intiobase, *intiolimit, *extiobase; 198 extern u_int intiobase_phys, intiotop_phys; 199 extern u_int extiobase_phys, extiotop_phys; 200 extern u_int intrcnt[]; 201 202 extern void (*vectab[])(void); 203 204 struct frame; 205 struct fpframe; 206 207 /* locore.s functions */ 208 void m68881_save(struct fpframe *); 209 void m68881_restore(struct fpframe *); 210 211 int suline(void *, void *); 212 void loadustp(int); 213 void badtrap(void); 214 void intrhand_vectored(void); 215 int getsr(void); 216 217 218 void doboot(int) 219 __attribute__((__noreturn__)); 220 void nmihand(struct frame *); 221 void ecacheon(void); 222 void ecacheoff(void); 223 224 /* machdep.c functions */ 225 int badaddr(void *, int); 226 int badbaddr(void *); 227 228 #endif 229 230 /* physical memory sections */ 231 #define ROMBASE 0xe0000000 232 233 #define INTIOBASE1700 0xe0c00000 234 #define INTIOTOP1700 0xe1d00000 /* XXX */ 235 #define EXTIOBASE1700 0xf0f00000 236 #define EXTIOTOP1700 0xf1000000 /* XXX */ 237 #define CTRL_POWER1700 0xe1380000 238 #define CTRL_LED1700 0xe0dc0000 239 240 #define INTIOBASE1200 0xe1000000 241 #define INTIOTOP1200 0xe1d00000 /* XXX */ 242 #define EXTIOBASE1200 0xe4000000 243 #define EXTIOTOP1200 0xe4020000 /* XXX */ 244 #define CTRL_POWER1200 0xe1000000 245 #define CTRL_LED1200 0xe1500001 246 247 #define MAXADDR 0xfffff000 248 249 /* 250 * Internal IO space: 251 * 252 * Internal IO space is mapped in the kernel from ``intiobase'' to 253 * ``intiolimit'' (defined in locore.s). Since it is always mapped, 254 * conversion between physical and kernel virtual addresses is easy. 255 */ 256 #define ISIIOVA(va) \ 257 ((char *)(va) >= intiobase && (char *)(va) < intiolimit) 258 #define IIOV(pa) (((u_int)(pa) - intiobase_phys) + (u_int)intiobase) 259 #define ISIIOPA(pa) \ 260 ((u_int)(pa) >= intiobase_phys && (u_int)(pa) < intiotop_phys) 261 #define IIOP(va) (((u_int)(va) - (u_int)intiobase) + intiobase_phys) 262 #define IIOPOFF(pa) ((u_int)(pa) - intiobase_phys) 263 264 /* XXX EIO space mapping should be modified like hp300 XXX */ 265 #define EIOSIZE (extiotop_phys - extiobase_phys) 266 #define ISEIOVA(va) \ 267 ((char *)(va) >= extiobase && (char *)(va) < (char *)EIOSIZE) 268 #define EIOV(pa) (((u_int)(pa) - extiobase_phys) + (u_int)extiobase) 269 270 #if defined(CACHE_HAVE_PAC) || defined(CACHE_HAVE_VAC) 271 #define M68K_CACHEOPS_MACHDEP 272 #endif 273 274 #ifdef CACHE_HAVE_PAC 275 #define M68K_CACHEOPS_MACHDEP_PCIA 276 #endif 277 278 #ifdef CACHE_HAVE_VAC 279 #define M68K_CACHEOPS_MACHDEP_DCIA 280 #define M68K_CACHEOPS_MACHDEP_DCIS 281 #define M68K_CACHEOPS_MACHDEP_DCIU 282 #endif 283 284 #endif /* !_NEWS68K_CPU_H_ */ 285