1 /* $NetBSD: cpu.h,v 1.17 2004/01/04 11:33:30 jdolecek 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/sched.h> 117 struct cpu_info { 118 struct schedstate_percpu ci_schedstate; /* scheduler state */ 119 #if defined(DIAGNOSTIC) || defined(LOCKDEBUG) 120 u_long ci_spin_locks; /* # of spin locks held */ 121 u_long ci_simple_locks; /* # of simple locks held */ 122 #endif 123 }; 124 125 #ifdef _KERNEL 126 extern struct cpu_info cpu_info_store; 127 128 #define curcpu() (&cpu_info_store) 129 130 /* 131 * definitions of cpu-dependent requirements 132 * referenced in generic code 133 */ 134 #define cpu_swapin(p) /* nothing */ 135 #define cpu_swapout(p) /* nothing */ 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_BASEPRI(framep) (((framep)->sr & PSL_IPL) == 0) 153 #define CLKF_PC(framep) ((framep)->pc) 154 #if 0 155 /* We would like to do it this way... */ 156 #define CLKF_INTR(framep) (((framep)->sr & PSL_M) == 0) 157 #else 158 /* but until we start using PSL_M, we have to do this instead */ 159 #define CLKF_INTR(framep) (0) /* 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 extern int want_resched; /* resched() was called */ 168 #define need_resched(ci) do { want_resched++; aston(); } while(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 need_proftick(p) do { (p)->p_flag |= P_OWEUPC; aston(); } while(0) 176 177 /* 178 * Notify the current process (p) that it has a signal pending, 179 * process as soon as possible. 180 */ 181 #define signotify(p) aston() 182 183 extern int astpending; /* need to trap before returning to user mode */ 184 extern volatile u_char *ctrl_ast; 185 #define aston() do { astpending++; *ctrl_ast = 0xff; } while(0) 186 187 #endif /* _KERNEL */ 188 189 /* 190 * CTL_MACHDEP definitions. 191 */ 192 #define CPU_CONSDEV 1 /* dev_t: console terminal device */ 193 #define CPU_MAXID 2 /* number of valid machdep ids */ 194 195 #define CTL_MACHDEP_NAMES { \ 196 { 0, 0 }, \ 197 { "console_device", CTLTYPE_STRUCT }, \ 198 } 199 200 #ifdef _KERNEL 201 202 #if defined(news1700) || defined(news1200) 203 #ifndef M68030 204 #define M68030 205 #endif 206 #define M68K_MMU_MOTOROLA 207 #endif 208 209 #if defined(news1700) 210 #define CACHE_HAVE_PAC 211 #endif 212 213 #endif 214 215 #ifdef _KERNEL 216 extern int systype; 217 #define NEWS1700 0 218 #define NEWS1200 1 219 220 extern int cpuspeed; 221 extern char *intiobase, *intiolimit, *extiobase; 222 extern u_int intiobase_phys, intiotop_phys; 223 extern u_int extiobase_phys, extiotop_phys; 224 extern u_int intrcnt[]; 225 226 extern void (*vectab[])(void); 227 228 struct frame; 229 struct fpframe; 230 struct pcb; 231 232 /* locore.s functions */ 233 void m68881_save(struct fpframe *); 234 void m68881_restore(struct fpframe *); 235 236 int suline(caddr_t, caddr_t); 237 void savectx(struct pcb *); 238 void switch_exit(struct lwp *); 239 void switch_lwp_exit(struct lwp *); 240 void proc_trampoline(void); 241 void loadustp(int); 242 void badtrap(void); 243 void intrhand_vectored(void); 244 int getsr(void); 245 246 247 void doboot(int) 248 __attribute__((__noreturn__)); 249 void nmihand(struct frame *); 250 void ecacheon(void); 251 void ecacheoff(void); 252 253 /* machdep.c functions */ 254 int badaddr(caddr_t, int); 255 int badbaddr(caddr_t); 256 257 /* sys_machdep.c functions */ 258 int cachectl1(unsigned long, vaddr_t, size_t, struct proc *); 259 260 /* vm_machdep.c functions */ 261 void physaccess(caddr_t, caddr_t, int, int); 262 void physunaccess(caddr_t, int); 263 int kvtop(caddr_t); 264 265 #endif 266 267 /* physical memory sections */ 268 #define ROMBASE (0xe0000000) 269 270 #define INTIOBASE1700 (0xe0c00000) 271 #define INTIOTOP1700 (0xe1d00000) /* XXX */ 272 #define EXTIOBASE1700 (0xf0f00000) 273 #define EXTIOTOP1700 (0xf1000000) /* XXX */ 274 275 #define INTIOBASE1200 (0xe1000000) 276 #define INTIOTOP1200 (0xe1d00000) /* XXX */ 277 #define EXTIOBASE1200 (0xe4000000) 278 #define EXTIOTOP1200 (0xe4020000) /* XXX */ 279 280 #define MAXADDR (0xfffff000) 281 282 /* 283 * Internal IO space: 284 * 285 * Internal IO space is mapped in the kernel from ``intiobase'' to 286 * ``intiolimit'' (defined in locore.s). Since it is always mapped, 287 * conversion between physical and kernel virtual addresses is easy. 288 */ 289 #define ISIIOVA(va) \ 290 ((char *)(va) >= intiobase && (char *)(va) < intiolimit) 291 #define IIOV(pa) (((u_int)(pa) - intiobase_phys) + (u_int)intiobase) 292 #define ISIIOPA(pa) \ 293 ((u_int)(pa) >= intiobase_phys && (u_int)(pa) < intiotop_phys) 294 #define IIOP(va) (((u_int)(va) - (u_int)intiobase) + intiobase_phys) 295 #define IIOPOFF(pa) ((u_int)(pa) - intiobase_phys) 296 297 /* XXX EIO space mapping should be modified like hp300 XXX */ 298 #define EIOSIZE (extiotop_phys - extiobase_phys) 299 #define ISEIOVA(va) \ 300 ((char *)(va) >= extiobase && (char *)(va) < (char *)EIOSIZE) 301 #define EIOV(pa) (((u_int)(pa) - extiobase_phys) + (u_int)extiobase) 302 303 #if defined(CACHE_HAVE_PAC) || defined(CACHE_HAVE_VAC) 304 #define M68K_CACHEOPS_MACHDEP 305 #endif 306 307 #ifdef CACHE_HAVE_PAC 308 #define M68K_CACHEOPS_MACHDEP_PCIA 309 #endif 310 311 #ifdef CACHE_HAVE_VAC 312 #define M68K_CACHEOPS_MACHDEP_DCIA 313 #define M68K_CACHEOPS_MACHDEP_DCIS 314 #define M68K_CACHEOPS_MACHDEP_DCIU 315 #endif 316 317 #endif /* !_NEWS68K_CPU_H_ */ 318