cpu.h revision 1.42
1 /* $NetBSD: cpu.h,v 1.42 2003/08/07 16:27:39 agc 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 _HP300_CPU_H_ 80 #define _HP300_CPU_H_ 81 82 #if defined(_KERNEL_OPT) 83 #include "opt_lockdebug.h" 84 #endif 85 86 /* 87 * Exported definitions unique to hp300/68k cpu support. 88 */ 89 90 /* 91 * Get common m68k CPU definitions. 92 */ 93 #include <m68k/cpu.h> 94 #include <machine/hp300spu.h> 95 96 /* 97 * Get interrupt glue. 98 */ 99 #include <machine/intr.h> 100 101 #include <sys/sched.h> 102 struct cpu_info { 103 struct schedstate_percpu ci_schedstate; /* scheduler state */ 104 #if defined(DIAGNOSTIC) || defined(LOCKDEBUG) 105 u_long ci_spin_locks; /* # of spin locks held */ 106 u_long ci_simple_locks; /* # of simple locks held */ 107 #endif 108 }; 109 110 #ifdef _KERNEL 111 extern struct cpu_info cpu_info_store; 112 113 #define curcpu() (&cpu_info_store) 114 115 /* 116 * definitions of cpu-dependent requirements 117 * referenced in generic code 118 */ 119 #define cpu_swapin(p) /* nothing */ 120 #define cpu_wait(p) /* nothing */ 121 #define cpu_swapout(p) /* nothing */ 122 #define cpu_number() 0 123 124 void cpu_proc_fork(struct proc *, struct proc *); 125 126 /* 127 * Arguments to hardclock and gatherstats encapsulate the previous 128 * machine state in an opaque clockframe. One the hp300, we use 129 * what the hardware pushes on an interrupt (frame format 0). 130 */ 131 struct clockframe { 132 u_short sr; /* sr at time of interrupt */ 133 u_long pc; /* pc at time of interrupt */ 134 u_short vo; /* vector offset (4-word frame) */ 135 }; 136 137 #define CLKF_USERMODE(framep) (((framep)->sr & PSL_S) == 0) 138 #define CLKF_BASEPRI(framep) (((framep)->sr & PSL_IPL) == 0) 139 #define CLKF_PC(framep) ((framep)->pc) 140 #if 0 141 /* We would like to do it this way... */ 142 #define CLKF_INTR(framep) (((framep)->sr & PSL_M) == 0) 143 #else 144 /* but until we start using PSL_M, we have to do this instead */ 145 #define CLKF_INTR(framep) (0) /* XXX */ 146 #endif 147 148 149 /* 150 * Preempt the current process if in interrupt from user mode, 151 * or after the current trap/syscall if in system mode. 152 */ 153 extern int want_resched; /* resched() was called */ 154 #define need_resched(ci) { want_resched++; aston(); } 155 156 /* 157 * Give a profiling tick to the current process when the user profiling 158 * buffer pages are invalid. On the hp300, request an ast to send us 159 * through trap, marking the proc as needing a profiling tick. 160 */ 161 #define need_proftick(p) { (p)->p_flag |= P_OWEUPC; aston(); } 162 163 /* 164 * Notify the current process (p) that it has a signal pending, 165 * process as soon as possible. 166 */ 167 #define signotify(p) aston() 168 169 extern int astpending; /* need to trap before returning to user mode */ 170 #define aston() (astpending++) 171 172 #endif /* _KERNEL */ 173 174 /* 175 * CTL_MACHDEP definitions. 176 */ 177 #define CPU_CONSDEV 1 /* dev_t: console terminal device */ 178 #define CPU_MAXID 2 /* number of valid machdep ids */ 179 180 #define CTL_MACHDEP_NAMES { \ 181 { 0, 0 }, \ 182 { "console_device", CTLTYPE_STRUCT }, \ 183 } 184 185 /* 186 * The rest of this should probably be moved to <machine/hp300spu.h>, 187 * although some of it could probably be put into generic 68k headers. 188 */ 189 190 #ifdef _KERNEL 191 extern char *intiobase, *intiolimit; 192 extern void (*vectab[]) __P((void)); 193 194 struct frame; 195 struct fpframe; 196 struct pcb; 197 198 /* locore.s functions */ 199 void m68881_save __P((struct fpframe *)); 200 void m68881_restore __P((struct fpframe *)); 201 int suline __P((caddr_t, caddr_t)); 202 void savectx __P((struct pcb *)); 203 void switch_exit __P((struct lwp *)); 204 void switch_lwp_exit __P((struct lwp *)); 205 void proc_trampoline __P((void)); 206 void loadustp __P((int)); 207 208 void doboot __P((void)) 209 __attribute__((__noreturn__)); 210 void ecacheon __P((void)); 211 void ecacheoff __P((void)); 212 213 /* clock.c functions */ 214 void hp300_calibrate_delay __P((void)); 215 216 /* machdep.c functions */ 217 int badaddr __P((caddr_t)); 218 int badbaddr __P((caddr_t)); 219 220 /* sys_machdep.c functions */ 221 int cachectl1 __P((unsigned long, vaddr_t, size_t, struct proc *)); 222 223 /* vm_machdep.c functions */ 224 void physaccess __P((caddr_t, caddr_t, int, int)); 225 void physunaccess __P((caddr_t, int)); 226 int kvtop __P((caddr_t)); 227 228 /* what is this supposed to do? i.e. how is it different than startrtclock? */ 229 #define enablertclock() 230 231 #endif 232 233 /* physical memory sections */ 234 #define ROMBASE (0x00000000) 235 #define INTIOBASE (0x00400000) 236 #define INTIOTOP (0x00600000) 237 #define EXTIOBASE (0x00600000) 238 #define EXTIOTOP (0x20000000) 239 #define MAXADDR (0xFFFFF000) 240 241 /* 242 * Internal IO space: 243 * 244 * Ranges from 0x400000 to 0x600000 (IIOMAPSIZE). 245 * 246 * Internal IO space is mapped in the kernel from ``intiobase'' to 247 * ``intiolimit'' (defined in locore.s). Since it is always mapped, 248 * conversion between physical and kernel virtual addresses is easy. 249 */ 250 #define ISIIOVA(va) \ 251 ((char *)(va) >= intiobase && (char *)(va) < intiolimit) 252 #define IIOV(pa) ((int)(pa)-INTIOBASE+(int)intiobase) 253 #define IIOP(va) ((int)(va)-(int)intiobase+INTIOBASE) 254 #define IIOPOFF(pa) ((int)(pa)-INTIOBASE) 255 #define IIOMAPSIZE btoc(INTIOTOP-INTIOBASE) /* 2mb */ 256 257 /* 258 * External IO space: 259 * 260 * DIO ranges from select codes 0-63 at physical addresses given by: 261 * 0x600000 + (sc - 32) * 0x10000 262 * DIO cards are addressed in the range 0-31 [0x600000-0x800000) for 263 * their control space and the remaining areas, [0x200000-0x400000) and 264 * [0x800000-0x1000000), are for additional space required by a card; 265 * e.g. a display framebuffer. 266 * 267 * DIO-II ranges from select codes 132-255 at physical addresses given by: 268 * 0x1000000 + (sc - 132) * 0x400000 269 * The address range of DIO-II space is thus [0x1000000-0x20000000). 270 * 271 * DIO/DIO-II space is too large to map in its entirety, instead devices 272 * are mapped into kernel virtual address space allocated from a range 273 * of EIOMAPSIZE pages (vmparam.h) starting at ``extiobase''. 274 */ 275 #define DIOBASE (0x600000) 276 #define DIOTOP (0x1000000) 277 #define DIOCSIZE (0x10000) 278 #define DIOIIBASE (0x01000000) 279 #define DIOIITOP (0x20000000) 280 #define DIOIICSIZE (0x00400000) 281 282 /* 283 * HP MMU 284 */ 285 #define MMUBASE IIOPOFF(0x5F4000) 286 #define MMUSSTP 0x0 287 #define MMUUSTP 0x4 288 #define MMUTBINVAL 0x8 289 #define MMUSTAT 0xC 290 #define MMUCMD MMUSTAT 291 292 #define MMU_UMEN 0x0001 /* enable user mapping */ 293 #define MMU_SMEN 0x0002 /* enable supervisor mapping */ 294 #define MMU_CEN 0x0004 /* enable data cache */ 295 #define MMU_BERR 0x0008 /* bus error */ 296 #define MMU_IEN 0x0020 /* enable instruction cache */ 297 #define MMU_FPE 0x0040 /* enable 68881 FP coprocessor */ 298 #define MMU_WPF 0x2000 /* write protect fault */ 299 #define MMU_PF 0x4000 /* page fault */ 300 #define MMU_PTF 0x8000 /* page table fault */ 301 302 #define MMU_FAULT (MMU_PTF|MMU_PF|MMU_WPF|MMU_BERR) 303 #define MMU_ENAB (MMU_UMEN|MMU_SMEN|MMU_IEN|MMU_FPE) 304 305 #if defined(CACHE_HAVE_PAC) || defined(CACHE_HAVE_VAC) 306 #define M68K_CACHEOPS_MACHDEP 307 #endif 308 309 #ifdef CACHE_HAVE_PAC 310 #define M68K_CACHEOPS_MACHDEP_PCIA 311 #endif 312 313 #ifdef CACHE_HAVE_VAC 314 #define M68K_CACHEOPS_MACHDEP_DCIA 315 #define M68K_CACHEOPS_MACHDEP_DCIS 316 #define M68K_CACHEOPS_MACHDEP_DCIU 317 #define M68K_CACHEOPS_MACHDEP_TBIA 318 #define M68K_CACHEOPS_MACHDEP_TBIS 319 #define M68K_CACHEOPS_MACHDEP_TBIAS 320 #define M68K_CACHEOPS_MACHDEP_TBIAU 321 #endif 322 323 #endif /* _HP300_CPU_H_ */ 324
Indexes created Mon Sep 29 21:09:56 GMT 2025