cpu.h revision 1.45
1 /* $NetBSD: cpu.h,v 1.45 2004/09/22 11:32:02 yamt 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/cpu_data.h> 102 struct cpu_info { 103 struct cpu_data ci_data; /* MI per-cpu data */ 104 }; 105 106 #ifdef _KERNEL 107 extern struct cpu_info cpu_info_store; 108 109 #define curcpu() (&cpu_info_store) 110 111 /* 112 * definitions of cpu-dependent requirements 113 * referenced in generic code 114 */ 115 #define cpu_swapin(p) /* nothing */ 116 #define cpu_swapout(p) /* nothing */ 117 #define cpu_number() 0 118 119 void cpu_proc_fork(struct proc *, struct proc *); 120 121 /* 122 * Arguments to hardclock and gatherstats encapsulate the previous 123 * machine state in an opaque clockframe. One the hp300, we use 124 * what the hardware pushes on an interrupt (frame format 0). 125 */ 126 struct clockframe { 127 u_short sr; /* sr at time of interrupt */ 128 u_long pc; /* pc at time of interrupt */ 129 u_short vo; /* vector offset (4-word frame) */ 130 }; 131 132 #define CLKF_USERMODE(framep) (((framep)->sr & PSL_S) == 0) 133 #define CLKF_BASEPRI(framep) (((framep)->sr & PSL_IPL) == 0) 134 #define CLKF_PC(framep) ((framep)->pc) 135 #if 0 136 /* We would like to do it this way... */ 137 #define CLKF_INTR(framep) (((framep)->sr & PSL_M) == 0) 138 #else 139 /* but until we start using PSL_M, we have to do this instead */ 140 #define CLKF_INTR(framep) (0) /* XXX */ 141 #endif 142 143 144 /* 145 * Preempt the current process if in interrupt from user mode, 146 * or after the current trap/syscall if in system mode. 147 */ 148 extern int want_resched; /* resched() was called */ 149 #define need_resched(ci) { want_resched++; aston(); } 150 151 /* 152 * Give a profiling tick to the current process when the user profiling 153 * buffer pages are invalid. On the hp300, request an ast to send us 154 * through trap, marking the proc as needing a profiling tick. 155 */ 156 #define need_proftick(p) { (p)->p_flag |= P_OWEUPC; aston(); } 157 158 /* 159 * Notify the current process (p) that it has a signal pending, 160 * process as soon as possible. 161 */ 162 #define signotify(p) aston() 163 164 extern int astpending; /* need to trap before returning to user mode */ 165 #define aston() (astpending++) 166 167 #endif /* _KERNEL */ 168 169 /* 170 * CTL_MACHDEP definitions. 171 */ 172 #define CPU_CONSDEV 1 /* dev_t: console terminal device */ 173 #define CPU_MAXID 2 /* number of valid machdep ids */ 174 175 #define CTL_MACHDEP_NAMES { \ 176 { 0, 0 }, \ 177 { "console_device", CTLTYPE_STRUCT }, \ 178 } 179 180 /* 181 * The rest of this should probably be moved to <machine/hp300spu.h>, 182 * although some of it could probably be put into generic 68k headers. 183 */ 184 185 #ifdef _KERNEL 186 extern char *intiobase, *intiolimit; 187 extern void (*vectab[])(void); 188 189 struct frame; 190 struct fpframe; 191 struct pcb; 192 193 /* locore.s functions */ 194 void m68881_save(struct fpframe *); 195 void m68881_restore(struct fpframe *); 196 int suline(caddr_t, caddr_t); 197 void savectx(struct pcb *); 198 void switch_exit(struct lwp *); 199 void switch_lwp_exit(struct lwp *); 200 void proc_trampoline(void); 201 void loadustp(int); 202 203 void doboot(void) __attribute__((__noreturn__)); 204 void ecacheon(void); 205 void ecacheoff(void); 206 207 /* clock.c functions */ 208 void hp300_calibrate_delay(void); 209 210 /* machdep.c functions */ 211 int badaddr(caddr_t); 212 int badbaddr(caddr_t); 213 214 /* sys_machdep.c functions */ 215 int cachectl1(unsigned long, vaddr_t, size_t, struct proc *); 216 217 /* vm_machdep.c functions */ 218 void physaccess(caddr_t, caddr_t, int, int); 219 void physunaccess(caddr_t, int); 220 int kvtop(caddr_t); 221 222 /* what is this supposed to do? i.e. how is it different than startrtclock? */ 223 #define enablertclock() 224 225 #endif 226 227 /* physical memory sections */ 228 #define ROMBASE (0x00000000) 229 #define INTIOBASE (0x00400000) 230 #define INTIOTOP (0x00600000) 231 #define EXTIOBASE (0x00600000) 232 #define EXTIOTOP (0x20000000) 233 #define MAXADDR (0xFFFFF000) 234 235 /* 236 * Internal IO space: 237 * 238 * Ranges from 0x400000 to 0x600000 (IIOMAPSIZE). 239 * 240 * Internal IO space is mapped in the kernel from ``intiobase'' to 241 * ``intiolimit'' (defined in locore.s). Since it is always mapped, 242 * conversion between physical and kernel virtual addresses is easy. 243 */ 244 #define ISIIOVA(va) \ 245 ((char *)(va) >= intiobase && (char *)(va) < intiolimit) 246 #define IIOV(pa) ((int)(pa)-INTIOBASE+(int)intiobase) 247 #define IIOP(va) ((int)(va)-(int)intiobase+INTIOBASE) 248 #define IIOPOFF(pa) ((int)(pa)-INTIOBASE) 249 #define IIOMAPSIZE btoc(INTIOTOP-INTIOBASE) /* 2mb */ 250 251 /* 252 * External IO space: 253 * 254 * DIO ranges from select codes 0-63 at physical addresses given by: 255 * 0x600000 + (sc - 32) * 0x10000 256 * DIO cards are addressed in the range 0-31 [0x600000-0x800000) for 257 * their control space and the remaining areas, [0x200000-0x400000) and 258 * [0x800000-0x1000000), are for additional space required by a card; 259 * e.g. a display framebuffer. 260 * 261 * DIO-II ranges from select codes 132-255 at physical addresses given by: 262 * 0x1000000 + (sc - 132) * 0x400000 263 * The address range of DIO-II space is thus [0x1000000-0x20000000). 264 * 265 * DIO/DIO-II space is too large to map in its entirety, instead devices 266 * are mapped into kernel virtual address space allocated from a range 267 * of EIOMAPSIZE pages (vmparam.h) starting at ``extiobase''. 268 */ 269 #define DIOBASE (0x600000) 270 #define DIOTOP (0x1000000) 271 #define DIOCSIZE (0x10000) 272 #define DIOIIBASE (0x01000000) 273 #define DIOIITOP (0x20000000) 274 #define DIOIICSIZE (0x00400000) 275 276 /* 277 * HP MMU 278 */ 279 #define MMUBASE IIOPOFF(0x5F4000) 280 #define MMUSSTP 0x0 281 #define MMUUSTP 0x4 282 #define MMUTBINVAL 0x8 283 #define MMUSTAT 0xC 284 #define MMUCMD MMUSTAT 285 286 #define MMU_UMEN 0x0001 /* enable user mapping */ 287 #define MMU_SMEN 0x0002 /* enable supervisor mapping */ 288 #define MMU_CEN 0x0004 /* enable data cache */ 289 #define MMU_BERR 0x0008 /* bus error */ 290 #define MMU_IEN 0x0020 /* enable instruction cache */ 291 #define MMU_FPE 0x0040 /* enable 68881 FP coprocessor */ 292 #define MMU_WPF 0x2000 /* write protect fault */ 293 #define MMU_PF 0x4000 /* page fault */ 294 #define MMU_PTF 0x8000 /* page table fault */ 295 296 #define MMU_FAULT (MMU_PTF|MMU_PF|MMU_WPF|MMU_BERR) 297 #define MMU_ENAB (MMU_UMEN|MMU_SMEN|MMU_IEN|MMU_FPE) 298 299 #if defined(CACHE_HAVE_PAC) || defined(CACHE_HAVE_VAC) 300 #define M68K_CACHEOPS_MACHDEP 301 #endif 302 303 #ifdef CACHE_HAVE_PAC 304 #define M68K_CACHEOPS_MACHDEP_PCIA 305 #endif 306 307 #ifdef CACHE_HAVE_VAC 308 #define M68K_CACHEOPS_MACHDEP_DCIA 309 #define M68K_CACHEOPS_MACHDEP_DCIS 310 #define M68K_CACHEOPS_MACHDEP_DCIU 311 #define M68K_CACHEOPS_MACHDEP_TBIA 312 #define M68K_CACHEOPS_MACHDEP_TBIS 313 #define M68K_CACHEOPS_MACHDEP_TBIAS 314 #define M68K_CACHEOPS_MACHDEP_TBIAU 315 #endif 316 317 #endif /* _HP300_CPU_H_ */ 318
Indexes created Fri Sep 26 20:09:58 GMT 2025