cpu.h revision 1.46
1 /* $NetBSD: cpu.h,v 1.46 2004/09/26 21:44:26 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) 83 84 #if defined(_KERNEL_OPT) 85 #include "opt_lockdebug.h" 86 #endif 87 88 /* 89 * Exported definitions unique to hp300/68k cpu support. 90 */ 91 92 /* 93 * Get common m68k CPU definitions. 94 */ 95 #include <m68k/cpu.h> 96 #include <machine/hp300spu.h> 97 98 /* 99 * Get interrupt glue. 100 */ 101 #include <machine/intr.h> 102 103 #include <sys/cpu_data.h> 104 struct cpu_info { 105 struct cpu_data ci_data; /* MI per-cpu data */ 106 }; 107 108 extern struct cpu_info cpu_info_store; 109 110 #define curcpu() (&cpu_info_store) 111 112 /* 113 * definitions of cpu-dependent requirements 114 * referenced in generic code 115 */ 116 #define cpu_swapin(p) /* nothing */ 117 #define cpu_swapout(p) /* nothing */ 118 #define cpu_number() 0 119 120 void cpu_proc_fork(struct proc *, struct proc *); 121 122 /* 123 * Arguments to hardclock and gatherstats encapsulate the previous 124 * machine state in an opaque clockframe. One the hp300, we use 125 * what the hardware pushes on an interrupt (frame format 0). 126 */ 127 struct clockframe { 128 u_short sr; /* sr at time of interrupt */ 129 u_long pc; /* pc at time of interrupt */ 130 u_short vo; /* vector offset (4-word frame) */ 131 }; 132 133 #define CLKF_USERMODE(framep) (((framep)->sr & PSL_S) == 0) 134 #define CLKF_BASEPRI(framep) (((framep)->sr & PSL_IPL) == 0) 135 #define CLKF_PC(framep) ((framep)->pc) 136 #if 0 137 /* We would like to do it this way... */ 138 #define CLKF_INTR(framep) (((framep)->sr & PSL_M) == 0) 139 #else 140 /* but until we start using PSL_M, we have to do this instead */ 141 #define CLKF_INTR(framep) (0) /* XXX */ 142 #endif 143 144 145 /* 146 * Preempt the current process if in interrupt from user mode, 147 * or after the current trap/syscall if in system mode. 148 */ 149 extern int want_resched; /* resched() was called */ 150 #define need_resched(ci) { want_resched++; aston(); } 151 152 /* 153 * Give a profiling tick to the current process when the user profiling 154 * buffer pages are invalid. On the hp300, request an ast to send us 155 * through trap, marking the proc as needing a profiling tick. 156 */ 157 #define need_proftick(p) { (p)->p_flag |= P_OWEUPC; aston(); } 158 159 /* 160 * Notify the current process (p) that it has a signal pending, 161 * process as soon as possible. 162 */ 163 #define signotify(p) aston() 164 165 extern int astpending; /* need to trap before returning to user mode */ 166 #define aston() (astpending++) 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 #define CTL_MACHDEP_NAMES { \ 177 { 0, 0 }, \ 178 { "console_device", CTLTYPE_STRUCT }, \ 179 } 180 181 /* 182 * The rest of this should probably be moved to <machine/hp300spu.h>, 183 * although some of it could probably be put into generic 68k headers. 184 */ 185 186 #ifdef _KERNEL 187 extern char *intiobase, *intiolimit; 188 extern void (*vectab[])(void); 189 190 struct frame; 191 struct fpframe; 192 struct pcb; 193 194 /* locore.s functions */ 195 void m68881_save(struct fpframe *); 196 void m68881_restore(struct fpframe *); 197 int suline(caddr_t, caddr_t); 198 void savectx(struct pcb *); 199 void switch_exit(struct lwp *); 200 void switch_lwp_exit(struct lwp *); 201 void proc_trampoline(void); 202 void loadustp(int); 203 204 void doboot(void) __attribute__((__noreturn__)); 205 void ecacheon(void); 206 void ecacheoff(void); 207 208 /* clock.c functions */ 209 void hp300_calibrate_delay(void); 210 211 /* machdep.c functions */ 212 int badaddr(caddr_t); 213 int badbaddr(caddr_t); 214 215 /* sys_machdep.c functions */ 216 int cachectl1(unsigned long, vaddr_t, size_t, struct proc *); 217 218 /* vm_machdep.c functions */ 219 void physaccess(caddr_t, caddr_t, int, int); 220 void physunaccess(caddr_t, int); 221 int kvtop(caddr_t); 222 223 /* what is this supposed to do? i.e. how is it different than startrtclock? */ 224 #define enablertclock() 225 226 #endif 227 228 /* physical memory sections */ 229 #define ROMBASE (0x00000000) 230 #define INTIOBASE (0x00400000) 231 #define INTIOTOP (0x00600000) 232 #define EXTIOBASE (0x00600000) 233 #define EXTIOTOP (0x20000000) 234 #define MAXADDR (0xFFFFF000) 235 236 /* 237 * Internal IO space: 238 * 239 * Ranges from 0x400000 to 0x600000 (IIOMAPSIZE). 240 * 241 * Internal IO space is mapped in the kernel from ``intiobase'' to 242 * ``intiolimit'' (defined in locore.s). Since it is always mapped, 243 * conversion between physical and kernel virtual addresses is easy. 244 */ 245 #define ISIIOVA(va) \ 246 ((char *)(va) >= intiobase && (char *)(va) < intiolimit) 247 #define IIOV(pa) ((int)(pa)-INTIOBASE+(int)intiobase) 248 #define IIOP(va) ((int)(va)-(int)intiobase+INTIOBASE) 249 #define IIOPOFF(pa) ((int)(pa)-INTIOBASE) 250 #define IIOMAPSIZE btoc(INTIOTOP-INTIOBASE) /* 2mb */ 251 252 /* 253 * External IO space: 254 * 255 * DIO ranges from select codes 0-63 at physical addresses given by: 256 * 0x600000 + (sc - 32) * 0x10000 257 * DIO cards are addressed in the range 0-31 [0x600000-0x800000) for 258 * their control space and the remaining areas, [0x200000-0x400000) and 259 * [0x800000-0x1000000), are for additional space required by a card; 260 * e.g. a display framebuffer. 261 * 262 * DIO-II ranges from select codes 132-255 at physical addresses given by: 263 * 0x1000000 + (sc - 132) * 0x400000 264 * The address range of DIO-II space is thus [0x1000000-0x20000000). 265 * 266 * DIO/DIO-II space is too large to map in its entirety, instead devices 267 * are mapped into kernel virtual address space allocated from a range 268 * of EIOMAPSIZE pages (vmparam.h) starting at ``extiobase''. 269 */ 270 #define DIOBASE (0x600000) 271 #define DIOTOP (0x1000000) 272 #define DIOCSIZE (0x10000) 273 #define DIOIIBASE (0x01000000) 274 #define DIOIITOP (0x20000000) 275 #define DIOIICSIZE (0x00400000) 276 277 /* 278 * HP MMU 279 */ 280 #define MMUBASE IIOPOFF(0x5F4000) 281 #define MMUSSTP 0x0 282 #define MMUUSTP 0x4 283 #define MMUTBINVAL 0x8 284 #define MMUSTAT 0xC 285 #define MMUCMD MMUSTAT 286 287 #define MMU_UMEN 0x0001 /* enable user mapping */ 288 #define MMU_SMEN 0x0002 /* enable supervisor mapping */ 289 #define MMU_CEN 0x0004 /* enable data cache */ 290 #define MMU_BERR 0x0008 /* bus error */ 291 #define MMU_IEN 0x0020 /* enable instruction cache */ 292 #define MMU_FPE 0x0040 /* enable 68881 FP coprocessor */ 293 #define MMU_WPF 0x2000 /* write protect fault */ 294 #define MMU_PF 0x4000 /* page fault */ 295 #define MMU_PTF 0x8000 /* page table fault */ 296 297 #define MMU_FAULT (MMU_PTF|MMU_PF|MMU_WPF|MMU_BERR) 298 #define MMU_ENAB (MMU_UMEN|MMU_SMEN|MMU_IEN|MMU_FPE) 299 300 #if defined(CACHE_HAVE_PAC) || defined(CACHE_HAVE_VAC) 301 #define M68K_CACHEOPS_MACHDEP 302 #endif 303 304 #ifdef CACHE_HAVE_PAC 305 #define M68K_CACHEOPS_MACHDEP_PCIA 306 #endif 307 308 #ifdef CACHE_HAVE_VAC 309 #define M68K_CACHEOPS_MACHDEP_DCIA 310 #define M68K_CACHEOPS_MACHDEP_DCIS 311 #define M68K_CACHEOPS_MACHDEP_DCIU 312 #define M68K_CACHEOPS_MACHDEP_TBIA 313 #define M68K_CACHEOPS_MACHDEP_TBIS 314 #define M68K_CACHEOPS_MACHDEP_TBIAS 315 #define M68K_CACHEOPS_MACHDEP_TBIAU 316 #endif 317 318 #endif /* _HP300_CPU_H_ */ 319
Indexes created Fri Sep 26 20:09:58 GMT 2025