cpu.h revision 1.48
1 /* $NetBSD: cpu.h,v 1.48 2007/02/10 02:38:34 tsutsui 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 int ci_mtx_count; 107 int ci_mtx_oldspl; 108 }; 109 110 extern struct cpu_info cpu_info_store; 111 112 #define curcpu() (&cpu_info_store) 113 114 /* 115 * definitions of cpu-dependent requirements 116 * referenced in generic code 117 */ 118 #define cpu_swapin(p) /* nothing */ 119 #define cpu_swapout(p) /* nothing */ 120 #define cpu_number() 0 121 122 void cpu_proc_fork(struct proc *, struct proc *); 123 124 /* 125 * Arguments to hardclock and gatherstats encapsulate the previous 126 * machine state in an opaque clockframe. One the hp300, we use 127 * what the hardware pushes on an interrupt (frame format 0). 128 */ 129 struct clockframe { 130 u_short sr; /* sr at time of interrupt */ 131 u_long pc; /* pc at time of interrupt */ 132 u_short vo; /* vector offset (4-word frame) */ 133 }; 134 135 #define CLKF_USERMODE(framep) (((framep)->sr & PSL_S) == 0) 136 #define CLKF_BASEPRI(framep) (((framep)->sr & PSL_IPL) == 0) 137 #define CLKF_PC(framep) ((framep)->pc) 138 #if 0 139 /* We would like to do it this way... */ 140 #define CLKF_INTR(framep) (((framep)->sr & PSL_M) == 0) 141 #else 142 /* but until we start using PSL_M, we have to do this instead */ 143 #define CLKF_INTR(framep) (0) /* XXX */ 144 #endif 145 146 147 /* 148 * Preempt the current process if in interrupt from user mode, 149 * or after the current trap/syscall if in system mode. 150 */ 151 extern int want_resched; /* resched() was called */ 152 #define cpu_need_resched(ci) { want_resched++; aston(); } 153 154 /* 155 * Give a profiling tick to the current process when the user profiling 156 * buffer pages are invalid. On the hp300, request an ast to send us 157 * through trap, marking the proc as needing a profiling tick. 158 */ 159 #define cpu_need_proftick(l) { (l)->l_flag |= LP_OWEUPC; aston(); } 160 161 /* 162 * Notify the current process (p) that it has a signal pending, 163 * process as soon as possible. 164 */ 165 #define cpu_signotify(l) aston() 166 167 extern int astpending; /* need to trap before returning to user mode */ 168 #define aston() (astpending++) 169 170 #endif /* _KERNEL */ 171 172 /* 173 * CTL_MACHDEP definitions. 174 */ 175 #define CPU_CONSDEV 1 /* dev_t: console terminal device */ 176 #define CPU_MAXID 2 /* number of valid machdep ids */ 177 178 #define CTL_MACHDEP_NAMES { \ 179 { 0, 0 }, \ 180 { "console_device", CTLTYPE_STRUCT }, \ 181 } 182 183 /* 184 * The rest of this should probably be moved to <machine/hp300spu.h>, 185 * although some of it could probably be put into generic 68k headers. 186 */ 187 188 #ifdef _KERNEL 189 extern char *intiobase, *intiolimit; 190 extern void (*vectab[])(void); 191 192 struct frame; 193 struct fpframe; 194 struct pcb; 195 196 /* locore.s functions */ 197 void m68881_save(struct fpframe *); 198 void m68881_restore(struct fpframe *); 199 int suline(caddr_t, caddr_t); 200 void savectx(struct pcb *); 201 void switch_exit(struct lwp *); 202 void switch_lwp_exit(struct lwp *); 203 void proc_trampoline(void); 204 void loadustp(int); 205 206 void doboot(void) __attribute__((__noreturn__)); 207 void ecacheon(void); 208 void ecacheoff(void); 209 210 /* clock.c functions */ 211 void hp300_calibrate_delay(void); 212 213 /* machdep.c functions */ 214 int badaddr(caddr_t); 215 int badbaddr(caddr_t); 216 217 /* sys_machdep.c functions */ 218 int cachectl1(unsigned long, vaddr_t, size_t, struct proc *); 219 220 /* vm_machdep.c functions */ 221 void physaccess(caddr_t, caddr_t, int, int); 222 void physunaccess(caddr_t, int); 223 int kvtop(caddr_t); 224 225 /* what is this supposed to do? i.e. how is it different than startrtclock? */ 226 #define enablertclock() 227 228 #endif 229 230 /* physical memory sections */ 231 #define ROMBASE (0x00000000) 232 #define INTIOBASE (0x00400000) 233 #define INTIOTOP (0x00600000) 234 #define EXTIOBASE (0x00600000) 235 #define EXTIOTOP (0x20000000) 236 #define MAXADDR (0xFFFFF000) 237 238 /* 239 * Internal IO space: 240 * 241 * Ranges from 0x400000 to 0x600000 (IIOMAPSIZE). 242 * 243 * Internal IO space is mapped in the kernel from ``intiobase'' to 244 * ``intiolimit'' (defined in locore.s). Since it is always mapped, 245 * conversion between physical and kernel virtual addresses is easy. 246 */ 247 #define ISIIOVA(va) \ 248 ((char *)(va) >= intiobase && (char *)(va) < intiolimit) 249 #define IIOV(pa) ((int)(pa)-INTIOBASE+(int)intiobase) 250 #define IIOP(va) ((int)(va)-(int)intiobase+INTIOBASE) 251 #define IIOPOFF(pa) ((int)(pa)-INTIOBASE) 252 #define IIOMAPSIZE btoc(INTIOTOP-INTIOBASE) /* 2mb */ 253 254 /* 255 * External IO space: 256 * 257 * DIO ranges from select codes 0-63 at physical addresses given by: 258 * 0x600000 + (sc - 32) * 0x10000 259 * DIO cards are addressed in the range 0-31 [0x600000-0x800000) for 260 * their control space and the remaining areas, [0x200000-0x400000) and 261 * [0x800000-0x1000000), are for additional space required by a card; 262 * e.g. a display framebuffer. 263 * 264 * DIO-II ranges from select codes 132-255 at physical addresses given by: 265 * 0x1000000 + (sc - 132) * 0x400000 266 * The address range of DIO-II space is thus [0x1000000-0x20000000). 267 * 268 * DIO/DIO-II space is too large to map in its entirety, instead devices 269 * are mapped into kernel virtual address space allocated from a range 270 * of EIOMAPSIZE pages (vmparam.h) starting at ``extiobase''. 271 */ 272 #define DIOBASE (0x600000) 273 #define DIOTOP (0x1000000) 274 #define DIOCSIZE (0x10000) 275 #define DIOIIBASE (0x01000000) 276 #define DIOIITOP (0x20000000) 277 #define DIOIICSIZE (0x00400000) 278 279 /* 280 * HP MMU 281 */ 282 #define MMUBASE IIOPOFF(0x5F4000) 283 #define MMUSSTP 0x0 284 #define MMUUSTP 0x4 285 #define MMUTBINVAL 0x8 286 #define MMUSTAT 0xC 287 #define MMUCMD MMUSTAT 288 289 #define MMU_UMEN 0x0001 /* enable user mapping */ 290 #define MMU_SMEN 0x0002 /* enable supervisor mapping */ 291 #define MMU_CEN 0x0004 /* enable data cache */ 292 #define MMU_BERR 0x0008 /* bus error */ 293 #define MMU_IEN 0x0020 /* enable instruction cache */ 294 #define MMU_FPE 0x0040 /* enable 68881 FP coprocessor */ 295 #define MMU_WPF 0x2000 /* write protect fault */ 296 #define MMU_PF 0x4000 /* page fault */ 297 #define MMU_PTF 0x8000 /* page table fault */ 298 299 #define MMU_FAULT (MMU_PTF|MMU_PF|MMU_WPF|MMU_BERR) 300 #define MMU_ENAB (MMU_UMEN|MMU_SMEN|MMU_IEN|MMU_FPE) 301 302 #if defined(CACHE_HAVE_PAC) || defined(CACHE_HAVE_VAC) 303 #define M68K_CACHEOPS_MACHDEP 304 #endif 305 306 #ifdef CACHE_HAVE_PAC 307 #define M68K_CACHEOPS_MACHDEP_PCIA 308 #endif 309 310 #ifdef CACHE_HAVE_VAC 311 #define M68K_CACHEOPS_MACHDEP_DCIA 312 #define M68K_CACHEOPS_MACHDEP_DCIS 313 #define M68K_CACHEOPS_MACHDEP_DCIU 314 #define M68K_CACHEOPS_MACHDEP_TBIA 315 #define M68K_CACHEOPS_MACHDEP_TBIS 316 #define M68K_CACHEOPS_MACHDEP_TBIAS 317 #define M68K_CACHEOPS_MACHDEP_TBIAU 318 #endif 319 320 #endif /* _HP300_CPU_H_ */ 321
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