1 /* $NetBSD: cpu.h,v 1.58 2008/01/28 16:21:20 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 cpuid_t ci_cpuid; 107 int ci_mtx_count; 108 int ci_mtx_oldspl; 109 int ci_want_resched; 110 }; 111 112 extern struct cpu_info cpu_info_store; 113 114 #define curcpu() (&cpu_info_store) 115 116 /* 117 * definitions of cpu-dependent requirements 118 * referenced in generic code 119 */ 120 #define cpu_swapin(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_PC(framep) ((framep)->pc) 139 #if 0 140 /* We would like to do it this way... */ 141 #define CLKF_INTR(framep) (((framep)->sr & PSL_M) == 0) 142 #else 143 /* but until we start using PSL_M, we have to do this instead */ 144 #include <machine/intr.h> 145 #define CLKF_INTR(framep) (idepth > 1) /* 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 #define cpu_need_resched(ci, flags) \ 154 do { ci->ci_want_resched = 1; aston(); } while (/* CONSTCOND */0) 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 cpu_need_proftick(l) \ 162 do { (l)->l_flag |= LP_OWEUPC; aston(); } while (/* CONSTCOND */0) 163 164 /* 165 * Notify the current process (p) that it has a signal pending, 166 * process as soon as possible. 167 */ 168 #define cpu_signotify(l) aston() 169 170 extern int astpending; /* need to trap before returning to user mode */ 171 #define aston() (astpending++) 172 173 #endif /* _KERNEL */ 174 175 /* 176 * CTL_MACHDEP definitions. 177 */ 178 #define CPU_CONSDEV 1 /* dev_t: console terminal device */ 179 #define CPU_MAXID 2 /* number of valid machdep ids */ 180 181 #define CTL_MACHDEP_NAMES { \ 182 { 0, 0 }, \ 183 { "console_device", CTLTYPE_STRUCT }, \ 184 } 185 186 /* 187 * The rest of this should probably be moved to <machine/hp300spu.h>, 188 * although some of it could probably be put into generic 68k headers. 189 */ 190 191 #ifdef _KERNEL 192 extern uint8_t *intiobase, *intiolimit, *extiobase; 193 extern void (*vectab[])(void); 194 195 struct fpframe; 196 197 /* locore.s functions */ 198 void m68881_save(struct fpframe *); 199 void m68881_restore(struct fpframe *); 200 int suline(void *, 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(void *); 212 int badbaddr(void *); 213 214 /* what is this supposed to do? i.e. how is it different than startrtclock? */ 215 #define enablertclock() 216 217 #endif 218 219 /* physical memory sections */ 220 #define ROMBASE (0x00000000) 221 #define INTIOBASE (0x00400000) 222 #define INTIOTOP (0x00600000) 223 #define EXTIOBASE (0x00600000) 224 #define EXTIOTOP (0x20000000) 225 #define MAXADDR (0xFFFFF000) 226 227 /* 228 * Internal IO space: 229 * 230 * Ranges from 0x400000 to 0x600000 (IIOMAPSIZE). 231 * 232 * Internal IO space is mapped in the kernel from ``intiobase'' to 233 * ``intiolimit'' (defined in locore.s). Since it is always mapped, 234 * conversion between physical and kernel virtual addresses is easy. 235 */ 236 #define ISIIOVA(va) \ 237 ((uint8_t *)(va) >= intiobase && (uint8_t *)(va) < intiolimit) 238 #define IIOV(pa) ((paddr_t)(pa)-INTIOBASE+(vaddr_t)intiobase) 239 #define IIOP(va) ((vaddr_t)(va)-(vaddr_t)intiobase+INTIOBASE) 240 #define IIOPOFF(pa) ((paddr_t)(pa)-INTIOBASE) 241 #define IIOMAPSIZE btoc(INTIOTOP-INTIOBASE) /* 2mb */ 242 243 /* 244 * External IO space: 245 * 246 * DIO ranges from select codes 0-63 at physical addresses given by: 247 * 0x600000 + (sc - 32) * 0x10000 248 * DIO cards are addressed in the range 0-31 [0x600000-0x800000) for 249 * their control space and the remaining areas, [0x200000-0x400000) and 250 * [0x800000-0x1000000), are for additional space required by a card; 251 * e.g. a display framebuffer. 252 * 253 * DIO-II ranges from select codes 132-255 at physical addresses given by: 254 * 0x1000000 + (sc - 132) * 0x400000 255 * The address range of DIO-II space is thus [0x1000000-0x20000000). 256 * 257 * DIO/DIO-II space is too large to map in its entirety, instead devices 258 * are mapped into kernel virtual address space allocated from a range 259 * of EIOMAPSIZE pages (vmparam.h) starting at ``extiobase''. 260 */ 261 #define DIOBASE (0x600000) 262 #define DIOTOP (0x1000000) 263 #define DIOCSIZE (0x10000) 264 #define DIOIIBASE (0x01000000) 265 #define DIOIITOP (0x20000000) 266 #define DIOIICSIZE (0x00400000) 267 268 /* 269 * HP MMU 270 */ 271 #define MMUBASE IIOPOFF(0x5F4000) 272 #define MMUSSTP 0x0 273 #define MMUUSTP 0x4 274 #define MMUTBINVAL 0x8 275 #define MMUSTAT 0xC 276 #define MMUCMD MMUSTAT 277 278 #define MMU_UMEN 0x0001 /* enable user mapping */ 279 #define MMU_SMEN 0x0002 /* enable supervisor mapping */ 280 #define MMU_CEN 0x0004 /* enable data cache */ 281 #define MMU_BERR 0x0008 /* bus error */ 282 #define MMU_IEN 0x0020 /* enable instruction cache */ 283 #define MMU_FPE 0x0040 /* enable 68881 FP coprocessor */ 284 #define MMU_WPF 0x2000 /* write protect fault */ 285 #define MMU_PF 0x4000 /* page fault */ 286 #define MMU_PTF 0x8000 /* page table fault */ 287 288 #define MMU_FAULT (MMU_PTF|MMU_PF|MMU_WPF|MMU_BERR) 289 #define MMU_ENAB (MMU_UMEN|MMU_SMEN|MMU_IEN|MMU_FPE) 290 291 #if defined(CACHE_HAVE_PAC) || defined(CACHE_HAVE_VAC) 292 #define M68K_CACHEOPS_MACHDEP 293 #endif 294 295 #ifdef CACHE_HAVE_PAC 296 #define M68K_CACHEOPS_MACHDEP_PCIA 297 #endif 298 299 #ifdef CACHE_HAVE_VAC 300 #define M68K_CACHEOPS_MACHDEP_DCIA 301 #define M68K_CACHEOPS_MACHDEP_DCIS 302 #define M68K_CACHEOPS_MACHDEP_DCIU 303 #define M68K_CACHEOPS_MACHDEP_TBIA 304 #define M68K_CACHEOPS_MACHDEP_TBIS 305 #define M68K_CACHEOPS_MACHDEP_TBIAS 306 #define M68K_CACHEOPS_MACHDEP_TBIAU 307 #endif 308 309 #endif /* _HP300_CPU_H_ */ 310