cpu.h revision 1.7
1 /* $NetBSD: cpu.h,v 1.7 2000/11/09 14:17:19 tsutsui Exp $ */ 2 3 /* 4 * Copyright (c) 1988 University of Utah. 5 * Copyright (c) 1982, 1990, 1993 6 * The Regents of the University of California. All rights reserved. 7 * 8 * This code is derived from software contributed to Berkeley by 9 * the Systems Programming Group of the University of Utah Computer 10 * Science Department. 11 * 12 * Redistribution and use in source and binary forms, with or without 13 * modification, are permitted provided that the following conditions 14 * are met: 15 * 1. Redistributions of source code must retain the above copyright 16 * notice, this list of conditions and the following disclaimer. 17 * 2. Redistributions in binary form must reproduce the above copyright 18 * notice, this list of conditions and the following disclaimer in the 19 * documentation and/or other materials provided with the distribution. 20 * 3. All advertising materials mentioning features or use of this software 21 * must display the following acknowledgement: 22 * This product includes software developed by the University of 23 * California, Berkeley and its contributors. 24 * 4. Neither the name of the University nor the names of its contributors 25 * may be used to endorse or promote products derived from this software 26 * without specific prior written permission. 27 * 28 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 29 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 30 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 31 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 32 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 33 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 34 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 35 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 36 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 37 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 38 * SUCH DAMAGE. 39 * 40 * from: Utah $Hdr: cpu.h 1.16 91/03/25$ 41 * 42 * @(#)cpu.h 8.4 (Berkeley) 1/5/94 43 */ 44 45 #ifndef _NEWS68K_CPU_H_ 46 #define _NEWS68K_CPU_H_ 47 48 /* 49 * Exported definitions unique to news68k cpu support. 50 */ 51 52 #if defined(_KERNEL) && !defined(_LKM) 53 #include "opt_lockdebug.h" 54 #endif 55 56 /* 57 * Get common m68k CPU definitions. 58 */ 59 #include <m68k/cpu.h> 60 61 #ifdef news1700 62 /* 63 * XXX news1700 L2 cache would be corrupted with DC_BE and IC_BE... 64 * XXX Should these be defined in machine/cpu.h? 65 */ 66 #undef CACHE_ON 67 #undef CACHE_CLR 68 #undef IC_CLEAR 69 #undef DC_CLEAR 70 #define CACHE_ON (DC_WA|DC_CLR|DC_ENABLE|IC_CLR|IC_ENABLE) 71 #define CACHE_CLR CACHE_ON 72 #define IC_CLEAR (DC_WA|DC_ENABLE|IC_CLR|IC_ENABLE) 73 #define DC_CLEAR (DC_WA|DC_CLR|DC_ENABLE|IC_ENABLE) 74 75 #define DCIC_CLR (DC_CLR|IC_CLR) 76 #define CACHE_BE (DC_BE|IC_BE) 77 78 #endif 79 80 /* 81 * Get interrupt glue. 82 */ 83 #include <machine/intr.h> 84 85 #include <sys/sched.h> 86 struct cpu_info { 87 struct schedstate_percpu ci_schedstate; /* scheduler state */ 88 #if defined(DIAGNOSTIC) || defined(LOCKDEBUG) 89 u_long ci_spin_locks; /* # of spin locks held */ 90 u_long ci_simple_locks; /* # of simple locks held */ 91 #endif 92 }; 93 94 #ifdef _KERNEL 95 extern struct cpu_info cpu_info_store; 96 97 #define curcpu() (&cpu_info_store) 98 99 /* 100 * definitions of cpu-dependent requirements 101 * referenced in generic code 102 */ 103 #define cpu_swapin(p) /* nothing */ 104 #define cpu_wait(p) /* nothing */ 105 #define cpu_swapout(p) /* nothing */ 106 #define cpu_number() 0 107 108 /* 109 * Arguments to hardclock and gatherstats encapsulate the previous 110 * machine state in an opaque clockframe. One the hp300, we use 111 * what the hardware pushes on an interrupt (frame format 0). 112 */ 113 struct clockframe { 114 u_short sr; /* sr at time of interrupt */ 115 u_long pc; /* pc at time of interrupt */ 116 u_short vo; /* vector offset (4-word frame) */ 117 }; 118 119 #define CLKF_USERMODE(framep) (((framep)->sr & PSL_S) == 0) 120 #define CLKF_BASEPRI(framep) (((framep)->sr & PSL_IPL) == 0) 121 #define CLKF_PC(framep) ((framep)->pc) 122 #if 0 123 /* We would like to do it this way... */ 124 #define CLKF_INTR(framep) (((framep)->sr & PSL_M) == 0) 125 #else 126 /* but until we start using PSL_M, we have to do this instead */ 127 #define CLKF_INTR(framep) (0) /* XXX */ 128 #endif 129 130 131 /* 132 * Preempt the current process if in interrupt from user mode, 133 * or after the current trap/syscall if in system mode. 134 */ 135 extern int want_resched; /* resched() was called */ 136 #define need_resched(ci) do { want_resched++; aston(); } while(0) 137 138 /* 139 * Give a profiling tick to the current process when the user profiling 140 * buffer pages are invalid. On the hp300, request an ast to send us 141 * through trap, marking the proc as needing a profiling tick. 142 */ 143 #define need_proftick(p) do { (p)->p_flag |= P_OWEUPC; aston(); } while(0) 144 145 /* 146 * Notify the current process (p) that it has a signal pending, 147 * process as soon as possible. 148 */ 149 #define signotify(p) aston() 150 151 extern int astpending; /* need to trap before returning to user mode */ 152 extern volatile u_char *ctrl_ast; 153 #define aston() do { astpending++; *ctrl_ast = 0xff; } while(0) 154 155 #endif /* _KERNEL */ 156 157 /* 158 * CTL_MACHDEP definitions. 159 */ 160 #define CPU_CONSDEV 1 /* dev_t: console terminal device */ 161 #define CPU_MAXID 2 /* number of valid machdep ids */ 162 163 #define CTL_MACHDEP_NAMES { \ 164 { 0, 0 }, \ 165 { "console_device", CTLTYPE_STRUCT }, \ 166 } 167 168 #ifdef _KERNEL 169 170 #if defined(news1700) || defined(news1200) 171 #ifndef M68030 172 #define M68030 173 #endif 174 #define M68K_MMU_MOTOROLA 175 #endif 176 177 #if defined(news1700) 178 #define CACHE_HAVE_PAC 179 #endif 180 181 #endif 182 183 #ifdef _KERNEL 184 extern int systype; 185 #define NEWS1700 0 186 #define NEWS1200 1 187 188 extern int cpuspeed; 189 extern char *intiobase, *intiolimit, *extiobase; 190 extern u_int intiobase_phys, intiotop_phys; 191 extern u_int extiobase_phys, extiotop_phys; 192 extern u_int intrcnt[]; 193 194 extern void (*vectab[]) __P((void)); 195 196 struct frame; 197 struct fpframe; 198 struct pcb; 199 200 /* locore.s functions */ 201 void m68881_save __P((struct fpframe *)); 202 void m68881_restore __P((struct fpframe *)); 203 void DCIA __P((void)); 204 void DCIS __P((void)); 205 void DCIU __P((void)); 206 void ICIA __P((void)); 207 void ICPA __P((void)); 208 void PCIA __P((void)); 209 void TBIA __P((void)); 210 void TBIS __P((vaddr_t)); 211 void TBIAS __P((void)); 212 void TBIAU __P((void)); 213 214 int suline __P((caddr_t, caddr_t)); 215 void savectx __P((struct pcb *)); 216 void switch_exit __P((struct proc *)); 217 void proc_trampoline __P((void)); 218 void loadustp __P((int)); 219 void badtrap __P((void)); 220 void intrhand_vectored __P((void)); 221 int getsr __P((void)); 222 223 224 void doboot __P((int)) 225 __attribute__((__noreturn__)); 226 void nmihand __P((struct frame *)); 227 void ecacheon __P((void)); 228 void ecacheoff __P((void)); 229 230 /* machdep.c functions */ 231 int badaddr __P((caddr_t, int)); 232 int badbaddr __P((caddr_t)); 233 234 /* sys_machdep.c functions */ 235 int cachectl1 __P((unsigned long, vaddr_t, size_t, struct proc *)); 236 237 /* vm_machdep.c functions */ 238 void physaccess __P((caddr_t, caddr_t, int, int)); 239 void physunaccess __P((caddr_t, int)); 240 int kvtop __P((caddr_t)); 241 242 /* trap.c functions */ 243 void child_return __P((void *)); 244 245 #endif 246 247 /* physical memory sections */ 248 #define ROMBASE (0xe0000000) 249 250 #define INTIOBASE1700 (0xe0c00000) 251 #define INTIOTOP1700 (0xe1d00000) /* XXX */ 252 #define EXTIOBASE1700 (0xf0f00000) 253 #define EXTIOTOP1700 (0xf1000000) /* XXX */ 254 255 #define INTIOBASE1200 (0xe1000000) 256 #define INTIOTOP1200 (0xe1d00000) /* XXX */ 257 #define EXTIOBASE1200 (0xe4000000) 258 #define EXTIOTOP1200 (0xe4020000) /* XXX */ 259 260 #define MAXADDR (0xfffff000) 261 262 /* 263 * Internal IO space: 264 * 265 * Internal IO space is mapped in the kernel from ``intiobase'' to 266 * ``intiolimit'' (defined in locore.s). Since it is always mapped, 267 * conversion between physical and kernel virtual addresses is easy. 268 */ 269 #define ISIIOVA(va) \ 270 ((char *)(va) >= intiobase && (char *)(va) < intiolimit) 271 #define IIOV(pa) (((u_int)(pa) - intiobase_phys) + (u_int)intiobase) 272 #define ISIIOPA(pa) \ 273 ((u_int)(pa) >= intiobase_phys && (u_int)(pa) < intiotop_phys) 274 #define IIOP(va) (((u_int)(va) - (u_int)intiobase) + intiobase_phys) 275 #define IIOPOFF(pa) ((u_int)(pa) - intiobase_phys) 276 277 /* XXX EIO space mapping should be modified like hp300 XXX */ 278 #define EIOSIZE (extiotop_phys - extiobase_phys) 279 #define ISEIOVA(va) \ 280 ((char *)(va) >= extiobase && (char *)(va) < (char *)EIOSIZE) 281 #define EIOV(pa) (((u_int)(pa) - extiobase_phys) + (u_int)extiobase) 282 283 #endif /* !_NEWS68K_CPU_H_ */ 284
Indexes created Wed Sep 24 15:09:51 GMT 2025