cpu.h revision 1.6
1 /* $NetBSD: cpu.h,v 1.6 2000/10/04 16:26:43 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 #endif 76 77 /* 78 * Get interrupt glue. 79 */ 80 #include <machine/intr.h> 81 82 #include <sys/sched.h> 83 struct cpu_info { 84 struct schedstate_percpu ci_schedstate; /* scheduler state */ 85 #if defined(DIAGNOSTIC) || defined(LOCKDEBUG) 86 u_long ci_spin_locks; /* # of spin locks held */ 87 u_long ci_simple_locks; /* # of simple locks held */ 88 #endif 89 }; 90 91 #ifdef _KERNEL 92 extern struct cpu_info cpu_info_store; 93 94 #define curcpu() (&cpu_info_store) 95 96 /* 97 * definitions of cpu-dependent requirements 98 * referenced in generic code 99 */ 100 #define cpu_swapin(p) /* nothing */ 101 #define cpu_wait(p) /* nothing */ 102 #define cpu_swapout(p) /* nothing */ 103 #define cpu_number() 0 104 105 /* 106 * Arguments to hardclock and gatherstats encapsulate the previous 107 * machine state in an opaque clockframe. One the hp300, we use 108 * what the hardware pushes on an interrupt (frame format 0). 109 */ 110 struct clockframe { 111 u_short sr; /* sr at time of interrupt */ 112 u_long pc; /* pc at time of interrupt */ 113 u_short vo; /* vector offset (4-word frame) */ 114 }; 115 116 #define CLKF_USERMODE(framep) (((framep)->sr & PSL_S) == 0) 117 #define CLKF_BASEPRI(framep) (((framep)->sr & PSL_IPL) == 0) 118 #define CLKF_PC(framep) ((framep)->pc) 119 #if 0 120 /* We would like to do it this way... */ 121 #define CLKF_INTR(framep) (((framep)->sr & PSL_M) == 0) 122 #else 123 /* but until we start using PSL_M, we have to do this instead */ 124 #define CLKF_INTR(framep) (0) /* XXX */ 125 #endif 126 127 128 /* 129 * Preempt the current process if in interrupt from user mode, 130 * or after the current trap/syscall if in system mode. 131 */ 132 extern int want_resched; /* resched() was called */ 133 #define need_resched(ci) do { want_resched++; aston(); } while(0) 134 135 /* 136 * Give a profiling tick to the current process when the user profiling 137 * buffer pages are invalid. On the hp300, request an ast to send us 138 * through trap, marking the proc as needing a profiling tick. 139 */ 140 #define need_proftick(p) do { (p)->p_flag |= P_OWEUPC; aston(); } while(0) 141 142 /* 143 * Notify the current process (p) that it has a signal pending, 144 * process as soon as possible. 145 */ 146 #define signotify(p) aston() 147 148 extern int astpending; /* need to trap before returning to user mode */ 149 extern volatile u_char *ctrl_ast; 150 #define aston() do { astpending++; *ctrl_ast = 0xff; } while(0) 151 152 #endif /* _KERNEL */ 153 154 /* 155 * CTL_MACHDEP definitions. 156 */ 157 #define CPU_CONSDEV 1 /* dev_t: console terminal device */ 158 #define CPU_MAXID 2 /* number of valid machdep ids */ 159 160 #define CTL_MACHDEP_NAMES { \ 161 { 0, 0 }, \ 162 { "console_device", CTLTYPE_STRUCT }, \ 163 } 164 165 #ifdef _KERNEL 166 167 #if defined(news1700) || defined(news1200) 168 #ifndef M68030 169 #define M68030 170 #endif 171 #define M68K_MMU_MOTOROLA 172 #endif 173 174 #if defined(news1700) 175 #define CACHE_HAVE_PAC 176 #endif 177 178 #endif 179 180 #ifdef _KERNEL 181 extern int systype; 182 #define NEWS1700 0 183 #define NEWS1200 1 184 185 extern int cpuspeed; 186 extern char *intiobase, *intiolimit; 187 extern u_int intiobase_phys, intiotop_phys; 188 extern u_int extiobase_phys, extiotop_phys; 189 extern u_int intrcnt[]; 190 191 extern void (*vectab[]) __P((void)); 192 193 struct frame; 194 struct fpframe; 195 struct pcb; 196 197 /* locore.s functions */ 198 void m68881_save __P((struct fpframe *)); 199 void m68881_restore __P((struct fpframe *)); 200 void DCIA __P((void)); 201 void DCIS __P((void)); 202 void DCIU __P((void)); 203 void ICIA __P((void)); 204 void ICPA __P((void)); 205 void PCIA __P((void)); 206 void TBIA __P((void)); 207 void TBIS __P((vaddr_t)); 208 void TBIAS __P((void)); 209 void TBIAU __P((void)); 210 211 int suline __P((caddr_t, caddr_t)); 212 void savectx __P((struct pcb *)); 213 void switch_exit __P((struct proc *)); 214 void proc_trampoline __P((void)); 215 void loadustp __P((int)); 216 void badtrap __P((void)); 217 void intrhand_vectored __P((void)); 218 int getsr __P((void)); 219 220 221 void doboot __P((int)) 222 __attribute__((__noreturn__)); 223 void nmihand __P((struct frame *)); 224 void ecacheon __P((void)); 225 void ecacheoff __P((void)); 226 227 /* machdep.c functions */ 228 int badaddr __P((caddr_t, int)); 229 int badbaddr __P((caddr_t)); 230 231 /* sys_machdep.c functions */ 232 int cachectl1 __P((unsigned long, vaddr_t, size_t, struct proc *)); 233 234 /* vm_machdep.c functions */ 235 void physaccess __P((caddr_t, caddr_t, int, int)); 236 void physunaccess __P((caddr_t, int)); 237 int kvtop __P((caddr_t)); 238 239 /* trap.c functions */ 240 void child_return __P((void *)); 241 242 #endif 243 244 /* physical memory sections */ 245 #define ROMBASE (0xe0000000) 246 247 #define INTIOBASE1700 (0xe0c00000) 248 #define INTIOTOP1700 (0xe1d00000) /* XXX */ 249 #define EXTIOBASE1700 (0xf0f00000) 250 #define EXTIOTOP1700 (0xf1000000) /* XXX */ 251 252 #define INTIOBASE1200 (0xe1000000) 253 #define INTIOTOP1200 (0xe1d00000) /* XXX */ 254 #define EXTIOBASE1200 (0xe4000000) 255 #define EXTIOTOP1200 (0xe4020000) /* XXX */ 256 257 #define MAXADDR (0xfffff000) 258 259 /* 260 * Internal IO space: 261 * 262 * Internal IO space is mapped in the kernel from ``intiobase'' to 263 * ``intiolimit'' (defined in locore.s). Since it is always mapped, 264 * conversion between physical and kernel virtual addresses is easy. 265 */ 266 #define ISIIOVA(va) \ 267 ((char *)(va) >= intiobase && (char *)(va) < intiolimit) 268 #define IIOV(pa) (((u_int)(pa) - intiobase_phys) + (u_int)intiobase) 269 #define ISIIOPA(pa) \ 270 ((u_int)(pa) >= intiobase_phys && (u_int)(pa) < intiotop_phys) 271 #define IIOP(va) (((u_int)(va) - (u_int)intiobase) + intiobase_phys) 272 #define IIOPOFF(pa) ((u_int)(pa) - intiobase_phys) 273 274 /* XXX EIO space mapping should be modified like hp300 XXX */ 275 #define EIOSIZE (extiotop_phys - extiobase_phys) 276 #define ISEIOVA(va) \ 277 ((char *)(va) >= extiobase && (char *)(va) < (char *)EIOSIZE) 278 #define EIOV(pa) (((u_int)(pa) - extiobase_phys) + (u_int)extiobase) 279 280 #endif /* !_NEWS68K_CPU_H_ */ 281
Indexes created Thu Sep 25 16:09:42 GMT 2025