cpu.h revision 1.1
1 /* $NetBSD: cpu.h,v 1.1 1999/12/09 14:53:10 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 /* 53 * Get common m68k CPU definitions. 54 */ 55 #include <m68k/cpu.h> 56 57 /* 58 * XXX news1700 L2 cache would be corrupted with DC_BE and IC_BE... 59 * XXX Should these be defined in machine/cpu.h? 60 */ 61 #undef CACHE_ON 62 #undef CACHE_CLR 63 #undef IC_CLEAR 64 #undef DC_CLEAR 65 #define CACHE_ON (DC_WA|DC_CLR|DC_ENABLE|IC_CLR|IC_ENABLE) 66 #define CACHE_CLR CACHE_ON 67 #define IC_CLEAR (DC_WA|DC_ENABLE|IC_CLR|IC_ENABLE) 68 #define DC_CLEAR (DC_WA|DC_CLR|DC_ENABLE|IC_ENABLE) 69 70 /* 71 * Get interrupt glue. 72 */ 73 #include <machine/intr.h> 74 75 #define M68K_MMU_MOTOROLA 76 77 #if defined(news1700) 78 #define CACHE_HAVE_PAC 79 #endif 80 81 /* 82 * definitions of cpu-dependent requirements 83 * referenced in generic code 84 */ 85 #define cpu_swapin(p) /* nothing */ 86 #define cpu_wait(p) /* nothing */ 87 #define cpu_swapout(p) /* nothing */ 88 #define cpu_number() 0 89 90 /* 91 * Arguments to hardclock and gatherstats encapsulate the previous 92 * machine state in an opaque clockframe. One the hp300, we use 93 * what the hardware pushes on an interrupt (frame format 0). 94 */ 95 struct clockframe { 96 u_short sr; /* sr at time of interrupt */ 97 u_long pc; /* pc at time of interrupt */ 98 u_short vo; /* vector offset (4-word frame) */ 99 }; 100 101 #define CLKF_USERMODE(framep) (((framep)->sr & PSL_S) == 0) 102 #define CLKF_BASEPRI(framep) (((framep)->sr & PSL_IPL) == 0) 103 #define CLKF_PC(framep) ((framep)->pc) 104 #if 0 105 /* We would like to do it this way... */ 106 #define CLKF_INTR(framep) (((framep)->sr & PSL_M) == 0) 107 #else 108 /* but until we start using PSL_M, we have to do this instead */ 109 #define CLKF_INTR(framep) (0) /* XXX */ 110 #endif 111 112 113 /* 114 * Preempt the current process if in interrupt from user mode, 115 * or after the current trap/syscall if in system mode. 116 */ 117 extern int want_resched; /* resched() was called */ 118 #define need_resched() { want_resched++; aston(); } 119 120 /* 121 * Give a profiling tick to the current process when the user profiling 122 * buffer pages are invalid. On the hp300, request an ast to send us 123 * through trap, marking the proc as needing a profiling tick. 124 */ 125 #define need_proftick(p) { (p)->p_flag |= P_OWEUPC; aston(); } 126 127 /* 128 * Notify the current process (p) that it has a signal pending, 129 * process as soon as possible. 130 */ 131 #define signotify(p) aston() 132 133 extern int astpending; /* need to trap before returning to user mode */ 134 #define aston() (astpending++) 135 136 /* 137 * CTL_MACHDEP definitions. 138 */ 139 #define CPU_CONSDEV 1 /* dev_t: console terminal device */ 140 #define CPU_MAXID 2 /* number of valid machdep ids */ 141 142 #define CTL_MACHDEP_NAMES { \ 143 { 0, 0 }, \ 144 { "console_device", CTLTYPE_STRUCT }, \ 145 } 146 147 #ifdef _KERNEL 148 149 #if defined(news1700) && !defined(M68030) 150 #define M68030 151 #endif 152 153 #endif 154 155 #ifdef _KERNEL 156 extern int machineid; 157 extern int cpuspeed; 158 extern char *intiobase, *intiolimit; 159 extern u_int intiobase_phys, intiotop_phys; 160 extern u_int extiobase_phys, extiotop_phys; 161 extern u_int intrcnt[]; 162 163 extern void (*vectab[]) __P((void)); 164 165 struct frame; 166 struct fpframe; 167 struct pcb; 168 169 /* locore.s functions */ 170 void m68881_save __P((struct fpframe *)); 171 void m68881_restore __P((struct fpframe *)); 172 void DCIA __P((void)); 173 void DCIS __P((void)); 174 void DCIU __P((void)); 175 void ICIA __P((void)); 176 void ICPA __P((void)); 177 void PCIA __P((void)); 178 void TBIA __P((void)); 179 void TBIS __P((vaddr_t)); 180 void TBIAS __P((void)); 181 void TBIAU __P((void)); 182 183 int suline __P((caddr_t, caddr_t)); 184 void savectx __P((struct pcb *)); 185 void switch_exit __P((struct proc *)); 186 void proc_trampoline __P((void)); 187 void loadustp __P((int)); 188 void badtrap __P((void)); 189 void intrhand_vectored __P((void)); 190 int getsr __P((void)); 191 192 193 void doboot __P((int)) 194 __attribute__((__noreturn__)); 195 void nmihand __P((struct frame *)); 196 void ecacheon __P((void)); 197 void ecacheoff __P((void)); 198 199 /* clock.c functions */ 200 #if 0 /* XXX not yet */ 201 void news68k_calibrate_delay __P((void)); 202 #endif 203 204 /* machdep.c functions */ 205 int badaddr __P((caddr_t, int)); 206 int badbaddr __P((caddr_t)); 207 208 /* sys_machdep.c functions */ 209 int cachectl1 __P((unsigned long, vaddr_t, size_t, struct proc *)); 210 211 /* vm_machdep.c functions */ 212 void physaccess __P((caddr_t, caddr_t, int, int)); 213 void physunaccess __P((caddr_t, int)); 214 int kvtop __P((caddr_t)); 215 216 /* trap.c functions */ 217 void child_return __P((void *)); 218 219 #endif 220 221 /* physical memory sections */ 222 #define ROMBASE (0xe0000000) 223 #define INTIOBASE1700 (0xe0c00000) 224 #define INTIOTOP1700 (0xe1d00000) /* XXX */ 225 #define EXTIOBASE1700 (0xf0f00000) 226 #define EXTIOTOP1700 (0xf1000000) /* XXX */ 227 #define MAXADDR (0xfffff000) 228 229 /* 230 * Internal IO space: 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 ((char *)(va) >= intiobase && (char *)(va) < intiolimit) 238 #define IIOV(pa) (((u_int)(pa) - intiobase_phys) + (u_int)intiobase) 239 #define IIOP(va) (((u_int)(va) - (u_int)intiobase) + intiobase_phys) 240 #define IIOPOFF(pa) ((u_int)(pa) - intiobase_phys) 241 242 #endif /* !_NEWS68K_CPU_H_ */ 243
Indexes created Thu Sep 25 08:09:54 GMT 2025