cpu.h revision 1.28
1 /* $NetBSD: cpu.h,v 1.28 2003/08/07 16:28:41 agc 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 _MACHINE_CPU_H_ 80 #define _MACHINE_CPU_H_ 81 82 /* 83 * Exported definitions unique to mvme68k/68k cpu support. 84 */ 85 86 #if defined(_KERNEL_OPT) 87 #include "opt_lockdebug.h" 88 #endif 89 90 /* 91 * Get common m68k CPU definitions. 92 */ 93 #include <m68k/cpu.h> 94 #define M68K_MMU_MOTOROLA 95 96 #include <sys/sched.h> 97 struct cpu_info { 98 struct schedstate_percpu ci_schedstate; /* scheduler state */ 99 #if defined(DIAGNOSTIC) || defined(LOCKDEBUG) 100 u_long ci_spin_locks; /* # of spin locks held */ 101 u_long ci_simple_locks; /* # of simple locks held */ 102 #endif 103 }; 104 105 #ifdef _KERNEL 106 extern struct cpu_info cpu_info_store; 107 108 #define curcpu() (&cpu_info_store) 109 110 /* 111 * definitions of cpu-dependent requirements 112 * referenced in generic code 113 */ 114 #define cpu_swapin(p) /* nothing */ 115 #define cpu_wait(p) /* nothing */ 116 #define cpu_swapout(p) /* nothing */ 117 #define cpu_number() 0 118 119 void cpu_proc_fork(struct proc *, struct proc *); 120 121 /* 122 * Arguments to hardclock and gatherstats encapsulate the previous 123 * machine state in an opaque clockframe. One the mvme68k, we use 124 * what the hardware pushes on an interrupt (frame format 0). 125 */ 126 struct clockframe { 127 u_short sr; /* sr at time of interrupt */ 128 u_long pc; /* pc at time of interrupt */ 129 u_short fmt:4, 130 vec:12; /* vector offset (4-word frame) */ 131 } __attribute__((packed)); 132 133 #define CLKF_USERMODE(framep) (((framep)->sr & PSL_S) == 0) 134 #define CLKF_BASEPRI(framep) (((framep)->sr & PSL_IPL) == 0) 135 #define CLKF_PC(framep) ((framep)->pc) 136 137 /* 138 * The clock interrupt handler can determine if it's a nested 139 * interrupt by checking for interrupt_depth > 1. 140 * (Remember, the clock interrupt handler itself will cause the 141 * depth counter to be incremented). 142 */ 143 extern volatile unsigned int interrupt_depth; 144 #define CLKF_INTR(framep) (interrupt_depth > 1) 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 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 need_proftick(p) { (p)->p_flag |= P_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 signotify(p) 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 #ifdef _KERNEL 184 /* 185 * Associate MVME models with CPU types. 186 */ 187 #define MVME68K 1 188 189 /* 190 * MVME-147; 68030 CPU 191 */ 192 #if defined(MVME147) && !defined(M68030) 193 #define M68030 194 #endif 195 196 /* 197 * MVME-162/166/167; 68040 CPU 198 */ 199 #if (defined(MVME162) || defined(MVME167)) && !defined(M68040) 200 #define M68040 201 #endif 202 203 /* 204 * MVME-172/177; 68060 CPU 205 */ 206 #if (defined(MVME172) || defined(MVME177)) && !defined(M68060) 207 #define M68060 208 #endif 209 #endif /* _KERNEL */ 210 211 /* 212 * Values for machineid; these match the Bug's values. 213 */ 214 #define MVME_147 0x147 215 #define MVME_162 0x162 216 #define MVME_166 0x166 217 #define MVME_167 0x167 218 #define MVME_172 0x172 219 #define MVME_177 0x177 220 221 #ifdef _KERNEL 222 extern int machineid; 223 extern int cpuspeed; 224 extern char *intiobase, *intiolimit; 225 extern u_int intiobase_phys, intiotop_phys; 226 extern u_long ether_data_buff_size; 227 extern u_char mvme_ea[6]; 228 229 struct frame; 230 struct pcb; 231 void doboot __P((int)) 232 __attribute__((__noreturn__)); 233 int nmihand __P((void *)); 234 void mvme68k_abort __P((const char *)); 235 void physaccess __P((caddr_t, caddr_t, int, int)); 236 void physunaccess __P((caddr_t, int)); 237 void *iomap __P((u_long, size_t)); 238 void iounmap __P((void *, size_t)); 239 int kvtop __P((caddr_t)); 240 void savectx __P((struct pcb *)); 241 void switch_exit __P((struct lwp *)); 242 void switch_lwp_exit __P((struct lwp *)); 243 void proc_trampoline __P((void)); 244 void loadustp __P((paddr_t)); 245 246 /* Prototypes from sys_machdep.c: */ 247 int cachectl1 __P((unsigned long, vaddr_t, size_t, struct proc *)); 248 int dma_cachectl __P((caddr_t, int)); 249 250 /* physical memory addresses where mvme147's onboard devices live */ 251 #define INTIOBASE147 (0xfffe0000u) 252 #define INTIOTOP147 (0xfffe5000u) 253 254 /* ditto for mvme1[67][27] */ 255 #define INTIOBASE1xx (0xfff40000u) 256 #define INTIOTOP1xx (0xfffd0000u) 257 258 #endif /* _KERNEL */ 259 260 #endif /* _MACHINE_CPU_H_ */ 261
Indexes created Mon Sep 29 21:09:56 GMT 2025