cpu.h revision 1.53
1 /* $NetBSD: cpu.h,v 1.53 2024/01/16 01:26:34 thorpej 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. Neither the name of the University nor the names of its contributors 21 * may be used to endorse or promote products derived from this software 22 * without specific prior written permission. 23 * 24 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 25 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 26 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 27 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 28 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 29 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 30 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 31 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 32 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 33 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 34 * SUCH DAMAGE. 35 * 36 * from: Utah $Hdr: cpu.h 1.16 91/03/25$ 37 * 38 * @(#)cpu.h 8.4 (Berkeley) 1/5/94 39 */ 40 41 #ifndef _MACHINE_CPU_H_ 42 #define _MACHINE_CPU_H_ 43 44 #if defined(_KERNEL_OPT) 45 #include "opt_lockdebug.h" 46 #include "opt_m68k_arch.h" 47 #endif 48 49 /* 50 * Get common m68k CPU definitions. 51 */ 52 #include <m68k/cpu.h> 53 54 #if defined(_KERNEL) 55 /* 56 * Exported definitions unique to mvme68k/68k cpu support. 57 */ 58 #define M68K_MMU_MOTOROLA 59 60 /* 61 * Arguments to hardclock and gatherstats encapsulate the previous 62 * machine state in an opaque clockframe. On the mvme68k, we use 63 * what the locore.s glue puts on the stack before calling C-code. 64 */ 65 struct clockframe { 66 u_int cf_regs[4]; /* d0,d1,a0,a1 */ 67 u_short cf_sr; /* sr at time of interrupt */ 68 u_long cf_pc; /* pc at time of interrupt */ 69 u_short cf_vo; /* vector offset (4-word frame) */ 70 } __attribute__((packed)); 71 72 #define CLKF_USERMODE(framep) (((framep)->cf_sr & PSL_S) == 0) 73 #define CLKF_PC(framep) ((framep)->cf_pc) 74 75 /* 76 * The clock interrupt handler can determine if it's a nested 77 * interrupt by checking for interrupt_depth > 1. 78 * (Remember, the clock interrupt handler itself will cause the 79 * depth counter to be incremented). 80 */ 81 #define CLKF_INTR(framep) (idepth > 1) 82 83 84 /* 85 * Preempt the current process if in interrupt from user mode, 86 * or after the current trap/syscall if in system mode. 87 */ 88 #define cpu_need_resched(ci,l,flags) do { \ 89 __USE(flags); \ 90 aston(); \ 91 } while (/*CONSTCOND*/0) 92 93 /* 94 * Give a profiling tick to the current process when the user profiling 95 * buffer pages are invalid. On the mvme68k, request an ast to send us 96 * through trap, marking the proc as needing a profiling tick. 97 */ 98 #define cpu_need_proftick(l) \ 99 do { (l)->l_pflag |= LP_OWEUPC; aston(); } while (/* CONSTCOND */0) 100 101 /* 102 * Notify the current process (p) that it has a signal pending, 103 * process as soon as possible. 104 */ 105 #define cpu_signotify(l) aston() 106 107 extern int astpending; /* need to trap before returning to user mode */ 108 #define aston() (astpending++) 109 110 /* 111 * Associate MVME models with CPU types. 112 */ 113 #define MVME68K 1 114 115 /* 116 * MVME-147; 68030 CPU 117 */ 118 #if defined(MVME147) && !defined(M68030) 119 #define M68030 120 #endif 121 122 /* 123 * MVME-162/166/167; 68040 CPU 124 */ 125 #if (defined(MVME162) || defined(MVME167)) && !defined(M68040) 126 #define M68040 127 #endif 128 129 /* 130 * MVME-172/177; 68060 CPU 131 */ 132 #if (defined(MVME172) || defined(MVME177)) && !defined(M68060) 133 #define M68060 134 #endif 135 #endif /* _KERNEL */ 136 137 /* 138 * Values for machineid; these match the Bug's values. 139 */ 140 #define MVME_147 0x147 141 #define MVME_162 0x162 142 #define MVME_166 0x166 143 #define MVME_167 0x167 144 #define MVME_172 0x172 145 #define MVME_177 0x177 146 147 #ifdef _KERNEL 148 extern int machineid; 149 extern int cpuspeed; 150 extern char *intiobase, *intiolimit; 151 extern u_int intiobase_phys, intiotop_phys; 152 extern u_long ether_data_buff_size; 153 extern u_char mvme_ea[6]; 154 155 void doboot(int) 156 __attribute__((__noreturn__)); 157 int nmihand(void *); 158 void mvme68k_abort(const char *); 159 void *iomap(u_long, size_t); 160 void iounmap(void *, size_t); 161 162 /* physical memory addresses where mvme147's onboard devices live */ 163 #define INTIOBASE147 (0xfffe0000u) 164 #define INTIOTOP147 (0xfffe5000u) 165 166 /* ditto for mvme1[67][27] */ 167 #define INTIOBASE1xx (0xfff40000u) 168 #define INTIOTOP1xx (0xfffd0000u) 169 170 #endif /* _KERNEL */ 171 172 #endif /* _MACHINE_CPU_H_ */ 173
Indexes created Mon Sep 29 21:09:56 GMT 2025