1 /* $NetBSD: cpu.h,v 1.43 2009/10/21 21:12:01 rmind 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 #if defined(_KERNEL) 83 84 /* 85 * Exported definitions unique to mvme68k/68k cpu support. 86 */ 87 88 #if defined(_KERNEL_OPT) 89 #include "opt_lockdebug.h" 90 #endif 91 92 /* 93 * Get common m68k CPU definitions. 94 */ 95 #include <m68k/cpu.h> 96 #define M68K_MMU_MOTOROLA 97 98 #include <sys/cpu_data.h> 99 struct cpu_info { 100 struct cpu_data ci_data; /* MI per-cpu data */ 101 cpuid_t ci_cpuid; 102 int ci_mtx_count; 103 int ci_mtx_oldspl; 104 int ci_want_resched; 105 }; 106 107 extern struct cpu_info cpu_info_store; 108 109 #define curcpu() (&cpu_info_store) 110 111 /* 112 * definitions of cpu-dependent requirements 113 * referenced in generic code 114 */ 115 #define cpu_number() 0 116 117 void cpu_proc_fork(struct proc *, struct proc *); 118 119 /* 120 * Arguments to hardclock and gatherstats encapsulate the previous 121 * machine state in an opaque clockframe. One the mvme68k, we use 122 * what the hardware pushes on an interrupt (frame format 0). 123 */ 124 struct clockframe { 125 u_short sr; /* sr at time of interrupt */ 126 u_long pc; /* pc at time of interrupt */ 127 u_short fmt:4, 128 vec:12; /* vector offset (4-word frame) */ 129 } __attribute__((packed)); 130 131 #define CLKF_USERMODE(framep) (((framep)->sr & PSL_S) == 0) 132 #define CLKF_PC(framep) ((framep)->pc) 133 134 /* 135 * The clock interrupt handler can determine if it's a nested 136 * interrupt by checking for interrupt_depth > 1. 137 * (Remember, the clock interrupt handler itself will cause the 138 * depth counter to be incremented). 139 */ 140 extern volatile unsigned int interrupt_depth; 141 #define CLKF_INTR(framep) (interrupt_depth > 1) 142 143 144 /* 145 * Preempt the current process if in interrupt from user mode, 146 * or after the current trap/syscall if in system mode. 147 */ 148 #define cpu_need_resched(ci, flags) \ 149 do { ci->ci_want_resched++; aston(); } while (/* CONSTCOND */0) 150 151 /* 152 * Give a profiling tick to the current process when the user profiling 153 * buffer pages are invalid. On the hp300, request an ast to send us 154 * through trap, marking the proc as needing a profiling tick. 155 */ 156 #define cpu_need_proftick(l) \ 157 do { (l)->l_pflag |= LP_OWEUPC; aston(); } while (/* CONSTCOND */0) 158 159 /* 160 * Notify the current process (p) that it has a signal pending, 161 * process as soon as possible. 162 */ 163 #define cpu_signotify(l) aston() 164 165 extern int astpending; /* need to trap before returning to user mode */ 166 #define aston() (astpending++) 167 168 #endif /* _KERNEL */ 169 170 /* 171 * CTL_MACHDEP definitions. 172 */ 173 #define CPU_CONSDEV 1 /* dev_t: console terminal device */ 174 #define CPU_MAXID 2 /* number of valid machdep ids */ 175 176 #ifdef _KERNEL 177 /* 178 * Associate MVME models with CPU types. 179 */ 180 #define MVME68K 1 181 182 /* 183 * MVME-147; 68030 CPU 184 */ 185 #if defined(MVME147) && !defined(M68030) 186 #define M68030 187 #endif 188 189 /* 190 * MVME-162/166/167; 68040 CPU 191 */ 192 #if (defined(MVME162) || defined(MVME167)) && !defined(M68040) 193 #define M68040 194 #endif 195 196 /* 197 * MVME-172/177; 68060 CPU 198 */ 199 #if (defined(MVME172) || defined(MVME177)) && !defined(M68060) 200 #define M68060 201 #endif 202 #endif /* _KERNEL */ 203 204 /* 205 * Values for machineid; these match the Bug's values. 206 */ 207 #define MVME_147 0x147 208 #define MVME_162 0x162 209 #define MVME_166 0x166 210 #define MVME_167 0x167 211 #define MVME_172 0x172 212 #define MVME_177 0x177 213 214 #ifdef _KERNEL 215 extern int machineid; 216 extern int cpuspeed; 217 extern char *intiobase, *intiolimit; 218 extern u_int intiobase_phys, intiotop_phys; 219 extern u_long ether_data_buff_size; 220 extern u_char mvme_ea[6]; 221 222 void doboot(int) 223 __attribute__((__noreturn__)); 224 int nmihand(void *); 225 void mvme68k_abort(const char *); 226 void *iomap(u_long, size_t); 227 void iounmap(void *, size_t); 228 void loadustp(paddr_t); 229 230 /* physical memory addresses where mvme147's onboard devices live */ 231 #define INTIOBASE147 (0xfffe0000u) 232 #define INTIOTOP147 (0xfffe5000u) 233 234 /* ditto for mvme1[67][27] */ 235 #define INTIOBASE1xx (0xfff40000u) 236 #define INTIOTOP1xx (0xfffd0000u) 237 238 #endif /* _KERNEL */ 239 240 #endif /* _MACHINE_CPU_H_ */ 241