cpu.h revision 1.36
1 3/* $NetBSD: cpu.h,v 1.36 2007/05/20 04:29:48 mhitch 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 int ci_mtx_count; 102 int ci_mtx_oldspl; 103 }; 104 105 extern struct cpu_info cpu_info_store; 106 107 #define curcpu() (&cpu_info_store) 108 109 /* 110 * definitions of cpu-dependent requirements 111 * referenced in generic code 112 */ 113 #define cpu_swapin(p) /* nothing */ 114 #define cpu_swapout(p) /* nothing */ 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 extern int want_resched; /* resched() was called */ 149 #define cpu_need_resched(ci) { want_resched++; aston(); } 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) { (l)->l_pflag |= LP_OWEUPC; aston(); } 157 158 /* 159 * Notify the current process (p) that it has a signal pending, 160 * process as soon as possible. 161 */ 162 #define cpu_signotify(l) aston() 163 164 extern int astpending; /* need to trap before returning to user mode */ 165 #define aston() (astpending++) 166 167 #endif /* _KERNEL */ 168 169 /* 170 * CTL_MACHDEP definitions. 171 */ 172 #define CPU_CONSDEV 1 /* dev_t: console terminal device */ 173 #define CPU_MAXID 2 /* number of valid machdep ids */ 174 175 #define CTL_MACHDEP_NAMES { \ 176 { 0, 0 }, \ 177 { "console_device", CTLTYPE_STRUCT }, \ 178 } 179 180 #ifdef _KERNEL 181 /* 182 * Associate MVME models with CPU types. 183 */ 184 #define MVME68K 1 185 186 /* 187 * MVME-147; 68030 CPU 188 */ 189 #if defined(MVME147) && !defined(M68030) 190 #define M68030 191 #endif 192 193 /* 194 * MVME-162/166/167; 68040 CPU 195 */ 196 #if (defined(MVME162) || defined(MVME167)) && !defined(M68040) 197 #define M68040 198 #endif 199 200 /* 201 * MVME-172/177; 68060 CPU 202 */ 203 #if (defined(MVME172) || defined(MVME177)) && !defined(M68060) 204 #define M68060 205 #endif 206 #endif /* _KERNEL */ 207 208 /* 209 * Values for machineid; these match the Bug's values. 210 */ 211 #define MVME_147 0x147 212 #define MVME_162 0x162 213 #define MVME_166 0x166 214 #define MVME_167 0x167 215 #define MVME_172 0x172 216 #define MVME_177 0x177 217 218 #ifdef _KERNEL 219 extern int machineid; 220 extern int cpuspeed; 221 extern char *intiobase, *intiolimit; 222 extern u_int intiobase_phys, intiotop_phys; 223 extern u_long ether_data_buff_size; 224 extern u_char mvme_ea[6]; 225 226 struct frame; 227 struct pcb; 228 void doboot __P((int)) 229 __attribute__((__noreturn__)); 230 int nmihand __P((void *)); 231 void mvme68k_abort __P((const char *)); 232 void physaccess __P((void *, void *, int, int)); 233 void physunaccess __P((void *, int)); 234 void *iomap __P((u_long, size_t)); 235 void iounmap __P((void *, size_t)); 236 int kvtop __P((void *)); 237 void savectx __P((struct pcb *)); 238 void switch_exit __P((struct lwp *)); 239 void switch_lwp_exit __P((struct lwp *)); 240 void lwp_trampoline __P((void)); 241 void loadustp __P((paddr_t)); 242 243 /* Prototypes from sys_machdep.c: */ 244 int cachectl1 __P((unsigned long, vaddr_t, size_t, struct proc *)); 245 int dma_cachectl __P((void *, int)); 246 247 /* physical memory addresses where mvme147's onboard devices live */ 248 #define INTIOBASE147 (0xfffe0000u) 249 #define INTIOTOP147 (0xfffe5000u) 250 251 /* ditto for mvme1[67][27] */ 252 #define INTIOBASE1xx (0xfff40000u) 253 #define INTIOTOP1xx (0xfffd0000u) 254 255 #endif /* _KERNEL */ 256 257 #endif /* _MACHINE_CPU_H_ */ 258
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