cpu.h revision 1.27.2.3
1 /* $NetBSD: cpu.h,v 1.27.2.3 2004/09/21 13:19:15 skrll 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_swapout(p) /* nothing */ 116 #define cpu_number() 0 117 118 void cpu_proc_fork(struct proc *, struct proc *); 119 120 /* 121 * Arguments to hardclock and gatherstats encapsulate the previous 122 * machine state in an opaque clockframe. One the mvme68k, we use 123 * what the hardware pushes on an interrupt (frame format 0). 124 */ 125 struct clockframe { 126 u_short sr; /* sr at time of interrupt */ 127 u_long pc; /* pc at time of interrupt */ 128 u_short fmt:4, 129 vec:12; /* vector offset (4-word frame) */ 130 } __attribute__((packed)); 131 132 #define CLKF_USERMODE(framep) (((framep)->sr & PSL_S) == 0) 133 #define CLKF_BASEPRI(framep) (((framep)->sr & PSL_IPL) == 0) 134 #define CLKF_PC(framep) ((framep)->pc) 135 136 /* 137 * The clock interrupt handler can determine if it's a nested 138 * interrupt by checking for interrupt_depth > 1. 139 * (Remember, the clock interrupt handler itself will cause the 140 * depth counter to be incremented). 141 */ 142 extern volatile unsigned int interrupt_depth; 143 #define CLKF_INTR(framep) (interrupt_depth > 1) 144 145 146 /* 147 * Preempt the current process if in interrupt from user mode, 148 * or after the current trap/syscall if in system mode. 149 */ 150 extern int want_resched; /* resched() was called */ 151 #define need_resched(ci) { want_resched++; aston(); } 152 153 /* 154 * Give a profiling tick to the current process when the user profiling 155 * buffer pages are invalid. On the hp300, request an ast to send us 156 * through trap, marking the proc as needing a profiling tick. 157 */ 158 #define need_proftick(p) { (p)->p_flag |= P_OWEUPC; aston(); } 159 160 /* 161 * Notify the current process (p) that it has a signal pending, 162 * process as soon as possible. 163 */ 164 #define signotify(p) aston() 165 166 extern int astpending; /* need to trap before returning to user mode */ 167 #define aston() (astpending++) 168 169 #endif /* _KERNEL */ 170 171 /* 172 * CTL_MACHDEP definitions. 173 */ 174 #define CPU_CONSDEV 1 /* dev_t: console terminal device */ 175 #define CPU_MAXID 2 /* number of valid machdep ids */ 176 177 #define CTL_MACHDEP_NAMES { \ 178 { 0, 0 }, \ 179 { "console_device", CTLTYPE_STRUCT }, \ 180 } 181 182 #ifdef _KERNEL 183 /* 184 * Associate MVME models with CPU types. 185 */ 186 #define MVME68K 1 187 188 /* 189 * MVME-147; 68030 CPU 190 */ 191 #if defined(MVME147) && !defined(M68030) 192 #define M68030 193 #endif 194 195 /* 196 * MVME-162/166/167; 68040 CPU 197 */ 198 #if (defined(MVME162) || defined(MVME167)) && !defined(M68040) 199 #define M68040 200 #endif 201 202 /* 203 * MVME-172/177; 68060 CPU 204 */ 205 #if (defined(MVME172) || defined(MVME177)) && !defined(M68060) 206 #define M68060 207 #endif 208 #endif /* _KERNEL */ 209 210 /* 211 * Values for machineid; these match the Bug's values. 212 */ 213 #define MVME_147 0x147 214 #define MVME_162 0x162 215 #define MVME_166 0x166 216 #define MVME_167 0x167 217 #define MVME_172 0x172 218 #define MVME_177 0x177 219 220 #ifdef _KERNEL 221 extern int machineid; 222 extern int cpuspeed; 223 extern char *intiobase, *intiolimit; 224 extern u_int intiobase_phys, intiotop_phys; 225 extern u_long ether_data_buff_size; 226 extern u_char mvme_ea[6]; 227 228 struct frame; 229 struct pcb; 230 void doboot __P((int)) 231 __attribute__((__noreturn__)); 232 int nmihand __P((void *)); 233 void mvme68k_abort __P((const char *)); 234 void physaccess __P((caddr_t, caddr_t, int, int)); 235 void physunaccess __P((caddr_t, int)); 236 void *iomap __P((u_long, size_t)); 237 void iounmap __P((void *, size_t)); 238 int kvtop __P((caddr_t)); 239 void savectx __P((struct pcb *)); 240 void switch_exit __P((struct lwp *)); 241 void switch_lwp_exit __P((struct lwp *)); 242 void proc_trampoline __P((void)); 243 void loadustp __P((paddr_t)); 244 245 /* Prototypes from sys_machdep.c: */ 246 int cachectl1 __P((unsigned long, vaddr_t, size_t, struct proc *)); 247 int dma_cachectl __P((caddr_t, int)); 248 249 /* physical memory addresses where mvme147's onboard devices live */ 250 #define INTIOBASE147 (0xfffe0000u) 251 #define INTIOTOP147 (0xfffe5000u) 252 253 /* ditto for mvme1[67][27] */ 254 #define INTIOBASE1xx (0xfff40000u) 255 #define INTIOTOP1xx (0xfffd0000u) 256 257 #endif /* _KERNEL */ 258 259 #endif /* _MACHINE_CPU_H_ */ 260
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