1 /* $NetBSD: cpu.h,v 1.24 2007/10/17 19:55:03 garbled 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 #if defined(_KERNEL_OPT) 85 #include "opt_lockdebug.h" 86 #endif 87 88 /* 89 * Get common m68k CPU definitions. 90 */ 91 #include <m68k/cpu.h> 92 #define M68K_MMU_MOTOROLA 93 94 #include <sys/cpu_data.h> 95 struct cpu_info { 96 struct cpu_data ci_data; /* MI per-cpu data */ 97 cpuid_t ci_cpuid; 98 int ci_mtx_count; 99 int ci_mtx_oldspl; 100 int ci_want_resched; 101 }; 102 103 extern struct cpu_info cpu_info_store; 104 105 #define curcpu() (&cpu_info_store) 106 107 /* 108 * definitions of cpu-dependent requirements 109 * referenced in generic code 110 */ 111 #define cpu_swapin(p) /* nothing */ 112 #define cpu_swapout(p) /* nothing */ 113 #define cpu_number() 0 114 115 void cpu_proc_fork(struct proc *, struct proc *); 116 117 /* 118 * Arguments to hardclock and gatherstats encapsulate the previous 119 * machine state in an opaque clockframe. One the luna68k, we use 120 * what the hardware pushes on an interrupt (frame format 0). 121 */ 122 struct clockframe { 123 u_short sr; /* sr at time of interrupt */ 124 u_long pc; /* pc at time of interrupt */ 125 u_short vo; /* vector offset (4-word frame) */ 126 }; 127 128 #define CLKF_USERMODE(framep) (((framep)->sr & PSL_S) == 0) 129 #define CLKF_PC(framep) ((framep)->pc) 130 #if 0 131 /* We would like to do it this way... */ 132 #define CLKF_INTR(framep) (((framep)->sr & PSL_M) == 0) 133 #else 134 /* but until we start using PSL_M, we have to do this instead */ 135 #define CLKF_INTR(framep) (0) /* XXX */ 136 #endif 137 138 139 /* 140 * Preempt the current process if in interrupt from user mode, 141 * or after the current trap/syscall if in system mode. 142 */ 143 #define cpu_need_resched(ci,flags) { ci->ci_want_resched = 1; aston(); } 144 145 /* 146 * Give a profiling tick to the current process when the user profiling 147 * buffer pages are invalid. On the hp300, request an ast to send us 148 * through trap, marking the proc as needing a profiling tick. 149 */ 150 #define cpu_need_proftick(l) { (l)->l_pflag |= LP_OWEUPC; aston(); } 151 152 /* 153 * Notify the current process (p) that it has a signal pending, 154 * process as soon as possible. 155 */ 156 #define cpu_signotify(l) aston() 157 158 #define aston() (astpending = 1) 159 160 extern int astpending; /* need to trap before returning to user mode */ 161 162 #endif /* _KERNEL */ 163 164 /* 165 * CTL_MACHDEP definitions. 166 */ 167 #define CPU_CONSDEV 1 /* dev_t: console terminal device */ 168 #define CPU_MAXID 2 /* number of valid machdep ids */ 169 170 #define CTL_MACHDEP_NAMES { \ 171 { 0, 0 }, \ 172 { "console_device", CTLTYPE_STRUCT }, \ 173 } 174 175 /* 176 * Values for machtype 177 */ 178 #define LUNA_I 1 179 #define LUNA_II 2 180 181 #ifdef _KERNEL 182 extern int machtype; 183 extern char *intiobase, *intiolimit; /* XXX */ 184 extern u_int intiobase_phys, intiotop_phys; /* XXX */ 185 186 /* machdep.c functions */ 187 void dumpconf __P((void)); 188 void dumpsys __P((void)); 189 190 /* locore.s functions */ 191 struct fpframe; 192 int suline __P((void *, void *)); 193 void loadustp __P((int)); 194 void m68881_save __P((struct fpframe *)); 195 void m68881_restore __P((struct fpframe *)); 196 197 /* machdep.c functions */ 198 int badaddr __P((void *, int)); 199 200 #endif 201 202 #endif /* _MACHINE_CPU_H */ 203