1 /* $NetBSD: cpu.h,v 1.12 2005/12/24 20:07:15 perry 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 }; 98 99 extern struct cpu_info cpu_info_store; 100 101 #define curcpu() (&cpu_info_store) 102 103 /* 104 * definitions of cpu-dependent requirements 105 * referenced in generic code 106 */ 107 #define cpu_swapin(p) /* nothing */ 108 #define cpu_swapout(p) /* nothing */ 109 #define cpu_number() 0 110 111 void cpu_proc_fork(struct proc *, struct proc *); 112 113 /* 114 * Arguments to hardclock and gatherstats encapsulate the previous 115 * machine state in an opaque clockframe. One the luna68k, we use 116 * what the hardware pushes on an interrupt (frame format 0). 117 */ 118 struct clockframe { 119 u_short sr; /* sr at time of interrupt */ 120 u_long pc; /* pc at time of interrupt */ 121 u_short vo; /* vector offset (4-word frame) */ 122 }; 123 124 #define CLKF_USERMODE(framep) (((framep)->sr & PSL_S) == 0) 125 #define CLKF_BASEPRI(framep) (((framep)->sr & PSL_IPL) == 0) 126 #define CLKF_PC(framep) ((framep)->pc) 127 #if 0 128 /* We would like to do it this way... */ 129 #define CLKF_INTR(framep) (((framep)->sr & PSL_M) == 0) 130 #else 131 /* but until we start using PSL_M, we have to do this instead */ 132 #define CLKF_INTR(framep) (0) /* XXX */ 133 #endif 134 135 136 /* 137 * Preempt the current process if in interrupt from user mode, 138 * or after the current trap/syscall if in system mode. 139 */ 140 #define need_resched(ci) { want_resched = 1; aston(); } 141 142 /* 143 * Give a profiling tick to the current process when the user profiling 144 * buffer pages are invalid. On the hp300, request an ast to send us 145 * through trap, marking the proc as needing a profiling tick. 146 */ 147 #define need_proftick(p) { (p)->p_flag |= P_OWEUPC; aston(); } 148 149 /* 150 * Notify the current process (p) that it has a signal pending, 151 * process as soon as possible. 152 */ 153 #define signotify(p) aston() 154 155 #define aston() (astpending = 1) 156 157 extern int astpending; /* need to trap before returning to user mode */ 158 extern int want_resched; /* resched() was called */ 159 160 /* 161 * simulated software interrupt register 162 */ 163 extern unsigned char ssir; 164 165 #define SIR_NET 0x1 166 #define SIR_CLOCK 0x2 167 168 #define siron(x) \ 169 __asm volatile ("orb %0,%1" : : "di" ((u_char)(x)), "g" (ssir)) 170 #define siroff(x) \ 171 __asm volatile ("andb %0,%1" : : "di" ((u_char)~(x)), "g" (ssir)) 172 173 #define setsoftnet() siron(SIR_NET) 174 #define setsoftclock() siron(SIR_CLOCK) 175 176 #endif /* _KERNEL */ 177 178 /* 179 * CTL_MACHDEP definitions. 180 */ 181 #define CPU_CONSDEV 1 /* dev_t: console terminal device */ 182 #define CPU_MAXID 2 /* number of valid machdep ids */ 183 184 #define CTL_MACHDEP_NAMES { \ 185 { 0, 0 }, \ 186 { "console_device", CTLTYPE_STRUCT }, \ 187 } 188 189 /* 190 * Values for machtype 191 */ 192 #define LUNA_I 1 193 #define LUNA_II 2 194 195 #ifdef _KERNEL 196 extern int machtype; 197 extern char *intiobase, *intiolimit; /* XXX */ 198 extern u_int intiobase_phys, intiotop_phys; /* XXX */ 199 200 /* machdep.c functions */ 201 void dumpconf __P((void)); 202 void dumpsys __P((void)); 203 204 /* locore.s functions */ 205 struct pcb; 206 struct fpframe; 207 int suline __P((caddr_t, caddr_t)); 208 void savectx __P((struct pcb *)); 209 void switch_exit __P((struct lwp *)); 210 void switch_lwp_exit __P((struct lwp *)); 211 void proc_trampoline __P((void)); 212 void loadustp __P((int)); 213 void m68881_save __P((struct fpframe *)); 214 void m68881_restore __P((struct fpframe *)); 215 216 /* machdep.c functions */ 217 int badaddr __P((caddr_t, int)); 218 219 /* sys_machdep.c functions */ 220 int cachectl1 __P((unsigned long, vaddr_t, size_t, struct proc *)); 221 int dma_cachectl __P((caddr_t, int)); 222 223 /* vm_machdep.c functions */ 224 void physaccess __P((caddr_t, caddr_t, int, int)); 225 void physunaccess __P((caddr_t, int)); 226 int kvtop __P((caddr_t)); 227 228 #endif 229 230 #endif /* _MACHINE_CPU_H */ 231