1 /* $NetBSD: cpu.h,v 1.54 2002/04/25 09:20:33 aymeric Exp $ */ 2 3 /* 4 * Copyright (c) 1988 University of Utah. 5 * Copyright (c) 1982, 1990 The Regents of the University of California. 6 * All rights reserved. 7 * 8 * This code is derived from software contributed to Berkeley by 9 * the Systems Programming Group of the University of Utah Computer 10 * Science Department. 11 * 12 * Redistribution and use in source and binary forms, with or without 13 * modification, are permitted provided that the following conditions 14 * are met: 15 * 1. Redistributions of source code must retain the above copyright 16 * notice, this list of conditions and the following disclaimer. 17 * 2. Redistributions in binary form must reproduce the above copyright 18 * notice, this list of conditions and the following disclaimer in the 19 * documentation and/or other materials provided with the distribution. 20 * 3. All advertising materials mentioning features or use of this software 21 * must display the following acknowledgement: 22 * This product includes software developed by the University of 23 * California, Berkeley and its contributors. 24 * 4. Neither the name of the University nor the names of its contributors 25 * may be used to endorse or promote products derived from this software 26 * without specific prior written permission. 27 * 28 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 29 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 30 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 31 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 32 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 33 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 34 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 35 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 36 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 37 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 38 * SUCH DAMAGE. 39 * 40 * from: Utah $Hdr: cpu.h 1.16 91/03/25$ 41 * 42 * @(#)cpu.h 7.7 (Berkeley) 6/27/91 43 */ 44 #ifndef _MACHINE_CPU_H_ 45 #define _MACHINE_CPU_H_ 46 47 /* 48 * Exported definitions unique to amiga/68k cpu support. 49 */ 50 51 #if defined(_KERNEL_OPT) 52 #include "opt_lockdebug.h" 53 #endif 54 55 /* 56 * Get common m68k CPU definitions. 57 */ 58 #include <m68k/cpu.h> 59 #define M68K_MMU_MOTOROLA 60 61 #include <sys/sched.h> 62 struct cpu_info { 63 struct schedstate_percpu ci_schedstate; /* scheduler state */ 64 #if defined(DIAGNOSTIC) || defined(LOCKDEBUG) 65 u_long ci_spin_locks; /* # of spin locks held */ 66 u_long ci_simple_locks; /* # of simple locks held */ 67 #endif 68 }; 69 70 #ifdef _KERNEL 71 extern struct cpu_info cpu_info_store; 72 73 #define curcpu() (&cpu_info_store) 74 75 /* 76 * definitions of cpu-dependent requirements 77 * referenced in generic code 78 */ 79 #define cpu_swapin(p) /* nothing */ 80 #define cpu_wait(p) /* nothing */ 81 #define cpu_swapout(p) /* nothing */ 82 #define cpu_number() 0 83 84 extern volatile unsigned int interrupt_depth; 85 /* 86 * Arguments to hardclock and gatherstats encapsulate the previous 87 * machine state in an opaque clockframe. One the hp300, we use 88 * what the hardware pushes on an interrupt (frame format 0). 89 */ 90 struct clockframe { 91 u_short sr; /* sr at time of interrupt */ 92 u_long pc; /* pc at time of interrupt */ 93 u_short vo; /* vector offset (4-word frame) */ 94 }; 95 96 #define CLKF_USERMODE(framep) (((framep)->sr & PSL_S) == 0) 97 /*#define CLKF_BASEPRI(framep) (((framep)->sr & PSL_IPL) == 0)*/ 98 #define CLKF_BASEPRI(framep) (0) 99 #define CLKF_PC(framep) ((framep)->pc) 100 #define CLKF_INTR(framep) (interrupt_depth > 1) 101 102 103 /* 104 * Preempt the current process if in interrupt from user mode, 105 * or after the current trap/syscall if in system mode. 106 */ 107 extern int want_resched; /* resched() was called */ 108 #define need_resched(ci) {want_resched = 1; setsoftast();} 109 110 /* 111 * Give a profiling tick to the current process from the softclock 112 * interrupt. On hp300, request an ast to send us through trap(), 113 * marking the proc as needing a profiling tick. 114 */ 115 #define profile_tick(p, framep) ((p)->p_flag |= P_OWEUPC, setsoftast()) 116 #define need_proftick(p) ((p)->p_flag |= P_OWEUPC, setsoftast()) 117 118 /* 119 * Notify the current process (p) that it has a signal pending, 120 * process as soon as possible. 121 */ 122 #define signotify(p) setsoftast() 123 124 extern int astpending; /* need trap before returning to user mode */ 125 #define setsoftast() (astpending = 1) 126 127 #endif /* _KERNEL */ 128 129 /* include support for software interrupts */ 130 #include <machine/mtpr.h> 131 132 /* 133 * The rest of this should probably be moved to ../amiga/amigacpu.h, 134 * although some of it could probably be put into generic 68k headers. 135 */ 136 137 /* values for machineid (happen to be AFF_* settings of AttnFlags) */ 138 #define AMIGA_68020 (1L<<1) 139 #define AMIGA_68030 (1L<<2) 140 #define AMIGA_68040 (1L<<3) 141 #define AMIGA_68881 (1L<<4) 142 #define AMIGA_68882 (1L<<5) 143 #define AMIGA_FPU40 (1L<<6) 144 #define AMIGA_68060 (1L<<7) 145 146 #ifdef _KERNEL 147 extern int machineid; 148 #endif 149 150 /* 151 * CTL_MACHDEP definitions. 152 */ 153 #define CPU_CONSDEV 1 /* dev_t: console terminal device */ 154 #define CPU_MAXID 2 /* number of valid machdep ids */ 155 156 #define CTL_MACHDEP_NAMES { \ 157 { 0, 0 }, \ 158 { "console_device", CTLTYPE_STRUCT }, \ 159 } 160 161 #ifdef _KERNEL 162 /* 163 * Prototypes from amiga_init.c 164 */ 165 void *alloc_z2mem __P((long)); 166 167 /* 168 * Prototypes from autoconf.c 169 */ 170 int is_a1200 __P((void)); 171 int is_a3000 __P((void)); 172 int is_a4000 __P((void)); 173 #ifdef DRACO 174 #define is_draco() ((machineid >> 24) == 0x7d ? (machineid >> 16) & 0xff : 0) 175 #endif 176 177 /* 178 * Prototypes from clock.c 179 */ 180 u_long clkread __P((void)); 181 182 #ifdef DRACO 183 /* 184 * Prototypes from kbd.c 185 */ 186 void drkbdintr __P((void)); 187 188 /* 189 * Prototypes from drsc.c 190 */ 191 void drsc_handler __P((void)); 192 #endif 193 194 /* 195 * Prototypes from locore.s 196 */ 197 struct fpframe; 198 struct user; 199 struct pcb; 200 201 void clearseg __P((vm_offset_t)); 202 void doboot __P((void)) __attribute__((__noreturn__)); 203 void loadustp __P((int)); 204 #ifdef FPCOPROC 205 void m68881_save __P((struct fpframe *)); 206 void m68881_restore __P((struct fpframe *)); 207 #endif 208 void physcopyseg __P((vm_offset_t, vm_offset_t)); 209 u_int probeva __P((u_int, u_int)); 210 void proc_trampoline __P((void)); 211 void savectx __P((struct pcb *)); 212 void switch_exit __P((struct proc *)); 213 214 /* 215 * Prototypes from machdep.c 216 */ 217 int badaddr __P((caddr_t)); 218 int badbaddr __P((caddr_t)); 219 void bootsync __P((void)); 220 void dumpconf __P((void)); 221 222 /* 223 * Prototypes from sys_machdep.c: 224 */ 225 int cachectl1 __P((unsigned long, vaddr_t, size_t, struct proc *)); 226 int dma_cachectl __P((caddr_t, int)); 227 228 /* 229 * Prototypes from vm_machdep.c 230 */ 231 int kvtop __P((caddr_t)); 232 void physaccess __P((caddr_t, caddr_t, int, int)); 233 void physunaccess __P((caddr_t, int)); 234 void setredzone __P((u_int *, caddr_t)); 235 236 /* 237 * Prototypes from pmap.c: 238 */ 239 void pmap_bootstrap __P((vm_offset_t, vm_offset_t)); 240 241 #endif /* _KERNEL */ 242 243 #endif /* !_MACHINE_CPU_H_ */ 244