cpu.h revision 1.48
1 /* $NetBSD: cpu.h,v 1.48 1999/10/14 21:40:05 is 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 /* 52 * Get common m68k CPU definitions. 53 */ 54 #include <m68k/cpu.h> 55 #define M68K_MMU_MOTOROLA 56 57 /* 58 * definitions of cpu-dependent requirements 59 * referenced in generic code 60 */ 61 #define cpu_swapin(p) /* nothing */ 62 #define cpu_wait(p) /* nothing */ 63 #define cpu_swapout(p) /* nothing */ 64 #define cpu_number() 0 65 66 /* 67 * Arguments to hardclock and gatherstats encapsulate the previous 68 * machine state in an opaque clockframe. One the hp300, we use 69 * what the hardware pushes on an interrupt (frame format 0). 70 */ 71 struct clockframe { 72 u_short sr; /* sr at time of interrupt */ 73 u_long pc; /* pc at time of interrupt */ 74 u_short vo; /* vector offset (4-word frame) */ 75 }; 76 77 #define CLKF_USERMODE(framep) (((framep)->sr & PSL_S) == 0) 78 /*#define CLKF_BASEPRI(framep) (((framep)->sr & PSL_IPL) == 0)*/ 79 #define CLKF_BASEPRI(framep) (0) 80 #define CLKF_PC(framep) ((framep)->pc) 81 #if 0 82 /* We would like to do it this way... */ 83 #define CLKF_INTR(framep) (((framep)->sr & PSL_M) == 0) 84 #else 85 /* but until we start using PSL_M, we have to do this instead */ 86 #define CLKF_INTR(framep) (0) /* XXX */ 87 #endif 88 89 90 /* 91 * Preempt the current process if in interrupt from user mode, 92 * or after the current trap/syscall if in system mode. 93 */ 94 extern int want_resched; /* resched() was called */ 95 #define need_resched() {want_resched = 1; setsoftast();} 96 97 /* 98 * Give a profiling tick to the current process from the softclock 99 * interrupt. On hp300, request an ast to send us through trap(), 100 * marking the proc as needing a profiling tick. 101 */ 102 #define profile_tick(p, framep) ((p)->p_flag |= P_OWEUPC, setsoftast()) 103 #define need_proftick(p) ((p)->p_flag |= P_OWEUPC, setsoftast()) 104 105 /* 106 * Notify the current process (p) that it has a signal pending, 107 * process as soon as possible. 108 */ 109 #define signotify(p) setsoftast() 110 111 extern int astpending; /* need trap before returning to user mode */ 112 #define setsoftast() (astpending = 1) 113 114 115 /* include support for software interrupts */ 116 #include <machine/mtpr.h> 117 118 /* 119 * The rest of this should probably be moved to ../amiga/amigacpu.h, 120 * although some of it could probably be put into generic 68k headers. 121 */ 122 123 /* values for machineid (happen to be AFF_* settings of AttnFlags) */ 124 #define AMIGA_68020 (1L<<1) 125 #define AMIGA_68030 (1L<<2) 126 #define AMIGA_68040 (1L<<3) 127 #define AMIGA_68881 (1L<<4) 128 #define AMIGA_68882 (1L<<5) 129 #define AMIGA_FPU40 (1L<<6) 130 #define AMIGA_68060 (1L<<7) 131 132 #ifdef _KERNEL 133 int machineid; 134 #endif 135 136 /* 137 * CTL_MACHDEP definitions. 138 */ 139 #define CPU_CONSDEV 1 /* dev_t: console terminal device */ 140 #define CPU_MAXID 2 /* number of valid machdep ids */ 141 142 #define CTL_MACHDEP_NAMES { \ 143 { 0, 0 }, \ 144 { "console_device", CTLTYPE_STRUCT }, \ 145 } 146 147 #ifdef _KERNEL 148 /* 149 * Prototypes from amiga_init.c 150 */ 151 void *alloc_z2mem __P((long)); 152 153 /* 154 * Prototypes from autoconf.c 155 */ 156 int is_a1200 __P((void)); 157 int is_a3000 __P((void)); 158 int is_a4000 __P((void)); 159 #ifdef DRACO 160 #define is_draco() ((machineid >> 24) == 0x7d ? (machineid >> 16) & 0xff : 0) 161 #endif 162 163 /* 164 * Prototypes from clock.c 165 */ 166 u_long clkread __P((void)); 167 168 #ifdef DRACO 169 /* 170 * Prototypes from kbd.c 171 */ 172 void drkbdintr __P((void)); 173 174 /* 175 * Prototypes from drsc.c 176 */ 177 void drsc_handler __P((void)); 178 #endif 179 180 /* 181 * Prototypes from locore.s 182 */ 183 struct fpframe; 184 struct user; 185 struct pcb; 186 187 void clearseg __P((vm_offset_t)); 188 void doboot __P((void)) __attribute__((__noreturn__)); 189 void loadustp __P((int)); 190 #ifdef FPCOPROC 191 void m68881_save __P((struct fpframe *)); 192 void m68881_restore __P((struct fpframe *)); 193 #endif 194 void physcopyseg __P((vm_offset_t, vm_offset_t)); 195 u_int probeva __P((u_int, u_int)); 196 void proc_trampoline __P((void)); 197 void savectx __P((struct pcb *)); 198 void switch_exit __P((struct proc *)); 199 200 /* 201 * Prototypes from machdep.c 202 */ 203 int badaddr __P((caddr_t)); 204 int badbaddr __P((caddr_t)); 205 void bootsync __P((void)); 206 void dumpconf __P((void)); 207 208 /* 209 * Prototypes from sys_machdep.c: 210 */ 211 int cachectl1 __P((unsigned long, vaddr_t, size_t, struct proc *)); 212 int dma_cachectl __P((caddr_t, int)); 213 214 /* 215 * Prototypes from vm_machdep.c 216 */ 217 int kvtop __P((caddr_t)); 218 void physaccess __P((caddr_t, caddr_t, int, int)); 219 void physunaccess __P((caddr_t, int)); 220 void setredzone __P((u_int *, caddr_t)); 221 222 /* 223 * Prototypes from pmap.c: 224 */ 225 void pmap_bootstrap __P((vm_offset_t, vm_offset_t)); 226 227 /* 228 * Prototypes from trap.c: 229 */ 230 void child_return __P((void *)); 231 232 #endif /* _KERNEL */ 233 234 #endif /* !_MACHINE_CPU_H_ */ 235
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