cpu.h revision 1.46
1 /* $NetBSD: cpu.h,v 1.46 1999/02/26 22:37:57 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 65 /* 66 * Arguments to hardclock and gatherstats encapsulate the previous 67 * machine state in an opaque clockframe. One the hp300, we use 68 * what the hardware pushes on an interrupt (frame format 0). 69 */ 70 struct clockframe { 71 u_short sr; /* sr at time of interrupt */ 72 u_long pc; /* pc at time of interrupt */ 73 u_short vo; /* vector offset (4-word frame) */ 74 }; 75 76 #define CLKF_USERMODE(framep) (((framep)->sr & PSL_S) == 0) 77 /*#define CLKF_BASEPRI(framep) (((framep)->sr & PSL_IPL) == 0)*/ 78 #define CLKF_BASEPRI(framep) (0) 79 #define CLKF_PC(framep) ((framep)->pc) 80 #if 0 81 /* We would like to do it this way... */ 82 #define CLKF_INTR(framep) (((framep)->sr & PSL_M) == 0) 83 #else 84 /* but until we start using PSL_M, we have to do this instead */ 85 #define CLKF_INTR(framep) (0) /* XXX */ 86 #endif 87 88 89 /* 90 * Preempt the current process if in interrupt from user mode, 91 * or after the current trap/syscall if in system mode. 92 */ 93 extern int want_resched; /* resched() was called */ 94 #define need_resched() {want_resched = 1; setsoftast();} 95 96 /* 97 * Give a profiling tick to the current process from the softclock 98 * interrupt. On hp300, request an ast to send us through trap(), 99 * marking the proc as needing a profiling tick. 100 */ 101 #define profile_tick(p, framep) ((p)->p_flag |= P_OWEUPC, setsoftast()) 102 #define need_proftick(p) ((p)->p_flag |= P_OWEUPC, setsoftast()) 103 104 /* 105 * Notify the current process (p) that it has a signal pending, 106 * process as soon as possible. 107 */ 108 #define signotify(p) setsoftast() 109 110 extern int astpending; /* need trap before returning to user mode */ 111 #define setsoftast() (astpending = 1) 112 113 114 /* include support for software interrupts */ 115 #include <machine/mtpr.h> 116 117 /* 118 * The rest of this should probably be moved to ../amiga/amigacpu.h, 119 * although some of it could probably be put into generic 68k headers. 120 */ 121 122 /* values for machineid (happen to be AFF_* settings of AttnFlags) */ 123 #define AMIGA_68020 (1L<<1) 124 #define AMIGA_68030 (1L<<2) 125 #define AMIGA_68040 (1L<<3) 126 #define AMIGA_68881 (1L<<4) 127 #define AMIGA_68882 (1L<<5) 128 #define AMIGA_FPU40 (1L<<6) 129 #define AMIGA_68060 (1L<<7) 130 131 #ifdef _KERNEL 132 int machineid; 133 #endif 134 135 /* 136 * CTL_MACHDEP definitions. 137 */ 138 #define CPU_CONSDEV 1 /* dev_t: console terminal device */ 139 #define CPU_MAXID 2 /* number of valid machdep ids */ 140 141 #define CTL_MACHDEP_NAMES { \ 142 { 0, 0 }, \ 143 { "console_device", CTLTYPE_STRUCT }, \ 144 } 145 146 #ifdef _KERNEL 147 /* 148 * Prototypes from amiga_init.c 149 */ 150 void *alloc_z2mem __P((long)); 151 152 /* 153 * Prototypes from autoconf.c 154 */ 155 int is_a1200 __P((void)); 156 int is_a3000 __P((void)); 157 int is_a4000 __P((void)); 158 #ifdef DRACO 159 #define is_draco() ((machineid >> 24) == 0x7d ? (machineid >> 16) & 0xff : 0) 160 #endif 161 162 /* 163 * Prototypes from clock.c 164 */ 165 u_long clkread __P((void)); 166 167 #ifdef DRACO 168 /* 169 * Prototypes from kbd.c 170 */ 171 void drkbdintr __P((void)); 172 173 /* 174 * Prototypes from drsc.c 175 */ 176 void drsc_handler __P((void)); 177 #endif 178 179 /* 180 * Prototypes from locore.s 181 */ 182 struct fpframe; 183 struct user; 184 struct pcb; 185 186 void clearseg __P((vm_offset_t)); 187 void doboot __P((void)) __attribute__((__noreturn__)); 188 void loadustp __P((int)); 189 #ifdef FPCOPROC 190 void m68881_save __P((struct fpframe *)); 191 void m68881_restore __P((struct fpframe *)); 192 #endif 193 void physcopyseg __P((vm_offset_t, vm_offset_t)); 194 u_int probeva __P((u_int, u_int)); 195 void proc_trampoline __P((void)); 196 void savectx __P((struct pcb *)); 197 void switch_exit __P((struct proc *)); 198 void DCIAS __P((vm_offset_t)); 199 void DCIA __P((void)); 200 void DCIS __P((void)); 201 void DCIU __P((void)); 202 void ICIA __P((void)); 203 void ICPA __P((void)); 204 void PCIA __P((void)); 205 void TBIA __P((void)); 206 void TBIS __P((vm_offset_t)); 207 void TBIAS __P((void)); 208 void TBIAU __P((void)); 209 #if defined(M68040) || defined(M68060) 210 void DCFA __P((void)); 211 void DCFP __P((vm_offset_t)); 212 void DCFL __P((vm_offset_t)); 213 void DCPL __P((vm_offset_t)); 214 void DCPP __P((vm_offset_t)); 215 void ICPL __P((vm_offset_t)); 216 void ICPP __P((vm_offset_t)); 217 #endif 218 219 /* 220 * Prototypes from machdep.c 221 */ 222 int badaddr __P((caddr_t)); 223 int badbaddr __P((caddr_t)); 224 void bootsync __P((void)); 225 void dumpconf __P((void)); 226 227 /* 228 * Prototypes from sys_machdep.c: 229 */ 230 int cachectl1 __P((unsigned long, vaddr_t, size_t, struct proc *)); 231 int dma_cachectl __P((caddr_t, int)); 232 233 /* 234 * Prototypes from vm_machdep.c 235 */ 236 int kvtop __P((caddr_t)); 237 void physaccess __P((caddr_t, caddr_t, int, int)); 238 void physunaccess __P((caddr_t, int)); 239 void setredzone __P((u_int *, caddr_t)); 240 241 /* 242 * Prototypes from pmap.c: 243 */ 244 void pmap_bootstrap __P((vm_offset_t, vm_offset_t)); 245 246 /* 247 * Prototypes from trap.c: 248 */ 249 void child_return __P((void *)); 250 251 #endif /* _KERNEL */ 252 253 #endif /* !_MACHINE_CPU_H_ */ 254
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