cpu.h revision 1.38
1 /* $NetBSD: cpu.h,v 1.38 1997/04/09 19:34:53 thorpej 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 #define need_resched() {want_resched = 1; setsoftast();} 94 95 /* 96 * Give a profiling tick to the current process from the softclock 97 * interrupt. On hp300, request an ast to send us through trap(), 98 * marking the proc as needing a profiling tick. 99 */ 100 #define profile_tick(p, framep) ((p)->p_flag |= P_OWEUPC, setsoftast()) 101 #define need_proftick(p) ((p)->p_flag |= P_OWEUPC, setsoftast()) 102 103 /* 104 * Notify the current process (p) that it has a signal pending, 105 * process as soon as possible. 106 */ 107 #define signotify(p) setsoftast() 108 109 #define setsoftast() (astpending = 1) 110 111 int astpending; /* need trap before returning to user mode */ 112 int want_resched; /* resched() was called */ 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 void configure __P((void)); 156 int is_a1200 __P((void)); 157 int is_a3000 __P((void)); 158 int is_a4000 __P((void)); 159 #ifdef DRACO 160 int is_draco __P((void)); 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 u_long getdfc __P((void)); 190 u_long getsfc __P((void)); 191 void loadustp __P((int)); 192 #ifdef FPCOPROC 193 void m68881_save __P((struct fpframe *)); 194 void m68881_restore __P((struct fpframe *)); 195 #endif 196 void physcopyseg __P((vm_offset_t, vm_offset_t)); 197 u_int probeva __P((u_int, u_int)); 198 void proc_trampoline __P((void)); 199 void savectx __P((struct pcb *)); 200 void switch_exit __P((struct proc *)); 201 void DCIAS __P((vm_offset_t)); 202 void DCIA __P((void)); 203 void DCIS __P((void)); 204 void DCIU __P((void)); 205 void ICIA __P((void)); 206 void ICPA __P((void)); 207 void PCIA __P((void)); 208 void TBIA __P((void)); 209 void TBIS __P((vm_offset_t)); 210 void TBIAS __P((void)); 211 void TBIAU __P((void)); 212 #if defined(M68040) || defined(M68060) 213 void DCFA __P((void)); 214 void DCFP __P((vm_offset_t)); 215 void DCFL __P((vm_offset_t)); 216 void DCPL __P((vm_offset_t)); 217 void DCPP __P((vm_offset_t)); 218 void ICPL __P((vm_offset_t)); 219 void ICPP __P((vm_offset_t)); 220 #endif 221 222 /* 223 * Prototypes from machdep.c 224 */ 225 int badaddr __P((caddr_t)); 226 int badbaddr __P((caddr_t)); 227 void bootsync __P((void)); 228 void dumpconf __P((void)); 229 230 /* 231 * Prototypes from sys_machdep.c: 232 */ 233 int cachectl __P((int, caddr_t, int)); 234 int dma_cachectl __P((caddr_t, int)); 235 236 /* 237 * Prototypes from vm_machdep.c 238 */ 239 int kvtop __P((caddr_t)); 240 void physaccess __P((caddr_t, caddr_t, int, int)); 241 void physunaccess __P((caddr_t, int)); 242 void setredzone __P((u_int *, caddr_t)); 243 244 /* 245 * Prototypes from pmap.c: 246 */ 247 void pmap_bootstrap __P((vm_offset_t, vm_offset_t)); 248 249 #endif /* _KERNEL */ 250 251 #endif /* !_MACHINE_CPU_H_ */ 252
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