1 /* $NetBSD: cpu.h,v 1.77 2011/01/13 22:02:05 phx Exp $ */ 2 3 /* 4 * Copyright (c) 1982, 1990 The Regents of the University of California. 5 * 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 7.7 (Berkeley) 6/27/91 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 7.7 (Berkeley) 6/27/91 77 */ 78 #ifndef _MACHINE_CPU_H_ 79 #define _MACHINE_CPU_H_ 80 81 #if defined(_KERNEL_OPT) 82 #include "opt_lockdebug.h" 83 #endif 84 85 /* 86 * Get common m68k CPU definitions. 87 */ 88 #include <m68k/cpu.h> 89 90 #if defined(_KERNEL) 91 /* 92 * Exported definitions unique to amiga/68k cpu support. 93 */ 94 #define M68K_MMU_MOTOROLA 95 96 extern volatile unsigned int interrupt_depth; 97 /* 98 * Arguments to hardclock and gatherstats encapsulate the previous 99 * machine state in an opaque clockframe. One the hp300, we use 100 * what the hardware pushes on an interrupt (frame format 0). 101 */ 102 struct clockframe { 103 u_short sr; /* sr at time of interrupt */ 104 u_long pc; /* pc at time of interrupt */ 105 u_short vo; /* vector offset (4-word frame) */ 106 }; 107 108 #define CLKF_USERMODE(framep) (((framep)->sr & PSL_S) == 0) 109 #define CLKF_PC(framep) ((framep)->pc) 110 #define CLKF_INTR(framep) (interrupt_depth > 1) 111 112 113 /* 114 * Preempt the current process if in interrupt from user mode, 115 * or after the current trap/syscall if in system mode. 116 */ 117 #define cpu_need_resched(ci,flags) {ci->ci_want_resched = 1; setsoftast();} 118 119 /* 120 * Give a profiling tick to the current process from the softclock 121 * interrupt. On hp300, request an ast to send us through trap(), 122 * marking the proc as needing a profiling tick. 123 */ 124 #define profile_tick(l, framep) ((l)->l_pflag |= LP_OWEUPC, setsoftast()) 125 #define cpu_need_proftick(l) ((l)->l_pflag |= LP_OWEUPC, setsoftast()) 126 127 /* 128 * Notify the current process (p) that it has a signal pending, 129 * process as soon as possible. 130 */ 131 #define cpu_signotify(l) setsoftast() 132 133 extern int astpending; /* need trap before returning to user mode */ 134 #define setsoftast() (astpending = 1) 135 136 /* 137 * The rest of this should probably be moved to ../amiga/amigacpu.h, 138 * although some of it could probably be put into generic 68k headers. 139 */ 140 141 /* values for machineid (happen to be AFF_* settings of AttnFlags) */ 142 #define AMIGA_68020 (1L<<1) 143 #define AMIGA_68030 (1L<<2) 144 #define AMIGA_68040 (1L<<3) 145 #define AMIGA_68881 (1L<<4) 146 #define AMIGA_68882 (1L<<5) 147 #define AMIGA_FPU40 (1L<<6) 148 #define AMIGA_68060 (1L<<7) 149 150 extern int machineid; 151 152 #endif /* _KERNEL */ 153 154 /* 155 * CTL_MACHDEP definitions. 156 */ 157 #define CPU_CONSDEV 1 /* dev_t: console terminal device */ 158 #define CPU_MAXID 2 /* number of valid machdep ids */ 159 160 #ifdef _KERNEL 161 /* 162 * Prototypes from amiga_init.c 163 */ 164 void *alloc_z2mem(long); 165 166 /* 167 * Prototypes from autoconf.c 168 */ 169 int is_a600(void); 170 int is_a1200(void); 171 int is_a3000(void); 172 int is_a4000(void); 173 #ifdef DRACO 174 #define is_draco() ((machineid >> 24) == 0x7d ? (machineid >> 16) & 0xff : 0) 175 #endif 176 177 #ifdef DRACO 178 /* 179 * Prototypes from kbd.c 180 */ 181 void drkbdintr(void); 182 183 /* 184 * Prototypes from drsc.c 185 */ 186 void drsc_handler(void); 187 #endif 188 189 /* 190 * Prototypes from locore.s 191 */ 192 struct fpframe; 193 194 void clearseg(vm_offset_t); 195 void doboot(void) __attribute__((__noreturn__)); 196 void loadustp(int); 197 #ifdef FPCOPROC 198 void m68881_save(struct fpframe *); 199 void m68881_restore(struct fpframe *); 200 #endif 201 void physcopyseg(vm_offset_t, vm_offset_t); 202 u_int probeva(u_int, u_int); 203 204 /* 205 * Prototypes from machdep.c 206 */ 207 int badaddr(void *); 208 int badbaddr(void *); 209 void bootsync(void); 210 211 /* 212 * Prototypes from pmap.c: 213 */ 214 void pmap_bootstrap(vm_offset_t, vm_offset_t); 215 216 #endif /* _KERNEL */ 217 218 /* 219 * Reorder protection when accessing device registers. 220 */ 221 #define amiga_membarrier() 222 223 /* 224 * Finish all bus operations and flush pipelines. 225 */ 226 #define amiga_cpu_sync() __asm volatile ("nop") 227 228 #endif /* !_MACHINE_CPU_H_ */ 229