1 /* $NetBSD: cpu.h,v 1.72 2009/05/19 18:39:27 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) 82 83 /* 84 * Exported definitions unique to amiga/68k cpu support. 85 */ 86 87 #if defined(_KERNEL_OPT) 88 #include "opt_lockdebug.h" 89 #endif 90 91 /* 92 * Get common m68k CPU definitions. 93 */ 94 #include <m68k/cpu.h> 95 #define M68K_MMU_MOTOROLA 96 97 #include <sys/cpu_data.h> 98 struct cpu_info { 99 struct cpu_data ci_data; /* MI per-cpu data */ 100 cpuid_t ci_cpuid; 101 int ci_mtx_count; 102 int ci_mtx_oldspl; 103 int ci_want_resched; 104 }; 105 106 extern struct cpu_info cpu_info_store; 107 108 #define curcpu() (&cpu_info_store) 109 110 /* 111 * definitions of cpu-dependent requirements 112 * referenced in generic code 113 */ 114 #define cpu_swapin(p) /* nothing */ 115 #define cpu_swapout(p) /* nothing */ 116 #define cpu_number() 0 117 118 void cpu_proc_fork(struct proc *, struct proc *); 119 120 121 extern volatile unsigned int interrupt_depth; 122 /* 123 * Arguments to hardclock and gatherstats encapsulate the previous 124 * machine state in an opaque clockframe. One the hp300, we use 125 * what the hardware pushes on an interrupt (frame format 0). 126 */ 127 struct clockframe { 128 u_short sr; /* sr at time of interrupt */ 129 u_long pc; /* pc at time of interrupt */ 130 u_short vo; /* vector offset (4-word frame) */ 131 }; 132 133 #define CLKF_USERMODE(framep) (((framep)->sr & PSL_S) == 0) 134 #define CLKF_PC(framep) ((framep)->pc) 135 #define CLKF_INTR(framep) (interrupt_depth > 1) 136 137 138 /* 139 * Preempt the current process if in interrupt from user mode, 140 * or after the current trap/syscall if in system mode. 141 */ 142 #define cpu_need_resched(ci,flags) {ci->ci_want_resched = 1; setsoftast();} 143 144 /* 145 * Give a profiling tick to the current process from the softclock 146 * interrupt. On hp300, request an ast to send us through trap(), 147 * marking the proc as needing a profiling tick. 148 */ 149 #define profile_tick(l, framep) ((l)->l_pflag |= LP_OWEUPC, setsoftast()) 150 #define cpu_need_proftick(l) ((l)->l_pflag |= LP_OWEUPC, setsoftast()) 151 152 /* 153 * Notify the current process (p) that it has a signal pending, 154 * process as soon as possible. 155 */ 156 #define cpu_signotify(l) setsoftast() 157 158 extern int astpending; /* need trap before returning to user mode */ 159 #define setsoftast() (astpending = 1) 160 161 /* 162 * The rest of this should probably be moved to ../amiga/amigacpu.h, 163 * although some of it could probably be put into generic 68k headers. 164 */ 165 166 /* values for machineid (happen to be AFF_* settings of AttnFlags) */ 167 #define AMIGA_68020 (1L<<1) 168 #define AMIGA_68030 (1L<<2) 169 #define AMIGA_68040 (1L<<3) 170 #define AMIGA_68881 (1L<<4) 171 #define AMIGA_68882 (1L<<5) 172 #define AMIGA_FPU40 (1L<<6) 173 #define AMIGA_68060 (1L<<7) 174 175 extern int machineid; 176 177 #endif /* _KERNEL */ 178 179 /* 180 * CTL_MACHDEP definitions. 181 */ 182 #define CPU_CONSDEV 1 /* dev_t: console terminal device */ 183 #define CPU_MAXID 2 /* number of valid machdep ids */ 184 185 #ifdef _KERNEL 186 /* 187 * Prototypes from amiga_init.c 188 */ 189 void *alloc_z2mem(long); 190 191 /* 192 * Prototypes from autoconf.c 193 */ 194 int is_a1200(void); 195 int is_a3000(void); 196 int is_a4000(void); 197 #ifdef DRACO 198 #define is_draco() ((machineid >> 24) == 0x7d ? (machineid >> 16) & 0xff : 0) 199 #endif 200 201 #ifdef DRACO 202 /* 203 * Prototypes from kbd.c 204 */ 205 void drkbdintr(void); 206 207 /* 208 * Prototypes from drsc.c 209 */ 210 void drsc_handler(void); 211 #endif 212 213 /* 214 * Prototypes from locore.s 215 */ 216 struct fpframe; 217 struct user; 218 219 void clearseg(vm_offset_t); 220 void doboot(void) __attribute__((__noreturn__)); 221 void loadustp(int); 222 #ifdef FPCOPROC 223 void m68881_save(struct fpframe *); 224 void m68881_restore(struct fpframe *); 225 #endif 226 void physcopyseg(vm_offset_t, vm_offset_t); 227 u_int probeva(u_int, u_int); 228 229 /* 230 * Prototypes from machdep.c 231 */ 232 int badaddr(void *); 233 int badbaddr(void *); 234 void bootsync(void); 235 236 /* 237 * Prototypes from pmap.c: 238 */ 239 void pmap_bootstrap(vm_offset_t, vm_offset_t); 240 241 #endif /* _KERNEL */ 242 243 #endif /* !_MACHINE_CPU_H_ */ 244