1 /* $NetBSD: cpu.h,v 1.75 2010/02/09 18:13:10 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_number() 0 115 116 void cpu_proc_fork(struct proc *, struct proc *); 117 118 119 extern volatile unsigned int interrupt_depth; 120 /* 121 * Arguments to hardclock and gatherstats encapsulate the previous 122 * machine state in an opaque clockframe. One the hp300, we use 123 * what the hardware pushes on an interrupt (frame format 0). 124 */ 125 struct clockframe { 126 u_short sr; /* sr at time of interrupt */ 127 u_long pc; /* pc at time of interrupt */ 128 u_short vo; /* vector offset (4-word frame) */ 129 }; 130 131 #define CLKF_USERMODE(framep) (((framep)->sr & PSL_S) == 0) 132 #define CLKF_PC(framep) ((framep)->pc) 133 #define CLKF_INTR(framep) (interrupt_depth > 1) 134 135 136 /* 137 * Preempt the current process if in interrupt from user mode, 138 * or after the current trap/syscall if in system mode. 139 */ 140 #define cpu_need_resched(ci,flags) {ci->ci_want_resched = 1; setsoftast();} 141 142 /* 143 * Give a profiling tick to the current process from the softclock 144 * interrupt. On hp300, request an ast to send us through trap(), 145 * marking the proc as needing a profiling tick. 146 */ 147 #define profile_tick(l, framep) ((l)->l_pflag |= LP_OWEUPC, setsoftast()) 148 #define cpu_need_proftick(l) ((l)->l_pflag |= LP_OWEUPC, setsoftast()) 149 150 /* 151 * Notify the current process (p) that it has a signal pending, 152 * process as soon as possible. 153 */ 154 #define cpu_signotify(l) setsoftast() 155 156 extern int astpending; /* need trap before returning to user mode */ 157 #define setsoftast() (astpending = 1) 158 159 /* 160 * The rest of this should probably be moved to ../amiga/amigacpu.h, 161 * although some of it could probably be put into generic 68k headers. 162 */ 163 164 /* values for machineid (happen to be AFF_* settings of AttnFlags) */ 165 #define AMIGA_68020 (1L<<1) 166 #define AMIGA_68030 (1L<<2) 167 #define AMIGA_68040 (1L<<3) 168 #define AMIGA_68881 (1L<<4) 169 #define AMIGA_68882 (1L<<5) 170 #define AMIGA_FPU40 (1L<<6) 171 #define AMIGA_68060 (1L<<7) 172 173 extern int machineid; 174 175 #endif /* _KERNEL */ 176 177 /* 178 * CTL_MACHDEP definitions. 179 */ 180 #define CPU_CONSDEV 1 /* dev_t: console terminal device */ 181 #define CPU_MAXID 2 /* number of valid machdep ids */ 182 183 #ifdef _KERNEL 184 /* 185 * Prototypes from amiga_init.c 186 */ 187 void *alloc_z2mem(long); 188 189 /* 190 * Prototypes from autoconf.c 191 */ 192 int is_a1200(void); 193 int is_a3000(void); 194 int is_a4000(void); 195 #ifdef DRACO 196 #define is_draco() ((machineid >> 24) == 0x7d ? (machineid >> 16) & 0xff : 0) 197 #endif 198 199 #ifdef DRACO 200 /* 201 * Prototypes from kbd.c 202 */ 203 void drkbdintr(void); 204 205 /* 206 * Prototypes from drsc.c 207 */ 208 void drsc_handler(void); 209 #endif 210 211 /* 212 * Prototypes from locore.s 213 */ 214 struct fpframe; 215 216 void clearseg(vm_offset_t); 217 void doboot(void) __attribute__((__noreturn__)); 218 void loadustp(int); 219 #ifdef FPCOPROC 220 void m68881_save(struct fpframe *); 221 void m68881_restore(struct fpframe *); 222 #endif 223 void physcopyseg(vm_offset_t, vm_offset_t); 224 u_int probeva(u_int, u_int); 225 226 /* 227 * Prototypes from machdep.c 228 */ 229 int badaddr(void *); 230 int badbaddr(void *); 231 void bootsync(void); 232 233 /* 234 * Prototypes from pmap.c: 235 */ 236 void pmap_bootstrap(vm_offset_t, vm_offset_t); 237 238 #endif /* _KERNEL */ 239 240 /* 241 * Reorder protection when accessing device registers. 242 */ 243 #define amiga_membarrier() 244 245 /* 246 * Finish all bus operations and flush pipelines. 247 */ 248 #define amiga_cpu_sync() __asm volatile ("nop") 249 250 #endif /* !_MACHINE_CPU_H_ */ 251