cpu.h revision 1.53.2.4
1 /* $NetBSD: cpu.h,v 1.53.2.4 2002/01/08 00:22:58 nathanw 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 #if defined(_KERNEL_OPT) 52 #include "opt_lockdebug.h" 53 #endif 54 55 /* 56 * Get common m68k CPU definitions. 57 */ 58 #include <m68k/cpu.h> 59 #define M68K_MMU_MOTOROLA 60 61 #include <sys/sched.h> 62 struct cpu_info { 63 struct schedstate_percpu ci_schedstate; /* scheduler state */ 64 #if defined(DIAGNOSTIC) || defined(LOCKDEBUG) 65 u_long ci_spin_locks; /* # of spin locks held */ 66 u_long ci_simple_locks; /* # of simple locks held */ 67 #endif 68 }; 69 70 #ifdef _KERNEL 71 extern struct cpu_info cpu_info_store; 72 73 #define curcpu() (&cpu_info_store) 74 75 /* 76 * definitions of cpu-dependent requirements 77 * referenced in generic code 78 */ 79 #define cpu_swapin(p) /* nothing */ 80 #define cpu_wait(p) /* nothing */ 81 #define cpu_swapout(p) /* nothing */ 82 #define cpu_number() 0 83 #define cpu_proc_fork(p1, p2) /* nothing */ 84 85 extern volatile unsigned int interrupt_depth; 86 /* 87 * Arguments to hardclock and gatherstats encapsulate the previous 88 * machine state in an opaque clockframe. One the hp300, we use 89 * what the hardware pushes on an interrupt (frame format 0). 90 */ 91 struct clockframe { 92 u_short sr; /* sr at time of interrupt */ 93 u_long pc; /* pc at time of interrupt */ 94 u_short vo; /* vector offset (4-word frame) */ 95 }; 96 97 #define CLKF_USERMODE(framep) (((framep)->sr & PSL_S) == 0) 98 /*#define CLKF_BASEPRI(framep) (((framep)->sr & PSL_IPL) == 0)*/ 99 #define CLKF_BASEPRI(framep) (0) 100 #define CLKF_PC(framep) ((framep)->pc) 101 #define CLKF_INTR(framep) (interrupt_depth > 1) 102 103 104 /* 105 * Preempt the current process if in interrupt from user mode, 106 * or after the current trap/syscall if in system mode. 107 */ 108 extern int want_resched; /* resched() was called */ 109 #define need_resched(ci) {want_resched = 1; setsoftast();} 110 111 /* 112 * Give a profiling tick to the current process from the softclock 113 * interrupt. On hp300, request an ast to send us through trap(), 114 * marking the proc as needing a profiling tick. 115 */ 116 #define profile_tick(p, framep) ((p)->p_flag |= P_OWEUPC, setsoftast()) 117 #define need_proftick(p) ((p)->p_flag |= P_OWEUPC, setsoftast()) 118 119 /* 120 * Notify the current process (p) that it has a signal pending, 121 * process as soon as possible. 122 */ 123 #define signotify(p) setsoftast() 124 125 extern int astpending; /* need trap before returning to user mode */ 126 #define setsoftast() (astpending = 1) 127 128 #endif /* _KERNEL */ 129 130 /* include support for software interrupts */ 131 #include <machine/mtpr.h> 132 133 /* 134 * The rest of this should probably be moved to ../amiga/amigacpu.h, 135 * although some of it could probably be put into generic 68k headers. 136 */ 137 138 /* values for machineid (happen to be AFF_* settings of AttnFlags) */ 139 #define AMIGA_68020 (1L<<1) 140 #define AMIGA_68030 (1L<<2) 141 #define AMIGA_68040 (1L<<3) 142 #define AMIGA_68881 (1L<<4) 143 #define AMIGA_68882 (1L<<5) 144 #define AMIGA_FPU40 (1L<<6) 145 #define AMIGA_68060 (1L<<7) 146 147 #ifdef _KERNEL 148 int machineid; 149 #endif 150 151 /* 152 * CTL_MACHDEP definitions. 153 */ 154 #define CPU_CONSDEV 1 /* dev_t: console terminal device */ 155 #define CPU_MAXID 2 /* number of valid machdep ids */ 156 157 #define CTL_MACHDEP_NAMES { \ 158 { 0, 0 }, \ 159 { "console_device", CTLTYPE_STRUCT }, \ 160 } 161 162 #ifdef _KERNEL 163 /* 164 * Prototypes from amiga_init.c 165 */ 166 void *alloc_z2mem __P((long)); 167 168 /* 169 * Prototypes from autoconf.c 170 */ 171 int is_a1200 __P((void)); 172 int is_a3000 __P((void)); 173 int is_a4000 __P((void)); 174 #ifdef DRACO 175 #define is_draco() ((machineid >> 24) == 0x7d ? (machineid >> 16) & 0xff : 0) 176 #endif 177 178 /* 179 * Prototypes from clock.c 180 */ 181 u_long clkread __P((void)); 182 183 #ifdef DRACO 184 /* 185 * Prototypes from kbd.c 186 */ 187 void drkbdintr __P((void)); 188 189 /* 190 * Prototypes from drsc.c 191 */ 192 void drsc_handler __P((void)); 193 #endif 194 195 /* 196 * Prototypes from locore.s 197 */ 198 struct fpframe; 199 struct user; 200 struct pcb; 201 202 void clearseg __P((vm_offset_t)); 203 void doboot __P((void)) __attribute__((__noreturn__)); 204 void loadustp __P((int)); 205 #ifdef FPCOPROC 206 void m68881_save __P((struct fpframe *)); 207 void m68881_restore __P((struct fpframe *)); 208 #endif 209 void physcopyseg __P((vm_offset_t, vm_offset_t)); 210 u_int probeva __P((u_int, u_int)); 211 void proc_trampoline __P((void)); 212 void savectx __P((struct pcb *)); 213 void switch_exit __P((struct lwp *)); 214 void switch_lwp_exit __P((struct lwp *)); 215 216 /* 217 * Prototypes from machdep.c 218 */ 219 int badaddr __P((caddr_t)); 220 int badbaddr __P((caddr_t)); 221 void bootsync __P((void)); 222 void dumpconf __P((void)); 223 224 /* 225 * Prototypes from sys_machdep.c: 226 */ 227 int cachectl1 __P((unsigned long, vaddr_t, size_t, struct proc *)); 228 int dma_cachectl __P((caddr_t, int)); 229 230 /* 231 * Prototypes from vm_machdep.c 232 */ 233 int kvtop __P((caddr_t)); 234 void physaccess __P((caddr_t, caddr_t, int, int)); 235 void physunaccess __P((caddr_t, int)); 236 void setredzone __P((u_int *, caddr_t)); 237 238 /* 239 * Prototypes from pmap.c: 240 */ 241 void pmap_bootstrap __P((vm_offset_t, vm_offset_t)); 242 243 #endif /* _KERNEL */ 244 245 #endif /* !_MACHINE_CPU_H_ */ 246
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