cpu.h revision 1.55
1 /* $NetBSD: cpu.h,v 1.55 2003/01/17 22:17:06 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 #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 84 void cpu_proc_fork(struct proc *, struct proc *); 85 86 87 extern volatile unsigned int interrupt_depth; 88 /* 89 * Arguments to hardclock and gatherstats encapsulate the previous 90 * machine state in an opaque clockframe. One the hp300, we use 91 * what the hardware pushes on an interrupt (frame format 0). 92 */ 93 struct clockframe { 94 u_short sr; /* sr at time of interrupt */ 95 u_long pc; /* pc at time of interrupt */ 96 u_short vo; /* vector offset (4-word frame) */ 97 }; 98 99 #define CLKF_USERMODE(framep) (((framep)->sr & PSL_S) == 0) 100 /*#define CLKF_BASEPRI(framep) (((framep)->sr & PSL_IPL) == 0)*/ 101 #define CLKF_BASEPRI(framep) (0) 102 #define CLKF_PC(framep) ((framep)->pc) 103 #define CLKF_INTR(framep) (interrupt_depth > 1) 104 105 106 /* 107 * Preempt the current process if in interrupt from user mode, 108 * or after the current trap/syscall if in system mode. 109 */ 110 extern int want_resched; /* resched() was called */ 111 #define need_resched(ci) {want_resched = 1; setsoftast();} 112 113 /* 114 * Give a profiling tick to the current process from the softclock 115 * interrupt. On hp300, request an ast to send us through trap(), 116 * marking the proc as needing a profiling tick. 117 */ 118 #define profile_tick(p, framep) ((p)->p_flag |= P_OWEUPC, setsoftast()) 119 #define need_proftick(p) ((p)->p_flag |= P_OWEUPC, setsoftast()) 120 121 /* 122 * Notify the current process (p) that it has a signal pending, 123 * process as soon as possible. 124 */ 125 #define signotify(p) setsoftast() 126 127 extern int astpending; /* need trap before returning to user mode */ 128 #define setsoftast() (astpending = 1) 129 130 #endif /* _KERNEL */ 131 132 /* include support for software interrupts */ 133 #include <machine/mtpr.h> 134 135 /* 136 * The rest of this should probably be moved to ../amiga/amigacpu.h, 137 * although some of it could probably be put into generic 68k headers. 138 */ 139 140 /* values for machineid (happen to be AFF_* settings of AttnFlags) */ 141 #define AMIGA_68020 (1L<<1) 142 #define AMIGA_68030 (1L<<2) 143 #define AMIGA_68040 (1L<<3) 144 #define AMIGA_68881 (1L<<4) 145 #define AMIGA_68882 (1L<<5) 146 #define AMIGA_FPU40 (1L<<6) 147 #define AMIGA_68060 (1L<<7) 148 149 #ifdef _KERNEL 150 extern int machineid; 151 #endif 152 153 /* 154 * CTL_MACHDEP definitions. 155 */ 156 #define CPU_CONSDEV 1 /* dev_t: console terminal device */ 157 #define CPU_MAXID 2 /* number of valid machdep ids */ 158 159 #define CTL_MACHDEP_NAMES { \ 160 { 0, 0 }, \ 161 { "console_device", CTLTYPE_STRUCT }, \ 162 } 163 164 #ifdef _KERNEL 165 /* 166 * Prototypes from amiga_init.c 167 */ 168 void *alloc_z2mem __P((long)); 169 170 /* 171 * Prototypes from autoconf.c 172 */ 173 int is_a1200 __P((void)); 174 int is_a3000 __P((void)); 175 int is_a4000 __P((void)); 176 #ifdef DRACO 177 #define is_draco() ((machineid >> 24) == 0x7d ? (machineid >> 16) & 0xff : 0) 178 #endif 179 180 /* 181 * Prototypes from clock.c 182 */ 183 u_long clkread __P((void)); 184 185 #ifdef DRACO 186 /* 187 * Prototypes from kbd.c 188 */ 189 void drkbdintr __P((void)); 190 191 /* 192 * Prototypes from drsc.c 193 */ 194 void drsc_handler __P((void)); 195 #endif 196 197 /* 198 * Prototypes from locore.s 199 */ 200 struct fpframe; 201 struct user; 202 struct pcb; 203 204 void clearseg __P((vm_offset_t)); 205 void doboot __P((void)) __attribute__((__noreturn__)); 206 void loadustp __P((int)); 207 #ifdef FPCOPROC 208 void m68881_save __P((struct fpframe *)); 209 void m68881_restore __P((struct fpframe *)); 210 #endif 211 void physcopyseg __P((vm_offset_t, vm_offset_t)); 212 u_int probeva __P((u_int, u_int)); 213 void proc_trampoline __P((void)); 214 void savectx __P((struct pcb *)); 215 void switch_exit __P((struct lwp *)); 216 void switch_lwp_exit __P((struct lwp *)); 217 218 /* 219 * Prototypes from machdep.c 220 */ 221 int badaddr __P((caddr_t)); 222 int badbaddr __P((caddr_t)); 223 void bootsync __P((void)); 224 void dumpconf __P((void)); 225 226 /* 227 * Prototypes from sys_machdep.c: 228 */ 229 int cachectl1 __P((unsigned long, vaddr_t, size_t, struct proc *)); 230 int dma_cachectl __P((caddr_t, int)); 231 232 /* 233 * Prototypes from vm_machdep.c 234 */ 235 int kvtop __P((caddr_t)); 236 void physaccess __P((caddr_t, caddr_t, int, int)); 237 void physunaccess __P((caddr_t, int)); 238 void setredzone __P((u_int *, caddr_t)); 239 240 /* 241 * Prototypes from pmap.c: 242 */ 243 void pmap_bootstrap __P((vm_offset_t, vm_offset_t)); 244 245 #endif /* _KERNEL */ 246 247 #endif /* !_MACHINE_CPU_H_ */ 248
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