1/* $NetBSD: cpu.h,v 1.68 2011/11/15 12:23:22 tsutsui 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. Neither the name of the University nor the names of its contributors 21 * may be used to endorse or promote products derived from this software 22 * without specific prior written permission. 23 * 24 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 25 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 26 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 27 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 28 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 29 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 30 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 31 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 32 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 33 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 34 * SUCH DAMAGE. 35 * 36 * from: Utah $Hdr: cpu.h 1.16 91/03/25$ 37 * 38 * @(#)cpu.h 7.7 (Berkeley) 6/27/91 39 */ 40 41#ifndef _MACHINE_CPU_H_ 42#define _MACHINE_CPU_H_ 43 44#if defined(_KERNEL_OPT) 45#include "opt_lockdebug.h" 46#endif 47 48/* 49 * Get common m68k CPU definitions. 50 */ 51#include <m68k/cpu.h> 52 53#if defined(_KERNEL) 54/* 55 * Exported definitions unique to atari/68k cpu support. 56 */ 57#define M68K_MMU_MOTOROLA 58 59void cpu_proc_fork(struct proc *, struct proc *); 60 61/* 62 * Arguments to hardclock and gatherstats encapsulate the previous 63 * machine state in an opaque clockframe. On the hp300, we use 64 * what the hardware pushes on an interrupt (frame format 0). 65 */ 66struct clockframe { 67 u_int cf_regs[4]; /* d0,d1,a0,a1 (see locore.s) */ 68 u_short cf_sr; /* sr at time of interrupt */ 69 u_long cf_pc; /* pc at time of interrupt */ 70 u_short cf_vo; /* vector offset (4-word frame) */ 71} __attribute__((packed)); 72 73#define CLKF_USERMODE(framep) (((framep)->cf_sr & PSL_S) == 0) 74#define CLKF_PC(framep) ((framep)->cf_pc) 75#if 0 76/* We would like to do it this way... */ 77#define CLKF_INTR(framep) (((framep)->cf_sr & PSL_M) == 0) 78#else 79/* but until we start using PSL_M, we have to do this instead */ 80#define CLKF_INTR(framep) (0) /* XXX */ 81#endif 82 83 84/* 85 * Preempt the current process if in interrupt from user mode, 86 * or after the current trap/syscall if in system mode. 87 */ 88#define cpu_need_resched(ci,flags) {ci->ci_want_resched = 1; setsoftast();} 89 90/* 91 * Give a profiling tick to the current process from the softclock 92 * interrupt. On hp300, request an ast to send us through trap(), 93 * marking the proc as needing a profiling tick. 94 */ 95#define profile_tick(l, framep) ((l)->l_pflag |= LP_OWEUPC, setsoftast()) 96#define cpu_need_proftick(l) ((l)->l_pflag |= LP_OWEUPC, setsoftast()) 97 98/* 99 * Notify the current process (p) that it has a signal pending, 100 * process as soon as possible. 101 */ 102#define cpu_signotify(l) setsoftast() 103 104#define setsoftast() (astpending = 1) 105 106extern int astpending; /* need trap before returning to user mode */ 107 108/* 109 * The rest of this should probably be moved to ../atari/ataricpu.h, 110 * although some of it could probably be put into generic 68k headers. 111 */ 112#define BASEPRI(sr) ((sr & PSL_IPL) == 0) 113#endif /* _KERNEL */ 114 115/* 116 * Values for machineid. 117 */ 118#define ATARI_68000 1 /* 68000 CPU */ 119#define ATARI_68010 (1<<1) /* 68010 CPU */ 120#define ATARI_68020 (1L<<2) /* 68020 CPU */ 121#define ATARI_68030 (1L<<3) /* 68030 CPU */ 122#define ATARI_68040 (1L<<4) /* 68040 CPU */ 123#define ATARI_68060 (1L<<6) /* 68060 CPU */ 124#define ATARI_TT (1L<<11) /* This is a TT030 */ 125#define ATARI_FALCON (1L<<12) /* Falcon */ 126#define ATARI_HADES (1L<<13) /* Hades */ 127#define ATARI_MILAN (1L<<14) /* Milan */ 128 129#define ATARI_CLKBROKEN (1L<<16) 130 131#define ATARI_ANYCPU (ATARI_68000|ATARI_68010|ATARI_68020|ATARI_68030 \ 132 |ATARI_68040|ATARI_68060) 133 134#define ATARI_ANYMACH (ATARI_TT|ATARI_FALCON|ATARI_HADES|ATARI_MILAN) 135 136#if defined(_KERNEL) 137extern int machineid; 138#endif /* _KERNEL */ 139 140/* 141 * CTL_MACHDEP definitions. 142 */ 143#define CPU_CONSDEV 1 /* dev_t: console terminal device */ 144#define CPU_MAXID 2 /* number of valid machdep ids */ 145 146#ifdef _KERNEL 147/* 148 * Prototypes from atari_init.c 149 */ 150int cpu_dump(int (*)(dev_t, daddr_t, void *, size_t), daddr_t *); 151int cpu_dumpsize(void); 152 153/* 154 * Prototypes from autoconf.c 155 */ 156void config_console(void); 157 158/* 159 * Prototypes from fpu.c 160 */ 161const char *fpu_describe(int); 162 163/* 164 * Prototypes from locore.s 165 */ 166void clearseg(paddr_t); 167void doboot(void); 168void loadustp(int); 169void physcopyseg(paddr_t, paddr_t); 170u_int probeva(u_int, u_int); 171int suline(void *, void *); 172 173/* 174 * Prototypes from machdep.c: 175 */ 176int badbaddr(void *, int); 177void consinit(void); 178typedef void (*si_farg)(void *, void *); /* XXX */ 179void init_sicallback(void); /* XXX */ 180void add_sicallback(si_farg, void *, void *); 181void rem_sicallback(si_farg); 182void dumpsys(void); 183vaddr_t reserve_dumppages(vaddr_t); 184 185 186/* 187 * Prototypes from nvram.c: 188 */ 189struct uio; 190int nvram_uio(struct uio *); 191 192/* 193 * Prototypes from pci_machdep.c 194 */ 195void init_pci_bus(void); 196 197#endif /* _KERNEL */ 198#endif /* !_MACHINE_CPU_H_ */ 199