1 /* $NetBSD: cpu.h,v 1.73 2019/11/23 19:40:34 ad 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 59 void 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 */ 66 struct 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,l,flags) do { \ 89 __USE(flags); \ 90 setsoftast(); \ 91 } while (/*CONSTCOND*/0) 92 93 /* 94 * Give a profiling tick to the current process from the softclock 95 * interrupt. On hp300, request an ast to send us through trap(), 96 * marking the proc as needing a profiling tick. 97 */ 98 #define profile_tick(l, framep) ((l)->l_pflag |= LP_OWEUPC, setsoftast()) 99 #define cpu_need_proftick(l) ((l)->l_pflag |= LP_OWEUPC, setsoftast()) 100 101 /* 102 * Notify the current process (p) that it has a signal pending, 103 * process as soon as possible. 104 */ 105 #define cpu_signotify(l) setsoftast() 106 107 #define setsoftast() (astpending = 1) 108 109 extern int astpending; /* need trap before returning to user mode */ 110 111 /* 112 * The rest of this should probably be moved to ../atari/ataricpu.h, 113 * although some of it could probably be put into generic 68k headers. 114 */ 115 #define BASEPRI(sr) ((sr & PSL_IPL) == 0) 116 #endif /* _KERNEL */ 117 118 /* 119 * Values for machineid. 120 */ 121 #define ATARI_68000 1 /* 68000 CPU */ 122 #define ATARI_68010 (1<<1) /* 68010 CPU */ 123 #define ATARI_68020 (1L<<2) /* 68020 CPU */ 124 #define ATARI_68030 (1L<<3) /* 68030 CPU */ 125 #define ATARI_68040 (1L<<4) /* 68040 CPU */ 126 #define ATARI_68060 (1L<<6) /* 68060 CPU */ 127 #define ATARI_TT (1L<<11) /* This is a TT030 */ 128 #define ATARI_FALCON (1L<<12) /* Falcon */ 129 #define ATARI_HADES (1L<<13) /* Hades */ 130 #define ATARI_MILAN (1L<<14) /* Milan */ 131 132 #define ATARI_CLKBROKEN (1L<<16) 133 134 #define ATARI_ANYCPU (ATARI_68000|ATARI_68010|ATARI_68020|ATARI_68030 \ 135 |ATARI_68040|ATARI_68060) 136 137 #define ATARI_ANYMACH (ATARI_TT|ATARI_FALCON|ATARI_HADES|ATARI_MILAN) 138 139 #if defined(_KERNEL) 140 extern int machineid; 141 142 /* 143 * Prototypes from atari_init.c 144 */ 145 int cpu_dump(int (*)(dev_t, daddr_t, void *, size_t), daddr_t *); 146 int cpu_dumpsize(void); 147 148 /* 149 * Prototypes from autoconf.c 150 */ 151 void config_console(void); 152 153 /* 154 * Prototypes from fpu.c 155 */ 156 const char *fpu_describe(int); 157 158 /* 159 * Prototypes from locore.s 160 */ 161 void clearseg(paddr_t); 162 void doboot(void); 163 void loadustp(int); 164 void physcopyseg(paddr_t, paddr_t); 165 u_int probeva(u_int, u_int); 166 167 /* 168 * Prototypes from machdep.c: 169 */ 170 int badbaddr(void *, int); 171 void consinit(void); 172 typedef void (*si_farg)(void *, void *); /* XXX */ 173 void init_sicallback(void); /* XXX */ 174 void add_sicallback(si_farg, void *, void *); 175 void rem_sicallback(si_farg); 176 void dumpsys(void); 177 vaddr_t reserve_dumppages(vaddr_t); 178 179 180 /* 181 * Prototypes from nvram.c: 182 */ 183 struct uio; 184 int nvram_uio(struct uio *); 185 186 /* 187 * Prototypes from pci_machdep.c 188 */ 189 void init_pci_bus(void); 190 191 #endif /* _KERNEL */ 192 #endif /* !_MACHINE_CPU_H_ */ 193