1 /* $NetBSD: cpu.h,v 1.79 2011/05/16 13:22:52 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 amiga/68k cpu support. 56 */ 57 #define M68K_MMU_MOTOROLA 58 59 extern volatile unsigned int interrupt_depth; 60 /* 61 * Arguments to hardclock and gatherstats encapsulate the previous 62 * machine state in an opaque clockframe. One the hp300, we use 63 * what the hardware pushes on an interrupt (frame format 0). 64 */ 65 struct clockframe { 66 u_short sr; /* sr at time of interrupt */ 67 u_long pc; /* pc at time of interrupt */ 68 u_short vo; /* vector offset (4-word frame) */ 69 }; 70 71 #define CLKF_USERMODE(framep) (((framep)->sr & PSL_S) == 0) 72 #define CLKF_PC(framep) ((framep)->pc) 73 #define CLKF_INTR(framep) (interrupt_depth > 1) 74 75 76 /* 77 * Preempt the current process if in interrupt from user mode, 78 * or after the current trap/syscall if in system mode. 79 */ 80 #define cpu_need_resched(ci,flags) {ci->ci_want_resched = 1; setsoftast();} 81 82 /* 83 * Give a profiling tick to the current process from the softclock 84 * interrupt. On hp300, request an ast to send us through trap(), 85 * marking the proc as needing a profiling tick. 86 */ 87 #define profile_tick(l, framep) ((l)->l_pflag |= LP_OWEUPC, setsoftast()) 88 #define cpu_need_proftick(l) ((l)->l_pflag |= LP_OWEUPC, setsoftast()) 89 90 /* 91 * Notify the current process (p) that it has a signal pending, 92 * process as soon as possible. 93 */ 94 #define cpu_signotify(l) setsoftast() 95 96 extern int astpending; /* need trap before returning to user mode */ 97 #define setsoftast() (astpending = 1) 98 99 /* 100 * The rest of this should probably be moved to ../amiga/amigacpu.h, 101 * although some of it could probably be put into generic 68k headers. 102 */ 103 104 /* values for machineid (happen to be AFF_* settings of AttnFlags) */ 105 #define AMIGA_68020 (1L<<1) 106 #define AMIGA_68030 (1L<<2) 107 #define AMIGA_68040 (1L<<3) 108 #define AMIGA_68881 (1L<<4) 109 #define AMIGA_68882 (1L<<5) 110 #define AMIGA_FPU40 (1L<<6) 111 #define AMIGA_68060 (1L<<7) 112 113 extern int machineid; 114 115 #endif /* _KERNEL */ 116 117 /* 118 * CTL_MACHDEP definitions. 119 */ 120 #define CPU_CONSDEV 1 /* dev_t: console terminal device */ 121 #define CPU_MAXID 2 /* number of valid machdep ids */ 122 123 #ifdef _KERNEL 124 /* 125 * Prototypes from amiga_init.c 126 */ 127 void *alloc_z2mem(long); 128 129 /* 130 * Prototypes from autoconf.c 131 */ 132 int is_a600(void); 133 int is_a1200(void); 134 int is_a3000(void); 135 int is_a4000(void); 136 #ifdef DRACO 137 #define is_draco() ((machineid >> 24) == 0x7d ? (machineid >> 16) & 0xff : 0) 138 #endif 139 140 #ifdef DRACO 141 /* 142 * Prototypes from kbd.c 143 */ 144 void drkbdintr(void); 145 146 /* 147 * Prototypes from drsc.c 148 */ 149 void drsc_handler(void); 150 #endif 151 152 /* 153 * Prototypes from locore.s 154 */ 155 void clearseg(vm_offset_t); 156 void doboot(void) __attribute__((__noreturn__)); 157 void loadustp(int); 158 void physcopyseg(vm_offset_t, vm_offset_t); 159 u_int probeva(u_int, u_int); 160 161 /* 162 * Prototypes from machdep.c 163 */ 164 int badaddr(void *); 165 int badbaddr(void *); 166 void bootsync(void); 167 168 /* 169 * Prototypes from pmap.c: 170 */ 171 void pmap_bootstrap(vm_offset_t, vm_offset_t); 172 173 #endif /* _KERNEL */ 174 175 /* 176 * Reorder protection when accessing device registers. 177 */ 178 #define amiga_membarrier() 179 180 /* 181 * Finish all bus operations and flush pipelines. 182 */ 183 #define amiga_cpu_sync() __asm volatile ("nop") 184 185 #endif /* !_MACHINE_CPU_H_ */ 186