cpu.h revision 1.46
1 /* $NetBSD: cpu.h,v 1.46 2011/02/08 20:20:20 rmind Exp $ */ 2 3 /* 4 * Copyright (c) 1988 University of Utah. 5 * Copyright (c) 1982, 1990, 1993 6 * The Regents of the University of California. 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 8.4 (Berkeley) 1/5/94 39 */ 40 41 #ifndef _MACHINE_CPU_H_ 42 #define _MACHINE_CPU_H_ 43 44 #if defined(_KERNEL) 45 46 /* 47 * Exported definitions unique to mvme68k/68k cpu support. 48 */ 49 50 #if defined(_KERNEL_OPT) 51 #include "opt_lockdebug.h" 52 #include "opt_m68k_arch.h" 53 #endif 54 55 /* 56 * Get common m68k CPU definitions. 57 */ 58 #include <m68k/cpu.h> 59 #define M68K_MMU_MOTOROLA 60 61 /* 62 * Arguments to hardclock and gatherstats encapsulate the previous 63 * machine state in an opaque clockframe. One the mvme68k, we use 64 * what the hardware pushes on an interrupt (frame format 0). 65 */ 66 struct clockframe { 67 u_short sr; /* sr at time of interrupt */ 68 u_long pc; /* pc at time of interrupt */ 69 u_short fmt:4, 70 vec:12; /* vector offset (4-word frame) */ 71 } __attribute__((packed)); 72 73 #define CLKF_USERMODE(framep) (((framep)->sr & PSL_S) == 0) 74 #define CLKF_PC(framep) ((framep)->pc) 75 76 /* 77 * The clock interrupt handler can determine if it's a nested 78 * interrupt by checking for interrupt_depth > 1. 79 * (Remember, the clock interrupt handler itself will cause the 80 * depth counter to be incremented). 81 */ 82 extern volatile unsigned int interrupt_depth; 83 #define CLKF_INTR(framep) (interrupt_depth > 1) 84 85 86 /* 87 * Preempt the current process if in interrupt from user mode, 88 * or after the current trap/syscall if in system mode. 89 */ 90 #define cpu_need_resched(ci, flags) \ 91 do { ci->ci_want_resched++; aston(); } while (/* CONSTCOND */0) 92 93 /* 94 * Give a profiling tick to the current process when the user profiling 95 * buffer pages are invalid. On the hp300, request an ast to send us 96 * through trap, marking the proc as needing a profiling tick. 97 */ 98 #define cpu_need_proftick(l) \ 99 do { (l)->l_pflag |= LP_OWEUPC; aston(); } while (/* CONSTCOND */0) 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) aston() 106 107 extern int astpending; /* need to trap before returning to user mode */ 108 #define aston() (astpending++) 109 110 #endif /* _KERNEL */ 111 112 /* 113 * CTL_MACHDEP definitions. 114 */ 115 #define CPU_CONSDEV 1 /* dev_t: console terminal device */ 116 #define CPU_MAXID 2 /* number of valid machdep ids */ 117 118 #ifdef _KERNEL 119 /* 120 * Associate MVME models with CPU types. 121 */ 122 #define MVME68K 1 123 124 /* 125 * MVME-147; 68030 CPU 126 */ 127 #if defined(MVME147) && !defined(M68030) 128 #define M68030 129 #endif 130 131 /* 132 * MVME-162/166/167; 68040 CPU 133 */ 134 #if (defined(MVME162) || defined(MVME167)) && !defined(M68040) 135 #define M68040 136 #endif 137 138 /* 139 * MVME-172/177; 68060 CPU 140 */ 141 #if (defined(MVME172) || defined(MVME177)) && !defined(M68060) 142 #define M68060 143 #endif 144 #endif /* _KERNEL */ 145 146 /* 147 * Values for machineid; these match the Bug's values. 148 */ 149 #define MVME_147 0x147 150 #define MVME_162 0x162 151 #define MVME_166 0x166 152 #define MVME_167 0x167 153 #define MVME_172 0x172 154 #define MVME_177 0x177 155 156 #ifdef _KERNEL 157 extern int machineid; 158 extern int cpuspeed; 159 extern char *intiobase, *intiolimit; 160 extern u_int intiobase_phys, intiotop_phys; 161 extern u_long ether_data_buff_size; 162 extern u_char mvme_ea[6]; 163 164 void doboot(int) 165 __attribute__((__noreturn__)); 166 int nmihand(void *); 167 void mvme68k_abort(const char *); 168 void *iomap(u_long, size_t); 169 void iounmap(void *, size_t); 170 void loadustp(paddr_t); 171 172 /* physical memory addresses where mvme147's onboard devices live */ 173 #define INTIOBASE147 (0xfffe0000u) 174 #define INTIOTOP147 (0xfffe5000u) 175 176 /* ditto for mvme1[67][27] */ 177 #define INTIOBASE1xx (0xfff40000u) 178 #define INTIOTOP1xx (0xfffd0000u) 179 180 #endif /* _KERNEL */ 181 182 #endif /* _MACHINE_CPU_H_ */ 183
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