cpu.h revision 1.38
1 /* $NetBSD: cpu.h,v 1.38 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 _NEWS68K_CPU_H_ 42 #define _NEWS68K_CPU_H_ 43 44 #if defined(_KERNEL) 45 46 /* 47 * Exported definitions unique to news68k 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 60 /* 61 * XXX news1700 L2 cache would be corrupted with DC_BE and IC_BE... 62 * XXX Should these be defined in machine/cpu.h? 63 */ 64 #undef CACHE_ON 65 #undef CACHE_CLR 66 #undef IC_CLEAR 67 #undef DC_CLEAR 68 #define CACHE_ON (DC_WA|DC_CLR|DC_ENABLE|IC_CLR|IC_ENABLE) 69 #define CACHE_CLR CACHE_ON 70 #define IC_CLEAR (DC_WA|DC_ENABLE|IC_CLR|IC_ENABLE) 71 #define DC_CLEAR (DC_WA|DC_CLR|DC_ENABLE|IC_ENABLE) 72 73 #define DCIC_CLR (DC_CLR|IC_CLR) 74 #define CACHE_BE (DC_BE|IC_BE) 75 76 /* 77 * Get interrupt glue. 78 */ 79 #include <machine/intr.h> 80 81 /* 82 * Arguments to hardclock and gatherstats encapsulate the previous 83 * machine state in an opaque clockframe. One the hp300, we use 84 * what the hardware pushes on an interrupt (frame format 0). 85 */ 86 struct clockframe { 87 u_short sr; /* sr at time of interrupt */ 88 u_long pc; /* pc at time of interrupt */ 89 u_short vo; /* vector offset (4-word frame) */ 90 }; 91 92 #define CLKF_USERMODE(framep) (((framep)->sr & PSL_S) == 0) 93 #define CLKF_PC(framep) ((framep)->pc) 94 #if 0 95 /* We would like to do it this way... */ 96 #define CLKF_INTR(framep) (((framep)->sr & PSL_M) == 0) 97 #else 98 /* but until we start using PSL_M, we have to do this instead */ 99 #include <machine/intr.h> 100 #define CLKF_INTR(framep) (idepth > 1) /* XXX */ 101 #endif 102 103 104 /* 105 * Preempt the current process if in interrupt from user mode, 106 * or after the current trap/syscall if in system mode. 107 */ 108 #define cpu_need_resched(ci, flags) \ 109 do { ci->ci_want_resched = 1; aston(); } while (/* CONSTCOND */0) 110 111 /* 112 * Give a profiling tick to the current process when the user profiling 113 * buffer pages are invalid. On the hp300, request an ast to send us 114 * through trap, marking the proc as needing a profiling tick. 115 */ 116 #define cpu_need_proftick(l) \ 117 do { (l)->l_pflag |= LP_OWEUPC; aston(); } while (/* CONSTCOND */0) 118 119 /* 120 * Notify the current process (p) that it has a signal pending, 121 * process as soon as possible. 122 */ 123 #define cpu_signotify(l) aston() 124 125 extern int astpending; /* need to trap before returning to user mode */ 126 extern volatile u_char *ctrl_ast; 127 #define aston() \ 128 do { astpending++; *ctrl_ast = 0xff; } while (/* CONSTCOND */0) 129 130 #endif /* _KERNEL */ 131 132 /* 133 * CTL_MACHDEP definitions. 134 */ 135 #define CPU_CONSDEV 1 /* dev_t: console terminal device */ 136 #define CPU_MAXID 2 /* number of valid machdep ids */ 137 138 #ifdef _KERNEL 139 140 #if defined(news1700) || defined(news1200) 141 #ifndef M68030 142 #define M68030 143 #endif 144 #define M68K_MMU_MOTOROLA 145 #endif 146 147 #if defined(news1700) 148 #define CACHE_HAVE_PAC 149 #endif 150 151 #endif 152 153 #ifdef _KERNEL 154 extern int systype; 155 #define NEWS1700 0 156 #define NEWS1200 1 157 158 extern int cpuspeed; 159 extern char *intiobase, *intiolimit, *extiobase; 160 extern u_int intiobase_phys, intiotop_phys; 161 extern u_int extiobase_phys, extiotop_phys; 162 extern u_int intrcnt[]; 163 164 extern void (*vectab[])(void); 165 166 struct frame; 167 struct fpframe; 168 169 /* locore.s functions */ 170 void m68881_save(struct fpframe *); 171 void m68881_restore(struct fpframe *); 172 173 int suline(void *, void *); 174 void loadustp(int); 175 void badtrap(void); 176 void intrhand_vectored(void); 177 int getsr(void); 178 179 180 void doboot(int) 181 __attribute__((__noreturn__)); 182 void nmihand(struct frame *); 183 void ecacheon(void); 184 void ecacheoff(void); 185 186 /* machdep.c functions */ 187 int badaddr(void *, int); 188 int badbaddr(void *); 189 190 #endif 191 192 /* physical memory sections */ 193 #define ROMBASE 0xe0000000 194 195 #define INTIOBASE1700 0xe0c00000 196 #define INTIOTOP1700 0xe1d00000 /* XXX */ 197 #define EXTIOBASE1700 0xf0f00000 198 #define EXTIOTOP1700 0xf1000000 /* XXX */ 199 #define CTRL_POWER1700 0xe1380000 200 #define CTRL_LED1700 0xe0dc0000 201 202 #define INTIOBASE1200 0xe1000000 203 #define INTIOTOP1200 0xe1d00000 /* XXX */ 204 #define EXTIOBASE1200 0xe4000000 205 #define EXTIOTOP1200 0xe4020000 /* XXX */ 206 #define CTRL_POWER1200 0xe1000000 207 #define CTRL_LED1200 0xe1500001 208 209 #define MAXADDR 0xfffff000 210 211 /* 212 * Internal IO space: 213 * 214 * Internal IO space is mapped in the kernel from ``intiobase'' to 215 * ``intiolimit'' (defined in locore.s). Since it is always mapped, 216 * conversion between physical and kernel virtual addresses is easy. 217 */ 218 #define ISIIOVA(va) \ 219 ((char *)(va) >= intiobase && (char *)(va) < intiolimit) 220 #define IIOV(pa) (((u_int)(pa) - intiobase_phys) + (u_int)intiobase) 221 #define ISIIOPA(pa) \ 222 ((u_int)(pa) >= intiobase_phys && (u_int)(pa) < intiotop_phys) 223 #define IIOP(va) (((u_int)(va) - (u_int)intiobase) + intiobase_phys) 224 #define IIOPOFF(pa) ((u_int)(pa) - intiobase_phys) 225 226 /* XXX EIO space mapping should be modified like hp300 XXX */ 227 #define EIOSIZE (extiotop_phys - extiobase_phys) 228 #define ISEIOVA(va) \ 229 ((char *)(va) >= extiobase && (char *)(va) < (char *)EIOSIZE) 230 #define EIOV(pa) (((u_int)(pa) - extiobase_phys) + (u_int)extiobase) 231 232 #if defined(CACHE_HAVE_PAC) || defined(CACHE_HAVE_VAC) 233 #define M68K_CACHEOPS_MACHDEP 234 #endif 235 236 #ifdef CACHE_HAVE_PAC 237 #define M68K_CACHEOPS_MACHDEP_PCIA 238 #endif 239 240 #ifdef CACHE_HAVE_VAC 241 #define M68K_CACHEOPS_MACHDEP_DCIA 242 #define M68K_CACHEOPS_MACHDEP_DCIS 243 #define M68K_CACHEOPS_MACHDEP_DCIU 244 #endif 245 246 #endif /* !_NEWS68K_CPU_H_ */ 247
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