cpu.h revision 1.70
1 /* $NetBSD: cpu.h,v 1.70 2001/05/03 00:35:37 thorpej Exp $ */ 2 3 /*- 4 * Copyright (c) 1990 The Regents of the University of California. 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to Berkeley by 8 * William Jolitz. 9 * 10 * Redistribution and use in source and binary forms, with or without 11 * modification, are permitted provided that the following conditions 12 * are met: 13 * 1. Redistributions of source code must retain the above copyright 14 * notice, this list of conditions and the following disclaimer. 15 * 2. Redistributions in binary form must reproduce the above copyright 16 * notice, this list of conditions and the following disclaimer in the 17 * documentation and/or other materials provided with the distribution. 18 * 3. All advertising materials mentioning features or use of this software 19 * must display the following acknowledgement: 20 * This product includes software developed by the University of 21 * California, Berkeley and its contributors. 22 * 4. Neither the name of the University nor the names of its contributors 23 * may be used to endorse or promote products derived from this software 24 * without specific prior written permission. 25 * 26 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 27 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 28 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 29 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 30 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 31 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 32 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 33 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 34 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 35 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 36 * SUCH DAMAGE. 37 * 38 * @(#)cpu.h 5.4 (Berkeley) 5/9/91 39 */ 40 41 #ifndef _I386_CPU_H_ 42 #define _I386_CPU_H_ 43 44 #if defined(_KERNEL) && !defined(_LKM) 45 #include "opt_multiprocessor.h" 46 #include "opt_lockdebug.h" 47 #endif 48 49 /* 50 * Definitions unique to i386 cpu support. 51 */ 52 #include <machine/psl.h> 53 #include <machine/frame.h> 54 #include <machine/segments.h> 55 56 #include <sys/sched.h> 57 58 struct i386_cache_info { 59 int cai_index; 60 u_int32_t cai_desc; 61 u_int cai_totalsize; 62 u_int cai_associativity; 63 u_int cai_linesize; 64 }; 65 66 #define CAI_ITLB 0 /* Instruction TLB (4K pages) */ 67 #define CAI_ITLB2 1 /* Instruction TLB (2/4M pages) */ 68 #define CAI_DTLB 2 /* Data TLB (4K pages) */ 69 #define CAI_DTLB2 3 /* Data TLB (2/4M pages) */ 70 #define CAI_ICACHE 4 /* Instruction cache */ 71 #define CAI_DCACHE 5 /* Data cache */ 72 #define CAI_L2CACHE 6 /* Level 2 cache */ 73 74 #define CAI_COUNT 7 75 76 struct cpu_info { 77 struct schedstate_percpu ci_schedstate; /* scheduler state */ 78 #if defined(DIAGNOSTIC) || defined(LOCKDEBUG) 79 u_long ci_spin_locks; /* # of spin locks held */ 80 u_long ci_simple_locks; /* # of simple locks held */ 81 #endif 82 83 struct i386_cache_info ci_cinfo[CAI_COUNT]; 84 }; 85 86 #ifdef _KERNEL 87 extern struct cpu_info cpu_info_store; 88 89 #define curcpu() (&cpu_info_store) 90 #endif 91 92 /* 93 * definitions of cpu-dependent requirements 94 * referenced in generic code 95 */ 96 #define cpu_swapin(p) /* nothing */ 97 #define cpu_number() 0 98 99 /* 100 * Arguments to hardclock, softclock and statclock 101 * encapsulate the previous machine state in an opaque 102 * clockframe; for now, use generic intrframe. 103 * 104 * XXX intrframe has a lot of gunk we don't need. 105 */ 106 #define clockframe intrframe 107 108 #define CLKF_USERMODE(frame) USERMODE((frame)->if_cs, (frame)->if_eflags) 109 #define CLKF_BASEPRI(frame) ((frame)->if_ppl == 0) 110 #define CLKF_PC(frame) ((frame)->if_eip) 111 #define CLKF_INTR(frame) ((frame)->if_ppl & (1 << IPL_TAGINTR)) 112 113 /* 114 * This is used during profiling to integrate system time. It can safely 115 * assume that the process is resident. 116 */ 117 #define PROC_PC(p) ((p)->p_md.md_regs->tf_eip) 118 119 /* 120 * Preempt the current process if in interrupt from user mode, 121 * or after the current trap/syscall if in system mode. 122 */ 123 int want_resched; /* resched() was called */ 124 #define need_resched(ci) (want_resched = 1, setsoftast()) 125 126 /* 127 * Give a profiling tick to the current process when the user profiling 128 * buffer pages are invalid. On the i386, request an ast to send us 129 * through trap(), marking the proc as needing a profiling tick. 130 */ 131 #define need_proftick(p) ((p)->p_flag |= P_OWEUPC, setsoftast()) 132 133 /* 134 * Notify the current process (p) that it has a signal pending, 135 * process as soon as possible. 136 */ 137 #define signotify(p) setsoftast() 138 139 /* 140 * We need a machine-independent name for this. 141 */ 142 #define DELAY(x) delay(x) 143 144 /* 145 * pull in #defines for kinds of processors 146 */ 147 #include <machine/cputypes.h> 148 149 struct cpu_nocpuid_nameclass { 150 int cpu_vendor; 151 const char *cpu_vendorname; 152 const char *cpu_name; 153 int cpu_class; 154 void (*cpu_setup) __P((void)); 155 void (*cpu_cacheinfo) __P((struct cpu_info *)); 156 }; 157 158 159 struct cpu_cpuid_nameclass { 160 const char *cpu_id; 161 int cpu_vendor; 162 const char *cpu_vendorname; 163 struct cpu_cpuid_family { 164 int cpu_class; 165 const char *cpu_models[CPU_MAXMODEL+2]; 166 void (*cpu_setup) __P((void)); 167 void (*cpu_cacheinfo) __P((struct cpu_info *)); 168 } cpu_family[CPU_MAXFAMILY - CPU_MINFAMILY + 1]; 169 }; 170 171 #ifdef _KERNEL 172 extern int biosbasemem; 173 extern int biosextmem; 174 extern int cpu; 175 extern int cpu_class; 176 extern int cpu_feature; 177 extern int cpu_id; 178 extern char cpu_vendor[]; 179 extern int cpuid_level; 180 extern const struct cpu_nocpuid_nameclass i386_nocpuid_cpus[]; 181 extern const struct cpu_cpuid_nameclass i386_cpuid_cpus[]; 182 183 /* machdep.c */ 184 void delay __P((int)); 185 void dumpconf __P((void)); 186 void cpu_reset __P((void)); 187 void i386_proc0_tss_ldt_init __P((void)); 188 void i386_bufinit __P((void)); 189 190 /* locore.s */ 191 struct region_descriptor; 192 void lgdt __P((struct region_descriptor *)); 193 void fillw __P((short, void *, size_t)); 194 195 struct pcb; 196 void savectx __P((struct pcb *)); 197 void switch_exit __P((struct proc *)); 198 void proc_trampoline __P((void)); 199 200 /* clock.c */ 201 void initrtclock __P((void)); 202 void startrtclock __P((void)); 203 204 /* npx.c */ 205 void npxdrop __P((void)); 206 void npxsave __P((void)); 207 208 /* vm_machdep.c */ 209 int kvtop __P((caddr_t)); 210 211 #if !defined(_LKM) 212 #include "opt_math_emulate.h" 213 #endif 214 #ifdef MATH_EMULATE 215 /* math_emulate.c */ 216 int math_emulate __P((struct trapframe *)); 217 #endif 218 219 #if !defined(_LKM) 220 #include "opt_user_ldt.h" 221 #endif 222 #ifdef USER_LDT 223 /* sys_machdep.h */ 224 int i386_get_ldt __P((struct proc *, void *, register_t *)); 225 int i386_set_ldt __P((struct proc *, void *, register_t *)); 226 #endif 227 228 /* isa_machdep.c */ 229 void isa_defaultirq __P((void)); 230 int isa_nmi __P((void)); 231 232 #if !defined(_LKM) 233 #include "opt_vm86.h" 234 #endif 235 #ifdef VM86 236 /* vm86.c */ 237 void vm86_gpfault __P((struct proc *, int)); 238 #endif /* VM86 */ 239 240 /* trap.c */ 241 void child_return __P((void *)); 242 243 /* consinit.c */ 244 void kgdb_port_init __P((void)); 245 246 /* bus_machdep.c */ 247 void i386_bus_space_init __P((void)); 248 void i386_bus_space_mallocok __P((void)); 249 250 #endif /* _KERNEL */ 251 252 /* 253 * CTL_MACHDEP definitions. 254 */ 255 #define CPU_CONSDEV 1 /* dev_t: console terminal device */ 256 #define CPU_BIOSBASEMEM 2 /* int: bios-reported base mem (K) */ 257 #define CPU_BIOSEXTMEM 3 /* int: bios-reported ext. mem (K) */ 258 #define CPU_NKPDE 4 /* int: number of kernel PDEs */ 259 #define CPU_BOOTED_KERNEL 5 /* string: booted kernel name */ 260 #define CPU_DISKINFO 6 /* disk geometry information */ 261 #define CPU_FPU_PRESENT 7 /* FPU is present */ 262 #define CPU_MAXID 8 /* number of valid machdep ids */ 263 264 #define CTL_MACHDEP_NAMES { \ 265 { 0, 0 }, \ 266 { "console_device", CTLTYPE_STRUCT }, \ 267 { "biosbasemem", CTLTYPE_INT }, \ 268 { "biosextmem", CTLTYPE_INT }, \ 269 { "nkpde", CTLTYPE_INT }, \ 270 { "booted_kernel", CTLTYPE_STRING }, \ 271 { "diskinfo", CTLTYPE_STRUCT }, \ 272 { "fpu_present", CTLTYPE_INT }, \ 273 } 274 275 276 /* 277 * Structure for CPU_DISKINFO sysctl call. 278 * XXX this should be somewhere else. 279 */ 280 #define MAX_BIOSDISKS 16 281 282 struct disklist { 283 int dl_nbiosdisks; /* number of bios disks */ 284 struct biosdisk_info { 285 int bi_dev; /* BIOS device # (0x80 ..) */ 286 int bi_cyl; /* cylinders on disk */ 287 int bi_head; /* heads per track */ 288 int bi_sec; /* sectors per track */ 289 u_int64_t bi_lbasecs; /* total sec. (iff ext13) */ 290 #define BIFLAG_INVALID 0x01 291 #define BIFLAG_EXTINT13 0x02 292 int bi_flags; 293 } dl_biosdisks[MAX_BIOSDISKS]; 294 295 int dl_nnativedisks; /* number of native disks */ 296 struct nativedisk_info { 297 char ni_devname[16]; /* native device name */ 298 int ni_nmatches; /* # of matches w/ BIOS */ 299 int ni_biosmatches[MAX_BIOSDISKS]; /* indices in dl_biosdisks */ 300 } dl_nativedisks[1]; /* actually longer */ 301 }; 302 303 #endif /* !_I386_CPU_H_ */ 304
Indexes created Thu Sep 25 16:09:42 GMT 2025