cpu.h revision 1.79
1 /* $NetBSD: cpu.h,v 1.79 2002/05/08 18:45:49 mycroft 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_OPT) 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 u_int ci_cflush_lsize; /* CFLUSH insn line size */ 84 struct i386_cache_info ci_cinfo[CAI_COUNT]; 85 void (*ci_info) __P((int)); 86 }; 87 88 #ifdef _KERNEL 89 extern struct cpu_info cpu_info_store; 90 91 #define curcpu() (&cpu_info_store) 92 #endif 93 94 /* 95 * definitions of cpu-dependent requirements 96 * referenced in generic code 97 */ 98 #define cpu_swapin(p) /* nothing */ 99 #define cpu_number() 0 100 101 /* 102 * Arguments to hardclock, softclock and statclock 103 * encapsulate the previous machine state in an opaque 104 * clockframe; for now, use generic intrframe. 105 * 106 * Note: Since spllowersoftclock() does not actually unmask the currently 107 * running (hardclock) interrupt, CLKF_BASEPRI() *must* always be 0; otherwise 108 * we could stall hardclock ticks if another interrupt takes too long. 109 */ 110 #define clockframe intrframe 111 112 #define CLKF_USERMODE(frame) USERMODE((frame)->if_cs, (frame)->if_eflags) 113 #define CLKF_BASEPRI(frame) (0) 114 #define CLKF_PC(frame) ((frame)->if_eip) 115 #define CLKF_INTR(frame) ((frame)->if_ppl & (1 << IPL_TAGINTR)) 116 117 /* 118 * This is used during profiling to integrate system time. It can safely 119 * assume that the process is resident. 120 */ 121 #define PROC_PC(p) ((p)->p_md.md_regs->tf_eip) 122 123 /* 124 * Preempt the current process if in interrupt from user mode, 125 * or after the current trap/syscall if in system mode. 126 */ 127 int want_resched; /* resched() was called */ 128 #define need_resched(ci) (want_resched = 1, setsoftast()) 129 130 /* 131 * Give a profiling tick to the current process when the user profiling 132 * buffer pages are invalid. On the i386, request an ast to send us 133 * through trap(), marking the proc as needing a profiling tick. 134 */ 135 #define need_proftick(p) ((p)->p_flag |= P_OWEUPC, setsoftast()) 136 137 /* 138 * Notify the current process (p) that it has a signal pending, 139 * process as soon as possible. 140 */ 141 #define signotify(p) setsoftast() 142 143 /* 144 * We need a machine-independent name for this. 145 */ 146 #define DELAY(x) delay(x) 147 148 /* 149 * pull in #defines for kinds of processors 150 */ 151 #include <machine/cputypes.h> 152 153 struct cpu_nocpuid_nameclass { 154 int cpu_vendor; 155 const char *cpu_vendorname; 156 const char *cpu_name; 157 int cpu_class; 158 void (*cpu_setup) __P((void)); 159 void (*cpu_cacheinfo) __P((struct cpu_info *)); 160 void (*cpu_info) __P((int)); 161 }; 162 163 164 struct cpu_cpuid_nameclass { 165 const char *cpu_id; 166 int cpu_vendor; 167 const char *cpu_vendorname; 168 struct cpu_cpuid_family { 169 int cpu_class; 170 const char *cpu_models[CPU_MAXMODEL+2]; 171 void (*cpu_setup) __P((void)); 172 void (*cpu_cacheinfo) __P((struct cpu_info *)); 173 void (*cpu_info) __P((int)); 174 } cpu_family[CPU_MAXFAMILY - CPU_MINFAMILY + 1]; 175 }; 176 177 #ifdef _KERNEL 178 extern int biosbasemem; 179 extern int biosextmem; 180 extern int cpu; 181 extern int cpu_class; 182 extern int cpu_feature; 183 extern int cpu_id; 184 extern char cpu_vendor[]; 185 extern int cpuid_level; 186 extern const struct cpu_nocpuid_nameclass i386_nocpuid_cpus[]; 187 extern const struct cpu_cpuid_nameclass i386_cpuid_cpus[]; 188 189 extern int i386_use_fxsave; 190 extern int i386_has_sse; 191 extern int i386_has_sse2; 192 193 /* machdep.c */ 194 void delay __P((int)); 195 void dumpconf __P((void)); 196 void cpu_reset __P((void)); 197 void i386_proc0_tss_ldt_init __P((void)); 198 void i386_bufinit __P((void)); 199 200 /* locore.s */ 201 struct region_descriptor; 202 void lgdt __P((struct region_descriptor *)); 203 void fillw __P((short, void *, size_t)); 204 205 struct pcb; 206 void savectx __P((struct pcb *)); 207 void switch_exit __P((struct proc *)); 208 void proc_trampoline __P((void)); 209 210 /* clock.c */ 211 void initrtclock __P((void)); 212 void startrtclock __P((void)); 213 214 /* npx.c */ 215 void npxdrop __P((void)); 216 void npxsave __P((void)); 217 218 /* vm_machdep.c */ 219 int kvtop __P((caddr_t)); 220 221 #if !defined(_LKM) 222 #include "opt_math_emulate.h" 223 #endif 224 #ifdef MATH_EMULATE 225 /* math_emulate.c */ 226 int math_emulate __P((struct trapframe *)); 227 #endif 228 229 #if !defined(_LKM) 230 #include "opt_user_ldt.h" 231 #endif 232 #ifdef USER_LDT 233 /* sys_machdep.h */ 234 int i386_get_ldt __P((struct proc *, void *, register_t *)); 235 int i386_set_ldt __P((struct proc *, void *, register_t *)); 236 #endif 237 238 /* isa_machdep.c */ 239 void isa_defaultirq __P((void)); 240 int isa_nmi __P((void)); 241 242 #if !defined(_LKM) 243 #include "opt_vm86.h" 244 #endif 245 #ifdef VM86 246 /* vm86.c */ 247 void vm86_gpfault __P((struct proc *, int)); 248 #endif /* VM86 */ 249 250 /* consinit.c */ 251 void kgdb_port_init __P((void)); 252 253 /* bus_machdep.c */ 254 void i386_bus_space_init __P((void)); 255 void i386_bus_space_mallocok __P((void)); 256 257 #endif /* _KERNEL */ 258 259 /* 260 * CTL_MACHDEP definitions. 261 */ 262 #define CPU_CONSDEV 1 /* dev_t: console terminal device */ 263 #define CPU_BIOSBASEMEM 2 /* int: bios-reported base mem (K) */ 264 #define CPU_BIOSEXTMEM 3 /* int: bios-reported ext. mem (K) */ 265 #define CPU_NKPDE 4 /* int: number of kernel PDEs */ 266 #define CPU_BOOTED_KERNEL 5 /* string: booted kernel name */ 267 #define CPU_DISKINFO 6 /* struct disklist *: 268 * disk geometry information */ 269 #define CPU_FPU_PRESENT 7 /* int: FPU is present */ 270 #define CPU_OSFXSR 8 /* int: OS uses FXSAVE/FXRSTOR */ 271 #define CPU_SSE 9 /* int: OS/CPU supports SSE */ 272 #define CPU_SSE2 10 /* int: OS/CPU supports SSE2 */ 273 #define CPU_TMLR_MODE 11 /* int: longrun mode 274 * 0: minimum frequency 275 * 1: economy 276 * 2: performance 277 * 3: maximum frequency 278 */ 279 #define CPU_TMLR_FREQUENCY 12 /* int: current frequency */ 280 #define CPU_TMLR_VOLTAGE 13 /* int: curret voltage */ 281 #define CPU_TMLR_PERCENTAGE 14 /* int: current clock percentage */ 282 #define CPU_MAXID 15 /* number of valid machdep ids */ 283 284 #define CTL_MACHDEP_NAMES { \ 285 { 0, 0 }, \ 286 { "console_device", CTLTYPE_STRUCT }, \ 287 { "biosbasemem", CTLTYPE_INT }, \ 288 { "biosextmem", CTLTYPE_INT }, \ 289 { "nkpde", CTLTYPE_INT }, \ 290 { "booted_kernel", CTLTYPE_STRING }, \ 291 { "diskinfo", CTLTYPE_STRUCT }, \ 292 { "fpu_present", CTLTYPE_INT }, \ 293 { "osfxsr", CTLTYPE_INT }, \ 294 { "sse", CTLTYPE_INT }, \ 295 { "sse2", CTLTYPE_INT }, \ 296 { "tm_longrun_mode", CTLTYPE_INT }, \ 297 { "tm_longrun_frequency", CTLTYPE_INT }, \ 298 { "tm_longrun_voltage", CTLTYPE_INT }, \ 299 { "tm_longrun_percentage", CTLTYPE_INT }, \ 300 } 301 302 303 /* 304 * Structure for CPU_DISKINFO sysctl call. 305 * XXX this should be somewhere else. 306 */ 307 #define MAX_BIOSDISKS 16 308 309 struct disklist { 310 int dl_nbiosdisks; /* number of bios disks */ 311 struct biosdisk_info { 312 int bi_dev; /* BIOS device # (0x80 ..) */ 313 int bi_cyl; /* cylinders on disk */ 314 int bi_head; /* heads per track */ 315 int bi_sec; /* sectors per track */ 316 u_int64_t bi_lbasecs; /* total sec. (iff ext13) */ 317 #define BIFLAG_INVALID 0x01 318 #define BIFLAG_EXTINT13 0x02 319 int bi_flags; 320 } dl_biosdisks[MAX_BIOSDISKS]; 321 322 int dl_nnativedisks; /* number of native disks */ 323 struct nativedisk_info { 324 char ni_devname[16]; /* native device name */ 325 int ni_nmatches; /* # of matches w/ BIOS */ 326 int ni_biosmatches[MAX_BIOSDISKS]; /* indices in dl_biosdisks */ 327 } dl_nativedisks[1]; /* actually longer */ 328 }; 329 330 #endif /* !_I386_CPU_H_ */ 331
Indexes created Wed Sep 24 14:09:57 GMT 2025