1 /* $NetBSD: cpu.h,v 1.77 2001/12/27 15:24:34 christos 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 * XXX intrframe has a lot of gunk we don't need. 107 */ 108 #define clockframe intrframe 109 110 #define CLKF_USERMODE(frame) USERMODE((frame)->if_cs, (frame)->if_eflags) 111 #define CLKF_BASEPRI(frame) ((frame)->if_ppl == 0) 112 #define CLKF_PC(frame) ((frame)->if_eip) 113 #define CLKF_INTR(frame) ((frame)->if_ppl & (1 << IPL_TAGINTR)) 114 115 /* 116 * This is used during profiling to integrate system time. It can safely 117 * assume that the process is resident. 118 */ 119 #define PROC_PC(p) ((p)->p_md.md_regs->tf_eip) 120 121 /* 122 * Preempt the current process if in interrupt from user mode, 123 * or after the current trap/syscall if in system mode. 124 */ 125 int want_resched; /* resched() was called */ 126 #define need_resched(ci) (want_resched = 1, setsoftast()) 127 128 /* 129 * Give a profiling tick to the current process when the user profiling 130 * buffer pages are invalid. On the i386, request an ast to send us 131 * through trap(), marking the proc as needing a profiling tick. 132 */ 133 #define need_proftick(p) ((p)->p_flag |= P_OWEUPC, setsoftast()) 134 135 /* 136 * Notify the current process (p) that it has a signal pending, 137 * process as soon as possible. 138 */ 139 #define signotify(p) setsoftast() 140 141 /* 142 * We need a machine-independent name for this. 143 */ 144 #define DELAY(x) delay(x) 145 146 /* 147 * pull in #defines for kinds of processors 148 */ 149 #include <machine/cputypes.h> 150 151 struct cpu_nocpuid_nameclass { 152 int cpu_vendor; 153 const char *cpu_vendorname; 154 const char *cpu_name; 155 int cpu_class; 156 void (*cpu_setup) __P((void)); 157 void (*cpu_cacheinfo) __P((struct cpu_info *)); 158 void (*cpu_info) __P((int)); 159 }; 160 161 162 struct cpu_cpuid_nameclass { 163 const char *cpu_id; 164 int cpu_vendor; 165 const char *cpu_vendorname; 166 struct cpu_cpuid_family { 167 int cpu_class; 168 const char *cpu_models[CPU_MAXMODEL+2]; 169 void (*cpu_setup) __P((void)); 170 void (*cpu_cacheinfo) __P((struct cpu_info *)); 171 void (*cpu_info) __P((int)); 172 } cpu_family[CPU_MAXFAMILY - CPU_MINFAMILY + 1]; 173 }; 174 175 #ifdef _KERNEL 176 extern int biosbasemem; 177 extern int biosextmem; 178 extern int cpu; 179 extern int cpu_class; 180 extern int cpu_feature; 181 extern int cpu_id; 182 extern char cpu_vendor[]; 183 extern int cpuid_level; 184 extern const struct cpu_nocpuid_nameclass i386_nocpuid_cpus[]; 185 extern const struct cpu_cpuid_nameclass i386_cpuid_cpus[]; 186 187 extern int i386_use_fxsave; 188 extern int i386_has_sse; 189 extern int i386_has_sse2; 190 191 /* machdep.c */ 192 void delay __P((int)); 193 void dumpconf __P((void)); 194 void cpu_reset __P((void)); 195 void i386_proc0_tss_ldt_init __P((void)); 196 void i386_bufinit __P((void)); 197 198 /* locore.s */ 199 struct region_descriptor; 200 void lgdt __P((struct region_descriptor *)); 201 void fillw __P((short, void *, size_t)); 202 203 struct pcb; 204 void savectx __P((struct pcb *)); 205 void switch_exit __P((struct proc *)); 206 void proc_trampoline __P((void)); 207 208 /* clock.c */ 209 void initrtclock __P((void)); 210 void startrtclock __P((void)); 211 212 /* npx.c */ 213 void npxdrop __P((void)); 214 void npxsave __P((void)); 215 216 /* vm_machdep.c */ 217 int kvtop __P((caddr_t)); 218 219 #if !defined(_LKM) 220 #include "opt_math_emulate.h" 221 #endif 222 #ifdef MATH_EMULATE 223 /* math_emulate.c */ 224 int math_emulate __P((struct trapframe *)); 225 #endif 226 227 #if !defined(_LKM) 228 #include "opt_user_ldt.h" 229 #endif 230 #ifdef USER_LDT 231 /* sys_machdep.h */ 232 int i386_get_ldt __P((struct proc *, void *, register_t *)); 233 int i386_set_ldt __P((struct proc *, void *, register_t *)); 234 #endif 235 236 /* isa_machdep.c */ 237 void isa_defaultirq __P((void)); 238 int isa_nmi __P((void)); 239 240 #if !defined(_LKM) 241 #include "opt_vm86.h" 242 #endif 243 #ifdef VM86 244 /* vm86.c */ 245 void vm86_gpfault __P((struct proc *, int)); 246 #endif /* VM86 */ 247 248 /* consinit.c */ 249 void kgdb_port_init __P((void)); 250 251 /* bus_machdep.c */ 252 void i386_bus_space_init __P((void)); 253 void i386_bus_space_mallocok __P((void)); 254 255 #endif /* _KERNEL */ 256 257 /* 258 * CTL_MACHDEP definitions. 259 */ 260 #define CPU_CONSDEV 1 /* dev_t: console terminal device */ 261 #define CPU_BIOSBASEMEM 2 /* int: bios-reported base mem (K) */ 262 #define CPU_BIOSEXTMEM 3 /* int: bios-reported ext. mem (K) */ 263 #define CPU_NKPDE 4 /* int: number of kernel PDEs */ 264 #define CPU_BOOTED_KERNEL 5 /* string: booted kernel name */ 265 #define CPU_DISKINFO 6 /* disk geometry information */ 266 #define CPU_FPU_PRESENT 7 /* FPU is present */ 267 #define CPU_OSFXSR 8 /* OS uses FXSAVE/FXRSTOR */ 268 #define CPU_SSE 9 /* OS/CPU supports SSE */ 269 #define CPU_SSE2 10 /* OS/CPU supports SSE2 */ 270 #define CPU_TMLR_MODE 11 271 #define CPU_TMLR_FREQUENCY 12 272 #define CPU_TMLR_VOLTAGE 13 273 #define CPU_TMLR_PERCENTAGE 14 274 #define CPU_MAXID 15 /* number of valid machdep ids */ 275 276 #define CTL_MACHDEP_NAMES { \ 277 { 0, 0 }, \ 278 { "console_device", CTLTYPE_STRUCT }, \ 279 { "biosbasemem", CTLTYPE_INT }, \ 280 { "biosextmem", CTLTYPE_INT }, \ 281 { "nkpde", CTLTYPE_INT }, \ 282 { "booted_kernel", CTLTYPE_STRING }, \ 283 { "diskinfo", CTLTYPE_STRUCT }, \ 284 { "fpu_present", CTLTYPE_INT }, \ 285 { "osfxsr", CTLTYPE_INT }, \ 286 { "sse", CTLTYPE_INT }, \ 287 { "sse2", CTLTYPE_INT }, \ 288 { "tm_longrun_mode", CTLTYPE_INT }, \ 289 { "tm_longrun_frequency", CTLTYPE_INT }, \ 290 { "tm_longrun_voltage", CTLTYPE_INT }, \ 291 { "tm_longrun_percentage", CTLTYPE_INT }, \ 292 } 293 294 295 /* 296 * Structure for CPU_DISKINFO sysctl call. 297 * XXX this should be somewhere else. 298 */ 299 #define MAX_BIOSDISKS 16 300 301 struct disklist { 302 int dl_nbiosdisks; /* number of bios disks */ 303 struct biosdisk_info { 304 int bi_dev; /* BIOS device # (0x80 ..) */ 305 int bi_cyl; /* cylinders on disk */ 306 int bi_head; /* heads per track */ 307 int bi_sec; /* sectors per track */ 308 u_int64_t bi_lbasecs; /* total sec. (iff ext13) */ 309 #define BIFLAG_INVALID 0x01 310 #define BIFLAG_EXTINT13 0x02 311 int bi_flags; 312 } dl_biosdisks[MAX_BIOSDISKS]; 313 314 int dl_nnativedisks; /* number of native disks */ 315 struct nativedisk_info { 316 char ni_devname[16]; /* native device name */ 317 int ni_nmatches; /* # of matches w/ BIOS */ 318 int ni_biosmatches[MAX_BIOSDISKS]; /* indices in dl_biosdisks */ 319 } dl_nativedisks[1]; /* actually longer */ 320 }; 321 322 #endif /* !_I386_CPU_H_ */ 323