1 /* $NetBSD: cpu.h,v 1.76 2001/11/17 08:21:43 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 }; 86 87 #ifdef _KERNEL 88 extern struct cpu_info cpu_info_store; 89 90 #define curcpu() (&cpu_info_store) 91 #endif 92 93 /* 94 * definitions of cpu-dependent requirements 95 * referenced in generic code 96 */ 97 #define cpu_swapin(p) /* nothing */ 98 #define cpu_number() 0 99 100 /* 101 * Arguments to hardclock, softclock and statclock 102 * encapsulate the previous machine state in an opaque 103 * clockframe; for now, use generic intrframe. 104 * 105 * XXX intrframe has a lot of gunk we don't need. 106 */ 107 #define clockframe intrframe 108 109 #define CLKF_USERMODE(frame) USERMODE((frame)->if_cs, (frame)->if_eflags) 110 #define CLKF_BASEPRI(frame) ((frame)->if_ppl == 0) 111 #define CLKF_PC(frame) ((frame)->if_eip) 112 #define CLKF_INTR(frame) ((frame)->if_ppl & (1 << IPL_TAGINTR)) 113 114 /* 115 * This is used during profiling to integrate system time. It can safely 116 * assume that the process is resident. 117 */ 118 #define PROC_PC(p) ((p)->p_md.md_regs->tf_eip) 119 120 /* 121 * Preempt the current process if in interrupt from user mode, 122 * or after the current trap/syscall if in system mode. 123 */ 124 int want_resched; /* resched() was called */ 125 #define need_resched(ci) (want_resched = 1, setsoftast()) 126 127 /* 128 * Give a profiling tick to the current process when the user profiling 129 * buffer pages are invalid. On the i386, request an ast to send us 130 * through trap(), marking the proc as needing a profiling tick. 131 */ 132 #define need_proftick(p) ((p)->p_flag |= P_OWEUPC, setsoftast()) 133 134 /* 135 * Notify the current process (p) that it has a signal pending, 136 * process as soon as possible. 137 */ 138 #define signotify(p) setsoftast() 139 140 /* 141 * We need a machine-independent name for this. 142 */ 143 #define DELAY(x) delay(x) 144 145 /* 146 * pull in #defines for kinds of processors 147 */ 148 #include <machine/cputypes.h> 149 150 struct cpu_nocpuid_nameclass { 151 int cpu_vendor; 152 const char *cpu_vendorname; 153 const char *cpu_name; 154 int cpu_class; 155 void (*cpu_setup) __P((void)); 156 void (*cpu_cacheinfo) __P((struct cpu_info *)); 157 }; 158 159 160 struct cpu_cpuid_nameclass { 161 const char *cpu_id; 162 int cpu_vendor; 163 const char *cpu_vendorname; 164 struct cpu_cpuid_family { 165 int cpu_class; 166 const char *cpu_models[CPU_MAXMODEL+2]; 167 void (*cpu_setup) __P((void)); 168 void (*cpu_cacheinfo) __P((struct cpu_info *)); 169 } cpu_family[CPU_MAXFAMILY - CPU_MINFAMILY + 1]; 170 }; 171 172 #ifdef _KERNEL 173 extern int biosbasemem; 174 extern int biosextmem; 175 extern int cpu; 176 extern int cpu_class; 177 extern int cpu_feature; 178 extern int cpu_id; 179 extern char cpu_vendor[]; 180 extern int cpuid_level; 181 extern const struct cpu_nocpuid_nameclass i386_nocpuid_cpus[]; 182 extern const struct cpu_cpuid_nameclass i386_cpuid_cpus[]; 183 184 extern int i386_use_fxsave; 185 extern int i386_has_sse; 186 extern int i386_has_sse2; 187 188 /* machdep.c */ 189 void delay __P((int)); 190 void dumpconf __P((void)); 191 void cpu_reset __P((void)); 192 void i386_proc0_tss_ldt_init __P((void)); 193 void i386_bufinit __P((void)); 194 195 /* locore.s */ 196 struct region_descriptor; 197 void lgdt __P((struct region_descriptor *)); 198 void fillw __P((short, void *, size_t)); 199 200 struct pcb; 201 void savectx __P((struct pcb *)); 202 void switch_exit __P((struct proc *)); 203 void proc_trampoline __P((void)); 204 205 /* clock.c */ 206 void initrtclock __P((void)); 207 void startrtclock __P((void)); 208 209 /* npx.c */ 210 void npxdrop __P((void)); 211 void npxsave __P((void)); 212 213 /* vm_machdep.c */ 214 int kvtop __P((caddr_t)); 215 216 #if !defined(_LKM) 217 #include "opt_math_emulate.h" 218 #endif 219 #ifdef MATH_EMULATE 220 /* math_emulate.c */ 221 int math_emulate __P((struct trapframe *)); 222 #endif 223 224 #if !defined(_LKM) 225 #include "opt_user_ldt.h" 226 #endif 227 #ifdef USER_LDT 228 /* sys_machdep.h */ 229 int i386_get_ldt __P((struct proc *, void *, register_t *)); 230 int i386_set_ldt __P((struct proc *, void *, register_t *)); 231 #endif 232 233 /* isa_machdep.c */ 234 void isa_defaultirq __P((void)); 235 int isa_nmi __P((void)); 236 237 #if !defined(_LKM) 238 #include "opt_vm86.h" 239 #endif 240 #ifdef VM86 241 /* vm86.c */ 242 void vm86_gpfault __P((struct proc *, int)); 243 #endif /* VM86 */ 244 245 /* consinit.c */ 246 void kgdb_port_init __P((void)); 247 248 /* bus_machdep.c */ 249 void i386_bus_space_init __P((void)); 250 void i386_bus_space_mallocok __P((void)); 251 252 #endif /* _KERNEL */ 253 254 /* 255 * CTL_MACHDEP definitions. 256 */ 257 #define CPU_CONSDEV 1 /* dev_t: console terminal device */ 258 #define CPU_BIOSBASEMEM 2 /* int: bios-reported base mem (K) */ 259 #define CPU_BIOSEXTMEM 3 /* int: bios-reported ext. mem (K) */ 260 #define CPU_NKPDE 4 /* int: number of kernel PDEs */ 261 #define CPU_BOOTED_KERNEL 5 /* string: booted kernel name */ 262 #define CPU_DISKINFO 6 /* disk geometry information */ 263 #define CPU_FPU_PRESENT 7 /* FPU is present */ 264 #define CPU_OSFXSR 8 /* OS uses FXSAVE/FXRSTOR */ 265 #define CPU_SSE 9 /* OS/CPU supports SSE */ 266 #define CPU_SSE2 10 /* OS/CPU supports SSE2 */ 267 #define CPU_TMLR_MODE 11 268 #define CPU_TMLR_FREQUENCY 12 269 #define CPU_TMLR_VOLTAGE 13 270 #define CPU_TMLR_PERCENTAGE 14 271 #define CPU_MAXID 15 /* number of valid machdep ids */ 272 273 #define CTL_MACHDEP_NAMES { \ 274 { 0, 0 }, \ 275 { "console_device", CTLTYPE_STRUCT }, \ 276 { "biosbasemem", CTLTYPE_INT }, \ 277 { "biosextmem", CTLTYPE_INT }, \ 278 { "nkpde", CTLTYPE_INT }, \ 279 { "booted_kernel", CTLTYPE_STRING }, \ 280 { "diskinfo", CTLTYPE_STRUCT }, \ 281 { "fpu_present", CTLTYPE_INT }, \ 282 { "osfxsr", CTLTYPE_INT }, \ 283 { "sse", CTLTYPE_INT }, \ 284 { "sse2", CTLTYPE_INT }, \ 285 { "tm_longrun_mode", CTLTYPE_INT }, \ 286 { "tm_longrun_frequency", CTLTYPE_INT }, \ 287 { "tm_longrun_voltage", CTLTYPE_INT }, \ 288 { "tm_longrun_percentage", CTLTYPE_INT }, \ 289 } 290 291 292 /* 293 * Structure for CPU_DISKINFO sysctl call. 294 * XXX this should be somewhere else. 295 */ 296 #define MAX_BIOSDISKS 16 297 298 struct disklist { 299 int dl_nbiosdisks; /* number of bios disks */ 300 struct biosdisk_info { 301 int bi_dev; /* BIOS device # (0x80 ..) */ 302 int bi_cyl; /* cylinders on disk */ 303 int bi_head; /* heads per track */ 304 int bi_sec; /* sectors per track */ 305 u_int64_t bi_lbasecs; /* total sec. (iff ext13) */ 306 #define BIFLAG_INVALID 0x01 307 #define BIFLAG_EXTINT13 0x02 308 int bi_flags; 309 } dl_biosdisks[MAX_BIOSDISKS]; 310 311 int dl_nnativedisks; /* number of native disks */ 312 struct nativedisk_info { 313 char ni_devname[16]; /* native device name */ 314 int ni_nmatches; /* # of matches w/ BIOS */ 315 int ni_biosmatches[MAX_BIOSDISKS]; /* indices in dl_biosdisks */ 316 } dl_nativedisks[1]; /* actually longer */ 317 }; 318 319 #endif /* !_I386_CPU_H_ */ 320