1 /* $OpenBSD: cpu.h,v 1.68 2011/06/16 19:46:40 kettenis Exp $ */ 2 /* $NetBSD: cpu.h,v 1.1 2003/04/26 18:39:39 fvdl Exp $ */ 3 4 /*- 5 * Copyright (c) 1990 The Regents of the University of California. 6 * All rights reserved. 7 * 8 * This code is derived from software contributed to Berkeley by 9 * William Jolitz. 10 * 11 * Redistribution and use in source and binary forms, with or without 12 * modification, are permitted provided that the following conditions 13 * are met: 14 * 1. Redistributions of source code must retain the above copyright 15 * notice, this list of conditions and the following disclaimer. 16 * 2. Redistributions in binary form must reproduce the above copyright 17 * notice, this list of conditions and the following disclaimer in the 18 * documentation and/or other materials provided with the distribution. 19 * 3. Neither the name of the University nor the names of its contributors 20 * may be used to endorse or promote products derived from this software 21 * without specific prior written permission. 22 * 23 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 24 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 25 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 26 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 27 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 28 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 29 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 30 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 31 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 32 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 33 * SUCH DAMAGE. 34 * 35 * @(#)cpu.h 5.4 (Berkeley) 5/9/91 36 */ 37 38 #ifndef _MACHINE_CPU_H_ 39 #define _MACHINE_CPU_H_ 40 41 /* 42 * Definitions unique to x86-64 cpu support. 43 */ 44 #include <machine/frame.h> 45 #include <machine/segments.h> 46 #include <machine/intrdefs.h> 47 #include <machine/cacheinfo.h> 48 49 #ifdef MULTIPROCESSOR 50 #include <machine/i82489reg.h> 51 #include <machine/i82489var.h> 52 #endif 53 54 #include <sys/device.h> 55 #include <sys/lock.h> 56 #include <sys/sched.h> 57 #include <sys/sensors.h> 58 59 #ifdef _KERNEL 60 61 struct x86_64_tss; 62 struct cpu_info { 63 struct device *ci_dev; 64 struct cpu_info *ci_self; 65 struct schedstate_percpu ci_schedstate; /* scheduler state */ 66 struct cpu_info *ci_next; 67 68 struct proc *ci_curproc; 69 struct simplelock ci_slock; 70 u_int ci_cpuid; 71 u_int ci_apicid; 72 u_int32_t ci_randseed; 73 74 u_int64_t ci_scratch; 75 u_int64_t ci_cur_fsbase; 76 77 struct proc *ci_fpcurproc; 78 struct proc *ci_fpsaveproc; 79 int ci_fpsaving; 80 81 struct pcb *ci_curpcb; 82 struct pcb *ci_idle_pcb; 83 84 struct intrsource *ci_isources[MAX_INTR_SOURCES]; 85 u_int64_t ci_ipending; 86 int ci_ilevel; 87 int ci_idepth; 88 u_int64_t ci_imask[NIPL]; 89 u_int64_t ci_iunmask[NIPL]; 90 #ifdef DIAGNOSTIC 91 int ci_mutex_level; 92 #endif 93 94 volatile u_int ci_flags; 95 u_int32_t ci_ipis; 96 97 u_int32_t ci_feature_flags; 98 u_int32_t ci_feature_eflags; 99 u_int32_t ci_signature; 100 u_int32_t ci_family; 101 u_int32_t ci_model; 102 u_int32_t ci_cflushsz; 103 u_int64_t ci_tsc_freq; 104 105 struct cpu_functions *ci_func; 106 void (*cpu_setup)(struct cpu_info *); 107 void (*ci_info)(struct cpu_info *); 108 109 int ci_want_resched; 110 111 struct x86_cache_info ci_cinfo[CAI_COUNT]; 112 113 struct x86_64_tss *ci_tss; 114 char *ci_gdt; 115 116 volatile int ci_ddb_paused; 117 #define CI_DDB_RUNNING 0 118 #define CI_DDB_SHOULDSTOP 1 119 #define CI_DDB_STOPPED 2 120 #define CI_DDB_ENTERDDB 3 121 #define CI_DDB_INDDB 4 122 123 volatile int ci_setperf_state; 124 #define CI_SETPERF_READY 0 125 #define CI_SETPERF_SHOULDSTOP 1 126 #define CI_SETPERF_INTRANSIT 2 127 #define CI_SETPERF_DONE 3 128 129 struct ksensordev ci_sensordev; 130 struct ksensor ci_sensor; 131 }; 132 133 #define CPUF_BSP 0x0001 /* CPU is the original BSP */ 134 #define CPUF_AP 0x0002 /* CPU is an AP */ 135 #define CPUF_SP 0x0004 /* CPU is only processor */ 136 #define CPUF_PRIMARY 0x0008 /* CPU is active primary processor */ 137 138 #define CPUF_PRESENT 0x1000 /* CPU is present */ 139 #define CPUF_RUNNING 0x2000 /* CPU is running */ 140 #define CPUF_PAUSE 0x4000 /* CPU is paused in DDB */ 141 #define CPUF_GO 0x8000 /* CPU should start running */ 142 143 #define PROC_PC(p) ((p)->p_md.md_regs->tf_rip) 144 145 extern struct cpu_info cpu_info_primary; 146 extern struct cpu_info *cpu_info_list; 147 148 #define CPU_INFO_ITERATOR int 149 #define CPU_INFO_FOREACH(cii, ci) for (cii = 0, ci = cpu_info_list; \ 150 ci != NULL; ci = ci->ci_next) 151 152 #define CPU_INFO_UNIT(ci) ((ci)->ci_dev ? (ci)->ci_dev->dv_unit : 0) 153 154 /* 155 * Preempt the current process if in interrupt from user mode, 156 * or after the current trap/syscall if in system mode. 157 */ 158 extern void need_resched(struct cpu_info *); 159 #define clear_resched(ci) (ci)->ci_want_resched = 0 160 161 #if defined(MULTIPROCESSOR) 162 163 #define MAXCPUS 64 /* bitmask; can be bumped to 64 */ 164 165 #define CPU_STARTUP(_ci) ((_ci)->ci_func->start(_ci)) 166 #define CPU_STOP(_ci) ((_ci)->ci_func->stop(_ci)) 167 #define CPU_START_CLEANUP(_ci) ((_ci)->ci_func->cleanup(_ci)) 168 169 #define curcpu() ({struct cpu_info *__ci; \ 170 asm volatile("movq %%gs:8,%0" : "=r" (__ci)); \ 171 __ci;}) 172 #define cpu_number() (curcpu()->ci_cpuid) 173 174 #define CPU_IS_PRIMARY(ci) ((ci)->ci_flags & CPUF_PRIMARY) 175 176 extern struct cpu_info *cpu_info[MAXCPUS]; 177 178 void cpu_boot_secondary_processors(void); 179 void cpu_init_idle_pcbs(void); 180 181 void cpu_unidle(struct cpu_info *); 182 183 #else /* !MULTIPROCESSOR */ 184 185 #define MAXCPUS 1 186 187 #ifdef _KERNEL 188 extern struct cpu_info cpu_info_primary; 189 190 #define curcpu() (&cpu_info_primary) 191 192 #define cpu_unidle(ci) 193 194 #endif 195 196 /* 197 * definitions of cpu-dependent requirements 198 * referenced in generic code 199 */ 200 #define cpu_number() 0 201 #define CPU_IS_PRIMARY(ci) 1 202 203 #endif /* MULTIPROCESSOR */ 204 205 #endif /* _KERNEL */ 206 207 #include <machine/psl.h> 208 209 #ifdef MULTIPROCESSOR 210 #include <sys/mplock.h> 211 #endif 212 213 #define aston(p) ((p)->p_md.md_astpending = 1) 214 215 #define curpcb curcpu()->ci_curpcb 216 217 /* 218 * Arguments to hardclock, softclock and statclock 219 * encapsulate the previous machine state in an opaque 220 * clockframe; for now, use generic intrframe. 221 */ 222 #define clockframe intrframe 223 224 #define CLKF_USERMODE(frame) USERMODE((frame)->if_cs, (frame)->if_rflags) 225 #define CLKF_PC(frame) ((frame)->if_rip) 226 #define CLKF_INTR(frame) (curcpu()->ci_idepth > 1) 227 228 /* 229 * This is used during profiling to integrate system time. 230 */ 231 #define PROC_PC(p) ((p)->p_md.md_regs->tf_rip) 232 233 /* 234 * Give a profiling tick to the current process when the user profiling 235 * buffer pages are invalid. On the i386, request an ast to send us 236 * through trap(), marking the proc as needing a profiling tick. 237 */ 238 #define need_proftick(p) aston(p) 239 240 void signotify(struct proc *); 241 242 /* 243 * We need a machine-independent name for this. 244 */ 245 extern void (*delay_func)(int); 246 struct timeval; 247 248 #define DELAY(x) (*delay_func)(x) 249 #define delay(x) (*delay_func)(x) 250 251 252 #ifdef _KERNEL 253 extern int biosbasemem; 254 extern int biosextmem; 255 extern int cpu; 256 extern int cpu_feature; 257 extern int cpu_ecxfeature; 258 extern int cpu_id; 259 extern char cpu_vendor[]; 260 extern int cpuid_level; 261 extern int cpuspeed; 262 263 /* identcpu.c */ 264 void identifycpu(struct cpu_info *); 265 int cpu_amd64speed(int *); 266 void cpu_probe_features(struct cpu_info *); 267 268 /* machdep.c */ 269 void dumpconf(void); 270 void cpu_reset(void); 271 void x86_64_proc0_tss_ldt_init(void); 272 void x86_64_bufinit(void); 273 void x86_64_init_pcb_tss_ldt(struct cpu_info *); 274 void cpu_proc_fork(struct proc *, struct proc *); 275 int amd64_pa_used(paddr_t); 276 extern void (*cpu_idle_enter_fcn)(void); 277 extern void (*cpu_idle_cycle_fcn)(void); 278 extern void (*cpu_idle_leave_fcn)(void); 279 280 struct region_descriptor; 281 void lgdt(struct region_descriptor *); 282 283 struct pcb; 284 void savectx(struct pcb *); 285 void switch_exit(struct proc *, void (*)(struct proc *)); 286 void proc_trampoline(void); 287 void child_trampoline(void); 288 289 /* clock.c */ 290 extern void (*initclock_func)(void); 291 void startclocks(void); 292 void rtcstart(void); 293 void rtcstop(void); 294 void i8254_delay(int); 295 void i8254_initclocks(void); 296 void i8254_startclock(void); 297 void i8254_inittimecounter(void); 298 void i8254_inittimecounter_simple(void); 299 300 /* i8259.c */ 301 void i8259_default_setup(void); 302 303 304 void cpu_init_msrs(struct cpu_info *); 305 306 307 /* trap.c */ 308 void child_return(void *); 309 310 /* dkcsum.c */ 311 void dkcsumattach(void); 312 313 /* bus_machdep.c */ 314 void x86_bus_space_init(void); 315 void x86_bus_space_mallocok(void); 316 317 /* powernow-k8.c */ 318 void k8_powernow_init(struct cpu_info *); 319 void k8_powernow_setperf(int); 320 321 /* k1x-pstate.c */ 322 void k1x_init(struct cpu_info *); 323 void k1x_setperf(int); 324 325 void est_init(struct cpu_info *); 326 void est_setperf(int); 327 328 #ifdef MULTIPROCESSOR 329 /* mp_setperf.c */ 330 void mp_setperf_init(void); 331 #endif 332 333 #endif /* _KERNEL */ 334 335 /* 336 * CTL_MACHDEP definitions. 337 */ 338 #define CPU_CONSDEV 1 /* dev_t: console terminal device */ 339 #define CPU_BIOS 2 /* BIOS variables */ 340 #define CPU_BLK2CHR 3 /* convert blk maj into chr one */ 341 #define CPU_CHR2BLK 4 /* convert chr maj into blk one */ 342 #define CPU_ALLOWAPERTURE 5 /* allow mmap of /dev/xf86 */ 343 #define CPU_CPUVENDOR 6 /* cpuid vendor string */ 344 #define CPU_CPUID 7 /* cpuid */ 345 #define CPU_CPUFEATURE 8 /* cpuid features */ 346 #define CPU_APMWARN 9 /* APM battery warning percentage */ 347 #define CPU_KBDRESET 10 /* keyboard reset under pcvt */ 348 #define CPU_APMHALT 11 /* halt -p hack */ 349 #define CPU_XCRYPT 12 /* supports VIA xcrypt in userland */ 350 #define CPU_LIDSUSPEND 13 /* lid close causes a suspend */ 351 #define CPU_MAXID 14 /* number of valid machdep ids */ 352 353 #define CTL_MACHDEP_NAMES { \ 354 { 0, 0 }, \ 355 { "console_device", CTLTYPE_STRUCT }, \ 356 { "bios", CTLTYPE_INT }, \ 357 { "blk2chr", CTLTYPE_STRUCT }, \ 358 { "chr2blk", CTLTYPE_STRUCT }, \ 359 { "allowaperture", CTLTYPE_INT }, \ 360 { "cpuvendor", CTLTYPE_STRING }, \ 361 { "cpuid", CTLTYPE_INT }, \ 362 { "cpufeature", CTLTYPE_INT }, \ 363 { "apmwarn", CTLTYPE_INT }, \ 364 { "kbdreset", CTLTYPE_INT }, \ 365 { "apmhalt", CTLTYPE_INT }, \ 366 { "xcrypt", CTLTYPE_INT }, \ 367 { "lidsuspend", CTLTYPE_INT }, \ 368 } 369 370 /* 371 * Default cr4 flags. 372 * Doesn't really belong here, but doesn't really belong anywhere else 373 * either. Just to avoid painful mismatches of cr4 flags since they are 374 * set in three different places. 375 */ 376 #define CR4_DEFAULT (CR4_PAE|CR4_PGE|CR4_PSE|CR4_OSFXSR|CR4_OSXMMEXCPT) 377 378 #endif /* !_MACHINE_CPU_H_ */ 379