1 /* $OpenBSD: cpu.h,v 1.85 2014/07/11 10:53:07 uebayasi 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 #ifdef _KERNEL 45 #include <machine/frame.h> 46 #include <machine/segments.h> 47 #include <machine/cacheinfo.h> 48 #include <machine/intrdefs.h> 49 50 #ifdef MULTIPROCESSOR 51 #include <machine/i82489reg.h> 52 #include <machine/i82489var.h> 53 #endif 54 55 #endif /* _KERNEL */ 56 57 #include <sys/device.h> 58 #include <sys/lock.h> 59 #include <sys/sched.h> 60 #include <sys/sensors.h> 61 62 #ifdef _KERNEL 63 64 struct x86_64_tss; 65 struct cpu_info { 66 struct device *ci_dev; 67 struct cpu_info *ci_self; 68 struct schedstate_percpu ci_schedstate; /* scheduler state */ 69 struct cpu_info *ci_next; 70 71 struct proc *ci_curproc; 72 struct simplelock ci_slock; 73 u_int ci_cpuid; 74 u_int ci_apicid; 75 u_int32_t ci_randseed; 76 77 u_int64_t ci_scratch; 78 79 struct proc *ci_fpcurproc; 80 struct proc *ci_fpsaveproc; 81 int ci_fpsaving; 82 83 struct pcb *ci_curpcb; 84 struct pcb *ci_idle_pcb; 85 86 struct intrsource *ci_isources[MAX_INTR_SOURCES]; 87 u_int64_t ci_ipending; 88 int ci_ilevel; 89 int ci_idepth; 90 u_int64_t ci_imask[NIPL]; 91 u_int64_t ci_iunmask[NIPL]; 92 #ifdef DIAGNOSTIC 93 int ci_mutex_level; 94 #endif 95 96 volatile u_int ci_flags; 97 u_int32_t ci_ipis; 98 99 u_int32_t ci_feature_flags; 100 u_int32_t ci_feature_eflags; 101 u_int32_t ci_feature_sefflags; 102 u_int32_t ci_signature; 103 u_int32_t ci_family; 104 u_int32_t ci_model; 105 u_int32_t ci_cflushsz; 106 u_int64_t ci_tsc_freq; 107 108 int ci_inatomic; 109 110 #define ARCH_HAVE_CPU_TOPOLOGY 111 u_int32_t ci_smt_id; 112 u_int32_t ci_core_id; 113 u_int32_t ci_pkg_id; 114 115 struct cpu_functions *ci_func; 116 void (*cpu_setup)(struct cpu_info *); 117 void (*ci_info)(struct cpu_info *); 118 119 u_int *ci_mwait; 120 /* bits in ci_mwait[0] */ 121 #define MWAIT_IN_IDLE 0x1 /* don't need IPI to wake */ 122 #define MWAIT_KEEP_IDLING 0x2 /* cleared by other cpus to wake me */ 123 #define MWAIT_IDLING (MWAIT_IN_IDLE | MWAIT_KEEP_IDLING) 124 125 int ci_want_resched; 126 127 struct x86_cache_info ci_cinfo[CAI_COUNT]; 128 129 struct x86_64_tss *ci_tss; 130 char *ci_gdt; 131 132 volatile int ci_ddb_paused; 133 #define CI_DDB_RUNNING 0 134 #define CI_DDB_SHOULDSTOP 1 135 #define CI_DDB_STOPPED 2 136 #define CI_DDB_ENTERDDB 3 137 #define CI_DDB_INDDB 4 138 139 volatile int ci_setperf_state; 140 #define CI_SETPERF_READY 0 141 #define CI_SETPERF_SHOULDSTOP 1 142 #define CI_SETPERF_INTRANSIT 2 143 #define CI_SETPERF_DONE 3 144 145 struct ksensordev ci_sensordev; 146 struct ksensor ci_sensor; 147 #ifdef GPROF 148 struct gmonparam *ci_gmon; 149 #endif 150 }; 151 152 #define CPUF_BSP 0x0001 /* CPU is the original BSP */ 153 #define CPUF_AP 0x0002 /* CPU is an AP */ 154 #define CPUF_SP 0x0004 /* CPU is only processor */ 155 #define CPUF_PRIMARY 0x0008 /* CPU is active primary processor */ 156 157 #define CPUF_IDENTIFY 0x0010 /* CPU may now identify */ 158 #define CPUF_IDENTIFIED 0x0020 /* CPU has been identified */ 159 160 #define CPUF_CONST_TSC 0x0040 /* CPU has constant TSC */ 161 162 #define CPUF_PRESENT 0x1000 /* CPU is present */ 163 #define CPUF_RUNNING 0x2000 /* CPU is running */ 164 #define CPUF_PAUSE 0x4000 /* CPU is paused in DDB */ 165 #define CPUF_GO 0x8000 /* CPU should start running */ 166 #define CPUF_PARK 0x10000 /* CPU should self-park in real mode */ 167 168 #define PROC_PC(p) ((p)->p_md.md_regs->tf_rip) 169 #define PROC_STACK(p) ((p)->p_md.md_regs->tf_rsp) 170 171 extern struct cpu_info cpu_info_primary; 172 extern struct cpu_info *cpu_info_list; 173 174 #define CPU_INFO_ITERATOR int 175 #define CPU_INFO_FOREACH(cii, ci) for (cii = 0, ci = cpu_info_list; \ 176 ci != NULL; ci = ci->ci_next) 177 178 #define CPU_INFO_UNIT(ci) ((ci)->ci_dev ? (ci)->ci_dev->dv_unit : 0) 179 180 /* 181 * Preempt the current process if in interrupt from user mode, 182 * or after the current trap/syscall if in system mode. 183 */ 184 extern void need_resched(struct cpu_info *); 185 #define clear_resched(ci) (ci)->ci_want_resched = 0 186 187 #if defined(MULTIPROCESSOR) 188 189 #define MAXCPUS 64 /* bitmask */ 190 191 #define CPU_STARTUP(_ci) ((_ci)->ci_func->start(_ci)) 192 #define CPU_STOP(_ci) ((_ci)->ci_func->stop(_ci)) 193 #define CPU_START_CLEANUP(_ci) ((_ci)->ci_func->cleanup(_ci)) 194 195 #define curcpu() ({struct cpu_info *__ci; \ 196 asm volatile("movq %%gs:8,%0" : "=r" (__ci)); \ 197 __ci;}) 198 #define cpu_number() (curcpu()->ci_cpuid) 199 200 #define CPU_IS_PRIMARY(ci) ((ci)->ci_flags & CPUF_PRIMARY) 201 202 extern struct cpu_info *cpu_info[MAXCPUS]; 203 204 void cpu_boot_secondary_processors(void); 205 void cpu_init_idle_pcbs(void); 206 207 void cpu_kick(struct cpu_info *); 208 void cpu_unidle(struct cpu_info *); 209 210 #define CPU_BUSY_CYCLE() __asm volatile("pause": : : "memory") 211 212 #else /* !MULTIPROCESSOR */ 213 214 #define MAXCPUS 1 215 216 #ifdef _KERNEL 217 extern struct cpu_info cpu_info_primary; 218 219 #define curcpu() (&cpu_info_primary) 220 221 #define cpu_kick(ci) 222 #define cpu_unidle(ci) 223 224 #define CPU_BUSY_CYCLE() do {} while (0) 225 226 #endif 227 228 /* 229 * definitions of cpu-dependent requirements 230 * referenced in generic code 231 */ 232 #define cpu_number() 0 233 #define CPU_IS_PRIMARY(ci) 1 234 235 #endif /* MULTIPROCESSOR */ 236 237 #include <machine/psl.h> 238 239 #endif /* _KERNEL */ 240 241 #ifdef MULTIPROCESSOR 242 #include <sys/mplock.h> 243 #endif 244 245 #define aston(p) ((p)->p_md.md_astpending = 1) 246 247 #define curpcb curcpu()->ci_curpcb 248 249 /* 250 * Arguments to hardclock, softclock and statclock 251 * encapsulate the previous machine state in an opaque 252 * clockframe; for now, use generic intrframe. 253 */ 254 #define clockframe intrframe 255 256 #define CLKF_USERMODE(frame) USERMODE((frame)->if_cs, (frame)->if_rflags) 257 #define CLKF_PC(frame) ((frame)->if_rip) 258 #define CLKF_INTR(frame) (curcpu()->ci_idepth > 1) 259 260 /* 261 * This is used during profiling to integrate system time. 262 */ 263 #define PROC_PC(p) ((p)->p_md.md_regs->tf_rip) 264 265 /* 266 * Give a profiling tick to the current process when the user profiling 267 * buffer pages are invalid. On the i386, request an ast to send us 268 * through trap(), marking the proc as needing a profiling tick. 269 */ 270 #define need_proftick(p) aston(p) 271 272 void signotify(struct proc *); 273 274 /* 275 * We need a machine-independent name for this. 276 */ 277 extern void (*delay_func)(int); 278 struct timeval; 279 280 #define DELAY(x) (*delay_func)(x) 281 #define delay(x) (*delay_func)(x) 282 283 284 #ifdef _KERNEL 285 extern int biosbasemem; 286 extern int biosextmem; 287 extern int cpu; 288 extern int cpu_feature; 289 extern int cpu_ecxfeature; 290 extern int cpu_perf_eax; 291 extern int cpu_perf_ebx; 292 extern int cpu_perf_edx; 293 extern int cpu_apmi_edx; 294 extern int ecpu_ecxfeature; 295 extern int cpu_id; 296 extern char cpu_vendor[]; 297 extern int cpuid_level; 298 extern int cpuspeed; 299 300 /* identcpu.c */ 301 void identifycpu(struct cpu_info *); 302 int cpu_amd64speed(int *); 303 304 /* machdep.c */ 305 void dumpconf(void); 306 void cpu_reset(void); 307 void x86_64_proc0_tss_ldt_init(void); 308 void x86_64_bufinit(void); 309 void x86_64_init_pcb_tss_ldt(struct cpu_info *); 310 void cpu_proc_fork(struct proc *, struct proc *); 311 int amd64_pa_used(paddr_t); 312 extern void (*cpu_idle_enter_fcn)(void); 313 extern void (*cpu_idle_cycle_fcn)(void); 314 extern void (*cpu_idle_leave_fcn)(void); 315 316 struct region_descriptor; 317 void lgdt(struct region_descriptor *); 318 319 struct pcb; 320 void savectx(struct pcb *); 321 void switch_exit(struct proc *, void (*)(struct proc *)); 322 void proc_trampoline(void); 323 void child_trampoline(void); 324 325 /* clock.c */ 326 extern void (*initclock_func)(void); 327 void startclocks(void); 328 void rtcstart(void); 329 void rtcstop(void); 330 void i8254_delay(int); 331 void i8254_initclocks(void); 332 void i8254_startclock(void); 333 void i8254_inittimecounter(void); 334 void i8254_inittimecounter_simple(void); 335 336 /* i8259.c */ 337 void i8259_default_setup(void); 338 339 340 void cpu_init_msrs(struct cpu_info *); 341 342 343 /* trap.c */ 344 void child_return(void *); 345 346 /* dkcsum.c */ 347 void dkcsumattach(void); 348 349 /* bus_machdep.c */ 350 void x86_bus_space_init(void); 351 void x86_bus_space_mallocok(void); 352 353 /* powernow-k8.c */ 354 void k8_powernow_init(struct cpu_info *); 355 void k8_powernow_setperf(int); 356 357 /* k1x-pstate.c */ 358 void k1x_init(struct cpu_info *); 359 void k1x_setperf(int); 360 361 void est_init(struct cpu_info *); 362 void est_setperf(int); 363 364 #ifdef MULTIPROCESSOR 365 /* mp_setperf.c */ 366 void mp_setperf_init(void); 367 #endif 368 369 #endif /* _KERNEL */ 370 371 /* 372 * CTL_MACHDEP definitions. 373 */ 374 #define CPU_CONSDEV 1 /* dev_t: console terminal device */ 375 #define CPU_BIOS 2 /* BIOS variables */ 376 #define CPU_BLK2CHR 3 /* convert blk maj into chr one */ 377 #define CPU_CHR2BLK 4 /* convert chr maj into blk one */ 378 #define CPU_ALLOWAPERTURE 5 /* allow mmap of /dev/xf86 */ 379 #define CPU_CPUVENDOR 6 /* cpuid vendor string */ 380 #define CPU_CPUID 7 /* cpuid */ 381 #define CPU_CPUFEATURE 8 /* cpuid features */ 382 #define CPU_APMWARN 9 /* APM battery warning percentage */ 383 #define CPU_KBDRESET 10 /* keyboard reset under pcvt */ 384 #define CPU_APMHALT 11 /* halt -p hack */ 385 #define CPU_XCRYPT 12 /* supports VIA xcrypt in userland */ 386 #define CPU_LIDSUSPEND 13 /* lid close causes a suspend */ 387 #define CPU_MAXID 14 /* number of valid machdep ids */ 388 389 #define CTL_MACHDEP_NAMES { \ 390 { 0, 0 }, \ 391 { "console_device", CTLTYPE_STRUCT }, \ 392 { "bios", CTLTYPE_INT }, \ 393 { "blk2chr", CTLTYPE_STRUCT }, \ 394 { "chr2blk", CTLTYPE_STRUCT }, \ 395 { "allowaperture", CTLTYPE_INT }, \ 396 { "cpuvendor", CTLTYPE_STRING }, \ 397 { "cpuid", CTLTYPE_INT }, \ 398 { "cpufeature", CTLTYPE_INT }, \ 399 { "apmwarn", CTLTYPE_INT }, \ 400 { "kbdreset", CTLTYPE_INT }, \ 401 { "apmhalt", CTLTYPE_INT }, \ 402 { "xcrypt", CTLTYPE_INT }, \ 403 { "lidsuspend", CTLTYPE_INT }, \ 404 } 405 406 /* 407 * Default cr4 flags. 408 * Doesn't really belong here, but doesn't really belong anywhere else 409 * either. Just to avoid painful mismatches of cr4 flags since they are 410 * set in three different places. 411 */ 412 #define CR4_DEFAULT (CR4_PAE|CR4_PGE|CR4_PSE|CR4_OSFXSR|CR4_OSXMMEXCPT) 413 414 #endif /* !_MACHINE_CPU_H_ */ 415