1 /* $OpenBSD: cpu.h,v 1.73 2012/04/17 16:02:33 guenther 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 76 struct proc *ci_fpcurproc; 77 struct proc *ci_fpsaveproc; 78 int ci_fpsaving; 79 80 struct pcb *ci_curpcb; 81 struct pcb *ci_idle_pcb; 82 83 struct intrsource *ci_isources[MAX_INTR_SOURCES]; 84 u_int64_t ci_ipending; 85 int ci_ilevel; 86 int ci_idepth; 87 u_int64_t ci_imask[NIPL]; 88 u_int64_t ci_iunmask[NIPL]; 89 #ifdef DIAGNOSTIC 90 int ci_mutex_level; 91 #endif 92 93 volatile u_int ci_flags; 94 u_int32_t ci_ipis; 95 96 u_int32_t ci_feature_flags; 97 u_int32_t ci_feature_eflags; 98 u_int32_t ci_signature; 99 u_int32_t ci_family; 100 u_int32_t ci_model; 101 u_int32_t ci_cflushsz; 102 u_int64_t ci_tsc_freq; 103 104 struct cpu_functions *ci_func; 105 void (*cpu_setup)(struct cpu_info *); 106 void (*ci_info)(struct cpu_info *); 107 108 int ci_want_resched; 109 110 struct x86_cache_info ci_cinfo[CAI_COUNT]; 111 112 struct x86_64_tss *ci_tss; 113 char *ci_gdt; 114 115 volatile int ci_ddb_paused; 116 #define CI_DDB_RUNNING 0 117 #define CI_DDB_SHOULDSTOP 1 118 #define CI_DDB_STOPPED 2 119 #define CI_DDB_ENTERDDB 3 120 #define CI_DDB_INDDB 4 121 122 volatile int ci_setperf_state; 123 #define CI_SETPERF_READY 0 124 #define CI_SETPERF_SHOULDSTOP 1 125 #define CI_SETPERF_INTRANSIT 2 126 #define CI_SETPERF_DONE 3 127 128 struct ksensordev ci_sensordev; 129 struct ksensor ci_sensor; 130 }; 131 132 #define CPUF_BSP 0x0001 /* CPU is the original BSP */ 133 #define CPUF_AP 0x0002 /* CPU is an AP */ 134 #define CPUF_SP 0x0004 /* CPU is only processor */ 135 #define CPUF_PRIMARY 0x0008 /* CPU is active primary processor */ 136 137 #define CPUF_IDENTIFY 0x0010 /* CPU may now identify */ 138 #define CPUF_IDENTIFIED 0x0020 /* CPU has been identified */ 139 140 #define CPUF_PRESENT 0x1000 /* CPU is present */ 141 #define CPUF_RUNNING 0x2000 /* CPU is running */ 142 #define CPUF_PAUSE 0x4000 /* CPU is paused in DDB */ 143 #define CPUF_GO 0x8000 /* CPU should start running */ 144 145 #define PROC_PC(p) ((p)->p_md.md_regs->tf_rip) 146 147 extern struct cpu_info cpu_info_primary; 148 extern struct cpu_info *cpu_info_list; 149 150 #define CPU_INFO_ITERATOR int 151 #define CPU_INFO_FOREACH(cii, ci) for (cii = 0, ci = cpu_info_list; \ 152 ci != NULL; ci = ci->ci_next) 153 154 #define CPU_INFO_UNIT(ci) ((ci)->ci_dev ? (ci)->ci_dev->dv_unit : 0) 155 156 /* 157 * Preempt the current process if in interrupt from user mode, 158 * or after the current trap/syscall if in system mode. 159 */ 160 extern void need_resched(struct cpu_info *); 161 #define clear_resched(ci) (ci)->ci_want_resched = 0 162 163 #if defined(MULTIPROCESSOR) 164 165 #define MAXCPUS 64 /* bitmask */ 166 167 #define CPU_STARTUP(_ci) ((_ci)->ci_func->start(_ci)) 168 #define CPU_STOP(_ci) ((_ci)->ci_func->stop(_ci)) 169 #define CPU_START_CLEANUP(_ci) ((_ci)->ci_func->cleanup(_ci)) 170 171 #define curcpu() ({struct cpu_info *__ci; \ 172 asm volatile("movq %%gs:8,%0" : "=r" (__ci)); \ 173 __ci;}) 174 #define cpu_number() (curcpu()->ci_cpuid) 175 176 #define CPU_IS_PRIMARY(ci) ((ci)->ci_flags & CPUF_PRIMARY) 177 178 extern struct cpu_info *cpu_info[MAXCPUS]; 179 180 void cpu_boot_secondary_processors(void); 181 void cpu_init_idle_pcbs(void); 182 183 void cpu_unidle(struct cpu_info *); 184 185 #else /* !MULTIPROCESSOR */ 186 187 #define MAXCPUS 1 188 189 #ifdef _KERNEL 190 extern struct cpu_info cpu_info_primary; 191 192 #define curcpu() (&cpu_info_primary) 193 194 #define cpu_unidle(ci) 195 196 #endif 197 198 /* 199 * definitions of cpu-dependent requirements 200 * referenced in generic code 201 */ 202 #define cpu_number() 0 203 #define CPU_IS_PRIMARY(ci) 1 204 205 #endif /* MULTIPROCESSOR */ 206 207 #endif /* _KERNEL */ 208 209 #include <machine/psl.h> 210 211 #ifdef MULTIPROCESSOR 212 #include <sys/mplock.h> 213 #endif 214 215 #define aston(p) ((p)->p_md.md_astpending = 1) 216 217 #define curpcb curcpu()->ci_curpcb 218 219 /* 220 * Arguments to hardclock, softclock and statclock 221 * encapsulate the previous machine state in an opaque 222 * clockframe; for now, use generic intrframe. 223 */ 224 #define clockframe intrframe 225 226 #define CLKF_USERMODE(frame) USERMODE((frame)->if_cs, (frame)->if_rflags) 227 #define CLKF_PC(frame) ((frame)->if_rip) 228 #define CLKF_INTR(frame) (curcpu()->ci_idepth > 1) 229 230 /* 231 * This is used during profiling to integrate system time. 232 */ 233 #define PROC_PC(p) ((p)->p_md.md_regs->tf_rip) 234 235 /* 236 * Give a profiling tick to the current process when the user profiling 237 * buffer pages are invalid. On the i386, request an ast to send us 238 * through trap(), marking the proc as needing a profiling tick. 239 */ 240 #define need_proftick(p) aston(p) 241 242 void signotify(struct proc *); 243 244 /* 245 * We need a machine-independent name for this. 246 */ 247 extern void (*delay_func)(int); 248 struct timeval; 249 250 #define DELAY(x) (*delay_func)(x) 251 #define delay(x) (*delay_func)(x) 252 253 254 #ifdef _KERNEL 255 extern int biosbasemem; 256 extern int biosextmem; 257 extern int cpu; 258 extern int cpu_feature; 259 extern int cpu_ecxfeature; 260 extern int ecpu_ecxfeature; 261 extern int cpu_id; 262 extern char cpu_vendor[]; 263 extern int cpuid_level; 264 extern int cpuspeed; 265 266 /* identcpu.c */ 267 void identifycpu(struct cpu_info *); 268 int cpu_amd64speed(int *); 269 270 /* machdep.c */ 271 void dumpconf(void); 272 void cpu_reset(void); 273 void x86_64_proc0_tss_ldt_init(void); 274 void x86_64_bufinit(void); 275 void x86_64_init_pcb_tss_ldt(struct cpu_info *); 276 void cpu_proc_fork(struct proc *, struct proc *); 277 int amd64_pa_used(paddr_t); 278 extern void (*cpu_idle_enter_fcn)(void); 279 extern void (*cpu_idle_cycle_fcn)(void); 280 extern void (*cpu_idle_leave_fcn)(void); 281 282 struct region_descriptor; 283 void lgdt(struct region_descriptor *); 284 285 struct pcb; 286 void savectx(struct pcb *); 287 void switch_exit(struct proc *, void (*)(struct proc *)); 288 void proc_trampoline(void); 289 void child_trampoline(void); 290 291 /* clock.c */ 292 extern void (*initclock_func)(void); 293 void startclocks(void); 294 void rtcstart(void); 295 void rtcstop(void); 296 void i8254_delay(int); 297 void i8254_initclocks(void); 298 void i8254_startclock(void); 299 void i8254_inittimecounter(void); 300 void i8254_inittimecounter_simple(void); 301 302 /* i8259.c */ 303 void i8259_default_setup(void); 304 305 306 void cpu_init_msrs(struct cpu_info *); 307 308 309 /* trap.c */ 310 void child_return(void *); 311 312 /* dkcsum.c */ 313 void dkcsumattach(void); 314 315 /* bus_machdep.c */ 316 void x86_bus_space_init(void); 317 void x86_bus_space_mallocok(void); 318 319 /* powernow-k8.c */ 320 void k8_powernow_init(struct cpu_info *); 321 void k8_powernow_setperf(int); 322 323 /* k1x-pstate.c */ 324 void k1x_init(struct cpu_info *); 325 void k1x_setperf(int); 326 327 void est_init(struct cpu_info *); 328 void est_setperf(int); 329 330 #ifdef MULTIPROCESSOR 331 /* mp_setperf.c */ 332 void mp_setperf_init(void); 333 #endif 334 335 #endif /* _KERNEL */ 336 337 /* 338 * CTL_MACHDEP definitions. 339 */ 340 #define CPU_CONSDEV 1 /* dev_t: console terminal device */ 341 #define CPU_BIOS 2 /* BIOS variables */ 342 #define CPU_BLK2CHR 3 /* convert blk maj into chr one */ 343 #define CPU_CHR2BLK 4 /* convert chr maj into blk one */ 344 #define CPU_ALLOWAPERTURE 5 /* allow mmap of /dev/xf86 */ 345 #define CPU_CPUVENDOR 6 /* cpuid vendor string */ 346 #define CPU_CPUID 7 /* cpuid */ 347 #define CPU_CPUFEATURE 8 /* cpuid features */ 348 #define CPU_APMWARN 9 /* APM battery warning percentage */ 349 #define CPU_KBDRESET 10 /* keyboard reset under pcvt */ 350 #define CPU_APMHALT 11 /* halt -p hack */ 351 #define CPU_XCRYPT 12 /* supports VIA xcrypt in userland */ 352 #define CPU_LIDSUSPEND 13 /* lid close causes a suspend */ 353 #define CPU_MAXID 14 /* number of valid machdep ids */ 354 355 #define CTL_MACHDEP_NAMES { \ 356 { 0, 0 }, \ 357 { "console_device", CTLTYPE_STRUCT }, \ 358 { "bios", CTLTYPE_INT }, \ 359 { "blk2chr", CTLTYPE_STRUCT }, \ 360 { "chr2blk", CTLTYPE_STRUCT }, \ 361 { "allowaperture", CTLTYPE_INT }, \ 362 { "cpuvendor", CTLTYPE_STRING }, \ 363 { "cpuid", CTLTYPE_INT }, \ 364 { "cpufeature", CTLTYPE_INT }, \ 365 { "apmwarn", CTLTYPE_INT }, \ 366 { "kbdreset", CTLTYPE_INT }, \ 367 { "apmhalt", CTLTYPE_INT }, \ 368 { "xcrypt", CTLTYPE_INT }, \ 369 { "lidsuspend", CTLTYPE_INT }, \ 370 } 371 372 /* 373 * Default cr4 flags. 374 * Doesn't really belong here, but doesn't really belong anywhere else 375 * either. Just to avoid painful mismatches of cr4 flags since they are 376 * set in three different places. 377 */ 378 #define CR4_DEFAULT (CR4_PAE|CR4_PGE|CR4_PSE|CR4_OSFXSR|CR4_OSXMMEXCPT) 379 380 #endif /* !_MACHINE_CPU_H_ */ 381