Annotation of sys/arch/amd64/include/cpu.h, Revision 1.1
1.1 ! nbrk 1: /* $OpenBSD: cpu.h,v 1.31 2007/05/29 18:53:52 deraadt 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 _AMD64_CPU_H_
! 39: #define _AMD64_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/tss.h>
! 47: #include <machine/intrdefs.h>
! 48: #include <machine/cacheinfo.h>
! 49:
! 50: #ifdef MULTIPROCESSOR
! 51: #include <machine/i82489reg.h>
! 52: #include <machine/i82489var.h>
! 53: #endif
! 54:
! 55: #include <sys/device.h>
! 56: #include <sys/lock.h>
! 57: #include <sys/sched.h>
! 58: #include <sys/sensors.h>
! 59:
! 60: #ifdef _KERNEL
! 61:
! 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_long ci_spin_locks;
! 73: u_long ci_simple_locks;
! 74:
! 75: u_int64_t ci_scratch;
! 76:
! 77: struct proc *ci_fpcurproc;
! 78: int ci_fpsaving;
! 79:
! 80: volatile u_int32_t ci_tlb_ipi_mask;
! 81:
! 82: struct pcb *ci_curpcb;
! 83: struct pcb *ci_idle_pcb;
! 84: int ci_idle_tss_sel;
! 85:
! 86: struct intrsource *ci_isources[MAX_INTR_SOURCES];
! 87: u_int32_t ci_ipending;
! 88: int ci_ilevel;
! 89: int ci_idepth;
! 90: u_int32_t ci_imask[NIPL];
! 91: u_int32_t ci_iunmask[NIPL];
! 92:
! 93: paddr_t ci_idle_pcb_paddr;
! 94: 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_int64_t ci_tsc_freq;
! 101:
! 102: struct cpu_functions *ci_func;
! 103: void (*cpu_setup)(struct cpu_info *);
! 104: void (*ci_info)(struct cpu_info *);
! 105:
! 106: int ci_want_resched;
! 107:
! 108: struct x86_cache_info ci_cinfo[CAI_COUNT];
! 109:
! 110: struct timeval ci_cc_time;
! 111: int64_t ci_cc_cc;
! 112: int64_t ci_cc_ms_delta;
! 113: int64_t ci_cc_denom;
! 114:
! 115: char *ci_gdt;
! 116:
! 117: volatile int ci_ddb_paused;
! 118: #define CI_DDB_RUNNING 0
! 119: #define CI_DDB_SHOULDSTOP 1
! 120: #define CI_DDB_STOPPED 2
! 121: #define CI_DDB_ENTERDDB 3
! 122: #define CI_DDB_INDDB 4
! 123:
! 124: volatile int ci_setperf_state;
! 125: #define CI_SETPERF_READY 0
! 126: #define CI_SETPERF_SHOULDSTOP 1
! 127: #define CI_SETPERF_INTRANSIT 2
! 128: #define CI_SETPERF_DONE 3
! 129:
! 130: struct x86_64_tss ci_doubleflt_tss;
! 131:
! 132: char *ci_doubleflt_stack;
! 133:
! 134: struct ksensordev ci_sensordev;
! 135: struct ksensor ci_sensor;
! 136: };
! 137:
! 138: #define CPUF_BSP 0x0001 /* CPU is the original BSP */
! 139: #define CPUF_AP 0x0002 /* CPU is an AP */
! 140: #define CPUF_SP 0x0004 /* CPU is only processor */
! 141: #define CPUF_PRIMARY 0x0008 /* CPU is active primary processor */
! 142:
! 143: #define CPUF_PRESENT 0x1000 /* CPU is present */
! 144: #define CPUF_RUNNING 0x2000 /* CPU is running */
! 145: #define CPUF_PAUSE 0x4000 /* CPU is paused in DDB */
! 146: #define CPUF_GO 0x8000 /* CPU should start running */
! 147:
! 148: #define PROC_PC(p) ((p)->p_md.md_regs->tf_rip)
! 149:
! 150: extern struct cpu_info cpu_info_primary;
! 151: extern struct cpu_info *cpu_info_list;
! 152:
! 153: #define CPU_INFO_ITERATOR int
! 154: #define CPU_INFO_FOREACH(cii, ci) for (cii = 0, ci = cpu_info_list; \
! 155: ci != NULL; ci = ci->ci_next)
! 156:
! 157: #define CPU_INFO_UNIT(ci) ((ci)->ci_dev->dv_unit)
! 158:
! 159: /*
! 160: * Preempt the current process if in interrupt from user mode,
! 161: * or after the current trap/syscall if in system mode.
! 162: */
! 163: extern void need_resched(struct cpu_info *);
! 164:
! 165: #if defined(MULTIPROCESSOR)
! 166:
! 167: #define X86_MAXPROCS 32 /* bitmask; can be bumped to 64 */
! 168:
! 169: #define CPU_STARTUP(_ci) ((_ci)->ci_func->start(_ci))
! 170: #define CPU_STOP(_ci) ((_ci)->ci_func->stop(_ci))
! 171: #define CPU_START_CLEANUP(_ci) ((_ci)->ci_func->cleanup(_ci))
! 172:
! 173: #define curcpu() ({struct cpu_info *__ci; \
! 174: asm volatile("movq %%gs:8,%0" : "=r" (__ci)); \
! 175: __ci;})
! 176: #define cpu_number() (curcpu()->ci_cpuid)
! 177:
! 178: #define CPU_IS_PRIMARY(ci) ((ci)->ci_flags & CPUF_PRIMARY)
! 179:
! 180: extern struct cpu_info *cpu_info[X86_MAXPROCS];
! 181:
! 182: void cpu_boot_secondary_processors(void);
! 183: void cpu_init_idle_pcbs(void);
! 184:
! 185: #else /* !MULTIPROCESSOR */
! 186:
! 187: #define X86_MAXPROCS 1
! 188:
! 189: #ifdef _KERNEL
! 190: extern struct cpu_info cpu_info_primary;
! 191:
! 192: #define curcpu() (&cpu_info_primary)
! 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: extern u_int32_t cpus_attached;
! 216:
! 217: #define curpcb curcpu()->ci_curpcb
! 218: #define curproc curcpu()->ci_curproc
! 219:
! 220: /*
! 221: * Arguments to hardclock, softclock and statclock
! 222: * encapsulate the previous machine state in an opaque
! 223: * clockframe; for now, use generic intrframe.
! 224: */
! 225: #define clockframe intrframe
! 226:
! 227: #define CLKF_USERMODE(frame) USERMODE((frame)->if_cs, (frame)->if_rflags)
! 228: #define CLKF_PC(frame) ((frame)->if_rip)
! 229: #define CLKF_INTR(frame) (curcpu()->ci_idepth > 1)
! 230:
! 231: /*
! 232: * This is used during profiling to integrate system time.
! 233: */
! 234: #define PROC_PC(p) ((p)->p_md.md_regs->tf_rip)
! 235:
! 236: /*
! 237: * Give a profiling tick to the current process when the user profiling
! 238: * buffer pages are invalid. On the i386, request an ast to send us
! 239: * through trap(), marking the proc as needing a profiling tick.
! 240: */
! 241: #define need_proftick(p) aston(p)
! 242:
! 243: void signotify(struct proc *);
! 244:
! 245: /*
! 246: * We need a machine-independent name for this.
! 247: */
! 248: extern void (*delay_func)(int);
! 249: struct timeval;
! 250:
! 251: #define DELAY(x) (*delay_func)(x)
! 252: #define delay(x) (*delay_func)(x)
! 253:
! 254:
! 255: #ifdef _KERNEL
! 256: extern int biosbasemem;
! 257: extern int biosextmem;
! 258: extern int cpu;
! 259: extern int cpu_feature;
! 260: extern int cpu_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: void cpu_probe_features(struct cpu_info *);
! 270:
! 271: /* machdep.c */
! 272: void dumpconf(void);
! 273: int cpu_maxproc(void);
! 274: void cpu_reset(void);
! 275: void x86_64_proc0_tss_ldt_init(void);
! 276: void x86_64_bufinit(void);
! 277: void x86_64_init_pcb_tss_ldt(struct cpu_info *);
! 278: void cpu_proc_fork(struct proc *, struct proc *);
! 279:
! 280: struct region_descriptor;
! 281: void lgdt(struct region_descriptor *);
! 282: void fillw(short, void *, size_t);
! 283:
! 284: struct pcb;
! 285: void savectx(struct pcb *);
! 286: void switch_exit(struct proc *, void (*)(struct proc *));
! 287: void proc_trampoline(void);
! 288: void child_trampoline(void);
! 289:
! 290: /* clock.c */
! 291: void initrtclock(void);
! 292: void startrtclock(void);
! 293: void i8254_delay(int);
! 294: void i8254_initclocks(void);
! 295: void i8254_inittimecounter(void);
! 296: void i8254_inittimecounter_simple(void);
! 297:
! 298:
! 299: void cpu_init_msrs(struct cpu_info *);
! 300:
! 301:
! 302: /* trap.c */
! 303: void child_return(void *);
! 304:
! 305: /* dkcsum.c */
! 306: void dkcsumattach(void);
! 307:
! 308: /* consinit.c */
! 309: void kgdb_port_init(void);
! 310:
! 311: /* bus_machdep.c */
! 312: void x86_bus_space_init(void);
! 313: void x86_bus_space_mallocok(void);
! 314:
! 315: /* powernow-k8.c */
! 316: void k8_powernow_init(struct cpu_info *);
! 317: void k8_powernow_setperf(int);
! 318:
! 319: void est_init(struct cpu_info *);
! 320: void est_setperf(int);
! 321:
! 322: #ifdef MULTIPROCESSOR
! 323: /* mp_setperf.c */
! 324: void mp_setperf_init(void);
! 325: #endif
! 326:
! 327: #endif /* _KERNEL */
! 328:
! 329: /*
! 330: * CTL_MACHDEP definitions.
! 331: */
! 332: #define CPU_CONSDEV 1 /* dev_t: console terminal device */
! 333: #define CPU_BIOS 2 /* BIOS variables */
! 334: #define CPU_BLK2CHR 3 /* convert blk maj into chr one */
! 335: #define CPU_CHR2BLK 4 /* convert chr maj into blk one */
! 336: #define CPU_ALLOWAPERTURE 5 /* allow mmap of /dev/xf86 */
! 337: #define CPU_CPUVENDOR 6 /* cpuid vendor string */
! 338: #define CPU_CPUID 7 /* cpuid */
! 339: #define CPU_CPUFEATURE 8 /* cpuid features */
! 340: #define CPU_APMWARN 9 /* APM battery warning percentage */
! 341: #define CPU_KBDRESET 10 /* keyboard reset under pcvt */
! 342: #define CPU_APMHALT 11 /* halt -p hack */
! 343: #define CPU_USERLDT 12
! 344: #define CPU_MAXID 13 /* number of valid machdep ids */
! 345:
! 346: #define CTL_MACHDEP_NAMES { \
! 347: { 0, 0 }, \
! 348: { "console_device", CTLTYPE_STRUCT }, \
! 349: { "bios", CTLTYPE_INT }, \
! 350: { "blk2chr", CTLTYPE_STRUCT }, \
! 351: { "chr2blk", CTLTYPE_STRUCT }, \
! 352: { "allowaperture", CTLTYPE_INT }, \
! 353: { "cpuvendor", CTLTYPE_STRING }, \
! 354: { "cpuid", CTLTYPE_INT }, \
! 355: { "cpufeature", CTLTYPE_INT }, \
! 356: { "apmwarn", CTLTYPE_INT }, \
! 357: { "kbdreset", CTLTYPE_INT }, \
! 358: { "apmhalt", CTLTYPE_INT }, \
! 359: { "userldt", CTLTYPE_INT }, \
! 360: }
! 361:
! 362: /*
! 363: * Default cr4 flags.
! 364: * Doesn't really belong here, but doesn't really belong anywhere else
! 365: * either. Just to avoid painful mismatches of cr4 flags since they are
! 366: * set in three different places.
! 367: */
! 368: #define CR4_DEFAULT (CR4_PAE|CR4_PGE|CR4_PSE|CR4_OSFXSR|CR4_OSXMMEXCPT)
! 369:
! 370: #endif /* !_AMD64_CPU_H_ */
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