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Annotation of src/sys/arch/amd64/include/cpu.h, Revision 1.11

1.11    ! kardel      1: /*     $NetBSD: cpu.h,v 1.10 2006/03/06 08:30:44 cube Exp $    */
1.1       fvdl        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.
1.2       agc        18:  * 3. Neither the name of the University nor the names of its contributors
1.1       fvdl       19:  *    may be used to endorse or promote products derived from this software
                     20:  *    without specific prior written permission.
                     21:  *
                     22:  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
                     23:  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
                     24:  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
                     25:  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
                     26:  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
                     27:  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
                     28:  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
                     29:  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
                     30:  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
                     31:  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
                     32:  * SUCH DAMAGE.
                     33:  *
                     34:  *     @(#)cpu.h       5.4 (Berkeley) 5/9/91
                     35:  */
                     36:
                     37: #ifndef _AMD64_CPU_H_
                     38: #define _AMD64_CPU_H_
                     39:
1.6       yamt       40: #if defined(_KERNEL)
1.1       fvdl       41: #if defined(_KERNEL_OPT)
                     42: #include "opt_multiprocessor.h"
                     43: #include "opt_lockdebug.h"
                     44: #endif
                     45:
                     46: /*
                     47:  * Definitions unique to x86-64 cpu support.
                     48:  */
                     49: #include <machine/frame.h>
                     50: #include <machine/segments.h>
                     51: #include <machine/tss.h>
                     52: #include <machine/intrdefs.h>
                     53: #include <x86/cacheinfo.h>
                     54:
                     55: #include <sys/device.h>
                     56: #include <sys/lock.h>
1.4       yamt       57: #include <sys/cpu_data.h>
                     58: #include <sys/cc_microtime.h>
1.1       fvdl       59:
                     60: struct cpu_info {
                     61:        struct device *ci_dev;
                     62:        struct cpu_info *ci_self;
1.4       yamt       63:        struct cpu_data ci_data;        /* MI per-cpu data */
1.5       yamt       64:        struct cc_microtime_state ci_cc;/* cc_microtime state */
1.1       fvdl       65:        struct cpu_info *ci_next;
                     66:
                     67:        struct lwp *ci_curlwp;
                     68:        struct simplelock ci_slock;
                     69:        u_int ci_cpuid;
                     70:        u_int ci_apicid;
                     71:
                     72:        u_int64_t ci_scratch;
                     73:
                     74:        struct lwp *ci_fpcurlwp;
                     75:        int ci_fpsaving;
                     76:
                     77:        volatile u_int32_t ci_tlb_ipi_mask;
                     78:
                     79:        struct pcb *ci_curpcb;
                     80:        struct pcb *ci_idle_pcb;
                     81:        int ci_idle_tss_sel;
                     82:
                     83:        struct intrsource *ci_isources[MAX_INTR_SOURCES];
                     84:        u_int32_t       ci_ipending;
                     85:        int             ci_ilevel;
                     86:        int             ci_idepth;
                     87:        u_int32_t       ci_imask[NIPL];
                     88:        u_int32_t       ci_iunmask[NIPL];
                     89:
                     90:        paddr_t         ci_idle_pcb_paddr;
                     91:        u_int           ci_flags;
                     92:        u_int32_t       ci_ipis;
                     93:
                     94:        u_int32_t       ci_feature_flags;
                     95:        u_int32_t       ci_signature;
                     96:        u_int64_t       ci_tsc_freq;
                     97:
                     98:        struct cpu_functions *ci_func;
                     99:        void (*cpu_setup) __P((struct cpu_info *));
                    100:        void (*ci_info) __P((struct cpu_info *));
                    101:
                    102:        int             ci_want_resched;
                    103:        int             ci_astpending;
                    104:        struct trapframe *ci_ddb_regs;
                    105:
                    106:        struct x86_cache_info ci_cinfo[CAI_COUNT];
                    107:
                    108:        char            *ci_gdt;
                    109:
                    110:        struct x86_64_tss       ci_doubleflt_tss;
                    111:        struct x86_64_tss       ci_ddbipi_tss;
                    112:
                    113:        char *ci_doubleflt_stack;
                    114:        char *ci_ddbipi_stack;
                    115:
                    116:        struct evcnt ci_ipi_events[X86_NIPI];
                    117: };
                    118:
                    119: #define CPUF_BSP       0x0001          /* CPU is the original BSP */
                    120: #define CPUF_AP                0x0002          /* CPU is an AP */
                    121: #define CPUF_SP                0x0004          /* CPU is only processor */
                    122: #define CPUF_PRIMARY   0x0008          /* CPU is active primary processor */
                    123:
                    124: #define CPUF_PRESENT   0x1000          /* CPU is present */
                    125: #define CPUF_RUNNING   0x2000          /* CPU is running */
                    126: #define CPUF_PAUSE     0x4000          /* CPU is paused in DDB */
                    127: #define CPUF_GO                0x8000          /* CPU should start running */
                    128:
                    129:
                    130: extern struct cpu_info cpu_info_primary;
                    131: extern struct cpu_info *cpu_info_list;
                    132:
                    133: #define CPU_INFO_ITERATOR              int
                    134: #define CPU_INFO_FOREACH(cii, ci)      cii = 0, ci = cpu_info_list; \
                    135:                                        ci != NULL; ci = ci->ci_next
                    136:
                    137: #if defined(MULTIPROCESSOR)
                    138:
                    139: #define X86_MAXPROCS           32      /* bitmask; can be bumped to 64 */
                    140:
                    141: #define CPU_STARTUP(_ci)       ((_ci)->ci_func->start(_ci))
                    142: #define CPU_STOP(_ci)          ((_ci)->ci_func->stop(_ci))
                    143: #define CPU_START_CLEANUP(_ci) ((_ci)->ci_func->cleanup(_ci))
                    144:
                    145: #define curcpu()       ({struct cpu_info *__ci;                  \
1.9       perry     146:                        __asm volatile("movq %%gs:8,%0" : "=r" (__ci)); \
1.1       fvdl      147:                        __ci;})
                    148: #define cpu_number()   (curcpu()->ci_cpuid)
                    149:
                    150: #define CPU_IS_PRIMARY(ci)     ((ci)->ci_flags & CPUF_PRIMARY)
                    151:
                    152: extern struct cpu_info *cpu_info[X86_MAXPROCS];
                    153:
                    154: void cpu_boot_secondary_processors __P((void));
                    155: void cpu_init_idle_pcbs __P((void));
                    156:
                    157:
                    158: /*
                    159:  * Preempt the current process if in interrupt from user mode,
                    160:  * or after the current trap/syscall if in system mode.
                    161:  */
                    162: extern void need_resched __P((struct cpu_info *));
                    163:
                    164: #else /* !MULTIPROCESSOR */
                    165:
                    166: #define X86_MAXPROCS           1
                    167:
                    168: extern struct cpu_info cpu_info_primary;
                    169:
                    170: #define curcpu()               (&cpu_info_primary)
                    171:
                    172: /*
                    173:  * definitions of cpu-dependent requirements
                    174:  * referenced in generic code
                    175:  */
                    176: #define        cpu_number()            0
                    177: #define CPU_IS_PRIMARY(ci)     1
                    178:
                    179: /*
                    180:  * Preempt the current process if in interrupt from user mode,
                    181:  * or after the current trap/syscall if in system mode.
                    182:  */
                    183:
                    184: #define need_resched(ci)                                               \
                    185: do {                                                                   \
                    186:        struct cpu_info *__ci = (ci);                                   \
                    187:        __ci->ci_want_resched = 1;                                      \
                    188:        if (__ci->ci_curlwp != NULL)                                    \
                    189:                aston(__ci->ci_curlwp->l_proc);                         \
                    190: } while (/*CONSTCOND*/0)
                    191:
                    192: #endif
                    193:
                    194: #define aston(p)       ((p)->p_md.md_astpending = 1)
                    195:
                    196: extern u_int32_t cpus_attached;
                    197:
                    198: #define curpcb         curcpu()->ci_curpcb
                    199: #define curlwp         curcpu()->ci_curlwp
                    200:
                    201: /*
                    202:  * Arguments to hardclock, softclock and statclock
                    203:  * encapsulate the previous machine state in an opaque
                    204:  * clockframe; for now, use generic intrframe.
                    205:  */
1.7       cube      206: struct clockframe {
                    207:        struct intrframe cf_if;
                    208: };
1.1       fvdl      209:
1.7       cube      210: #define        CLKF_USERMODE(frame)    USERMODE((frame)->cf_if.if_cs, (frame)->cf_if.if_rflags)
1.1       fvdl      211: #define CLKF_BASEPRI(frame)    (0)
1.7       cube      212: #define CLKF_PC(frame)         ((frame)->cf_if.if_rip)
1.1       fvdl      213: #define CLKF_INTR(frame)       (curcpu()->ci_idepth > 1)
                    214:
                    215: /*
                    216:  * This is used during profiling to integrate system time.  It can safely
                    217:  * assume that the process is resident.
                    218:  */
                    219: #define LWP_PC(l)              ((l)->l_md.md_regs->tf_rip)
                    220:
                    221: /*
                    222:  * Give a profiling tick to the current process when the user profiling
                    223:  * buffer pages are invalid.  On the i386, request an ast to send us
                    224:  * through trap(), marking the proc as needing a profiling tick.
                    225:  */
                    226: #define        need_proftick(p)        ((p)->p_flag |= P_OWEUPC, aston(p))
                    227:
                    228: /*
                    229:  * Notify the current process (p) that it has a signal pending,
                    230:  * process as soon as possible.
                    231:  */
                    232: #define        signotify(p)            aston(p)
                    233:
                    234: /*
                    235:  * We need a machine-independent name for this.
                    236:  */
                    237: extern void (*delay_func) __P((int));
                    238:
                    239: #define DELAY(x)               (*delay_func)(x)
                    240: #define delay(x)               (*delay_func)(x)
                    241:
                    242:
                    243: /*
                    244:  * pull in #defines for kinds of processors
                    245:  */
                    246:
                    247: extern int biosbasemem;
                    248: extern int biosextmem;
                    249: extern int cpu;
                    250: extern int cpu_feature;
                    251: extern int cpu_id;
                    252: extern char cpu_vendor[];
                    253: extern int cpuid_level;
                    254:
                    255: /* identcpu.c */
                    256:
                    257: void   identifycpu __P((struct cpu_info *));
                    258: void cpu_probe_features __P((struct cpu_info *));
                    259:
                    260: /* machdep.c */
                    261: void   dumpconf __P((void));
                    262: int    cpu_maxproc __P((void));
                    263: void   cpu_reset __P((void));
                    264: void   x86_64_proc0_tss_ldt_init __P((void));
                    265: void   x86_64_init_pcb_tss_ldt __P((struct cpu_info *));
                    266: void   cpu_proc_fork __P((struct proc *, struct proc *));
                    267:
                    268: struct region_descriptor;
                    269: void   lgdt __P((struct region_descriptor *));
                    270: void   fillw __P((short, void *, size_t));
                    271:
                    272: struct pcb;
                    273: void   savectx __P((struct pcb *));
                    274: void   switch_exit __P((struct lwp *, void (*)(struct lwp *)));
                    275: void   proc_trampoline __P((void));
                    276: void   child_trampoline __P((void));
                    277:
                    278: /* clock.c */
1.11    ! kardel    279: void   initrtclock __P((u_long));
1.1       fvdl      280: void   startrtclock __P((void));
                    281: void   i8254_delay __P((int));
                    282: void   i8254_microtime __P((struct timeval *));
                    283: void   i8254_initclocks __P((void));
                    284:
                    285: void cpu_init_msrs __P((struct cpu_info *));
                    286:
                    287:
                    288: /* vm_machdep.c */
                    289: int kvtop __P((caddr_t));
                    290:
                    291: /* trap.c */
                    292: void   child_return __P((void *));
                    293:
                    294: /* consinit.c */
                    295: void kgdb_port_init __P((void));
                    296:
                    297: /* bus_machdep.c */
                    298: void x86_bus_space_init __P((void));
                    299: void x86_bus_space_mallocok __P((void));
                    300:
                    301: #endif /* _KERNEL */
                    302:
                    303: #include <machine/psl.h>
                    304:
                    305: /*
                    306:  * CTL_MACHDEP definitions.
                    307:  */
                    308: #define        CPU_CONSDEV             1       /* dev_t: console terminal device */
                    309: #define        CPU_BIOSBASEMEM         2       /* int: bios-reported base mem (K) */
                    310: #define        CPU_BIOSEXTMEM          3       /* int: bios-reported ext. mem (K) */
                    311: #define        CPU_NKPDE               4       /* int: number of kernel PDEs */
                    312: #define        CPU_BOOTED_KERNEL       5       /* string: booted kernel name */
                    313: #define CPU_DISKINFO           6       /* disk geometry information */
                    314: #define CPU_FPU_PRESENT                7       /* FPU is present */
                    315: #define        CPU_MAXID               8       /* number of valid machdep ids */
                    316:
                    317: #define        CTL_MACHDEP_NAMES { \
                    318:        { 0, 0 }, \
                    319:        { "console_device", CTLTYPE_STRUCT }, \
                    320:        { "biosbasemem", CTLTYPE_INT }, \
                    321:        { "biosextmem", CTLTYPE_INT }, \
                    322:        { "nkpde", CTLTYPE_INT }, \
                    323:        { "booted_kernel", CTLTYPE_STRING }, \
                    324:        { "diskinfo", CTLTYPE_STRUCT }, \
                    325:        { "fpu_present", CTLTYPE_INT }, \
                    326: }
                    327:
                    328:
                    329: /*
                    330:  * Structure for CPU_DISKINFO sysctl call.
                    331:  * XXX this should be somewhere else.
                    332:  */
                    333: #define MAX_BIOSDISKS  16
                    334:
                    335: struct disklist {
                    336:        int dl_nbiosdisks;                         /* number of bios disks */
                    337:        struct biosdisk_info {
                    338:                int bi_dev;                        /* BIOS device # (0x80 ..) */
                    339:                int bi_cyl;                        /* cylinders on disk */
                    340:                int bi_head;                       /* heads per track */
                    341:                int bi_sec;                        /* sectors per track */
                    342:                u_int64_t bi_lbasecs;              /* total sec. (iff ext13) */
                    343: #define BIFLAG_INVALID         0x01
                    344: #define BIFLAG_EXTINT13                0x02
                    345:                int bi_flags;
                    346:        } dl_biosdisks[MAX_BIOSDISKS];
                    347:
                    348:        int dl_nnativedisks;                       /* number of native disks */
                    349:        struct nativedisk_info {
                    350:                char ni_devname[16];               /* native device name */
                    351:                int ni_nmatches;                   /* # of matches w/ BIOS */
                    352:                int ni_biosmatches[MAX_BIOSDISKS]; /* indices in dl_biosdisks */
                    353:        } dl_nativedisks[1];                       /* actually longer */
                    354: };
                    355:
                    356: #endif /* !_AMD64_CPU_H_ */

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