/* $OpenBSD: cpu.h,v 1.95 2007/06/07 11:20:58 dim Exp $ */
/* $NetBSD: cpu.h,v 1.35 1996/05/05 19:29:26 christos Exp $ */
/*-
* Copyright (c) 1990 The Regents of the University of California.
* All rights reserved.
*
* This code is derived from software contributed to Berkeley by
* William Jolitz.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. Neither the name of the University nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* @(#)cpu.h 5.4 (Berkeley) 5/9/91
*/
#ifndef _I386_CPU_H_
#define _I386_CPU_H_
/*
* Definitions unique to i386 cpu support.
*/
#include <machine/frame.h>
#include <machine/psl.h>
#include <machine/segments.h>
#include <machine/intrdefs.h>
#ifdef MULTIPROCESSOR
#include <machine/i82489reg.h>
#include <machine/i82489var.h>
/* XXX for now... */
#define NLAPIC 1
#endif
/*
* Arguments to hardclock, softclock and statclock
* encapsulate the previous machine state in an opaque
* clockframe; for now, use generic intrframe.
*
* XXX intrframe has a lot of gunk we don't need.
*/
#define clockframe intrframe
#include <sys/device.h>
#include <sys/lock.h> /* will also get LOCKDEBUG */
#include <sys/sched.h>
#include <sys/sensors.h>
struct intrsource;
#ifdef _KERNEL
/* XXX stuff to move to cpuvar.h later */
struct cpu_info {
struct device ci_dev; /* our device */
struct cpu_info *ci_self; /* pointer to this structure */
struct schedstate_percpu ci_schedstate; /* scheduler state */
struct cpu_info *ci_next; /* next cpu */
/*
* Public members.
*/
struct proc *ci_curproc; /* current owner of the processor */
struct simplelock ci_slock; /* lock on this data structure */
cpuid_t ci_cpuid; /* our CPU ID */
u_int ci_apicid; /* our APIC ID */
#if defined(DIAGNOSTIC) || defined(LOCKDEBUG)
u_long ci_spin_locks; /* # of spin locks held */
u_long ci_simple_locks; /* # of simple locks held */
#endif
/*
* Private members.
*/
struct proc *ci_fpcurproc; /* current owner of the FPU */
int ci_fpsaving; /* save in progress */
volatile u_int32_t ci_tlb_ipi_mask;
struct pcb *ci_curpcb; /* VA of current HW PCB */
struct pcb *ci_idle_pcb; /* VA of current PCB */
int ci_idle_tss_sel; /* TSS selector of idle PCB */
struct intrsource *ci_isources[MAX_INTR_SOURCES];
u_int32_t ci_ipending;
int ci_ilevel;
int ci_idepth;
u_int32_t ci_imask[NIPL];
u_int32_t ci_iunmask[NIPL];
paddr_t ci_idle_pcb_paddr; /* PA of idle PCB */
u_long ci_flags; /* flags; see below */
u_int32_t ci_ipis; /* interprocessor interrupts pending */
int sc_apic_version;/* local APIC version */
u_int64_t ci_tscbase;
u_int32_t ci_level;
u_int32_t ci_vendor[4];
u_int32_t ci_signature; /* X86 cpuid type */
u_int32_t ci_feature_flags; /* X86 CPUID feature bits */
u_int32_t cpu_class; /* CPU class */
struct cpu_functions *ci_func; /* start/stop functions */
void (*cpu_setup)(struct cpu_info *); /* proc-dependant init */
int ci_want_resched;
union descriptor *ci_gdt;
union descriptor *ci_ldt; /* per-cpu default LDT */
int ci_ldt_len; /* in bytes */
volatile int ci_ddb_paused; /* paused due to other proc in ddb */
#define CI_DDB_RUNNING 0
#define CI_DDB_SHOULDSTOP 1
#define CI_DDB_STOPPED 2
#define CI_DDB_ENTERDDB 3
#define CI_DDB_INDDB 4
volatile int ci_setperf_state;
#define CI_SETPERF_READY 0
#define CI_SETPERF_SHOULDSTOP 1
#define CI_SETPERF_INTRANSIT 2
#define CI_SETPERF_DONE 3
struct ksensordev ci_sensordev;
struct ksensor ci_sensor;
};
/*
* Processor flag notes: The "primary" CPU has certain MI-defined
* roles (mostly relating to hardclock handling); we distinguish
* betwen the processor which booted us, and the processor currently
* holding the "primary" role just to give us the flexibility later to
* change primaries should we be sufficiently twisted.
*/
#define CPUF_BSP 0x0001 /* CPU is the original BSP */
#define CPUF_AP 0x0002 /* CPU is an AP */
#define CPUF_SP 0x0004 /* CPU is only processor */
#define CPUF_PRIMARY 0x0008 /* CPU is active primary processor */
#define CPUF_APIC_CD 0x0010 /* CPU has apic configured */
#define CPUF_PRESENT 0x1000 /* CPU is present */
#define CPUF_RUNNING 0x2000 /* CPU is running */
/*
* We statically allocate the CPU info for the primary CPU (or,
* the only CPU on uniprocessors), and the primary CPU is the
* first CPU on the CPU info list.
*/
extern struct cpu_info cpu_info_primary;
extern struct cpu_info *cpu_info_list;
#define CPU_INFO_ITERATOR int
#define CPU_INFO_FOREACH(cii, ci) for (cii = 0, ci = cpu_info_list; \
ci != NULL; ci = ci->ci_next)
#define CPU_INFO_UNIT(ci) ((ci)->ci_dev.dv_unit)
#ifdef MULTIPROCESSOR
#define I386_MAXPROCS 32 /* because we use a bitmask */
#define CPU_STARTUP(_ci) ((_ci)->ci_func->start(_ci))
#define CPU_STOP(_ci) ((_ci)->ci_func->stop(_ci))
#define CPU_START_CLEANUP(_ci) ((_ci)->ci_func->cleanup(_ci))
static struct cpu_info *curcpu(void);
__inline static struct cpu_info *
curcpu(void)
{
struct cpu_info *ci;
/* Can't include sys/param.h for offsetof() since it includes us */
__asm __volatile("movl %%fs:%1, %0" :
"=r" (ci) : "m"
(*(struct cpu_info * const *)&((struct cpu_info *)0)->ci_self));
return ci;
}
#define cpu_number() (curcpu()->ci_cpuid)
#define CPU_IS_PRIMARY(ci) ((ci)->ci_flags & CPUF_PRIMARY)
extern struct cpu_info *cpu_info[I386_MAXPROCS];
extern u_long cpus_running;
extern void cpu_boot_secondary_processors(void);
extern void cpu_init_idle_pcbs(void);
#else /* MULTIPROCESSOR */
#define I386_MAXPROCS 1
#define cpu_number() 0
#define curcpu() (&cpu_info_primary)
#define CPU_IS_PRIMARY(ci) 1
#endif
#define curpcb curcpu()->ci_curpcb
#define want_resched (curcpu()->ci_want_resched)
/*
* Preempt the current process if in interrupt from user mode,
* or after the current trap/syscall if in system mode.
*/
extern void need_resched(struct cpu_info *);
#define CLKF_USERMODE(frame) USERMODE((frame)->if_cs, (frame)->if_eflags)
#define CLKF_PC(frame) ((frame)->if_eip)
#define CLKF_INTR(frame) (IDXSEL((frame)->if_cs) == GICODE_SEL)
/*
* This is used during profiling to integrate system time.
*/
#define PROC_PC(p) ((p)->p_md.md_regs->tf_eip)
void aston(struct proc *);
/*
* Give a profiling tick to the current process when the user profiling
* buffer pages are invalid. On the i386, request an ast to send us
* through trap(), marking the proc as needing a profiling tick.
*/
#define need_proftick(p) aston(p)
/*
* Notify the current process (p) that it has a signal pending,
* process as soon as possible.
*/
#define signotify(p) aston(p)
/*
* We need a machine-independent name for this.
*/
extern void (*delay_func)(int);
struct timeval;
#define DELAY(x) (*delay_func)(x)
#define delay(x) (*delay_func)(x)
#if defined(I586_CPU) || defined(I686_CPU)
/*
* High resolution clock support (Pentium only)
*/
void calibrate_cyclecounter(void);
#endif
/*
* pull in #defines for kinds of processors
*/
#include <machine/cputypes.h>
struct cpu_nocpuid_nameclass {
int cpu_vendor;
const char *cpu_vendorname;
const char *cpu_name;
int cpu_class;
void (*cpu_setup)(struct cpu_info *);
};
struct cpu_cpuid_nameclass {
const char *cpu_id;
int cpu_vendor;
const char *cpu_vendorname;
struct cpu_cpuid_family {
int cpu_class;
const char *cpu_models[CPU_MAXMODEL+2];
void (*cpu_setup)(struct cpu_info *);
} cpu_family[CPU_MAXFAMILY - CPU_MINFAMILY + 1];
};
struct cpu_cpuid_feature {
int feature_bit;
const char *feature_name;
};
/* locore.s */
extern int cpu;
extern int cpu_id;
extern char cpu_vendor[]; /* note: NOT nul-terminated */
extern char cpu_brandstr[];
extern int cpuid_level;
extern int cpu_miscinfo;
extern int cpu_feature;
extern int cpu_ecxfeature;
extern int cpu_cache_eax;
extern int cpu_cache_ebx;
extern int cpu_cache_ecx;
extern int cpu_cache_edx;
/* machdep.c */
extern int cpu_apmhalt;
extern int cpu_class;
extern char cpu_model[];
extern const struct cpu_nocpuid_nameclass i386_nocpuid_cpus[];
extern const struct cpu_cpuid_nameclass i386_cpuid_cpus[];
/* apm.c */
extern int cpu_apmwarn;
#if defined(I586_CPU) || defined(I686_CPU)
extern int cpuspeed;
#endif
#if !defined(SMALL_KERNEL)
#define BUS66 6667
#define BUS100 10000
#define BUS133 13333
#define BUS166 16667
#define BUS200 20000
#define BUS266 26667
#define BUS333 33333
extern int bus_clock;
#endif
#ifdef I586_CPU
/* F00F bug fix stuff for pentium cpu */
extern int cpu_f00f_bug;
void fix_f00f(void);
#endif
/* dkcsum.c */
void dkcsumattach(void);
extern int i386_use_fxsave;
extern int i386_has_sse;
extern int i386_has_sse2;
extern void (*update_cpuspeed)(void);
/* machdep.c */
void dumpconf(void);
void cpu_reset(void);
void i386_proc0_tss_ldt_init(void);
void i386_init_pcb_tss_ldt(struct cpu_info *);
void cpuid(u_int32_t, u_int32_t *);
/* locore.s */
struct region_descriptor;
void lgdt(struct region_descriptor *);
void fillw(short, void *, size_t);
struct pcb;
void savectx(struct pcb *);
void switch_exit(struct proc *);
void proc_trampoline(void);
/* clock.c */
void initrtclock(void);
void startrtclock(void);
void rtcdrain(void *);
void i8254_delay(int);
void i8254_initclocks(void);
void i8254_inittimecounter(void);
void i8254_inittimecounter_simple(void);
/* est.c */
#if !defined(SMALL_KERNEL) && defined(I686_CPU)
void est_init(const char *, int);
void est_setperf(int);
#endif
/* longrun.c */
#if !defined(SMALL_KERNEL) && defined(I586_CPU)
void longrun_init(void);
void longrun_setperf(int);
#endif
/* p4tcc.c */
#if !defined(SMALL_KERNEL) && defined(I686_CPU)
void p4tcc_init(int, int);
void p4tcc_setperf(int);
#endif
#if !defined(SMALL_KERNEL) && defined(I586_CPU)
/* powernow.c */
void k6_powernow_init(void);
void k6_powernow_setperf(int);
#endif
#if !defined(SMALL_KERNEL) && defined(I686_CPU)
/* powernow-k7.c */
void k7_powernow_init(void);
void k7_powernow_setperf(int);
/* powernow-k8.c */
void k8_powernow_init(void);
void k8_powernow_setperf(int);
#endif
/* npx.c */
void npxdrop(struct proc *);
void npxsave_proc(struct proc *, int);
void npxsave_cpu(struct cpu_info *, int);
#ifdef USER_LDT
/* sys_machdep.h */
extern int user_ldt_enable;
int i386_get_ldt(struct proc *, void *, register_t *);
int i386_set_ldt(struct proc *, void *, register_t *);
#endif
/* isa_machdep.c */
void isa_defaultirq(void);
void isa_nodefaultirq(void);
int isa_nmi(void);
/* pmap.c */
void pmap_bootstrap(vaddr_t);
/* vm_machdep.c */
int kvtop(caddr_t);
#ifdef MULTIPROCESSOR
/* mp_setperf.c */
void mp_setperf_init(void);
#endif
#ifdef VM86
/* vm86.c */
void vm86_gpfault(struct proc *, int);
#endif /* VM86 */
#ifdef GENERIC
/* swapgeneric.c */
void setconf(void);
#endif /* GENERIC */
#endif /* _KERNEL */
/*
* CTL_MACHDEP definitions.
*/
#define CPU_CONSDEV 1 /* dev_t: console terminal device */
#define CPU_BIOS 2 /* BIOS variables */
#define CPU_BLK2CHR 3 /* convert blk maj into chr one */
#define CPU_CHR2BLK 4 /* convert chr maj into blk one */
#define CPU_ALLOWAPERTURE 5 /* allow mmap of /dev/xf86 */
#define CPU_CPUVENDOR 6 /* cpuid vendor string */
#define CPU_CPUID 7 /* cpuid */
#define CPU_CPUFEATURE 8 /* cpuid features */
#define CPU_APMWARN 9 /* APM battery warning percentage */
#define CPU_KBDRESET 10 /* keyboard reset under pcvt */
#define CPU_APMHALT 11 /* halt -p hack */
#define CPU_USERLDT 12
#define CPU_OSFXSR 13 /* uses FXSAVE/FXRSTOR */
#define CPU_SSE 14 /* supports SSE */
#define CPU_SSE2 15 /* supports SSE2 */
#define CPU_XCRYPT 16 /* supports VIA xcrypt in userland */
#define CPU_MAXID 17 /* number of valid machdep ids */
#define CTL_MACHDEP_NAMES { \
{ 0, 0 }, \
{ "console_device", CTLTYPE_STRUCT }, \
{ "bios", CTLTYPE_INT }, \
{ "blk2chr", CTLTYPE_STRUCT }, \
{ "chr2blk", CTLTYPE_STRUCT }, \
{ "allowaperture", CTLTYPE_INT }, \
{ "cpuvendor", CTLTYPE_STRING }, \
{ "cpuid", CTLTYPE_INT }, \
{ "cpufeature", CTLTYPE_INT }, \
{ "apmwarn", CTLTYPE_INT }, \
{ "kbdreset", CTLTYPE_INT }, \
{ "apmhalt", CTLTYPE_INT }, \
{ "userldt", CTLTYPE_INT }, \
{ "osfxsr", CTLTYPE_INT }, \
{ "sse", CTLTYPE_INT }, \
{ "sse2", CTLTYPE_INT }, \
{ "xcrypt", CTLTYPE_INT }, \
}
/*
* This needs to be included late since it relies on definitions higher
* up in this file.
*/
#if defined(MULTIPROCESSOR) && defined(_KERNEL)
#include <sys/mplock.h>
#endif
#endif /* !_I386_CPU_H_ */