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/* $NetBSD: cpu.h,v 1.112 2004/01/04 11:44:52 jdolecek 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_
#ifdef _KERNEL
#if defined(_KERNEL_OPT)
#include "opt_multiprocessor.h"
#include "opt_math_emulate.h"
#include "opt_user_ldt.h"
#include "opt_vm86.h"
#endif
/*
* Definitions unique to i386 cpu support.
*/
#include <machine/frame.h>
#include <machine/segments.h>
#include <machine/tss.h>
#include <machine/intrdefs.h>
#include <x86/cacheinfo.h>
#include <sys/device.h>
#include <sys/lock.h> /* will also get LOCKDEBUG */
#include <sys/sched.h>
#include <lib/libkern/libkern.h> /* offsetof */
struct intrsource;
/*
* a bunch of this belongs in cpuvar.h; move it later..
*/
struct cpu_info {
struct device *ci_dev; /* pointer to our device */
struct cpu_info *ci_self; /* self-pointer */
void *ci_tlog_base; /* Trap log base */
int32_t ci_tlog_offset; /* Trap log current offset */
struct schedstate_percpu ci_schedstate; /* scheduler state */
struct cpu_info *ci_next; /* next cpu */
/*
* Public members.
*/
struct lwp *ci_curlwp; /* 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 */
u_long ci_spin_locks; /* # of spin locks held */
u_long ci_simple_locks; /* # of simple locks held */
/*
* Private members.
*/
struct lwp *ci_fpcurlwp; /* 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_int32_t ci_flags; /* flags; see below */
u_int32_t ci_ipis; /* interprocessor interrupts pending */
int sc_apic_version; /* local APIC version */
int32_t ci_cpuid_level;
u_int32_t ci_signature; /* X86 cpuid type */
u_int32_t ci_feature_flags;/* X86 CPUID feature bits */
u_int32_t ci_cpu_class; /* CPU class */
u_int32_t ci_brand_id; /* Intel brand id */
u_int32_t ci_vendor[4]; /* vendor string */
u_int32_t ci_cpu_serial[3]; /* PIII serial number */
u_int64_t ci_tsc_freq; /* cpu cycles/second */
struct cpu_functions *ci_func; /* start/stop functions */
void (*cpu_setup)(struct cpu_info *);
/* proc-dependant init */
void (*ci_info)(struct cpu_info *);
int ci_want_resched;
int ci_astpending;
struct trapframe *ci_ddb_regs;
u_int ci_cflush_lsize; /* CFLUSH insn line size */
struct x86_cache_info ci_cinfo[CAI_COUNT];
/*
* Variables used by cc_microtime().
*/
struct timeval ci_cc_time;
int64_t ci_cc_cc;
int64_t ci_cc_ms_delta;
int64_t ci_cc_denom;
union descriptor *ci_gdt;
struct i386tss ci_doubleflt_tss;
struct i386tss ci_ddbipi_tss;
char *ci_doubleflt_stack;
char *ci_ddbipi_stack;
struct evcnt ci_ipi_events[X86_NIPI];
};
/*
* 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 */
#define CPUF_PAUSE 0x4000 /* CPU is paused in DDB */
#define CPUF_GO 0x8000 /* CPU should start 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) cii = 0, ci = cpu_info_list; \
ci != NULL; ci = ci->ci_next
#if defined(MULTIPROCESSOR)
#define X86_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 * __attribute__((__unused__))
curcpu()
{
struct cpu_info *ci;
__asm __volatile("movl %%fs:%1, %0" :
"=r" (ci) :
"m"
(*(struct cpuinfo * const *)offsetof(struct cpu_info, ci_self)));
return ci;
}
#define cpu_number() (curcpu()->ci_cpuid)
#define CPU_IS_PRIMARY(ci) ((ci)->ci_flags & CPUF_PRIMARY)
#define aston(p) ((p)->p_md.md_astpending = 1)
extern struct cpu_info *cpu_info[X86_MAXPROCS];
void cpu_boot_secondary_processors(void);
void cpu_init_idle_pcbs(void);
/*
* 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 *);
#else /* !MULTIPROCESSOR */
#define X86_MAXPROCS 1
#define curcpu() (&cpu_info_primary)
/*
* definitions of cpu-dependent requirements
* referenced in generic code
*/
#define cpu_number() 0
#define CPU_IS_PRIMARY(ci) 1
/*
* Preempt the current process if in interrupt from user mode,
* or after the current trap/syscall if in system mode.
*/
#define need_resched(ci) \
do { \
struct cpu_info *__ci = (ci); \
__ci->ci_want_resched = 1; \
if (__ci->ci_curlwp != NULL) \
aston(__ci->ci_curlwp->l_proc); \
} while (/*CONSTCOND*/0)
#define aston(p) ((p)->p_md.md_astpending = 1)
#endif /* MULTIPROCESSOR */
extern u_int32_t cpus_attached;
#define curpcb curcpu()->ci_curpcb
#define curlwp curcpu()->ci_curlwp
/*
* Arguments to hardclock, softclock and statclock
* encapsulate the previous machine state in an opaque
* clockframe; for now, use generic intrframe.
*
* Note: Since spllowersoftclock() does not actually unmask the currently
* running (hardclock) interrupt, CLKF_BASEPRI() *must* always be 0; otherwise
* we could stall hardclock ticks if another interrupt takes too long.
*/
#define clockframe intrframe
#define CLKF_USERMODE(frame) USERMODE((frame)->if_cs, (frame)->if_eflags)
#define CLKF_BASEPRI(frame) (0)
#define CLKF_PC(frame) ((frame)->if_eip)
#define CLKF_INTR(frame) (curcpu()->ci_idepth > 1)
/*
* This is used during profiling to integrate system time. It can safely
* assume that the process is resident.
*/
#define LWP_PC(l) ((l)->l_md.md_regs->tf_eip)
/*
* 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) ((p)->p_flag |= P_OWEUPC, 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;
extern void (*microtime_func)(struct timeval *);
#define DELAY(x) (*delay_func)(x)
#define delay(x) (*delay_func)(x)
#define microtime(tv) (*microtime_func)(tv)
/*
* 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 *);
void (*cpu_cacheinfo)(struct cpu_info *);
void (*cpu_info)(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 *);
void (*cpu_probe)(struct cpu_info *);
void (*cpu_info)(struct cpu_info *);
} cpu_family[CPU_MAXFAMILY - CPU_MINFAMILY + 1];
};
extern int biosbasemem;
extern int biosextmem;
extern unsigned int cpu_feature;
extern int cpu;
extern int cpu_class;
extern const struct cpu_nocpuid_nameclass i386_nocpuid_cpus[];
extern const struct cpu_cpuid_nameclass i386_cpuid_cpus[];
extern int i386_use_fxsave;
extern int i386_has_sse;
extern int i386_has_sse2;
/* machdep.c */
void dumpconf(void);
int cpu_maxproc(void);
void cpu_reset(void);
void i386_init_pcb_tss_ldt(struct cpu_info *);
void i386_proc0_tss_ldt_init(void);
/* identcpu.c */
extern int tmx86_has_longrun;
extern u_int crusoe_longrun;
extern u_int crusoe_frequency;
extern u_int crusoe_voltage;
extern u_int crusoe_percentage;
extern u_int tmx86_set_longrun_mode(u_int);
void tmx86_get_longrun_status_all(void);
u_int tmx86_get_longrun_mode(void);
void identifycpu(struct cpu_info *);
/* vm_machdep.c */
void cpu_proc_fork(struct proc *, struct proc *);
/* locore.s */
struct region_descriptor;
void lgdt(struct region_descriptor *);
void fillw(short, void *, size_t);
struct pcb;
void savectx(struct pcb *);
void proc_trampoline(void);
/* clock.c */
void initrtclock(void);
void startrtclock(void);
void i8254_delay(int);
void i8254_microtime(struct timeval *);
void i8254_initclocks(void);
/* kern_microtime.c */
extern struct timeval cc_microset_time;
void cc_microtime(struct timeval *);
void cc_microset(struct cpu_info *);
/* cpu.c */
void cpu_probe_features(struct cpu_info *);
/* npx.c */
void npxsave_lwp(struct lwp *, int);
void npxsave_cpu(struct cpu_info *, int);
/* vm_machdep.c */
int kvtop(caddr_t);
#ifdef MATH_EMULATE
/* math_emulate.c */
int math_emulate(struct trapframe *, ksiginfo_t *);
#endif
#ifdef USER_LDT
/* sys_machdep.h */
int i386_get_ldt(struct lwp *, void *, register_t *);
int i386_set_ldt(struct lwp *, void *, register_t *);
#endif
/* isa_machdep.c */
void isa_defaultirq(void);
int isa_nmi(void);
#ifdef VM86
/* vm86.c */
void vm86_gpfault(struct lwp *, int);
#endif /* VM86 */
/* consinit.c */
void kgdb_port_init(void);
/* bus_machdep.c */
void x86_bus_space_init(void);
void x86_bus_space_mallocok(void);
#include <machine/psl.h> /* Must be after struct cpu_info declaration */
#endif /* _KERNEL */
/*
* CTL_MACHDEP definitions.
*/
#define CPU_CONSDEV 1 /* dev_t: console terminal device */
#define CPU_BIOSBASEMEM 2 /* int: bios-reported base mem (K) */
#define CPU_BIOSEXTMEM 3 /* int: bios-reported ext. mem (K) */
#define CPU_NKPDE 4 /* int: number of kernel PDEs */
#define CPU_BOOTED_KERNEL 5 /* string: booted kernel name */
#define CPU_DISKINFO 6 /* struct disklist *:
* disk geometry information */
#define CPU_FPU_PRESENT 7 /* int: FPU is present */
#define CPU_OSFXSR 8 /* int: OS uses FXSAVE/FXRSTOR */
#define CPU_SSE 9 /* int: OS/CPU supports SSE */
#define CPU_SSE2 10 /* int: OS/CPU supports SSE2 */
#define CPU_TMLR_MODE 11 /* int: longrun mode
* 0: minimum frequency
* 1: economy
* 2: performance
* 3: maximum frequency
*/
#define CPU_TMLR_FREQUENCY 12 /* int: current frequency */
#define CPU_TMLR_VOLTAGE 13 /* int: curret voltage */
#define CPU_TMLR_PERCENTAGE 14 /* int: current clock percentage */
#define CPU_MAXID 15 /* number of valid machdep ids */
#define CTL_MACHDEP_NAMES { \
{ 0, 0 }, \
{ "console_device", CTLTYPE_STRUCT }, \
{ "biosbasemem", CTLTYPE_INT }, \
{ "biosextmem", CTLTYPE_INT }, \
{ "nkpde", CTLTYPE_INT }, \
{ "booted_kernel", CTLTYPE_STRING }, \
{ "diskinfo", CTLTYPE_STRUCT }, \
{ "fpu_present", CTLTYPE_INT }, \
{ "osfxsr", CTLTYPE_INT }, \
{ "sse", CTLTYPE_INT }, \
{ "sse2", CTLTYPE_INT }, \
{ "tm_longrun_mode", CTLTYPE_INT }, \
{ "tm_longrun_frequency", CTLTYPE_INT }, \
{ "tm_longrun_voltage", CTLTYPE_INT }, \
{ "tm_longrun_percentage", CTLTYPE_INT }, \
}
/*
* Structure for CPU_DISKINFO sysctl call.
* XXX this should be somewhere else.
*/
#define MAX_BIOSDISKS 16
struct disklist {
int dl_nbiosdisks; /* number of bios disks */
struct biosdisk_info {
int bi_dev; /* BIOS device # (0x80 ..) */
int bi_cyl; /* cylinders on disk */
int bi_head; /* heads per track */
int bi_sec; /* sectors per track */
u_int64_t bi_lbasecs; /* total sec. (iff ext13) */
#define BIFLAG_INVALID 0x01
#define BIFLAG_EXTINT13 0x02
int bi_flags;
} dl_biosdisks[MAX_BIOSDISKS];
int dl_nnativedisks; /* number of native disks */
struct nativedisk_info {
char ni_devname[16]; /* native device name */
int ni_nmatches; /* # of matches w/ BIOS */
int ni_biosmatches[MAX_BIOSDISKS]; /* indices in dl_biosdisks */
} dl_nativedisks[1]; /* actually longer */
};
#endif /* !_I386_CPU_H_ */
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