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NetBSD/sys/arch/i386/include/cpu.h

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/* $NetBSD: cpu.h,v 1.67 2000/12/10 19:29:31 mycroft 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. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by the University of
* California, Berkeley and its contributors.
* 4. 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_
#if defined(_KERNEL) && !defined(_LKM)
#include "opt_multiprocessor.h"
#include "opt_lockdebug.h"
#endif
/*
* Definitions unique to i386 cpu support.
*/
#include <machine/psl.h>
#include <machine/frame.h>
#include <machine/segments.h>
#include <sys/sched.h>
struct cpu_info {
struct schedstate_percpu ci_schedstate; /* scheduler state */
#if defined(DIAGNOSTIC) || defined(LOCKDEBUG)
u_long ci_spin_locks; /* # of spin locks held */
u_long ci_simple_locks; /* # of simple locks held */
#endif
};
#ifdef _KERNEL
extern struct cpu_info cpu_info_store;
#define curcpu() (&cpu_info_store)
#endif
/*
* definitions of cpu-dependent requirements
* referenced in generic code
*/
#define cpu_swapin(p) /* nothing */
#define cpu_number() 0
/*
* 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
#define CLKF_USERMODE(frame) USERMODE((frame)->if_cs, (frame)->if_eflags)
#define CLKF_BASEPRI(frame) ((frame)->if_ppl == 0)
#define CLKF_PC(frame) ((frame)->if_eip)
#define CLKF_INTR(frame) ((frame)->if_ppl & (1 << IPL_TAGINTR))
/*
* This is used during profiling to integrate system time. It can safely
* assume that the process is resident.
*/
#define PROC_PC(p) ((p)->p_md.md_regs->tf_eip)
/*
* Preempt the current process if in interrupt from user mode,
* or after the current trap/syscall if in system mode.
*/
int want_resched; /* resched() was called */
#define need_resched(ci) (want_resched = 1, setsoftast())
/*
* 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, setsoftast())
/*
* Notify the current process (p) that it has a signal pending,
* process as soon as possible.
*/
#define signotify(p) setsoftast()
/*
* We need a machine-independent name for this.
*/
#define DELAY(x) delay(x)
/*
* 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) __P((void));
};
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) __P((void));
} cpu_family[CPU_MAXFAMILY - CPU_MINFAMILY + 1];
};
#ifdef _KERNEL
extern int biosbasemem;
extern int biosextmem;
extern int cpu;
extern int cpu_class;
extern int cpu_feature;
extern int cpu_id;
extern char cpu_vendor[];
extern int cpuid_level;
extern const struct cpu_nocpuid_nameclass i386_nocpuid_cpus[];
extern const struct cpu_cpuid_nameclass i386_cpuid_cpus[];
/* machdep.c */
void delay __P((int));
void dumpconf __P((void));
void cpu_reset __P((void));
void i386_proc0_tss_ldt_init __P((void));
void i386_bufinit __P((void));
/* locore.s */
struct region_descriptor;
void lgdt __P((struct region_descriptor *));
void fillw __P((short, void *, size_t));
struct pcb;
void savectx __P((struct pcb *));
void switch_exit __P((struct proc *));
void proc_trampoline __P((void));
/* clock.c */
void initrtclock __P((void));
void startrtclock __P((void));
/* npx.c */
void npxdrop __P((void));
void npxsave __P((void));
/* vm_machdep.c */
int kvtop __P((caddr_t));
#if !defined(_LKM)
#include "opt_math_emulate.h"
#endif
#ifdef MATH_EMULATE
/* math_emulate.c */
int math_emulate __P((struct trapframe *));
#endif
#if !defined(_LKM)
#include "opt_user_ldt.h"
#endif
#ifdef USER_LDT
/* sys_machdep.h */
void i386_user_cleanup __P((struct pcb *));
int i386_get_ldt __P((struct proc *, char *, register_t *));
int i386_set_ldt __P((struct proc *, char *, register_t *));
#endif
/* isa_machdep.c */
void isa_defaultirq __P((void));
int isa_nmi __P((void));
#if !defined(_LKM)
#include "opt_vm86.h"
#endif
#ifdef VM86
/* vm86.c */
void vm86_gpfault __P((struct proc *, int));
#endif /* VM86 */
/* trap.c */
void child_return __P((void *));
/* consinit.c */
void kgdb_port_init __P((void));
/* bus_machdep.c */
void i386_bus_space_init __P((void));
void i386_bus_space_mallocok __P((void));
#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 /* disk geometry information */
#define CPU_FPU_PRESENT 7 /* FPU is present */
#define CPU_MAXID 8 /* 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 }, \
}
/*
* 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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