/* $OpenBSD: cpu.h,v 1.31 2007/05/29 18:53:52 deraadt Exp $ */
/* $NetBSD: cpu.h,v 1.1 2003/04/26 18:39:39 fvdl 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 _AMD64_CPU_H_
#define _AMD64_CPU_H_
/*
* Definitions unique to x86-64 cpu support.
*/
#include <machine/frame.h>
#include <machine/segments.h>
#include <machine/tss.h>
#include <machine/intrdefs.h>
#include <machine/cacheinfo.h>
#ifdef MULTIPROCESSOR
#include <machine/i82489reg.h>
#include <machine/i82489var.h>
#endif
#include <sys/device.h>
#include <sys/lock.h>
#include <sys/sched.h>
#include <sys/sensors.h>
#ifdef _KERNEL
struct cpu_info {
struct device *ci_dev;
struct cpu_info *ci_self;
struct schedstate_percpu ci_schedstate; /* scheduler state */
struct cpu_info *ci_next;
struct proc *ci_curproc;
struct simplelock ci_slock;
u_int ci_cpuid;
u_int ci_apicid;
u_long ci_spin_locks;
u_long ci_simple_locks;
u_int64_t ci_scratch;
struct proc *ci_fpcurproc;
int ci_fpsaving;
volatile u_int32_t ci_tlb_ipi_mask;
struct pcb *ci_curpcb;
struct pcb *ci_idle_pcb;
int ci_idle_tss_sel;
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;
u_int ci_flags;
u_int32_t ci_ipis;
u_int32_t ci_feature_flags;
u_int32_t ci_feature_eflags;
u_int32_t ci_signature;
u_int64_t ci_tsc_freq;
struct cpu_functions *ci_func;
void (*cpu_setup)(struct cpu_info *);
void (*ci_info)(struct cpu_info *);
int ci_want_resched;
struct x86_cache_info ci_cinfo[CAI_COUNT];
struct timeval ci_cc_time;
int64_t ci_cc_cc;
int64_t ci_cc_ms_delta;
int64_t ci_cc_denom;
char *ci_gdt;
volatile int ci_ddb_paused;
#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 x86_64_tss ci_doubleflt_tss;
char *ci_doubleflt_stack;
struct ksensordev ci_sensordev;
struct ksensor ci_sensor;
};
#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_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 */
#define PROC_PC(p) ((p)->p_md.md_regs->tf_rip)
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)
/*
* 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 *);
#if defined(MULTIPROCESSOR)
#define X86_MAXPROCS 32 /* bitmask; can be bumped to 64 */
#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))
#define curcpu() ({struct cpu_info *__ci; \
asm volatile("movq %%gs:8,%0" : "=r" (__ci)); \
__ci;})
#define cpu_number() (curcpu()->ci_cpuid)
#define CPU_IS_PRIMARY(ci) ((ci)->ci_flags & CPUF_PRIMARY)
extern struct cpu_info *cpu_info[X86_MAXPROCS];
void cpu_boot_secondary_processors(void);
void cpu_init_idle_pcbs(void);
#else /* !MULTIPROCESSOR */
#define X86_MAXPROCS 1
#ifdef _KERNEL
extern struct cpu_info cpu_info_primary;
#define curcpu() (&cpu_info_primary)
#endif
/*
* definitions of cpu-dependent requirements
* referenced in generic code
*/
#define cpu_number() 0
#define CPU_IS_PRIMARY(ci) 1
#endif /* MULTIPROCESSOR */
#endif /* _KERNEL */
#include <machine/psl.h>
#ifdef MULTIPROCESSOR
#include <sys/mplock.h>
#endif
#define aston(p) ((p)->p_md.md_astpending = 1)
extern u_int32_t cpus_attached;
#define curpcb curcpu()->ci_curpcb
#define curproc curcpu()->ci_curproc
/*
* Arguments to hardclock, softclock and statclock
* encapsulate the previous machine state in an opaque
* clockframe; for now, use generic intrframe.
*/
#define clockframe intrframe
#define CLKF_USERMODE(frame) USERMODE((frame)->if_cs, (frame)->if_rflags)
#define CLKF_PC(frame) ((frame)->if_rip)
#define CLKF_INTR(frame) (curcpu()->ci_idepth > 1)
/*
* This is used during profiling to integrate system time.
*/
#define PROC_PC(p) ((p)->p_md.md_regs->tf_rip)
/*
* 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)
void signotify(struct proc *);
/*
* 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)
#ifdef _KERNEL
extern int biosbasemem;
extern int biosextmem;
extern int cpu;
extern int cpu_feature;
extern int cpu_ecxfeature;
extern int cpu_id;
extern char cpu_vendor[];
extern int cpuid_level;
extern int cpuspeed;
/* identcpu.c */
void identifycpu(struct cpu_info *);
int cpu_amd64speed(int *);
void cpu_probe_features(struct cpu_info *);
/* machdep.c */
void dumpconf(void);
int cpu_maxproc(void);
void cpu_reset(void);
void x86_64_proc0_tss_ldt_init(void);
void x86_64_bufinit(void);
void x86_64_init_pcb_tss_ldt(struct cpu_info *);
void cpu_proc_fork(struct proc *, struct proc *);
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 (*)(struct proc *));
void proc_trampoline(void);
void child_trampoline(void);
/* clock.c */
void initrtclock(void);
void startrtclock(void);
void i8254_delay(int);
void i8254_initclocks(void);
void i8254_inittimecounter(void);
void i8254_inittimecounter_simple(void);
void cpu_init_msrs(struct cpu_info *);
/* trap.c */
void child_return(void *);
/* dkcsum.c */
void dkcsumattach(void);
/* consinit.c */
void kgdb_port_init(void);
/* bus_machdep.c */
void x86_bus_space_init(void);
void x86_bus_space_mallocok(void);
/* powernow-k8.c */
void k8_powernow_init(struct cpu_info *);
void k8_powernow_setperf(int);
void est_init(struct cpu_info *);
void est_setperf(int);
#ifdef MULTIPROCESSOR
/* mp_setperf.c */
void mp_setperf_init(void);
#endif
#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_MAXID 13 /* 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 }, \
}
/*
* Default cr4 flags.
* Doesn't really belong here, but doesn't really belong anywhere else
* either. Just to avoid painful mismatches of cr4 flags since they are
* set in three different places.
*/
#define CR4_DEFAULT (CR4_PAE|CR4_PGE|CR4_PSE|CR4_OSFXSR|CR4_OSXMMEXCPT)
#endif /* !_AMD64_CPU_H_ */