kern_tc.c File Reference

#include <sys/cdefs.h>
#include "opt_compat.h"
#include "opt_ntp.h"
#include "opt_ffclock.h"
#include <sys/param.h>
#include <sys/kernel.h>
#include <sys/limits.h>
#include <sys/lock.h>
#include <sys/mutex.h>
#include <sys/sbuf.h>
#include <sys/sysctl.h>
#include <sys/syslog.h>
#include <sys/systm.h>
#include <sys/timeffc.h>
#include <sys/timepps.h>
#include <sys/timetc.h>
#include <sys/timex.h>
#include <sys/vdso.h>
#include <machine/atomic.h>

Include dependency graph for kern_tc.c:

Data Structures
struct	timehands

Macros
#define	LARGE_STEP   200

Functions
	__FBSDID ("$FreeBSD r284178 2015-06-09T11:49:56Z$")
	SYSCTL_PROC (_kern, KERN_BOOTTIME, boottime, CTLTYPE_STRUCT|CTLFLAG_RD, NULL, 0, sysctl_kern_boottime, "S,timeval", "System boottime")
	SYSCTL_NODE (_kern, OID_AUTO, timecounter, CTLFLAG_RW, 0, "")
	SYSCTL_INT (_kern_timecounter, OID_AUTO, stepwarnings, CTLFLAG_RW, &timestepwarnings, 0, "Log time steps")
	SYSCTL_PROC (_kern_timecounter, OID_AUTO, alloweddeviation, CTLTYPE_INT|CTLFLAG_RWTUN|CTLFLAG_MPSAFE, 0, 0, sysctl_kern_timecounter_adjprecision, "I", "Allowed time interval deviation in percents")
void	dtrace_getnanotime (struct timespec *tsp)
void	binuptime (struct bintime *bt)
void	nanouptime (struct timespec *tsp)
void	microuptime (struct timeval *tvp)
void	bintime (struct bintime *bt)
void	nanotime (struct timespec *tsp)
void	microtime (struct timeval *tvp)
void	getbinuptime (struct bintime *bt)
void	getnanouptime (struct timespec *tsp)
void	getmicrouptime (struct timeval *tvp)
void	getbintime (struct bintime *bt)
void	getnanotime (struct timespec *tsp)
void	getmicrotime (struct timeval *tvp)
void	sysclock_getsnapshot (struct sysclock_snap *clock_snap, int fast)
int	sysclock_snap2bintime (struct sysclock_snap *cs, struct bintime *bt, int whichclock, uint32_t flags)
void	tc_init (struct timecounter *tc)
uint64_t	tc_getfrequency (void)
void	tc_setclock (struct timespec *ts)
	SYSCTL_PROC (_kern_timecounter, OID_AUTO, hardware, CTLTYPE_STRING|CTLFLAG_RW, 0, 0, sysctl_kern_timecounter_hardware, "A", "Timecounter hardware selected")
	SYSCTL_PROC (_kern_timecounter, OID_AUTO, choice, CTLTYPE_STRING|CTLFLAG_RD, 0, 0, sysctl_kern_timecounter_choice, "A", "Timecounter hardware detected")
int	pps_ioctl (u_long cmd, caddr_t data, struct pps_state *pps)
void	pps_init (struct pps_state *pps)
void	pps_init_abi (struct pps_state *pps)
void	pps_capture (struct pps_state *pps)
void	pps_event (struct pps_state *pps, int event)
	SYSCTL_INT (_kern_timecounter, OID_AUTO, tick, CTLFLAG_RD, &tc_tick, 0, "Approximate number of hardclock ticks in a millisecond")
void	tc_ticktock (int cnt)
	SYSINIT (timecounter, SI_SUB_CLOCKS, SI_ORDER_SECOND, inittimecounter, NULL)
void	cpu_tick_calibration (void)
void	set_cputicker (cpu_tick_f *func, uint64_t freq, unsigned var)
uint64_t	cpu_tickrate (void)
uint64_t	cputick2usec (uint64_t tick)
	SYSCTL_PROC (_kern_timecounter, OID_AUTO, fast_gettime, CTLTYPE_INT|CTLFLAG_RW|CTLFLAG_MPSAFE, NULL, 0, sysctl_fast_gettime, "I", "Enable fast time of day")
uint32_t	tc_fill_vdso_timehands (struct vdso_timehands *vdso_th)

Variables
struct timecounter *	timecounter = &dummy_timecounter
int	tc_min_ticktock_freq = 1
volatile time_t	time_second = 1
volatile time_t	time_uptime = 1
struct bintime	boottimebin
struct timeval	boottime
struct bintime	bt_timethreshold
struct bintime	bt_tickthreshold
sbintime_t	sbt_timethreshold
sbintime_t	sbt_tickthreshold
struct bintime	tc_tick_bt
sbintime_t	tc_tick_sbt
int	tc_precexp
int	tc_timepercentage = TC_DEFAULTPERC
int	time_status
long	time_esterror
cpu_tick_f *	cpu_ticks = tc_cpu_ticks