#include <sys/cdefs.h>
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/timetc.h>
#include <sys/tslog.h>
#include <machine/cpu.h>

Include dependency graph for subr_clockcalib.c:

Macros
#define	TSC_PPM_UNCERTAINTY 1

#define	TSC_UNCERTAINTY TSC_PPM_UNCERTAINTY * 0.000001

#define	TSC_UNCERTAINTY_SQR TSC_UNCERTAINTY * TSC_UNCERTAINTY

Functions
	__FBSDID ("$FreeBSD$")

uint64_t	clockcalib (uint64_t(clk)(void), const char clkname)

Macro Definition Documentation

◆ TSC_PPM_UNCERTAINTY

#define TSC_PPM_UNCERTAINTY 1

◆ TSC_UNCERTAINTY

#define TSC_UNCERTAINTY TSC_PPM_UNCERTAINTY * 0.000001

◆ TSC_UNCERTAINTY_SQR

#define TSC_UNCERTAINTY_SQR TSC_UNCERTAINTY * TSC_UNCERTAINTY

Function Documentation

◆ __FBSDID()

__FBSDID ( "$FreeBSD$" )

◆ clockcalib()

uint64_t clockcalib	(	uint64_t(*)(void)	clk,
		const char *	clkname
	)

clockcalib(clk, clkname): Return the frequency of the provided timer, as calibrated against the current best-available timecounter.

Definition at line 42 of file subr_clockcalib.c.

References bootverbose, passes, printf(), timecounter, and TSC_UNCERTAINTY_SQR.

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Macros