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Code Issues Releases Activity

Move timecounters notion of frequency to 64 bits.

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[WARNING: CPUs in the distant future may be closer than they appear!]
This commit is contained in:
Poul-Henning Kamp 2003-01-29 11:29:22 +00:00
parent c152df28e5
commit 60ca399653
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=110038
2 changed files with 6 additions and 5 deletions
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7
sys/kern/kern_tc.c
View File

@ -12,6 +12,7 @@
#include "opt_ntp.h"
#include <sys/param.h>
#include <sys/stdint.h>
#include <sys/kernel.h>
#include <sys/sysctl.h>
#include <sys/systm.h>
@ -282,8 +283,8 @@ tc_init(struct timecounter *tc)
{
unsigned u;
printf("Timecounter \"%s\" frequency %lu Hz",
tc->tc_name, (u_long)tc->tc_frequency);
printf("Timecounter \"%s\" frequency %ju Hz",
tc->tc_name, (intmax_t)tc->tc_frequency);
u = tc->tc_frequency / tc->tc_counter_mask;
if (u > hz) {
@ -299,7 +300,7 @@ tc_init(struct timecounter *tc)
}
/* Report the frequency of the current timecounter. */
u_int32_t
u_int64_t
tc_getfrequency(void)
{

4
sys/sys/timetc.h
View File

@ -47,7 +47,7 @@ struct timecounter {
*/
u_int tc_counter_mask;
/* This mask should mask off any unimplemented bits. */
u_int32_t tc_frequency;
u_int64_t tc_frequency;
/* Frequency of the counter in Hz. */
char *tc_name;
/* Name of the timecounter. */
@ -59,7 +59,7 @@ struct timecounter {
extern struct timecounter *timecounter;
u_int32_t tc_getfrequency(void);
u_int64_t tc_getfrequency(void);
void tc_init(struct timecounter *tc);
void tc_setclock(struct timespec *ts);
void tc_ticktock(void);