d/freebsd-skq
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

Add a dummy timecounter until we find the real thing(s).

Browse Source
This commit is contained in:
Poul-Henning Kamp 1998-03-31 10:44:56 +00:00
parent e40c3a225b
commit 75da0aa298
2 changed files with 72 additions and 8 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

40
sys/kern/kern_clock.c
View File

@ -39,7 +39,7 @@ static volatile int print_tci = 1;
* SUCH DAMAGE.
*
* @(#)kern_clock.c 8.5 (Berkeley) 1/21/94
* $Id: kern_clock.c,v 1.59 1998/03/26 20:51:31 phk Exp $
* $Id: kern_clock.c,v 1.60 1998/03/30 09:50:00 phk Exp $
*/
#include <sys/param.h>
@ -618,9 +618,9 @@ init_timecounter(struct timecounter *tc)
ts1.tv_sec -= ts0.tv_sec;
tc->cost = ts1.tv_sec * 1000000000 + ts1.tv_nsec - ts0.tv_nsec;
tc->cost >>= 8;
if (print_tci)
printf("Timecounter \"%s\" frequency %lu Hz cost %u ns\n",
tc->name, tc->frequency, tc->cost);
if (print_tci && strcmp(tc->name, "dummy"))
printf("Timecounter \"%s\" frequency %lu Hz cost %u ns\n",
tc->name, tc->frequency, tc->cost);
/* XXX: For now always start using the counter. */
tc->offset_count = tc->get_timecount();
@ -750,3 +750,35 @@ SYSCTL_PROC(_kern_timecounter, OID_AUTO, frequency, CTLTYPE_INT | CTLFLAG_RW,
SYSCTL_PROC(_kern_timecounter, OID_AUTO, adjustment, CTLTYPE_INT | CTLFLAG_RW,
0, sizeof(int), sysctl_kern_timecounter_adjustment, "I", "");
/*
* Implement a dummy timecounter which we can use until we get a real one
* in the air. This allows the console and other early stuff to use
* timeservices.
*/
static u_int64_t
dummy_get_timecount(void)
{
static u_int64_t now;
return (++now);
}
static struct timecounter dummy_timecounter[3] = {
{
0,
dummy_get_timecount,
~0,
100000,
"dummy"
}
};
static void
initdummytimecounter(dummy)
void *dummy;
{
init_timecounter(dummy_timecounter);
}
SYSINIT(dummytc, SI_SUB_CONSOLE, SI_ORDER_FIRST, initdummytimecounter, NULL)

40
sys/kern/kern_tc.c
View File

@ -39,7 +39,7 @@ static volatile int print_tci = 1;
* SUCH DAMAGE.
*
* @(#)kern_clock.c 8.5 (Berkeley) 1/21/94
* $Id: kern_clock.c,v 1.59 1998/03/26 20:51:31 phk Exp $
* $Id: kern_clock.c,v 1.60 1998/03/30 09:50:00 phk Exp $
*/
#include <sys/param.h>
@ -618,9 +618,9 @@ init_timecounter(struct timecounter *tc)
ts1.tv_sec -= ts0.tv_sec;
tc->cost = ts1.tv_sec * 1000000000 + ts1.tv_nsec - ts0.tv_nsec;
tc->cost >>= 8;
if (print_tci)
printf("Timecounter \"%s\" frequency %lu Hz cost %u ns\n",
tc->name, tc->frequency, tc->cost);
if (print_tci && strcmp(tc->name, "dummy"))
printf("Timecounter \"%s\" frequency %lu Hz cost %u ns\n",
tc->name, tc->frequency, tc->cost);
/* XXX: For now always start using the counter. */
tc->offset_count = tc->get_timecount();
@ -750,3 +750,35 @@ SYSCTL_PROC(_kern_timecounter, OID_AUTO, frequency, CTLTYPE_INT | CTLFLAG_RW,
SYSCTL_PROC(_kern_timecounter, OID_AUTO, adjustment, CTLTYPE_INT | CTLFLAG_RW,
0, sizeof(int), sysctl_kern_timecounter_adjustment, "I", "");
/*
* Implement a dummy timecounter which we can use until we get a real one
* in the air. This allows the console and other early stuff to use
* timeservices.
*/
static u_int64_t
dummy_get_timecount(void)
{
static u_int64_t now;
return (++now);
}
static struct timecounter dummy_timecounter[3] = {
{
0,
dummy_get_timecount,
~0,
100000,
"dummy"
}
};
static void
initdummytimecounter(dummy)
void *dummy;
{
init_timecounter(dummy_timecounter);
}
SYSINIT(dummytc, SI_SUB_CONSOLE, SI_ORDER_FIRST, initdummytimecounter, NULL)