ticks_t clockobj_get_time(struct clockobj *clkobj)
{
ticks_t ns = clockobj_get_tsc();
if (clockobj_get_resolution(clkobj) > 1)
return ns / clockobj_get_resolution(clkobj);
return ns;
}
void __clockobj_ticks_to_timespec(struct clockobj *clkobj,
ticks_t ticks,
struct timespec *ts)
{
unsigned int freq;
if (clockobj_get_resolution(clkobj) > 1) {
freq = clockobj_get_frequency(clkobj);
ts->tv_sec = ticks / freq;
ts->tv_nsec = ticks - (ts->tv_sec * freq);
ts->tv_nsec *= clockobj_get_resolution(clkobj);
} else
clockobj_ns_to_timespec(ticks, ts);
}
void clockobj_get_time(struct clockobj *clkobj,
ticks_t *pticks, ticks_t *ptsc)
{
unsigned long long ns, tsc;
tsc = __xn_rdtsc();
ns = cobalt_ticks_to_ns(tsc);
if (clockobj_get_resolution(clkobj) > 1)
ns /= clockobj_get_resolution(clkobj);
*pticks = ns;
if (ptsc)
*ptsc = tsc;
}
void clockobj_get_date(struct clockobj *clkobj, ticks_t *pticks)
{
unsigned long long ns;
read_lock_nocancel(&clkobj->lock);
ns = cobalt_ticks_to_ns(__xn_rdtsc());
/* Add offset to epoch. */
ns += (unsigned long long)clkobj->offset.tv_sec * 1000000000ULL;
ns += clkobj->offset.tv_nsec;
if (clockobj_get_resolution(clkobj) > 1)
ns /= clockobj_get_resolution(clkobj);
*pticks = ns;
read_unlock(&clkobj->lock);
}
int sysClkRateGet(void)
{
unsigned int resolution;
struct service svc;
COPPERPLATE_PROTECT(svc);
resolution = clockobj_get_resolution(&wind_clock);
COPPERPLATE_UNPROTECT(svc);
return 1000000000 / resolution;
}
void clockobj_get_time(struct clockobj *clkobj, ticks_t *pticks,
ticks_t *ptsc)
{
struct timespec now;
__RT(clock_gettime(CLOCK_COPPERPLATE, &now));
/* Convert the time value to ticks, with no offset. */
if (clockobj_get_resolution(clkobj) > 1)
*pticks = (ticks_t)now.tv_sec * clockobj_get_frequency(clkobj)
+ (ticks_t)now.tv_nsec / clockobj_get_resolution(clkobj);
else
*pticks = timespec_scalar(&now);
/*
* Mercury has a single time source, with TSC == monotonic
* time.
*/
if (ptsc)
*ptsc = *pticks;
}
void clockobj_get_date(struct clockobj *clkobj, ticks_t *pticks)
{
struct timespec now, date;
read_lock_nocancel(&clkobj->lock);
__RT(clock_gettime(CLOCK_COPPERPLATE, &now));
/* Add offset from epoch to current system time. */
timespec_add(&date, &clkobj->offset, &now);
/* Convert the time value to ticks,. */
*pticks = (ticks_t)date.tv_sec * clockobj_get_frequency(clkobj)
+ (ticks_t)date.tv_nsec / clockobj_get_resolution(clkobj);
read_unlock(&clkobj->lock);
}
