qemu/pc-bios/s390-ccw/s390-time.h

24 lines
360 B
C

#ifndef TIME_H
#define TIME_H
static inline u64 get_clock(void)
{
u64 r;
asm volatile("stck %0" : "=Q" (r) : : "cc");
return r;
}
static inline u64 get_time_ms(void)
{
/* Bit 51 is incremented each microsecond */
return (get_clock() >> 12) / 1000;
}
static inline u64 get_time_seconds(void)
{
return get_time_ms() / 1000;
}
#endif