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#ifndef CPU_X86_TSC_H
#define CPU_X86_TSC_H
struct tsc_struct {
unsigned lo;
unsigned hi;
};
typedef struct tsc_struct tsc_t;
static tsc_t rdtsc(void)
{
tsc_t res;
__asm__ __volatile__ (
"rdtsc"
: "=a" (res.lo), "=d"(res.hi) /* outputs */
);
return res;
}
#ifndef __ROMCC__
static inline unsigned long long rdtscll(void)
{
unsigned long long val;
asm volatile ("rdtsc" : "=A" (val));
return val;
}
#endif
#endif /* CPU_X86_TSC_H */
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