These changes are the raw update to linux-4.4.6-rt14. Kernel sources
[kvmfornfv.git] / kernel / arch / x86 / kernel / trace_clock.c
1 /*
2  * X86 trace clocks
3  */
4 #include <asm/trace_clock.h>
5 #include <asm/barrier.h>
6 #include <asm/msr.h>
7
8 /*
9  * trace_clock_x86_tsc(): A clock that is just the cycle counter.
10  *
11  * Unlike the other clocks, this is not in nanoseconds.
12  */
13 u64 notrace trace_clock_x86_tsc(void)
14 {
15         return rdtsc_ordered();
16 }