| // SPDX-License-Identifier: GPL-2.0 | |
| /* | |
| * X86 trace clocks | |
| */ | |
| #include <asm/trace_clock.h> | |
| #include <asm/barrier.h> | |
| #include <asm/msr.h> | |
| /* | |
| * trace_clock_x86_tsc(): A clock that is just the cycle counter. | |
| * | |
| * Unlike the other clocks, this is not in nanoseconds. | |
| */ | |
| u64 notrace trace_clock_x86_tsc(void) | |
| { | |
| return rdtsc_ordered(); | |
| } |