drm/panthor: Don't add write fences to the shared BOs
[drm/drm-misc.git] / arch / x86 / kernel / trace_clock.c
blobb8e7abe00b065e08a3982dad5e19eef70f2a191d
1 // SPDX-License-Identifier: GPL-2.0
2 /*
3 * X86 trace clocks
4 */
5 #include <asm/trace_clock.h>
6 #include <asm/barrier.h>
7 #include <asm/msr.h>
9 /*
10 * trace_clock_x86_tsc(): A clock that is just the cycle counter.
12 * Unlike the other clocks, this is not in nanoseconds.
14 u64 notrace trace_clock_x86_tsc(void)
16 return rdtsc_ordered();