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-rw-r--r--vppinfra/vppinfra/time.h12
1 files changed, 11 insertions, 1 deletions
diff --git a/vppinfra/vppinfra/time.h b/vppinfra/vppinfra/time.h
index 524eff6c7a1..3c481082ced 100644
--- a/vppinfra/vppinfra/time.h
+++ b/vppinfra/vppinfra/time.h
@@ -143,8 +143,18 @@ always_inline u64 clib_cpu_time_now (void)
return ((u64)h << 32) | l;
}
-#else
+#elif defined (__aarch64__)
+always_inline u64 clib_cpu_time_now (void)
+{
+ u64 tsc;
+
+ /* Works on Cavium ThunderX. Other platforms: YMMV */
+ asm volatile("mrs %0, cntvct_el0" : "=r" (tsc));
+ return tsc;
+}
+
+#else
#error "don't know how to read CPU time stamp"
#endif