vppinfra: initial RISC-V support

[vpp.git] / src / vppinfra / time.h

diff --git a/src/vppinfra/time.h b/src/vppinfra/time.h
index 4d8997f..761dbed 100644 (file)
--- a/src/vppinfra/time.h
+++ b/src/vppinfra/time.h
@@ -192,6 +192,15 @@ clib_cpu_time_now (void)
   return result;
 }
 
+#elif defined(__riscv)
+
+always_inline u64
+clib_cpu_time_now (void)
+{
+  u64 result;
+  asm volatile("rdcycle %0\n" : "=r"(result));
+  return result;
+}
 #else
 #error "don't know how to read CPU time stamp"