From 3013350e2ddc35715ab353bf9f129f241233410c Mon Sep 17 00:00:00 2001
From: Vishwanatha Subbanna <vishwa@linux.vnet.ibm.com>
Date: Tue, 24 Aug 2021 17:07:44 +0530
Subject: [PATCH] Add support for s390x platform in toku_time

Signed-off-by: Vishwanatha Subbanna <vishwa@linux.vnet.ibm.com>
---
https://bugzilla.redhat.com/show_bug.cgi?id=1997426

 .../lock/range/range_tree/lib/portability/toku_time.h         | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/utilities/transactions/lock/range/range_tree/lib/portability/toku_time.h b/utilities/transactions/lock/range/range_tree/lib/portability/toku_time.h
index 4425a4a2e57..225e3fa7211 100644
--- a/utilities/transactions/lock/range/range_tree/lib/portability/toku_time.h
+++ b/utilities/transactions/lock/range/range_tree/lib/portability/toku_time.h
@@ -133,6 +133,10 @@ static inline tokutime_t toku_time_now(void) {
   return result;
 #elif defined(__powerpc__)
   return __ppc_get_timebase();
+#elif defined(__s390x__)
+  uint64_t result;
+  asm volatile("stckf %0" : "=Q"(result) : : "cc");
+  return result;
 #else
 #error No timer implementation for this platform
 #endif