From f9aedeaeadd84f2c5e949a148e82d2a18d1e45d8 Mon Sep 17 00:00:00 2001
From: test <test@example.com>
Date: Thu, 25 Apr 2024 07:45:52 +0000
Subject: [PATCH] mvapich2 2.3.6 add support for loongarch64

---
 src/mpid/ch3/channels/common/include/mv2_clock.h | 14 ++++++++++++++
 1 file changed, 14 insertions(+)

diff --git a/src/mpid/ch3/channels/common/include/mv2_clock.h b/src/mpid/ch3/channels/common/include/mv2_clock.h
index 77552c4..0ad6b43 100644
--- a/src/mpid/ch3/channels/common/include/mv2_clock.h
+++ b/src/mpid/ch3/channels/common/include/mv2_clock.h
@@ -81,6 +81,20 @@ static inline cycles_t get_cycles()
     asm volatile ("mov %0=ar.itc" : "=r" (ret));
     return ret;
 }
+#elif defined(__loongarch64)
+typedef unsigned long cycles_t;
+static inline cycles_t get_cycles()
+{
+	int rID = 0;
+        cycles_t val = 0;
+
+        __asm__ __volatile__(
+                "rdtime.d %0, %1 \n\t"
+                : "=r"(val), "=r"(rID)
+                :
+                );
+        return val;
+}
 #elif defined(__aarch64__)
 typedef unsigned long cycles_t;
 static inline cycles_t get_cycles()
-- 
2.43.0

