From 08b02efc6c490e98c79c49427e1f87c1ded49d9c Mon Sep 17 00:00:00 2001
From: Nekotekina <nekotekina@gmail.com>
Date: Tue, 18 Jan 2022 04:21:42 +0300
Subject: [PATCH] ARM: don't calibrate TSC, use cntfrq_el0 info

---
 rpcs3/util/sysinfo.cpp | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/rpcs3/util/sysinfo.cpp b/rpcs3/util/sysinfo.cpp
index 457cb0d417..8a440962f8 100755
--- a/rpcs3/util/sysinfo.cpp
+++ b/rpcs3/util/sysinfo.cpp
@@ -483,6 +483,12 @@ ullong utils::get_tsc_freq()
 {
 	static const ullong cal_tsc = []() -> ullong
 	{
+#ifdef ARCH_ARM64
+		u64 r = 0;
+		__asm__ volatile("mrs %0, cntfrq_el0" : "=r" (r));
+		return r;
+#endif
+
 		if (!has_invariant_tsc())
 			return 0;