From 10ed579c389f9fb6756e1219e10ada2644f1a690 Mon Sep 17 00:00:00 2001
From: Michael Scire <SciresM@gmail.com>
Date: Mon, 25 Oct 2021 13:38:52 -0700
Subject: [PATCH] kernel_ldr: bring initial cache flush in line with Nintendo

---
 libraries/libmesosphere/source/arch/arm64/kern_cpu.cpp | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/libraries/libmesosphere/source/arch/arm64/kern_cpu.cpp b/libraries/libmesosphere/source/arch/arm64/kern_cpu.cpp
index 6225f28a8..e370a76e6 100644
--- a/libraries/libmesosphere/source/arch/arm64/kern_cpu.cpp
+++ b/libraries/libmesosphere/source/arch/arm64/kern_cpu.cpp
@@ -384,11 +384,13 @@ namespace ams::kern::arch::arm64::cpu {
             /* Store cache from L1 up to (level of coherence - 1). */
             for (int level = 0; level < levels_of_coherency - 1; ++level) {
                 PerformCacheOperationBySetWayImpl<true>(level, StoreDataCacheLineBySetWayImpl);
+                DataSynchronizationBarrier();
             }
 
             /* Flush cache from (level of coherence - 1) down to L0. */
             for (int level = levels_of_coherency; level > 0; --level) {
                 PerformCacheOperationBySetWayImpl<true>(level - 1, FlushDataCacheLineBySetWayImpl);
+                DataSynchronizationBarrier();
             }
         }