From f50018092c704a39ec3ef6f49fe8d565ad7b3d85 Mon Sep 17 00:00:00 2001
From: Astro <astro@spaceboyz.net>
Date: Thu, 18 Jun 2020 00:46:34 +0200
Subject: [PATCH] mmu: add early memory barrier to L1Table.update()

---
 libcortex_a9/src/mmu.rs | 1 +
 1 file changed, 1 insertion(+)

diff --git a/libcortex_a9/src/mmu.rs b/libcortex_a9/src/mmu.rs
index a039d15..a744b5f 100644
--- a/libcortex_a9/src/mmu.rs
+++ b/libcortex_a9/src/mmu.rs
@@ -368,6 +368,7 @@ impl L1Table {
         let result = f(&mut section);
         entry.set_section(section);
 
+        asm::dmb();
         cache::tlbiall();
         asm::dsb();
         asm::isb();