From 5bed907740253386c619285ab5e549572b150946 Mon Sep 17 00:00:00 2001
From: Jonas Schievink <jonasschievink@gmail.com>
Date: Thu, 7 Jan 2021 18:12:21 +0100
Subject: Duplicate compiler fences around barrier instrs

---
 asm/inline.rs | 3 +++
 1 file changed, 3 insertions(+)

(limited to 'asm/inline.rs')

diff --git a/asm/inline.rs b/asm/inline.rs
index f2014f8..9150c9c 100644
--- a/asm/inline.rs
+++ b/asm/inline.rs
@@ -64,18 +64,21 @@ pub unsafe fn __delay(cyc: u32) {
 
 #[inline(always)]
 pub unsafe fn __dmb() {
+    compiler_fence(Ordering::SeqCst);
     asm!("dmb");
     compiler_fence(Ordering::SeqCst);
 }
 
 #[inline(always)]
 pub unsafe fn __dsb() {
+    compiler_fence(Ordering::SeqCst);
     asm!("dsb");
     compiler_fence(Ordering::SeqCst);
 }
 
 #[inline(always)]
 pub unsafe fn __isb() {
+    compiler_fence(Ordering::SeqCst);
     asm!("isb");
     compiler_fence(Ordering::SeqCst);
 }
-- 
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