From 8d8eb2cb1d7b0a7b1b0298dde42dd0d20f7e302d Mon Sep 17 00:00:00 2001
From: Luca Colagrande <luca.colagrande3@gmail.com>
Date: Tue, 7 Nov 2023 11:46:15 +0100
Subject: [PATCH] sw: Add fence ensuring Snitch entry point is programmed

---
 target/sim/sw/host/apps/offload/src/offload.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/target/sim/sw/host/apps/offload/src/offload.c b/target/sim/sw/host/apps/offload/src/offload.c
index dab7df9b1..bcf6a8234 100644
--- a/target/sim/sw/host/apps/offload/src/offload.c
+++ b/target/sim/sw/host/apps/offload/src/offload.c
@@ -15,6 +15,10 @@ int main() {
     // Program Snitch entry point and communication buffer
     program_snitches();
 
+    // Compiler fence to ensure Snitch entry point is
+    // programmed before Snitches are woken up
+    asm volatile("" ::: "memory");
+
     // Start Snitches
     wakeup_snitches_cl();