From 7e4b62290c8b21506b32fccdb01213ad179c078f Mon Sep 17 00:00:00 2001
From: David Yat Sin <77975354+dayatsin-amd@users.noreply.github.com>
Date: Thu, 13 Nov 2025 09:41:55 -0500
Subject: [PATCH] rocr: Switch back to legacy IPC (#1744)

Switch back to legacy IPC Implementation while we fix some race
conditions.
---
 projects/rocr-runtime/runtime/hsa-runtime/core/util/flag.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/projects/rocr-runtime/runtime/hsa-runtime/core/util/flag.h b/projects/rocr-runtime/runtime/hsa-runtime/core/util/flag.h
index a79d4e923b..39019837a8 100644
--- a/projects/rocr-runtime/runtime/hsa-runtime/core/util/flag.h
+++ b/projects/rocr-runtime/runtime/hsa-runtime/core/util/flag.h
@@ -242,7 +242,7 @@ class Flag {
     enable_mwaitx_ = (var == "1") ? true : false;
 
     var = os::GetEnvVar("HSA_ENABLE_IPC_MODE_LEGACY");
-    enable_ipc_mode_legacy_ = (var == "1") ? true : false;
+    enable_ipc_mode_legacy_ = (var == "0") ? false : true;
 
     if (os::IsEnvVarSet("HSA_PCS_MAX_DEVICE_BUFFER_SIZE")) {
       var = os::GetEnvVar("HSA_PCS_MAX_DEVICE_BUFFER_SIZE");