From 25f3dc305f5d2f564e2f664446518845cdc1f0fb Mon Sep 17 00:00:00 2001
From: Ramesh Errabolu <Ramesh.Errabolu@amd.com>
Date: Wed, 24 Mar 2021 21:21:07 -0500
Subject: [PATCH] Override Cpu-Gpu link-weight for Alebaran until a proper fix
 is available

Change-Id: I1fbc38b788f71cc9c9fc62295223286004689bf9
---
 runtime/hsa-runtime/core/runtime/amd_topology.cpp | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/runtime/hsa-runtime/core/runtime/amd_topology.cpp b/runtime/hsa-runtime/core/runtime/amd_topology.cpp
index 2855e33e4e..6b6a308583 100644
--- a/runtime/hsa-runtime/core/runtime/amd_topology.cpp
+++ b/runtime/hsa-runtime/core/runtime/amd_topology.cpp
@@ -207,7 +207,9 @@ void RegisterLinkInfo(uint32_t node_id, uint32_t num_link) {
         link_info.atomic_support_64bit = true;
         link_info.coherent_support = true;
         if (core::Runtime::runtime_singleton_->flag().patch_xgmi_link_weight()) {
-          io_link.Weight = 15;
+          if (io_link.Weight == 0) {
+            io_link.Weight = 15;
+          }
         }
         break;
       default: