From ba3ed154863d1acd0996178beaf3a2bc693b938c Mon Sep 17 00:00:00 2001
From: sahil <sahil@arm.com>
Date: Wed, 20 Apr 2022 12:24:41 +0530
Subject: [PATCH] Platform/ARM/N1Sdp: Fix RemoteDdrSize cast

RemoteDdrSize calculation wraps around when booting N1Sdp in
multichip mode. Casting it to UINT64 to fix the issue.

Upstream-Status: Pending
Signed-off-by: Adam Johnston <adam.johnston@arm.com>
Signed-off-by: Xueliang Zhong <xueliang.zhong@arm.com>
Signed-off-by: sahil <sahil@arm.com>
Change-Id: Ic51269a8d67669684a5f056701cfbef6beb23da2
---
 .../ConfigurationManagerDxe/ConfigurationManager.c              | 2 +-
 Silicon/ARM/NeoverseN1Soc/Library/PlatformLib/PlatformLibMem.c  | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/Platform/ARM/N1Sdp/ConfigurationManager/ConfigurationManagerDxe/ConfigurationManager.c b/Platform/ARM/N1Sdp/ConfigurationManager/ConfigurationManagerDxe/ConfigurationManager.c
index c15020f5..b11c0425 100644
--- a/Platform/ARM/N1Sdp/ConfigurationManager/ConfigurationManagerDxe/ConfigurationManager.c
+++ b/Platform/ARM/N1Sdp/ConfigurationManager/ConfigurationManagerDxe/ConfigurationManager.c
@@ -1254,7 +1254,7 @@ InitializePlatformRepository (
   PlatRepoInfo->MemAffInfo[LOCAL_DDR_REGION2].Length = Dram2Size;
 
   if (PlatInfo->MultichipMode == 1) {
-    RemoteDdrSize = ((PlatInfo->RemoteDdrSize - 2) * SIZE_1GB);
+    RemoteDdrSize = ((UINT64)(PlatInfo->RemoteDdrSize - 2) * SIZE_1GB);
 
     // Update Remote DDR Region1
     PlatRepoInfo->MemAffInfo[REMOTE_DDR_REGION1].ProximityDomain = 1;
diff --git a/Silicon/ARM/NeoverseN1Soc/Library/PlatformLib/PlatformLibMem.c b/Silicon/ARM/NeoverseN1Soc/Library/PlatformLib/PlatformLibMem.c
index 1d53ec75..5cacd437 100644
--- a/Silicon/ARM/NeoverseN1Soc/Library/PlatformLib/PlatformLibMem.c
+++ b/Silicon/ARM/NeoverseN1Soc/Library/PlatformLib/PlatformLibMem.c
@@ -157,7 +157,7 @@ ArmPlatformGetVirtualMemoryMap (
     DramBlock2Size);
 
   if (PlatInfo->MultichipMode == 1) {
-    RemoteDdrSize = ((PlatInfo->RemoteDdrSize - 2) * SIZE_1GB);
+    RemoteDdrSize = ((UINT64)(PlatInfo->RemoteDdrSize - 2) * SIZE_1GB);
 
     BuildResourceDescriptorHob (
       EFI_RESOURCE_SYSTEM_MEMORY,
