From 3f5aa1932f6a453981d9cab353b0340268b97808 Mon Sep 17 00:00:00 2001
From: oliviermartin <oliviermartin@6f19259b-4bc3-4df7-8a09-765794883524>
Date: Fri, 31 Aug 2012 16:24:01 +0000
Subject: ArmPkg: Changed Uncached System Memory from EFI_MEMORY_UC to
 EFI_MEMORY_WC

EFI_MEMORY_UC is mapped to Strongly Ordered memory while EFI_MEMORY_WC is
mapped to Uncached Normal/System memory.
This change improve performance while accessing uncached regions in the
System Memory.


Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Eugene Cohen <eugene@hp.com>
Reviewed-by: Olivier Martin <oliviermartin@arm.com



git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@13693 6f19259b-4bc3-4df7-8a09-765794883524
---
 .../Library/UncachedMemoryAllocationLib/UncachedMemoryAllocationLib.c   | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'ArmPkg/Library/UncachedMemoryAllocationLib')

diff --git a/ArmPkg/Library/UncachedMemoryAllocationLib/UncachedMemoryAllocationLib.c b/ArmPkg/Library/UncachedMemoryAllocationLib/UncachedMemoryAllocationLib.c
index 657268a288..4db93dbd2d 100644
--- a/ArmPkg/Library/UncachedMemoryAllocationLib/UncachedMemoryAllocationLib.c
+++ b/ArmPkg/Library/UncachedMemoryAllocationLib/UncachedMemoryAllocationLib.c
@@ -245,7 +245,7 @@ UncachedInternalAllocateAlignedPages (
     gAttributes = Descriptor.Attributes;
   }
   
-  Status = gDS->SetMemorySpaceAttributes (Memory, EFI_PAGES_TO_SIZE (Pages), EFI_MEMORY_UC);
+  Status = gDS->SetMemorySpaceAttributes (Memory, EFI_PAGES_TO_SIZE (Pages), EFI_MEMORY_WC);
   ASSERT_EFI_ERROR (Status);
   
   return (VOID *)(UINTN)Memory;
-- 
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