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author | oliviermartin <oliviermartin@6f19259b-4bc3-4df7-8a09-765794883524> | 2012-08-31 16:24:01 +0000 |
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committer | oliviermartin <oliviermartin@6f19259b-4bc3-4df7-8a09-765794883524> | 2012-08-31 16:24:01 +0000 |
commit | 3f5aa1932f6a453981d9cab353b0340268b97808 (patch) | |
tree | 7955a5d47855744fbc0ec13934818bf42358ab1b /ArmPkg/Library/UncachedMemoryAllocationLib | |
parent | f1660263de092b5596a7e97f5359877eca9cb974 (diff) | |
download | edk2-platforms-3f5aa1932f6a453981d9cab353b0340268b97808.tar.xz |
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
Diffstat (limited to 'ArmPkg/Library/UncachedMemoryAllocationLib')
-rw-r--r-- | ArmPkg/Library/UncachedMemoryAllocationLib/UncachedMemoryAllocationLib.c | 2 |
1 files changed, 1 insertions, 1 deletions
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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