From c653fc2a91a946ea249e5d6161bca84f6c824f09 Mon Sep 17 00:00:00 2001
From: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Date: Mon, 9 Nov 2015 13:28:17 +0000
Subject: ArmPkg/ArmLib: add accessor function for Cache Writeback Granule

Add a function to ArmLib that provides access to the Cache Writeback
Granule (CWG) field in CTR_EL0. This information is required when
performing non-coherent DMA.

Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Reviewed-by: Mark Rutland <mark.rutland@arm.com>
Reviewed-by: Leif Lindholm <leif.lindholm@linaro.org>

git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@18758 6f19259b-4bc3-4df7-8a09-765794883524
---
 ArmPkg/Include/Library/ArmLib.h | 6 ++++++
 1 file changed, 6 insertions(+)

(limited to 'ArmPkg/Include/Library')

diff --git a/ArmPkg/Include/Library/ArmLib.h b/ArmPkg/Include/Library/ArmLib.h
index 2059a67bbf..a328146b69 100644
--- a/ArmPkg/Include/Library/ArmLib.h
+++ b/ArmPkg/Include/Library/ArmLib.h
@@ -114,6 +114,12 @@ ArmInstructionCacheLineLength (
   VOID
   );
 
+UINTN
+EFIAPI
+ArmCacheWritebackGranule (
+  VOID
+  );
+
 UINTN
 EFIAPI
 ArmIsArchTimerImplemented (
-- 
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