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-rw-r--r--ArmPkg/Include/Library/ArmGicLib.h3
1 files changed, 3 insertions, 0 deletions
diff --git a/ArmPkg/Include/Library/ArmGicLib.h b/ArmPkg/Include/Library/ArmGicLib.h
index 4f0164ab88..d00159b356 100644
--- a/ArmPkg/Include/Library/ArmGicLib.h
+++ b/ArmPkg/Include/Library/ArmGicLib.h
@@ -80,6 +80,9 @@ typedef enum {
#define ARM_GIC_ICCIIDR_GET_REVISION(IccIidr) (((IccIidr) >> 12) & 0xF)
#define ARM_GIC_ICCIIDR_GET_IMPLEMENTER(IccIidr) ((IccIidr) & 0xFFF)
+// Bit Mask for
+#define ARM_GIC_ICCIAR_ACKINTID 0x3FF
+
ARM_GIC_ARCH_REVISION
EFIAPI
ArmGicGetSupportedArchRevision (