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-rw-r--r--ArmPkg/Include/Library/ArmLib.h4
1 files changed, 4 insertions, 0 deletions
diff --git a/ArmPkg/Include/Library/ArmLib.h b/ArmPkg/Include/Library/ArmLib.h
index 26cb05def0..fd4f06d242 100644
--- a/ArmPkg/Include/Library/ArmLib.h
+++ b/ArmPkg/Include/Library/ArmLib.h
@@ -109,6 +109,10 @@ typedef enum {
#define GET_MPID(ClusterId, CoreId) (((ClusterId) << 8) | (CoreId))
#define PRIMARY_CORE_ID (PcdGet32(PcdArmPrimaryCore) & ARM_CORE_MASK)
+// The ARM Architecture Reference Manual for ARMv8-A defines up
+// to 7 levels of cache, L1 through L7.
+#define MAX_ARM_CACHE_LEVEL 7
+
UINTN
EFIAPI
ArmDataCacheLineLength (