ArmPkg/ArmLib: Added helper functions for accessing CPU ACTLR

Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Olivier Martin <olivier.martin@arm.com>



git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@15396 6f19259b-4bc3-4df7-8a09-765794883524

ArmPkg/Include/Library/ArmLib.h

@@ -625,4 +625,33 @@ ArmWriteHVBar (
   IN  UINTN   HypModeVectorBase
   );
 
+
+//
+// Helper functions for accessing CPU ACTLR
+//
+
+UINTN
+EFIAPI
+ArmReadCpuActlr (
+  VOID
+  );
+
+VOID
+EFIAPI
+ArmWriteCpuActlr (
+  IN  UINTN Val
+  );
+
+VOID
+EFIAPI
+ArmSetCpuActlrBit (
+  IN  UINTN    Bits
+  );
+
+VOID
+EFIAPI
+ArmUnsetCpuActlrBit (
+  IN  UINTN    Bits
+  );
+
 #endif // __ARM_LIB__