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      1 /** @file
      2 
      3   Copyright (c) 2014, Intel Corporation. All rights reserved.<BR>
      4   This program and the accompanying materials
      5   are licensed and made available under the terms and conditions of the BSD License
      6   which accompanies this distribution.  The full text of the license may be found at
      7   http://opensource.org/licenses/bsd-license.php.
      8 
      9   THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
     10   WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
     11 
     12 **/
     13 
     14 #include <Uefi.h>
     15 #include <Library/BaseLib.h>
     16 #include <Library/CacheAsRamLib.h>
     17 
     18 /**
     19   This function disable CAR.
     20 
     21   @param[in] DisableCar       TRUE means use INVD, FALSE means use WBINVD
     22 
     23 **/
     24 VOID
     25 EFIAPI
     26 DisableCacheAsRam (
     27   IN BOOLEAN                   DisableCar
     28   )
     29 {
     30   //
     31   // Disable CAR
     32   //
     33 
     34   if (DisableCar) {
     35     AsmInvd ();
     36   } else {
     37     AsmWbinvd();
     38   }
     39 
     40   return ;
     41 }
     42