EdkCompatibilityPkg/Foundation/Library/Pei/PeiLib/Ipf/Processor.c

   1 /*++
   2
   3 Copyright (c) 2004, 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 Module Name:
  13
  14     Processor.c
  15
  16 Abstract:
  17
  18 --*/
  19
  20 #include "Tiano.h"
  21 #include "EfiJump.h"
  22 #include "PeiHob.h"
  23 #include EFI_GUID_DEFINITION (PeiFlushInstructionCache)
  24 #include EFI_GUID_DEFINITION (PeiTransferControl)
  25
  26 EFI_STATUS
  27 WinNtFlushInstructionCacheFlush (
  28   IN EFI_PEI_FLUSH_INSTRUCTION_CACHE_PROTOCOL   *This,
  29   IN EFI_PHYSICAL_ADDRESS                       Start,
  30   IN UINT64                                     Length
  31   );
  32
  33 EFI_PEI_TRANSFER_CONTROL_PROTOCOL         mTransferControl = {
  34   (EFI_PEI_TRANSFER_CONTROL_SET_JUMP)  SetJump,
  35   (EFI_PEI_TRANSFER_CONTROL_LONG_JUMP) LongJump,
  36   sizeof (EFI_JUMP_BUFFER)
  37 };
  38
  39 EFI_PEI_FLUSH_INSTRUCTION_CACHE_PROTOCOL  mFlushInstructionCache = {
  40   WinNtFlushInstructionCacheFlush
  41 };
  42
  43 EFI_STATUS
  44 InstallEfiPeiTransferControl (
  45   IN OUT EFI_PEI_TRANSFER_CONTROL_PROTOCOL **This
  46   )
  47 /*++
  48
  49 Routine Description:
  50
  51   Installs the pointer to the transfer control mechanism
  52
  53 Arguments:
  54
  55   This       - Pointer to transfer control mechanism.
  56
  57 Returns:
  58
  59   EFI_SUCCESS     - Successfully installed.
  60
  61 --*/
  62 {
  63   *This = &mTransferControl;
  64   return EFI_SUCCESS;
  65 }
  66
  67 EFI_STATUS
  68 InstallEfiPeiFlushInstructionCache (
  69   IN OUT EFI_PEI_FLUSH_INSTRUCTION_CACHE_PROTOCOL  **This
  70   )
  71 /*++
  72
  73 Routine Description:
  74
  75   Installs the pointer to the flush instruction cache mechanism
  76
  77 Arguments:
  78
  79   This       - Pointer to flush instruction cache mechanism.
  80
  81 Returns:
  82
  83   EFI_SUCCESS     - Successfully installed
  84
  85 --*/
  86 {
  87   *This = &mFlushInstructionCache;
  88   return EFI_SUCCESS;
  89 }
  90
  91 EFI_STATUS
  92 WinNtFlushInstructionCacheFlush (
  93   IN EFI_PEI_FLUSH_INSTRUCTION_CACHE_PROTOCOL   *This,
  94   IN EFI_PHYSICAL_ADDRESS                       Start,
  95   IN UINT64                                     Length
  96   )
  97 /*++
  98
  99 Routine Description:
 100
 101   This routine would provide support for flushing the CPU instruction cache.
 102
 103 Arguments:
 104
 105   This      - Pointer to CPU Architectural Protocol interface
 106   Start     - Start adddress in memory to flush
 107   Length    - Length of memory to flush
 108
 109 Returns:
 110
 111   Status
 112     EFI_SUCCESS
 113
 114 --*/
 115 {
 116   RtPioICacheFlush ((UINT8 *) Start, (UINTN) Length);
 117   return EFI_SUCCESS;
 118 }