diff options
Diffstat (limited to 'EDK/Foundation/Library/Pei/PeiLib/ia32/Processor.c')
-rw-r--r-- | EDK/Foundation/Library/Pei/PeiLib/ia32/Processor.c | 140 |
1 files changed, 140 insertions, 0 deletions
diff --git a/EDK/Foundation/Library/Pei/PeiLib/ia32/Processor.c b/EDK/Foundation/Library/Pei/PeiLib/ia32/Processor.c new file mode 100644 index 0000000..fcdd4bf --- /dev/null +++ b/EDK/Foundation/Library/Pei/PeiLib/ia32/Processor.c @@ -0,0 +1,140 @@ +/*++ + +Copyright (c) 2004 - 2005, Intel Corporation +All rights reserved. This program and the accompanying materials +are licensed and made available under the terms and conditions of the BSD License +which accompanies this distribution. The full text of the license may be found at +http://opensource.org/licenses/bsd-license.php + +THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS, +WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED. + +Module Name: + + Processor.c + +Abstract: + +--*/ + +#include "Tiano.h" +#include "EfiJump.h" +#include EFI_GUID_DEFINITION (PeiFlushInstructionCache) +#include EFI_GUID_DEFINITION (PeiTransferControl) + +// +// Prototypes +// +EFI_STATUS +EFIAPI +TransferControlSetJump ( + IN EFI_PEI_TRANSFER_CONTROL_PROTOCOL *This, + IN EFI_JUMP_BUFFER *Jump + ); + +EFI_STATUS +EFIAPI +TransferControlLongJump ( + IN EFI_PEI_TRANSFER_CONTROL_PROTOCOL *This, + IN EFI_JUMP_BUFFER *Jump + ); + +EFI_STATUS +EFIAPI +FlushInstructionCacheFlush ( + IN EFI_PEI_FLUSH_INSTRUCTION_CACHE_PROTOCOL *This, + IN EFI_PHYSICAL_ADDRESS Start, + IN UINT64 Length + ); + +// +// Table declarations +// +EFI_PEI_TRANSFER_CONTROL_PROTOCOL mTransferControl = { + TransferControlSetJump, + TransferControlLongJump, + sizeof (EFI_JUMP_BUFFER) +}; + +EFI_PEI_FLUSH_INSTRUCTION_CACHE_PROTOCOL mFlushInstructionCache = { + FlushInstructionCacheFlush +}; + + +EFI_STATUS +InstallEfiPeiTransferControl ( + IN OUT EFI_PEI_TRANSFER_CONTROL_PROTOCOL **This + ) +/*++ + +Routine Description: + + Installs the pointer to the transfer control mechanism + +Arguments: + + This - Pointer to transfer control mechanism. + +Returns: + + EFI_SUCCESS - Successfully installed. + +--*/ +{ + *This = &mTransferControl; + return EFI_SUCCESS; +} + +EFI_STATUS +InstallEfiPeiFlushInstructionCache ( + IN OUT EFI_PEI_FLUSH_INSTRUCTION_CACHE_PROTOCOL **This + ) +/*++ + +Routine Description: + + Installs the pointer to the flush instruction cache mechanism + +Arguments: + + This - Pointer to flush instruction cache mechanism. + +Returns: + + EFI_SUCCESS - Successfully installed + +--*/ +{ + *This = &mFlushInstructionCache; + return EFI_SUCCESS; +} + +EFI_STATUS +EFIAPI +FlushInstructionCacheFlush ( + IN EFI_PEI_FLUSH_INSTRUCTION_CACHE_PROTOCOL *This, + IN EFI_PHYSICAL_ADDRESS Start, + IN UINT64 Length + ) +/*++ + +Routine Description: + + This routine would provide support for flushing the CPU instruction cache. + In the case of IA32, this flushing is not necessary and is thus not implemented. + +Arguments: + + This - Pointer to CPU Architectural Protocol interface + Start - Start adddress in memory to flush + Length - Length of memory to flush + +Returns: + + Status + EFI_SUCCESS + +--*/ +{ + return EFI_SUCCESS; +} |