mirror of https://github.com/acidanthera/audk.git
77 lines
2.2 KiB
C
77 lines
2.2 KiB
C
|
/*++
|
||
|
|
|
||
|
|
Copyright (c) 2006, 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:
|
||
|
|
|
||
|
|
SwitchToCacheMode.c
|
||
|
|
|
||
|
|
Abstract:
|
||
|
|
|
||
|
|
Ipf CAR specific function used to switch to cache mode for the later memory access
|
||
|
|
|
||
|
|
Revision History
|
||
|
|
|
||
|
|
--*/
|
||
|
|
|
||
|
|
//
|
||
|
|
// Include common header file for this module.
|
||
|
|
//
|
||
|
|
#include "CommonHeader.h"
|
||
|
|
|
||
|
|
#include "IpfPeiMain.h"
|
||
|
|
#include "IpfCpuCore.i"
|
||
|
|
|
||
|
|
VOID
|
||
|
|
SwitchToCacheMode (
|
||
|
|
IN PEI_CORE_INSTANCE *CoreData
|
||
|
|
)
|
||
|
|
/*++
|
||
|
|
|
||
|
|
Routine Description:
|
||
|
|
|
||
|
|
Switch the PHIT pointers to cache mode after InstallPeiMemory in CAR.
|
||
|
|
|
||
|
|
Arguments:
|
||
|
|
|
||
|
|
CoreData - The PEI core Private Data
|
||
|
|
|
||
|
|
Returns:
|
||
|
|
|
||
|
|
--*/
|
||
|
|
{
|
||
|
|
EFI_HOB_HANDOFF_INFO_TABLE *Phit;
|
||
|
|
|
||
|
|
if (CoreData == NULL) {
|
||
|
|
//
|
||
|
|
// the first call with CoreData as NULL.
|
||
|
|
//
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
|
||
|
|
if ((GetHandOffStatus().r10 & 0xFF) == RecoveryFn) {
|
||
|
|
CoreData->StackBase = CoreData->StackBase & CACHE_MODE_ADDRESS_MASK;
|
||
|
|
CoreData->HobList.Raw = (UINT8 *)((UINTN)CoreData->HobList.Raw & CACHE_MODE_ADDRESS_MASK);
|
||
|
|
|
||
|
|
//
|
||
|
|
// Change the PHIT pointer value to cache mode
|
||
|
|
//
|
||
|
|
Phit = CoreData->HobList.HandoffInformationTable;
|
||
|
|
|
||
|
|
Phit->EfiMemoryTop = Phit->EfiMemoryTop & CACHE_MODE_ADDRESS_MASK;
|
||
|
|
Phit->EfiFreeMemoryTop = Phit->EfiFreeMemoryTop & CACHE_MODE_ADDRESS_MASK;
|
||
|
|
Phit->EfiMemoryBottom = Phit->EfiMemoryBottom & CACHE_MODE_ADDRESS_MASK;
|
||
|
|
Phit->EfiFreeMemoryBottom = Phit->EfiFreeMemoryBottom & CACHE_MODE_ADDRESS_MASK;
|
||
|
|
Phit->EfiEndOfHobList = Phit->EfiEndOfHobList & CACHE_MODE_ADDRESS_MASK;
|
||
|
|
}
|
||
|
|
|
||
|
|
return;
|
||
|
|
}
|