blob: 35705b2e4002c2aba81a2202604e5a0a6d34f712 [file] [log] [blame]
/* $NoKeywords:$ */
/**
* @file
*
* AMD AGESA CPU Preserve Registers used for AP Mailbox.
*
* Save and Restore the normal feature content of the registers being used for
* the AP Mailbox.
*
* @xrefitem bom "File Content Label" "Release Content"
* @e project: AGESA
* @e sub-project: CPU/Feature
* @e \$Revision: 50096 $ @e \$Date: 2011-04-02 06:17:10 +0800 (Sat, 02 Apr 2011) $
*
*/
/*
******************************************************************************
*
* Copyright (c) 2011, Advanced Micro Devices, Inc.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* * Neither the name of Advanced Micro Devices, Inc. nor the names of
* its contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL ADVANCED MICRO DEVICES, INC. BE LIABLE FOR ANY
* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
******************************************************************************
*/
/*----------------------------------------------------------------------------------------
* M O D U L E S U S E D
*----------------------------------------------------------------------------------------
*/
#include "AGESA.h"
#include "amdlib.h"
#include "Ids.h"
#include "Topology.h"
#include "GeneralServices.h"
#include "OptionMultiSocket.h"
#include "cpuRegisters.h"
#include "cpuApicUtilities.h"
#include "cpuServices.h"
#include "cpuFamilyTranslation.h"
#include "cpuFeatures.h"
#include "PreserveMailbox.h"
#include "heapManager.h"
#include "Filecode.h"
CODE_GROUP (G1_PEICC)
RDATA_GROUP (G1_PEICC)
#define FILECODE PROC_CPU_FEATURE_PRESERVEMAILBOX_FILECODE
/*----------------------------------------------------------------------------------------
* D E F I N I T I O N S A N D M A C R O S
*----------------------------------------------------------------------------------------
*/
/*----------------------------------------------------------------------------------------
* T Y P E D E F S A N D S T R U C T U R E S
*----------------------------------------------------------------------------------------
*/
/*----------------------------------------------------------------------------------------
* P R O T O T Y P E S O F L O C A L F U N C T I O N S
*----------------------------------------------------------------------------------------
*/
/*----------------------------------------------------------------------------------------
* E X P O R T E D F U N C T I O N S
*----------------------------------------------------------------------------------------
*/
extern CPU_FAMILY_SUPPORT_TABLE PreserveMailboxFamilyServiceTable;
/*---------------------------------------------------------------------------------------*/
/**
* The contents of the mailbox registers should always be preserved.
*
* @param[in] PlatformConfig Contains the runtime modifiable feature input data.
* @param[in] StdHeader Config Handle for library, services.
*
* @retval TRUE Always TRUE
*
*/
BOOLEAN
STATIC
IsPreserveAroundMailboxEnabled (
IN PLATFORM_CONFIGURATION *PlatformConfig,
IN AMD_CONFIG_PARAMS *StdHeader
)
{
return TRUE;
}
/*---------------------------------------------------------------------------------------*/
/**
* Save and Restore or Initialize the content of the mailbox registers.
*
* The registers used for AP mailbox should have the content related to their function
* preserved.
*
* @param[in] EntryPoint Timepoint designator.
* @param[in] PlatformConfig Contains the runtime modifiable feature input data.
* @param[in] StdHeader Config Handle for library, services.
*
* @return AGESA_SUCCESS Always succeeds.
*
*/
AGESA_STATUS
STATIC
PreserveMailboxes (
IN UINT64 EntryPoint,
IN PLATFORM_CONFIGURATION *PlatformConfig,
IN AMD_CONFIG_PARAMS *StdHeader
)
{
PRESERVE_MAILBOX_FAMILY_SERVICES *FamilySpecificServices;
UINT32 Socket;
UINT32 Module;
PCI_ADDR BaseAddress;
PCI_ADDR MailboxRegister;
PRESERVE_MAILBOX_FAMILY_REGISTER *NextRegister;
AGESA_STATUS IgnoredStatus;
AGESA_STATUS HeapStatus;
UINT32 Value;
ALLOCATE_HEAP_PARAMS AllocateParams;
LOCATE_HEAP_PTR LocateParams;
UINT32 RegisterEntryIndex;
BaseAddress.AddressValue = ILLEGAL_SBDFO;
if (EntryPoint == CPU_FEAT_AFTER_COHERENT_DISCOVERY) {
// The save step. Save either the register content or zero (for cold boot, if family specifies that).
AllocateParams.BufferHandle = PRESERVE_MAIL_BOX_HANDLE;
AllocateParams.RequestedBufferSize = (sizeof (UINT32) * (MAX_PRESERVE_REGISTER_ENTRIES * (MAX_SOCKETS * MAX_DIES)));
AllocateParams.Persist = HEAP_SYSTEM_MEM;
HeapStatus = HeapAllocateBuffer (&AllocateParams, StdHeader);
ASSERT ((HeapStatus == AGESA_SUCCESS) && (AllocateParams.BufferPtr != NULL));
LibAmdMemFill (AllocateParams.BufferPtr, 0xFF, AllocateParams.RequestedBufferSize, StdHeader);
RegisterEntryIndex = 0;
for (Socket = 0; Socket < GetPlatformNumberOfSockets (); Socket++) {
for (Module = 0; Module < GetPlatformNumberOfModules (); Module++) {
if (GetPciAddress (StdHeader, Socket, Module, &BaseAddress, &IgnoredStatus)) {
GetFeatureServicesOfSocket (&PreserveMailboxFamilyServiceTable, Socket, (const VOID **)&FamilySpecificServices, StdHeader);
ASSERT (FamilySpecificServices != NULL);
NextRegister = FamilySpecificServices->RegisterList;
while (NextRegister->Register.AddressValue != ILLEGAL_SBDFO) {
ASSERT (RegisterEntryIndex <
(MAX_PRESERVE_REGISTER_ENTRIES * GetPlatformNumberOfSockets () * GetPlatformNumberOfModules ()));
if (FamilySpecificServices->IsZeroOnCold && (!IsWarmReset (StdHeader))) {
Value = 0;
} else {
MailboxRegister = BaseAddress;
MailboxRegister.Address.Function = NextRegister->Register.Address.Function;
MailboxRegister.Address.Register = NextRegister->Register.Address.Register;
LibAmdPciRead (AccessWidth32, MailboxRegister, &Value, StdHeader);
Value &= NextRegister->Mask;
}
(* (MAILBOX_REGISTER_SAVE_ENTRY) AllocateParams.BufferPtr) [RegisterEntryIndex] = Value;
RegisterEntryIndex++;
NextRegister++;
}
}
}
}
} else if ((EntryPoint == CPU_FEAT_INIT_LATE_END) || (EntryPoint == CPU_FEAT_AFTER_RESUME_MTRR_SYNC)) {
// The restore step. Just write out the saved content in the buffer.
LocateParams.BufferHandle = PRESERVE_MAIL_BOX_HANDLE;
HeapStatus = HeapLocateBuffer (&LocateParams, StdHeader);
ASSERT ((HeapStatus == AGESA_SUCCESS) && (LocateParams.BufferPtr != NULL));
RegisterEntryIndex = 0;
for (Socket = 0; Socket < GetPlatformNumberOfSockets (); Socket++) {
for (Module = 0; Module < GetPlatformNumberOfModules (); Module++) {
if (GetPciAddress (StdHeader, Socket, Module, &BaseAddress, &IgnoredStatus)) {
GetFeatureServicesOfSocket (&PreserveMailboxFamilyServiceTable, Socket, (const VOID **)&FamilySpecificServices, StdHeader);
NextRegister = FamilySpecificServices->RegisterList;
while (NextRegister->Register.AddressValue != ILLEGAL_SBDFO) {
ASSERT (RegisterEntryIndex <
(MAX_PRESERVE_REGISTER_ENTRIES * GetPlatformNumberOfSockets () * GetPlatformNumberOfModules ()));
MailboxRegister = BaseAddress;
MailboxRegister.Address.Function = NextRegister->Register.Address.Function;
MailboxRegister.Address.Register = NextRegister->Register.Address.Register;
LibAmdPciRead (AccessWidth32, MailboxRegister, &Value, StdHeader);
Value = ((Value & ~NextRegister->Mask) | (* (MAILBOX_REGISTER_SAVE_ENTRY) LocateParams.BufferPtr) [RegisterEntryIndex]);
LibAmdPciWrite (AccessWidth32, MailboxRegister, &Value, StdHeader);
RegisterEntryIndex++;
NextRegister++;
}
}
}
}
HeapStatus = HeapDeallocateBuffer (PRESERVE_MAIL_BOX_HANDLE, StdHeader);
}
return AGESA_SUCCESS;
}
CONST CPU_FEATURE_DESCRIPTOR ROMDATA CpuFeaturePreserveAroundMailbox =
{
PreserveAroundMailbox,
(CPU_FEAT_AFTER_COHERENT_DISCOVERY | CPU_FEAT_INIT_LATE_END | CPU_FEAT_AFTER_RESUME_MTRR_SYNC),
IsPreserveAroundMailboxEnabled,
PreserveMailboxes
};