| /** |
| * @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: 44323 $ @e \$Date: 2010-12-22 01:24:58 -0700 (Wed, 22 Dec 2010) $ |
| * |
| */ |
| /* |
| ****************************************************************************** |
| * |
| * 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" |
| #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; |
| PCI_ADDR *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) { |
| 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); |
| NextRegister = FamilySpecificServices->RegisterList; |
| while (NextRegister->AddressValue != ILLEGAL_SBDFO) { |
| ASSERT (RegisterEntryIndex < |
| (MAX_PRESERVE_REGISTER_ENTRIES * GetPlatformNumberOfSockets () * GetPlatformNumberOfModules ())); |
| MailboxRegister = BaseAddress; |
| MailboxRegister.Address.Function = NextRegister->Address.Function; |
| MailboxRegister.Address.Register = NextRegister->Address.Register; |
| LibAmdPciRead (AccessWidth32, MailboxRegister, &Value, StdHeader); |
| (* (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)) { |
| 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->AddressValue != ILLEGAL_SBDFO) { |
| ASSERT (RegisterEntryIndex < |
| (MAX_PRESERVE_REGISTER_ENTRIES * GetPlatformNumberOfSockets () * GetPlatformNumberOfModules ())); |
| MailboxRegister = BaseAddress; |
| MailboxRegister.Address.Function = NextRegister->Address.Function; |
| MailboxRegister.Address.Register = NextRegister->Address.Register; |
| if (FamilySpecificServices->IsZeroOnCold && (!IsWarmReset (StdHeader))) { |
| Value = 0; |
| } else { |
| Value = (* (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 |
| }; |
