diff options
Diffstat (limited to 'src/vendorcode/amd/agesa/f14/Proc/CPU/Feature/PreserveMailbox.c')
| -rw-r--r-- | src/vendorcode/amd/agesa/f14/Proc/CPU/Feature/PreserveMailbox.c | 218 |
1 files changed, 218 insertions, 0 deletions
diff --git a/src/vendorcode/amd/agesa/f14/Proc/CPU/Feature/PreserveMailbox.c b/src/vendorcode/amd/agesa/f14/Proc/CPU/Feature/PreserveMailbox.c new file mode 100644 index 0000000000..a68535774e --- /dev/null +++ b/src/vendorcode/amd/agesa/f14/Proc/CPU/Feature/PreserveMailbox.c @@ -0,0 +1,218 @@ +/* $NoKeywords:$ */ +/** + * @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: 37564 $ @e \$Date: 2010-09-08 05:03:38 +0800 (Wed, 08 Sep 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" +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; + 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) { + // 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, &FamilySpecificServices, StdHeader); + ASSERT (FamilySpecificServices != NULL); + NextRegister = FamilySpecificServices->RegisterList; + while (NextRegister->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->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)) { + // 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, &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; + 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 +}; |