--- /dev/null
+/**
+ * @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
+};
projects / coreboot.git / blobdiff