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+/* $NoKeywords:$ */
+/**
+ * @file
+ *
+ * AMD CPU Power Management Multisocket Functions.
+ *
+ * Contains code for doing power management for multisocket CPUs
+ *
+ * @xrefitem bom "File Content Label" "Release Content"
+ * @e project: AGESA
+ * @e sub-project: CPU
+ * @e \$Revision: 35136 $ @e \$Date: 2010-07-16 11:29:48 +0800 (Fri, 16 Jul 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 "cpuRegisters.h"
+#include "GeneralServices.h"
+#include "cpuServices.h"
+#include "cpuApicUtilities.h"
+#include "cpuFamilyTranslation.h"
+#include "cpuPowerMgmtSystemTables.h"
+#include "cpuPowerMgmtMultiSocket.h"
+#include "GeneralServices.h"
+#include "Filecode.h"
+CODE_GROUP (G1_PEICC)
+RDATA_GROUP (G1_PEICC)
+
+#define FILECODE PROC_CPU_CPUPOWERMGMTMULTISOCKET_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
+ *----------------------------------------------------------------------------------------
+ */
+VOID
+STATIC
+GetNextEvent (
+ IN OUT VOID *EventLogEntryPtr,
+ IN AMD_CONFIG_PARAMS *StdHeader
+ );
+
+/*----------------------------------------------------------------------------------------
+ * E X P O R T E D F U N C T I O N S
+ *----------------------------------------------------------------------------------------
+ */
+
+/*---------------------------------------------------------------------------------------*/
+/**
+ * Multisocket BSC call to start all system core 0s to perform a standard AP_TASK.
+ *
+ * This function loops through all possible socket locations, starting core 0 of
+ * each populated socket to perform the passed in AP_TASK. After starting all
+ * other core 0s, the BSC will perform the AP_TASK as well. This must be run by
+ * the system BSC only.
+ *
+ * @param[in] TaskPtr Function descriptor
+ * @param[in] StdHeader Config handle for library and services
+ * @param[in] ConfigParams AMD entry point's CPU parameter structure
+ *
+ */
+VOID
+RunCodeOnAllSystemCore0sMulti (
+ IN AP_TASK *TaskPtr,
+ IN AMD_CONFIG_PARAMS *StdHeader,
+ IN VOID *ConfigParams
+ )
+{
+ UINT32 BscSocket;
+ UINT32 BscModule;
+ UINT32 BscCore;
+ UINT8 Socket;
+ UINT32 NumberOfSockets;
+ AGESA_STATUS DummyStatus;
+
+ ASSERT (IsBsp (StdHeader, &DummyStatus));
+
+ NumberOfSockets = GetPlatformNumberOfSockets ();
+
+ IdentifyCore (StdHeader, &BscSocket, &BscModule, &BscCore, &DummyStatus);
+
+ for (Socket = 0; Socket < NumberOfSockets; Socket++) {
+ if (Socket != BscSocket) {
+ if (IsProcessorPresent (Socket, StdHeader)) {
+ ApUtilRunCodeOnSocketCore (Socket, 0, TaskPtr, StdHeader);
+ }
+ }
+ }
+ ApUtilTaskOnExecutingCore (TaskPtr, StdHeader, ConfigParams);
+}
+
+
+/*---------------------------------------------------------------------------------------*/
+/**
+ * Multisocket BSC call to determine the maximum number of steps that any single
+ * processor needs to execute.
+ *
+ * This function loops through all possible socket locations, gathering the number
+ * of power management steps each populated socket requires, and returns the
+ * highest number.
+ *
+ * @param[out] NumSystemSteps Maximum number of system steps required
+ * @param[in] StdHeader Config handle for library and services
+ *
+ */
+VOID
+GetNumberOfSystemPmStepsPtrMulti (
+ OUT UINT8 *NumSystemSteps,
+ IN AMD_CONFIG_PARAMS *StdHeader
+ )
+{
+ UINT8 NumberOfSteps;
+ UINT32 NumberOfSockets;
+ UINT32 Socket;
+ SYS_PM_TBL_STEP *Ignored;
+ CPU_SPECIFIC_SERVICES *FamilySpecificServices;
+
+ NumberOfSockets = GetPlatformNumberOfSockets ();
+ *NumSystemSteps = 0;
+
+ for (Socket = 0; Socket < NumberOfSockets; Socket++) {
+ if (IsProcessorPresent (Socket, StdHeader)) {
+ GetCpuServicesOfSocket (Socket, &FamilySpecificServices, StdHeader);
+ FamilySpecificServices->GetSysPmTableStruct (FamilySpecificServices, &Ignored, &NumberOfSteps, StdHeader);
+ if (NumberOfSteps > *NumSystemSteps) {
+ *NumSystemSteps = NumberOfSteps;
+ }
+ }
+ }
+}
+
+
+/*---------------------------------------------------------------------------------------*/
+/**
+ * Multisocket call to determine the frequency that the northbridges must run.
+ *
+ * This function loops through all possible socket locations, comparing the
+ * maximum NB frequencies to determine the slowest. This function also
+ * determines if all coherent NB frequencies are equivalent.
+ *
+ * @param[in] NbPstate NB P-state number to check (0 = fastest)
+ * @param[in] PlatformConfig Platform profile/build option config structure.
+ * @param[out] SystemNbCofNumerator NB frequency numerator for the system in MHz
+ * @param[out] SystemNbCofDenominator NB frequency denominator for the system
+ * @param[out] SystemNbCofsMatch Whether or not all NB frequencies are equivalent
+ * @param[out] NbPstateIsEnabledOnAllCPUs Whether or not NbPstate is valid on all CPUs
+ * @param[in] StdHeader Config handle for library and services
+ *
+ * @retval TRUE At least one processor has NbPstate enabled.
+ * @retval FALSE NbPstate is disabled on all CPUs
+ *
+ */
+BOOLEAN
+GetSystemNbCofMulti (
+ IN UINT32 NbPstate,
+ IN PLATFORM_CONFIGURATION *PlatformConfig,
+ OUT UINT32 *SystemNbCofNumerator,
+ OUT UINT32 *SystemNbCofDenominator,
+ OUT BOOLEAN *SystemNbCofsMatch,
+ OUT BOOLEAN *NbPstateIsEnabledOnAllCPUs,
+ IN AMD_CONFIG_PARAMS *StdHeader
+ )
+{
+ UINT32 Socket;
+ UINT8 Module;
+ UINT32 CurrentNbCof;
+ UINT32 CurrentDivisor;
+ UINT32 CurrentFreq;
+ UINT32 LowFrequency;
+ UINT32 Ignored32;
+ BOOLEAN FirstCofNotFound;
+ BOOLEAN NbPstateDisabled;
+ BOOLEAN IsNbPstateEnabledOnAny;
+ PCI_ADDR PciAddress;
+ AGESA_STATUS Ignored;
+ CPU_SPECIFIC_SERVICES *FamilySpecificServices;
+
+ // Find the slowest NB COF in the system & whether or not all are equivalent
+ LowFrequency = 0xFFFFFFFF;
+ *SystemNbCofsMatch = TRUE;
+ *NbPstateIsEnabledOnAllCPUs = FALSE;
+ IsNbPstateEnabledOnAny = FALSE;
+ FirstCofNotFound = TRUE;
+ NbPstateDisabled = FALSE;
+ for (Socket = 0; Socket < GetPlatformNumberOfSockets (); Socket++) {
+ if (IsProcessorPresent (Socket, StdHeader)) {
+ GetCpuServicesOfSocket (Socket, &FamilySpecificServices, StdHeader);
+ for (Module = 0; Module < GetPlatformNumberOfModules (); Module++) {
+ if (GetPciAddress (StdHeader, Socket, Module, &PciAddress, &Ignored)) {
+ break;
+ }
+ }
+ if (FamilySpecificServices->GetNbPstateInfo (FamilySpecificServices,
+ PlatformConfig,
+ &PciAddress,
+ NbPstate,
+ &CurrentNbCof,
+ &CurrentDivisor,
+ &Ignored32,
+ StdHeader)) {
+ ASSERT (CurrentDivisor != 0);
+ CurrentFreq = (CurrentNbCof / CurrentDivisor);
+ if (FirstCofNotFound) {
+ *SystemNbCofNumerator = CurrentNbCof;
+ *SystemNbCofDenominator = CurrentDivisor;
+ LowFrequency = CurrentFreq;
+ IsNbPstateEnabledOnAny = TRUE;
+ if (!NbPstateDisabled) {
+ *NbPstateIsEnabledOnAllCPUs = TRUE;
+ }
+ FirstCofNotFound = FALSE;
+ } else {
+ if (CurrentFreq != LowFrequency) {
+ *SystemNbCofsMatch = FALSE;
+ if (CurrentFreq < LowFrequency) {
+ LowFrequency = CurrentFreq;
+ *SystemNbCofNumerator = CurrentNbCof;
+ *SystemNbCofDenominator = CurrentDivisor;
+ }
+ }
+ }
+ } else {
+ NbPstateDisabled = TRUE;
+ *NbPstateIsEnabledOnAllCPUs = FALSE;
+ }
+ }
+ }
+ return IsNbPstateEnabledOnAny;
+}
+
+
+/*---------------------------------------------------------------------------------------*/
+/**
+ * Multisocket call to determine if the BIOS is responsible for updating the
+ * northbridge operating frequency and voltage.
+ *
+ * This function loops through all possible socket locations, checking whether
+ * any populated sockets require NB COF VID programming.
+ *
+ * @param[in] StdHeader Config handle for library and services
+ *
+ * @retval TRUE BIOS needs to set up NB frequency and voltage
+ * @retval FALSE BIOS does not need to set up NB frequency and voltage
+ *
+ */
+BOOLEAN
+GetSystemNbCofVidUpdateMulti (
+ IN AMD_CONFIG_PARAMS *StdHeader
+ )
+{
+ UINT8 Module;
+ UINT32 Socket;
+ UINT32 NumberOfSockets;
+ BOOLEAN IgnoredBool;
+ BOOLEAN AtLeast1RequiresUpdate;
+ PCI_ADDR PciAddress;
+ AGESA_STATUS Ignored;
+ CPU_SPECIFIC_SERVICES *FamilySpecificServices;
+
+ NumberOfSockets = GetPlatformNumberOfSockets ();
+
+ AtLeast1RequiresUpdate = FALSE;
+ for (Socket = 0; Socket < NumberOfSockets; Socket++) {
+ if (IsProcessorPresent (Socket, StdHeader)) {
+ GetCpuServicesOfSocket (Socket, &FamilySpecificServices, StdHeader);
+ for (Module = 0; Module < GetPlatformNumberOfModules (); Module++) {
+ if (GetPciAddress (StdHeader, (UINT8) Socket, Module, &PciAddress, &Ignored)) {
+ break;
+ }
+ }
+ if (FamilySpecificServices->IsNbCofInitNeeded (FamilySpecificServices, &PciAddress, &IgnoredBool, StdHeader)) {
+ AtLeast1RequiresUpdate = TRUE;
+ break;
+ }
+ }
+ }
+ return AtLeast1RequiresUpdate;
+}
+
+
+/*---------------------------------------------------------------------------------------*/
+/**
+ * Multisocket call to determine the most severe AGESA_STATUS return value after
+ * processing the power management initialization tables.
+ *
+ * This function loops through all possible socket locations, collecting any
+ * power management initialization errors that may have occurred. These errors
+ * are transferred from the core 0s of the socket in which the errors occurred
+ * to the BSC's heap. The BSC's heap is then searched for the most severe error
+ * that occurred, and returns it. This function must be called by the BSC only.
+ *
+ * @param[in] StdHeader Config handle for library and services
+ *
+ * @return The most severe error code from power management init
+ *
+ */
+AGESA_STATUS
+GetEarlyPmErrorsMulti (
+ IN AMD_CONFIG_PARAMS *StdHeader
+ )
+{
+ UINT16 i;
+ UINT32 BscSocket;
+ UINT32 BscModule;
+ UINT32 BscCore;
+ UINT32 Socket;
+ UINT32 NumberOfSockets;
+ AP_TASK TaskPtr;
+ AGESA_EVENT EventLogEntry;
+ AGESA_STATUS ReturnCode;
+ AGESA_STATUS DummyStatus;
+
+ ASSERT (IsBsp (StdHeader, &ReturnCode));
+
+ ReturnCode = AGESA_SUCCESS;
+ EventLogEntry.EventClass = AGESA_SUCCESS;
+ EventLogEntry.EventInfo = 0;
+ EventLogEntry.DataParam1 = 0;
+ EventLogEntry.DataParam2 = 0;
+ EventLogEntry.DataParam3 = 0;
+ EventLogEntry.DataParam4 = 0;
+
+ NumberOfSockets = GetPlatformNumberOfSockets ();
+ IdentifyCore (StdHeader, &BscSocket, &BscModule, &BscCore, &DummyStatus);
+
+ TaskPtr.FuncAddress.PfApTaskI = GetNextEvent;
+ TaskPtr.DataTransfer.DataSizeInDwords = SIZE_IN_DWORDS (AGESA_EVENT);
+ TaskPtr.DataTransfer.DataPtr = &EventLogEntry;
+ TaskPtr.DataTransfer.DataTransferFlags = 0;
+ TaskPtr.ExeFlags = WAIT_FOR_CORE | RETURN_PARAMS;
+ for (Socket = 0; Socket < NumberOfSockets; Socket++) {
+ if (Socket != BscSocket) {
+ if (IsProcessorPresent (Socket, StdHeader)) {
+ do {
+ ApUtilRunCodeOnSocketCore ((UINT8)Socket, (UINT8) 0, &TaskPtr, StdHeader);
+ if ((EventLogEntry.EventInfo & CPU_EVENT_PM_EVENT_MASK) == CPU_EVENT_PM_EVENT_CLASS) {
+ PutEventLog (
+ EventLogEntry.EventClass,
+ EventLogEntry.EventInfo,
+ EventLogEntry.DataParam1,
+ EventLogEntry.DataParam2,
+ EventLogEntry.DataParam3,
+ EventLogEntry.DataParam4,
+ StdHeader
+ );
+ }
+ } while (EventLogEntry.EventInfo != 0);
+ }
+ }
+ }
+
+ for (i = 0; PeekEventLog (&EventLogEntry, i, StdHeader); i++) {
+ if ((EventLogEntry.EventInfo & CPU_EVENT_PM_EVENT_MASK) == CPU_EVENT_PM_EVENT_CLASS) {
+ if (EventLogEntry.EventClass > ReturnCode) {
+ ReturnCode = EventLogEntry.EventClass;
+ }
+ }
+ }
+ return (ReturnCode);
+}
+
+/*---------------------------------------------------------------------------------------
+ * L O C A L F U N C T I O N S
+ *---------------------------------------------------------------------------------------
+ */
+
+/*---------------------------------------------------------------------------------------*/
+/**
+ * AP task to return the next event log entry to the BSC.
+ *
+ * This function calls to the event log manager to retrieve the next error out
+ * of the heap.
+ *
+ * @param[out] EventLogEntryPtr The AP's next event log entry
+ * @param[in] StdHeader Config handle for library and services
+ *
+ */
+VOID
+STATIC
+GetNextEvent (
+ IN OUT VOID *EventLogEntryPtr,
+ IN AMD_CONFIG_PARAMS *StdHeader
+ )
+{
+ GetEventLog ((AGESA_EVENT *) EventLogEntryPtr, StdHeader);
+}