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+/* $NoKeywords:$ */
+/**
+ * @file
+ *
+ * AMD CPU Pstate Data Gather Function.
+ *
+ * Contains code to collect all the Pstate related information from MSRs, and PCI registers.
+ *
+ * @xrefitem bom "File Content Label" "Release Content"
+ * @e project: AGESA
+ * @e sub-project: CPU
+ * @e \$Revision: 63425 $ @e \$Date: 2011-12-22 11:24:10 -0600 (Thu, 22 Dec 2011) $
+ *
+ */
+/*****************************************************************************
+ *
+ * Copyright 2008 - 2012 ADVANCED MICRO DEVICES, INC. All Rights Reserved.
+ *
+ * AMD is granting you permission to use this software (the Materials)
+ * pursuant to the terms and conditions of your Software License Agreement
+ * with AMD. This header does *NOT* give you permission to use the Materials
+ * or any rights under AMD's intellectual property. Your use of any portion
+ * of these Materials shall constitute your acceptance of those terms and
+ * conditions. If you do not agree to the terms and conditions of the Software
+ * License Agreement, please do not use any portion of these Materials.
+ *
+ * CONFIDENTIALITY: The Materials and all other information, identified as
+ * confidential and provided to you by AMD shall be kept confidential in
+ * accordance with the terms and conditions of the Software License Agreement.
+ *
+ * LIMITATION OF LIABILITY: THE MATERIALS AND ANY OTHER RELATED INFORMATION
+ * PROVIDED TO YOU BY AMD ARE PROVIDED "AS IS" WITHOUT ANY EXPRESS OR IMPLIED
+ * WARRANTY OF ANY KIND, INCLUDING BUT NOT LIMITED TO WARRANTIES OF
+ * MERCHANTABILITY, NONINFRINGEMENT, TITLE, FITNESS FOR ANY PARTICULAR PURPOSE,
+ * OR WARRANTIES ARISING FROM CONDUCT, COURSE OF DEALING, OR USAGE OF TRADE.
+ * IN NO EVENT SHALL AMD OR ITS LICENSORS BE LIABLE FOR ANY DAMAGES WHATSOEVER
+ * (INCLUDING, WITHOUT LIMITATION, DAMAGES FOR LOSS OF PROFITS, BUSINESS
+ * INTERRUPTION, OR LOSS OF INFORMATION) ARISING OUT OF AMD'S NEGLIGENCE,
+ * GROSS NEGLIGENCE, THE USE OF OR INABILITY TO USE THE MATERIALS OR ANY OTHER
+ * RELATED INFORMATION PROVIDED TO YOU BY AMD, EVEN IF AMD HAS BEEN ADVISED OF
+ * THE POSSIBILITY OF SUCH DAMAGES. BECAUSE SOME JURISDICTIONS PROHIBIT THE
+ * EXCLUSION OR LIMITATION OF LIABILITY FOR CONSEQUENTIAL OR INCIDENTAL DAMAGES,
+ * THE ABOVE LIMITATION MAY NOT APPLY TO YOU.
+ *
+ * AMD does not assume any responsibility for any errors which may appear in
+ * the Materials or any other related information provided to you by AMD, or
+ * result from use of the Materials or any related information.
+ *
+ * You agree that you will not reverse engineer or decompile the Materials.
+ *
+ * NO SUPPORT OBLIGATION: AMD is not obligated to furnish, support, or make any
+ * further information, software, technical information, know-how, or show-how
+ * available to you. Additionally, AMD retains the right to modify the
+ * Materials at any time, without notice, and is not obligated to provide such
+ * modified Materials to you.
+ *
+ * U.S. GOVERNMENT RESTRICTED RIGHTS: The Materials are provided with
+ * "RESTRICTED RIGHTS." Use, duplication, or disclosure by the Government is
+ * subject to the restrictions as set forth in FAR 52.227-14 and
+ * DFAR252.227-7013, et seq., or its successor. Use of the Materials by the
+ * Government constitutes acknowledgement of AMD's proprietary rights in them.
+ *
+ * EXPORT ASSURANCE: You agree and certify that neither the Materials, nor any
+ * direct product thereof will be exported directly or indirectly, into any
+ * country prohibited by the United States Export Administration Act and the
+ * regulations thereunder, without the required authorization from the U.S.
+ * government nor will be used for any purpose prohibited by the same.
+ ******************************************************************************
+ */
+
+
+/*
+ *----------------------------------------------------------------------------
+ * MODULES USED
+ *
+ *----------------------------------------------------------------------------
+ */
+#include "AGESA.h"
+#include "amdlib.h"
+#include "OptionPstate.h"
+#include "cpuRegisters.h"
+#include "cpuServices.h"
+#include "GeneralServices.h"
+#include "cpuPostInit.h"
+#include "Ids.h"
+#include "cpuFamilyTranslation.h"
+#include "cpuPstateTables.h"
+#include "cpuApicUtilities.h"
+#include "cpuFeatures.h"
+#include "Filecode.h"
+CODE_GROUP (G1_PEICC)
+RDATA_GROUP (G1_PEICC)
+
+#define FILECODE PROC_CPU_FEATURE_CPUPSTATEGATHER_FILECODE
+
+/*----------------------------------------------------------------------------
+ * DEFINITIONS AND MACROS
+ *
+ *----------------------------------------------------------------------------
+ */
+extern OPTION_PSTATE_POST_CONFIGURATION OptionPstatePostConfiguration; // global user config record
+extern CPU_FAMILY_SUPPORT_TABLE PstateFamilyServiceTable;
+
+/*----------------------------------------------------------------------------
+ * TYPEDEFS AND STRUCTURES
+ *
+ *----------------------------------------------------------------------------
+ */
+
+/*----------------------------------------------------------------------------
+ * PROTOTYPES OF LOCAL FUNCTIONS
+ *
+ *----------------------------------------------------------------------------
+ */
+AGESA_STATUS
+PStateGatherStub (
+ IN AMD_CONFIG_PARAMS *StdHeader,
+ IN OUT S_CPU_AMD_PSTATE *PStateStrucPtr
+ );
+
+AGESA_STATUS
+PStateGatherMain (
+ IN AMD_CONFIG_PARAMS *StdHeader,
+ IN OUT S_CPU_AMD_PSTATE *PStateStrucPtr
+ );
+
+
+/*----------------------------------------------------------------------------
+ * EXPORTED FUNCTIONS
+ *
+ *----------------------------------------------------------------------------
+ */
+VOID
+PStateGather (
+ IN OUT VOID *PStateBuffer,
+ IN AMD_CONFIG_PARAMS *StdHeader
+ );
+
+/**
+ *---------------------------------------------------------------------------------------
+ *
+ * PStateGatherData
+ *
+ * Description:
+ * This function will gather PState information from the MSRs and fill up the
+ * pStateBuf. This buffer will be used by the PState Leveling, and PState Table
+ * generation code later.
+ *
+ * Parameters:
+ * @param[in] *PlatformConfig
+ * @param[in, out] *PStateStrucPtr
+ * @param[in] *StdHeader
+ *
+ * @retval AGESA_STATUS
+ *
+ *---------------------------------------------------------------------------------------
+ **/
+AGESA_STATUS
+PStateGatherData (
+ IN PLATFORM_CONFIGURATION *PlatformConfig,
+ IN OUT S_CPU_AMD_PSTATE *PStateStrucPtr,
+ IN AMD_CONFIG_PARAMS *StdHeader
+ )
+{
+
+
+ AGESA_STATUS AgesaStatus;
+
+ AGESA_TESTPOINT (TpProcCpuEntryPstateGather, StdHeader);
+ AgesaStatus = AGESA_SUCCESS;
+
+ // Gather data for ACPI Tables if ACPI P-States/C-States object generation is enabled.
+ if ((PlatformConfig->UserOptionPState) || (IsFeatureEnabled (IoCstate, PlatformConfig, StdHeader))) {
+ AgesaStatus = (*(OptionPstatePostConfiguration.PstateGather)) (StdHeader, PStateStrucPtr);
+ // Note: Split config struct into PEI/DXE halves. This one is PEI.
+ }
+
+ return AgesaStatus;
+}
+
+/**--------------------------------------------------------------------------------------
+ *
+ * PStateGatherStub
+ *
+ * Description:
+ * This is the default routine for use when the PState option is NOT requested.
+ * The option install process will create and fill the transfer vector with
+ * the address of the proper routine (Main or Stub). The link optimizer will
+ * strip out of the .DLL the routine that is not used.
+ *
+ * Parameters:
+ * @param[in] *StdHeader
+ * @param[in, out] *PStateStrucPtr
+ *
+ * @retval AGESA_STATUS
+ *
+ *---------------------------------------------------------------------------------------
+ **/
+AGESA_STATUS
+PStateGatherStub (
+ IN AMD_CONFIG_PARAMS *StdHeader,
+ IN OUT S_CPU_AMD_PSTATE *PStateStrucPtr
+ )
+{
+ return AGESA_UNSUPPORTED;
+}
+
+/**--------------------------------------------------------------------------------------
+ *
+ * PStateGatherMain
+ *
+ * Description:
+ * This is the common routine for BSP gathering the Pstate data.
+ *
+ * Parameters:
+ * @param[in] *StdHeader
+ * @param[in, out] *PStateStrucPtr
+ *
+ * @retval AGESA_STATUS
+ *
+ *---------------------------------------------------------------------------------------
+ **/
+AGESA_STATUS
+PStateGatherMain (
+ IN AMD_CONFIG_PARAMS *StdHeader,
+ IN OUT S_CPU_AMD_PSTATE *PStateStrucPtr
+ )
+{
+ AP_TASK TaskPtr;
+ UINT32 BscSocket;
+ UINT32 Ignored;
+ UINT32 PopulatedSockets;
+ UINT32 NumberOfSockets;
+ UINT32 Socket;
+ AGESA_STATUS IgnoredSts;
+ PSTATE_LEVELING *PStateBufferPtr;
+ PSTATE_CPU_FAMILY_SERVICES *FamilyServices;
+ UINT32 MaxState;
+ UINT8 IgnoredByte;
+
+ ASSERT (IsBsp (StdHeader, &IgnoredSts));
+
+ FamilyServices = NULL;
+ GetFeatureServicesOfCurrentCore (&PstateFamilyServiceTable, (CONST VOID **)&FamilyServices, StdHeader);
+ ASSERT (FamilyServices != NULL);
+
+ PopulatedSockets = 1;
+ PStateBufferPtr = PStateStrucPtr->PStateLevelingStruc;
+
+ NumberOfSockets = GetPlatformNumberOfSockets ();
+ IdentifyCore (StdHeader, &BscSocket, &Ignored, &Ignored, &IgnoredSts);
+
+ PStateStrucPtr->SizeOfBytes = sizeof (S_CPU_AMD_PSTATE);
+
+ MaxState = 0;
+ FamilyServices->GetPstateMaxState (FamilyServices, &MaxState, &IgnoredByte, StdHeader);
+
+ TaskPtr.FuncAddress.PfApTaskI = PStateGather;
+ //
+ // Calculate max buffer size in dwords that need to pass to ap task.
+ //
+ TaskPtr.DataTransfer.DataSizeInDwords = (UINT16) ((MaxState + 1) * (SIZE_IN_DWORDS (S_PSTATE_VALUES)));
+ TaskPtr.ExeFlags = WAIT_FOR_CORE;
+ TaskPtr.DataTransfer.DataPtr = PStateBufferPtr;
+ TaskPtr.DataTransfer.DataTransferFlags = DATA_IN_MEMORY;
+
+ //
+ //Get P-States and fill the PStateBufferPtr for BSP
+ //
+ ApUtilTaskOnExecutingCore (&TaskPtr, StdHeader, NULL);
+
+ //
+ //Calculate next node buffer address
+ //
+ PStateBufferPtr->SocketNumber = (UINT8) BscSocket;
+ PStateBufferPtr->PStateLevelingSizeOfBytes = (UINT16) (sizeof (PSTATE_LEVELING) + (UINT32) (PStateBufferPtr->PStateCoreStruct[0].PStateMaxValue * sizeof (S_PSTATE_VALUES)));
+ PStateStrucPtr->SizeOfBytes += (UINT32) (PStateBufferPtr->PStateCoreStruct[0].PStateMaxValue * sizeof (S_PSTATE_VALUES));
+ PStateBufferPtr = (PSTATE_LEVELING *) ((UINT8 *) PStateBufferPtr + (UINTN) sizeof (PSTATE_LEVELING) + (UINTN) (PStateBufferPtr->PStateCoreStruct[0].PStateMaxValue * sizeof (S_PSTATE_VALUES)));
+ CpuGetPStateLevelStructure (&PStateBufferPtr, PStateStrucPtr, 1, StdHeader);
+ //
+ //Get CPU P-States and fill the PStateBufferPtr for each node(BSC)
+ //
+ for (Socket = 0; Socket < NumberOfSockets; Socket++) {
+ if (Socket != BscSocket) {
+ if (IsProcessorPresent (Socket, StdHeader)) {
+ PopulatedSockets++;
+ LibAmdMemFill (PStateBufferPtr, 0, sizeof (PSTATE_LEVELING), StdHeader);
+ TaskPtr.DataTransfer.DataPtr = PStateBufferPtr;
+ ApUtilRunCodeOnSocketCore ((UINT8)Socket, 0, &TaskPtr, StdHeader);
+ PStateBufferPtr->SocketNumber = (UINT8) Socket;
+ //
+ //Calculate next node buffer address
+ //
+ PStateBufferPtr->PStateLevelingSizeOfBytes = (UINT16) (sizeof (PSTATE_LEVELING) + (UINT32) (PStateBufferPtr->PStateCoreStruct[0].PStateMaxValue * sizeof (S_PSTATE_VALUES)));
+ PStateStrucPtr->SizeOfBytes += PStateBufferPtr->PStateLevelingSizeOfBytes;
+ PStateBufferPtr = (PSTATE_LEVELING *) ((UINT8 *) PStateBufferPtr + (UINTN) sizeof (PSTATE_LEVELING) + (UINTN) (PStateBufferPtr->PStateCoreStruct[0].PStateMaxValue * sizeof (S_PSTATE_VALUES)));
+ }
+ }
+ }
+ PStateStrucPtr->TotalSocketInSystem = PopulatedSockets;
+
+ return AGESA_SUCCESS;
+}
+/**--------------------------------------------------------------------------------------
+ *
+ * PStateGather
+ *
+ * Description:
+ * This is the common routine run on each BSC for gathering Pstate data.
+ *
+ * Parameters:
+ * @param[in,out] *PStateBuffer
+ * @param[in] *StdHeader
+ *
+ * @retval VOID
+ *
+ *---------------------------------------------------------------------------------------
+ **/
+VOID
+PStateGather (
+ IN OUT VOID *PStateBuffer,
+ IN AMD_CONFIG_PARAMS *StdHeader
+ )
+{
+ UINT32 k;
+ UINT32 IddVal;
+ UINT32 IddDiv;
+ UINT32 NodeNum;
+ UINT32 CoreNum;
+ UINT32 TempVar_c;
+ UINT32 TotalEnabledPStates;
+ UINT32 SwPstate;
+ UINT8 BoostStates;
+ PCI_ADDR PciAddress;
+ PSTATE_LEVELING *PStateBufferPtr;
+ BOOLEAN PStateEnabled;
+ PSTATE_CPU_FAMILY_SERVICES *FamilyServices;
+ UINT32 Socket;
+ AGESA_STATUS IgnoredSts;
+ CPUID_DATA CpuId;
+
+ PStateBufferPtr = (PSTATE_LEVELING *) PStateBuffer;
+ TotalEnabledPStates = 0;
+ FamilyServices = NULL;
+ PStateEnabled = FALSE;
+
+ GetFeatureServicesOfCurrentCore (&PstateFamilyServiceTable, (CONST VOID **)&FamilyServices, StdHeader);
+ ASSERT (FamilyServices != NULL);
+
+ //
+ /// Sockets number: code looking at PStateBufferPtr->TotalCoresInNode
+ /// needs to know it is Processor (or socket) core count and NOT a Node Core count.
+ GetActiveCoresInCurrentSocket (&CoreNum, StdHeader);
+ PStateBufferPtr->TotalCoresInNode = (UINT8) CoreNum;
+
+ //
+ // Assume current CoreNum always zero.(BSC)
+ //
+ GetCurrentNodeAndCore (&NodeNum, &CoreNum, StdHeader);
+
+ PStateBufferPtr->CreateAcpiTables = 1;
+
+ //
+ // We need to know the max pstate state in this socket.
+ //
+ FamilyServices->GetPstateMaxState (FamilyServices, &TempVar_c, &BoostStates, StdHeader);
+ PStateBufferPtr->PStateCoreStruct[0].PStateMaxValue = (UINT8) TempVar_c;
+ PStateBufferPtr->PStateCoreStruct[0].NumberOfBoostedStates = BoostStates;
+
+ for (k = 0; k <= TempVar_c; k++) {
+ // Check if PState is enabled
+ FamilyServices->GetPstateRegisterInfo ( FamilyServices,
+ k,
+ &PStateEnabled,
+ &IddVal,
+ &IddDiv,
+ &SwPstate,
+ StdHeader);
+
+ LibAmdMemFill (&(PStateBufferPtr->PStateCoreStruct[0].PStateStruct[k]), 0, sizeof (S_PSTATE_VALUES), StdHeader);
+
+ if (PStateEnabled) {
+ FamilyServices->GetPstateFrequency (
+ FamilyServices,
+ (UINT8) k,
+ &(PStateBufferPtr->PStateCoreStruct[0].PStateStruct[k].CoreFreq),
+ StdHeader);
+
+ FamilyServices->GetPstatePower (
+ FamilyServices,
+ (UINT8) k,
+ &(PStateBufferPtr->PStateCoreStruct[0].PStateStruct[k].Power),
+ StdHeader);
+
+ PStateBufferPtr->PStateCoreStruct[0].PStateStruct[k].IddValue = IddVal;
+ PStateBufferPtr->PStateCoreStruct[0].PStateStruct[k].IddDiv = IddDiv;
+ PStateBufferPtr->PStateCoreStruct[0].PStateStruct[k].SwPstateNumber = SwPstate;
+
+ PStateBufferPtr->PStateCoreStruct[0].PStateStruct[k].PStateEnable = 1;
+ TotalEnabledPStates++;
+ }
+ } // for (k = 0; k < MPPSTATE_MAXIMUM_STATES; k++)
+
+ // Don't create ACPI Tables if there is one or less than one PState is enabled
+ if (TotalEnabledPStates <= 1) {
+ PStateBufferPtr[0].CreateAcpiTables = 0;
+ }
+
+ //--------------------Check Again--------------------------------
+
+ IdentifyCore (StdHeader, &Socket, &NodeNum, &CoreNum, &IgnoredSts);
+ // Get the PCI address of internal die 0 as it is the only die programmed.
+ GetPciAddress (StdHeader, Socket, 0, &PciAddress, &IgnoredSts);
+ PciAddress.Address.Function = FUNC_3;
+ PciAddress.Address.Register = NORTH_BRIDGE_CAPABILITIES_REG;
+ TempVar_c = 0;
+ LibAmdPciRead (AccessWidth32, PciAddress, &TempVar_c, StdHeader);
+ PStateBufferPtr->PStateCoreStruct[0].HtcCapable =
+ (UINT8) ((TempVar_c & 0x00000400) >> 10); // Bit 10
+
+ TempVar_c = 0;
+ PciAddress.Address.Register = HARDWARE_THERMAL_CTRL_REG;
+ LibAmdPciRead (AccessWidth32, PciAddress, &TempVar_c, StdHeader);
+ PStateBufferPtr->PStateCoreStruct[0].HtcPstateLimit =
+ (UINT8) ((TempVar_c & 0x70000000) >> 28); // Bits 30:28
+
+ // Get LocalApicId from CPUID Fn0000_0001_EBX
+ LibAmdCpuidRead (AMD_CPUID_APICID_LPC_BID, &CpuId, StdHeader);
+ PStateBufferPtr->PStateCoreStruct[0].LocalApicId = (UINT8) ((CpuId.EBX_Reg & 0xFF000000) >> 24);
+}
+
+
+/*----------------------------------------------------------------------------
+ * LOCAL FUNCTIONS
+ *
+ *----------------------------------------------------------------------------
+ */