--- /dev/null
+/* $NoKeywords:$ */
+/**
+ * @file
+ *
+ * AMD CPU L3 Features Initialization functions.
+ *
+ * Contains code for initializing L3 features.
+ *
+ * @xrefitem bom "File Content Label" "Release Content"
+ * @e project: AGESA
+ * @e sub-project: CPU
+ * @e \$Revision: 60552 $ @e \$Date: 2011-10-17 18:50:55 -0600 (Mon, 17 Oct 2011) $
+ *
+ */
+/*
+ ******************************************************************************
+ *
+ * Copyright (C) 2012 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.
+ *
+ ******************************************************************************
+ */
+
+
+/*
+ *----------------------------------------------------------------------------
+ * MODULES USED
+ *
+ *----------------------------------------------------------------------------
+ */
+
+#include "AGESA.h"
+#include "amdlib.h"
+#include "Ids.h"
+#include "cpuRegisters.h"
+#include "cpuLateInit.h"
+#include "cpuFamilyTranslation.h"
+#include "cpuServices.h"
+#include "GeneralServices.h"
+#include "cpuFeatures.h"
+#include "cpuL3Features.h"
+#include "Filecode.h"
+CODE_GROUP (G2_PEI)
+RDATA_GROUP (G2_PEI)
+
+#define FILECODE PROC_CPU_FEATURE_CPUL3FEATURES_FILECODE
+/*----------------------------------------------------------------------------
+ * DEFINITIONS AND MACROS
+ *
+ *----------------------------------------------------------------------------
+ */
+
+/*----------------------------------------------------------------------------
+ * TYPEDEFS AND STRUCTURES
+ *
+ *----------------------------------------------------------------------------
+ */
+
+/*----------------------------------------------------------------------------
+ * PROTOTYPES OF LOCAL FUNCTIONS
+ *
+ *----------------------------------------------------------------------------
+ */
+
+/*----------------------------------------------------------------------------
+ * EXPORTED FUNCTIONS
+ *
+ *----------------------------------------------------------------------------
+ */
+extern CPU_FAMILY_SUPPORT_TABLE L3FeatureFamilyServiceTable;
+
+/*---------------------------------------------------------------------------------------*/
+/**
+ * Should L3 features be enabled
+ *
+ * @param[in] PlatformConfig Contains the runtime modifiable feature input data.
+ * @param[in] StdHeader Config Handle for library, services.
+ *
+ * @retval TRUE L3 Features are supported
+ * @retval FALSE L3 Features are not supported
+ *
+ */
+BOOLEAN
+STATIC
+IsL3FeatureEnabled (
+ IN PLATFORM_CONFIGURATION *PlatformConfig,
+ IN AMD_CONFIG_PARAMS *StdHeader
+ )
+{
+ BOOLEAN IsEnabled;
+ UINT32 Socket;
+ L3_FEATURE_FAMILY_SERVICES *FamilyServices;
+
+ IsEnabled = FALSE;
+ if (PlatformConfig->PlatformProfile.UseHtAssist ||
+ PlatformConfig->PlatformProfile.UseAtmMode) {
+ IsEnabled = TRUE;
+ for (Socket = 0; Socket < GetPlatformNumberOfSockets (); Socket++) {
+ if (IsProcessorPresent (Socket, StdHeader)) {
+ GetFeatureServicesOfSocket (&L3FeatureFamilyServiceTable, Socket, (CONST VOID **)&FamilyServices, StdHeader);
+ if ((FamilyServices == NULL) || !FamilyServices->IsL3FeatureSupported (FamilyServices, Socket, StdHeader, PlatformConfig)) {
+ IsEnabled = FALSE;
+ break;
+ }
+ }
+ }
+ }
+ return IsEnabled;
+}
+
+/*---------------------------------------------------------------------------------------*/
+/**
+ * Enable L3 dependent features.
+ *
+ * L3 features initialization requires the following series of steps.
+ * 1. Disable L3 and DRAM scrubbers on all nodes
+ * 2. Wait 40us for outstanding scrub results to complete
+ * 3. Disable all cache activity in the system
+ * 4. Issue WBINVD on all active cores
+ * 5. Initialize Probe Filter, if supported
+ * 6. Initialize ATM Mode, if supported
+ * 7. Enable all cache activity in the system
+ * 8. Restore L3 and DRAM scrubber register values
+ *
+ * @param[in] EntryPoint Timepoint designator.
+ * @param[in] PlatformConfig Contains the runtime modifiable feature input data.
+ * @param[in] StdHeader Config Handle for library, services.
+ *
+ * @retval AGESA_SUCCESS Always succeeds.
+ *
+ */
+AGESA_STATUS
+STATIC
+InitializeL3Feature (
+ IN UINT64 EntryPoint,
+ IN PLATFORM_CONFIGURATION *PlatformConfig,
+ IN AMD_CONFIG_PARAMS *StdHeader
+ )
+{
+ UINT32 CpuCount;
+ UINT32 Socket;
+ BOOLEAN HtAssistEnabled;
+ BOOLEAN AtmModeEnabled;
+ AGESA_STATUS AgesaStatus;
+ AP_MAILBOXES ApMailboxes;
+ AP_EXE_PARAMS ApParams;
+ UINT32 Scrubbers[MAX_SOCKETS_SUPPORTED][L3_SCRUBBER_CONTEXT_ARRAY_SIZE];
+ L3_FEATURE_FAMILY_SERVICES *FamilyServices[MAX_SOCKETS_SUPPORTED];
+
+ AgesaStatus = AGESA_SUCCESS;
+ HtAssistEnabled = TRUE;
+ AtmModeEnabled = TRUE;
+
+ IDS_HDT_CONSOLE (CPU_TRACE, " Enabling L3 dependent features\n");
+
+ // There are many family service call outs. Initialize the family service array while
+ // cache is still enabled.
+ for (Socket = 0; Socket < MAX_SOCKETS_SUPPORTED; Socket++) {
+ if (IsProcessorPresent (Socket, StdHeader)) {
+ GetFeatureServicesOfSocket (&L3FeatureFamilyServiceTable, Socket, (CONST VOID **)&FamilyServices[Socket], StdHeader);
+ } else {
+ FamilyServices[Socket] = NULL;
+ }
+ }
+
+ if (EntryPoint == CPU_FEAT_AFTER_POST_MTRR_SYNC) {
+ // Check for optimal settings
+ GetApMailbox (&ApMailboxes.ApMailInfo.Info, StdHeader);
+ CpuCount = GetNumberOfProcessors (StdHeader);
+ if (((CpuCount == 1) && (ApMailboxes.ApMailInfo.Fields.ModuleType == 1)) ||
+ ((CpuCount == 2) && (ApMailboxes.ApMailInfo.Fields.ModuleType == 0))) {
+ for (Socket = 0; Socket < GetPlatformNumberOfSockets (); Socket++) {
+ // Only check for non-optimal HT Assist setting is if's supported.
+ if ((FamilyServices[Socket] != NULL) &&
+ (FamilyServices[Socket]->IsHtAssistSupported (FamilyServices[Socket], PlatformConfig, StdHeader))) {
+ if (FamilyServices[Socket]->IsNonOptimalConfig (FamilyServices[Socket], Socket, StdHeader)) {
+ // Non-optimal settings. Log an event.
+ AgesaStatus = AGESA_WARNING;
+ PutEventLog (AgesaStatus, CPU_WARNING_NONOPTIMAL_HT_ASSIST_CFG, 0, 0, 0, 0, StdHeader);
+ break;
+ }
+ }
+ }
+ }
+ } else {
+ // Disable the scrubbers.
+ for (Socket = 0; Socket < GetPlatformNumberOfSockets (); Socket++) {
+ if (FamilyServices[Socket] != NULL) {
+ FamilyServices[Socket]->GetL3ScrubCtrl (FamilyServices[Socket], Socket, &Scrubbers[Socket][0], StdHeader);
+
+ // If any node in the system does not support Probe Filter, disable it on the system
+ if (!FamilyServices[Socket]->IsHtAssistSupported (FamilyServices[Socket], PlatformConfig, StdHeader)) {
+ HtAssistEnabled = FALSE;
+ }
+ // If any node in the system does not support ATM mode, disable it on the system
+ if (!FamilyServices[Socket]->IsAtmModeSupported (FamilyServices[Socket], PlatformConfig, StdHeader)) {
+ AtmModeEnabled = FALSE;
+ }
+ }
+ }
+
+ // Wait for 40us
+ WaitMicroseconds ((UINT32) 40, StdHeader);
+
+ // Run DisableAllCaches on AP cores.
+ ApParams.StdHeader = *StdHeader;
+ ApParams.FunctionNumber = AP_LATE_TASK_DISABLE_CACHE;
+ ApParams.RelatedDataBlock = (VOID *) &HtAssistEnabled;
+ ApParams.RelatedBlockLength = sizeof (BOOLEAN);
+ RunLateApTaskOnAllAPs (&ApParams, StdHeader);
+
+ // Run DisableAllCaches on core 0.
+ DisableAllCaches (&ApParams);
+
+ // Family hook before initialization.
+ for (Socket = 0; Socket < GetPlatformNumberOfSockets (); Socket++) {
+ if (FamilyServices[Socket] != NULL) {
+ FamilyServices[Socket]->HookBeforeInit (FamilyServices[Socket], Socket, StdHeader);
+ }
+ }
+
+ // Activate Probe Filter & ATM mode.
+ for (Socket = 0; Socket < GetPlatformNumberOfSockets (); Socket++) {
+ if (FamilyServices[Socket] != NULL) {
+ if (HtAssistEnabled) {
+ FamilyServices[Socket]->HtAssistInit (FamilyServices[Socket], Socket, StdHeader);
+ }
+ if (AtmModeEnabled) {
+ FamilyServices[Socket]->AtmModeInit (FamilyServices[Socket], Socket, StdHeader);
+ }
+ }
+ }
+
+ // Family hook after initialization.
+ for (Socket = 0; Socket < GetPlatformNumberOfSockets (); Socket++) {
+ if (FamilyServices[Socket] != NULL) {
+ FamilyServices[Socket]->HookAfterInit (FamilyServices[Socket], Socket, StdHeader);
+ }
+ }
+
+ // Run EnableAllCaches on core 0.
+ EnableAllCaches (&ApParams);
+
+ // Run EnableAllCaches on every core.
+ ApParams.FunctionNumber = AP_LATE_TASK_ENABLE_CACHE;
+ RunLateApTaskOnAllAPs (&ApParams, StdHeader);
+
+ // Restore the scrubbers.
+ for (Socket = 0; Socket < GetPlatformNumberOfSockets (); Socket++) {
+ if (FamilyServices[Socket] != NULL) {
+ FamilyServices[Socket]->SetL3ScrubCtrl (FamilyServices[Socket], Socket, &Scrubbers[Socket][0], StdHeader);
+ }
+ }
+ }
+
+ return AgesaStatus;
+}
+
+/*---------------------------------------------------------------------------------------*/
+/**
+ *
+ * Disable all the caches on current core.
+ *
+ * @param[in] ApExeParams Handle to config for library and services.
+ *
+ * @retval AGESA_SUCCESS Always succeeds.
+ *
+ */
+AGESA_STATUS
+DisableAllCaches (
+ IN AP_EXE_PARAMS *ApExeParams
+ )
+{
+ UINT32 CR0Data;
+ L3_FEATURE_FAMILY_SERVICES *FamilyServices;
+
+ // Disable cache through CR0.
+ LibAmdReadCpuReg (0, &CR0Data);
+ CR0Data |= (0x60000000);
+ LibAmdWriteCpuReg (0, CR0Data);
+
+ // Execute wbinvd
+ LibAmdWriteBackInvalidateCache ();
+
+ GetFeatureServicesOfCurrentCore (&L3FeatureFamilyServiceTable, (CONST VOID **)&FamilyServices, &ApExeParams->StdHeader);
+
+ FamilyServices->HookDisableCache (FamilyServices, *(BOOLEAN *) ApExeParams->RelatedDataBlock, &ApExeParams->StdHeader);
+
+ return AGESA_SUCCESS;
+}
+
+/*---------------------------------------------------------------------------------------*/
+/**
+ *
+ * Enable all the caches on current core.
+ *
+ * @param[in] ApExeParams Handle to config for library and services.
+ *
+ * @retval AGESA_SUCCESS Always succeeds.
+ *
+ */
+AGESA_STATUS
+EnableAllCaches (
+ IN AP_EXE_PARAMS *ApExeParams
+ )
+{
+ UINT32 CR0Data;
+ L3_FEATURE_FAMILY_SERVICES *FamilyServices;
+
+ // Enable cache through CR0.
+ LibAmdReadCpuReg (0, &CR0Data);
+ CR0Data &= ~(0x60000000);
+ LibAmdWriteCpuReg (0, CR0Data);
+
+ GetFeatureServicesOfCurrentCore (&L3FeatureFamilyServiceTable, (CONST VOID **)&FamilyServices, &ApExeParams->StdHeader);
+
+ FamilyServices->HookEnableCache (FamilyServices, &ApExeParams->StdHeader);
+
+ return AGESA_SUCCESS;
+}
+
+CONST CPU_FEATURE_DESCRIPTOR ROMDATA CpuL3Features =
+{
+ L3Features,
+ (CPU_FEAT_AFTER_POST_MTRR_SYNC | CPU_FEAT_INIT_MID_END | CPU_FEAT_S3_LATE_RESTORE_END),
+ IsL3FeatureEnabled,
+ InitializeL3Feature
+};
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