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Diffstat (limited to 'src/vendorcode/amd/agesa/f14/Proc/CPU/Feature/cpuHtAssist.c')
| -rw-r--r-- | src/vendorcode/amd/agesa/f14/Proc/CPU/Feature/cpuHtAssist.c | 357 |
1 files changed, 357 insertions, 0 deletions
diff --git a/src/vendorcode/amd/agesa/f14/Proc/CPU/Feature/cpuHtAssist.c b/src/vendorcode/amd/agesa/f14/Proc/CPU/Feature/cpuHtAssist.c new file mode 100644 index 0000000000..c0c3e0a91f --- /dev/null +++ b/src/vendorcode/amd/agesa/f14/Proc/CPU/Feature/cpuHtAssist.c @@ -0,0 +1,357 @@ +/* $NoKeywords:$ */ +/** + * @file + * + * AMD CPU HT Assist Initialization functions. + * + * Contains code for doing probe filter initialization. + * + * @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. + * + * *************************************************************************** + * + */ + + +/* + *---------------------------------------------------------------------------- + * MODULES USED + * + *---------------------------------------------------------------------------- + */ + +#include "AGESA.h" +#include "amdlib.h" +#include "Topology.h" +#include "Ids.h" +#include "cpuRegisters.h" +#include "cpuLateInit.h" +#include "cpuFamilyTranslation.h" +#include "cpuServices.h" +#include "GeneralServices.h" +#include "cpuFeatures.h" +#include "cpuHtAssist.h" +#include "Filecode.h" +CODE_GROUP (G2_PEI) +RDATA_GROUP (G2_PEI) + +#define FILECODE PROC_CPU_FEATURE_CPUHTASSIST_FILECODE +/*---------------------------------------------------------------------------- + * DEFINITIONS AND MACROS + * + *---------------------------------------------------------------------------- + */ + +/*---------------------------------------------------------------------------- + * TYPEDEFS AND STRUCTURES + * + *---------------------------------------------------------------------------- + */ + +/*---------------------------------------------------------------------------- + * PROTOTYPES OF LOCAL FUNCTIONS + * + *---------------------------------------------------------------------------- + */ + +/*---------------------------------------------------------------------------- + * EXPORTED FUNCTIONS + * + *---------------------------------------------------------------------------- + */ +extern CPU_FAMILY_SUPPORT_TABLE HtAssistFamilyServiceTable; + + +/*---------------------------------------------------------------------------------------*/ +/** + * Should HT Assist be enabled + * + * @param[in] PlatformConfig Contains the runtime modifiable feature input data. + * @param[in] StdHeader Config Handle for library, services. + * + * @retval TRUE HT Assist is supported. + * @retval FALSE HT Assist cannot be enabled. + * + */ +BOOLEAN +STATIC +IsHtAssistEnabled ( + IN PLATFORM_CONFIGURATION *PlatformConfig, + IN AMD_CONFIG_PARAMS *StdHeader + ) +{ + BOOLEAN IsEnabled; + UINT32 CpuCount; + UINT32 Socket; + AP_MAILBOXES ApMailboxes; + HT_ASSIST_FAMILY_SERVICES *FamilyServices; + + IsEnabled = FALSE; + if (PlatformConfig->PlatformProfile.UseHtAssist || + PlatformConfig->PlatformProfile.UseAtmMode) { + CpuCount = GetNumberOfProcessors (StdHeader); + ASSERT (CpuCount != 0); + + if (CpuCount == 1) { + GetApMailbox (&ApMailboxes.ApMailInfo.Info, StdHeader); + if (ApMailboxes.ApMailInfo.Fields.ModuleType != 0) { + IsEnabled = TRUE; + } + } else if (CpuCount > 1) { + IsEnabled = TRUE; + } + if (IsEnabled) { + for (Socket = 0; Socket < GetPlatformNumberOfSockets (); Socket++) { + if (IsProcessorPresent (Socket, StdHeader)) { + GetFeatureServicesOfSocket (&HtAssistFamilyServiceTable, Socket, &FamilyServices, StdHeader); + if ((FamilyServices == NULL) || !FamilyServices->IsHtAssistSupported (FamilyServices, Socket, StdHeader)) { + IsEnabled = FALSE; + break; + } + } + } + } + } + return IsEnabled; +} + + +/*---------------------------------------------------------------------------------------*/ +/** + * Enable the HT Assist feature. + * + * HT Assist initialization requires the following series of steps. + * -# Disable Cache on @b all cores. + * -# Initialize Probe Filter PCI regs + * -# Save L3 Scrub Rate + * -# On each node: + * -# Turn off L3Scrubber and Disable L3 cache + * -# On each node: + * -# Enable probe filter + * -# On each node: + * -# Enable L3 cache and turn on Scrubber. + * -# Restore L3 Scrub Rate + * -# Enable Cache on @b all cores. + * + * @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 HT Assist feature is running optimally. + * @retval AGESA_WARNING HT Assist feature is not running optimally. + * + */ +AGESA_STATUS +STATIC +InitializeHtAssistFeature ( + IN UINT64 EntryPoint, + IN PLATFORM_CONFIGURATION *PlatformConfig, + IN AMD_CONFIG_PARAMS *StdHeader + ) +{ + UINT32 CpuCount; + UINT32 Socket; + AGESA_STATUS AgesaStatus; + AP_MAILBOXES ApMailboxes; + AP_EXE_PARAMS ApParams; + UINT32 Scrubbers[MAX_SOCKETS_SUPPORTED][L3_SCRUBBER_CONTEXT_ARRAY_SIZE]; + HT_ASSIST_FAMILY_SERVICES *FamilyServices[MAX_SOCKETS_SUPPORTED]; + + AgesaStatus = AGESA_SUCCESS; + + IDS_HDT_CONSOLE (CPU_TRACE, " HT assist is enabled\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 (&HtAssistFamilyServiceTable, Socket, &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++) { + if (FamilyServices[Socket] != NULL) { + 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); + } + } + + // Wait for 40us + WaitMicroseconds ((UINT32) 40, StdHeader); + + // Run DisableAllCaches on AP cores. + ApParams.StdHeader = *StdHeader; + ApParams.FunctionNumber = AP_LATE_TASK_DISABLE_CACHE; + ApParams.RelatedDataBlock = NULL; + ApParams.RelatedBlockLength = 0; + 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 (PlatformConfig->PlatformProfile.UseHtAssist) { + FamilyServices[Socket]->HtAssistInit (FamilyServices[Socket], Socket, StdHeader); + } + if (PlatformConfig->PlatformProfile.UseAtmMode) { + 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; + HT_ASSIST_FAMILY_SERVICES *FamilyServices; + + GetFeatureServicesOfCurrentCore (&HtAssistFamilyServiceTable, &FamilyServices, &ApExeParams->StdHeader); + + FamilyServices->HookDisableCache (FamilyServices, &ApExeParams->StdHeader); + + // Disable cache through CR0. + LibAmdReadCpuReg (0, &CR0Data); + CR0Data |= (0x60000000); + LibAmdWriteCpuReg (0, CR0Data); + + // Execute wbinvd + LibAmdWriteBackInvalidateCache (); + + 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; + HT_ASSIST_FAMILY_SERVICES *FamilyServices; + + // Enable cache through CR0. + LibAmdReadCpuReg (0, &CR0Data); + CR0Data &= ~(0x60000000); + LibAmdWriteCpuReg (0, CR0Data); + + GetFeatureServicesOfCurrentCore (&HtAssistFamilyServiceTable, &FamilyServices, &ApExeParams->StdHeader); + + FamilyServices->HookEnableCache (FamilyServices, &ApExeParams->StdHeader); + + return AGESA_SUCCESS; +} + +CONST CPU_FEATURE_DESCRIPTOR ROMDATA CpuFeatureHtAssist = +{ + HtAssist, + (CPU_FEAT_AFTER_POST_MTRR_SYNC | CPU_FEAT_INIT_MID_END | CPU_FEAT_S3_LATE_RESTORE_END), + IsHtAssistEnabled, + InitializeHtAssistFeature +}; |