diff options
Diffstat (limited to 'src/vendorcode/amd/agesa/f15/Proc/CPU/Family/0x15/F15PstateHpcMode.c')
| -rw-r--r-- | src/vendorcode/amd/agesa/f15/Proc/CPU/Family/0x15/F15PstateHpcMode.c | 208 |
1 files changed, 208 insertions, 0 deletions
diff --git a/src/vendorcode/amd/agesa/f15/Proc/CPU/Family/0x15/F15PstateHpcMode.c b/src/vendorcode/amd/agesa/f15/Proc/CPU/Family/0x15/F15PstateHpcMode.c new file mode 100644 index 0000000000..043845918f --- /dev/null +++ b/src/vendorcode/amd/agesa/f15/Proc/CPU/Family/0x15/F15PstateHpcMode.c @@ -0,0 +1,208 @@ +/* $NoKeywords:$ */ +/** + * @file + * + * AMD Family_15 P-state HPC mode Initialization + * + * Enables High performance Computing mode. + * + * @xrefitem bom "File Content Label" "Release Content" + * @e project: AGESA + * @e sub-project: CPU/Family/0x15 + * @e \$Revision: 57421 $ @e \$Date: 2011-08-03 19:59:42 -0600 (Wed, 03 Aug 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. + * + ****************************************************************************** + */ + +/*---------------------------------------------------------------------------------------- + * M O D U L E S U S E D + *---------------------------------------------------------------------------------------- + */ +#include "AGESA.h" +#include "amdlib.h" +#include "GeneralServices.h" +#include "cpuServices.h" +#include "cpuRegisters.h" +#include "cpuFamilyTranslation.h" +#include "heapManager.h" +#include "cpuF15PowerMgmt.h" +#include "CommonReturns.h" +#include "cpuPstateHpcMode.h" +#include "cpuPstateTables.h" +#include "Filecode.h" +CODE_GROUP (G3_DXE) +RDATA_GROUP (G3_DXE) + +#define FILECODE PROC_CPU_FAMILY_0X15_F15PSTATEHPCMODE_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 + *---------------------------------------------------------------------------------------- + */ + +/*---------------------------------------------------------------------------------------*/ +/** + * entry point for enabling High Performance Computing. + * + * This function must be run after P-states initialization and before enabling low power P-states + * + * @param[in] PstateHpcModeServices The current CPU's family services. + * @param[in] PlatformConfig Contains the runtime modifiable feature input data. + * @param[in] StdHeader Config handle for library and services. + * + * @retval AGESA_SUCCESS Always succeeds. + * + */ +AGESA_STATUS +STATIC +F15InitializePstateHpcMode ( + IN PSTATE_HPC_MODE_FAMILY_SERVICES *PstateHpcModeServices, + IN PLATFORM_CONFIGURATION *PlatformConfig, + IN AMD_CONFIG_PARAMS *StdHeader + ) +{ + UINT8 OriginalPstate; + UINT8 X; + UINT32 Socket; + UINT32 Module; + UINT32 Core; + UINT32 SocketCount; + UINT32 i; + UINT64 MsrData; + PCI_ADDR PciAddr; + AGESA_STATUS IgnoredSts; + AGESA_STATUS Flag; + F15_CPB_CTRL_REGISTER CpbCtrl; + CLK_PWR_TIMING_CTRL2_REGISTER CPTC2; + HTC_REGISTER Htc; + CPU_SPECIFIC_SERVICES *FamilySpecificServices; + LOCATE_HEAP_PTR LocateHeapParams; + PSTATE_LEVELING *PStateLevelingBuffer; + PSTATE_LEVELING *PStateLevelingBufferTemp; + + Flag = AGESA_SUCCESS; + // Locate P-State data buffer + LocateHeapParams.BufferHandle = AMD_PSTATE_DATA_BUFFER_HANDLE; + if (HeapLocateBuffer (&LocateHeapParams, StdHeader) != AGESA_SUCCESS) { + Flag = AGESA_ERROR; + PStateLevelingBuffer = NULL; + SocketCount = 1; + } else { + PStateLevelingBuffer = ((S_CPU_AMD_PSTATE *) (LocateHeapParams.BufferPtr))->PStateLevelingStruc; + SocketCount = ((S_CPU_AMD_PSTATE *) (LocateHeapParams.BufferPtr))->TotalSocketInSystem; + } + + // Step1. Read MSRC001_0063[CurPstate] and store the value in OriginalPstate. + LibAmdMsrRead (MSR_PSTATE_STS, &MsrData, StdHeader); + OriginalPstate = (UINT8) (((PSTATE_STS_MSR *) &MsrData)->CurPstate); + // Step2. Write 0 to MSRC001_0062[PstateCmd]. + // Step3. Wait for MSRC001_0063[CurPstate] == 0. + GetCpuServicesOfCurrentCore ((CONST CPU_SPECIFIC_SERVICES **)&FamilySpecificServices, StdHeader); + FamilySpecificServices->TransitionPstate (FamilySpecificServices, (UINT8) 0, (BOOLEAN) TRUE, StdHeader); + // Step4. If D18F4x15C[NumBoostStates] != D18F3xDC[PstateMaxVal], execute the following sequence + // 4.A Set X = D18F4x15C[NumBoostStates]. + // 4.B If X+1 == D18F3xDC[PstateMaxVal], go to step 5. + // 4.C Copy MSRC001_00[6B:64] indexed by P-state X to MSRC001_00[6B:64] indexed by P-state X+1. + // 4.D Write 0b to PstateEn from MSRC001_00[6B:64] indexed by P-state X+1. + // 4.E Set X = X+1 and go to step B. + IdentifyCore (StdHeader, &Socket, &Module, &Core, &IgnoredSts); + GetPciAddress (StdHeader, Socket, Module, &PciAddr, &IgnoredSts); + PciAddr.Address.Function = FUNC_4; + PciAddr.Address.Register = CPB_CTRL_REG; + LibAmdPciRead (AccessWidth32, PciAddr, &CpbCtrl, StdHeader); // F4x15C + + PciAddr.Address.Function = FUNC_3; + PciAddr.Address.Register = CPTC2_REG; + LibAmdPciRead (AccessWidth32, PciAddr, &CPTC2, StdHeader); // F3xDC + + // In case that F3xDC[PstateMaxVal] was increased by Low Power Pstate function during the first time of running that function. + // Get the real PstateMaxVal by checking C001_00[6B:64][PsEnable] + while (CPTC2.PstateMaxVal != 0) { + LibAmdMsrRead ((PS_REG_BASE + CPTC2.PstateMaxVal), &MsrData, StdHeader); + if ((MsrData & BIT63) == BIT63) { + break; + } + CPTC2.PstateMaxVal--; + } + + if (CpbCtrl.NumBoostStates != CPTC2.PstateMaxVal) { + X = (UINT8) CpbCtrl.NumBoostStates; + while ((X + 1) < (UINT8) CPTC2.PstateMaxVal) { + LibAmdMsrRead ((PS_REG_BASE + X), &MsrData, StdHeader); + MsrData &= ~BIT63; + LibAmdMsrWrite ((PS_REG_BASE + X + 1), &MsrData, StdHeader); + // Make sure Agesa doesn't declared the P-states modified by these algorithms to the OS + if (PStateLevelingBuffer != NULL) { + PStateLevelingBufferTemp = PStateLevelingBuffer; + for (i = 0; i < SocketCount; i++) { + PStateLevelingBufferTemp->PStateCoreStruct[0].PStateStruct[X + 1].PStateEnable = 0; + //Calculate next node buffer address + PStateLevelingBufferTemp = (PSTATE_LEVELING *) ((UINT8 *) PStateLevelingBufferTemp + (UINTN) sizeof (PSTATE_LEVELING) + (UINTN) (PStateLevelingBufferTemp->PStateCoreStruct[0].PStateMaxValue * sizeof (S_PSTATE_VALUES))); + } + } + X++; + } + } + // Step5. Write OriginalPstate to MSRC001_0062[PstateCmd]. + // Step6. Wait for MSRC001_0063[CurPstate] == OriginalPstate. + FamilySpecificServices->TransitionPstate (FamilySpecificServices, OriginalPstate, (BOOLEAN) TRUE, StdHeader); + // Step7. Write D18F3x64[HtcPstateLimit] with the value from D18F3xDC[PstateMaxVal] + PciAddr.Address.Register = HTC_REG; + LibAmdPciRead (AccessWidth32, PciAddr, &Htc, StdHeader); // F3x64 + Htc.HtcPstateLimit = CPTC2.PstateMaxVal; + LibAmdPciWrite (AccessWidth32, PciAddr, &Htc, StdHeader); // F3x64 + + return Flag; +} + + + +CONST PSTATE_HPC_MODE_FAMILY_SERVICES ROMDATA F15PstateHpcSupport = +{ + 0, + F15InitializePstateHpcMode +}; |