diff options
Diffstat (limited to 'src/vendorcode/amd/agesa/f14/Proc/CPU/Family/0x14/F14IoCstate.c')
| -rw-r--r-- | src/vendorcode/amd/agesa/f14/Proc/CPU/Family/0x14/F14IoCstate.c | 285 |
1 files changed, 285 insertions, 0 deletions
diff --git a/src/vendorcode/amd/agesa/f14/Proc/CPU/Family/0x14/F14IoCstate.c b/src/vendorcode/amd/agesa/f14/Proc/CPU/Family/0x14/F14IoCstate.c new file mode 100644 index 0000000000..43f0c68bbb --- /dev/null +++ b/src/vendorcode/amd/agesa/f14/Proc/CPU/Family/0x14/F14IoCstate.c @@ -0,0 +1,285 @@ +/* $NoKeywords:$ */ +/** + * @file + * + * AMD Family_14 IO C-state feature support functions. + * + * Provides the functions necessary to initialize the IO C-state feature. + * + * @xrefitem bom "File Content Label" "Release Content" + * @e project: AGESA + * @e sub-project: CPU/F14 + * @e \$Revision: 34897 $ @e \$Date: 2010-07-14 10:07:10 +0800 (Wed, 14 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 "cpuServices.h" +#include "cpuFeatures.h" +#include "cpuIoCstate.h" +#include "cpuF14PowerMgmt.h" +#include "cpuLateInit.h" +#include "cpuApicUtilities.h" +#include "CommonReturns.h" +#include "Filecode.h" +#define FILECODE PROC_CPU_FAMILY_0X14_F14IOCSTATE_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 +F14InitializeIoCstateOnCore ( + IN VOID *CstateBaseMsr, + IN AMD_CONFIG_PARAMS *StdHeader + ); + + +/*---------------------------------------------------------------------------------------- + * E X P O R T E D F U N C T I O N S + *---------------------------------------------------------------------------------------- + */ + +/*---------------------------------------------------------------------------------------*/ +/** + * Enable IO Cstate on a family 14h CPU. + * Implement steps 1 to 3 of BKDG section 2.5.4.2.9 BIOS Requirements for Initialization + * + * @param[in] IoCstateServices Pointer to this CPU's IO Cstate family services. + * @param[in] EntryPoint Timepoint designator. + * @param[in] PlatformConfig Contains the runtime modifiable feature input data. + * @param[in] StdHeader Config Handle for library, services. + * + * @return AGESA_SUCCESS Always succeeds. + * + */ +AGESA_STATUS +STATIC +F14InitializeIoCstate ( + IN IO_CSTATE_FAMILY_SERVICES *IoCstateServices, + IN UINT64 EntryPoint, + IN PLATFORM_CONFIGURATION *PlatformConfig, + IN AMD_CONFIG_PARAMS *StdHeader + ) +{ + + UINT32 i; + UINT32 MaxEnabledPstate; + UINT32 PciRegister; + UINT64 MsrRegister; + AP_TASK TaskPtr; + PCI_ADDR PciAddress; + + if ((EntryPoint & CPU_FEAT_AFTER_PM_INIT) != 0) { + for (i = MSR_PSTATE_7; i > MSR_PSTATE_0; i--) { + LibAmdMsrRead (i, &MsrRegister, StdHeader); + if (((PSTATE_MSR *) &MsrRegister)->PsEnable == 1) { + break; + } + } + MaxEnabledPstate = i - MSR_PSTATE_0; + // Initialize MSRC001_0073[CstateAddr] on each core to a region of + // the IO address map with 8 consecutive available addresses. + MsrRegister = 0; + ((CSTATE_ADDRESS_MSR *) &MsrRegister)->CstateAddr = PlatformConfig->CStateIoBaseAddress; + ASSERT ((((CSTATE_ADDRESS_MSR *) &MsrRegister)->CstateAddr != 0) && + (((CSTATE_ADDRESS_MSR *) &MsrRegister)->CstateAddr <= 0xFFF8)); + + TaskPtr.FuncAddress.PfApTaskI = F14InitializeIoCstateOnCore; + TaskPtr.DataTransfer.DataSizeInDwords = 2; + TaskPtr.DataTransfer.DataPtr = &MsrRegister; + TaskPtr.DataTransfer.DataTransferFlags = 0; + TaskPtr.ExeFlags = WAIT_FOR_CORE; + ApUtilRunCodeOnAllLocalCoresAtEarly (&TaskPtr, StdHeader, NULL); + + // Program D18F4x1A8[PService] to the index of lowest-performance + // P-state with MSRC001_00[6B:64][PstateEn]==1 on core 0. + PciAddress.AddressValue = CPU_STATE_PM_CTRL0_PCI_ADDR; + LibAmdPciRead (AccessWidth32, PciAddress, &PciRegister, StdHeader); + ((CPU_STATE_PM_CTRL0_REGISTER *) &PciRegister)->PService = MaxEnabledPstate; + LibAmdPciWrite (AccessWidth32, PciAddress, &PciRegister, StdHeader); + + // Program D18F4x1AC[CstPminEn] to 1. + PciAddress.AddressValue = CPU_STATE_PM_CTRL1_PCI_ADDR; + LibAmdPciRead (AccessWidth32, PciAddress, &PciRegister, StdHeader); + ((CPU_STATE_PM_CTRL1_REGISTER *) &PciRegister)->CstPminEn = 1; + LibAmdPciWrite (AccessWidth32, PciAddress, &PciRegister, StdHeader); + } + return AGESA_SUCCESS; +} + +/*---------------------------------------------------------------------------------------*/ +/** + * Enable C-State on a family 14h core. + * + * @param[in] CstateBaseMsr MSR value to write to C001_0073 as determined by core 0. + * @param[in] StdHeader Config Handle for library, services. + * + */ +VOID +STATIC +F14InitializeIoCstateOnCore ( + IN VOID *CstateBaseMsr, + IN AMD_CONFIG_PARAMS *StdHeader + ) +{ + // Initialize MSRC001_0073[CstateAddr] on each core + LibAmdMsrWrite (MSR_CSTATE_ADDRESS, (UINT64 *) CstateBaseMsr, StdHeader); +} + +/*---------------------------------------------------------------------------------------*/ +/** + * Returns the size of CST object + * + * @param[in] IoCstateServices IO Cstate services. + * @param[in] PlatformConfig Contains the runtime modifiable feature input data + * @param[in] StdHeader Config Handle for library, services. + * + * @retval CstObjSize Size of CST Object + * + */ +UINT32 +STATIC +F14GetAcpiCstObj ( + IN IO_CSTATE_FAMILY_SERVICES *IoCstateServices, + IN PLATFORM_CONFIGURATION *PlatformConfig, + IN AMD_CONFIG_PARAMS *StdHeader + ) +{ + return (CST_HEADER_SIZE + CST_BODY_SIZE); +} + +/*---------------------------------------------------------------------------------------*/ +/** + * Routine to generate the C-State ACPI objects + * + * @param[in] IoCstateServices IO Cstate services. + * @param[in] LocalApicId Local Apic Id for each core. + * @param[in] **PstateAcpiBufferPtr Pointer to the Acpi Buffer Pointer. + * @param[in] StdHeader Config Handle for library, services. + * + */ +VOID +STATIC +F14CreateAcpiCstObj ( + IN IO_CSTATE_FAMILY_SERVICES *IoCstateServices, + IN UINT8 LocalApicId, + IN OUT VOID **PstateAcpiBufferPtr, + IN AMD_CONFIG_PARAMS *StdHeader + ) +{ + UINT64 MsrData; + CST_HEADER_STRUCT *CstHeaderPtr; + CST_BODY_STRUCT *CstBodyPtr; + + // Read from MSR C0010073 to obtain CstateAddr + LibAmdMsrRead (MSR_CSTATE_ADDRESS, &MsrData, StdHeader); + ASSERT ((((CSTATE_ADDRESS_MSR *) &MsrData)->CstateAddr != 0) && + (((CSTATE_ADDRESS_MSR *) &MsrData)->CstateAddr <= 0xFFF8)); + + // Typecast the pointer + CstHeaderPtr = (CST_HEADER_STRUCT *) *PstateAcpiBufferPtr; + + // Set CST Header + CstHeaderPtr->NameOpcode = NAME_OPCODE; + CstHeaderPtr->CstName_a__ = CST_NAME__; + CstHeaderPtr->CstName_a_C = CST_NAME_C; + CstHeaderPtr->CstName_a_S = CST_NAME_S; + CstHeaderPtr->CstName_a_T = CST_NAME_T; + + // Typecast the pointer + CstHeaderPtr++; + CstBodyPtr = (CST_BODY_STRUCT *) CstHeaderPtr; + + // Set CST Body + CstBodyPtr->PkgOpcode = PACKAGE_OPCODE; + CstBodyPtr->PkgLength = CST_LENGTH; + CstBodyPtr->PkgElements = CST_NUM_OF_ELEMENTS; + CstBodyPtr->BytePrefix = BYTE_PREFIX_OPCODE; + CstBodyPtr->Count = CST_COUNT; + CstBodyPtr->PkgOpcode2 = PACKAGE_OPCODE; + CstBodyPtr->PkgLength2 = CST_PKG_LENGTH; + CstBodyPtr->PkgElements2 = CST_PKG_ELEMENTS; + CstBodyPtr->BufferOpcode = BUFFER_OPCODE; + CstBodyPtr->BufferLength = CST_SUBPKG_LENGTH; + CstBodyPtr->BufferElements = CST_SUBPKG_ELEMENTS; + CstBodyPtr->BufferOpcode2 = BUFFER_OPCODE; + CstBodyPtr->GdrOpcode = GENERIC_REG_DESCRIPTION; + CstBodyPtr->GdrLength = CST_GDR_LENGTH; + CstBodyPtr->AddrSpaceId = GDR_ASI_SYSTEM_IO; + CstBodyPtr->RegBitWidth = 0x08; + CstBodyPtr->RegBitOffset = 0x00; + CstBodyPtr->AddressSize = GDR_ASZ_BYTE_ACCESS; + CstBodyPtr->RegisterAddr = ((CSTATE_ADDRESS_MSR *) &MsrData)->CstateAddr + 1; + CstBodyPtr->EndTag = 0x0079; + CstBodyPtr->BytePrefix2 = BYTE_PREFIX_OPCODE; + CstBodyPtr->Type = CST_C2_TYPE; + CstBodyPtr->WordPrefix = WORD_PREFIX_OPCODE; + CstBodyPtr->Latency = 0x64; + CstBodyPtr->DWordPrefix = DWORD_PREFIX_OPCODE; + CstBodyPtr->Power = 0; + + CstBodyPtr++; + + //Update the pointer + *PstateAcpiBufferPtr = CstBodyPtr; +} + +CONST IO_CSTATE_FAMILY_SERVICES ROMDATA F14IoCstateSupport = +{ + 0, + (PF_IO_CSTATE_IS_SUPPORTED) CommonReturnTrue, + F14InitializeIoCstate, + F14GetAcpiCstObj, + F14CreateAcpiCstObj, + (PF_IO_CSTATE_IS_CSD_GENERATED) CommonReturnFalse +};
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