| /* $NoKeywords:$ */ |
| /** |
| * @file |
| * |
| * AMD Family_16 CPB Initialization |
| * |
| * Enables core performance boost. |
| * |
| * @xrefitem bom "File Content Label" "Release Content" |
| * @e project: AGESA |
| * @e sub-project: CPU/0x16/KB |
| * @e \$Revision: 84150 $ @e \$Date: 2012-12-12 15:46:25 -0600 (Wed, 12 Dec 2012) $ |
| * |
| */ |
| /* |
| ****************************************************************************** |
| * |
| * Copyright (c) 2008 - 2013, 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 "cpuFamilyTranslation.h" |
| #include "cpuF16PowerMgmt.h" |
| #include "F16KbPowerMgmt.h" |
| #include "cpuFeatures.h" |
| #include "cpuCpb.h" |
| #include "Filecode.h" |
| CODE_GROUP (G3_DXE) |
| RDATA_GROUP (G3_DXE) |
| |
| #define FILECODE PROC_CPU_FAMILY_0X16_KB_F16KBCPB_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 |
| *---------------------------------------------------------------------------------------- |
| */ |
| BOOLEAN |
| STATIC |
| F16KbIsCpbSupported ( |
| IN CPB_FAMILY_SERVICES *CpbServices, |
| IN PLATFORM_CONFIGURATION *PlatformConfig, |
| IN UINT32 Socket, |
| IN AMD_CONFIG_PARAMS *StdHeader |
| ); |
| |
| AGESA_STATUS |
| STATIC |
| F16KbInitializeCpb ( |
| IN CPB_FAMILY_SERVICES *CpbServices, |
| IN PLATFORM_CONFIGURATION *PlatformConfig, |
| IN UINT64 EntryPoint, |
| IN UINT32 Socket, |
| IN AMD_CONFIG_PARAMS *StdHeader |
| ); |
| |
| /*---------------------------------------------------------------------------------------*/ |
| /** |
| * BSC entry point for checking whether or not CPB is supported. |
| * |
| * @param[in] CpbServices The current CPU's family services. |
| * @param[in] PlatformConfig Contains the runtime modifiable feature input data. |
| * @param[in] Socket Zero based socket number to check. |
| * @param[in] StdHeader Config handle for library and services. |
| * |
| * @retval TRUE CPB is supported. |
| * @retval FALSE CPB is not supported. |
| * |
| */ |
| BOOLEAN |
| STATIC |
| F16KbIsCpbSupported ( |
| IN CPB_FAMILY_SERVICES *CpbServices, |
| IN PLATFORM_CONFIGURATION *PlatformConfig, |
| IN UINT32 Socket, |
| IN AMD_CONFIG_PARAMS *StdHeader |
| ) |
| { |
| UINT64 MsrData; |
| BOOLEAN CpbSupported; |
| CPB_CTRL_REGISTER CpbControl; |
| PCI_ADDR PciAddress; |
| |
| CpbSupported = FALSE; |
| |
| PciAddress.AddressValue = CPB_CTRL_PCI_ADDR; |
| LibAmdPciRead (AccessWidth32, PciAddress, &CpbControl, StdHeader); |
| if (CpbControl.NumBoostStates != 0) { |
| LibAmdMsrRead (MSR_PSTATE_0, &MsrData, StdHeader); |
| if (((PSTATE_MSR *) &MsrData)->PsEnable == 1) { |
| CpbSupported = TRUE; |
| } |
| } |
| return CpbSupported; |
| } |
| |
| |
| /*---------------------------------------------------------------------------------------*/ |
| /** |
| * BSC entry point for enabling Core Performance Boost. |
| * |
| * Set up D18F4x15C[BoostSrc] and start the PDMs according to the BKDG. |
| * |
| * @param[in] CpbServices The current CPU's family services. |
| * @param[in] PlatformConfig Contains the runtime modifiable feature input data. |
| * @param[in] EntryPoint Current CPU feature dispatch point. |
| * @param[in] Socket Zero based socket number to check. |
| * @param[in] StdHeader Config handle for library and services. |
| * |
| * @retval AGESA_SUCCESS Always succeeds. |
| * |
| */ |
| AGESA_STATUS |
| STATIC |
| F16KbInitializeCpb ( |
| IN CPB_FAMILY_SERVICES *CpbServices, |
| IN PLATFORM_CONFIGURATION *PlatformConfig, |
| IN UINT64 EntryPoint, |
| IN UINT32 Socket, |
| IN AMD_CONFIG_PARAMS *StdHeader |
| ) |
| { |
| CPB_CTRL_REGISTER CpbControl; |
| PCI_ADDR PciAddress; |
| F16_PSTATE_MSR PstateMsrData; |
| UINT32 Pbx; |
| |
| if ((EntryPoint & (CPU_FEAT_AFTER_POST_MTRR_SYNC | CPU_FEAT_AFTER_RESUME_MTRR_SYNC)) != 0) { |
| PciAddress.AddressValue = CPB_CTRL_PCI_ADDR; |
| LibAmdPciRead (AccessWidth32, PciAddress, &CpbControl, StdHeader); |
| if ((CpbControl.BoostSrc == 0) && (CpbControl.NumBoostStates != 0)) { |
| // If any boosted P-state is still enabled, set BoostSrc = 1. |
| for (Pbx = 0; Pbx < CpbControl.NumBoostStates; Pbx++) { |
| LibAmdMsrRead (PS_REG_BASE + Pbx, (UINT64 *)&PstateMsrData, StdHeader); |
| if (PstateMsrData.PsEnable == 1) { |
| CpbControl.BoostSrc = 1; |
| LibAmdPciWrite (AccessWidth32, PciAddress, &CpbControl, StdHeader); |
| break; |
| } |
| } |
| } |
| } |
| return AGESA_SUCCESS; |
| } |
| |
| CONST CPB_FAMILY_SERVICES ROMDATA F16KbCpbSupport = |
| { |
| 0, |
| F16KbIsCpbSupported, |
| F16KbInitializeCpb |
| }; |