| /* $NoKeywords:$ */ |
| /** |
| * @file |
| * |
| * AMD Family_16 Kabini C6 C-state feature support functions. |
| * |
| * Provides the functions necessary to initialize the C6 feature. |
| * |
| * @xrefitem bom "File Content Label" "Release Content" |
| * @e project: AGESA |
| * @e sub-project: CPU/F16/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 "Ids.h" |
| #include "cpuRegisters.h" |
| #include "cpuFeatures.h" |
| #include "cpuC6State.h" |
| #include "cpuApicUtilities.h" |
| #include "cpuF16PowerMgmt.h" |
| #include "F16KbPowerMgmt.h" |
| #include "cpuServices.h" |
| #include "cpuFamilyTranslation.h" |
| #include "Filecode.h" |
| CODE_GROUP (G3_DXE) |
| RDATA_GROUP (G3_DXE) |
| |
| #define FILECODE PROC_CPU_FAMILY_0X16_KB_F16KBC6STATE_FILECODE |
| |
| /*---------------------------------------------------------------------------------------- |
| * D E F I N I T I O N S A N D M A C R O S |
| *---------------------------------------------------------------------------------------- |
| */ |
| BOOLEAN |
| STATIC |
| F16KbIsC6Supported ( |
| IN C6_FAMILY_SERVICES *C6Services, |
| IN UINT32 Socket, |
| IN PLATFORM_CONFIGURATION *PlatformConfig, |
| IN AMD_CONFIG_PARAMS *StdHeader |
| ); |
| |
| AGESA_STATUS |
| STATIC |
| F16KbInitializeC6 ( |
| IN C6_FAMILY_SERVICES *C6Services, |
| IN UINT64 EntryPoint, |
| IN PLATFORM_CONFIGURATION *PlatformConfig, |
| IN AMD_CONFIG_PARAMS *StdHeader |
| ); |
| |
| /*---------------------------------------------------------------------------------------- |
| * 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 |
| *---------------------------------------------------------------------------------------- |
| */ |
| |
| /*---------------------------------------------------------------------------------------*/ |
| /** |
| * Is C6 supported on this CPU |
| * |
| * @param[in] C6Services Pointer to this CPU's C6 family services. |
| * @param[in] Socket This core's zero-based socket number. |
| * @param[in] PlatformConfig Contains the runtime modifiable feature input data. |
| * @param[in] StdHeader Config Handle for library, services. |
| * |
| * @retval TRUE C6 state is supported. |
| * @retval FALSE C6 state is not supported. |
| * |
| */ |
| BOOLEAN |
| STATIC |
| F16KbIsC6Supported ( |
| IN C6_FAMILY_SERVICES *C6Services, |
| IN UINT32 Socket, |
| IN PLATFORM_CONFIGURATION *PlatformConfig, |
| IN AMD_CONFIG_PARAMS *StdHeader |
| ) |
| { |
| return (IsFeatureEnabled (IoCstate, PlatformConfig, StdHeader)); |
| } |
| |
| /*---------------------------------------------------------------------------------------*/ |
| /** |
| * Enable C6 on a family 16h Kabini CPU. |
| * |
| * @param[in] C6Services Pointer to this CPU's C6 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 |
| F16KbInitializeC6 ( |
| IN C6_FAMILY_SERVICES *C6Services, |
| IN UINT64 EntryPoint, |
| IN PLATFORM_CONFIGURATION *PlatformConfig, |
| IN AMD_CONFIG_PARAMS *StdHeader |
| ) |
| { |
| PCI_ADDR PciAddress; |
| CSTATE_CTRL1_REGISTER CstateCtrl1; |
| POPUP_PSTATE_REGISTER PopDownPstate; |
| CLK_PWR_TIMING_CTRL2_REGISTER ClkPwrTimingCtrl2; |
| |
| if ((EntryPoint & CPU_FEAT_AFTER_PM_INIT) != 0) { |
| // Initialize F4x118 |
| PciAddress.AddressValue = CSTATE_CTRL1_PCI_ADDR; |
| LibAmdPciRead (AccessWidth32, PciAddress, &CstateCtrl1, StdHeader); |
| // Set C-state Action Field 0 |
| // bits[8] PwrGateEnCstAct0 = 0x1 |
| // bits[9] PwrOffEnCstAct0 = 0x1 |
| CstateCtrl1.PwrGateEnCstAct0 = 1; |
| CstateCtrl1.PwrOffEnCstAct0 = 1; |
| // Set C-state Action Field 1 |
| // bits[24] PwrGateEnCstAct1 = 0x1 |
| // bits[25] PwrOffEnCstAct1 = 0x1 |
| CstateCtrl1.PwrGateEnCstAct1 = 1; |
| CstateCtrl1.PwrOffEnCstAct1 = 1; |
| LibAmdPciWrite (AccessWidth32, PciAddress, &CstateCtrl1, StdHeader); |
| |
| // Initialize F3xA8[PopDownPstate] = F3xDC[HwPstateMaxVal] |
| PciAddress.AddressValue = CPTC2_PCI_ADDR; |
| LibAmdPciRead (AccessWidth32, PciAddress, &ClkPwrTimingCtrl2, StdHeader); |
| PciAddress.AddressValue = POPUP_PSTATE_PCI_ADDR; |
| LibAmdPciRead (AccessWidth32, PciAddress, &PopDownPstate, StdHeader); |
| PopDownPstate.PopDownPstate = ClkPwrTimingCtrl2.HwPstateMaxVal; |
| LibAmdPciWrite (AccessWidth32, PciAddress, &PopDownPstate, StdHeader); |
| } else if ((EntryPoint & (CPU_FEAT_AFTER_RESUME_MTRR_SYNC | CPU_FEAT_BEFORE_RELINQUISH_AP)) != 0) { |
| // Initialize F4x118 |
| PciAddress.AddressValue = CSTATE_CTRL1_PCI_ADDR; |
| LibAmdPciRead (AccessWidth32, PciAddress, &CstateCtrl1, StdHeader); |
| // Set C-state Action Field 0 |
| // bits[1] CacheFlushEnCstAct0 = 0x1 |
| CstateCtrl1.CacheFlushEnCstAct0 = 1; |
| // Set C-state Action Field 1 |
| // bits[17] CacheFlushEnCstAct1 = 0x1 |
| CstateCtrl1.CacheFlushEnCstAct1 = 1; |
| LibAmdPciWrite (AccessWidth32, PciAddress, &CstateCtrl1, StdHeader); |
| } |
| return AGESA_SUCCESS; |
| } |
| |
| CONST C6_FAMILY_SERVICES ROMDATA F16KbC6Support = |
| { |
| 0, |
| F16KbIsC6Supported, |
| F16KbInitializeC6, |
| ReloadMicrocodePatchAfterMemInit |
| }; |