diff options
author | Siyuan Wang <wangsiyuanbuaa@gmail.com> | 2013-07-25 15:14:15 +0800 |
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committer | Bruce Griffith <Bruce.Griffith@se-eng.com> | 2013-08-04 05:40:37 +0200 |
commit | affe85fbc8a13d35960aa92ae87cbb6330ad253f (patch) | |
tree | 9c1ace69f12b06b6544faf041994aa4288fb2e45 /src/vendorcode/amd/agesa/f16kb/Proc/CPU/Family/0x16/KB/F16KbCpb.c | |
parent | ae8d06969bdde9b1250bc3c4ad93f5db408dae98 (diff) |
AMD Kabini: Add AGESA/PI code for new processor family
Change-Id: Icb6f64e2e3cfd678fb4fb4f13f0e4b678d5acc4a
Signed-off-by: Siyuan Wang <SiYuan.Wang@amd.com>
Signed-off-by: Siyuan Wang <wangsiyuanbuaa@gmail.com>
Reviewed-by: Nick Dill <nick.dill@se-eng.com>
Tested-by: Bruce Griffith <bruce.griffith@se-eng.com>
Reviewed-on: http://review.coreboot.org/3836
Tested-by: build bot (Jenkins)
Reviewed-by: Martin Roth <martin.roth@se-eng.com>
Diffstat (limited to 'src/vendorcode/amd/agesa/f16kb/Proc/CPU/Family/0x16/KB/F16KbCpb.c')
-rw-r--r-- | src/vendorcode/amd/agesa/f16kb/Proc/CPU/Family/0x16/KB/F16KbCpb.c | 195 |
1 files changed, 195 insertions, 0 deletions
diff --git a/src/vendorcode/amd/agesa/f16kb/Proc/CPU/Family/0x16/KB/F16KbCpb.c b/src/vendorcode/amd/agesa/f16kb/Proc/CPU/Family/0x16/KB/F16KbCpb.c new file mode 100644 index 0000000000..db00c58e95 --- /dev/null +++ b/src/vendorcode/amd/agesa/f16kb/Proc/CPU/Family/0x16/KB/F16KbCpb.c @@ -0,0 +1,195 @@ +/* $NoKeywords:$ */ +/** + * @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 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 +}; |