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Diffstat (limited to 'src/vendorcode/amd/agesa/f15tn/Proc/CPU/cpuWarmReset.c')
| -rw-r--r-- | src/vendorcode/amd/agesa/f15tn/Proc/CPU/cpuWarmReset.c | 261 |
1 files changed, 261 insertions, 0 deletions
diff --git a/src/vendorcode/amd/agesa/f15tn/Proc/CPU/cpuWarmReset.c b/src/vendorcode/amd/agesa/f15tn/Proc/CPU/cpuWarmReset.c new file mode 100644 index 0000000000..a7af298a32 --- /dev/null +++ b/src/vendorcode/amd/agesa/f15tn/Proc/CPU/cpuWarmReset.c @@ -0,0 +1,261 @@ +/* $NoKeywords:$ */ +/** + * @file + * + * AMD CPU Warm Reset Implementation. + * + * Implement Warm Reset Interface. + * + * @xrefitem bom "File Content Label" "Release Content" + * @e project: AGESA + * @e sub-project: CPU + * @e \$Revision: 63425 $ @e \$Date: 2011-12-22 11:24:10 -0600 (Thu, 22 Dec 2011) $ + * + */ +/* + ****************************************************************************** + * + * Copyright 2008 - 2012 ADVANCED MICRO DEVICES, INC. All Rights Reserved. + * + * AMD is granting you permission to use this software (the Materials) + * pursuant to the terms and conditions of your Software License Agreement + * with AMD. This header does *NOT* give you permission to use the Materials + * or any rights under AMD's intellectual property. Your use of any portion + * of these Materials shall constitute your acceptance of those terms and + * conditions. If you do not agree to the terms and conditions of the Software + * License Agreement, please do not use any portion of these Materials. + * + * CONFIDENTIALITY: The Materials and all other information, identified as + * confidential and provided to you by AMD shall be kept confidential in + * accordance with the terms and conditions of the Software License Agreement. + * + * LIMITATION OF LIABILITY: THE MATERIALS AND ANY OTHER RELATED INFORMATION + * PROVIDED TO YOU BY AMD ARE PROVIDED "AS IS" WITHOUT ANY EXPRESS OR IMPLIED + * WARRANTY OF ANY KIND, INCLUDING BUT NOT LIMITED TO WARRANTIES OF + * MERCHANTABILITY, NONINFRINGEMENT, TITLE, FITNESS FOR ANY PARTICULAR PURPOSE, + * OR WARRANTIES ARISING FROM CONDUCT, COURSE OF DEALING, OR USAGE OF TRADE. + * IN NO EVENT SHALL AMD OR ITS LICENSORS BE LIABLE FOR ANY DAMAGES WHATSOEVER + * (INCLUDING, WITHOUT LIMITATION, DAMAGES FOR LOSS OF PROFITS, BUSINESS + * INTERRUPTION, OR LOSS OF INFORMATION) ARISING OUT OF AMD'S NEGLIGENCE, + * GROSS NEGLIGENCE, THE USE OF OR INABILITY TO USE THE MATERIALS OR ANY OTHER + * RELATED INFORMATION PROVIDED TO YOU BY AMD, EVEN IF AMD HAS BEEN ADVISED OF + * THE POSSIBILITY OF SUCH DAMAGES. BECAUSE SOME JURISDICTIONS PROHIBIT THE + * EXCLUSION OR LIMITATION OF LIABILITY FOR CONSEQUENTIAL OR INCIDENTAL DAMAGES, + * THE ABOVE LIMITATION MAY NOT APPLY TO YOU. + * + * AMD does not assume any responsibility for any errors which may appear in + * the Materials or any other related information provided to you by AMD, or + * result from use of the Materials or any related information. + * + * You agree that you will not reverse engineer or decompile the Materials. + * + * NO SUPPORT OBLIGATION: AMD is not obligated to furnish, support, or make any + * further information, software, technical information, know-how, or show-how + * available to you. Additionally, AMD retains the right to modify the + * Materials at any time, without notice, and is not obligated to provide such + * modified Materials to you. + * + * U.S. GOVERNMENT RESTRICTED RIGHTS: The Materials are provided with + * "RESTRICTED RIGHTS." Use, duplication, or disclosure by the Government is + * subject to the restrictions as set forth in FAR 52.227-14 and + * DFAR252.227-7013, et seq., or its successor. Use of the Materials by the + * Government constitutes acknowledgement of AMD's proprietary rights in them. + * + * EXPORT ASSURANCE: You agree and certify that neither the Materials, nor any + * direct product thereof will be exported directly or indirectly, into any + * country prohibited by the United States Export Administration Act and the + * regulations thereunder, without the required authorization from the U.S. + * government nor will be used for any purpose prohibited by the same. + ****************************************************************************** + */ + +/*---------------------------------------------------------------------------------------- + * M O D U L E S U S E D + *---------------------------------------------------------------------------------------- + */ + +#include "AGESA.h" +#include "cpuRegisters.h" +#include "cpuServices.h" +#include "cpuFamilyTranslation.h" +#include "Filecode.h" +CODE_GROUP (G1_PEICC) +RDATA_GROUP (G1_PEICC) + +#define FILECODE PROC_CPU_CPUWARMRESET_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 + *---------------------------------------------------------------------------------------- + */ + +/*---------------------------------------------------------------------------------------*/ +/** + * This function will set the CPU register warm reset bits. + * + * Note: This function will be called by UEFI BIOS's + * The UEFI wrapper code should register this function, to be called back later point + * in time, before the wrapper code does warm reset. + * + * @param[in] StdHeader Config handle for library and services + * @param[in] Request Indicate warm reset status + * + *--------------------------------------------------------------------------------------- + **/ +VOID +SetWarmResetFlag ( + IN AMD_CONFIG_PARAMS *StdHeader, + IN WARM_RESET_REQUEST *Request + ) +{ + CPU_SPECIFIC_SERVICES *FamilySpecificServices; + FamilySpecificServices = NULL; + + GetCpuServicesOfCurrentCore ((CONST CPU_SPECIFIC_SERVICES **)&FamilySpecificServices, StdHeader); + FamilySpecificServices->SetWarmResetFlag (FamilySpecificServices, StdHeader, Request); +} + +/*---------------------------------------------------------------------------------------*/ +/** + * This function will get the CPU register warm reset bits. + * + * Note: This function will be called by UEFI BIOS's + * The UEFI wrapper code should register this function, to be called back later point + * in time, before the wrapper code does warm reset. + * + * @param[in] StdHeader Config handle for library and services + * @param[out] Request Indicate warm reset status + * + *--------------------------------------------------------------------------------------- + **/ +VOID +GetWarmResetFlag ( + IN AMD_CONFIG_PARAMS *StdHeader, + OUT WARM_RESET_REQUEST *Request + ) +{ + CPU_SPECIFIC_SERVICES *FamilySpecificServices; + FamilySpecificServices = NULL; + + GetCpuServicesOfCurrentCore ((CONST CPU_SPECIFIC_SERVICES **)&FamilySpecificServices, StdHeader); + FamilySpecificServices->GetWarmResetFlag (FamilySpecificServices, StdHeader, Request); + + switch (StdHeader->Func) { + case AMD_INIT_RESET: + Request->PostStage = (UINT8) WR_STATE_RESET; + break; + case AMD_INIT_EARLY: + Request->PostStage = (UINT8) WR_STATE_EARLY; + break; + case AMD_INIT_POST: + // Fall through to default case + default: + Request->PostStage = (UINT8) WR_STATE_POST; + break; + } +} +/*---------------------------------------------------------------------------------------- + * E X P O R T E D F U N C T I O N S - (AGESA ONLY) + *---------------------------------------------------------------------------------------- + */ + + + +/*---------------------------------------------------------------------------------------*/ +/** + * Is this boot a warm reset? + * + * This function reads the CPU register warm reset bit that is preserved after a warm reset. + * Which in fact gets set before issuing warm reset. We just use the BSP's register always. + * + * @param[in] StdHeader Config handle for library and services + * + * @retval TRUE Warm Reset + * @retval FALSE Not Warm Reset + * + */ +BOOLEAN +IsWarmReset ( + IN AMD_CONFIG_PARAMS *StdHeader + ) +{ + UINT8 PostStage; + WARM_RESET_REQUEST Request; + BOOLEAN WarmReset; + CPU_SPECIFIC_SERVICES *FamilySpecificServices; + + FamilySpecificServices = NULL; + + switch (StdHeader->Func) { + case AMD_INIT_RESET: + PostStage = WR_STATE_RESET; + break; + case AMD_INIT_EARLY: + PostStage = WR_STATE_EARLY; + break; + case AMD_INIT_POST: + default: + PostStage = WR_STATE_POST; + break; + } + + GetCpuServicesOfCurrentCore ((CONST CPU_SPECIFIC_SERVICES **)&FamilySpecificServices, StdHeader); + FamilySpecificServices->GetWarmResetFlag (FamilySpecificServices, StdHeader, &Request); + + if (Request.StateBits >= PostStage) { + WarmReset = TRUE; + } else { + WarmReset = FALSE; + } + + return WarmReset; +} + +/*---------------------------------------------------------------------------------------*/ +/** + * This function will set the CPU register warm reset bits at AmdInitEarly if it is + * currently in cold boot. To request for a warm reset, set the RequestBit to TRUE + * and the StateBits to (current poststage - 1) + * + * @param[in] Data The table data value (unused in this routine) + * @param[in] StdHeader Config handle for library and services + * + *--------------------------------------------------------------------------------------- + **/ +VOID +SetWarmResetAtEarly ( + IN UINT32 Data, + IN AMD_CONFIG_PARAMS *StdHeader + ) +{ + WARM_RESET_REQUEST Request; + + if (!IsWarmReset (StdHeader)) { + GetWarmResetFlag (StdHeader, &Request); + + Request.RequestBit = TRUE; + Request.StateBits = (Request.PostStage - 1); + + SetWarmResetFlag (StdHeader, &Request); + } +} + +/*---------------------------------------------------------------------------------------- + * L O C A L F U N C T I O N S + *---------------------------------------------------------------------------------------- + */ + |