Vlv2TbltDevicePkg: Replace BSD License with BSD+Patent License

[mirror_edk2.git] / Vlv2TbltDevicePkg / SaveMemoryConfig / SaveMemoryConfig.c

/** \r
  Copyright (c) 2009 - 2013, Intel Corporation. All rights reserved.<BR>\r
  SPDX-License-Identifier: BSD-2-Clause-Patent\r
\r
\r
Module Name:\r
\r
  SaveMemoryConfig.c\r
\r
Abstract:\r
  This is the driver that locates the MemoryConfigurationData HOB, if it\r
  exists, and saves the data to nvRAM.\r
\r
 \r
\r
--*/\r
\r
#include "SaveMemoryConfig.h"\r
\r
CHAR16    EfiMemoryConfigVariable[] = L"MemoryConfig";\r
\r
\r
EFI_STATUS\r
EFIAPI\r
SaveMemoryConfigEntryPoint (\r
  IN EFI_HANDLE         ImageHandle,\r
  IN EFI_SYSTEM_TABLE   *SystemTable\r
  )\r
/*++\r
\r
  Routine Description:\r
    This is the standard EFI driver point that detects whether there is a\r
    MemoryConfigurationData HOB and, if so, saves its data to nvRAM.\r
\r
  Arguments:\r
    ImageHandle   - Handle for the image of this driver\r
    SystemTable   - Pointer to the EFI System Table\r
\r
  Returns:\r
    EFI_SUCCESS   - if the data is successfully saved or there was no data\r
    EFI_NOT_FOUND - if the HOB list could not be located.\r
    EFI_UNLOAD_IMAGE - It is not success\r
\r
--*/\r
{\r
  EFI_STATUS                      Status=EFI_SUCCESS;\r
  VOID                            *MemHobData;\r
  VOID                            *VariableData;\r
  UINTN                           BufferSize;\r
  BOOLEAN                         MfgMode;\r
  EFI_PLATFORM_SETUP_ID           *BootModeBuffer;\r
  EFI_PLATFORM_INFO_HOB           *PlatformInfoHobPtr;\r
  MEM_INFO_PROTOCOL               *MemInfoProtocol;\r
  EFI_HANDLE                      Handle;\r
  UINT8							              Channel, Slot;\r
  VOID                            *GuidHob;\r
\r
  VariableData   = NULL;\r
  MfgMode        = FALSE;\r
  Handle         = NULL;\r
  BootModeBuffer = NULL;\r
  MemHobData     = NULL;\r
  PlatformInfoHobPtr = NULL;\r
  BufferSize     = 0;\r
\r
  //\r
  // Get Platform Info HOB\r
  //\r
  GuidHob = GetFirstGuidHob (&gEfiPlatformInfoGuid);\r
  if (GuidHob == NULL) {\r
    Status = EFI_NOT_FOUND;\r
  }\r
  ASSERT_EFI_ERROR (Status);\r
\r
  PlatformInfoHobPtr = GET_GUID_HOB_DATA (GuidHob);\r
\r
  //\r
  // Get the BootMode guid hob\r
  //\r
  GuidHob = GetFirstGuidHob (&gEfiPlatformBootModeGuid);\r
  if (GuidHob == NULL) {\r
    Status = EFI_NOT_FOUND;\r
  }\r
  ASSERT_EFI_ERROR (Status);\r
\r
  BootModeBuffer = GET_GUID_HOB_DATA (GuidHob);\r
\r
\r
  //\r
  // Check whether in Manufacturing Mode\r
  //\r
  if (BootModeBuffer) {\r
    if ( !CompareMem (   //EfiCompareMem\r
            &BootModeBuffer->SetupName,\r
            MANUFACTURE_SETUP_NAME,\r
            StrSize (MANUFACTURE_SETUP_NAME)  //EfiStrSize\r
            ) ) {\r
      MfgMode = TRUE;\r
    }\r
  }\r
\r
  if (MfgMode) {\r
    //\r
    // Don't save Memory Configuration in Manufacturing Mode. Clear memory configuration.\r
    //\r
    Status = gRT->SetVariable (\r
              EfiMemoryConfigVariable,\r
              &gEfiVlv2VariableGuid,\r
              EFI_VARIABLE_NON_VOLATILE | EFI_VARIABLE_BOOTSERVICE_ACCESS,\r
              0,\r
              NULL\r
              );      \r
  } else {\r
\r
    MemInfoProtocol = (MEM_INFO_PROTOCOL*)AllocateZeroPool(sizeof(MEM_INFO_PROTOCOL));\r
    if (PlatformInfoHobPtr != NULL) {\r
      MemInfoProtocol->MemInfoData.memSize  = 0;\r
      for (Channel = 0; Channel < CH_NUM; Channel ++){\r
        for (Slot = 0; Slot < DIMM_NUM; Slot ++){               \r
          MemInfoProtocol->MemInfoData.dimmSize[Slot + (Channel * DIMM_NUM)] = PlatformInfoHobPtr->MemData.DimmSize[Slot + (Channel * DIMM_NUM)];\r
        }\r
      }\r
  	  MemInfoProtocol->MemInfoData.memSize       = PlatformInfoHobPtr->MemData.MemSize;        \r
  	  MemInfoProtocol->MemInfoData.EccSupport    = PlatformInfoHobPtr->MemData.EccSupport;\r
      MemInfoProtocol->MemInfoData.ddrFreq       = PlatformInfoHobPtr->MemData.DdrFreq;\r
      MemInfoProtocol->MemInfoData.ddrType       = PlatformInfoHobPtr->MemData.DdrType;\r
      if (MemInfoProtocol->MemInfoData.memSize == 0){\r
        //\r
        // We hardcode if MRC didn't fill these info in\r
        //\r
        MemInfoProtocol->MemInfoData.memSize     = 0x800; //per 1MB \r
        MemInfoProtocol->MemInfoData.dimmSize[0] = 0x800;\r
        MemInfoProtocol->MemInfoData.dimmSize[1] = 0;    \r
        MemInfoProtocol->MemInfoData.EccSupport  = FALSE;\r
        MemInfoProtocol->MemInfoData.ddrType     = 5; //DDRType_LPDDR3\r
      }\r
\r
      Status = gBS->InstallMultipleProtocolInterfaces (\r
             &Handle,\r
             &gMemInfoProtocolGuid,\r
             MemInfoProtocol,\r
             NULL\r
             );\r
    }\r
\r
    Status = EFI_SUCCESS;\r
    if (BOOT_WITH_MINIMAL_CONFIGURATION != GetBootModeHob()){\r
      //\r
      // Get the Memory Config guid hob\r
      //\r
      GuidHob = GetFirstGuidHob (&gEfiMemoryConfigDataGuid);\r
      if (GuidHob == NULL) {\r
        Status = EFI_NOT_FOUND;\r
      }\r
      ASSERT_EFI_ERROR (Status);\r
      \r
      MemHobData = GET_GUID_HOB_DATA (GuidHob);\r
      BufferSize = GET_GUID_HOB_DATA_SIZE (GuidHob);\r
\r
      Status = gRT->GetVariable (\r
                  EfiMemoryConfigVariable,\r
                  &gEfiVlv2VariableGuid,\r
                  NULL,\r
                  &BufferSize,\r
                  VariableData\r
                  );\r
      if (EFI_ERROR(Status) && (MemHobData != NULL)) {    \r
        Status = gRT->SetVariable (\r
                      EfiMemoryConfigVariable,\r
                      &gEfiVlv2VariableGuid,\r
                      (EFI_VARIABLE_NON_VOLATILE | EFI_VARIABLE_BOOTSERVICE_ACCESS),\r
                      BufferSize,\r
                      MemHobData\r
                      );\r
      } \r
    }\r
\r
  } // if-else MfgMode\r
\r
  return EFI_SUCCESS;\r
}\r