1 /**@file 2 3 Copyright (c) 2006, Intel Corporation. All rights reserved.<BR> 4 Copyright (c) 2011 Hewlett Packard Corporation. All rights reserved.<BR> 5 Copyright (c) 2011-2013, ARM Limited. All rights reserved.<BR> 6 7 This program and the accompanying materials 8 are licensed and made available under the terms and conditions of the BSD License 9 which accompanies this distribution. The full text of the license may be found at 10 http://opensource.org/licenses/bsd-license.php 11 12 THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS, 13 WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED. 14 15 Module Name: 16 17 MemoryInit.c 18 19 Abstract: 20 21 PEIM to provide fake memory init 22 23 **/ 24 25 26 27 // 28 // The package level header files this module uses 29 // 30 #include <PiPei.h> 31 // 32 // The protocols, PPI and GUID defintions for this module 33 // 34 #include <Ppi/ArmMpCoreInfo.h> 35 36 // 37 // The Library classes this module consumes 38 // 39 #include <Library/DebugLib.h> 40 #include <Library/PeimEntryPoint.h> 41 #include <Library/PeiServicesLib.h> 42 #include <Library/PcdLib.h> 43 #include <Library/HobLib.h> 44 #include <Library/ArmLib.h> 45 46 /*++ 47 48 Routine Description: 49 50 Arguments: 51 52 FileHandle - Handle of the file being invoked. 53 PeiServices - Describes the list of possible PEI Services. 54 55 Returns: 56 57 Status - EFI_SUCCESS if the boot mode could be set 58 59 --*/ 60 EFI_STATUS 61 EFIAPI 62 InitializeCpuPeim ( 63 IN EFI_PEI_FILE_HANDLE FileHandle, 64 IN CONST EFI_PEI_SERVICES **PeiServices 65 ) 66 { 67 EFI_STATUS Status; 68 ARM_MP_CORE_INFO_PPI *ArmMpCoreInfoPpi; 69 UINTN ArmCoreCount; 70 ARM_CORE_INFO *ArmCoreInfoTable; 71 72 // Enable program flow prediction, if supported. 73 ArmEnableBranchPrediction (); 74 75 // Publish the CPU memory and io spaces sizes 76 BuildCpuHob (PcdGet8 (PcdPrePiCpuMemorySize), PcdGet8 (PcdPrePiCpuIoSize)); 77 78 // Only MP Core platform need to produce gArmMpCoreInfoPpiGuid 79 Status = PeiServicesLocatePpi (&gArmMpCoreInfoPpiGuid, 0, NULL, (VOID**)&ArmMpCoreInfoPpi); 80 if (!EFI_ERROR(Status)) { 81 // Build the MP Core Info Table 82 ArmCoreCount = 0; 83 Status = ArmMpCoreInfoPpi->GetMpCoreInfo (&ArmCoreCount, &ArmCoreInfoTable); 84 if (!EFI_ERROR(Status) && (ArmCoreCount > 0)) { 85 // Build MPCore Info HOB 86 BuildGuidDataHob (&gArmMpCoreInfoGuid, ArmCoreInfoTable, sizeof (ARM_CORE_INFO) * ArmCoreCount); 87 } 88 } 89 90 return EFI_SUCCESS; 91 } 92
