1 /** @file 2 * 3 * Copyright (c) 2011-2013, ARM Limited. All rights reserved.<BR> 4 * Copyright (c) 2014 - 2016, AMD Inc. All rights reserved.<BR> 5 * 6 * This program and the accompanying materials 7 * are licensed and made available under the terms and conditions of the BSD License 8 * which accompanies this distribution. The full text of the license may be found at 9 * http://opensource.org/licenses/bsd-license.php 10 * 11 * THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED. 13 * 14 **/ 15 /** 16 Derived from: 17 ArmPlatformPkg/ArmVExpressPkg/Library/ArmVExpressLibRTSM/RTSM.c 18 19 **/ 20 21 // 22 // The package level header files this module uses 23 // 24 #include <PiPei.h> 25 26 // 27 // The protocols, PPI and GUID defintions for this module 28 // 29 #include <Ppi/ArmMpCoreInfo.h> 30 #include <Guid/ArmMpCoreInfo.h> 31 32 // 33 // The Library classes this module consumes 34 // 35 #include <Library/PeimEntryPoint.h> 36 #include <Library/PeiServicesLib.h> 37 #include <Library/DebugLib.h> 38 #include <Library/PcdLib.h> 39 #include <Library/HobLib.h> 40 #include <Library/ArmLib.h> 41 #include <Library/ArmPlatformLib.h> 42 #include <Library/BaseMemoryLib.h> 43 44 45 extern EFI_GUID gAmdStyxMpCoreInfoGuid; 46 47 48 UINTN 49 ArmGetCpuCountPerCluster ( 50 VOID 51 ); 52 53 54 /** 55 Return the current Boot Mode 56 57 This function returns the boot reason on the platform 58 59 @return Return the current Boot Mode of the platform 60 61 **/ 62 EFI_BOOT_MODE 63 ArmPlatformGetBootMode ( 64 VOID 65 ) 66 { 67 return BOOT_WITH_FULL_CONFIGURATION; 68 } 69 70 71 /** 72 Initialize controllers that must setup in the normal world 73 74 This function is called by the ArmPlatformPkg/Pei or ArmPlatformPkg/Pei/PlatformPeim 75 in the PEI phase. 76 77 **/ 78 RETURN_STATUS 79 ArmPlatformInitialize ( 80 IN UINTN MpId 81 ) 82 { 83 if (!ArmPlatformIsPrimaryCore (MpId)) { 84 return RETURN_SUCCESS; 85 } 86 87 // XXX Place holder XXX ... 88 89 return RETURN_SUCCESS; 90 } 91 92 93 /** 94 Initialize the system (or sometimes called permanent) memory 95 96 This memory is generally represented by the DRAM. 97 98 **/ 99 VOID 100 ArmPlatformInitializeSystemMemory ( 101 VOID 102 ) 103 { 104 // Nothing to do here 105 } 106 107 108 // 109 // Return list of cores in the system 110 // 111 EFI_STATUS 112 PrePeiCoreGetMpCoreInfo ( 113 OUT UINTN *ArmCoreCount, 114 OUT ARM_CORE_INFO **ArmCoreInfoTable 115 ) 116 { 117 EFI_PEI_HOB_POINTERS Hob; 118 119 if (ArmIsMpCore()) { 120 // Iterate through the HOBs and find if there is ARM PROCESSOR ENTRY HOB 121 for (Hob.Raw = GetHobList (); !END_OF_HOB_LIST(Hob); Hob.Raw = GET_NEXT_HOB(Hob)) { 122 // Check for Correct HOB type 123 if ((GET_HOB_TYPE (Hob)) == EFI_HOB_TYPE_GUID_EXTENSION) { 124 // Check for correct GUID type 125 if (CompareGuid(&(Hob.Guid->Name), &gAmdStyxMpCoreInfoGuid)) { 126 *ArmCoreInfoTable = (ARM_CORE_INFO *) GET_GUID_HOB_DATA(Hob); 127 *ArmCoreCount = GET_GUID_HOB_DATA_SIZE(Hob)/sizeof(ARM_CORE_INFO); 128 return EFI_SUCCESS; 129 } 130 } 131 } 132 } 133 134 return EFI_UNSUPPORTED; 135 } 136 137 138 ARM_MP_CORE_INFO_PPI mMpCoreInfoPpi = { PrePeiCoreGetMpCoreInfo }; 139 140 EFI_PEI_PPI_DESCRIPTOR gPlatformPpiTable[] = { 141 { 142 EFI_PEI_PPI_DESCRIPTOR_PPI, 143 &gArmMpCoreInfoPpiGuid, 144 &mMpCoreInfoPpi 145 } 146 }; 147 148 149 VOID 150 ArmPlatformGetPlatformPpiList ( 151 OUT UINTN *PpiListSize, 152 OUT EFI_PEI_PPI_DESCRIPTOR **PpiList 153 ) 154 { 155 if (ArmIsMpCore()) { 156 *PpiListSize = sizeof(gPlatformPpiTable); 157 *PpiList = gPlatformPpiTable; 158 } else { 159 *PpiListSize = 0; 160 *PpiList = NULL; 161 } 162 } 163 164 165
