projects / mirror_edk2.git / blame
| Commit | Line | Data |
|---|---|---|
| a1bcf5c3 AB |
1 | /** @file\r |
| 2 | *\r | |
| 3 | * Copyright (c) 2011-2014, ARM Limited. All rights reserved.\r | |
| 4 | * Copyright (c) 2014, Linaro Limited. All rights reserved.\r | |
| 5 | *\r | |
| 6 | * This program and the accompanying materials\r | |
| 7 | * are licensed and made available under the terms and conditions of the BSD License\r | |
| 8 | * which accompanies this distribution. The full text of the license may be found at\r | |
| 9 | * http://opensource.org/licenses/bsd-license.php\r | |
| 10 | *\r | |
| 11 | * THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r | |
| 12 | * WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r | |
| 13 | *\r | |
| 14 | **/\r | |
| 15 | \r | |
| 16 | #include <PiPei.h>\r | |
| 17 | \r | |
| 18 | #include <Library/ArmPlatformLib.h>\r | |
| 19 | #include <Library/DebugLib.h>\r | |
| 20 | #include <Library/HobLib.h>\r | |
| 21 | #include <Library/MemoryAllocationLib.h>\r | |
| 22 | #include <Library/PcdLib.h>\r | |
| 23 | \r | |
| 24 | VOID\r | |
| 25 | BuildMemoryTypeInformationHob (\r | |
| 26 | VOID\r | |
| 27 | );\r | |
| 28 | \r | |
| 29 | VOID\r | |
| 30 | InitMmu (\r | |
| 31 | VOID\r | |
| 32 | )\r | |
| 33 | {\r | |
| 34 | ARM_MEMORY_REGION_DESCRIPTOR *MemoryTable;\r | |
| 35 | VOID *TranslationTableBase;\r | |
| 36 | UINTN TranslationTableSize;\r | |
| 37 | RETURN_STATUS Status;\r | |
| 38 | \r | |
| 39 | // Get Virtual Memory Map from the Platform Library\r | |
| 40 | ArmPlatformGetVirtualMemoryMap (&MemoryTable);\r | |
| 41 | \r | |
| 42 | //Note: Because we called PeiServicesInstallPeiMemory() before to call InitMmu() the MMU Page Table resides in\r | |
| 43 | // DRAM (even at the top of DRAM as it is the first permanent memory allocation)\r | |
| 44 | Status = ArmConfigureMmu (MemoryTable, &TranslationTableBase, &TranslationTableSize);\r | |
| 45 | if (EFI_ERROR (Status)) {\r | |
| 46 | DEBUG ((EFI_D_ERROR, "Error: Failed to enable MMU\n"));\r | |
| 47 | }\r | |
| 48 | }\r | |
| 49 | \r | |
| 50 | EFI_STATUS\r | |
| 51 | EFIAPI\r | |
| 52 | MemoryPeim (\r | |
| 53 | IN EFI_PHYSICAL_ADDRESS UefiMemoryBase,\r | |
| 54 | IN UINT64 UefiMemorySize\r | |
| 55 | )\r | |
| 56 | {\r | |
| 57 | EFI_RESOURCE_ATTRIBUTE_TYPE ResourceAttributes;\r | |
| 58 | \r | |
| 59 | // Ensure PcdSystemMemorySize has been set\r | |
| 60 | ASSERT (PcdGet64 (PcdSystemMemorySize) != 0);\r | |
| 61 | \r | |
| 62 | //\r | |
| 63 | // Now, the permanent memory has been installed, we can call AllocatePages()\r | |
| 64 | //\r | |
| 65 | ResourceAttributes = (\r | |
| 66 | EFI_RESOURCE_ATTRIBUTE_PRESENT |\r | |
| 67 | EFI_RESOURCE_ATTRIBUTE_INITIALIZED |\r | |
| 68 | EFI_RESOURCE_ATTRIBUTE_UNCACHEABLE |\r | |
| 69 | EFI_RESOURCE_ATTRIBUTE_WRITE_COMBINEABLE |\r | |
| 70 | EFI_RESOURCE_ATTRIBUTE_WRITE_THROUGH_CACHEABLE |\r | |
| 71 | EFI_RESOURCE_ATTRIBUTE_WRITE_BACK_CACHEABLE |\r | |
| 72 | EFI_RESOURCE_ATTRIBUTE_TESTED\r | |
| 73 | );\r | |
| 74 | \r | |
| 75 | BuildResourceDescriptorHob (\r | |
| 76 | EFI_RESOURCE_SYSTEM_MEMORY,\r | |
| 77 | ResourceAttributes,\r | |
| 78 | PcdGet64 (PcdSystemMemoryBase),\r | |
| 79 | PcdGet64 (PcdSystemMemorySize)\r | |
| 80 | );\r | |
| 81 | \r | |
| 82 | // Build Memory Allocation Hob\r | |
| 83 | InitMmu ();\r | |
| 84 | \r | |
| 85 | if (FeaturePcdGet (PcdPrePiProduceMemoryTypeInformationHob)) {\r | |
| 86 | // Optional feature that helps prevent EFI memory map fragmentation.\r | |
| 87 | BuildMemoryTypeInformationHob ();\r | |
| 88 | }\r | |
| 89 | \r | |
| 90 | return EFI_SUCCESS;\r | |
| 91 | }\r |