ArmPkg: Move ARM Platform drivers from ArmPkg/Drivers/ to ArmPlatformPkg/Drivers/

[mirror_edk2.git] / ArmPlatformPkg / MemoryInitPei / MemoryInitPeiLib.c

/** @file\r
*\r
*  Copyright (c) 2011, ARM Limited. All rights reserved.\r
*\r
*  This program and the accompanying materials\r
*  are licensed and made available under the terms and conditions of the BSD License\r
*  which accompanies this distribution.  The full text of the license may be found at\r
*  http://opensource.org/licenses/bsd-license.php\r
*\r
*  THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r
*  WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r
*\r
**/\r
\r
#include <PiPei.h>\r
\r
#include <Library/ArmPlatformLib.h>\r
#include <Library/DebugLib.h>\r
#include <Library/HobLib.h>\r
#include <Library/MemoryAllocationLib.h>\r
#include <Library/PcdLib.h>\r
\r
#include <Chipset/ArmV7.h>\r
\r
VOID\r
BuildMemoryTypeInformationHob (\r
  VOID\r
  );\r
\r
VOID\r
InitMmu (\r
  VOID\r
  )\r
{\r
  ARM_MEMORY_REGION_DESCRIPTOR  *MemoryTable;\r
  VOID                          *TranslationTableBase;\r
  UINTN                         TranslationTableSize;\r
\r
  // Get Virtual Memory Map from the Platform Library\r
  ArmPlatformGetVirtualMemoryMap(&MemoryTable);\r
\r
  //Note: Because we called PeiServicesInstallPeiMemory() before to call InitMmu() the MMU Page Table resides in\r
  //      DRAM (even at the top of DRAM as it is the first permanent memory allocation)\r
  ArmConfigureMmu (MemoryTable, &TranslationTableBase, &TranslationTableSize);\r
}\r
\r
/*++\r
\r
Routine Description:\r
\r
\r
\r
Arguments:\r
\r
  FileHandle  - Handle of the file being invoked.\r
  PeiServices - Describes the list of possible PEI Services.\r
\r
Returns:\r
\r
  Status -  EFI_SUCCESS if the boot mode could be set\r
\r
--*/\r
EFI_STATUS\r
EFIAPI\r
MemoryPeim (\r
  IN EFI_PHYSICAL_ADDRESS               UefiMemoryBase,\r
  IN UINT64                             UefiMemorySize\r
  )\r
{\r
  EFI_STATUS                            Status;\r
  EFI_RESOURCE_ATTRIBUTE_TYPE           Attributes;\r
  ARM_SYSTEM_MEMORY_REGION_DESCRIPTOR*  EfiMemoryMap;\r
  UINTN                                 Index;\r
  EFI_PHYSICAL_ADDRESS                  SystemMemoryTop;\r
\r
  // Ensure PcdSystemMemorySize has been set\r
  ASSERT (PcdGet32 (PcdSystemMemorySize) != 0);\r
\r
  SystemMemoryTop = (EFI_PHYSICAL_ADDRESS)((UINT32)PcdGet32 (PcdSystemMemoryBase) + (UINT32)PcdGet32 (PcdSystemMemorySize));\r
\r
  //\r
  // Now, the permanent memory has been installed, we can call AllocatePages()\r
  //\r
  Attributes = (\r
      EFI_RESOURCE_ATTRIBUTE_PRESENT |\r
      EFI_RESOURCE_ATTRIBUTE_INITIALIZED |\r
      EFI_RESOURCE_ATTRIBUTE_UNCACHEABLE |\r
      EFI_RESOURCE_ATTRIBUTE_WRITE_COMBINEABLE |\r
      EFI_RESOURCE_ATTRIBUTE_WRITE_THROUGH_CACHEABLE |\r
      EFI_RESOURCE_ATTRIBUTE_WRITE_BACK_CACHEABLE |\r
      EFI_RESOURCE_ATTRIBUTE_TESTED\r
  );\r
\r
  // If it is not a standalone build we must reserved the space above the base address of the firmware volume\r
  if (!PcdGet32(PcdStandalone)) {\r
    // Check if firmware volume has not be copied at the top of DRAM then we must reserve the extra space\r
    // between the firmware and the top\r
    if (SystemMemoryTop != PcdGet32 (PcdNormalFdBaseAddress) + PcdGet32 (PcdNormalFdSize)) {\r
      BuildResourceDescriptorHob (\r
          EFI_RESOURCE_SYSTEM_MEMORY,\r
          Attributes & (~EFI_RESOURCE_ATTRIBUTE_TESTED),\r
          PcdGet32 (PcdNormalFdBaseAddress) + PcdGet32 (PcdNormalFdSize),\r
          SystemMemoryTop - (PcdGet32 (PcdNormalFdBaseAddress) + PcdGet32 (PcdNormalFdSize))\r
      );\r
    }\r
\r
    // Reserved the memory space occupied by the firmware volume\r
    BuildResourceDescriptorHob (\r
        EFI_RESOURCE_SYSTEM_MEMORY,\r
        Attributes & (~EFI_RESOURCE_ATTRIBUTE_PRESENT),\r
        (UINT32)PcdGet32 (PcdNormalFdBaseAddress),\r
        (UINT32)PcdGet32 (PcdNormalFdSize)\r
    );\r
  }\r
\r
  // Check there is no overlap between UEFI and Fix Address Regions\r
  ASSERT (PcdGet32 (PcdSystemMemoryBase) + PcdGet32 (PcdSystemMemoryFixRegionSize) <= UefiMemoryBase);\r
\r
  // Reserved the UEFI Memory Region\r
  BuildResourceDescriptorHob (\r
      EFI_RESOURCE_SYSTEM_MEMORY,\r
      Attributes,\r
      UefiMemoryBase,\r
      UefiMemorySize\r
  );\r
\r
  // Reserved the Fix Address Region\r
  BuildResourceDescriptorHob (\r
      EFI_RESOURCE_SYSTEM_MEMORY,\r
      Attributes,\r
      PcdGet32 (PcdSystemMemoryBase),\r
      PcdGet32 (PcdSystemMemoryFixRegionSize)\r
  );\r
\r
  // Reserved the memory between UEFI and Fix Address regions\r
  if (PcdGet32 (PcdSystemMemoryBase) + PcdGet32 (PcdSystemMemoryFixRegionSize) != UefiMemoryBase) {\r
    BuildResourceDescriptorHob (\r
        EFI_RESOURCE_SYSTEM_MEMORY,\r
        Attributes & (~EFI_RESOURCE_ATTRIBUTE_TESTED),\r
        PcdGet32 (PcdSystemMemoryBase) + PcdGet32 (PcdSystemMemoryFixRegionSize),\r
        UefiMemoryBase - (PcdGet32 (PcdSystemMemoryBase) + PcdGet32 (PcdSystemMemoryFixRegionSize))\r
    );\r
  }\r
\r
  // If a platform has system memory extensions, it can declare those in this function\r
  Status = ArmPlatformGetAdditionalSystemMemory (&EfiMemoryMap);\r
  if (!EFI_ERROR(Status)) {\r
    // Install the EFI Memory Map\r
    for (Index = 0; EfiMemoryMap[Index].ResourceAttribute != 0; Index++) {\r
      BuildResourceDescriptorHob (\r
          EFI_RESOURCE_SYSTEM_MEMORY,\r
          EfiMemoryMap[Index].ResourceAttribute,\r
          EfiMemoryMap[Index].PhysicalStart,\r
          EfiMemoryMap[Index].NumberOfBytes\r
      );\r
    }\r
    FreePool (EfiMemoryMap);\r
  }\r
\r
  // Build Memory Allocation Hob\r
  InitMmu ();\r
\r
  if (FeaturePcdGet (PcdPrePiProduceMemoryTypeInformationHob)) {\r
    // Optional feature that helps prevent EFI memory map fragmentation.\r
    BuildMemoryTypeInformationHob ();\r
  }\r
\r
  return EFI_SUCCESS;\r
}\r