diff options
Diffstat (limited to 'ArmPlatformPkg/MemoryInitPei/MemoryInit.c')
| -rw-r--r-- | ArmPlatformPkg/MemoryInitPei/MemoryInit.c | 161 |
1 files changed, 161 insertions, 0 deletions
diff --git a/ArmPlatformPkg/MemoryInitPei/MemoryInit.c b/ArmPlatformPkg/MemoryInitPei/MemoryInit.c new file mode 100644 index 0000000000..6f066c41f9 --- /dev/null +++ b/ArmPlatformPkg/MemoryInitPei/MemoryInit.c @@ -0,0 +1,161 @@ +/** @file
+*
+* Copyright (c) 2011, ARM Limited. All rights reserved.
+*
+* This program and the accompanying materials
+* are licensed and made available under the terms and conditions of the BSD License
+* which accompanies this distribution. The full text of the license may be found at
+* http://opensource.org/licenses/bsd-license.php
+*
+* THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
+* WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
+*
+**/
+
+//
+// The package level header files this module uses
+//
+#include <PiPei.h>
+//
+// The protocols, PPI and GUID defintions for this module
+//
+#include <Ppi/MasterBootMode.h>
+#include <Ppi/BootInRecoveryMode.h>
+#include <Guid/MemoryTypeInformation.h>
+//
+// The Library classes this module consumes
+//
+#include <Library/DebugLib.h>
+#include <Library/PeimEntryPoint.h>
+#include <Library/PcdLib.h>
+#include <Library/HobLib.h>
+#include <Library/PeiServicesLib.h>
+#include <Library/ArmLib.h>
+#include <Library/IoLib.h>
+#include <Library/ArmPlatformLib.h>
+
+//
+// Module globals
+//
+
+VOID
+InitMmu (
+ VOID
+ )
+{
+ ARM_MEMORY_REGION_DESCRIPTOR *MemoryTable;
+ VOID *TranslationTableBase;
+ UINTN TranslationTableSize;
+
+ // Get Virtual Memory Map from the Platform Library
+ ArmPlatformGetVirtualMemoryMap(&MemoryTable);
+
+ //Note: Because we called PeiServicesInstallPeiMemory() before to call InitMmu() the MMU Page Table resides in
+ // DRAM (even at the top of DRAM as it is the first permanent memory allocation)
+ ArmConfigureMmu (MemoryTable, &TranslationTableBase, &TranslationTableSize);
+}
+
+// May want to put this into a library so you only need the PCD setings if you are using the feature?
+VOID
+BuildMemoryTypeInformationHob (
+ VOID
+ )
+{
+ EFI_MEMORY_TYPE_INFORMATION Info[10];
+
+ Info[0].Type = EfiACPIReclaimMemory;
+ Info[0].NumberOfPages = PcdGet32 (PcdMemoryTypeEfiACPIReclaimMemory);
+ Info[1].Type = EfiACPIMemoryNVS;
+ Info[1].NumberOfPages = PcdGet32 (PcdMemoryTypeEfiACPIMemoryNVS);
+ Info[2].Type = EfiReservedMemoryType;
+ Info[2].NumberOfPages = PcdGet32 (PcdMemoryTypeEfiReservedMemoryType);
+ Info[3].Type = EfiRuntimeServicesData;
+ Info[3].NumberOfPages = PcdGet32 (PcdMemoryTypeEfiRuntimeServicesData);
+ Info[4].Type = EfiRuntimeServicesCode;
+ Info[4].NumberOfPages = PcdGet32 (PcdMemoryTypeEfiRuntimeServicesCode);
+ Info[5].Type = EfiBootServicesCode;
+ Info[5].NumberOfPages = PcdGet32 (PcdMemoryTypeEfiBootServicesCode);
+ Info[6].Type = EfiBootServicesData;
+ Info[6].NumberOfPages = PcdGet32 (PcdMemoryTypeEfiBootServicesData);
+ Info[7].Type = EfiLoaderCode;
+ Info[7].NumberOfPages = PcdGet32 (PcdMemoryTypeEfiLoaderCode);
+ Info[8].Type = EfiLoaderData;
+ Info[8].NumberOfPages = PcdGet32 (PcdMemoryTypeEfiLoaderData);
+
+ // Terminator for the list
+ Info[9].Type = EfiMaxMemoryType;
+ Info[9].NumberOfPages = 0;
+
+
+ BuildGuidDataHob (&gEfiMemoryTypeInformationGuid, &Info, sizeof (Info));
+}
+
+EFI_STATUS
+EFIAPI
+InitializeMemory (
+ IN EFI_PEI_FILE_HANDLE FileHandle,
+ IN CONST EFI_PEI_SERVICES **PeiServices
+ )
+/*++
+
+Routine Description:
+
+
+
+Arguments:
+
+ FileHandle - Handle of the file being invoked.
+ PeiServices - Describes the list of possible PEI Services.
+
+Returns:
+
+ Status - EFI_SUCCESS if the boot mode could be set
+
+--*/
+{
+ EFI_STATUS Status;
+ ARM_SYSTEM_MEMORY_REGION_DESCRIPTOR* EfiMemoryMap;
+ UINTN PeiMemoryBase;
+ UINTN PeiMemorySize;
+ UINTN Index;
+
+ DEBUG ((EFI_D_ERROR, "Memory Init PEIM Loaded\n"));
+
+ // If it is not a standalone version, then we need to initialize the System Memory
+ // In case of a standalone version, the DRAM is already initialized
+ if (FeaturePcdGet(PcdStandalone)) {
+ // Initialize the System Memory controller (DRAM)
+ ArmPlatformInitializeSystemMemory();
+ }
+
+ // Install the Memory to PEI
+ ArmPlatformGetPeiMemory (&PeiMemoryBase,&PeiMemorySize);
+ Status = PeiServicesInstallPeiMemory (PeiMemoryBase,PeiMemorySize);
+ ASSERT_EFI_ERROR (Status);
+
+ //
+ // Now, the permanent memory has been installed, we can call AllocatePages()
+ //
+
+ ArmPlatformGetEfiMemoryMap (&EfiMemoryMap);
+
+ // Install the EFI Memory Map
+ for (Index = 0; EfiMemoryMap[Index].ResourceAttribute != 0; Index++) {
+ BuildResourceDescriptorHob (
+ EFI_RESOURCE_SYSTEM_MEMORY,
+ EfiMemoryMap[Index].ResourceAttribute,
+ EfiMemoryMap[Index].PhysicalStart,
+ EfiMemoryMap[Index].NumberOfBytes
+ );
+ }
+
+ // Build Memory Allocation Hob
+ InitMmu ();
+
+ if (FeaturePcdGet (PcdPrePiProduceMemoryTypeInformationHob)) {
+ // Optional feature that helps prevent EFI memory map fragmentation.
+ BuildMemoryTypeInformationHob ();
+ }
+
+ return Status;
+}
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