/** @file
|
*
|
* Copyright (c) 2017-2018, Andrey Warkentin <andrey.warkentin@gmail.com>
|
* Copyright (c) 2011-2015, ARM Limited. All rights reserved.
|
*
|
* SPDX-License-Identifier: BSD-2-Clause-Patent
|
*
|
**/
|
|
#include <PiPei.h>
|
|
#include <Library/ArmMmuLib.h>
|
#include <Library/ArmPlatformLib.h>
|
#include <Library/DebugLib.h>
|
#include <Library/HobLib.h>
|
#include <Library/MemoryAllocationLib.h>
|
#include <Library/PcdLib.h>
|
#include <Library/RPiMem.h>
|
|
VOID
|
BuildMemoryTypeInformationHob (
|
VOID
|
);
|
|
STATIC
|
VOID
|
InitMmu (
|
IN ARM_MEMORY_REGION_DESCRIPTOR *MemoryTable
|
)
|
{
|
RETURN_STATUS Status;
|
|
//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)
|
Status = ArmConfigureMmu (MemoryTable, NULL, NULL);
|
if (EFI_ERROR (Status)) {
|
DEBUG ((DEBUG_ERROR, "Error: Failed to enable MMU\n"));
|
}
|
}
|
|
STATIC
|
VOID
|
AddBasicMemoryRegion (
|
IN ARM_MEMORY_REGION_DESCRIPTOR *Desc
|
)
|
{
|
BuildResourceDescriptorHob (
|
EFI_RESOURCE_SYSTEM_MEMORY,
|
EFI_RESOURCE_ATTRIBUTE_PRESENT |
|
EFI_RESOURCE_ATTRIBUTE_INITIALIZED |
|
EFI_RESOURCE_ATTRIBUTE_WRITE_COMBINEABLE |
|
EFI_RESOURCE_ATTRIBUTE_WRITE_THROUGH_CACHEABLE |
|
EFI_RESOURCE_ATTRIBUTE_WRITE_BACK_CACHEABLE |
|
EFI_RESOURCE_ATTRIBUTE_TESTED,
|
Desc->PhysicalBase,
|
Desc->Length
|
);
|
}
|
|
STATIC
|
VOID
|
AddRuntimeServicesRegion (
|
IN ARM_MEMORY_REGION_DESCRIPTOR *Desc
|
)
|
{
|
AddBasicMemoryRegion (Desc);
|
|
BuildMemoryAllocationHob (
|
Desc->PhysicalBase,
|
Desc->Length,
|
EfiRuntimeServicesData
|
);
|
}
|
|
STATIC
|
VOID
|
AddUnmappedMemoryRegion (
|
IN ARM_MEMORY_REGION_DESCRIPTOR *Desc
|
)
|
{
|
// Do nothing
|
}
|
|
STATIC
|
VOID
|
AddReservedMemoryRegion (
|
IN ARM_MEMORY_REGION_DESCRIPTOR *Desc
|
)
|
{
|
AddBasicMemoryRegion (Desc);
|
|
BuildMemoryAllocationHob (
|
Desc->PhysicalBase,
|
Desc->Length,
|
EfiReservedMemoryType
|
);
|
}
|
|
void (*AddRegion[]) (IN ARM_MEMORY_REGION_DESCRIPTOR *Desc) = {
|
AddUnmappedMemoryRegion,
|
AddBasicMemoryRegion,
|
AddRuntimeServicesRegion,
|
AddReservedMemoryRegion,
|
};
|
|
/*++
|
|
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
|
EFIAPI
|
MemoryPeim (
|
IN EFI_PHYSICAL_ADDRESS UefiMemoryBase,
|
IN UINT64 UefiMemorySize
|
)
|
{
|
ARM_MEMORY_REGION_DESCRIPTOR *MemoryTable;
|
RPI_MEMORY_REGION_INFO *MemoryInfo;
|
UINTN Index;
|
|
// Get Virtual Memory Map from the Platform Library
|
ArmPlatformGetVirtualMemoryMap (&MemoryTable);
|
|
// Get additional info not provided by MemoryTable
|
RpiPlatformGetVirtualMemoryInfo (&MemoryInfo);
|
|
// Register each memory region
|
for (Index = 0; MemoryTable[Index].Length != 0; Index++) {
|
ASSERT (MemoryInfo[Index].Type < ARRAY_SIZE (AddRegion));
|
DEBUG ((DEBUG_INFO, "%s:\n"
|
"\tPhysicalBase: 0x%lX\n"
|
"\tVirtualBase: 0x%lX\n"
|
"\tLength: 0x%lX\n",
|
MemoryInfo[Index].Name,
|
MemoryTable[Index].PhysicalBase,
|
MemoryTable[Index].VirtualBase,
|
MemoryTable[Index].Length));
|
AddRegion[MemoryInfo[Index].Type] (&MemoryTable[Index]);
|
}
|
|
// Build Memory Allocation Hob
|
InitMmu (MemoryTable);
|
|
if (FeaturePcdGet (PcdPrePiProduceMemoryTypeInformationHob)) {
|
// Optional feature that helps prevent EFI memory map fragmentation.
|
BuildMemoryTypeInformationHob ();
|
}
|
|
return EFI_SUCCESS;
|
}
|
