[edk2-devel] [edk2-platforms] [PATCH v3 08/11] Silicon/NXP : Add MemoryInitPei Library

[Meenakshi Aggarwal]

Add MemoryInitPei Library for NXP platforms.
It retreieves DRAM information from TF-A.

Signed-off-by: Meenakshi Aggarwal <meenakshi.aggarwal at nxp.com>
---
 Silicon/NXP/Library/MemoryInitPei/MemoryInitPeiLib.inf |  48 +++++++
 Silicon/NXP/Library/MemoryInitPei/MemoryInitPeiLib.c   | 140 ++++++++++++++++++++
 2 files changed, 188 insertions(+)

diff --git a/Silicon/NXP/Library/MemoryInitPei/MemoryInitPeiLib.inf b/Silicon/NXP/Library/MemoryInitPei/MemoryInitPeiLib.inf
new file mode 100644
index 000000000000..a5bd39415def
--- /dev/null
+++ b/Silicon/NXP/Library/MemoryInitPei/MemoryInitPeiLib.inf
@@ -0,0 +1,48 @@
+#/** @file
+#
+#  Copyright (c) 2011-2014, ARM Ltd. All rights reserved.<BR>
+#  Copyright 2019-2020 NXP
+#
+#  SPDX-License-Identifier: BSD-2-Clause-Patent
+#
+#**/
+
+[Defines]
+  INF_VERSION                    = 0x0001001A
+  BASE_NAME                      = ArmMemoryInitPeiLib
+  FILE_GUID                      = 55ddb6e0-70b5-11e0-b33e-0002a5d5c51b
+  MODULE_TYPE                    = BASE
+  VERSION_STRING                 = 1.0
+  LIBRARY_CLASS                  = MemoryInitPeiLib|SEC PEIM DXE_DRIVER
+
+[Sources]
+  MemoryInitPeiLib.c
+
+
+[Packages]
+  ArmPkg/ArmPkg.dec
+  ArmPlatformPkg/ArmPlatformPkg.dec
+  EmbeddedPkg/EmbeddedPkg.dec
+  MdeModulePkg/MdeModulePkg.dec
+  MdePkg/MdePkg.dec
+  Silicon/NXP/NxpQoriqLs.dec
+
+[LibraryClasses]
+  ArmMmuLib
+  ArmPlatformLib
+  DebugLib
+  HobLib
+  PcdLib
+
+[Guids]
+  gEfiMemoryTypeInformationGuid
+
+[FeaturePcd]
+  gEmbeddedTokenSpaceGuid.PcdPrePiProduceMemoryTypeInformationHob
+
+[Pcd]
+  gArmTokenSpaceGuid.PcdSystemMemoryBase
+  gArmTokenSpaceGuid.PcdSystemMemorySize
+
+[Depex]
+  TRUE
diff --git a/Silicon/NXP/Library/MemoryInitPei/MemoryInitPeiLib.c b/Silicon/NXP/Library/MemoryInitPei/MemoryInitPeiLib.c
new file mode 100644
index 000000000000..00af4bde1a6a
--- /dev/null
+++ b/Silicon/NXP/Library/MemoryInitPei/MemoryInitPeiLib.c
@@ -0,0 +1,140 @@
+/** @file
+*
+*  Copyright (c) 2011-2015, ARM Limited. All rights reserved.
+*
+*  Copyright 2019-2020 NXP
+*
+*  SPDX-License-Identifier: BSD-2-Clause-Patent
+*
+**/
+
+#include <PiPei.h>
+
+#include <Library/ArmMmuLib.h>
+#include <Library/ArmPlatformLib.h>
+#include <Library/BaseMemoryLib.h>
+#include <Library/DebugLib.h>
+#include <Library/HobLib.h>
+#include <Library/MemoryAllocationLib.h>
+#include <Library/PcdLib.h>
+
+#include <DramInfo.h>
+
+VOID
+BuildMemoryTypeInformationHob (
+  VOID
+  );
+
+VOID
+InitMmu (
+  IN ARM_MEMORY_REGION_DESCRIPTOR  *MemoryTable
+  )
+{
+
+  VOID                          *TranslationTableBase;
+  UINTN                         TranslationTableSize;
+  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, &TranslationTableBase, &TranslationTableSize);
+  if (EFI_ERROR (Status)) {
+    DEBUG ((DEBUG_ERROR, "Error: Failed to enable MMU\n"));
+  }
+}
+
+/*++
+
+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;
+  EFI_RESOURCE_ATTRIBUTE_TYPE  ResourceAttributes;
+  EFI_PEI_HOB_POINTERS         NextHob;
+  BOOLEAN                      Found;
+  DRAM_INFO                    DramInfo;
+
+  // Get Virtual Memory Map from the Platform Library
+  ArmPlatformGetVirtualMemoryMap (&MemoryTable);
+
+  //
+  // Ensure MemoryTable[0].Length which is size of DRAM has been set
+  // by ArmPlatformGetVirtualMemoryMap ()
+  //
+  ASSERT (MemoryTable[0].Length != 0);
+
+  //
+  // Now, the permanent memory has been installed, we can call AllocatePages()
+  //
+  ResourceAttributes = (
+    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
+  );
+
+  if (GetDramBankInfo (&DramInfo)) {
+    DEBUG ((DEBUG_ERROR, "Failed to get DRAM information, exiting...\n"));
+    return EFI_UNSUPPORTED;
+  }
+
+  while (DramInfo.NumOfDrams--) {
+    //
+    // Check if the resource for the main system memory has been declared
+    //
+    Found = FALSE;
+    NextHob.Raw = GetHobList ();
+    while ((NextHob.Raw = GetNextHob (EFI_HOB_TYPE_RESOURCE_DESCRIPTOR, NextHob.Raw)) != NULL) {
+      if ((NextHob.ResourceDescriptor->ResourceType == EFI_RESOURCE_SYSTEM_MEMORY) &&
+          (DramInfo.DramRegion[DramInfo.NumOfDrams].BaseAddress >= NextHob.ResourceDescriptor->PhysicalStart) &&
+          (NextHob.ResourceDescriptor->PhysicalStart + NextHob.ResourceDescriptor->ResourceLength <=
+           DramInfo.DramRegion[DramInfo.NumOfDrams].BaseAddress + DramInfo.DramRegion[DramInfo.NumOfDrams].Size))
+      {
+        Found = TRUE;
+        break;
+      }
+      NextHob.Raw = GET_NEXT_HOB (NextHob);
+    }
+
+    if (!Found) {
+      // Reserved the memory space occupied by the firmware volume
+      BuildResourceDescriptorHob (
+        EFI_RESOURCE_SYSTEM_MEMORY,
+        ResourceAttributes,
+        DramInfo.DramRegion[DramInfo.NumOfDrams].BaseAddress,
+        DramInfo.DramRegion[DramInfo.NumOfDrams].Size
+      );
+    }
+  }
+
+  // Build Memory Allocation Hob
+  InitMmu (MemoryTable);
+
+  if (FeaturePcdGet (PcdPrePiProduceMemoryTypeInformationHob)) {
+    // Optional feature that helps prevent EFI memory map fragmentation.
+    BuildMemoryTypeInformationHob ();
+  }
+
+  return EFI_SUCCESS;
+}
-- 
1.9.1


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