1 files changed, 97 insertions, 0 deletions
diff --git a/Silicon/Hisilicon/Library/ArmPlatformLibHisilicon/ArmPlatformLibMem.c b/Silicon/Hisilicon/Library/ArmPlatformLibHisilicon/ArmPlatformLibMem.c
new file mode 100644
index 0000000000..b7bc75dc74
--- /dev/null
+++ b/Silicon/Hisilicon/Library/ArmPlatformLibHisilicon/ArmPlatformLibMem.c
@@ -0,0 +1,97 @@
+/** @file
+*
+*  Copyright (c) 2011-2014, ARM Limited. All rights reserved.
+*  Copyright (c) 2015, Hisilicon Limited. All rights reserved.
+*  Copyright (c) 2015, Linaro 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.
+*
+*  Based on the files under ArmPlatformPkg/ArmVExpressPkg/Library/ArmVExpressLibRTSM/
+*
+**/
+
+#include <Library/ArmPlatformLib.h>
+#include <Library/DebugLib.h>
+#include <Library/HobLib.h>
+#include <Library/PcdLib.h>
+#include <Library/IoLib.h>
+#include <Library/MemoryAllocationLib.h>
+
+#include <Library/OemSetVirtualMapDesc.h>
+
+#define MAX_VIRTUAL_MEMORY_MAP_DESCRIPTORS          32
+
+// DDR attributes
+#define DDR_ATTRIBUTES_CACHED           ARM_MEMORY_REGION_ATTRIBUTE_WRITE_BACK
+#define DDR_ATTRIBUTES_UNCACHED         ARM_MEMORY_REGION_ATTRIBUTE_UNCACHED_UNBUFFERED
+
+/**
+  Return the Virtual Memory Map of your platform
+
+  This Virtual Memory Map is used by MemoryInitPei Module to initialize the MMU on your platform.
+
+  @param[out]   VirtualMemoryMap    Array of ARM_MEMORY_REGION_DESCRIPTOR describing a Physical-to-
+                                    Virtual Memory mapping. This array must be ended by a zero-filled
+                                    entry
+
+**/
+VOID
+ArmPlatformGetVirtualMemoryMap (
+  IN ARM_MEMORY_REGION_DESCRIPTOR** VirtualMemoryMap
+  )
+{
+  ARM_MEMORY_REGION_ATTRIBUTES  CacheAttributes;
+  UINTN                         Index;
+  ARM_MEMORY_REGION_DESCRIPTOR  *VirtualMemoryTable;
+  EFI_PEI_HOB_POINTERS          NextHob;
+
+  ASSERT (VirtualMemoryMap != NULL);
+
+  VirtualMemoryTable = (ARM_MEMORY_REGION_DESCRIPTOR*)AllocatePages(EFI_SIZE_TO_PAGES (sizeof(ARM_MEMORY_REGION_DESCRIPTOR) * MAX_VIRTUAL_MEMORY_MAP_DESCRIPTORS));
+  if (VirtualMemoryTable == NULL) {
+      return;
+  }
+
+  if (FeaturePcdGet(PcdCacheEnable) == TRUE) {
+      CacheAttributes = DDR_ATTRIBUTES_CACHED;
+  } else {
+      CacheAttributes = DDR_ATTRIBUTES_UNCACHED;
+  }
+
+  Index = OemSetVirtualMapDesc(VirtualMemoryTable, CacheAttributes);
+
+  // Search for System Memory Hob that contains the EFI resource system memory
+  NextHob.Raw = GetHobList ();
+  while ((NextHob.Raw = GetNextHob (EFI_HOB_TYPE_RESOURCE_DESCRIPTOR, NextHob.Raw)) != NULL)
+  {
+    if (NextHob.ResourceDescriptor->ResourceType == EFI_RESOURCE_SYSTEM_MEMORY)
+    {
+        if (NextHob.ResourceDescriptor->PhysicalStart > BASE_4GB)
+        {
+            VirtualMemoryTable[++Index].PhysicalBase = NextHob.ResourceDescriptor->PhysicalStart;
+            VirtualMemoryTable[Index].VirtualBase  = NextHob.ResourceDescriptor->PhysicalStart;
+            VirtualMemoryTable[Index].Length       =NextHob.ResourceDescriptor->ResourceLength;
+            VirtualMemoryTable[Index].Attributes   =  CacheAttributes;
+        }
+    }
+
+    NextHob.Raw = GET_NEXT_HOB (NextHob);
+  }
+
+  // End of Table
+  VirtualMemoryTable[++Index].PhysicalBase = 0;
+  VirtualMemoryTable[Index].VirtualBase  = 0;
+  VirtualMemoryTable[Index].Length       = 0;
+  VirtualMemoryTable[Index].Attributes   = (ARM_MEMORY_REGION_ATTRIBUTES)0;
+
+  ASSERT((Index + 1) <= MAX_VIRTUAL_MEMORY_MAP_DESCRIPTORS);
+  DEBUG((EFI_D_INFO, "[%a]:[%dL] discriptor count=%d\n", __FUNCTION__, __LINE__, Index+1));
+
+  *VirtualMemoryMap = VirtualMemoryTable;
+}