+++ /dev/null
-/** @file\r
-*\r
-* Copyright (c) 2011-2015, 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 <Uefi.h>\r
-#include <Library/ArmPlatformGlobalVariableLib.h>\r
-#include <Library/BaseLib.h>\r
-#include <Library/BaseMemoryLib.h>\r
-#include <Library/PcdLib.h>\r
-#include <Library/DebugLib.h>\r
-\r
-extern UINT64 mSystemMemoryEnd;\r
-\r
-#define IS_XIP() (((UINT32)PcdGet64 (PcdFdBaseAddress) > (UINT32)(mSystemMemoryEnd)) || \\r
- ((PcdGet64 (PcdFdBaseAddress) + PcdGet32 (PcdFdSize)) < PcdGet64 (PcdSystemMemoryBase)))\r
-\r
-// Declared by ArmPlatformPkg/PrePi Module\r
-extern UINTN mGlobalVariableBase;\r
-\r
-VOID\r
-ArmPlatformGetGlobalVariable (\r
- IN UINTN VariableOffset,\r
- IN UINTN VariableSize,\r
- OUT VOID* Variable\r
- )\r
-{\r
- UINTN GlobalVariableBase;\r
-\r
- // Ensure the Global Variable Size have been initialized\r
- ASSERT (VariableOffset < PcdGet32 (PcdPeiGlobalVariableSize));\r
-\r
- if (IS_XIP()) {\r
- // In Case of XIP, we expect the Primary Stack at the top of the System Memory\r
- // The size must be 64bit aligned to allow 64bit variable to be aligned\r
- GlobalVariableBase = mSystemMemoryEnd + 1 - ALIGN_VALUE (PcdGet32 (PcdPeiGlobalVariableSize), 0x8);\r
- } else {\r
- GlobalVariableBase = mGlobalVariableBase;\r
- }\r
-\r
- if (VariableSize == 4) {\r
- *(UINT32*)Variable = ReadUnaligned32 ((CONST UINT32*)(GlobalVariableBase + VariableOffset));\r
- } else if (VariableSize == 8) {\r
- *(UINT64*)Variable = ReadUnaligned64 ((CONST UINT64*)(GlobalVariableBase + VariableOffset));\r
- } else {\r
- CopyMem (Variable, (VOID*)(GlobalVariableBase + VariableOffset), VariableSize);\r
- }\r
-}\r
-\r
-VOID\r
-ArmPlatformSetGlobalVariable (\r
- IN UINTN VariableOffset,\r
- IN UINTN VariableSize,\r
- OUT VOID* Variable\r
- )\r
-{\r
- UINTN GlobalVariableBase;\r
-\r
- // Ensure the Global Variable Size have been initialized\r
- ASSERT (VariableOffset < PcdGet32 (PcdPeiGlobalVariableSize));\r
-\r
- if (IS_XIP()) {\r
- // In Case of XIP, we expect the Primary Stack at the top of the System Memory\r
- // The size must be 64bit aligned to allow 64bit variable to be aligned\r
- GlobalVariableBase = mSystemMemoryEnd + 1 - ALIGN_VALUE (PcdGet32 (PcdPeiGlobalVariableSize), 0x8);\r
- } else {\r
- GlobalVariableBase = mGlobalVariableBase;\r
- }\r
-\r
- if (VariableSize == 4) {\r
- WriteUnaligned32 ((UINT32*)(GlobalVariableBase + VariableOffset), *(UINT32*)Variable);\r
- } else if (VariableSize == 8) {\r
- WriteUnaligned64 ((UINT64*)(GlobalVariableBase + VariableOffset), *(UINT64*)Variable);\r
- } else {\r
- CopyMem ((VOID*)(GlobalVariableBase + VariableOffset), Variable, VariableSize);\r
- }\r
-}\r
-\r
-VOID*\r
-ArmPlatformGetGlobalVariableAddress (\r
- IN UINTN VariableOffset\r
- )\r
-{\r
- UINTN GlobalVariableBase;\r
-\r
- // Ensure the Global Variable Size have been initialized\r
- ASSERT (VariableOffset < PcdGet32 (PcdPeiGlobalVariableSize));\r
-\r
- if (IS_XIP()) {\r
- // In Case of XIP, we expect the Primary Stack at the top of the System Memory\r
- // The size must be 64bit aligned to allow 64bit variable to be aligned\r
- GlobalVariableBase = mSystemMemoryEnd + 1 - ALIGN_VALUE (PcdGet32 (PcdPeiGlobalVariableSize), 0x8);\r
- } else {\r
- GlobalVariableBase = mGlobalVariableBase;\r
- }\r
-\r
- return (VOID*)(GlobalVariableBase + VariableOffset);\r
-}\r