[staging/LoongArch RESEND PATCH v1 19/33] MdePkg: Add LoongArch LOONGARCH64 binding

["Chao Li" <lichao@loongson.cn>]

Add LOONGARCH64 sections in MdePkg.dec and LOONGARCH64 ProcessorBind.h

Cc: Michael D Kinney <michael.d.kinney@intel.com>
Cc: Liming Gao <gaoliming@byosoft.com.cn>
Cc: Zhiguang Liu <zhiguang.liu@intel.com>

Signed-off-by: Chao Li <lichao@loongson.cn>
Co-authored-by: Baoqi Zhang <zhangbaoqi@loongson.cn>
Co-authored-by: Dongyan Qian <qiandongyan@loongson.cn>
---
 MdePkg/Include/LoongArch64/ProcessorBind.h | 121 +++++++++++++++++++++
 MdePkg/MdePkg.dec                          |   4 +
 MdePkg/MdePkg.dsc                          |   3 +-
 3 files changed, 127 insertions(+), 1 deletion(-)
 create mode 100644 MdePkg/Include/LoongArch64/ProcessorBind.h

diff --git a/MdePkg/Include/LoongArch64/ProcessorBind.h b/MdePkg/Include/LoongArch64/ProcessorBind.h
new file mode 100644
index 0000000000..a10481e285
--- /dev/null
+++ b/MdePkg/Include/LoongArch64/ProcessorBind.h
@@ -0,0 +1,121 @@
+/** @file
+  Processor or Compiler specific defines and types for LoongArch
+
+  Copyright (c) 2022 Loongson Technology Corporation Limited. All rights reserved.<BR>
+
+  SPDX-License-Identifier: BSD-2-Clause-Patent
+
+**/
+
+#ifndef __PROCESSOR_BIND_H__
+#define __PROCESSOR_BIND_H__
+
+//
+// Define the processor type so other code can make processor based choices
+//
+#define MDE_CPU_LOONGARCH64
+
+#define EFIAPI
+
+//
+// Make sure we are using the correct packing rules per EFI specification
+//
+#ifndef __GNUC__
+#pragma pack()
+#endif
+
+//
+// Assume standard LoongArch 64-bit alignment.
+// Need to check portability of long long
+//
+typedef unsigned long       UINT64;
+typedef long                INT64;
+typedef unsigned int        UINT32;
+typedef int                 INT32;
+typedef unsigned short      UINT16;
+typedef unsigned short      CHAR16;
+typedef short               INT16;
+typedef unsigned char       BOOLEAN;
+typedef unsigned char       UINT8;
+typedef char                CHAR8;
+typedef char                INT8;
+
+//
+// Unsigned value of native width.  (4 bytes on supported 32-bit processor instructions,
+// 8 bytes on supported 64-bit processor instructions)
+//
+
+typedef UINT64  UINTN;
+
+//
+// Signed value of native width.  (4 bytes on supported 32-bit processor instructions,
+// 8 bytes on supported 64-bit processor instructions)
+//
+typedef INT64   INTN;
+
+//
+// Processor specific defines
+//
+
+//
+// A value of native width with the highest bit set.
+//
+#define MAX_BIT     0x8000000000000000ULL
+//
+// A value of native width with the two highest bits set.
+//
+#define MAX_2_BITS  0xC000000000000000ULL
+
+//
+// Maximum legal LoongArch 64-bit address
+//
+#define MAX_ADDRESS   0xFFFFFFFFFFFFFFFFULL
+
+//
+// Maximum usable address at boot time (48 bits using 4KB pages)
+//
+#define MAX_ALLOC_ADDRESS   0xFFFFFFFFFFFFULL
+
+
+//
+// Maximum legal LoongArch  64-bit INTN and UINTN values.
+//
+#define MAX_INTN   ((INTN)0x7FFFFFFFFFFFFFFFULL)
+#define MAX_UINTN  ((UINTN)0xFFFFFFFFFFFFFFFFULL)
+
+//
+// Page allocation granularity for LoongArch
+//
+#define DEFAULT_PAGE_ALLOCATION_GRANULARITY   (0x1000)
+#define RUNTIME_PAGE_ALLOCATION_GRANULARITY   (0x10000)
+
+#if defined(__GNUC__)
+  //
+  // For GNU assembly code, .global or .globl can declare global symbols.
+  // Define this macro to unify the usage.
+  //
+  #define ASM_GLOBAL .globl
+#endif
+
+//
+// The stack alignment required for LoongArch
+//
+#define CPU_STACK_ALIGNMENT   16
+
+/**
+  Return the pointer to the first instruction of a function given a function pointer.
+  On LOONGARCH CPU architectures, these two pointer values are the same,
+  so the implementation of this macro is very simple.
+
+  @param  FunctionPointer   A pointer to a function.
+
+  @return The pointer to the first instruction of a function given a function pointer.
+
+**/
+#define FUNCTION_ENTRY_POINT(FunctionPointer) (VOID *)(UINTN)(FunctionPointer)
+
+#ifndef __USER_LABEL_PREFIX__
+#define __USER_LABEL_PREFIX__
+#endif
+
+#endif
diff --git a/MdePkg/MdePkg.dec b/MdePkg/MdePkg.dec
index 59b405928b..18d42047e9 100644
--- a/MdePkg/MdePkg.dec
+++ b/MdePkg/MdePkg.dec
@@ -7,6 +7,7 @@
 # Copyright (c) 2007 - 2021, Intel Corporation. All rights reserved.<BR>
 # Portions copyright (c) 2008 - 2009, Apple Inc. All rights reserved.<BR>
 # (C) Copyright 2016 - 2021 Hewlett Packard Enterprise Development LP<BR>
+# Copyright (c) 2022 Loongson Technology Corporation Limited. All rights reserved.<BR>
 #
 # SPDX-License-Identifier: BSD-2-Clause-Patent
 #
@@ -43,6 +44,9 @@
 [Includes.RISCV64]
   Include/RiscV64
 
+[Includes.LOONGARCH64]
+  Include/LoongArch64
+
 [LibraryClasses]
   ##  @libraryclass  Provides most usb APIs to support the Hid requests defined in Usb Hid 1.1 spec
   #                  and the standard requests defined in Usb 1.1 spec.
diff --git a/MdePkg/MdePkg.dsc b/MdePkg/MdePkg.dsc
index a94959169b..1c83726b86 100644
--- a/MdePkg/MdePkg.dsc
+++ b/MdePkg/MdePkg.dsc
@@ -4,6 +4,7 @@
 # Copyright (c) 2007 - 2021, Intel Corporation. All rights reserved.<BR>
 # Portions copyright (c) 2008 - 2009, Apple Inc. All rights reserved.<BR>
 # (C) Copyright 2020 Hewlett Packard Enterprise Development LP<BR>
+# Copyright (c) 2022 Loongson Technology Corporation Limited. All rights reserved.<BR>
 #
 #    SPDX-License-Identifier: BSD-2-Clause-Patent
 #
@@ -15,7 +16,7 @@
   PLATFORM_VERSION               = 1.08
   DSC_SPECIFICATION              = 0x00010005
   OUTPUT_DIRECTORY               = Build/Mde
-  SUPPORTED_ARCHITECTURES        = IA32|X64|EBC|ARM|AARCH64|RISCV64
+  SUPPORTED_ARCHITECTURES        = IA32|X64|EBC|ARM|AARCH64|RISCV64|LOONGARCH64
   BUILD_TARGETS                  = DEBUG|RELEASE|NOOPT
   SKUID_IDENTIFIER               = DEFAULT
 
-- 
2.27.0