[edk2-devel] [PATCH v3 22/34] MdePkg: Add LoongArch LOONGARCH64 binding
Chao Li
lichao at loongson.cn
Tue Sep 27 11:13:42 UTC 2022
REF: https://bugzilla.tianocore.org/show_bug.cgi?id=4053
Add LOONGARCH64 sections in MdePkg.dec and LOONGARCH64 ProcessorBind.h
Cc: Michael D Kinney <michael.d.kinney at intel.com>
Cc: Liming Gao <gaoliming at byosoft.com.cn>
Cc: Zhiguang Liu <zhiguang.liu at intel.com>
Signed-off-by: Chao Li <lichao at loongson.cn>
Co-authored-by: Baoqi Zhang <zhangbaoqi at loongson.cn>
Co-authored-by: Dongyan Qian <qiandongyan at loongson.cn>
Reviewed-by: Michael D Kinney <michael.d.kinney at intel.com>
---
MdePkg/Include/LoongArch64/ProcessorBind.h | 120 +++++++++++++++++++++
MdePkg/MdePkg.dec | 4 +
MdePkg/MdePkg.dsc | 3 +-
3 files changed, 126 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..502d479099
--- /dev/null
+++ b/MdePkg/Include/LoongArch64/ProcessorBind.h
@@ -0,0 +1,120 @@
+/** @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 f1ebf9e251..4c81cbd75a 100644
--- a/MdePkg/MdePkg.dec
+++ b/MdePkg/MdePkg.dec
@@ -7,6 +7,7 @@
# Copyright (c) 2007 - 2022, 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 cc1ac196a9..493a13ec91 100644
--- a/MdePkg/MdePkg.dsc
+++ b/MdePkg/MdePkg.dsc
@@ -4,6 +4,7 @@
# Copyright (c) 2007 - 2022, 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
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