| /** @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 long UINT64; | |
| typedef long 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 |