| /** @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 |