/** @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 |