/** @file | |
Processor or Compiler specific defines and types for RISC-V | |
Copyright (c) 2016 - 2020, Hewlett Packard Enterprise Development LP. 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_RISCV64 | |
// | |
// Make sure we are using the correct packing rules per EFI specification | |
// | |
#if !defined (__GNUC__) | |
#pragma pack() | |
#endif | |
/// | |
/// 8-byte unsigned value | |
/// | |
typedef unsigned long long UINT64 __attribute__ ((aligned (8))); | |
/// | |
/// 8-byte signed value | |
/// | |
typedef long long INT64 __attribute__ ((aligned (8))); | |
/// | |
/// 4-byte unsigned value | |
/// | |
typedef unsigned int UINT32 __attribute__ ((aligned (4))); | |
/// | |
/// 4-byte signed value | |
/// | |
typedef int INT32 __attribute__ ((aligned (4))); | |
/// | |
/// 2-byte unsigned value | |
/// | |
typedef unsigned short UINT16 __attribute__ ((aligned (2))); | |
/// | |
/// 2-byte Character. Unless otherwise specified all strings are stored in the | |
/// UTF-16 encoding format as defined by Unicode 2.1 and ISO/IEC 10646 standards. | |
/// | |
typedef unsigned short CHAR16 __attribute__ ((aligned (2))); | |
/// | |
/// 2-byte signed value | |
/// | |
typedef short INT16 __attribute__ ((aligned (2))); | |
/// | |
/// Logical Boolean. 1-byte value containing 0 for FALSE or a 1 for TRUE. Other | |
/// values are undefined. | |
/// | |
typedef unsigned char BOOLEAN; | |
/// | |
/// 1-byte unsigned value | |
/// | |
typedef unsigned char UINT8; | |
/// | |
/// 1-byte Character | |
/// | |
typedef char CHAR8; | |
/// | |
/// 1-byte signed value | |
/// | |
typedef signed 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 __attribute__ ((aligned (8))); | |
/// | |
/// Signed value of native width. (4 bytes on supported 32-bit processor instructions, | |
/// 8 bytes on supported 64-bit processor instructions) | |
/// | |
typedef INT64 INTN __attribute__ ((aligned (8))); | |
// | |
// 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 RV64 address | |
/// | |
#define MAX_ADDRESS 0xFFFFFFFFFFFFFFFFULL | |
/// | |
/// Maximum usable address at boot time (48 bits using 4 KB pages in Supervisor mode) | |
/// | |
#define MAX_ALLOC_ADDRESS 0xFFFFFFFFFFFFULL | |
/// | |
/// Maximum legal RISC-V INTN and UINTN values. | |
/// | |
#define MAX_INTN ((INTN)0x7FFFFFFFFFFFFFFFULL) | |
#define MAX_UINTN ((UINTN)0xFFFFFFFFFFFFFFFFULL) | |
/// | |
/// The stack alignment required for RISC-V | |
/// | |
#define CPU_STACK_ALIGNMENT 16 | |
/// | |
/// Page allocation granularity for RISC-V | |
/// | |
#define DEFAULT_PAGE_ALLOCATION_GRANULARITY (0x1000) | |
#define RUNTIME_PAGE_ALLOCATION_GRANULARITY (0x1000) | |
// | |
// Modifier to ensure that all protocol member functions and EFI intrinsics | |
// use the correct C calling convention. All protocol member functions and | |
// EFI intrinsics are required to modify their member functions with EFIAPI. | |
// | |
#ifdef EFIAPI | |
/// | |
/// If EFIAPI is already defined, then we use that definition. | |
/// | |
#elif defined (__GNUC__) | |
/// | |
/// Define the standard calling convention regardless of optimization level | |
/// The GCC support assumes a GCC compiler that supports the EFI ABI. The EFI | |
/// ABI is much closer to the x64 Microsoft* ABI than standard x64 (x86-64) | |
/// GCC ABI. Thus a standard x64 (x86-64) GCC compiler can not be used for | |
/// x64. Warning the assembly code in the MDE x64 does not follow the correct | |
/// ABI for the standard x64 (x86-64) GCC. | |
/// | |
#define EFIAPI | |
#else | |
/// | |
/// The default for a non Microsoft* or GCC compiler is to assume the EFI ABI | |
/// is the standard. | |
/// | |
#define EFIAPI | |
#endif | |
#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 | |
/** | |
Return the pointer to the first instruction of a function given a function pointer. | |
On x64 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 |