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Diffstat (limited to 'dev/kernel/HALKit/AMD64/Processor.h')
| -rw-r--r-- | dev/kernel/HALKit/AMD64/Processor.h | 283 |
1 files changed, 0 insertions, 283 deletions
diff --git a/dev/kernel/HALKit/AMD64/Processor.h b/dev/kernel/HALKit/AMD64/Processor.h deleted file mode 100644 index db1ed573..00000000 --- a/dev/kernel/HALKit/AMD64/Processor.h +++ /dev/null @@ -1,283 +0,0 @@ -/* ======================================== - - Copyright (C) 2024-2025, Amlal El Mahrouss, licensed under the Apache 2.0 license. - - File: Prcoessor.h - Purpose: AMD64 processor abstraction. - - Revision History: - - 30/01/24: Added file (amlel) - -======================================== */ - -#pragma once - -#ifdef __NE_AMD64__ - -#include <FirmwareKit/Handover.h> -#include <HALKit/AMD64/Paging.h> -#include <NeKit/Array.h> -#include <NeKit/Defines.h> -#include <NeKit/Utils.h> - -#include <HALKit/AMD64/CPUID.h> - -#define kPITControlPort (0x43) -#define kPITChannel0Port (0x40) -#define kPITFrequency (1193180) - -#define kPICCommand (0x20) -#define kPICData (0x21) -#define kPIC2Command (0xA0) -#define kPIC2Data (0xA1) - -#define kIOAPICRegVal (4) -#define kIOAPICRegReg (0) - -#define rtl_nop_op() asm volatile("nop") - -/// @brief Maximum entries of the interrupt descriptor table. -#define kKernelIdtSize (0x100) - -/// @brief interrupt for system call. -#define kKernelInterruptId (0x32) - -#define IsActiveLow(FLG) (FLG & 2) -#define IsLevelTriggered(FLG) (FLG & 8) - -#define kInterruptGate (0x8E) -#define kUserInterruptGate (0xEE) -#define kTrapGate (0xEF) -#define kTaskGate (0b10001100) -#define kIDTSelector (0x08) - -namespace Kernel { -namespace Detail::AMD64 { - struct PACKED InterruptDescriptorAMD64 final { - UInt16 OffsetLow; // offset bits 0..15 - UInt16 Selector; // a code segment selector in GDT or LDT - UInt8 Ist; - UInt8 TypeAttributes; - UInt16 OffsetMid; - UInt32 OffsetHigh; - UInt32 Zero; // reserved - }; -} // namespace Detail::AMD64 -} // namespace Kernel - -namespace Kernel::HAL { -/// @brief Memory Manager mapping flags. -enum { - kMMFlagsInvalid = 1 << 0, - kMMFlagsPresent = 1 << 1, - kMMFlagsWr = 1 << 2, - kMMFlagsUser = 1 << 3, - kMMFlagsNX = 1 << 4, - kMMFlagsPCD = 1 << 5, - kMMFlagsPwt = 1 << 6, - kMMFlagsCount = 6, -}; - -struct PACKED Register64 final { - UShort Limit; - UIntPtr Base; -}; - -using RawRegister = UInt64; -using Reg = RawRegister; -using InterruptId = UInt16; /* For each element in the IVT */ - -/// @brief Stack frame (as retrieved from assembly.) -struct PACKED StackFrame { - Reg IP; - Reg SP; - Reg R8; - Reg R9; - Reg R10; - Reg R11; - Reg R12; - Reg R13; - Reg R14; - Reg R15; -}; - -typedef StackFrame* StackFramePtr; - -class InterruptDescriptor final { - public: - UShort Offset; - UShort Selector; - UChar Ist; - UChar Atrributes; - - UShort SecondOffset; - UInt ThirdOffset; - UInt Zero; - - operator bool() { return Offset != 0xFFFF; } -}; - -using InterruptDescriptorArray = Array<InterruptDescriptor, 256>; - -class SegmentDescriptor final { - public: - UInt16 Base; - UInt8 BaseMiddle; - UInt8 BaseHigh; - - UShort Limit; - UChar Gran; - UChar AccessByte; -}; - -/*** - * @brief Segment Boolean operations - */ -class SegmentDescriptorComparator final { - public: - Bool IsValid(SegmentDescriptor& seg) { return seg.Base > seg.Limit; } - - Bool Equals(SegmentDescriptor& seg, SegmentDescriptor& segRight) { - return seg.Base == segRight.Base && seg.Limit == segRight.Limit; - } -}; - -using SegmentArray = Array<SegmentDescriptor, 6>; - -class GDTLoader final { - public: - static Void Load(Register64& gdt); - static Void Load(Ref<Register64>& gdt); -}; - -class IDTLoader final { - public: - static Void Load(Register64& idt); - static Void Load(Ref<Register64>& idt); -}; - -/***********************************************************************************/ -/// @brief Is the current config SMP aware? -/// @return True if YES, False if not. -/***********************************************************************************/ - -Bool mp_is_smp(Void) noexcept; - -/***********************************************************************************/ -/// @brief Fetch and enable SMP scheduler. -/// @param vendor_ptr SMP containing structure. -/***********************************************************************************/ -Void mp_init_cores(VoidPtr vendor_ptr) noexcept; - -/***********************************************************************************/ -/// @brief Do a cpuid to check if MSR exists on CPU. -/// @retval true it does exists. -/// @retval false it doesn't. -/***********************************************************************************/ -Bool hal_has_msr() noexcept; - -/***********************************************************************************/ -/// @brief Get Model specific register inside core. -/// @param msr MSR -/// @param lo low byte -/// @param hi high byte -/***********************************************************************************/ -Void hal_get_msr(UInt32 msr, UInt32* lo, UInt32* hi) noexcept; - -/// @brief Set Model-specific register. -/// @param msr MSR -/// @param lo low byte -/// @param hi high byte -Void hal_set_msr(UInt32 msr, UInt32 lo, UInt32 hi) noexcept; - -/// @brief Processor specific namespace. -namespace Detail { - /* @brief TSS struct. */ - struct NE_TSS final { - UInt32 fReserved1; - UInt64 fRsp0; - UInt64 fRsp1; - UInt64 fRsp2; - UInt64 fReserved2; - UInt64 fIst1; - UInt64 fIst2; - UInt64 fIst3; - UInt64 fIst4; - UInt64 fIst5; - UInt64 fIst6; - UInt64 fIst7; - UInt64 fReserved3; - UInt16 fReserved4; - UInt16 fIopb; - }; - - /** - @brief Global descriptor table entry, either null, code or data. - */ - - struct PACKED NE_GDT_ENTRY final { - UInt16 fLimitLow; - UInt16 fBaseLow; - UInt8 fBaseMid; - UInt8 fAccessByte; - UInt8 fFlags; - UInt8 fBaseHigh; - }; -} // namespace Detail - -class LAPICDmaWrapper final { - public: - explicit LAPICDmaWrapper(VoidPtr base); - ~LAPICDmaWrapper(); - - NE_COPY_DEFAULT(LAPICDmaWrapper) - - public: - UInt32 Read(UInt16 reg) noexcept; - Void Write(UInt16 reg, UInt32 value) noexcept; - - private: - VoidPtr fApic{nullptr}; -}; - -/// @brief Set a PTE from pd_base. -/// @param virt_addr a valid virtual address. -/// @param phys_addr point to physical address. -/// @param flags the flags to put on the page. -/// @return Status code of page manip. -EXTERN_C Int32 mm_map_page(VoidPtr virtual_address, VoidPtr physical_address, UInt32 flags, - UInt32 level = 2); - -EXTERN_C UInt8 rt_in8(UInt16 port); -EXTERN_C UInt16 rt_in16(UInt16 port); -EXTERN_C UInt32 rt_in32(UInt16 port); - -EXTERN_C Void rt_out16(UShort port, UShort byte); -EXTERN_C Void rt_out8(UShort port, UChar byte); -EXTERN_C Void rt_out32(UShort port, UInt byte); - -EXTERN_C Void rt_wait_400ns(); -EXTERN_C Void rt_halt(); -EXTERN_C Void rt_cli(); -EXTERN_C Void rt_sti(); -EXTERN_C Void rt_cld(); -EXTERN_C Void rt_std(); - -EXTERN_C UIntPtr mm_get_page_addr(VoidPtr virtual_address); - -EXTERN_C Int32 mm_memory_fence(VoidPtr virtual_address); -} // namespace Kernel::HAL - -EXTERN_C Kernel::Void idt_handle_generic(Kernel::UIntPtr rsp); -EXTERN_C Kernel::Void idt_handle_gpf(Kernel::UIntPtr rsp); -EXTERN_C Kernel::Void idt_handle_math(Kernel::UIntPtr rsp); -EXTERN_C Kernel::Void idt_handle_pf(Kernel::UIntPtr rsp); - -EXTERN_C ATTRIBUTE(naked) Kernel::Void hal_load_idt(Kernel::HAL::Register64 ptr); -EXTERN_C ATTRIBUTE(naked) Kernel::Void hal_load_gdt(Kernel::HAL::Register64 ptr); - -inline Kernel::VoidPtr kKernelBitMpStart = nullptr; -inline Kernel::UIntPtr kKernelBitMpSize = 0UL; - -#endif // __NE_AMD64__ */
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