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428afca32b
Most of the ACPI static parsing methods (methods that can be called without initializing a full AML parser) are not tied to any specific platform or CPU architecture. The only method that is platform-specific is the one that finds the RSDP structure. Thus, each CPU architecture/platform needs to implement it. This means that now aarch64 can implement its own method to find the ACPI RSDP structure, which would be hooked into the rest of the ACPI code elegantly, but for now I just added a FIXME and that method returns empty value of Optional<PhysicalAddress>.
78 lines
2.4 KiB
C++
78 lines
2.4 KiB
C++
/*
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* Copyright (c) 2020, Liav A. <liavalb@hotmail.co.il>
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*
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* SPDX-License-Identifier: BSD-2-Clause
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*/
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#pragma once
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#include <AK/Function.h>
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#include <AK/NonnullOwnPtr.h>
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#include <AK/OwnPtr.h>
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#include <AK/Types.h>
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#include <Kernel/Arch/x86_64/IRQController.h>
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#include <Kernel/Arch/x86_64/Interrupts/IOAPIC.h>
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#include <Kernel/Firmware/ACPI/Definitions.h>
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#include <Kernel/Interrupts/GenericInterruptHandler.h>
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#include <Kernel/Library/LockRefPtr.h>
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namespace Kernel {
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class ISAInterruptOverrideMetadata {
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public:
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ISAInterruptOverrideMetadata(u8 bus, u8 source, u32 global_system_interrupt, u16 flags)
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: m_bus(bus)
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, m_source(source)
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, m_global_system_interrupt(global_system_interrupt)
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, m_flags(flags)
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{
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}
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u8 bus() const { return m_bus; }
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u8 source() const { return m_source; }
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u32 gsi() const { return m_global_system_interrupt; }
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u16 flags() const { return m_flags; }
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private:
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const u8 m_bus;
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const u8 m_source;
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const u32 m_global_system_interrupt;
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const u16 m_flags;
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};
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class InterruptManagement {
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public:
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static InterruptManagement& the();
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static void initialize();
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static bool initialized();
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static u8 acquire_mapped_interrupt_number(u8 original_irq);
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static u8 acquire_irq_number(u8 mapped_interrupt_vector);
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void switch_to_pic_mode();
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void switch_to_ioapic_mode();
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NonnullLockRefPtr<IRQController> get_responsible_irq_controller(u8 interrupt_vector);
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NonnullLockRefPtr<IRQController> get_responsible_irq_controller(IRQControllerType controller_type, u8 interrupt_vector);
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Vector<ISAInterruptOverrideMetadata> const& isa_overrides() const { return m_isa_interrupt_overrides; }
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u8 get_mapped_interrupt_vector(u8 original_irq);
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u8 get_irq_vector(u8 mapped_interrupt_vector);
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void enumerate_interrupt_handlers(Function<void(GenericInterruptHandler&)>);
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IRQController& get_interrupt_controller(size_t index);
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protected:
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virtual ~InterruptManagement() = default;
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private:
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InterruptManagement();
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ErrorOr<Optional<PhysicalAddress>> find_madt_physical_address();
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void locate_apic_data();
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Vector<NonnullLockRefPtr<IRQController>> m_interrupt_controllers;
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Vector<ISAInterruptOverrideMetadata> m_isa_interrupt_overrides;
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Vector<PCIInterruptOverrideMetadata> m_pci_interrupt_overrides;
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Optional<PhysicalAddress> m_madt_physical_address;
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};
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}
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