ladybird/Kernel/Arch/Interrupts.h
Pankaj Raghav 91da264a4c Kernel: Add reserve_interrupt_handlers API
MSI(x) interrupts need to reserve IRQs so that it can be programmed by
the device. Add an API to reserve contiguous ranges of interrupt
handlers so that it can used by PCI devices that use MSI(x) mechanism.

This API needs to be implemented by aarch64 architecture.
2023-05-07 21:16:41 +02:00

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C++

/*
* Copyright (c) 2022, Timon Kruiper <timonkruiper@gmail.com>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#pragma once
#include <AK/Platform.h>
#include <AK/Types.h>
#if ARCH(X86_64)
# include <Kernel/Arch/x86_64/Interrupts.h>
#endif
namespace Kernel {
class GenericInterruptHandler;
GenericInterruptHandler& get_interrupt_handler(u8 interrupt_number);
void register_generic_interrupt_handler(u8 number, GenericInterruptHandler&);
void unregister_generic_interrupt_handler(u8 number, GenericInterruptHandler&);
ErrorOr<u8> reserve_interrupt_handlers(u8 number_of_irqs);
void initialize_interrupts();
}