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https://github.com/SerenityOS/serenity
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0482f4e117
Linux did the same thing 18 years ago and their reasons for the change are similar to ours - https://github.com/torvalds/linux/commit/7d12e78 Most interrupt handlers (i.e. IRQ handlers) never used the register state reference anywhere so there's simply no need of passing it around. I didn't measure the performance boost but surely this change can't make things worse anyway.
30 lines
779 B
C++
30 lines
779 B
C++
/*
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* Copyright (c) 2023, Jelle Raaijmakers <jelle@gmta.nl>
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*
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* SPDX-License-Identifier: BSD-2-Clause
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*/
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#include <Kernel/Devices/Audio/IntelHDA/Controller.h>
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#include <Kernel/Devices/Audio/IntelHDA/InterruptHandler.h>
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namespace Kernel::Audio::IntelHDA {
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InterruptHandler::InterruptHandler(Controller& controller)
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: PCI::IRQHandler(controller, controller.device_identifier().interrupt_line().value())
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, m_controller(controller)
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{
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enable_irq();
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}
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bool InterruptHandler::handle_irq()
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{
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auto result_or_error = m_controller.handle_interrupt({});
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if (result_or_error.is_error()) {
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dmesgln("IntelHDA: Error during interrupt handling: {}", result_or_error.release_error());
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return false;
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}
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return result_or_error.release_value();
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}
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}
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