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Kernel: Simplify reboot & poweroff code flow a bit
Instead of using ifdefs to use the correct platform-specific methods, we can just use the same pattern we use for the microseconds_delay function which has specific implementations for each Arch CPU subdirectory. When linking a kernel image, the actual correct and platform-specific power-state changing methods will be called in Firmware/PowerState.cpp file.
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8 changed files with 138 additions and 53 deletions
55
Kernel/Firmware/PowerState.cpp
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Kernel/Firmware/PowerState.cpp
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/*
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* Copyright (c) 2023, 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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#include <AK/Format.h>
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#include <Kernel/Arch/PowerState.h>
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#include <Kernel/FileSystem/FileSystem.h>
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#include <Kernel/Firmware/ACPI/Parser.h>
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#include <Kernel/Firmware/PowerState.h>
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#include <Kernel/TTY/ConsoleManagement.h>
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#include <Kernel/Tasks/Process.h>
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namespace Kernel::Firmware {
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void reboot()
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{
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MutexLocker locker(Process::current().big_lock());
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dbgln("acquiring FS locks...");
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FileSystem::lock_all();
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dbgln("syncing mounted filesystems...");
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FileSystem::sync();
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dbgln("attempting reboot via ACPI");
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if (ACPI::is_enabled())
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ACPI::Parser::the()->try_acpi_reboot();
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arch_specific_reboot();
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dbgln("reboot attempts failed, applications will stop responding.");
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dmesgln("Reboot can't be completed. It's safe to turn off the computer!");
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Processor::halt();
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}
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void poweroff()
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{
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MutexLocker locker(Process::current().big_lock());
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ConsoleManagement::the().switch_to_debug();
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dbgln("acquiring FS locks...");
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FileSystem::lock_all();
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dbgln("syncing mounted filesystems...");
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FileSystem::sync();
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dbgln("attempting system shutdown...");
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arch_specific_poweroff();
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dbgln("shutdown attempts failed, applications will stop responding.");
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dmesgln("Shutdown can't be completed. It's safe to turn off the computer!");
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Processor::halt();
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}
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}
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Kernel/Firmware/PowerState.h
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Kernel/Firmware/PowerState.h
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/*
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* Copyright (c) 2023, 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/Types.h>
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namespace Kernel::Firmware {
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void reboot();
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void poweroff();
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}
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