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74 lines
1.3 KiB
74 lines
1.3 KiB
// SPDX-License-Identifier: GPL-2.0 |
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/* |
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* Copyright (C) 2020-2022 Loongson Technology Corporation Limited |
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*/ |
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#include <linux/kernel.h> |
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#include <linux/acpi.h> |
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#include <linux/efi.h> |
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#include <linux/export.h> |
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#include <linux/pm.h> |
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#include <linux/types.h> |
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#include <linux/reboot.h> |
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#include <linux/delay.h> |
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#include <linux/console.h> |
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#include <acpi/reboot.h> |
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#include <asm/idle.h> |
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#include <asm/loongarch.h> |
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void (*pm_power_off)(void); |
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EXPORT_SYMBOL(pm_power_off); |
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void machine_halt(void) |
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{ |
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#ifdef CONFIG_SMP |
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preempt_disable(); |
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smp_send_stop(); |
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#endif |
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local_irq_disable(); |
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clear_csr_ecfg(ECFG0_IM); |
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pr_notice("\n\n** You can safely turn off the power now **\n\n"); |
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console_flush_on_panic(CONSOLE_FLUSH_PENDING); |
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while (true) { |
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__arch_cpu_idle(); |
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} |
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} |
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void machine_power_off(void) |
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{ |
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#ifdef CONFIG_SMP |
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preempt_disable(); |
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smp_send_stop(); |
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#endif |
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do_kernel_power_off(); |
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#ifdef CONFIG_EFI |
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efi.reset_system(EFI_RESET_SHUTDOWN, EFI_SUCCESS, 0, NULL); |
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#endif |
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while (true) { |
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__arch_cpu_idle(); |
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} |
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} |
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void machine_restart(char *command) |
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{ |
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#ifdef CONFIG_SMP |
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preempt_disable(); |
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smp_send_stop(); |
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#endif |
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do_kernel_restart(command); |
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#ifdef CONFIG_EFI |
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if (efi_capsule_pending(NULL)) |
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efi_reboot(REBOOT_WARM, NULL); |
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else |
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efi_reboot(REBOOT_COLD, NULL); |
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#endif |
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if (!acpi_disabled) |
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acpi_reboot(); |
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while (true) { |
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__arch_cpu_idle(); |
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} |
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}
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