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