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| 2 | |
| 3 | * Copyright (C) 2020-2022 Loongson Technology Corporation Limited
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| 4 |
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| 5 | #include <linux/kernel.h>
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| 6 | #include <linux/acpi.h>
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| 7 | #include <linux/efi.h>
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| 8 | #include <linux/export.h>
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| 9 | #include <linux/pm.h>
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| 10 | #include <linux/types.h>
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| 11 | #include <linux/reboot.h>
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| 12 | #include <linux/delay.h>
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| 13 | #include <linux/console.h>
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| 14 |
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| 15 | #include <acpi/reboot.h>
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| 16 | #include <asm/idle.h>
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| 17 | #include <asm/loongarch.h>
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| 18 | #include <asm/loongson.h>
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| 19 |
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| 20 | void (*pm_power_off)(void);
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| 21 | EXPORT_SYMBOL(pm_power_off);
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| 22 |
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| 23 | void machine_halt(void)
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| 24 | {
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| 25 | #ifdef CONFIG_SMP
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| 26 | preempt_disable();
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| 27 | smp_send_stop();
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| 28 | #endif
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| 29 | local_irq_disable();
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| 30 | clear_csr_ecfg(ECFG0_IM);
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| 31 |
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| 32 | pr_notice("\n\n** You can safely turn off the power now **\n\n");
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| 33 | console_flush_on_panic(CONSOLE_FLUSH_PENDING);
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| 34 |
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| 35 | while (true) {
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| 36 | __asm__ __volatile__("idle 0" : : : "memory");
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| 37 | }
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| 38 | }
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| 39 |
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| 40 | void machine_power_off(void)
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| 41 | {
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| 42 | #ifdef CONFIG_SMP
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| 43 | preempt_disable();
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| 44 | smp_send_stop();
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| 45 | #endif
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| 46 | #ifdef CONFIG_PM
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| 47 | if (!acpi_disabled)
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| 48 | enable_pci_wakeup();
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| 49 | #endif
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| 50 | do_kernel_power_off();
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| 51 | #ifdef CONFIG_EFI
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| 52 | efi.reset_system(EFI_RESET_SHUTDOWN, EFI_SUCCESS, 0, NULL);
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| 53 | #endif
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| 54 |
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| 55 | while (true) {
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| 56 | __asm__ __volatile__("idle 0" : : : "memory");
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| 57 | }
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| 58 | }
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| 59 |
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| 60 | void machine_restart(char *command)
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| 61 | {
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| 62 | #ifdef CONFIG_SMP
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| 63 | preempt_disable();
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| 64 | smp_send_stop();
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| 65 | #endif
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| 66 | do_kernel_restart(command);
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| 67 | #ifdef CONFIG_EFI
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| 68 | if (efi_capsule_pending(NULL))
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| 69 | efi_reboot(REBOOT_WARM, NULL);
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| 70 | else
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| 71 | efi_reboot(REBOOT_COLD, NULL);
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| 72 | #endif
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| 73 | if (!acpi_disabled)
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| 74 | acpi_reboot();
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| 75 |
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| 76 | while (true) {
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| 77 | __asm__ __volatile__("idle 0" : : : "memory");
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| 78 | }
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| 79 | }
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