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/* SPDX-License-Identifier: GPL-2.0-only */ /* * * Copyright (C) 2015 ARM Limited */ #ifndef __LINUX_PSCI_H #define __LINUX_PSCI_H #include <linux/arm-smccc.h> #include <linux/init.h> #include <linux/types.h> #define PSCI_POWER_STATE_TYPE_STANDBY 0 #define PSCI_POWER_STATE_TYPE_POWER_DOWN 1 bool psci_tos_resident_on(int cpu); int psci_cpu_suspend_enter(u32 state); bool psci_power_state_is_valid(u32 state); int psci_set_osi_mode(bool enable); bool psci_has_osi_support(void); struct psci_operations { u32 (*get_version)(void); int (*cpu_suspend)(u32 state, unsigned long entry_point); int (*cpu_off)(u32 state); int (*cpu_on)(unsigned long cpuid, unsigned long entry_point); int (*migrate)(unsigned long cpuid); int (*affinity_info)(unsigned long target_affinity, unsigned long lowest_affinity_level); int (*migrate_info_type)(void); }; extern struct psci_operations psci_ops; struct psci_0_1_function_ids { u32 cpu_suspend; u32 cpu_on; u32 cpu_off; u32 migrate; }; struct psci_0_1_function_ids get_psci_0_1_function_ids(void); #if defined(CONFIG_ARM_PSCI_FW) int __init psci_dt_init(void); #else static inline int psci_dt_init(void) { return 0; } #endif #if defined(CONFIG_ARM_PSCI_FW) && defined(CONFIG_ACPI) int __init psci_acpi_init(void); bool __init acpi_psci_present(void); bool acpi_psci_use_hvc(void); #else static inline int psci_acpi_init(void) { return 0; } static inline bool acpi_psci_present(void) { return false; } static inline bool acpi_psci_use_hvc(void) {return false; } #endif #endif /* __LINUX_PSCI_H */