psci.h (1559B)
1/* SPDX-License-Identifier: GPL-2.0-only */ 2/* 3 * 4 * Copyright (C) 2015 ARM Limited 5 */ 6 7#ifndef __LINUX_PSCI_H 8#define __LINUX_PSCI_H 9 10#include <linux/arm-smccc.h> 11#include <linux/init.h> 12#include <linux/types.h> 13 14#define PSCI_POWER_STATE_TYPE_STANDBY 0 15#define PSCI_POWER_STATE_TYPE_POWER_DOWN 1 16 17bool psci_tos_resident_on(int cpu); 18 19int psci_cpu_suspend_enter(u32 state); 20bool psci_power_state_is_valid(u32 state); 21int psci_set_osi_mode(bool enable); 22bool psci_has_osi_support(void); 23 24struct psci_operations { 25 u32 (*get_version)(void); 26 int (*cpu_suspend)(u32 state, unsigned long entry_point); 27 int (*cpu_off)(u32 state); 28 int (*cpu_on)(unsigned long cpuid, unsigned long entry_point); 29 int (*migrate)(unsigned long cpuid); 30 int (*affinity_info)(unsigned long target_affinity, 31 unsigned long lowest_affinity_level); 32 int (*migrate_info_type)(void); 33}; 34 35extern struct psci_operations psci_ops; 36 37struct psci_0_1_function_ids { 38 u32 cpu_suspend; 39 u32 cpu_on; 40 u32 cpu_off; 41 u32 migrate; 42}; 43 44struct psci_0_1_function_ids get_psci_0_1_function_ids(void); 45 46#if defined(CONFIG_ARM_PSCI_FW) 47int __init psci_dt_init(void); 48#else 49static inline int psci_dt_init(void) { return 0; } 50#endif 51 52#if defined(CONFIG_ARM_PSCI_FW) && defined(CONFIG_ACPI) 53int __init psci_acpi_init(void); 54bool __init acpi_psci_present(void); 55bool acpi_psci_use_hvc(void); 56#else 57static inline int psci_acpi_init(void) { return 0; } 58static inline bool acpi_psci_present(void) { return false; } 59static inline bool acpi_psci_use_hvc(void) {return false; } 60#endif 61 62#endif /* __LINUX_PSCI_H */