/* 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 */
|
