| /* 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 */ |