1 /* SPDX-License-Identifier: GPL-2.0-only */
4 * Copyright (C) 2015 ARM Limited
10 #include <linux/arm-smccc.h>
11 #include <linux/init.h>
12 #include <linux/types.h>
14 #define PSCI_POWER_STATE_TYPE_STANDBY 0
15 #define PSCI_POWER_STATE_TYPE_POWER_DOWN 1
17 bool psci_tos_resident_on(int cpu);
19 int psci_cpu_suspend_enter(u32 state);
20 bool psci_power_state_is_valid(u32 state);
21 int psci_set_osi_mode(bool enable);
22 bool psci_has_osi_support(void);
24 struct 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);
35 extern struct psci_operations psci_ops;
37 struct psci_0_1_function_ids {
44 struct psci_0_1_function_ids get_psci_0_1_function_ids(void);
46 #if defined(CONFIG_ARM_PSCI_FW)
47 int __init psci_dt_init(void);
49 static inline int psci_dt_init(void) { return 0; }
52 #if defined(CONFIG_ARM_PSCI_FW) && defined(CONFIG_ACPI)
53 int __init psci_acpi_init(void);
54 bool __init acpi_psci_present(void);
55 bool acpi_psci_use_hvc(void);
57 static inline int psci_acpi_init(void) { return 0; }
58 static inline bool acpi_psci_present(void) { return false; }
59 static inline bool acpi_psci_use_hvc(void) {return false; }
62 #endif /* __LINUX_PSCI_H */