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 */

 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/init.h>
11#include <linux/types.h>
12
13#define PSCI_POWER_STATE_TYPE_STANDBY		0
14#define PSCI_POWER_STATE_TYPE_POWER_DOWN	1
15
16bool psci_tos_resident_on(int cpu);
17
18int psci_cpu_suspend_enter(u32 state);
19bool psci_power_state_is_valid(u32 state);
20
21enum psci_conduit {
22	PSCI_CONDUIT_NONE,
23	PSCI_CONDUIT_SMC,
24	PSCI_CONDUIT_HVC,
25};
26
27enum smccc_version {
28	SMCCC_VERSION_1_0,
29	SMCCC_VERSION_1_1,
30};
31
32struct psci_operations {
33	u32 (*get_version)(void);
34	int (*cpu_suspend)(u32 state, unsigned long entry_point);
35	int (*cpu_off)(u32 state);
36	int (*cpu_on)(unsigned long cpuid, unsigned long entry_point);
37	int (*migrate)(unsigned long cpuid);
38	int (*affinity_info)(unsigned long target_affinity,
39			unsigned long lowest_affinity_level);
40	int (*migrate_info_type)(void);
41	enum psci_conduit conduit;
42	enum smccc_version smccc_version;
43};
44
45extern struct psci_operations psci_ops;
 
 
 
 
 
 
 
 
 
46
47#if defined(CONFIG_ARM_PSCI_FW)
48int __init psci_dt_init(void);
49#else
50static inline int psci_dt_init(void) { return 0; }
51#endif
52
53#if defined(CONFIG_ARM_PSCI_FW) && defined(CONFIG_ACPI)
54int __init psci_acpi_init(void);
55bool __init acpi_psci_present(void);
56bool acpi_psci_use_hvc(void);
57#else
58static inline int psci_acpi_init(void) { return 0; }
59static inline bool acpi_psci_present(void) { return false; }
60static inline bool acpi_psci_use_hvc(void) {return false; }
61#endif
62
63#endif /* __LINUX_PSCI_H */