psci.h (5e2aa2ed08e2e280121dc7cf5609c87d464f12ef) psci.h (be120397e7709d9d5ed88317a385ce864a2603bc)
1/*
2 * This program is free software; you can redistribute it and/or modify
3 * it under the terms of the GNU General Public License version 2 as
4 * published by the Free Software Foundation.
5 *
6 * This program is distributed in the hope that it will be useful,
7 * but WITHOUT ANY WARRANTY; without even the implied warranty of
8 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
9 * GNU General Public License for more details.
10 *
11 * Copyright (C) 2012 ARM Limited
12 */
13
14#ifndef __ASM_ARM_PSCI_H
15#define __ASM_ARM_PSCI_H
16
1/*
2 * This program is free software; you can redistribute it and/or modify
3 * it under the terms of the GNU General Public License version 2 as
4 * published by the Free Software Foundation.
5 *
6 * This program is distributed in the hope that it will be useful,
7 * but WITHOUT ANY WARRANTY; without even the implied warranty of
8 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
9 * GNU General Public License for more details.
10 *
11 * Copyright (C) 2012 ARM Limited
12 */
13
14#ifndef __ASM_ARM_PSCI_H
15#define __ASM_ARM_PSCI_H
16
17#define PSCI_POWER_STATE_TYPE_STANDBY 0
18#define PSCI_POWER_STATE_TYPE_POWER_DOWN 1
19
20struct psci_power_state {
21 u16 id;
22 u8 type;
23 u8 affinity_level;
24};
25
26struct psci_operations {
27 int (*cpu_suspend)(struct psci_power_state state,
28 unsigned long entry_point);
29 int (*cpu_off)(struct psci_power_state state);
30 int (*cpu_on)(unsigned long cpuid, unsigned long entry_point);
31 int (*migrate)(unsigned long cpuid);
32 int (*affinity_info)(unsigned long target_affinity,
33 unsigned long lowest_affinity_level);
34 int (*migrate_info_type)(void);
35};
36
37extern struct psci_operations psci_ops;
38extern struct smp_operations psci_smp_ops;
39
40#ifdef CONFIG_ARM_PSCI
17extern struct smp_operations psci_smp_ops;
18
19#ifdef CONFIG_ARM_PSCI
41int psci_init(void);
42bool psci_smp_available(void);
43#else
20bool psci_smp_available(void);
21#else
44static inline int psci_init(void) { return 0; }
45static inline bool psci_smp_available(void) { return false; }
46#endif
47
48#endif /* __ASM_ARM_PSCI_H */
22static inline bool psci_smp_available(void) { return false; }
23#endif
24
25#endif /* __ASM_ARM_PSCI_H */