source: src/linux/universal/linux-3.18/arch/arm/include/asm/psci.h @ 31885

Last change on this file since 31885 was 31885, checked in by brainslayer, 5 weeks ago

update

File size: 1.4 KB
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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
41int psci_init(void);
42bool psci_smp_available(void);
43#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 */
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