xref: /openbmc/linux/arch/arm/include/asm/psci.h (revision 2bdd424f)
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 
20 struct psci_power_state {
21 	u16	id;
22 	u8	type;
23 	u8	affinity_level;
24 };
25 
26 struct 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 };
33 
34 extern struct psci_operations psci_ops;
35 
36 #endif /* __ASM_ARM_PSCI_H */
37