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Diffstat (limited to 'kernel/arch/arm/include/asm/psci.h')
| -rw-r--r-- | kernel/arch/arm/include/asm/psci.h | 48 |
1 files changed, 48 insertions, 0 deletions
diff --git a/kernel/arch/arm/include/asm/psci.h b/kernel/arch/arm/include/asm/psci.h new file mode 100644 index 000000000..c25ef3ec6 --- /dev/null +++ b/kernel/arch/arm/include/asm/psci.h @@ -0,0 +1,48 @@ +/* + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * Copyright (C) 2012 ARM Limited + */ + +#ifndef __ASM_ARM_PSCI_H +#define __ASM_ARM_PSCI_H + +#define PSCI_POWER_STATE_TYPE_STANDBY 0 +#define PSCI_POWER_STATE_TYPE_POWER_DOWN 1 + +struct psci_power_state { + u16 id; + u8 type; + u8 affinity_level; +}; + +struct psci_operations { + int (*cpu_suspend)(struct psci_power_state state, + unsigned long entry_point); + int (*cpu_off)(struct psci_power_state state); + int (*cpu_on)(unsigned long cpuid, unsigned long entry_point); + int (*migrate)(unsigned long cpuid); + int (*affinity_info)(unsigned long target_affinity, + unsigned long lowest_affinity_level); + int (*migrate_info_type)(void); +}; + +extern struct psci_operations psci_ops; +extern struct smp_operations psci_smp_ops; + +#ifdef CONFIG_ARM_PSCI +int psci_init(void); +bool psci_smp_available(void); +#else +static inline int psci_init(void) { return 0; } +static inline bool psci_smp_available(void) { return false; } +#endif + +#endif /* __ASM_ARM_PSCI_H */ |