diff options
author | Russell King <rmk+kernel@arm.linux.org.uk> | 2015-09-03 15:28:50 +0100 |
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committer | Russell King <rmk+kernel@arm.linux.org.uk> | 2015-09-03 15:28:50 +0100 |
commit | 3ff32a0def6e0d2e21a6c5ad1b00726592774018 (patch) | |
tree | af683b2cb62f7e5ee18cb109d15dcfd43769b984 /include/linux/psci.h | |
parent | 40d3f02851577da27b5cbb1538888301245ef1e7 (diff) | |
parent | 81497953e37bc28209d9a647171ea93b4a99fc57 (diff) |
Merge branch 'devel-stable' into for-linus
Conflicts:
drivers/perf/arm_pmu.c
Diffstat (limited to 'include/linux/psci.h')
-rw-r--r-- | include/linux/psci.h | 52 |
1 files changed, 52 insertions, 0 deletions
diff --git a/include/linux/psci.h b/include/linux/psci.h new file mode 100644 index 000000000000..a682fcc91c33 --- /dev/null +++ b/include/linux/psci.h @@ -0,0 +1,52 @@ +/* + * 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) 2015 ARM Limited + */ + +#ifndef __LINUX_PSCI_H +#define __LINUX_PSCI_H + +#include <linux/init.h> +#include <linux/types.h> + +#define PSCI_POWER_STATE_TYPE_STANDBY 0 +#define PSCI_POWER_STATE_TYPE_POWER_DOWN 1 + +bool psci_tos_resident_on(int cpu); + +struct psci_operations { + int (*cpu_suspend)(u32 state, unsigned long entry_point); + int (*cpu_off)(u32 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; + +#if defined(CONFIG_ARM_PSCI_FW) +int __init psci_dt_init(void); +#else +static inline int psci_dt_init(void) { return 0; } +#endif + +#if defined(CONFIG_ARM_PSCI_FW) && defined(CONFIG_ACPI) +int __init psci_acpi_init(void); +bool __init acpi_psci_present(void); +bool __init acpi_psci_use_hvc(void); +#else +static inline int psci_acpi_init(void) { return 0; } +static inline bool acpi_psci_present(void) { return false; } +#endif + +#endif /* __LINUX_PSCI_H */ |