diff options
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/base/Kconfig | 4 | ||||
| -rw-r--r-- | drivers/base/cpu.c | 19 |
2 files changed, 23 insertions, 0 deletions
diff --git a/drivers/base/Kconfig b/drivers/base/Kconfig index e95c67edb2c..fcbec8ac134 100644 --- a/drivers/base/Kconfig +++ b/drivers/base/Kconfig @@ -172,6 +172,10 @@ config SYS_HYPERVISOR bool default n +config GENERIC_CPU_DEVICES + bool + default n + source "drivers/base/regmap/Kconfig" config DMA_SHARED_BUFFER diff --git a/drivers/base/cpu.c b/drivers/base/cpu.c index bba70d08be6..db87e78d745 100644 --- a/drivers/base/cpu.c +++ b/drivers/base/cpu.c @@ -11,6 +11,7 @@ #include <linux/device.h> #include <linux/node.h> #include <linux/gfp.h> +#include <linux/percpu.h> #include "base.h" @@ -275,11 +276,29 @@ bool cpu_is_hotpluggable(unsigned cpu) } EXPORT_SYMBOL_GPL(cpu_is_hotpluggable); +#ifdef CONFIG_GENERIC_CPU_DEVICES +static DEFINE_PER_CPU(struct cpu, cpu_devices); +#endif + +static void __init cpu_dev_register_generic(void) +{ +#ifdef CONFIG_GENERIC_CPU_DEVICES + int i; + + for_each_possible_cpu(i) { + if (register_cpu(&per_cpu(cpu_devices, i), i)) + panic("Failed to register CPU device"); + } +#endif +} + void __init cpu_dev_init(void) { if (subsys_system_register(&cpu_subsys, cpu_root_attr_groups)) panic("Failed to register CPU subsystem"); + cpu_dev_register_generic(); + #if defined(CONFIG_SCHED_MC) || defined(CONFIG_SCHED_SMT) sched_create_sysfs_power_savings_entries(cpu_subsys.dev_root); #endif |