diff options
| -rw-r--r-- | arch/frv/Kconfig | 1 | ||||
| -rw-r--r-- | arch/h8300/Kconfig | 1 | ||||
| -rw-r--r-- | arch/m68k/Kconfig | 1 | ||||
| -rw-r--r-- | arch/microblaze/Kconfig | 1 | ||||
| -rw-r--r-- | arch/openrisc/Kconfig | 1 | ||||
| -rw-r--r-- | arch/score/Kconfig | 1 | ||||
| -rw-r--r-- | arch/um/Kconfig.common | 1 | ||||
| -rw-r--r-- | arch/xtensa/Kconfig | 1 | ||||
| -rw-r--r-- | drivers/base/Kconfig | 4 | ||||
| -rw-r--r-- | drivers/base/cpu.c | 19 |
10 files changed, 31 insertions, 0 deletions
diff --git a/arch/frv/Kconfig b/arch/frv/Kconfig index bbbf7927f23..a685910d2d5 100644 --- a/arch/frv/Kconfig +++ b/arch/frv/Kconfig @@ -8,6 +8,7 @@ config FRV select HAVE_GENERIC_HARDIRQS select GENERIC_IRQ_SHOW select ARCH_HAVE_NMI_SAFE_CMPXCHG + select GENERIC_CPU_DEVICES config ZONE_DMA bool diff --git a/arch/h8300/Kconfig b/arch/h8300/Kconfig index d1f377f5d3b..56e890df505 100644 --- a/arch/h8300/Kconfig +++ b/arch/h8300/Kconfig @@ -4,6 +4,7 @@ config H8300 select HAVE_IDE select HAVE_GENERIC_HARDIRQS select GENERIC_IRQ_SHOW + select GENERIC_CPU_DEVICES config SYMBOL_PREFIX string diff --git a/arch/m68k/Kconfig b/arch/m68k/Kconfig index 99c363617f2..ae413d4a8bb 100644 --- a/arch/m68k/Kconfig +++ b/arch/m68k/Kconfig @@ -6,6 +6,7 @@ config M68K select HAVE_GENERIC_HARDIRQS select GENERIC_IRQ_SHOW select ARCH_HAVE_NMI_SAFE_CMPXCHG if RMW_INSNS + select GENERIC_CPU_DEVICES config RWSEM_GENERIC_SPINLOCK bool diff --git a/arch/microblaze/Kconfig b/arch/microblaze/Kconfig index f0eead74fff..74f23a460ba 100644 --- a/arch/microblaze/Kconfig +++ b/arch/microblaze/Kconfig @@ -18,6 +18,7 @@ config MICROBLAZE select GENERIC_IRQ_PROBE select GENERIC_IRQ_SHOW select GENERIC_PCI_IOMAP + select GENERIC_CPU_DEVICES config SWAP def_bool n diff --git a/arch/openrisc/Kconfig b/arch/openrisc/Kconfig index 081a54f1a93..bc428b5f126 100644 --- a/arch/openrisc/Kconfig +++ b/arch/openrisc/Kconfig @@ -15,6 +15,7 @@ config OPENRISC select GENERIC_IRQ_PROBE select GENERIC_IRQ_SHOW select GENERIC_IOMAP + select GENERIC_CPU_DEVICES config MMU def_bool y diff --git a/arch/score/Kconfig b/arch/score/Kconfig index 3df65d39abc..4b285779ac0 100644 --- a/arch/score/Kconfig +++ b/arch/score/Kconfig @@ -8,6 +8,7 @@ config SCORE select HAVE_MEMBLOCK select HAVE_MEMBLOCK_NODE_MAP select ARCH_DISCARD_MEMBLOCK + select GENERIC_CPU_DEVICES choice prompt "System type" diff --git a/arch/um/Kconfig.common b/arch/um/Kconfig.common index a9234838e8a..b37ae706af3 100644 --- a/arch/um/Kconfig.common +++ b/arch/um/Kconfig.common @@ -8,6 +8,7 @@ config UML default y select HAVE_GENERIC_HARDIRQS select GENERIC_IRQ_SHOW + select GENERIC_CPU_DEVICES config MMU bool diff --git a/arch/xtensa/Kconfig b/arch/xtensa/Kconfig index c346ccdce0d..8a3f8351f43 100644 --- a/arch/xtensa/Kconfig +++ b/arch/xtensa/Kconfig @@ -9,6 +9,7 @@ config XTENSA select HAVE_IDE select HAVE_GENERIC_HARDIRQS select GENERIC_IRQ_SHOW + select GENERIC_CPU_DEVICES help Xtensa processors are 32-bit RISC machines designed by Tensilica primarily for embedded systems. These processors are both 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 |