Linux Kernel设备驱动模型之CPU相关初始化

来源：互联网发布：block matching算法编辑：程序博客网时间：2024/04/30 08:35

 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();}

struct bus_type cpu_subsys = { .name = "cpu", .dev_name = "cpu", .match = cpu_subsys_match,#ifdef CONFIG_HOTPLUG_CPU .online = cpu_subsys_online, .offline = cpu_subsys_offline,#endif};EXPORT_SYMBOL_GPL(cpu_subsys);

static struct attribute *cpu_root_attrs[] = {#ifdef CONFIG_ARCH_CPU_PROBE_RELEASE &dev_attr_probe.attr, &dev_attr_release.attr,#endif &cpu_attrs[0].attr.attr, &cpu_attrs[1].attr.attr, &cpu_attrs[2].attr.attr, &dev_attr_kernel_max.attr, &dev_attr_offline.attr, &dev_attr_isolated.attr,#ifdef CONFIG_NO_HZ_FULL &dev_attr_nohz_full.attr,#endif#ifdef CONFIG_GENERIC_CPU_AUTOPROBE &dev_attr_modalias.attr,#endif NULL};
static struct attribute_group cpu_root_attr_group = { .attrs = cpu_root_attrs,};
static const struct attribute_group *cpu_root_attr_groups[] = { &cpu_root_attr_group, NULL,};

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