MAJOR=13
MINOR=67
DEVNAME=input/event3
     €ВКѓu—ЭБАЗ е    /* SPDX-License-Identifier: GPL-2.0 */
/*
 * include/linux/cpu.h - generic cpu definition
 *
 * This is mainly for topological representation. We define the 
 * basic 'struct cpu' here, which can be embedded in per-arch 
 * definitions of processors.
 *
 * Basic handling of the devices is done in drivers/base/cpu.c
 *
 * CPUs are exported via sysfs in the devices/system/cpu
 * directory. 
 */
#ifndef _LINUX_CPU_H_
#define _LINUX_CPU_H_

#include <linux/node.h>
#include <linux/compiler.h>
#include <linux/cpuhotplug.h>
#include <linux/cpuhplock.h>
#include <linux/cpu_smt.h>

struct device;
struct device_node;
struct attribute_group;

struct cpu {
	int node_id;		/* The node which contains the CPU */
	int hotpluggable;	/* creates sysfs control file if hotpluggable */
	struct device dev;
};

extern void boot_cpu_init(void);
extern void boot_cpu_hotplug_init(void);
extern void cpu_init(void);
extern void trap_init(void);

extern int register_cpu(struct cpu *cpu, int num);
extern struct device *get_cpu_device(unsigned cpu);
extern bool cpu_is_hotpluggable(unsigned cpu);
extern bool arch_match_cpu_phys_id(int cpu, u64 phys_id);
extern bool arch_find_n_match_cpu_physical_id(struct device_node *cpun,
					      int cpu, unsigned int *thread);

extern int cpu_add_dev_attr(struct device_attribute *attr);
extern void cpu_remove_dev_attr(struct device_attribute *attr);

extern int cpu_add_dev_attr_group(struct attribute_group *attrs);
extern void cpu_remove_dev_attr_group(struct attribute_group *attrs);

extern ssize_t cpu_show_meltdown(struct device *dev,
				 struct device_attribute *attr, char *buf);
extern ssize_t cpu_show_spectre_v1(struct device *dev,
				   struct device_attribute *attr, char *buf);
extern ssize_t cpu_show_spectre_v2(struct device *dev,
				   struct device_attribute *attr, char *buf);
extern ssize_t cpu_show_spec_store_bypass(struct device *dev,
					  struct device_attribute *attr, char *buf);
extern ssize_t cpu_show_l1tf(struct device *dev,
			     struct device_attribute *attr, char *buf);
extern ssize_t cpu_show_mds(struct device *dev,
			    struct device_attribute *attr, char *buf);
extern ssize_t cpu_show_tsx_async_abort(struct device *dev,
					struct device_attribute *attr,
					char *buf);
extern ssize_t cpu_show_itlb_multihit(struct device *dev,
				      struct device_attribute *attr, char *buf);
extern ssize_t cpu_show_srbds(struct device *dev, struct device_attribute *attr, char *buf);
extern ssize_t cpu_show_mmio_stale_data(struct device *dev,
					struct device_attribute *attr,
					char *buf);
extern ssize_t cpu_show_retbleed(struct device *dev,
				 struct device_attribute *attr, char *buf);
extern ssize_t cpu_show_spec_rstack_overflow(struct device *dev,
					     struct device_attribute *attr, char *buf);
extern ssize_t cpu_show_gds(struct device *dev,
			    struct device_attribute *attr, char *buf);
extern ssize_t cpu_show_reg_file_data_sampling(struct device *dev,
					       struct device_attribute *attr, char *buf);
extern ssize_t cpu_show_old_microcode(struct device *dev,
				      struct device_attribute *attr, char *buf);
extern ssize_t cpu_show_indirect_target_selection(struct device *dev,
						  struct device_attribute *attr, char *buf);
extern ssize_t cpu_show_tsa(struct device *dev, struct device_attribute *attr, char *buf);
extern ssize_t cpu_show_vmscape(struct device *dev, struct device_attribute *attr, char *buf);

extern __printf(4, 5)
struct device *cpu_device_create(struct device *parent, void *drvdata,
				 const struct attribute_group **groups,
				 const char *fmt, ...);
extern bool arch_cpu_is_hotpluggable(int cpu);
extern int arch_register_cpu(int cpu);
extern void arch_unregister_cpu(int cpu);
#ifdef CONFIG_HOTPLUG_CPU
extern void unregister_cpu(struct cpu *cpu);
extern ssize_t arch_cpu_probe(const char *, size_t);
extern ssize_t arch_cpu_release(const char *, size_t);
#endif

#ifdef CONFIG_GENERIC_CPU_DEVICES
DECLARE_PER_CPU(struct cpu, cpu_devices);
#endif

/*
 * These states are not related to