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/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _LINUX_PROFILE_H
#define _LINUX_PROFILE_H
#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/cache.h>
#include <asm/errno.h>
#define CPU_PROFILING 1
#define SCHED_PROFILING 2
#define KVM_PROFILING 4
struct proc_dir_entry;
struct notifier_block;
#if defined(CONFIG_PROFILING) && defined(CONFIG_PROC_FS)
int create_proc_profile(void);
#else
static inline int create_proc_profile(void)
{
return 0;
}
#endif
#ifdef CONFIG_PROFILING
extern int prof_on __read_mostly;
/* init basic kernel profiler */
int profile_init(void);
int profile_setup(char *str);
void profile_tick(int type);
int setup_profiling_timer(unsigned int multiplier);
/*
* Add multiple profiler hits to a given address:
*/
void profile_hits(int type, void *ip, unsigned int nr_hits);
/*
* Single profiler hit:
*/
static inline void profile_hit(int type, void *ip)
{
/*
* Speedup for the common (no profiling enabled) case:
*/
if (unlikely(prof_on == type))
profile_hits(type, ip, 1);
}
struct task_struct;
struct mm_struct;
#else
#define prof_on 0
static inline int profile_init(void)
{
return 0;
}
static inline void profile_tick(int type)
{
return;
}
static inline void profile_hits(int type, void *ip, unsigned int nr_hits)
{
return;
}
static inline void profile_hit(int type, void *ip)
{
return;
}
#endif /* CONFIG_PROFILING */
#endif /* _LINUX_PROFILE_H */
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