[mirror_ubuntu-bionic-kernel.git] / include / linux / kernel_stat.h

#ifndef _LINUX_KERNEL_STAT_H
#define _LINUX_KERNEL_STAT_H

#include <linux/smp.h>
#include <linux/threads.h>
#include <linux/percpu.h>
#include <linux/cpumask.h>
#include <linux/interrupt.h>
#include <linux/sched.h>
#include <asm/irq.h>
#include <asm/cputime.h>

/*
 * 'kernel_stat.h' contains the definitions needed for doing
 * some kernel statistics (CPU usage, context switches ...),
 * used by rstatd/perfmeter
 */

enum cpu_usage_stat {
	CPUTIME_USER,
	CPUTIME_NICE,
	CPUTIME_SYSTEM,
	CPUTIME_SOFTIRQ,
	CPUTIME_IRQ,
	CPUTIME_IDLE,
	CPUTIME_IOWAIT,
	CPUTIME_STEAL,
	CPUTIME_GUEST,
	CPUTIME_GUEST_NICE,
	NR_STATS,
};

struct kernel_cpustat {
	u64 cpustat[NR_STATS];
};

struct kernel_stat {
#ifndef CONFIG_GENERIC_HARDIRQS
       unsigned int irqs[NR_IRQS];
#endif
	unsigned long irqs_sum;
	unsigned int softirqs[NR_SOFTIRQS];
};

DECLARE_PER_CPU(struct kernel_stat, kstat);
DECLARE_PER_CPU(struct kernel_cpustat, kernel_cpustat);

/* Must have preemption disabled for this to be meaningful. */
#define kstat_this_cpu (&__get_cpu_var(kstat))
#define kcpustat_this_cpu (&__get_cpu_var(kernel_cpustat))
#define kstat_cpu(cpu) per_cpu(kstat, cpu)
#define kcpustat_cpu(cpu) per_cpu(kernel_cpustat, cpu)

extern unsigned long long nr_context_switches(void);

#ifndef CONFIG_GENERIC_HARDIRQS

struct irq_desc;

static inline void kstat_incr_irqs_this_cpu(unsigned int irq,
					    struct irq_desc *desc)
{
	__this_cpu_inc(kstat.irqs[irq]);
	__this_cpu_inc(kstat.irqs_sum);
}

static inline unsigned int kstat_irqs_cpu(unsigned int irq, int cpu)
{
       return kstat_cpu(cpu).irqs[irq];
}
#else
#include <linux/irq.h>
extern unsigned int kstat_irqs_cpu(unsigned int irq, int cpu);

#define kstat_incr_irqs_this_cpu(irqno, DESC)		\
do {							\
	__this_cpu_inc(*(DESC)->kstat_irqs);		\
	__this_cpu_inc(kstat.irqs_sum);			\
} while (0)

#endif

static inline void kstat_incr_softirqs_this_cpu(unsigned int irq)
{
	__this_cpu_inc(kstat.softirqs[irq]);
}

static inline unsigned int kstat_softirqs_cpu(unsigned int irq, int cpu)
{
       return kstat_cpu(cpu).softirqs[irq];
}

/*
 * Number of interrupts per specific IRQ source, since bootup
 */
#ifndef CONFIG_GENERIC_HARDIRQS
static inline unsigned int kstat_irqs(unsigned int irq)
{
	unsigned int sum = 0;
	int cpu;

	for_each_possible_cpu(cpu)
		sum += kstat_irqs_cpu(irq, cpu);

	return sum;
}
#else
extern unsigned int kstat_irqs(unsigned int irq);
#endif

/*
 * Number of interrupts per cpu, since bootup
 */
static inline unsigned int kstat_cpu_irqs_sum(unsigned int cpu)
{
	return kstat_cpu(cpu).irqs_sum;
}

/*
 * Lock/unlock the current runqueue - to extract task statistics:
 */
extern unsigned long long task_delta_exec(struct task_struct *);

extern void account_user_time(struct task_struct *, cputime_t, cputime_t);
extern void account_system_time(struct task_struct *, int, cputime_t, cputime_t);
extern void account_steal_time(cputime_t);
extern void account_idle_time(cputime_t);

extern void account_process_tick(struct task_struct *, int user);
extern void account_steal_ticks(unsigned long ticks);
extern void account_idle_ticks(unsigned long ticks);

#endif /* _LINUX_KERNEL_STAT_H */
Commit	Line	Data
1da177e4 LT	1	#ifndef _LINUX_KERNEL_STAT_H
	2	#define _LINUX_KERNEL_STAT_H
	3
1da177e4 LT	4	#include <linux/smp.h>
	5	#include <linux/threads.h>
	6	#include <linux/percpu.h>
28ef3584	7	#include <linux/cpumask.h>
aa0ce5bb	8	#include <linux/interrupt.h>
3292beb3	9	#include <linux/sched.h>
6859a840	10	#include <asm/irq.h>
1da177e4 LT	11	#include <asm/cputime.h>
	12
	13	/*
	14	* 'kernel_stat.h' contains the definitions needed for doing
	15	* some kernel statistics (CPU usage, context switches ...),
	16	* used by rstatd/perfmeter
	17	*/
	18
3292beb3 GC	19	enum cpu_usage_stat {
	20	CPUTIME_USER,
	21	CPUTIME_NICE,
	22	CPUTIME_SYSTEM,
	23	CPUTIME_SOFTIRQ,
	24	CPUTIME_IRQ,
	25	CPUTIME_IDLE,
	26	CPUTIME_IOWAIT,
	27	CPUTIME_STEAL,
	28	CPUTIME_GUEST,
	29	CPUTIME_GUEST_NICE,
	30	NR_STATS,
	31	};
	32
	33	struct kernel_cpustat {
	34	u64 cpustat[NR_STATS];
1da177e4 LT	35	};
	36
	37	struct kernel_stat {
d7e51e66	38	#ifndef CONFIG_GENERIC_HARDIRQS
0b8f1efa YL	39	unsigned int irqs[NR_IRQS];
0b8f1efa YL	40	#endif
f2c66cd8	41	unsigned long irqs_sum;
aa0ce5bb	42	unsigned int softirqs[NR_SOFTIRQS];
1da177e4 LT	43	};
	44
	45	DECLARE_PER_CPU(struct kernel_stat, kstat);
3292beb3	46	DECLARE_PER_CPU(struct kernel_cpustat, kernel_cpustat);
1da177e4	47
1da177e4	48	/* Must have preemption disabled for this to be meaningful. */
3292beb3 GC	49	#define kstat_this_cpu (&__get_cpu_var(kstat))
	50	#define kcpustat_this_cpu (&__get_cpu_var(kernel_cpustat))
	51	#define kstat_cpu(cpu) per_cpu(kstat, cpu)
	52	#define kcpustat_cpu(cpu) per_cpu(kernel_cpustat, cpu)
1da177e4 LT	53
	54	extern unsigned long long nr_context_switches(void);
	55
d7e51e66	56	#ifndef CONFIG_GENERIC_HARDIRQS
0b8f1efa	57
d6c88a50	58	struct irq_desc;
8c464a4b	59
d6c88a50 TG	60	static inline void kstat_incr_irqs_this_cpu(unsigned int irq,
	61	struct irq_desc *desc)
	62	{
6c9ae009 ED	63	__this_cpu_inc(kstat.irqs[irq]);
6c9ae009 ED	64	__this_cpu_inc(kstat.irqs_sum);
d6c88a50	65	}
8c464a4b	66
7f95ec9e YL	67	static inline unsigned int kstat_irqs_cpu(unsigned int irq, int cpu)
	68	{
	69	return kstat_cpu(cpu).irqs[irq];
	70	}
0b8f1efa	71	#else
d52a61c0	72	#include <linux/irq.h>
0b8f1efa	73	extern unsigned int kstat_irqs_cpu(unsigned int irq, int cpu);
6c9ae009 ED	74
	75	#define kstat_incr_irqs_this_cpu(irqno, DESC) \
	76	do { \
	77	__this_cpu_inc(*(DESC)->kstat_irqs); \
	78	__this_cpu_inc(kstat.irqs_sum); \
	79	} while (0)
d52a61c0	80
0b8f1efa	81	#endif
7f95ec9e	82
aa0ce5bb KK	83	static inline void kstat_incr_softirqs_this_cpu(unsigned int irq)
aa0ce5bb KK	84	{
6c9ae009	85	__this_cpu_inc(kstat.softirqs[irq]);
aa0ce5bb KK	86	}
	87
	88	static inline unsigned int kstat_softirqs_cpu(unsigned int irq, int cpu)
	89	{
	90	return kstat_cpu(cpu).softirqs[irq];
	91	}
	92
1da177e4 LT	93	/*
	94	* Number of interrupts per specific IRQ source, since bootup
	95	*/
478735e3	96	#ifndef CONFIG_GENERIC_HARDIRQS
7f95ec9e	97	static inline unsigned int kstat_irqs(unsigned int irq)
1da177e4	98	{
7f95ec9e YL	99	unsigned int sum = 0;
7f95ec9e YL	100	int cpu;
1da177e4	101
0a945022	102	for_each_possible_cpu(cpu)
7f95ec9e	103	sum += kstat_irqs_cpu(irq, cpu);
1da177e4 LT	104
	105	return sum;
	106	}
478735e3 KH	107	#else
	108	extern unsigned int kstat_irqs(unsigned int irq);
	109	#endif
1da177e4	110
f2c66cd8 KH	111	/*
	112	* Number of interrupts per cpu, since bootup
	113	*/
	114	static inline unsigned int kstat_cpu_irqs_sum(unsigned int cpu)
	115	{
	116	return kstat_cpu(cpu).irqs_sum;
	117	}
aa9c4c0f IM	118
	119	/*
	120	* Lock/unlock the current runqueue - to extract task statistics:
	121	*/
bb34d92f	122	extern unsigned long long task_delta_exec(struct task_struct *);
aa9c4c0f	123
457533a7 MS	124	extern void account_user_time(struct task_struct *, cputime_t, cputime_t);
457533a7 MS	125	extern void account_system_time(struct task_struct *, int, cputime_t, cputime_t);
79741dd3 MS	126	extern void account_steal_time(cputime_t);
	127	extern void account_idle_time(cputime_t);
	128
	129	extern void account_process_tick(struct task_struct *, int user);
	130	extern void account_steal_ticks(unsigned long ticks);
	131	extern void account_idle_ticks(unsigned long ticks);
1da177e4 LT	132
1da177e4 LT	133	#endif /* _LINUX_KERNEL_STAT_H */