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git.proxmox.com Git - mirror_ubuntu-jammy-kernel.git/blob - include/linux/kernel_stat.h
1 /* SPDX-License-Identifier: GPL-2.0 */
2 #ifndef _LINUX_KERNEL_STAT_H
3 #define _LINUX_KERNEL_STAT_H
6 #include <linux/threads.h>
7 #include <linux/percpu.h>
8 #include <linux/cpumask.h>
9 #include <linux/interrupt.h>
10 #include <linux/sched.h>
11 #include <linux/vtime.h>
15 * 'kernel_stat.h' contains the definitions needed for doing
16 * some kernel statistics (CPU usage, context switches ...),
17 * used by rstatd/perfmeter
34 struct kernel_cpustat
{
35 u64 cpustat
[NR_STATS
];
39 unsigned long irqs_sum
;
40 unsigned int softirqs
[NR_SOFTIRQS
];
43 DECLARE_PER_CPU(struct kernel_stat
, kstat
);
44 DECLARE_PER_CPU(struct kernel_cpustat
, kernel_cpustat
);
46 /* Must have preemption disabled for this to be meaningful. */
47 #define kstat_this_cpu this_cpu_ptr(&kstat)
48 #define kcpustat_this_cpu this_cpu_ptr(&kernel_cpustat)
49 #define kstat_cpu(cpu) per_cpu(kstat, cpu)
50 #define kcpustat_cpu(cpu) per_cpu(kernel_cpustat, cpu)
52 extern unsigned long long nr_context_switches(void);
54 extern unsigned int kstat_irqs_cpu(unsigned int irq
, int cpu
);
55 extern void kstat_incr_irq_this_cpu(unsigned int irq
);
57 static inline void kstat_incr_softirqs_this_cpu(unsigned int irq
)
59 __this_cpu_inc(kstat
.softirqs
[irq
]);
62 static inline unsigned int kstat_softirqs_cpu(unsigned int irq
, int cpu
)
64 return kstat_cpu(cpu
).softirqs
[irq
];
68 * Number of interrupts per specific IRQ source, since bootup
70 extern unsigned int kstat_irqs(unsigned int irq
);
71 extern unsigned int kstat_irqs_usr(unsigned int irq
);
74 * Number of interrupts per cpu, since bootup
76 static inline unsigned int kstat_cpu_irqs_sum(unsigned int cpu
)
78 return kstat_cpu(cpu
).irqs_sum
;
81 extern void account_user_time(struct task_struct
*, u64
);
82 extern void account_guest_time(struct task_struct
*, u64
);
83 extern void account_system_time(struct task_struct
*, int, u64
);
84 extern void account_system_index_time(struct task_struct
*, u64
,
86 extern void account_steal_time(u64
);
87 extern void account_idle_time(u64
);
89 #ifdef CONFIG_VIRT_CPU_ACCOUNTING_NATIVE
90 static inline void account_process_tick(struct task_struct
*tsk
, int user
)
95 extern void account_process_tick(struct task_struct
*, int user
);
98 extern void account_idle_ticks(unsigned long ticks
);
100 #endif /* _LINUX_KERNEL_STAT_H */