11da177e4SLinus Torvalds #ifndef _LINUX_KERNEL_STAT_H 21da177e4SLinus Torvalds #define _LINUX_KERNEL_STAT_H 31da177e4SLinus Torvalds 41da177e4SLinus Torvalds #include <linux/smp.h> 51da177e4SLinus Torvalds #include <linux/threads.h> 61da177e4SLinus Torvalds #include <linux/percpu.h> 728ef3584SIngo Molnar #include <linux/cpumask.h> 86859a840SAlan Mayer #include <asm/irq.h> 91da177e4SLinus Torvalds #include <asm/cputime.h> 101da177e4SLinus Torvalds 111da177e4SLinus Torvalds /* 121da177e4SLinus Torvalds * 'kernel_stat.h' contains the definitions needed for doing 131da177e4SLinus Torvalds * some kernel statistics (CPU usage, context switches ...), 141da177e4SLinus Torvalds * used by rstatd/perfmeter 151da177e4SLinus Torvalds */ 161da177e4SLinus Torvalds 171da177e4SLinus Torvalds struct cpu_usage_stat { 181da177e4SLinus Torvalds cputime64_t user; 191da177e4SLinus Torvalds cputime64_t nice; 201da177e4SLinus Torvalds cputime64_t system; 211da177e4SLinus Torvalds cputime64_t softirq; 221da177e4SLinus Torvalds cputime64_t irq; 231da177e4SLinus Torvalds cputime64_t idle; 241da177e4SLinus Torvalds cputime64_t iowait; 251da177e4SLinus Torvalds cputime64_t steal; 265e84cfdeSLaurent Vivier cputime64_t guest; 271da177e4SLinus Torvalds }; 281da177e4SLinus Torvalds 291da177e4SLinus Torvalds struct kernel_stat { 301da177e4SLinus Torvalds struct cpu_usage_stat cpustat; 31*7f95ec9eSYinghai Lu #ifndef CONFIG_GENERIC_HARDIRQS 321da177e4SLinus Torvalds unsigned int irqs[NR_IRQS]; 33d17a55deSYinghai Lu #endif 341da177e4SLinus Torvalds }; 351da177e4SLinus Torvalds 361da177e4SLinus Torvalds DECLARE_PER_CPU(struct kernel_stat, kstat); 371da177e4SLinus Torvalds 381da177e4SLinus Torvalds #define kstat_cpu(cpu) per_cpu(kstat, cpu) 391da177e4SLinus Torvalds /* Must have preemption disabled for this to be meaningful. */ 401da177e4SLinus Torvalds #define kstat_this_cpu __get_cpu_var(kstat) 411da177e4SLinus Torvalds 421da177e4SLinus Torvalds extern unsigned long long nr_context_switches(void); 431da177e4SLinus Torvalds 44*7f95ec9eSYinghai Lu #ifndef CONFIG_GENERIC_HARDIRQS 45*7f95ec9eSYinghai Lu static inline unsigned int kstat_irqs_cpu(unsigned int irq, int cpu) 46*7f95ec9eSYinghai Lu { 47*7f95ec9eSYinghai Lu return kstat_cpu(cpu).irqs[irq]; 48*7f95ec9eSYinghai Lu } 49*7f95ec9eSYinghai Lu #else 50*7f95ec9eSYinghai Lu extern unsigned int kstat_irqs_cpu(unsigned int irq, int cpu); 51*7f95ec9eSYinghai Lu #endif 52*7f95ec9eSYinghai Lu 531da177e4SLinus Torvalds /* 541da177e4SLinus Torvalds * Number of interrupts per specific IRQ source, since bootup 551da177e4SLinus Torvalds */ 56*7f95ec9eSYinghai Lu static inline unsigned int kstat_irqs(unsigned int irq) 571da177e4SLinus Torvalds { 58*7f95ec9eSYinghai Lu unsigned int sum = 0; 59*7f95ec9eSYinghai Lu int cpu; 601da177e4SLinus Torvalds 610a945022SKAMEZAWA Hiroyuki for_each_possible_cpu(cpu) 62*7f95ec9eSYinghai Lu sum += kstat_irqs_cpu(irq, cpu); 631da177e4SLinus Torvalds 641da177e4SLinus Torvalds return sum; 651da177e4SLinus Torvalds } 661da177e4SLinus Torvalds 671da177e4SLinus Torvalds extern void account_user_time(struct task_struct *, cputime_t); 68c66f08beSMichael Neuling extern void account_user_time_scaled(struct task_struct *, cputime_t); 691da177e4SLinus Torvalds extern void account_system_time(struct task_struct *, int, cputime_t); 70c66f08beSMichael Neuling extern void account_system_time_scaled(struct task_struct *, cputime_t); 711da177e4SLinus Torvalds extern void account_steal_time(struct task_struct *, cputime_t); 721da177e4SLinus Torvalds 731da177e4SLinus Torvalds #endif /* _LINUX_KERNEL_STAT_H */ 74