2005-04-16 16:20:36 -06:00
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#ifndef _LINUX_KERNEL_STAT_H
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#define _LINUX_KERNEL_STAT_H
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#include <linux/smp.h>
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#include <linux/threads.h>
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#include <linux/percpu.h>
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2005-11-07 01:59:29 -07:00
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#include <linux/cpumask.h>
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2009-06-17 17:25:52 -06:00
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#include <linux/interrupt.h>
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2008-03-26 15:11:31 -06:00
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#include <asm/irq.h>
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2005-04-16 16:20:36 -06:00
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#include <asm/cputime.h>
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/*
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* 'kernel_stat.h' contains the definitions needed for doing
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* some kernel statistics (CPU usage, context switches ...),
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* used by rstatd/perfmeter
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*/
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struct cpu_usage_stat {
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cputime64_t user;
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cputime64_t nice;
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cputime64_t system;
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cputime64_t softirq;
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cputime64_t irq;
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cputime64_t idle;
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cputime64_t iowait;
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cputime64_t steal;
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cputime64_t guest;
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2009-10-23 10:20:10 -06:00
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cputime64_t guest_nice;
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2005-04-16 16:20:36 -06:00
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};
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struct kernel_stat {
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struct cpu_usage_stat cpustat;
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2009-01-07 16:03:13 -07:00
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#ifndef CONFIG_GENERIC_HARDIRQS
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2008-12-05 19:58:31 -07:00
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unsigned int irqs[NR_IRQS];
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#endif
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unsigned long irqs_sum;
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unsigned int softirqs[NR_SOFTIRQS];
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};
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DECLARE_PER_CPU(struct kernel_stat, kstat);
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#define kstat_cpu(cpu) per_cpu(kstat, cpu)
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/* Must have preemption disabled for this to be meaningful. */
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#define kstat_this_cpu __get_cpu_var(kstat)
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extern unsigned long long nr_context_switches(void);
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2009-01-07 16:03:13 -07:00
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#ifndef CONFIG_GENERIC_HARDIRQS
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2008-12-05 19:58:31 -07:00
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#define kstat_irqs_this_cpu(irq) \
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2010-12-08 08:22:55 -07:00
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(this_cpu_read(kstat.irqs[irq])
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2008-10-15 07:27:23 -06:00
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struct irq_desc;
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static inline void kstat_incr_irqs_this_cpu(unsigned int irq,
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struct irq_desc *desc)
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{
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kstat_this_cpu.irqs[irq]++;
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kstat_this_cpu.irqs_sum++;
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}
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2008-08-19 21:50:09 -06:00
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static inline unsigned int kstat_irqs_cpu(unsigned int irq, int cpu)
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{
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return kstat_cpu(cpu).irqs[irq];
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}
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#else
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2009-01-22 01:38:56 -07:00
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#include <linux/irq.h>
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extern unsigned int kstat_irqs_cpu(unsigned int irq, int cpu);
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#define kstat_irqs_this_cpu(DESC) \
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((DESC)->kstat_irqs[smp_processor_id()])
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#define kstat_incr_irqs_this_cpu(irqno, DESC) do {\
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((DESC)->kstat_irqs[smp_processor_id()]++);\
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kstat_this_cpu.irqs_sum++; } while (0)
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2008-12-05 19:58:31 -07:00
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#endif
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2008-08-19 21:50:09 -06:00
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2009-06-17 17:25:52 -06:00
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static inline void kstat_incr_softirqs_this_cpu(unsigned int irq)
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{
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kstat_this_cpu.softirqs[irq]++;
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}
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static inline unsigned int kstat_softirqs_cpu(unsigned int irq, int cpu)
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{
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return kstat_cpu(cpu).softirqs[irq];
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}
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2005-04-16 16:20:36 -06:00
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/*
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* Number of interrupts per specific IRQ source, since bootup
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*/
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2010-10-27 16:34:15 -06:00
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#ifndef CONFIG_GENERIC_HARDIRQS
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static inline unsigned int kstat_irqs(unsigned int irq)
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{
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unsigned int sum = 0;
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int cpu;
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2005-04-16 16:20:36 -06:00
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2006-03-28 02:56:37 -07:00
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for_each_possible_cpu(cpu)
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sum += kstat_irqs_cpu(irq, cpu);
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2005-04-16 16:20:36 -06:00
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return sum;
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}
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2010-10-27 16:34:15 -06:00
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#else
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extern unsigned int kstat_irqs(unsigned int irq);
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#endif
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2005-04-16 16:20:36 -06:00
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2010-10-27 16:34:13 -06:00
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/*
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* Number of interrupts per cpu, since bootup
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*/
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static inline unsigned int kstat_cpu_irqs_sum(unsigned int cpu)
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{
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return kstat_cpu(cpu).irqs_sum;
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}
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2008-12-17 06:10:57 -07:00
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/*
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* Lock/unlock the current runqueue - to extract task statistics:
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*/
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2008-09-12 10:54:39 -06:00
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extern unsigned long long task_delta_exec(struct task_struct *);
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2008-12-17 06:10:57 -07:00
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2008-12-31 07:11:37 -07:00
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extern void account_user_time(struct task_struct *, cputime_t, cputime_t);
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extern void account_system_time(struct task_struct *, int, cputime_t, cputime_t);
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2008-12-31 07:11:38 -07:00
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extern void account_steal_time(cputime_t);
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extern void account_idle_time(cputime_t);
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extern void account_process_tick(struct task_struct *, int user);
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extern void account_steal_ticks(unsigned long ticks);
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extern void account_idle_ticks(unsigned long ticks);
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2005-04-16 16:20:36 -06:00
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#endif /* _LINUX_KERNEL_STAT_H */
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