projects / deliverable / linux.git / blame
| 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> |
| 6859a840 | 8 | #include <asm/irq.h> |
| 1da177e4 LT |
9 | #include <asm/cputime.h> |
| 10 | ||
| 11 | /* | |
| 12 | * 'kernel_stat.h' contains the definitions needed for doing | |
| 13 | * some kernel statistics (CPU usage, context switches ...), | |
| 14 | * used by rstatd/perfmeter | |
| 15 | */ | |
| 16 | ||
| 17 | struct cpu_usage_stat { | |
| 18 | cputime64_t user; | |
| 19 | cputime64_t nice; | |
| 20 | cputime64_t system; | |
| 21 | cputime64_t softirq; | |
| 22 | cputime64_t irq; | |
| 23 | cputime64_t idle; | |
| 24 | cputime64_t iowait; | |
| 25 | cputime64_t steal; | |
| 5e84cfde | 26 | cputime64_t guest; |
| 1da177e4 LT |
27 | }; |
| 28 | ||
| 29 | struct kernel_stat { | |
| 30 | struct cpu_usage_stat cpustat; | |
| 7f95ec9e YL |
31 | #ifndef CONFIG_GENERIC_HARDIRQS |
| 32 | unsigned int irqs[NR_IRQS]; | |
| d17a55de | 33 | #endif |
| 1da177e4 LT |
34 | }; |
| 35 | ||
| 36 | DECLARE_PER_CPU(struct kernel_stat, kstat); | |
| 37 | ||
| 38 | #define kstat_cpu(cpu) per_cpu(kstat, cpu) | |
| 39 | /* Must have preemption disabled for this to be meaningful. */ | |
| 40 | #define kstat_this_cpu __get_cpu_var(kstat) | |
| 41 | ||
| 42 | extern unsigned long long nr_context_switches(void); | |
| 43 | ||
| 7f95ec9e YL |
44 | #ifndef CONFIG_GENERIC_HARDIRQS |
| 45 | static inline unsigned int kstat_irqs_cpu(unsigned int irq, int cpu) | |
| 46 | { | |
| 47 | return kstat_cpu(cpu).irqs[irq]; | |
| 48 | } | |
| 49 | #else | |
| 50 | extern unsigned int kstat_irqs_cpu(unsigned int irq, int cpu); | |
| 51 | #endif | |
| 52 | ||
| 1da177e4 LT |
53 | /* |
| 54 | * Number of interrupts per specific IRQ source, since bootup | |
| 55 | */ | |
| 7f95ec9e | 56 | static inline unsigned int kstat_irqs(unsigned int irq) |
| 1da177e4 | 57 | { |
| 7f95ec9e YL |
58 | unsigned int sum = 0; |
| 59 | int cpu; | |
| 1da177e4 | 60 | |
| 0a945022 | 61 | for_each_possible_cpu(cpu) |
| 7f95ec9e | 62 | sum += kstat_irqs_cpu(irq, cpu); |
| 1da177e4 LT |
63 | |
| 64 | return sum; | |
| 65 | } | |
| 66 | ||
| 67 | extern void account_user_time(struct task_struct *, cputime_t); | |
| c66f08be | 68 | extern void account_user_time_scaled(struct task_struct *, cputime_t); |
| 1da177e4 | 69 | extern void account_system_time(struct task_struct *, int, cputime_t); |
| c66f08be | 70 | extern void account_system_time_scaled(struct task_struct *, cputime_t); |
| 1da177e4 LT |
71 | extern void account_steal_time(struct task_struct *, cputime_t); |
| 72 | ||
| 73 | #endif /* _LINUX_KERNEL_STAT_H */ |