projects / mirror_ubuntu-zesty-kernel.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; | |
| d7e51e66 | 31 | #ifndef CONFIG_GENERIC_HARDIRQS |
| 0b8f1efa YL |
32 | unsigned int irqs[NR_IRQS]; |
| 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 | ||
| d7e51e66 | 44 | #ifndef CONFIG_GENERIC_HARDIRQS |
| 0b8f1efa YL |
45 | #define kstat_irqs_this_cpu(irq) \ |
| 46 | (kstat_this_cpu.irqs[irq]) | |
| 47 | ||
| d6c88a50 | 48 | struct irq_desc; |
| 8c464a4b | 49 | |
| d6c88a50 TG |
50 | static inline void kstat_incr_irqs_this_cpu(unsigned int irq, |
| 51 | struct irq_desc *desc) | |
| 52 | { | |
| 53 | kstat_this_cpu.irqs[irq]++; | |
| 54 | } | |
| 8c464a4b | 55 | |
| 7f95ec9e YL |
56 | static inline unsigned int kstat_irqs_cpu(unsigned int irq, int cpu) |
| 57 | { | |
| 58 | return kstat_cpu(cpu).irqs[irq]; | |
| 59 | } | |
| 0b8f1efa | 60 | #else |
| d52a61c0 | 61 | #include <linux/irq.h> |
| 0b8f1efa | 62 | extern unsigned int kstat_irqs_cpu(unsigned int irq, int cpu); |
| d52a61c0 YL |
63 | #define kstat_irqs_this_cpu(DESC) \ |
| 64 | ((DESC)->kstat_irqs[smp_processor_id()]) | |
| 65 | #define kstat_incr_irqs_this_cpu(irqno, DESC) \ | |
| 66 | ((DESC)->kstat_irqs[smp_processor_id()]++) | |
| 67 | ||
| 0b8f1efa | 68 | #endif |
| 7f95ec9e | 69 | |
| 1da177e4 LT |
70 | /* |
| 71 | * Number of interrupts per specific IRQ source, since bootup | |
| 72 | */ | |
| 7f95ec9e | 73 | static inline unsigned int kstat_irqs(unsigned int irq) |
| 1da177e4 | 74 | { |
| 7f95ec9e YL |
75 | unsigned int sum = 0; |
| 76 | int cpu; | |
| 1da177e4 | 77 | |
| 0a945022 | 78 | for_each_possible_cpu(cpu) |
| 7f95ec9e | 79 | sum += kstat_irqs_cpu(irq, cpu); |
| 1da177e4 LT |
80 | |
| 81 | return sum; | |
| 82 | } | |
| 83 | ||
| aa9c4c0f IM |
84 | |
| 85 | /* | |
| 86 | * Lock/unlock the current runqueue - to extract task statistics: | |
| 87 | */ | |
| bb34d92f | 88 | extern unsigned long long task_delta_exec(struct task_struct *); |
| aa9c4c0f | 89 | |
| 457533a7 MS |
90 | extern void account_user_time(struct task_struct *, cputime_t, cputime_t); |
| 91 | extern void account_system_time(struct task_struct *, int, cputime_t, cputime_t); | |
| 79741dd3 MS |
92 | extern void account_steal_time(cputime_t); |
| 93 | extern void account_idle_time(cputime_t); | |
| 94 | ||
| 95 | extern void account_process_tick(struct task_struct *, int user); | |
| 96 | extern void account_steal_ticks(unsigned long ticks); | |
| 97 | extern void account_idle_ticks(unsigned long ticks); | |
| 1da177e4 LT |
98 | |
| 99 | #endif /* _LINUX_KERNEL_STAT_H */ |