Root/
1 | #ifndef _LINUX_KERNEL_STAT_H |
2 | #define _LINUX_KERNEL_STAT_H |
3 | |
4 | #include <linux/smp.h> |
5 | #include <linux/threads.h> |
6 | #include <linux/percpu.h> |
7 | #include <linux/cpumask.h> |
8 | #include <linux/interrupt.h> |
9 | #include <asm/irq.h> |
10 | #include <asm/cputime.h> |
11 | |
12 | /* |
13 | * 'kernel_stat.h' contains the definitions needed for doing |
14 | * some kernel statistics (CPU usage, context switches ...), |
15 | * used by rstatd/perfmeter |
16 | */ |
17 | |
18 | struct cpu_usage_stat { |
19 | cputime64_t user; |
20 | cputime64_t nice; |
21 | cputime64_t system; |
22 | cputime64_t softirq; |
23 | cputime64_t irq; |
24 | cputime64_t idle; |
25 | cputime64_t iowait; |
26 | cputime64_t steal; |
27 | cputime64_t guest; |
28 | cputime64_t guest_nice; |
29 | }; |
30 | |
31 | struct kernel_stat { |
32 | struct cpu_usage_stat cpustat; |
33 | #ifndef CONFIG_GENERIC_HARDIRQS |
34 | unsigned int irqs[NR_IRQS]; |
35 | #endif |
36 | unsigned long irqs_sum; |
37 | unsigned int softirqs[NR_SOFTIRQS]; |
38 | }; |
39 | |
40 | DECLARE_PER_CPU(struct kernel_stat, kstat); |
41 | |
42 | #define kstat_cpu(cpu) per_cpu(kstat, cpu) |
43 | /* Must have preemption disabled for this to be meaningful. */ |
44 | #define kstat_this_cpu __get_cpu_var(kstat) |
45 | |
46 | extern unsigned long long nr_context_switches(void); |
47 | |
48 | #ifndef CONFIG_GENERIC_HARDIRQS |
49 | |
50 | struct irq_desc; |
51 | |
52 | static inline void kstat_incr_irqs_this_cpu(unsigned int irq, |
53 | struct irq_desc *desc) |
54 | { |
55 | __this_cpu_inc(kstat.irqs[irq]); |
56 | __this_cpu_inc(kstat.irqs_sum); |
57 | } |
58 | |
59 | static inline unsigned int kstat_irqs_cpu(unsigned int irq, int cpu) |
60 | { |
61 | return kstat_cpu(cpu).irqs[irq]; |
62 | } |
63 | #else |
64 | #include <linux/irq.h> |
65 | extern unsigned int kstat_irqs_cpu(unsigned int irq, int cpu); |
66 | |
67 | #define kstat_incr_irqs_this_cpu(irqno, DESC) \ |
68 | do { \ |
69 | __this_cpu_inc(*(DESC)->kstat_irqs); \ |
70 | __this_cpu_inc(kstat.irqs_sum); \ |
71 | } while (0) |
72 | |
73 | #endif |
74 | |
75 | static inline void kstat_incr_softirqs_this_cpu(unsigned int irq) |
76 | { |
77 | __this_cpu_inc(kstat.softirqs[irq]); |
78 | } |
79 | |
80 | static inline unsigned int kstat_softirqs_cpu(unsigned int irq, int cpu) |
81 | { |
82 | return kstat_cpu(cpu).softirqs[irq]; |
83 | } |
84 | |
85 | /* |
86 | * Number of interrupts per specific IRQ source, since bootup |
87 | */ |
88 | #ifndef CONFIG_GENERIC_HARDIRQS |
89 | static inline unsigned int kstat_irqs(unsigned int irq) |
90 | { |
91 | unsigned int sum = 0; |
92 | int cpu; |
93 | |
94 | for_each_possible_cpu(cpu) |
95 | sum += kstat_irqs_cpu(irq, cpu); |
96 | |
97 | return sum; |
98 | } |
99 | #else |
100 | extern unsigned int kstat_irqs(unsigned int irq); |
101 | #endif |
102 | |
103 | /* |
104 | * Number of interrupts per cpu, since bootup |
105 | */ |
106 | static inline unsigned int kstat_cpu_irqs_sum(unsigned int cpu) |
107 | { |
108 | return kstat_cpu(cpu).irqs_sum; |
109 | } |
110 | |
111 | /* |
112 | * Lock/unlock the current runqueue - to extract task statistics: |
113 | */ |
114 | extern unsigned long long task_delta_exec(struct task_struct *); |
115 | |
116 | extern void account_user_time(struct task_struct *, cputime_t, cputime_t); |
117 | extern void account_system_time(struct task_struct *, int, cputime_t, cputime_t); |
118 | extern void account_steal_time(cputime_t); |
119 | extern void account_idle_time(cputime_t); |
120 | |
121 | extern void account_process_tick(struct task_struct *, int user); |
122 | extern void account_steal_ticks(unsigned long ticks); |
123 | extern void account_idle_ticks(unsigned long ticks); |
124 | |
125 | #endif /* _LINUX_KERNEL_STAT_H */ |
126 |
Branches:
ben-wpan
ben-wpan-stefan
javiroman/ks7010
jz-2.6.34
jz-2.6.34-rc5
jz-2.6.34-rc6
jz-2.6.34-rc7
jz-2.6.35
jz-2.6.36
jz-2.6.37
jz-2.6.38
jz-2.6.39
jz-3.0
jz-3.1
jz-3.11
jz-3.12
jz-3.13
jz-3.15
jz-3.16
jz-3.18-dt
jz-3.2
jz-3.3
jz-3.4
jz-3.5
jz-3.6
jz-3.6-rc2-pwm
jz-3.9
jz-3.9-clk
jz-3.9-rc8
jz47xx
jz47xx-2.6.38
master
Tags:
od-2011-09-04
od-2011-09-18
v2.6.34-rc5
v2.6.34-rc6
v2.6.34-rc7
v3.9