Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | #ifndef _LINUX_KERNEL_STAT_H |
| 2 | #define _LINUX_KERNEL_STAT_H |
| 3 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4 | #include <linux/smp.h> |
| 5 | #include <linux/threads.h> |
| 6 | #include <linux/percpu.h> |
Ingo Molnar | 28ef358 | 2005-11-07 00:59:29 -0800 | [diff] [blame] | 7 | #include <linux/cpumask.h> |
Alan Mayer | 6859a84 | 2008-03-26 16:11:31 -0500 | [diff] [blame] | 8 | #include <asm/irq.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 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; |
Laurent Vivier | 5e84cfd | 2007-10-15 17:00:19 +0200 | [diff] [blame] | 26 | cputime64_t guest; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 27 | }; |
| 28 | |
| 29 | struct kernel_stat { |
| 30 | struct cpu_usage_stat cpustat; |
Yinghai Lu | d17a55d | 2008-08-19 20:50:01 -0700 | [diff] [blame] | 31 | #ifdef CONFIG_HAVE_DYN_ARRAY |
| 32 | unsigned int *irqs; |
| 33 | #else |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 34 | unsigned int irqs[NR_IRQS]; |
Yinghai Lu | d17a55d | 2008-08-19 20:50:01 -0700 | [diff] [blame] | 35 | #endif |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 36 | }; |
| 37 | |
| 38 | DECLARE_PER_CPU(struct kernel_stat, kstat); |
| 39 | |
| 40 | #define kstat_cpu(cpu) per_cpu(kstat, cpu) |
| 41 | /* Must have preemption disabled for this to be meaningful. */ |
| 42 | #define kstat_this_cpu __get_cpu_var(kstat) |
| 43 | |
| 44 | extern unsigned long long nr_context_switches(void); |
| 45 | |
| 46 | /* |
| 47 | * Number of interrupts per specific IRQ source, since bootup |
| 48 | */ |
| 49 | static inline int kstat_irqs(int irq) |
| 50 | { |
Ingo Molnar | 28ef358 | 2005-11-07 00:59:29 -0800 | [diff] [blame] | 51 | int cpu, sum = 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 52 | |
KAMEZAWA Hiroyuki | 0a94502 | 2006-03-28 01:56:37 -0800 | [diff] [blame] | 53 | for_each_possible_cpu(cpu) |
Ingo Molnar | 28ef358 | 2005-11-07 00:59:29 -0800 | [diff] [blame] | 54 | sum += kstat_cpu(cpu).irqs[irq]; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 55 | |
| 56 | return sum; |
| 57 | } |
| 58 | |
| 59 | extern void account_user_time(struct task_struct *, cputime_t); |
Michael Neuling | c66f08b | 2007-10-18 03:06:34 -0700 | [diff] [blame] | 60 | extern void account_user_time_scaled(struct task_struct *, cputime_t); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 61 | extern void account_system_time(struct task_struct *, int, cputime_t); |
Michael Neuling | c66f08b | 2007-10-18 03:06:34 -0700 | [diff] [blame] | 62 | extern void account_system_time_scaled(struct task_struct *, cputime_t); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 63 | extern void account_steal_time(struct task_struct *, cputime_t); |
| 64 | |
| 65 | #endif /* _LINUX_KERNEL_STAT_H */ |