1 #ifndef _LINUX_KERNEL_VTIME_H
2 #define _LINUX_KERNEL_VTIME_H
6 #ifdef CONFIG_VIRT_CPU_ACCOUNTING
7 extern void vtime_task_switch(struct task_struct *prev);
8 extern void vtime_account_system(struct task_struct *tsk);
9 extern void vtime_account_idle(struct task_struct *tsk);
10 extern void vtime_account_user(struct task_struct *tsk);
11 extern void vtime_account_irq_enter(struct task_struct *tsk);
13 #ifdef CONFIG_VIRT_CPU_ACCOUNTING_NATIVE
14 static inline bool vtime_accounting_enabled(void) { return true; }
17 #else /* !CONFIG_VIRT_CPU_ACCOUNTING */
19 static inline void vtime_task_switch(struct task_struct *prev) { }
20 static inline void vtime_account_system(struct task_struct *tsk) { }
21 static inline void vtime_account_user(struct task_struct *tsk) { }
22 static inline void vtime_account_irq_enter(struct task_struct *tsk) { }
23 static inline bool vtime_accounting_enabled(void) { return false; }
26 #ifdef CONFIG_VIRT_CPU_ACCOUNTING_GEN
27 extern void arch_vtime_task_switch(struct task_struct *tsk);
28 extern void vtime_account_irq_exit(struct task_struct *tsk);
29 extern bool vtime_accounting_enabled(void);
30 extern void vtime_user_enter(struct task_struct *tsk);
31 static inline void vtime_user_exit(struct task_struct *tsk)
33 vtime_account_user(tsk);
35 extern void vtime_guest_enter(struct task_struct *tsk);
36 extern void vtime_guest_exit(struct task_struct *tsk);
37 extern void vtime_init_idle(struct task_struct *tsk);
39 static inline void vtime_account_irq_exit(struct task_struct *tsk)
41 /* On hard|softirq exit we always account to hard|softirq cputime */
42 vtime_account_system(tsk);
44 static inline void vtime_user_enter(struct task_struct *tsk) { }
45 static inline void vtime_user_exit(struct task_struct *tsk) { }
46 static inline void vtime_guest_enter(struct task_struct *tsk) { }
47 static inline void vtime_guest_exit(struct task_struct *tsk) { }
48 static inline void vtime_init_idle(struct task_struct *tsk) { }
51 #ifdef CONFIG_IRQ_TIME_ACCOUNTING
52 extern void irqtime_account_irq(struct task_struct *tsk);
54 static inline void irqtime_account_irq(struct task_struct *tsk) { }
57 static inline void account_irq_enter_time(struct task_struct *tsk)
59 vtime_account_irq_enter(tsk);
60 irqtime_account_irq(tsk);
63 static inline void account_irq_exit_time(struct task_struct *tsk)
65 vtime_account_irq_exit(tsk);
66 irqtime_account_irq(tsk);
69 #endif /* _LINUX_KERNEL_VTIME_H */