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#ifndef _LINUX_KERNEL_VTIME_H #define _LINUX_KERNEL_VTIME_H #include <linux/context_tracking_state.h> #ifdef CONFIG_VIRT_CPU_ACCOUNTING_NATIVE #include <asm/vtime.h> #endif struct task_struct; /* * vtime_accounting_enabled() definitions/declarations */ #ifdef CONFIG_VIRT_CPU_ACCOUNTING_NATIVE static inline bool vtime_accounting_enabled(void) { return true; } #endif /* CONFIG_VIRT_CPU_ACCOUNTING_NATIVE */ #ifdef CONFIG_VIRT_CPU_ACCOUNTING_GEN static inline bool vtime_accounting_enabled(void) { if (context_tracking_is_enabled()) { if (context_tracking_cpu_is_enabled()) return true; } return false; } #endif /* CONFIG_VIRT_CPU_ACCOUNTING_GEN */ #ifndef CONFIG_VIRT_CPU_ACCOUNTING static inline bool vtime_accounting_enabled(void) { return false; } #endif /* !CONFIG_VIRT_CPU_ACCOUNTING */ /* * Common vtime APIs */ #ifdef CONFIG_VIRT_CPU_ACCOUNTING #ifdef __ARCH_HAS_VTIME_TASK_SWITCH extern void vtime_task_switch(struct task_struct *prev); #else extern void vtime_common_task_switch(struct task_struct *prev); static inline void vtime_task_switch(struct task_struct *prev) { if (vtime_accounting_enabled()) vtime_common_task_switch(prev); } #endif /* __ARCH_HAS_VTIME_TASK_SWITCH */ extern void vtime_account_system(struct task_struct *tsk); extern void vtime_account_idle(struct task_struct *tsk); extern void vtime_account_user(struct task_struct *tsk); #ifdef __ARCH_HAS_VTIME_ACCOUNT extern void vtime_account_irq_enter(struct task_struct *tsk); #else extern void vtime_common_account_irq_enter(struct task_struct *tsk); static inline void vtime_account_irq_enter(struct task_struct *tsk) { if (vtime_accounting_enabled()) vtime_common_account_irq_enter(tsk); } #endif /* __ARCH_HAS_VTIME_ACCOUNT */ #else /* !CONFIG_VIRT_CPU_ACCOUNTING */ static inline void vtime_task_switch(struct task_struct *prev) { } static inline void vtime_account_system(struct task_struct *tsk) { } static inline void vtime_account_user(struct task_struct *tsk) { } static inline void vtime_account_irq_enter(struct task_struct *tsk) { } #endif /* !CONFIG_VIRT_CPU_ACCOUNTING */ #ifdef CONFIG_VIRT_CPU_ACCOUNTING_GEN extern void arch_vtime_task_switch(struct task_struct *tsk); extern void vtime_gen_account_irq_exit(struct task_struct *tsk); static inline void vtime_account_irq_exit(struct task_struct *tsk) { if (vtime_accounting_enabled()) vtime_gen_account_irq_exit(tsk); } extern void vtime_user_enter(struct task_struct *tsk); static inline void vtime_user_exit(struct task_struct *tsk) { vtime_account_user(tsk); } extern void vtime_guest_enter(struct task_struct *tsk); extern void vtime_guest_exit(struct task_struct *tsk); extern void vtime_init_idle(struct task_struct *tsk, int cpu); #else /* !CONFIG_VIRT_CPU_ACCOUNTING_GEN */ static inline void vtime_account_irq_exit(struct task_struct *tsk) { /* On hard|softirq exit we always account to hard|softirq cputime */ vtime_account_system(tsk); } static inline void vtime_user_enter(struct task_struct *tsk) { } static inline void vtime_user_exit(struct task_struct *tsk) { } static inline void vtime_guest_enter(struct task_struct *tsk) { } static inline void vtime_guest_exit(struct task_struct *tsk) { } static inline void vtime_init_idle(struct task_struct *tsk, int cpu) { } #endif #ifdef CONFIG_IRQ_TIME_ACCOUNTING extern void irqtime_account_irq(struct task_struct *tsk); #else static inline void irqtime_account_irq(struct task_struct *tsk) { } #endif static inline void account_irq_enter_time(struct task_struct *tsk) { vtime_account_irq_enter(tsk); irqtime_account_irq(tsk); } static inline void account_irq_exit_time(struct task_struct *tsk) { vtime_account_irq_exit(tsk); irqtime_account_irq(tsk); } #endif /* _LINUX_KERNEL_VTIME_H */