52 lines
1.3 KiB
C
52 lines
1.3 KiB
C
#ifndef _LINUX_SCHED_ISOLATION_H
|
|
#define _LINUX_SCHED_ISOLATION_H
|
|
|
|
#include <linux/cpumask.h>
|
|
#include <linux/init.h>
|
|
#include <linux/tick.h>
|
|
|
|
enum hk_flags {
|
|
HK_FLAG_TIMER = 1,
|
|
HK_FLAG_RCU = (1 << 1),
|
|
HK_FLAG_MISC = (1 << 2),
|
|
HK_FLAG_SCHED = (1 << 3),
|
|
HK_FLAG_TICK = (1 << 4),
|
|
HK_FLAG_DOMAIN = (1 << 5),
|
|
};
|
|
|
|
#ifdef CONFIG_CPU_ISOLATION
|
|
DECLARE_STATIC_KEY_FALSE(housekeeping_overriden);
|
|
extern int housekeeping_any_cpu(enum hk_flags flags);
|
|
extern const struct cpumask *housekeeping_cpumask(enum hk_flags flags);
|
|
extern void housekeeping_affine(struct task_struct *t, enum hk_flags flags);
|
|
extern bool housekeeping_test_cpu(int cpu, enum hk_flags flags);
|
|
extern void __init housekeeping_init(void);
|
|
|
|
#else
|
|
|
|
static inline int housekeeping_any_cpu(enum hk_flags flags)
|
|
{
|
|
return smp_processor_id();
|
|
}
|
|
|
|
static inline const struct cpumask *housekeeping_cpumask(enum hk_flags flags)
|
|
{
|
|
return cpu_possible_mask;
|
|
}
|
|
|
|
static inline void housekeeping_affine(struct task_struct *t,
|
|
enum hk_flags flags) { }
|
|
static inline void housekeeping_init(void) { }
|
|
#endif /* CONFIG_CPU_ISOLATION */
|
|
|
|
static inline bool housekeeping_cpu(int cpu, enum hk_flags flags)
|
|
{
|
|
#ifdef CONFIG_CPU_ISOLATION
|
|
if (static_branch_unlikely(&housekeeping_overriden))
|
|
return housekeeping_test_cpu(cpu, flags);
|
|
#endif
|
|
return true;
|
|
}
|
|
|
|
#endif /* _LINUX_SCHED_ISOLATION_H */
|