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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 18:49:45 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 18:49:45 +0000 |
commit | 2c3c1048746a4622d8c89a29670120dc8fab93c4 (patch) | |
tree | 848558de17fb3008cdf4d861b01ac7781903ce39 /include/linux/sched/isolation.h | |
parent | Initial commit. (diff) | |
download | linux-2c3c1048746a4622d8c89a29670120dc8fab93c4.tar.xz linux-2c3c1048746a4622d8c89a29670120dc8fab93c4.zip |
Adding upstream version 6.1.76.upstream/6.1.76upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'include/linux/sched/isolation.h')
-rw-r--r-- | include/linux/sched/isolation.h | 61 |
1 files changed, 61 insertions, 0 deletions
diff --git a/include/linux/sched/isolation.h b/include/linux/sched/isolation.h new file mode 100644 index 000000000..8c15abd67 --- /dev/null +++ b/include/linux/sched/isolation.h @@ -0,0 +1,61 @@ +#ifndef _LINUX_SCHED_ISOLATION_H +#define _LINUX_SCHED_ISOLATION_H + +#include <linux/cpumask.h> +#include <linux/init.h> +#include <linux/tick.h> + +enum hk_type { + HK_TYPE_TIMER, + HK_TYPE_RCU, + HK_TYPE_MISC, + HK_TYPE_SCHED, + HK_TYPE_TICK, + HK_TYPE_DOMAIN, + HK_TYPE_WQ, + HK_TYPE_MANAGED_IRQ, + HK_TYPE_KTHREAD, + HK_TYPE_MAX +}; + +#ifdef CONFIG_CPU_ISOLATION +DECLARE_STATIC_KEY_FALSE(housekeeping_overridden); +extern int housekeeping_any_cpu(enum hk_type type); +extern const struct cpumask *housekeeping_cpumask(enum hk_type type); +extern bool housekeeping_enabled(enum hk_type type); +extern void housekeeping_affine(struct task_struct *t, enum hk_type type); +extern bool housekeeping_test_cpu(int cpu, enum hk_type type); +extern void __init housekeeping_init(void); + +#else + +static inline int housekeeping_any_cpu(enum hk_type type) +{ + return smp_processor_id(); +} + +static inline const struct cpumask *housekeeping_cpumask(enum hk_type type) +{ + return cpu_possible_mask; +} + +static inline bool housekeeping_enabled(enum hk_type type) +{ + return false; +} + +static inline void housekeeping_affine(struct task_struct *t, + enum hk_type type) { } +static inline void housekeeping_init(void) { } +#endif /* CONFIG_CPU_ISOLATION */ + +static inline bool housekeeping_cpu(int cpu, enum hk_type type) +{ +#ifdef CONFIG_CPU_ISOLATION + if (static_branch_unlikely(&housekeeping_overridden)) + return housekeeping_test_cpu(cpu, type); +#endif + return true; +} + +#endif /* _LINUX_SCHED_ISOLATION_H */ |