/* SPDX-License-Identifier: GPL-2.0 */ #ifndef _TICK_SCHED_H #define _TICK_SCHED_H #include <linux/hrtimer.h> enum tick_device_mode { TICKDEV_MODE_PERIODIC, TICKDEV_MODE_ONESHOT, }; struct tick_device { struct clock_event_device *evtdev; enum tick_device_mode mode; }; enum tick_nohz_mode { NOHZ_MODE_INACTIVE, NOHZ_MODE_LOWRES, NOHZ_MODE_HIGHRES, }; /** * struct tick_sched - sched tick emulation and no idle tick control/stats * @sched_timer: hrtimer to schedule the periodic tick in high * resolution mode * @last_tick: Store the last tick expiry time when the tick * timer is modified for nohz sleeps. This is necessary * to resume the tick timer operation in the timeline * when the CPU returns from nohz sleep. * @next_tick: Next tick to be fired when in dynticks mode. * @tick_stopped: Indicator that the idle tick has been stopped * @idle_jiffies: jiffies at the entry to idle for idle time accounting * @idle_calls: Total number of idle calls * @idle_sleeps: Number of idle calls, where the sched tick was stopped * @idle_entrytime: Time when the idle call was entered * @idle_waketime: Time when the idle was interrupted * @idle_exittime: Time when the idle state was left * @idle_sleeptime: Sum of the time slept in idle with sched tick stopped * @iowait_sleeptime: Sum of the time slept in idle with sched tick stopped, with IO outstanding * @timer_expires: Anticipated timer expiration time (in case sched tick is stopped) * @timer_expires_base: Base time clock monotonic for @timer_expires * @do_timer_lst: CPU was the last one doing do_timer before going idle * @got_idle_tick: Tick timer function has run with @inidle set */ struct tick_sched { struct hrtimer sched_timer; unsigned long check_clocks; enum tick_nohz_mode nohz_mode; unsigned int inidle : 1; unsigned int tick_stopped : 1; unsigned int idle_active : 1; unsigned int do_timer_last : 1; unsigned int got_idle_tick : 1; ktime_t last_tick; ktime_t next_tick; unsigned long idle_jiffies; unsigned long idle_calls; unsigned long idle_sleeps; ktime_t idle_entrytime; ktime_t idle_waketime; ktime_t idle_exittime; ktime_t idle_sleeptime; ktime_t iowait_sleeptime; unsigned long last_jiffies; u64 timer_expires; u64 timer_expires_base; u64 next_timer; ktime_t idle_expires; atomic_t tick_dep_mask; }; extern struct tick_sched *tick_get_tick_sched(int cpu); extern void tick_setup_sched_timer(void); #if defined CONFIG_NO_HZ_COMMON || defined CONFIG_HIGH_RES_TIMERS extern void tick_cancel_sched_timer(int cpu); #else
static inline void tick_cancel_sched_timer(int cpu) { }Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Thomas Gleixner | 9 | 100.00% | 1 | 100.00% |
| Total | 9 | 100.00% | 1 | 100.00% |
| Person | Tokens | Prop | Commits | CommitProp |
| Thomas Gleixner | 15 | 100.00% | 1 | 100.00% |
| Total | 15 | 100.00% | 1 | 100.00% |
| Person | Tokens | Prop | Commits | CommitProp |
| Thomas Gleixner | 179 | 81.36% | 4 | 44.44% |
| Frédéric Weisbecker | 34 | 15.45% | 3 | 33.33% |
| Rafael J. Wysocki | 6 | 2.73% | 1 | 11.11% |
| Greg Kroah-Hartman | 1 | 0.45% | 1 | 11.11% |
| Total | 220 | 100.00% | 9 | 100.00% |