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Diffstat (limited to 'include/linux/hrtimer_types.h')
| -rw-r--r-- | include/linux/hrtimer_types.h | 50 |
1 files changed, 50 insertions, 0 deletions
diff --git a/include/linux/hrtimer_types.h b/include/linux/hrtimer_types.h new file mode 100644 index 000000000000..ad66a3081735 --- /dev/null +++ b/include/linux/hrtimer_types.h @@ -0,0 +1,50 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +#ifndef _LINUX_HRTIMER_TYPES_H +#define _LINUX_HRTIMER_TYPES_H + +#include <linux/types.h> +#include <linux/timerqueue_types.h> + +struct hrtimer_clock_base; + +/* + * Return values for the callback function + */ +enum hrtimer_restart { + HRTIMER_NORESTART, /* Timer is not restarted */ + HRTIMER_RESTART, /* Timer must be restarted */ +}; + +/** + * struct hrtimer - the basic hrtimer structure + * @node: timerqueue node, which also manages node.expires, + * the absolute expiry time in the hrtimers internal + * representation. The time is related to the clock on + * which the timer is based. Is setup by adding + * slack to the _softexpires value. For non range timers + * identical to _softexpires. + * @_softexpires: the absolute earliest expiry time of the hrtimer. + * The time which was given as expiry time when the timer + * was armed. + * @function: timer expiry callback function + * @base: pointer to the timer base (per cpu and per clock) + * @state: state information (See bit values above) + * @is_rel: Set if the timer was armed relative + * @is_soft: Set if hrtimer will be expired in soft interrupt context. + * @is_hard: Set if hrtimer will be expired in hard interrupt context + * even on RT. + * + * The hrtimer structure must be initialized by hrtimer_init() + */ +struct hrtimer { + struct timerqueue_node node; + ktime_t _softexpires; + enum hrtimer_restart (*function)(struct hrtimer *); + struct hrtimer_clock_base *base; + u8 state; + u8 is_rel; + u8 is_soft; + u8 is_hard; +}; + +#endif /* _LINUX_HRTIMER_TYPES_H */ |