Lines Matching refs:wd_data
98 struct watchdog_core_data *wd_data = wdd->wd_data; in watchdog_next_keepalive() local
106 virt_timeout = ktime_add(wd_data->last_keepalive, in watchdog_next_keepalive()
109 virt_timeout = wd_data->open_deadline; in watchdog_next_keepalive()
128 struct watchdog_core_data *wd_data = wdd->wd_data; in watchdog_update_worker() local
134 hrtimer_start(&wd_data->timer, t, in watchdog_update_worker()
137 hrtimer_cancel(&wd_data->timer); in watchdog_update_worker()
143 struct watchdog_core_data *wd_data = wdd->wd_data; in __watchdog_ping() local
147 earliest_keepalive = ktime_add(wd_data->last_hw_keepalive, in __watchdog_ping()
152 hrtimer_start(&wd_data->timer, in __watchdog_ping()
158 wd_data->last_hw_keepalive = now; in __watchdog_ping()
187 struct watchdog_core_data *wd_data = wdd->wd_data; in watchdog_ping() local
192 set_bit(_WDOG_KEEPALIVE, &wd_data->status); in watchdog_ping()
194 wd_data->last_keepalive = ktime_get(); in watchdog_ping()
198 static bool watchdog_worker_should_ping(struct watchdog_core_data *wd_data) in watchdog_worker_should_ping() argument
200 struct watchdog_device *wdd = wd_data->wdd; in watchdog_worker_should_ping()
208 return watchdog_hw_running(wdd) && !watchdog_past_open_deadline(wd_data); in watchdog_worker_should_ping()
213 struct watchdog_core_data *wd_data; in watchdog_ping_work() local
215 wd_data = container_of(work, struct watchdog_core_data, work); in watchdog_ping_work()
217 mutex_lock(&wd_data->lock); in watchdog_ping_work()
218 if (watchdog_worker_should_ping(wd_data)) in watchdog_ping_work()
219 __watchdog_ping(wd_data->wdd); in watchdog_ping_work()
220 mutex_unlock(&wd_data->lock); in watchdog_ping_work()
225 struct watchdog_core_data *wd_data; in watchdog_timer_expired() local
227 wd_data = container_of(timer, struct watchdog_core_data, timer); in watchdog_timer_expired()
229 kthread_queue_work(watchdog_kworker, &wd_data->work); in watchdog_timer_expired()
246 struct watchdog_core_data *wd_data = wdd->wd_data; in watchdog_start() local
253 set_bit(_WDOG_KEEPALIVE, &wd_data->status); in watchdog_start()
266 wd_data->last_keepalive = started_at; in watchdog_start()
267 wd_data->last_hw_keepalive = started_at; in watchdog_start()
328 struct watchdog_core_data *wd_data = wdd->wd_data; in watchdog_get_status() local
342 if (test_bit(_WDOG_ALLOW_RELEASE, &wd_data->status)) in watchdog_get_status()
345 if (test_and_clear_bit(_WDOG_KEEPALIVE, &wd_data->status)) in watchdog_get_status()
469 struct watchdog_core_data *wd_data = wdd->wd_data; in status_show() local
472 mutex_lock(&wd_data->lock); in status_show()
474 mutex_unlock(&wd_data->lock); in status_show()
493 struct watchdog_core_data *wd_data = wdd->wd_data; in timeleft_show() local
497 mutex_lock(&wd_data->lock); in timeleft_show()
499 mutex_unlock(&wd_data->lock); in timeleft_show()
670 struct watchdog_core_data *wd_data = file->private_data; in watchdog_write() local
683 clear_bit(_WDOG_ALLOW_RELEASE, &wd_data->status); in watchdog_write()
690 set_bit(_WDOG_ALLOW_RELEASE, &wd_data->status); in watchdog_write()
696 mutex_lock(&wd_data->lock); in watchdog_write()
697 wdd = wd_data->wdd; in watchdog_write()
700 mutex_unlock(&wd_data->lock); in watchdog_write()
721 struct watchdog_core_data *wd_data = file->private_data; in watchdog_ioctl() local
728 mutex_lock(&wd_data->lock); in watchdog_ioctl()
730 wdd = wd_data->wdd; in watchdog_ioctl()
817 mutex_unlock(&wd_data->lock); in watchdog_ioctl()
833 struct watchdog_core_data *wd_data; in watchdog_open() local
840 wd_data = old_wd_data; in watchdog_open()
842 wd_data = container_of(inode->i_cdev, struct watchdog_core_data, in watchdog_open()
846 if (test_and_set_bit(_WDOG_DEV_OPEN, &wd_data->status)) in watchdog_open()
849 wdd = wd_data->wdd; in watchdog_open()
865 file->private_data = wd_data; in watchdog_open()
868 get_device(&wd_data->dev); in watchdog_open()
877 wd_data->open_deadline = KTIME_MAX; in watchdog_open()
883 module_put(wd_data->wdd->ops->owner); in watchdog_open()
885 clear_bit(_WDOG_DEV_OPEN, &wd_data->status); in watchdog_open()
891 struct watchdog_core_data *wd_data; in watchdog_core_data_release() local
893 wd_data = container_of(dev, struct watchdog_core_data, dev); in watchdog_core_data_release()
895 kfree(wd_data); in watchdog_core_data_release()
910 struct watchdog_core_data *wd_data = file->private_data; in watchdog_release() local
915 mutex_lock(&wd_data->lock); in watchdog_release()
917 wdd = wd_data->wdd; in watchdog_release()
928 else if (test_and_clear_bit(_WDOG_ALLOW_RELEASE, &wd_data->status) || in watchdog_release()
941 clear_bit(_WDOG_DEV_OPEN, &wd_data->status); in watchdog_release()
945 mutex_unlock(&wd_data->lock); in watchdog_release()
952 module_put(wd_data->cdev.owner); in watchdog_release()
953 put_device(&wd_data->dev); in watchdog_release()
990 struct watchdog_core_data *wd_data; in watchdog_cdev_register() local
993 wd_data = kzalloc(sizeof(struct watchdog_core_data), GFP_KERNEL); in watchdog_cdev_register()
994 if (!wd_data) in watchdog_cdev_register()
996 mutex_init(&wd_data->lock); in watchdog_cdev_register()
998 wd_data->wdd = wdd; in watchdog_cdev_register()
999 wdd->wd_data = wd_data; in watchdog_cdev_register()
1002 kfree(wd_data); in watchdog_cdev_register()
1006 device_initialize(&wd_data->dev); in watchdog_cdev_register()
1007 wd_data->dev.devt = MKDEV(MAJOR(watchdog_devt), wdd->id); in watchdog_cdev_register()
1008 wd_data->dev.class = &watchdog_class; in watchdog_cdev_register()
1009 wd_data->dev.parent = wdd->parent; in watchdog_cdev_register()
1010 wd_data->dev.groups = wdd->groups; in watchdog_cdev_register()
1011 wd_data->dev.release = watchdog_core_data_release; in watchdog_cdev_register()
1012 dev_set_drvdata(&wd_data->dev, wdd); in watchdog_cdev_register()
1013 dev_set_name(&wd_data->dev, "watchdog%d", wdd->id); in watchdog_cdev_register()
1015 kthread_init_work(&wd_data->work, watchdog_ping_work); in watchdog_cdev_register()
1016 hrtimer_init(&wd_data->timer, CLOCK_MONOTONIC, HRTIMER_MODE_REL_HARD); in watchdog_cdev_register()
1017 wd_data->timer.function = watchdog_timer_expired; in watchdog_cdev_register()
1021 old_wd_data = wd_data; in watchdog_cdev_register()
1031 put_device(&wd_data->dev); in watchdog_cdev_register()
1037 cdev_init(&wd_data->cdev, &watchdog_fops); in watchdog_cdev_register()
1040 err = cdev_device_add(&wd_data->cdev, &wd_data->dev); in watchdog_cdev_register()
1047 put_device(&wd_data->dev); in watchdog_cdev_register()
1052 wd_data->cdev.owner = wdd->ops->owner; in watchdog_cdev_register()
1055 wd_data->last_hw_keepalive = ktime_sub(ktime_get(), 1); in watchdog_cdev_register()
1056 watchdog_set_open_deadline(wd_data); in watchdog_cdev_register()
1064 get_device(&wd_data->dev); in watchdog_cdev_register()
1066 hrtimer_start(&wd_data->timer, 0, in watchdog_cdev_register()
1086 struct watchdog_core_data *wd_data = wdd->wd_data; in watchdog_cdev_unregister() local
1088 cdev_device_del(&wd_data->cdev, &wd_data->dev); in watchdog_cdev_unregister()
1101 mutex_lock(&wd_data->lock); in watchdog_cdev_unregister()
1102 wd_data->wdd = NULL; in watchdog_cdev_unregister()
1103 wdd->wd_data = NULL; in watchdog_cdev_unregister()
1104 mutex_unlock(&wd_data->lock); in watchdog_cdev_unregister()
1106 hrtimer_cancel(&wd_data->timer); in watchdog_cdev_unregister()
1107 kthread_cancel_work_sync(&wd_data->work); in watchdog_cdev_unregister()
1109 put_device(&wd_data->dev); in watchdog_cdev_unregister()
1164 struct watchdog_core_data *wd_data; in watchdog_set_last_hw_keepalive() local
1170 wd_data = wdd->wd_data; in watchdog_set_last_hw_keepalive()
1174 wd_data->last_hw_keepalive = ktime_sub(now, ms_to_ktime(last_ping_ms)); in watchdog_set_last_hw_keepalive()
1236 struct watchdog_core_data *wd_data = wdd->wd_data; in watchdog_dev_suspend() local
1239 if (!wdd->wd_data) in watchdog_dev_suspend()
1243 mutex_lock(&wd_data->lock); in watchdog_dev_suspend()
1244 if (watchdog_worker_should_ping(wd_data)) in watchdog_dev_suspend()
1245 ret = __watchdog_ping(wd_data->wdd); in watchdog_dev_suspend()
1246 mutex_unlock(&wd_data->lock); in watchdog_dev_suspend()
1255 hrtimer_cancel(&wd_data->timer); in watchdog_dev_suspend()
1256 kthread_cancel_work_sync(&wd_data->work); in watchdog_dev_suspend()
1263 struct watchdog_core_data *wd_data = wdd->wd_data; in watchdog_dev_resume() local
1266 if (!wdd->wd_data) in watchdog_dev_resume()
1273 mutex_lock(&wd_data->lock); in watchdog_dev_resume()
1274 if (watchdog_worker_should_ping(wd_data)) in watchdog_dev_resume()
1275 ret = __watchdog_ping(wd_data->wdd); in watchdog_dev_resume()
1276 mutex_unlock(&wd_data->lock); in watchdog_dev_resume()