sun4v/io/ntwdt.c

141 static void ntwdt_arm_watchdog(ntwdt_runstate_t *ntwdt_state);
474 	ntwdt_runstate_t *ntwdt_state;
483 	ntwdt_state = ntwdt_ptr->ntwdt_run_state;
487 		mutex_enter(&ntwdt_state->ntwdt_runstate_mutex);
488 		lom_dogstate.reset_enable = ntwdt_state->ntwdt_reset_enabled;
489 		lom_dogstate.dog_enable = ntwdt_state->ntwdt_watchdog_enabled;
490 		lom_dogstate.dog_timeout = ntwdt_state->ntwdt_watchdog_timeout;
491 		mutex_exit(&ntwdt_state->ntwdt_runstate_mutex);
509 		    ntwdt_state->ntwdt_watchdog_timeout));
522 		mutex_enter(&ntwdt_state->ntwdt_runstate_mutex);
524 		if (ntwdt_state->ntwdt_watchdog_timeout == 0) {
531 			    ntwdt_state->ntwdt_watchdog_timeout));
539 		ntwdt_state->ntwdt_reset_enabled = lom_dogctl.reset_enable;
540 		ntwdt_state->ntwdt_watchdog_enabled = lom_dogctl.dog_enable;
542 		if (ntwdt_state->ntwdt_watchdog_enabled != 0) {
547 			ntwdt_arm_watchdog(ntwdt_state);
549 			if (ntwdt_state->ntwdt_timer_running == 0) {
558 			if (ntwdt_state->ntwdt_timer_running != 0) {
564 		mutex_exit(&ntwdt_state->ntwdt_runstate_mutex);
588 		mutex_enter(&ntwdt_state->ntwdt_runstate_mutex);
590 		ntwdt_state->ntwdt_watchdog_timeout = lom_dogtime;
596 		if (ntwdt_state->ntwdt_timer_running != 0) {
597 			ntwdt_arm_watchdog(ntwdt_state);
599 		mutex_exit(&ntwdt_state->ntwdt_runstate_mutex);
607 		mutex_enter(&ntwdt_state->ntwdt_runstate_mutex);
613 		if (!(ntwdt_state->ntwdt_watchdog_enabled &&
614 		    ntwdt_state->ntwdt_timer_running)) {
619 		if (ntwdt_state->ntwdt_watchdog_expired == 0) {
623 			ntwdt_arm_watchdog(ntwdt_state);
626 			    ntwdt_state->ntwdt_time_remaining));
629 		mutex_exit(&ntwdt_state->ntwdt_runstate_mutex);
638 	mutex_exit(&ntwdt_state->ntwdt_runstate_mutex);
653 	ntwdt_runstate_t *ntwdt_state;
655 	ntwdt_state = ntwdt_ptr->ntwdt_run_state;
657 	mutex_enter(&ntwdt_state->ntwdt_runstate_mutex);
659 	if ((ntwdt_state->ntwdt_watchdog_flags & NTWDT_FLAG_SKIP_CYCLIC) != 0) {
660 		ntwdt_state->ntwdt_watchdog_flags &= ~NTWDT_FLAG_SKIP_CYCLIC;
664 	if ((ntwdt_state->ntwdt_timer_running == 0) ||
666 	    (ntwdt_state->ntwdt_watchdog_enabled == 0)) {
671 	    "ddi_get_lbolt64(): %d\n", ntwdt_state->ntwdt_watchdog_timeout,
677 	ntwdt_state->ntwdt_time_remaining -= NTWDT_DECREMENT_INTERVAL;
679 	if (ntwdt_state->ntwdt_time_remaining == 0) {
681 		ntwdt_state->ntwdt_watchdog_expired = 1;
683 		if (ntwdt_state->ntwdt_reset_enabled != 0) {
687 			mutex_exit(&ntwdt_state->ntwdt_runstate_mutex);
693 			ntwdt_state->ntwdt_watchdog_enabled = 0;
703 		    (int)TICK_TO_MSEC(ntwdt_state->ntwdt_time_remaining)));
707 	mutex_exit(&ntwdt_state->ntwdt_runstate_mutex);
712 ntwdt_arm_watchdog(ntwdt_runstate_t *ntwdt_state)
714 	ntwdt_state->ntwdt_time_remaining = ntwdt_state->ntwdt_watchdog_timeout;
716 	if (ntwdt_state->ntwdt_timer_running != 0) {
717 		ntwdt_state->ntwdt_watchdog_flags |= NTWDT_FLAG_SKIP_CYCLIC;
719 		ntwdt_state->ntwdt_watchdog_flags &= ~NTWDT_FLAG_SKIP_CYCLIC;
726 	ntwdt_runstate_t	*ntwdt_state = ntwdt_ptr->ntwdt_run_state;
727 	cyc_handler_t		*hdlr = &ntwdt_state->ntwdt_cycl_hdlr;
728 	cyc_time_t		*when = &ntwdt_state->ntwdt_cycl_time;
733 	when->cyt_interval = ntwdt_state->ntwdt_cyclic_interval;
736 	ntwdt_state->ntwdt_watchdog_expired = 0;
737 	ntwdt_state->ntwdt_timer_running = 1;
752 	ntwdt_runstate_t *ntwdt_state = ntwdt_ptr->ntwdt_run_state;
760 	ntwdt_state->ntwdt_watchdog_flags = 0;
761 	ntwdt_state->ntwdt_timer_running = 0;