drivers/char/hpet.c

167 	struct hpet_timer __iomem *timer;
175 	timer = devp->hd_timer;
178 	v = readl(&timer->hpet_config);
181 		writel(v, &timer->hpet_config);
185 	v = (readq(&timer->hpet_config) & Tn_INT_ROUTE_CAP_MASK) >>
213 		v = readl(&timer->hpet_config);
215 		writel(v, &timer->hpet_config);
383 	struct hpet_timer __iomem *timer;
387 	timer = devp->hd_timer;
391 	writeq((readq(&timer->hpet_config) & ~Tn_INT_ENB_CNF_MASK),
392 	       &timer->hpet_config);
400 	    && readq(&timer->hpet_config) & Tn_TYPE_CNF_MASK) {
403 		v = readq(&timer->hpet_config);
405 		writeq(v, &timer->hpet_config);
420 	struct hpet_timer __iomem *timer;
427 	timer = devp->hd_timer;
443 	if (readl(&timer->hpet_config) & Tn_INT_TYPE_CNF_MASK)
455 			 * unwanted interrupt status bit, program the timer
458 			writel(readl(&timer->hpet_config) & ~Tn_TYPE_CNF_MASK,
459 			       &timer->hpet_config);
461 				      &timer->hpet_compare);
485 	v = readq(&timer->hpet_config);
495 		writeq(v, &timer->hpet_config);
506 		write_counter(t + m + hpetp->hp_delta, &timer->hpet_compare);
511 		write_counter(t, &timer->hpet_compare);
515 		write_counter(t + m + hpetp->hp_delta, &timer->hpet_compare);
522 	writeq(g, &timer->hpet_config);
528 /* converts Hz to number of timer ticks */
542 	struct hpet_timer __iomem *timer;
553 		timer = devp->hd_timer;
568 		v = readq(&timer->hpet_config);
570 		writeq(v, &timer->hpet_config);
584 			    readq(&timer->hpet_config) & Tn_PER_INT_CAP_MASK;
590 		v = readq(&timer->hpet_config);
598 		v = readq(&timer->hpet_config);
604 		    readq(&timer->hpet_config) & Tn_TYPE_CNF_MASK) {
605 			v = readq(&timer->hpet_config);
607 			writeq(v, &timer->hpet_config);
716  * Adjustment for when arming the timer with
724 	struct hpet_timer __iomem *timer = NULL;
732 			timer = devp->hd_timer;
736 	if (!timer)
740 	t = read_counter(&timer->hpet_compare);
751 		write_counter(t + m + hpetp->hp_delta, &timer->hpet_compare);
867 		struct hpet_timer __iomem *timer;
869 		timer = &hpet->hpet_timers[devp - hpetp->hp_dev];
873 		devp->hd_timer = timer;
876 		 * If the timer was reserved by platform code,
877 		 * then make timer unavailable for opens.