95 static struct intel_scu_watchdog_dev watchdog_device;  variable
158 	int_status = ioread32(watchdog_device.timer_interrupt_status_addr);  in watchdog_timer_interrupt()
166 	if (watchdog_device.timer_started == 0) {  in watchdog_timer_interrupt()
172 	iowrite32(0x00000002, watchdog_device.timer_control_addr);  in watchdog_timer_interrupt()
175 	iowrite32(watchdog_device.threshold,  in watchdog_timer_interrupt()
176 		  watchdog_device.timer_load_count_addr);  in watchdog_timer_interrupt()
179 	iowrite32(0x00000003, watchdog_device.timer_control_addr);  in watchdog_timer_interrupt()
188 	ioread32(watchdog_device.timer_clear_interrupt_addr);  in intel_scu_keepalive()
191 	iowrite32(0x00000002, watchdog_device.timer_control_addr);  in intel_scu_keepalive()
194 	iowrite32(watchdog_device.soft_threshold,  in intel_scu_keepalive()
195 		  watchdog_device.timer_load_count_addr);  in intel_scu_keepalive()
198 	iowrite32(0x00000003, watchdog_device.timer_control_addr);  in intel_scu_keepalive()
205 	iowrite32(0, watchdog_device.timer_control_addr);  in intel_scu_stop()
216 	watchdog_device.timer_set = t;  in intel_scu_set_heartbeat()
217 	watchdog_device.threshold =  in intel_scu_set_heartbeat()
218 		timer_margin * watchdog_device.timer_tbl_ptr->freq_hz;  in intel_scu_set_heartbeat()
219 	watchdog_device.soft_threshold =  in intel_scu_set_heartbeat()
220 		(watchdog_device.timer_set - timer_margin)  in intel_scu_set_heartbeat()
221 		* watchdog_device.timer_tbl_ptr->freq_hz;  in intel_scu_set_heartbeat()
224 		 watchdog_device.timer_tbl_ptr->freq_hz);  in intel_scu_set_heartbeat()
226 		 watchdog_device.timer_set);  in intel_scu_set_heartbeat()
229 		 watchdog_device.threshold);  in intel_scu_set_heartbeat()
231 		 watchdog_device.soft_threshold);  in intel_scu_set_heartbeat()
235 	watchdog_device.threshold =  in intel_scu_set_heartbeat()
236 		watchdog_device.threshold / FREQ_ADJUSTMENT;  in intel_scu_set_heartbeat()
237 	watchdog_device.soft_threshold =  in intel_scu_set_heartbeat()
238 		watchdog_device.soft_threshold / FREQ_ADJUSTMENT;  in intel_scu_set_heartbeat()
241 	iowrite32(0x00000002, watchdog_device.timer_control_addr);  in intel_scu_set_heartbeat()
244 	ipc_ret = watchdog_set_ipc(watchdog_device.soft_threshold,  in intel_scu_set_heartbeat()
245 				   watchdog_device.threshold);  in intel_scu_set_heartbeat()
258 	soft_value = watchdog_device.soft_threshold & 0xFFFF0000;  in intel_scu_set_heartbeat()
271 		iowrite32(watchdog_device.soft_threshold,  in intel_scu_set_heartbeat()
272 			watchdog_device.timer_load_count_addr);  in intel_scu_set_heartbeat()
275 		ioread32(watchdog_device.timer_load_count_addr);  in intel_scu_set_heartbeat()
278 		iowrite32(0x00000003, watchdog_device.timer_control_addr);  in intel_scu_set_heartbeat()
281 		hw_value = ioread32(watchdog_device.timer_load_count_addr);  in intel_scu_set_heartbeat()
287 	watchdog_device.timer_started = 1;  in intel_scu_set_heartbeat()
300 	if (test_and_set_bit(0, &watchdog_device.driver_open))  in intel_scu_open()
304 	if (watchdog_device.driver_closed)  in intel_scu_open()
321 	if (!test_and_clear_bit(0, &watchdog_device.driver_open)) {  in intel_scu_release()
326 	if (!watchdog_device.timer_started) {  in intel_scu_release()
335 	watchdog_device.driver_closed = 1;  in intel_scu_release()
353 	if (watchdog_device.timer_started)  in intel_scu_write()
358 		intel_scu_set_heartbeat(watchdog_device.timer_set);  in intel_scu_write()
403 		return put_user(watchdog_device.soft_threshold, p);  in intel_scu_ioctl()
463 	watchdog_device.timer_tbl_ptr = sfi_get_mtmr(sfi_mtimer_num-1);  in intel_scu_watchdog_init()
465 	if (watchdog_device.timer_tbl_ptr == NULL) {  in intel_scu_watchdog_init()
470 	if (watchdog_device.timer_tbl_ptr->phys_addr == 0) {  in intel_scu_watchdog_init()
476 	if (watchdog_device.timer_tbl_ptr->irq == 0) {  in intel_scu_watchdog_init()
481 	tmp_addr = ioremap_nocache(watchdog_device.timer_tbl_ptr->phys_addr,  in intel_scu_watchdog_init()
489 	watchdog_device.timer_load_count_addr = tmp_addr++;  in intel_scu_watchdog_init()
490 	watchdog_device.timer_current_value_addr = tmp_addr++;  in intel_scu_watchdog_init()
491 	watchdog_device.timer_control_addr = tmp_addr++;  in intel_scu_watchdog_init()
492 	watchdog_device.timer_clear_interrupt_addr = tmp_addr++;  in intel_scu_watchdog_init()
493 	watchdog_device.timer_interrupt_status_addr = tmp_addr++;  in intel_scu_watchdog_init()
497 	watchdog_device.timer_set = timer_set;  in intel_scu_watchdog_init()
498 	watchdog_device.threshold =  in intel_scu_watchdog_init()
499 		timer_margin * watchdog_device.timer_tbl_ptr->freq_hz;  in intel_scu_watchdog_init()
500 	watchdog_device.soft_threshold =  in intel_scu_watchdog_init()
501 		(watchdog_device.timer_set - timer_margin)  in intel_scu_watchdog_init()
502 		* watchdog_device.timer_tbl_ptr->freq_hz;  in intel_scu_watchdog_init()
505 	watchdog_device.intel_scu_notifier.notifier_call =  in intel_scu_watchdog_init()
508 	ret = register_reboot_notifier(&watchdog_device.intel_scu_notifier);  in intel_scu_watchdog_init()
514 	watchdog_device.miscdev.minor = WATCHDOG_MINOR;  in intel_scu_watchdog_init()
515 	watchdog_device.miscdev.name = "watchdog";  in intel_scu_watchdog_init()
516 	watchdog_device.miscdev.fops = &intel_scu_fops;  in intel_scu_watchdog_init()
518 	ret = misc_register(&watchdog_device.miscdev);  in intel_scu_watchdog_init()
525 	ret = request_irq((unsigned int)watchdog_device.timer_tbl_ptr->irq,  in intel_scu_watchdog_init()
528 		&watchdog_device.timer_load_count_addr);  in intel_scu_watchdog_init()
540 	misc_deregister(&watchdog_device.miscdev);  in intel_scu_watchdog_init()
542 	unregister_reboot_notifier(&watchdog_device.intel_scu_notifier);  in intel_scu_watchdog_init()
545 	iounmap(watchdog_device.timer_load_count_addr);  in intel_scu_watchdog_init()
552 	misc_deregister(&watchdog_device.miscdev);  in intel_scu_watchdog_exit()
553 	unregister_reboot_notifier(&watchdog_device.intel_scu_notifier);  in intel_scu_watchdog_exit()
555 	iowrite32(0x00000002, watchdog_device.timer_control_addr);  in intel_scu_watchdog_exit()
556 	iounmap(watchdog_device.timer_load_count_addr);  in intel_scu_watchdog_exit()