94 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()
217 	watchdog_device.timer_set = t;  in intel_scu_set_heartbeat()
218 	watchdog_device.threshold =  in intel_scu_set_heartbeat()
219 		timer_margin * watchdog_device.timer_tbl_ptr->freq_hz;  in intel_scu_set_heartbeat()
220 	watchdog_device.soft_threshold =  in intel_scu_set_heartbeat()
221 		(watchdog_device.timer_set - timer_margin)  in intel_scu_set_heartbeat()
222 		* watchdog_device.timer_tbl_ptr->freq_hz;  in intel_scu_set_heartbeat()
225 		watchdog_device.timer_tbl_ptr->freq_hz);  in intel_scu_set_heartbeat()
227 		watchdog_device.timer_set);  in intel_scu_set_heartbeat()
231 		watchdog_device.threshold);  in intel_scu_set_heartbeat()
233 		watchdog_device.soft_threshold);  in intel_scu_set_heartbeat()
237 	watchdog_device.threshold =  in intel_scu_set_heartbeat()
238 		watchdog_device.threshold / FREQ_ADJUSTMENT;  in intel_scu_set_heartbeat()
239 	watchdog_device.soft_threshold =  in intel_scu_set_heartbeat()
240 		watchdog_device.soft_threshold / FREQ_ADJUSTMENT;  in intel_scu_set_heartbeat()
243 	iowrite32(0x00000002, watchdog_device.timer_control_addr);  in intel_scu_set_heartbeat()
246 	ipc_ret = watchdog_set_ipc(watchdog_device.soft_threshold,  in intel_scu_set_heartbeat()
247 				   watchdog_device.threshold);  in intel_scu_set_heartbeat()
260 	soft_value = watchdog_device.soft_threshold & 0xFFFF0000;  in intel_scu_set_heartbeat()
273 		iowrite32(watchdog_device.soft_threshold,  in intel_scu_set_heartbeat()
274 			watchdog_device.timer_load_count_addr);  in intel_scu_set_heartbeat()
277 		hw_pre_value = ioread32(watchdog_device.timer_load_count_addr);  in intel_scu_set_heartbeat()
281 		iowrite32(0x00000003, watchdog_device.timer_control_addr);  in intel_scu_set_heartbeat()
284 		hw_value = ioread32(watchdog_device.timer_load_count_addr);  in intel_scu_set_heartbeat()
290 	watchdog_device.timer_started = 1;  in intel_scu_set_heartbeat()
303 	if (test_and_set_bit(0, &watchdog_device.driver_open))  in intel_scu_open()
307 	if (watchdog_device.driver_closed)  in intel_scu_open()
324 	if (!test_and_clear_bit(0, &watchdog_device.driver_open)) {  in intel_scu_release()
329 	if (!watchdog_device.timer_started) {  in intel_scu_release()
339 	watchdog_device.driver_closed = 1;  in intel_scu_release()
357 	if (watchdog_device.timer_started)  in intel_scu_write()
362 		intel_scu_set_heartbeat(watchdog_device.timer_set);  in intel_scu_write()
407 		return put_user(watchdog_device.soft_threshold, p);  in intel_scu_ioctl()
468 	watchdog_device.timer_tbl_ptr = sfi_get_mtmr(sfi_mtimer_num-1);  in intel_scu_watchdog_init()
470 	if (watchdog_device.timer_tbl_ptr == NULL) {  in intel_scu_watchdog_init()
475 	if (watchdog_device.timer_tbl_ptr->phys_addr == 0) {  in intel_scu_watchdog_init()
481 	if (watchdog_device.timer_tbl_ptr->irq == 0) {  in intel_scu_watchdog_init()
487 	tmp_addr = ioremap_nocache(watchdog_device.timer_tbl_ptr->phys_addr,  in intel_scu_watchdog_init()
495 	watchdog_device.timer_load_count_addr = tmp_addr++;  in intel_scu_watchdog_init()
496 	watchdog_device.timer_current_value_addr = tmp_addr++;  in intel_scu_watchdog_init()
497 	watchdog_device.timer_control_addr = tmp_addr++;  in intel_scu_watchdog_init()
498 	watchdog_device.timer_clear_interrupt_addr = tmp_addr++;  in intel_scu_watchdog_init()
499 	watchdog_device.timer_interrupt_status_addr = tmp_addr++;  in intel_scu_watchdog_init()
503 	watchdog_device.timer_set = timer_set;  in intel_scu_watchdog_init()
504 	watchdog_device.threshold =  in intel_scu_watchdog_init()
505 		timer_margin * watchdog_device.timer_tbl_ptr->freq_hz;  in intel_scu_watchdog_init()
506 	watchdog_device.soft_threshold =  in intel_scu_watchdog_init()
507 		(watchdog_device.timer_set - timer_margin)  in intel_scu_watchdog_init()
508 		* watchdog_device.timer_tbl_ptr->freq_hz;  in intel_scu_watchdog_init()
511 	watchdog_device.intel_scu_notifier.notifier_call =  in intel_scu_watchdog_init()
514 	ret = register_reboot_notifier(&watchdog_device.intel_scu_notifier);  in intel_scu_watchdog_init()
520 	watchdog_device.miscdev.minor = WATCHDOG_MINOR;  in intel_scu_watchdog_init()
521 	watchdog_device.miscdev.name = "watchdog";  in intel_scu_watchdog_init()
522 	watchdog_device.miscdev.fops = &intel_scu_fops;  in intel_scu_watchdog_init()
524 	ret = misc_register(&watchdog_device.miscdev);  in intel_scu_watchdog_init()
531 	ret = request_irq((unsigned int)watchdog_device.timer_tbl_ptr->irq,  in intel_scu_watchdog_init()
534 		&watchdog_device.timer_load_count_addr);  in intel_scu_watchdog_init()
546 	misc_deregister(&watchdog_device.miscdev);  in intel_scu_watchdog_init()
548 	unregister_reboot_notifier(&watchdog_device.intel_scu_notifier);  in intel_scu_watchdog_init()
551 	iounmap(watchdog_device.timer_load_count_addr);  in intel_scu_watchdog_init()
558 	misc_deregister(&watchdog_device.miscdev);  in intel_scu_watchdog_exit()
559 	unregister_reboot_notifier(&watchdog_device.intel_scu_notifier);  in intel_scu_watchdog_exit()
561 	iowrite32(0x00000002, watchdog_device.timer_control_addr);  in intel_scu_watchdog_exit()
562 	iounmap(watchdog_device.timer_load_count_addr);  in intel_scu_watchdog_exit()