79 static struct intel_scu_watchdog_dev watchdog_device;  variable
142 	int_status = ioread32(watchdog_device.timer_interrupt_status_addr);  in watchdog_timer_interrupt()
150 	if (watchdog_device.timer_started == 0) {  in watchdog_timer_interrupt()
156 	iowrite32(0x00000002, watchdog_device.timer_control_addr);  in watchdog_timer_interrupt()
159 	iowrite32(watchdog_device.threshold,  in watchdog_timer_interrupt()
160 		  watchdog_device.timer_load_count_addr);  in watchdog_timer_interrupt()
163 	iowrite32(0x00000003, watchdog_device.timer_control_addr);  in watchdog_timer_interrupt()
172 	ioread32(watchdog_device.timer_clear_interrupt_addr);  in intel_scu_keepalive()
175 	iowrite32(0x00000002, watchdog_device.timer_control_addr);  in intel_scu_keepalive()
178 	iowrite32(watchdog_device.soft_threshold,  in intel_scu_keepalive()
179 		  watchdog_device.timer_load_count_addr);  in intel_scu_keepalive()
182 	iowrite32(0x00000003, watchdog_device.timer_control_addr);  in intel_scu_keepalive()
189 	iowrite32(0, watchdog_device.timer_control_addr);  in intel_scu_stop()
200 	watchdog_device.timer_set = t;  in intel_scu_set_heartbeat()
201 	watchdog_device.threshold =  in intel_scu_set_heartbeat()
202 		timer_margin * watchdog_device.timer_tbl_ptr->freq_hz;  in intel_scu_set_heartbeat()
203 	watchdog_device.soft_threshold =  in intel_scu_set_heartbeat()
204 		(watchdog_device.timer_set - timer_margin)  in intel_scu_set_heartbeat()
205 		* watchdog_device.timer_tbl_ptr->freq_hz;  in intel_scu_set_heartbeat()
208 		 watchdog_device.timer_tbl_ptr->freq_hz);  in intel_scu_set_heartbeat()
210 		 watchdog_device.timer_set);  in intel_scu_set_heartbeat()
213 		 watchdog_device.threshold);  in intel_scu_set_heartbeat()
215 		 watchdog_device.soft_threshold);  in intel_scu_set_heartbeat()
219 	watchdog_device.threshold =  in intel_scu_set_heartbeat()
220 		watchdog_device.threshold / FREQ_ADJUSTMENT;  in intel_scu_set_heartbeat()
221 	watchdog_device.soft_threshold =  in intel_scu_set_heartbeat()
222 		watchdog_device.soft_threshold / FREQ_ADJUSTMENT;  in intel_scu_set_heartbeat()
225 	iowrite32(0x00000002, watchdog_device.timer_control_addr);  in intel_scu_set_heartbeat()
228 	ipc_ret = watchdog_set_ipc(watchdog_device.soft_threshold,  in intel_scu_set_heartbeat()
229 				   watchdog_device.threshold);  in intel_scu_set_heartbeat()
242 	soft_value = watchdog_device.soft_threshold & 0xFFFF0000;  in intel_scu_set_heartbeat()
255 		iowrite32(watchdog_device.soft_threshold,  in intel_scu_set_heartbeat()
256 			watchdog_device.timer_load_count_addr);  in intel_scu_set_heartbeat()
259 		ioread32(watchdog_device.timer_load_count_addr);  in intel_scu_set_heartbeat()
262 		iowrite32(0x00000003, watchdog_device.timer_control_addr);  in intel_scu_set_heartbeat()
265 		hw_value = ioread32(watchdog_device.timer_load_count_addr);  in intel_scu_set_heartbeat()
271 	watchdog_device.timer_started = 1;  in intel_scu_set_heartbeat()
284 	if (test_and_set_bit(0, &watchdog_device.driver_open))  in intel_scu_open()
288 	if (watchdog_device.driver_closed)  in intel_scu_open()
305 	if (!test_and_clear_bit(0, &watchdog_device.driver_open)) {  in intel_scu_release()
310 	if (!watchdog_device.timer_started) {  in intel_scu_release()
319 	watchdog_device.driver_closed = 1;  in intel_scu_release()
337 	if (watchdog_device.timer_started)  in intel_scu_write()
342 		intel_scu_set_heartbeat(watchdog_device.timer_set);  in intel_scu_write()
387 		return put_user(watchdog_device.soft_threshold, p);  in intel_scu_ioctl()
447 	watchdog_device.timer_tbl_ptr = sfi_get_mtmr(sfi_mtimer_num-1);  in intel_scu_watchdog_init()
449 	if (watchdog_device.timer_tbl_ptr == NULL) {  in intel_scu_watchdog_init()
454 	if (watchdog_device.timer_tbl_ptr->phys_addr == 0) {  in intel_scu_watchdog_init()
460 	if (watchdog_device.timer_tbl_ptr->irq == 0) {  in intel_scu_watchdog_init()
465 	tmp_addr = ioremap_nocache(watchdog_device.timer_tbl_ptr->phys_addr,  in intel_scu_watchdog_init()
473 	watchdog_device.timer_load_count_addr = tmp_addr++;  in intel_scu_watchdog_init()
474 	watchdog_device.timer_current_value_addr = tmp_addr++;  in intel_scu_watchdog_init()
475 	watchdog_device.timer_control_addr = tmp_addr++;  in intel_scu_watchdog_init()
476 	watchdog_device.timer_clear_interrupt_addr = tmp_addr++;  in intel_scu_watchdog_init()
477 	watchdog_device.timer_interrupt_status_addr = tmp_addr++;  in intel_scu_watchdog_init()
481 	watchdog_device.timer_set = timer_set;  in intel_scu_watchdog_init()
482 	watchdog_device.threshold =  in intel_scu_watchdog_init()
483 		timer_margin * watchdog_device.timer_tbl_ptr->freq_hz;  in intel_scu_watchdog_init()
484 	watchdog_device.soft_threshold =  in intel_scu_watchdog_init()
485 		(watchdog_device.timer_set - timer_margin)  in intel_scu_watchdog_init()
486 		* watchdog_device.timer_tbl_ptr->freq_hz;  in intel_scu_watchdog_init()
489 	watchdog_device.intel_scu_notifier.notifier_call =  in intel_scu_watchdog_init()
492 	ret = register_reboot_notifier(&watchdog_device.intel_scu_notifier);  in intel_scu_watchdog_init()
498 	watchdog_device.miscdev.minor = WATCHDOG_MINOR;  in intel_scu_watchdog_init()
499 	watchdog_device.miscdev.name = "watchdog";  in intel_scu_watchdog_init()
500 	watchdog_device.miscdev.fops = &intel_scu_fops;  in intel_scu_watchdog_init()
502 	ret = misc_register(&watchdog_device.miscdev);  in intel_scu_watchdog_init()
509 	ret = request_irq((unsigned int)watchdog_device.timer_tbl_ptr->irq,  in intel_scu_watchdog_init()
512 		&watchdog_device.timer_load_count_addr);  in intel_scu_watchdog_init()
524 	misc_deregister(&watchdog_device.miscdev);  in intel_scu_watchdog_init()
526 	unregister_reboot_notifier(&watchdog_device.intel_scu_notifier);  in intel_scu_watchdog_init()
529 	iounmap(watchdog_device.timer_load_count_addr);  in intel_scu_watchdog_init()