1 // SPDX-License-Identifier: GPL-2.0-only
29 #define SECS_TO_TICKS(secs)		((secs) * 1000 / 128)  argument
39 static int kdumptimeout = -1;
41 static void __iomem *pci_mem_addr;		/* the PCI-memory address */
72 	int reload = SECS_TO_TICKS(min(wdd->timeout, wdd->max_hw_heartbeat_ms/1000));  in hpwdt_start()
74 	dev_dbg(wdd->parent, "start watchdog 0x%08x:0x%08x:0x%02x\n", wdd->timeout, reload, control);  in hpwdt_start()
107 	int reload = SECS_TO_TICKS(min(wdd->timeout, wdd->max_hw_heartbeat_ms/1000));  in hpwdt_ping()
109 	dev_dbg(wdd->parent, "ping  watchdog 0x%08x:0x%08x\n", wdd->timeout, reload);  in hpwdt_ping()
122 	dev_dbg(wdd->parent, "set_timeout = %d\n", val);  in hpwdt_settimeout()
124 	wdd->timeout = val;  in hpwdt_settimeout()
125 	if (val <= wdd->pretimeout) {  in hpwdt_settimeout()
126 		dev_dbg(wdd->parent, "pretimeout < timeout. Setting to zero\n");  in hpwdt_settimeout()
127 		wdd->pretimeout = 0;  in hpwdt_settimeout()
142 	dev_dbg(wdd->parent, "set_pretimeout = %d\n", req);  in hpwdt_set_pretimeout()
145 		if (val >= wdd->timeout)  in hpwdt_set_pretimeout()
146 			return -EINVAL;  in hpwdt_set_pretimeout()
150 		dev_dbg(wdd->parent, "Rounding pretimeout to: %d\n", val);  in hpwdt_set_pretimeout()
152 	wdd->pretimeout = val;  in hpwdt_set_pretimeout()
188 		unsigned int val = max((unsigned int)kdumptimeout, hpwdt_dev.timeout);  in hpwdt_pretimeout()
228 	.timeout	= DEFAULT_MARGIN,
255 	dev_info(&dev->dev,  in hpwdt_init_nmi_decoding()
265 	dev_warn(&dev->dev,  in hpwdt_init_nmi_decoding()
292 	if (dev->subsystem_vendor != PCI_VENDOR_ID_HP &&  in hpwdt_init_one()
293 	    dev->subsystem_vendor != PCI_VENDOR_ID_HP_3PAR) {  in hpwdt_init_one()
294 		dev_warn(&dev->dev,  in hpwdt_init_one()
296 		return -ENODEV;  in hpwdt_init_one()
300 		dev_dbg(&dev->dev, "Not supported on this device\n");  in hpwdt_init_one()
301 		return -ENODEV;  in hpwdt_init_one()
305 		dev_warn(&dev->dev,  in hpwdt_init_one()
307 			ent->vendor, ent->device);  in hpwdt_init_one()
308 		return -ENODEV;  in hpwdt_init_one()
313 		dev_warn(&dev->dev,  in hpwdt_init_one()
315 		retval = -ENOMEM;  in hpwdt_init_one()
324 		dev_info(&dev->dev, "timer is running\n");  in hpwdt_init_one()
342 	if (pretimeout && hpwdt_dev.timeout <= PRETIMEOUT_SEC) {  in hpwdt_init_one()
343 		dev_warn(&dev->dev, "timeout <= pretimeout. Setting pretimeout to zero\n");  in hpwdt_init_one()
349 	hpwdt_dev.parent = &dev->dev;  in hpwdt_init_one()
354 	dev_info(&dev->dev, "HPE Watchdog Timer Driver: Version: %s\n",  in hpwdt_init_one()
356 	dev_info(&dev->dev, "timeout: %d seconds (nowayout=%d)\n",  in hpwdt_init_one()
357 				hpwdt_dev.timeout, nowayout);  in hpwdt_init_one()
358 	dev_info(&dev->dev, "pretimeout: %s.\n",  in hpwdt_init_one()
360 	dev_info(&dev->dev, "kdumptimeout: %d.\n", kdumptimeout);  in hpwdt_init_one()
419 MODULE_PARM_DESC(soft_margin, "Watchdog timeout in seconds");
421 module_param_named(timeout, soft_margin, int, 0);
422 MODULE_PARM_DESC(timeout, "Alias of soft_margin");
429 MODULE_PARM_DESC(kdumptimeout, "Timeout applied for crash kernel transition in seconds");