91  * Prevent NMI reason port (0x61) being accessed simultaneously, can
228 pci_serr_error(unsigned char reason, struct pt_regs *regs)  in pci_serr_error()  argument
234 	pr_emerg("NMI: PCI system error (SERR) for reason %02x on CPU %d.\n",  in pci_serr_error()
235 		 reason, smp_processor_id());  in pci_serr_error()
243 	reason = (reason & NMI_REASON_CLEAR_MASK) | NMI_REASON_CLEAR_SERR;  in pci_serr_error()
244 	outb(reason, NMI_REASON_PORT);  in pci_serr_error()
249 io_check_error(unsigned char reason, struct pt_regs *regs)  in io_check_error()  argument
258 	"NMI: IOCK error (debug interrupt?) for reason %02x on CPU %d.\n",  in io_check_error()
259 		 reason, smp_processor_id());  in io_check_error()
274 	reason = (reason & NMI_REASON_CLEAR_MASK) | NMI_REASON_CLEAR_IOCHK;  in io_check_error()
275 	outb(reason, NMI_REASON_PORT);  in io_check_error()
283 	reason &= ~NMI_REASON_CLEAR_IOCHK;  in io_check_error()
284 	outb(reason, NMI_REASON_PORT);  in io_check_error()
289 unknown_nmi_error(unsigned char reason, struct pt_regs *regs)  in unknown_nmi_error()  argument
307 	pr_emerg_ratelimited("Uhhuh. NMI received for unknown reason %02x on CPU %d.\n",  in unknown_nmi_error()
308 			     reason, smp_processor_id());  in unknown_nmi_error()
322 	unsigned char reason = 0;  in default_do_nmi()  local
380 	reason = x86_platform.get_nmi_reason();  in default_do_nmi()
382 	if (reason & NMI_REASON_MASK) {  in default_do_nmi()
383 		if (reason & NMI_REASON_SERR)  in default_do_nmi()
384 			pci_serr_error(reason, regs);  in default_do_nmi()
385 		else if (reason & NMI_REASON_IOCHK)  in default_do_nmi()
386 			io_check_error(reason, regs);  in default_do_nmi()
433 		unknown_nmi_error(reason, regs);  in default_do_nmi()