80  * Prevent NMI reason port (0x61) being accessed simultaneously, can
213 pci_serr_error(unsigned char reason, struct pt_regs *regs)  in pci_serr_error()  argument
219 	pr_emerg("NMI: PCI system error (SERR) for reason %02x on CPU %d.\n",  in pci_serr_error()
220 		 reason, smp_processor_id());  in pci_serr_error()
228 	reason = (reason & NMI_REASON_CLEAR_MASK) | NMI_REASON_CLEAR_SERR;  in pci_serr_error()
229 	outb(reason, NMI_REASON_PORT);  in pci_serr_error()
234 io_check_error(unsigned char reason, struct pt_regs *regs)  in io_check_error()  argument
243 	"NMI: IOCK error (debug interrupt?) for reason %02x on CPU %d.\n",  in io_check_error()
244 		 reason, smp_processor_id());  in io_check_error()
259 	reason = (reason & NMI_REASON_CLEAR_MASK) | NMI_REASON_CLEAR_IOCHK;  in io_check_error()
260 	outb(reason, NMI_REASON_PORT);  in io_check_error()
268 	reason &= ~NMI_REASON_CLEAR_IOCHK;  in io_check_error()
269 	outb(reason, NMI_REASON_PORT);  in io_check_error()
274 unknown_nmi_error(unsigned char reason, struct pt_regs *regs)  in unknown_nmi_error()  argument
292 	pr_emerg("Uhhuh. NMI received for unknown reason %02x on CPU %d.\n",  in unknown_nmi_error()
293 		 reason, smp_processor_id());  in unknown_nmi_error()
308 	unsigned char reason = 0;  in default_do_nmi()  local
363 	reason = x86_platform.get_nmi_reason();  in default_do_nmi()
365 	if (reason & NMI_REASON_MASK) {  in default_do_nmi()
366 		if (reason & NMI_REASON_SERR)  in default_do_nmi()
367 			pci_serr_error(reason, regs);  in default_do_nmi()
368 		else if (reason & NMI_REASON_IOCHK)  in default_do_nmi()
369 			io_check_error(reason, regs);  in default_do_nmi()
416 		unknown_nmi_error(reason, regs);  in default_do_nmi()