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- /* SPDX-License-Identifier: GPL-2.0 */
- #ifndef _ASM_X86_NMI_H
- #define _ASM_X86_NMI_H
- #include <linux/irq_work.h>
- #include <linux/pm.h>
- #include <asm/irq.h>
- #include <asm/io.h>
- #ifdef CONFIG_X86_LOCAL_APIC
- extern int reserve_perfctr_nmi(unsigned int);
- extern void release_perfctr_nmi(unsigned int);
- extern int reserve_evntsel_nmi(unsigned int);
- extern void release_evntsel_nmi(unsigned int);
- struct ctl_table;
- extern int proc_nmi_enabled(struct ctl_table *, int ,
- void __user *, size_t *, loff_t *);
- extern int unknown_nmi_panic;
- #endif /* CONFIG_X86_LOCAL_APIC */
- #define NMI_FLAG_FIRST 1
- enum {
- NMI_LOCAL=0,
- NMI_UNKNOWN,
- NMI_SERR,
- NMI_IO_CHECK,
- NMI_MAX
- };
- #define NMI_DONE 0
- #define NMI_HANDLED 1
- typedef int (*nmi_handler_t)(unsigned int, struct pt_regs *);
- struct nmiaction {
- struct list_head list;
- nmi_handler_t handler;
- u64 max_duration;
- unsigned long flags;
- const char *name;
- };
- #define register_nmi_handler(t, fn, fg, n, init...) \
- ({ \
- static struct nmiaction init fn##_na = { \
- .list = LIST_HEAD_INIT(fn##_na.list), \
- .handler = (fn), \
- .name = (n), \
- .flags = (fg), \
- }; \
- __register_nmi_handler((t), &fn##_na); \
- })
- int __register_nmi_handler(unsigned int, struct nmiaction *);
- void unregister_nmi_handler(unsigned int, const char *);
- void stop_nmi(void);
- void restart_nmi(void);
- void local_touch_nmi(void);
- #endif /* _ASM_X86_NMI_H */
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