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Commit | Line | Data |
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b2441318 | 1 | /* SPDX-License-Identifier: GPL-2.0 */ |
1965aae3 PA |
2 | #ifndef _ASM_X86_NMI_H |
3 | #define _ASM_X86_NMI_H | |
6d60cd53 | 4 | |
e90c7853 | 5 | #include <linux/irq_work.h> |
6d60cd53 GOC |
6 | #include <linux/pm.h> |
7 | #include <asm/irq.h> | |
8 | #include <asm/io.h> | |
9 | ||
4a7863cc | 10 | #ifdef CONFIG_X86_LOCAL_APIC |
6d60cd53 | 11 | |
6d60cd53 | 12 | extern int avail_to_resrv_perfctr_nmi_bit(unsigned int); |
6d60cd53 GOC |
13 | extern int reserve_perfctr_nmi(unsigned int); |
14 | extern void release_perfctr_nmi(unsigned int); | |
15 | extern int reserve_evntsel_nmi(unsigned int); | |
16 | extern void release_evntsel_nmi(unsigned int); | |
6d60cd53 | 17 | |
6d60cd53 | 18 | struct ctl_table; |
8d65af78 | 19 | extern int proc_nmi_enabled(struct ctl_table *, int , |
6d60cd53 GOC |
20 | void __user *, size_t *, loff_t *); |
21 | extern int unknown_nmi_panic; | |
22 | ||
b52e0a7c | 23 | #endif /* CONFIG_X86_LOCAL_APIC */ |
6d60cd53 | 24 | |
c9126b2e DZ |
25 | #define NMI_FLAG_FIRST 1 |
26 | ||
27 | enum { | |
28 | NMI_LOCAL=0, | |
29 | NMI_UNKNOWN, | |
553222f3 DZ |
30 | NMI_SERR, |
31 | NMI_IO_CHECK, | |
c9126b2e DZ |
32 | NMI_MAX |
33 | }; | |
34 | ||
35 | #define NMI_DONE 0 | |
36 | #define NMI_HANDLED 1 | |
37 | ||
38 | typedef int (*nmi_handler_t)(unsigned int, struct pt_regs *); | |
39 | ||
72b3fb24 LZ |
40 | struct nmiaction { |
41 | struct list_head list; | |
42 | nmi_handler_t handler; | |
e90c7853 PZ |
43 | u64 max_duration; |
44 | struct irq_work irq_work; | |
6ff968cc | 45 | unsigned long flags; |
72b3fb24 LZ |
46 | const char *name; |
47 | }; | |
48 | ||
0718467c | 49 | #define register_nmi_handler(t, fn, fg, n, init...) \ |
72b3fb24 | 50 | ({ \ |
0718467c | 51 | static struct nmiaction init fn##_na = { \ |
72b3fb24 LZ |
52 | .handler = (fn), \ |
53 | .name = (n), \ | |
54 | .flags = (fg), \ | |
55 | }; \ | |
0718467c | 56 | __register_nmi_handler((t), &fn##_na); \ |
eeaaa96a DZ |
57 | }) |
58 | ||
72b3fb24 | 59 | int __register_nmi_handler(unsigned int, struct nmiaction *); |
c9126b2e DZ |
60 | |
61 | void unregister_nmi_handler(unsigned int, const char *); | |
62 | ||
6d60cd53 GOC |
63 | void stop_nmi(void); |
64 | void restart_nmi(void); | |
b227e233 | 65 | void local_touch_nmi(void); |
6d60cd53 | 66 | |
1965aae3 | 67 | #endif /* _ASM_X86_NMI_H */ |