1 #ifndef _ASM_X86_NMI_H 2 #define _ASM_X86_NMI_H 3 4 #include <linux/pm.h> 5 #include <asm/irq.h> 6 #include <asm/io.h> 7 8 #ifdef CONFIG_X86_LOCAL_APIC 9 10 extern int avail_to_resrv_perfctr_nmi_bit(unsigned int); 11 extern int reserve_perfctr_nmi(unsigned int); 12 extern void release_perfctr_nmi(unsigned int); 13 extern int reserve_evntsel_nmi(unsigned int); 14 extern void release_evntsel_nmi(unsigned int); 15 16 struct ctl_table; 17 extern int proc_nmi_enabled(struct ctl_table *, int , 18 void __user *, size_t *, loff_t *); 19 extern int unknown_nmi_panic; 20 21 #endif /* CONFIG_X86_LOCAL_APIC */ 22 23 #define NMI_FLAG_FIRST 1 24 25 enum { 26 NMI_LOCAL=0, 27 NMI_UNKNOWN, 28 NMI_SERR, 29 NMI_IO_CHECK, 30 NMI_MAX 31 }; 32 33 #define NMI_DONE 0 34 #define NMI_HANDLED 1 35 36 typedef int (*nmi_handler_t)(unsigned int, struct pt_regs *); 37 38 struct nmiaction { 39 struct list_head list; 40 nmi_handler_t handler; 41 unsigned long flags; 42 const char *name; 43 }; 44 45 #define register_nmi_handler(t, fn, fg, n, init...) \ 46 ({ \ 47 static struct nmiaction init fn##_na = { \ 48 .handler = (fn), \ 49 .name = (n), \ 50 .flags = (fg), \ 51 }; \ 52 __register_nmi_handler((t), &fn##_na); \ 53 }) 54 55 int __register_nmi_handler(unsigned int, struct nmiaction *); 56 57 void unregister_nmi_handler(unsigned int, const char *); 58 59 void stop_nmi(void); 60 void restart_nmi(void); 61 void local_touch_nmi(void); 62 63 #endif /* _ASM_X86_NMI_H */ 64