H. Peter Anvin | 1965aae | 2008-10-22 22:26:29 -0700 | [diff] [blame] | 1 | #ifndef _ASM_X86_NMI_H |
| 2 | #define _ASM_X86_NMI_H |
Glauber de Oliveira Costa | 6d60cd5 | 2008-03-19 14:25:36 -0300 | [diff] [blame] | 3 | |
| 4 | #include <linux/pm.h> |
| 5 | #include <asm/irq.h> |
| 6 | #include <asm/io.h> |
| 7 | |
Don Zickus | 4a7863c | 2010-12-22 14:00:03 -0500 | [diff] [blame] | 8 | #ifdef CONFIG_X86_LOCAL_APIC |
Glauber de Oliveira Costa | 6d60cd5 | 2008-03-19 14:25:36 -0300 | [diff] [blame] | 9 | |
Glauber de Oliveira Costa | 6d60cd5 | 2008-03-19 14:25:36 -0300 | [diff] [blame] | 10 | extern int avail_to_resrv_perfctr_nmi_bit(unsigned int); |
Glauber de Oliveira Costa | 6d60cd5 | 2008-03-19 14:25:36 -0300 | [diff] [blame] | 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); |
Glauber de Oliveira Costa | 6d60cd5 | 2008-03-19 14:25:36 -0300 | [diff] [blame] | 15 | |
Glauber de Oliveira Costa | 6d60cd5 | 2008-03-19 14:25:36 -0300 | [diff] [blame] | 16 | struct ctl_table; |
Alexey Dobriyan | 8d65af7 | 2009-09-23 15:57:19 -0700 | [diff] [blame] | 17 | extern int proc_nmi_enabled(struct ctl_table *, int , |
Glauber de Oliveira Costa | 6d60cd5 | 2008-03-19 14:25:36 -0300 | [diff] [blame] | 18 | void __user *, size_t *, loff_t *); |
| 19 | extern int unknown_nmi_panic; |
| 20 | |
Ingo Molnar | 47cab6a | 2009-08-03 09:31:54 +0200 | [diff] [blame] | 21 | void arch_trigger_all_cpu_backtrace(void); |
| 22 | #define arch_trigger_all_cpu_backtrace arch_trigger_all_cpu_backtrace |
Glauber de Oliveira Costa | 6d60cd5 | 2008-03-19 14:25:36 -0300 | [diff] [blame] | 23 | #endif |
| 24 | |
Don Zickus | 166d751 | 2011-01-06 16:18:49 -0500 | [diff] [blame] | 25 | /* |
| 26 | * Define some priorities for the nmi notifier call chain. |
| 27 | * |
| 28 | * Create a local nmi bit that has a higher priority than |
| 29 | * external nmis, because the local ones are more frequent. |
| 30 | * |
| 31 | * Also setup some default high/normal/low settings for |
Lucas De Marchi | 0d2eb44 | 2011-03-17 16:24:16 -0300 | [diff] [blame] | 32 | * subsystems to registers with. Using 4 bits to separate |
| 33 | * the priorities. This can go a lot higher if needed be. |
Don Zickus | 166d751 | 2011-01-06 16:18:49 -0500 | [diff] [blame] | 34 | */ |
| 35 | |
| 36 | #define NMI_LOCAL_SHIFT 16 /* randomly picked */ |
| 37 | #define NMI_LOCAL_BIT (1ULL << NMI_LOCAL_SHIFT) |
| 38 | #define NMI_HIGH_PRIOR (1ULL << 8) |
| 39 | #define NMI_NORMAL_PRIOR (1ULL << 4) |
| 40 | #define NMI_LOW_PRIOR (1ULL << 0) |
| 41 | #define NMI_LOCAL_HIGH_PRIOR (NMI_LOCAL_BIT | NMI_HIGH_PRIOR) |
| 42 | #define NMI_LOCAL_NORMAL_PRIOR (NMI_LOCAL_BIT | NMI_NORMAL_PRIOR) |
| 43 | #define NMI_LOCAL_LOW_PRIOR (NMI_LOCAL_BIT | NMI_LOW_PRIOR) |
| 44 | |
Glauber de Oliveira Costa | 6d60cd5 | 2008-03-19 14:25:36 -0300 | [diff] [blame] | 45 | void stop_nmi(void); |
| 46 | void restart_nmi(void); |
| 47 | |
H. Peter Anvin | 1965aae | 2008-10-22 22:26:29 -0700 | [diff] [blame] | 48 | #endif /* _ASM_X86_NMI_H */ |