forked from Minki/linux
166d751479
In order to consolidate the NMI die_chain events, we need to setup the priorities for the die notifiers. I started by defining a bunch of common priorities that can be used by the notifier blocks. Then I modified the notifier blocks to use the newly created priorities. Now that the priorities are straightened out, it should be easier to remove the event DIE_NMI_IPI. Signed-off-by: Don Zickus <dzickus@redhat.com> Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl> LKML-Reference: <1294348732-15030-4-git-send-email-dzickus@redhat.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
50 lines
1.5 KiB
C
50 lines
1.5 KiB
C
#ifndef _ASM_X86_NMI_H
|
|
#define _ASM_X86_NMI_H
|
|
|
|
#include <linux/pm.h>
|
|
#include <asm/irq.h>
|
|
#include <asm/io.h>
|
|
|
|
#ifdef CONFIG_X86_LOCAL_APIC
|
|
|
|
extern void die_nmi(char *str, struct pt_regs *regs, int do_panic);
|
|
extern int avail_to_resrv_perfctr_nmi_bit(unsigned int);
|
|
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;
|
|
|
|
void arch_trigger_all_cpu_backtrace(void);
|
|
#define arch_trigger_all_cpu_backtrace arch_trigger_all_cpu_backtrace
|
|
#endif
|
|
|
|
/*
|
|
* Define some priorities for the nmi notifier call chain.
|
|
*
|
|
* Create a local nmi bit that has a higher priority than
|
|
* external nmis, because the local ones are more frequent.
|
|
*
|
|
* Also setup some default high/normal/low settings for
|
|
* subsystems to registers with. Using 4 bits to seperate
|
|
* the priorities. This can go alot higher if needed be.
|
|
*/
|
|
|
|
#define NMI_LOCAL_SHIFT 16 /* randomly picked */
|
|
#define NMI_LOCAL_BIT (1ULL << NMI_LOCAL_SHIFT)
|
|
#define NMI_HIGH_PRIOR (1ULL << 8)
|
|
#define NMI_NORMAL_PRIOR (1ULL << 4)
|
|
#define NMI_LOW_PRIOR (1ULL << 0)
|
|
#define NMI_LOCAL_HIGH_PRIOR (NMI_LOCAL_BIT | NMI_HIGH_PRIOR)
|
|
#define NMI_LOCAL_NORMAL_PRIOR (NMI_LOCAL_BIT | NMI_NORMAL_PRIOR)
|
|
#define NMI_LOCAL_LOW_PRIOR (NMI_LOCAL_BIT | NMI_LOW_PRIOR)
|
|
|
|
void stop_nmi(void);
|
|
void restart_nmi(void);
|
|
|
|
#endif /* _ASM_X86_NMI_H */
|