mmc: core: SDXC speed class support
[linux-2.6.git] / include / linux / nmi.h
1 /*
2  *  linux/include/linux/nmi.h
3  */
4 #ifndef LINUX_NMI_H
5 #define LINUX_NMI_H
6
7 #include <linux/sched.h>
8 #include <asm/irq.h>
9
10 /**
11  * touch_nmi_watchdog - restart NMI watchdog timeout.
12  * 
13  * If the architecture supports the NMI watchdog, touch_nmi_watchdog()
14  * may be used to reset the timeout - for code which intentionally
15  * disables interrupts for a long time. This call is stateless.
16  */
17 #if defined(ARCH_HAS_NMI_WATCHDOG) || defined(CONFIG_HARDLOCKUP_DETECTOR)
18 #include <asm/nmi.h>
19 extern void touch_nmi_watchdog(void);
20 #else
21 static inline void touch_nmi_watchdog(void)
22 {
23         touch_softlockup_watchdog();
24 }
25 #endif
26
27 /*
28  * Create trigger_all_cpu_backtrace() out of the arch-provided
29  * base function. Return whether such support was available,
30  * to allow calling code to fall back to some other mechanism:
31  */
32 #ifdef arch_trigger_all_cpu_backtrace
33 static inline bool trigger_all_cpu_backtrace(void)
34 {
35         arch_trigger_all_cpu_backtrace();
36
37         return true;
38 }
39 #else
40 static inline bool trigger_all_cpu_backtrace(void)
41 {
42         return false;
43 }
44 #endif
45
46 #ifdef CONFIG_LOCKUP_DETECTOR
47 int hw_nmi_is_cpu_stuck(struct pt_regs *);
48 u64 hw_nmi_get_sample_period(int watchdog_thresh);
49 extern int watchdog_enabled;
50 extern int watchdog_thresh;
51 struct ctl_table;
52 extern int proc_dowatchdog(struct ctl_table *, int ,
53                            void __user *, size_t *, loff_t *);
54 #endif
55
56 #endif