LCOV - code coverage report
Current view: top level - include/linux - nmi.h (source / functions) Hit Total Coverage
Test: coverage.info Lines: 1 1 100.0 %
Date: 2017-01-25 Functions: 0 0 -

          Line data    Source code
       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             : #ifdef ARCH_HAS_NMI_WATCHDOG
      18             : #include <asm/nmi.h>
      19             : extern void touch_nmi_watchdog(void);
      20             : extern void acpi_nmi_disable(void);
      21             : extern void acpi_nmi_enable(void);
      22             : #else
      23             : static inline void touch_nmi_watchdog(void)
      24             : {
      25             :         touch_softlockup_watchdog();
      26             : }
      27             : static inline void acpi_nmi_disable(void) { }
      28             : static inline void acpi_nmi_enable(void) { }
      29             : #endif
      30             : 
      31             : /*
      32             :  * Create trigger_all_cpu_backtrace() out of the arch-provided
      33             :  * base function. Return whether such support was available,
      34             :  * to allow calling code to fall back to some other mechanism:
      35             :  */
      36             : #ifdef arch_trigger_all_cpu_backtrace
      37             : static inline bool trigger_all_cpu_backtrace(void)
      38             : {
      39             :         arch_trigger_all_cpu_backtrace();
      40             : 
      41             :         return true;
      42             : }
      43           1 : #else
      44             : static inline bool trigger_all_cpu_backtrace(void)
      45             : {
      46             :         return false;
      47             : }
      48             : #endif
      49             : 
      50             : #endif

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