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| author | Colin Cross <ccross@android.com> | 2011-09-25 19:56:53 -0700 |
|---|---|---|
| committer | Colin Cross <ccross@android.com> | 2011-09-25 19:59:49 -0700 |
| commit | 62fc97640e032c0e5eeff026cfba18dcf9a0ea86 (patch) | |
| tree | 1f7c689d5c1b0c2d62a7a1086c426a201e6f92d7 /arch/arm/include/asm | |
| parent | 65e4c72b3cf5d0999344e32c51492a5fdd136006 (diff) | |
| download | kernel_samsung_tuna-62fc97640e032c0e5eeff026cfba18dcf9a0ea86.zip kernel_samsung_tuna-62fc97640e032c0e5eeff026cfba18dcf9a0ea86.tar.gz kernel_samsung_tuna-62fc97640e032c0e5eeff026cfba18dcf9a0ea86.tar.bz2 | |
ARM: add touch_nmi_watchdog
Add touch_nmi_watchdog, which gets called during long operations
with interrupts off like sysrq-t. Call an atomic notifier chain,
which can pet the watchdog if necessary.
Change-Id: I1c7ba5230a2cca54625a089085d479a4758ce9be
Signed-off-by: Colin Cross <ccross@android.com>
Diffstat (limited to 'arch/arm/include/asm')
| -rw-r--r-- | arch/arm/include/asm/irq.h | 2 | ||||
| -rw-r--r-- | arch/arm/include/asm/nmi.h | 14 |
2 files changed, 16 insertions, 0 deletions
diff --git a/arch/arm/include/asm/irq.h b/arch/arm/include/asm/irq.h index 2721a58..904d0d2 100644 --- a/arch/arm/include/asm/irq.h +++ b/arch/arm/include/asm/irq.h @@ -3,6 +3,8 @@ #include <mach/irqs.h> +#define ARCH_HAS_NMI_WATCHDOG + #ifndef irq_canonicalize #define irq_canonicalize(i) (i) #endif diff --git a/arch/arm/include/asm/nmi.h b/arch/arm/include/asm/nmi.h new file mode 100644 index 0000000..3cf8bdf --- /dev/null +++ b/arch/arm/include/asm/nmi.h @@ -0,0 +1,14 @@ +#ifndef __ASM_ARM_NMI_H_ +#define __ASM_ARM_NMI_H_ + +#include <linux/notifier.h> + +extern struct atomic_notifier_head touch_watchdog_notifier_head; + +static inline void touch_nmi_watchdog(void) +{ + atomic_notifier_call_chain(&touch_watchdog_notifier_head, 0, 0); + touch_softlockup_watchdog(); +} + +#endif /* __ASM_ARM_NMI_H_ */ |