From 9ca8dbcc65cfc63d6f5ef3312a33184e1d726e00 Mon Sep 17 00:00:00 2001 From: Yunhong Jiang Date: Tue, 4 Aug 2015 12:17:53 -0700 Subject: Add the rt linux 4.1.3-rt3 as base Import the rt linux 4.1.3-rt3 as OPNFV kvm base. It's from git://git.kernel.org/pub/scm/linux/kernel/git/rt/linux-rt-devel.git linux-4.1.y-rt and the base is: commit 0917f823c59692d751951bf5ea699a2d1e2f26a2 Author: Sebastian Andrzej Siewior Date: Sat Jul 25 12:13:34 2015 +0200 Prepare v4.1.3-rt3 Signed-off-by: Sebastian Andrzej Siewior We lose all the git history this way and it's not good. We should apply another opnfv project repo in future. Change-Id: I87543d81c9df70d99c5001fbdf646b202c19f423 Signed-off-by: Yunhong Jiang --- kernel/include/linux/nmi.h | 86 ++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 86 insertions(+) create mode 100644 kernel/include/linux/nmi.h (limited to 'kernel/include/linux/nmi.h') diff --git a/kernel/include/linux/nmi.h b/kernel/include/linux/nmi.h new file mode 100644 index 000000000..3d46fb470 --- /dev/null +++ b/kernel/include/linux/nmi.h @@ -0,0 +1,86 @@ +/* + * linux/include/linux/nmi.h + */ +#ifndef LINUX_NMI_H +#define LINUX_NMI_H + +#include +#include + +/** + * touch_nmi_watchdog - restart NMI watchdog timeout. + * + * If the architecture supports the NMI watchdog, touch_nmi_watchdog() + * may be used to reset the timeout - for code which intentionally + * disables interrupts for a long time. This call is stateless. + */ +#if defined(CONFIG_HAVE_NMI_WATCHDOG) || defined(CONFIG_HARDLOCKUP_DETECTOR) +#include +extern void touch_nmi_watchdog(void); +#else +static inline void touch_nmi_watchdog(void) +{ + touch_softlockup_watchdog(); +} +#endif + +#if defined(CONFIG_HARDLOCKUP_DETECTOR) +extern void hardlockup_detector_disable(void); +#else +static inline void hardlockup_detector_disable(void) +{ +} +#endif + +/* + * Create trigger_all_cpu_backtrace() out of the arch-provided + * base function. Return whether such support was available, + * to allow calling code to fall back to some other mechanism: + */ +#ifdef arch_trigger_all_cpu_backtrace +static inline bool trigger_all_cpu_backtrace(void) +{ + arch_trigger_all_cpu_backtrace(true); + + return true; +} +static inline bool trigger_allbutself_cpu_backtrace(void) +{ + arch_trigger_all_cpu_backtrace(false); + return true; +} +#else +static inline bool trigger_all_cpu_backtrace(void) +{ + return false; +} +static inline bool trigger_allbutself_cpu_backtrace(void) +{ + return false; +} +#endif + +#ifdef CONFIG_LOCKUP_DETECTOR +int hw_nmi_is_cpu_stuck(struct pt_regs *); +u64 hw_nmi_get_sample_period(int watchdog_thresh); +extern int nmi_watchdog_enabled; +extern int soft_watchdog_enabled; +extern int watchdog_user_enabled; +extern int watchdog_thresh; +extern int sysctl_softlockup_all_cpu_backtrace; +struct ctl_table; +extern int proc_watchdog(struct ctl_table *, int , + void __user *, size_t *, loff_t *); +extern int proc_nmi_watchdog(struct ctl_table *, int , + void __user *, size_t *, loff_t *); +extern int proc_soft_watchdog(struct ctl_table *, int , + void __user *, size_t *, loff_t *); +extern int proc_watchdog_thresh(struct ctl_table *, int , + void __user *, size_t *, loff_t *); +#endif + +#ifdef CONFIG_HAVE_ACPI_APEI_NMI +#include +#endif + +#endif -- cgit 1.2.3-korg