diff options
Diffstat (limited to 'arch/Kconfig')
| -rw-r--r-- | arch/Kconfig | 23 |
1 files changed, 17 insertions, 6 deletions
diff --git a/arch/Kconfig b/arch/Kconfig index 422f0ffa269e..77e5af5fda3f 100644 --- a/arch/Kconfig +++ b/arch/Kconfig @@ -404,17 +404,28 @@ config HAVE_NMI_WATCHDOG depends on HAVE_NMI bool help - The arch provides a low level NMI watchdog. It provides - asm/nmi.h, and defines its own watchdog_hardlockup_probe() and - arch_touch_nmi_watchdog(). + The arch provides its own hardlockup detector implementation instead + of the generic ones. + + Sparc64 defines this variable without HAVE_HARDLOCKUP_DETECTOR_ARCH. + It is the last arch-specific implementation which was developed before + adding the common infrastructure for handling hardlockup detectors. + It is always built. It does _not_ use the common command line + parameters and sysctl interface, except for + /proc/sys/kernel/nmi_watchdog. config HAVE_HARDLOCKUP_DETECTOR_ARCH bool select HAVE_NMI_WATCHDOG help - The arch chooses to provide its own hardlockup detector, which is - a superset of the HAVE_NMI_WATCHDOG. It also conforms to config - interfaces and parameters provided by hardlockup detector subsystem. + The arch provides its own hardlockup detector implementation instead + of the generic ones. + + It uses the same command line parameters, and sysctl interface, + as the generic hardlockup detectors. + + HAVE_NMI_WATCHDOG is selected to build the code shared with + the sparc64 specific implementation. config HAVE_PERF_REGS bool |