CONFIG_HARDLOCKUP_DETECTOR_SPARC64 is not available for thedefaultarchitecture x86.
Result is shown for architecture sparc

CONFIG_HARDLOCKUP_DETECTOR_SPARC64 (not configurable)

configname: CONFIG_HARDLOCKUP_DETECTOR_SPARC64

Linux Kernel Configuration
└─>HARDLOCKUP_DETECTOR_SPARC64
In linux kernel since version 4.14.326 (release Date: 2023-09-23)