CONFIG_ARC_HAS_LLSC is not available for thedefaultarchitecture x86.
Result is shown for architecture arc
Insn: LLOCK/SCOND (efficient atomic ops)
configname: CONFIG_ARC_HAS_LLSC
Linux Kernel Configuration
└─>ARC Architecture Configuration
└─>ARC CPU Configuration
└─>Insn: LLOCK/SCOND (efficient atomic ops)