CONFIG_CPU_LOONGSON3_WORKAROUNDS is not available for thedefaultarchitecture x86.
Result is shown for architecture mips

Loongson-3 LLSC Workarounds

configname: CONFIG_CPU_LOONGSON3_WORKAROUNDS

CPU type
└─>Loongson-3 LLSC Workarounds
In linux kernel since version 4.14.326 (release Date: 2023-09-23)  
Loongson-3 processors have the llsc issues which require workarounds.
Without workarounds the system may hang unexpectedly.

Say Y, unless you know what you are doing.