CONFIG_CPU_R3K_TLB is not available for thedefaultarchitecture x86.
Result is shown for architecture mips

CONFIG_CPU_R3K_TLB (not configurable)

modulename: tlb-r3k.ko

configname: CONFIG_CPU_R3K_TLB

Linux Kernel Configuration
└─>Kernel type
└─>CPU_R3K_TLB
In linux kernel since version 4.14.326 (release Date: 2023-09-23)  
source code:
arch/mips/mm/tlb-r3k.c