CONFIG_PIN_TLB is not available for thedefaultarchitecture x86.
Result is shown for architecture ppc

Pinned Kernel TLBs (860 ONLY)

configname: CONFIG_PIN_TLB

Linux/PowerPC Kernel Configuration
└─>Advanced setup
└─>Pinned Kernel TLBs (860 ONLY)
In linux kernel since version 2.6.15 (release Date: 2006-01-02)