CONFIG_ERRATA_THEAD_PBMT is not available for thedefaultarchitecture x86.
Result is shown for architecture riscv or 64BIT

Apply T-Head memory type errata


Linux Kernel Configuration
└─>CPU errata selection
└─>Apply T-Head memory type errata
In linux kernel since version 4.14.326 (release Date: 2023-09-23)  
This will apply the memory type errata to handle the non-standard
memory type bits in page-table-entries on T-Head SoCs.

If you don't know what to do here, say "Y".