CONFIG_ARC_MMU_V2 is not available for thedefaultarchitecture x86.
Result is shown for architecture arc
default or selected kernelversion does not have config value CONFIG_ARC_MMU_V2.
Result is shown for kernelversion 6.7.7

MMU v2

configname: CONFIG_ARC_MMU_V2

MMU Version
└─>MMU v2
In linux kernel since version 3.1 (release Date: 2011-10-24)  
Fixed the deficiency of v1 - possible thrashing in memcpy scenario
when 2 D-TLB and 1 I-TLB entries index into same 2way set.