CONFIG_CPU_CACHE_V4WT is not available for thedefaultarchitecture x86.
Result is shown for architecture arm

CONFIG_CPU_CACHE_V4WT (not configurable)

modulename: cache-v4wt.ko

configname: CONFIG_CPU_CACHE_V4WT

Linux Kernel Configuration
└─>CPU_CACHE_V4WT
In linux kernel since version 2.6.12  
source code:
is depended by
CONFIG_CPU_ARM1020E