CONFIG_TILEGX is not available for thedefaultarchitecture x86.
Result is shown for architecture tile
default or selected kernelversion does not have config value CONFIG_TILEGX.
Result is shown for kernelversion 6.7-rc3

CONFIG_TILEGX (not configurable)

configname: CONFIG_TILEGX

Linux Kernel Configuration
└─>TILEGX
In linux kernel since version 2.6.36 (release Date: 2010-10-20)