CONFIG_ARC_CPU_750D is not available for thedefaultarchitecture x86.
Result is shown for architecture arc
default or selected kernelversion does not have config value CONFIG_ARC_CPU_750D.
Result is shown for kernelversion 6.9.9
ARC750D
configname: CONFIG_ARC_CPU_750D
ARC Core
└─>ARC750D
In linux kernel since version 3.1 (release Date: 2011-10-24)
Support for ARC750 core