CONFIG_MACH_HARMONY is not available for thedefaultarchitecture x86.
Result is shown for architecture arm
default or selected kernelversion does not have config value CONFIG_MACH_HARMONY.
Result is shown for kernelversion 6.2.5

Harmony board

modulename: board-harmony.ko

and/or

board-harmony-pinmux.ko

and/or

board-harmony-pcie.ko

and/or

board-harmony-power.ko

configname: CONFIG_MACH_HARMONY

Linux Kernel Configuration
└─>Harmony board
In linux kernel since version 2.6.36 (release Date: 2010-10-20)  
Support for nVidia Harmony development platform

source code: