CONFIG_MIPS_IVR is not available for thedefaultarchitecture x86.
Result is shown for architecture mips
default or selected kernelversion does not have config value CONFIG_MIPS_IVR.
Result is shown for kernelversion 5.4.123

Support for Globespan IVR board

modulename: fixup-ivr.ko

configname: CONFIG_MIPS_IVR

Linux/MIPS Kernel Configuration
└─>Machine selection
└─>Support for Globespan IVR board
In linux kernel since version 2.6.12  
This is an evaluation board built by Globespan to showcase thir
iVR (Internet Video Recorder) design. It utilizes a QED RM5231
R5000 MIPS core. More information can be found out their website
located at <http://www.globespan.net/>. Say Y here if you wish to
build a kernel for this platform.

source code: