CONFIG_CMM_PROC is not available for thedefaultarchitecture x86.
Result is shown for architecture s390
default or selected kernelversion does not have config value CONFIG_CMM_PROC.
Result is shown for kernelversion 5.4.194

/proc interface to cooperative memory management

configname: CONFIG_CMM_PROC

Linux Kernel Configuration
└─>Base setup
└─>/proc interface to cooperative memory management
In linux kernel since version 2.6.12  
Select this option to enable the /proc interface to the
cooperative memory management.

depends
CONFIG_CMM