CONFIG_MIPS_CMP is not available for thedefaultarchitecture x86.
Result is shown for architecture mips
default or selected kernelversion does not have config value CONFIG_MIPS_CMP.
Result is shown for kernelversion 6.9.9

MIPS CMP framework support (DEPRECATED)

modulename: malta-amon.ko

and/or

smp-cmp.ko

configname: CONFIG_MIPS_CMP

Linux Kernel Configuration
└─>Kernel type
└─>MIPS CMP framework support (DEPRECATED)
In linux kernel since version 2.6.26 (release Date: 2008-07-13)  
Select this if you are using a bootloader which implements the "CMP
framework" protocol (ie. YAMON) and want your kernel to make use of
its ability to start secondary CPUs.

Unless you have a specific need, you should use CONFIG_MIPS_CPS
instead of this.

source code: