CONFIG_ARM_CPU_TOPOLOGY is not available for thedefaultarchitecture x86.
Result is shown for architecture arm

Support cpu topology definition

modulename: topology.ko


Linux Kernel Configuration
└─>Kernel Features
└─>Support cpu topology definition
In linux kernel since version 3.1 (release Date: 2011-10-24)  
Support ARM cpu topology definition. The MPIDR register defines
affinity between processors which is then used to describe the cpu
topology of an ARM System.

source code: