CONFIG_ARC_HAS_GRTC is not available for thedefaultarchitecture x86.
Result is shown for architecture arc
default or selected kernelversion does not have config value CONFIG_ARC_HAS_GRTC.
Result is shown for kernelversion 5.4.229

SMP synchronized 64-bit cycle counter

configname: CONFIG_ARC_HAS_GRTC

Linux Kernel Configuration
└─>ARC Architecture Configuration
└─>ARC CPU Configuration
└─>SMP synchronized 64-bit cycle counter
In linux kernel since version 4.2 (release Date: 2015-08-30)