CONFIG_ARC_DCCM_SZ is not available for the default architecture x86.
Result is shown for architecture arc
default or selected kernelversion does not have config value CONFIG_ARC_DCCM_SZ.
Result is shown for kernelversion 6.0-rc7

DCCM Size in KB

configname: CONFIG_ARC_DCCM_SZ

Linux Kernel Configuration
└─> ARC Architecture Configuration
└─> ARC CPU Configuration
└─> DCCM Size in KB