CONFIG_ARCH_HAS_DMA_PREP_COHERENT (not configurable)

configname: CONFIG_ARCH_HAS_DMA_PREP_COHERENT

Linux Kernel Configuration
└─>Library routines
└─>ARCH_HAS_DMA_PREP_COHERENT
In linux kernel since version 5.1 (release Date: 2019-05-05)  
is depended by
CONFIG_NOT_COHERENT_CACHE