config DRM_AMDGPU_CIK bool "Enable amdgpu support for CIK parts" depends on DRM_AMDGPU help Choose this option if you want to enable experimental support for CIK asics. CIK is already supported in radeon. CIK support in amdgpu is for experimentation and testing. config DRM_AMDGPU_USERPTR bool "Always enable userptr write support" depends on DRM_AMDGPU select MMU_NOTIFIER help This option selects CONFIG_MMU_NOTIFIER if it isn't already selected to enabled full userptr support.