kernelconfig_penguin
CONFIG_ARC_DSP_AGU_USERSPACE is not available for the default architecture x86.
Result is shown for architecture arc

Support DSP with AGU for userspace apps

configname: CONFIG_ARC_DSP_AGU_USERSPACE

DSP support
└─> Support DSP with AGU for userspace apps

DSP and AGU extensions presence in HW, support save / restore DSP
and AGU registers to run DSP-enabled userspace applications