Typedef mem_type_t

typedef enum logic [3:0] {
    DEVICE_NONBUFFERABLE,
    DEVICE_BUFFERABLE,
    NORMAL_NONCACHEABLE_NONBUFFERABLE,
    NORMAL_NONCACHEABLE_BUFFERABLE,
    WTHRU_NOALLOCATE,
    WTHRU_RALLOCATE,
    WTHRU_WALLOCATE,
    WTHRU_RWALLOCATE,
    WBACK_NOALLOCATE,
    WBACK_RALLOCATE,
    WBACK_WALLOCATE,
    WBACK_RWALLOCATE
  } mem_type_t;

Memory Type.