how to get descriptor based top with midend and backend

Hello,

I need to integrate a DMA with midend and backend in my project. 

I have cloned the iDMA and run the command make idma_sim_all

Though I cannot find a top which integrate midend and backend. 

Do I need to collected different pieces of iDMA (frontend, backend, and midend) or is it possible to generate a top ?

Thanks in advance for your responses. 

With Best Regards
Tanuj Khandelwal 