With DM6467, How could only I use the DSP side to start the hdvicp arm 968?

Dear all:  

I have a project use with DM6467, and i try to only use dsp side to start the hdvicp arm 968,after i load the code from the dsp to the hdvicp arm 968 ITCM,but i donot know how to drive the hdvicp arm 968 work?

thank you very much!