I'm not familiar with mobile / APUs, but I was under the impression that it was still necessary to do clCreateBuffer (or similar). I could only find old slides (https://developer.amd.com/wordpress/media/2013/06/1004_final...), though.

Would you mind pointing me in the right direction to learn about how to do this? (something equivalent to slide 2 of https://www.olcf.ornl.gov/wp-content/uploads/2018/12/summit_... but for mobile/APU)?