Does AMD have plans to support "zero copy" using CL_MEM_USE_PERSISTENT_MEM_AMD for Linux? The documentation says this is only supported on Windows. If AMD has plans to support this, when can we expect it?
It is supported when VM is supported. Currently, that means on HD79xx only. You can tell if VM is supported by checking clinfo as the driver version will report VM.
Driver version: CAL 1.4.1695 (VM)