Non-functional NPU Support on Dragon Q6A (QCS6490) under Ubuntu 24.04 (Noble)

[Dual-O]

@yarkinsen

• Your workload is static-graph CNN/ViT. Rahul007 was on the same 6.18.2 kernel running llama.cpp with a 2B model and hit DMA allocation failures. So “the NPU works” may currently hold for a fairly specific model class, which seems worth stating plainly.

I think @Rahul007 has confirmed that it is working here