https://bugs.freedesktop.org/show_bug.cgi?id=97166
--- Comment #3 from Vedran Miletić vedran@miletic.net --- (In reply to smoki from comment #2)
Mobile Tonga it seems.
Desktop and mobile chip have the same PCI ID, that's why I ask [1]. I might be able to test Batman on my 380X to confirm the issue.
[1] https://pci-ids.ucw.cz/read/PC/1002/6938