HXG BUSY(9)

✨ HXG Busy(9) ✨

okay bestie, this is the HXG Busy(9) page from the Kernel API Manual 🫶 and it’s short but iconic: the HXG Busy message may be used to acknowledge reception of the HXG Request message when the recipient expects that its processing will take longer than the default timeout. ⏳

and yes: the COUNTER field may be used as a progress indicator — little “still cooking, don’t panic” energy, iykyk 💅

the bits table says Bits / Description, and it lays things out like this, no cap 🎀

• 0 / 31 → ORIGIN
• 30:28 → TYPE = GUC_HXG_TYPE_NO_RESPONSE_BUSY_
• 27:0 → COUNTER — progress indicator

👀 SEE ALSO 👀

go look at these, bestie:

• Kernel file ./drivers/gpu/drm/xe/abi/guc_messages_abi.h
• HXG Message(9)
• HXG Request(9)
• HXG Fast Request(9)
• HXG Event(9)
• HXG Retry(9)
• HXG Failure(9)
• HXG Response(9)

mwah 💋 this little page lives in ./drivers/gpu/drm/xe/abi, dated October 2026. periodt. 🌈