panthor_fw_wait_acks(9)

📦 version 7.3.1, in nixpkgs unstable

💜 panthor_fw_wait_acks — kernel API manual, section 9, bestie edition

Okay so picture this: you're in the panthor DRM driver, you've just pinged the firmware, and now you're sitting there like 👁️👄👁️ waiting for it to say "yeah girl, got it." That's literally this function. panthor_fw_wait_acks is the "wait for requests to be acknowledged by the FW" girlie, and she ate. ✨

🌸 NAME 🌸

panthor_fw_wait_acks — wait for requests to be acknowledged by the FW. no cap, that's the whole job 💅

🦋 SYNOPSIS 🦋

int panthor_fw_wait_acks (const u32 *req_ptr , const u32 *ack_ptr ,
wait_queue_head_t *wq , u32 req_mask , u32 *acked , u32 timeout_ms );

🎀 ARGUMENTS 🎀

  • req_ptr — pointer to the req register. the request hangout spot 📍
  • ack_ptr — pointer to the ack register. where the firmware leaves its little "seen ✅" receipts
  • wq — the wait queue to use for the sleeping wait 😴 this is where we nap while we wait
  • req_mask — mask of requests to wait for. which ones are we actually checking for 👀
  • acked — pointer to a field that's updated with the acked requests. and listen: if the function returns 0, then *acked == req_mask — full house, everybody acknowledged, periodt 💯
  • timeout_ms — timeout expressed in milliseconds ⏰ don't wait forever, bestie

⭐ RETURN ⭐

0 on success, -ETIMEDOUT otherwise. that's it, that's the vibe check 😭

fr fr: if you get 0 back, everything in req_mask got acked. anything else means the clock ran out 💀

🌈 SEE ALSO 🌈

Kernel file ./drivers/gpu/drm/panthor/panthor_fw.c, plus the whole friend group:

and that's the page, bestie 🫶 this lil icon lives at ./drivers/gpu/drm/panthor, dated October 2026, and honestly? she's giving documentation main character energy 💖✨🎀🦋🌸

📦 where this page comes from