xe_ggtt_largest_hole(9)

πŸ“¦ version 7.3.1, in nixpkgs unstable

🌸 xe_ggtt_largest_hole(9) β€” from the Kernel API Manual πŸ’…

okay bestie, gather round, because we're about to find the biggest hole in the Global Graphics Translation Table and honestly? iconic behavior. this page lives in the Kernel API Manual (section 9, very official, very demure) and it's all about one little function that goes looking for the largest continuous stretch of GGTT real estate. no cap, it's giving "find the biggest empty parking spot in the lot" energy. πŸŽ€


✨ NAME ✨

xe_ggtt_largest_hole β€” literally: Largest GGTT hole. that's it, that's the whole name, and she ate. πŸ’–


πŸ¦‹ SYNOPSIS πŸ¦‹

u64 xe_ggtt_largest_hole (struct xe_ggtt *ggtt , u64 alignment , u64
*spare );

like, look at her. three params, one u64 return, zero notes. main character function behavior only. πŸ‘‘


🌈 ARGUMENTS 🌈

  • ggtt β€” the struct xe_ggtt that will be inspected πŸ‘€ like, this is the thing we're snooping through. it's the GGTT in question, the one getting the vibe check.
  • alignment β€” minimum alignment πŸ”’ the smallest alignment you'll accept for the hole, so we're not out here accepting some off-grid nonsense.
  • spare β€” if not NULL: in: desired memory size to be spared / out: Adjusted possible spare 🫢 so it's a two-way street, bestie β€” you tell it how much you want to spare going in, and it tells you the adjusted possible spare coming out. it's giving "input/output param" and honestly we love a multitasker. if you pass NULL, well, that's on you, no spare info for you.

⭐ RETURN ⭐

the size of the largest continuous GGTT region πŸ”₯ that's the whole return value. biggest. continuous. region. periodt. πŸ’…


🧚 SEE ALSO 🧚

so there's kind of a whole friend group here, and we are not leaving anyone out β€” every single one of these gets their moment:

like, the whole squad. the entire group chat. iykyk πŸ’œ


⚠️ friendly reminder bestie: everything above is straight from the page, no invented lore, no extra tips, no guessing at behavior. we keep the facts exactly as they are and just serve them with better lighting. πŸ’€

and that's the page!! πŸ“ brought to you by the source ./drivers/gpu/drm/xe, dated October 2026, and filed under xe_ggtt_largest_hole(9) β€” mwah, slay, go find that largest hole bestie, you've got this πŸ«Άβœ¨πŸŽ€

πŸ“¦ where this page comes from