intel_regio...source_alloc(9)

📦 version 7.3.1, in nixpkgs unstable

🦋 intel_regio...source_alloc(9) — like, the Kernel API Manual page, bestie 🎀

okay so. welcome to the group chat. this is a page from the Kernel API Manual, and yes the title is literally intel_regio...source_alloc(9) — it's abbreviated, it's mysterious, it's giving cryptic icon energy. we move.

✨ NAME ✨

intel_region_ttm_resource_alloc — Allocate memory resources from a region 💖

like, that's the whole gig. it goes and gets you memory resources out of a region. slay.

🌸 SYNOPSIS 🌸

struct ttm_resource * intel_region_ttm_resource_alloc (struct
intel_memory_region *mem , resource_size_t offset , resource_size_t size
, unsigned int flags );

that's the signature, copy it exactly, do not freestyle it, i'm serious 🙈

💅 ARGUMENTS 💅

  • mem — The memory region. like, which region you're pulling from. your main character region, if you will.
  • offset — BO offset. that's it. that's the whole description. iconic minimalism.
  • size — The requested size in bytes. how much you want. be normal about it.
  • flags — Allocation flags. the little toggles that tell the allocator how to behave ✨

🔥 DESCRIPTION 🔥

okay so this is the important part, pay attention, no cap.

This functionality is provided only for callers that need to allocate memory from standalone TTM range managers, without the TTM eviction functionality.

⚠️ Don't use if you are not completely sure that's the case. like genuinely. if you're sitting there going "hmm, am i sure?" — you are not sure. do not use. i'm being so serious right now 😭

The returned opaque node can be converted to an sg_table using intel_region_ttm_resource_to_st, and can be freed using intel_region_ttm_resource_free. ur opaque little node has a glow-up path and a goodbye path, we love a full lifecycle 🫶

⭐ RETURN ⭐

  • A valid pointer on success 💖
  • An error pointer on failure 💀

that's the vibe check. you either get the pointer or you get the error pointer. there is no third option, periodt.

🌈 SEE ALSO 🌈

Kernel file ./drivers/gpu/drm/i915/intel_region_ttm.c — go read the source babe, it's right there 👑

it's giving ttm resource allocator realness 💅

and that's the page!! mwah 💋

xoxo, your girl, signing off from ./drivers/gpu/drm/i915, dated October 2026, version intel_regio...source_alloc(9) 🧚💜

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