xe_bo_is_stolen_devmem(9)

📦 version 7.3.1, in nixpkgs unstable

💅 xe_bo_is_stolen_devmem(9) — a Kernel API Manual moment

okay so this is a page from the Kernel API Manual, and it's about the very iconic xe_bo_is_stolen_devmem ✨

🌸 NAME 🌸

xe_bo_is_stolen_devmem — bestie, this one checks whether a BO is the stolen type, aka the kind you get to through the PCI BAR 🎀

✨ SYNOPSIS ✨

bool xe_bo_is_stolen_devmem (struct xe_bo *bo );

like, it takes a BO and hands you back a bool. that's it, that's the whole vibe 🦋

🫶 ARGUMENTS 🫶

  • bo — The BO. literally the buffer object we're doing a vibe check on 💅

💜 DESCRIPTION 💜

so here's the tea ☕: stolen memory gets accessed through the PCI BAR — and that's true for both DGFX and for some integrated platforms that have a dedicated bit in the PTE for devmem (DM). no cap, that's the whole mechanic 🌈

⭐ RETURN ⭐

it gives you true if it's stolen memory accessed via PCI BAR, and false otherwise. simple as that, periodt 💖

🔥 SEE ALSO 🔥

the kernel file is ./drivers/gpu/drm/xe/xe_bo.c, and honestly the whole friend group is here — go say hi 👑

ngl, that's a lot of cross-references, but every single one is real and every single one matters. no skipping, bestie 🍓

so yeah, this page lives under ./drivers/gpu/drm/xe, it's from October 2026, and it ships with the Kernel API Manual — mwah, go read the source, ily, bye 💋🧚‍♀️

📦 where this page comes from