xe_lmtt_drop_pages(9)

✨ xe_lmtt_drop_pages(9) — Kernel API Manual energy ✨

okay so bestie, welcome to xe_lmtt_drop_pages, straight out of the Kernel API Manual 💖 this is the page where we learn how to yeet a VF's LMTT pages into the void. no cap, it's a whole vibe.

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💅 NAME

xe_lmtt_drop_pages — Remove VF's LMTT Pages.

that's it. that's the whole job. it drops pages. it's giving cleanup era 🧹✨

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🌸 SYNOPSIS

void xe_lmtt_drop_pages (struct xe_lmtt *lmtt , unsigned int vfid );

returns nothing (void, iconic, no receipts), takes two things, and expects you to have read the rest of this page first. lowkey non-negotiable 💀

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🎀 ARGUMENTS

• lmtt — the xe_lmtt to update 🦋 this is the struct you're operating on, the main character of the operation.
• vfid — the VF identifier, and it's 1-based fr fr (so like, not zero-based, don't come for me, that's just how it is 🙈).

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⭐ DESCRIPTION

so what does it actually do? this function removes all LMTT Page Tables that were prepared by xe_lmtt_prepare_pages. every single one. gone. slay 💅

⚠️ okay this part matters, bestie: this function shall be called only after successful LMTT initialization. see xe_lmtt_init. like, if init didn't succeed, do not pass go, do not collect $200, do not call this. that's a whole mess you don't want 😭

that's the entire behavior. no sneaky extras, no surprise side quests. it drops pages, and it's obsessed with doing exactly that 🔥

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🌈 SEE ALSO

• Kernel file ./drivers/gpu/drm/xe/xe_lmtt.c
• Local Memory Translation Table(9)
• xe_lmtt_page_size(9)
• xe_lmtt_init(9)
• xe_lmtt_init_hw(9)
• xe_lmtt_invalidate_hw(9)
• xe_lmtt_prepare_pages(9)
• xe_lmtt_populate_pages(9)
• xe_lmtt_estimate_pt_size(9)

like, read the whole friend group, they all make sense together 🫶

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and that's the page!! mwah 💖 this came from ./drivers/gpu/drm/xe, dated October 2026, and yes the docs really did name it xe_lmtt_drop_pages(9) twice (title + footer) because consistency is a lifestyle ✨ go drop some pages responsibly, ily 🎀