xe_lmtt_prepare_pages(9)

💖 xe_lmtt_prepare_pages(9) — Kernel API Manual 💖

okay so bestie, this is the xe_lmtt_prepare_pages page from the Kernel API Manual, and it's literally giving “let’s make some LMTT page tables for a VF” energy. no cap.

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✨ NAME ✨

xe_lmtt_prepare_pages — Create VF's LMTT Page Tables.

🌸 SYNOPSIS 🌸

int xe_lmtt_prepare_pages (struct xe_lmtt *lmtt , unsigned int vfid ,
       u64 range );

🎀 ARGUMENTS 🎀

• lmtt — the xe_lmtt to update. that’s the main character struct, periodt.
• vfid — the VF identifier (1-based). yes, we’re counting from 1, bestie.
• range — top range of LMEM offset to be supported. it’s the ceiling, the limit, the “how far are we going” vibes.

🦋 DESCRIPTION 🦋

okay so what this function does is create empty LMTT page tables for the given VF, so it can support up to maximum #range LMEM offset. it’s giving “setting up the scaffolding” energy, fr fr.

the LMTT page tables created by this function must be released using the xe_lmtt_drop_pages function. like, do not just leave them lying around — that’s not the vibe.

💅 NOTES 💅

🚨 vibe check: this function shall be called only after successful LMTT initialization. See xe_lmtt_init.

⭐ RETURN ⭐

0 on success or a negative error code on failure. slay when it works, negative error code when it doesn’t. 😭

🌈 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_populate_pages(9)
• xe_lmtt_drop_pages(9)
• xe_lmtt_estimate_pt_size(9)

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made with 💖 from source/version ./drivers/gpu/drm/xe, dated October 2026, and the page is xe_lmtt_prepare_pages(9) — byeee, go build those page tables responsibly 🧚✨