i915_ttm_move_notify(9)

💅 i915_ttm_move_notify(9) — the Kernel API Manual moment 🎀

okay bestie, welcome to the <pink>Kernel API Manual</pink> ✨ — this one's about i915_ttm_move_notify, and ngl it's a lil function with a big job. 🫶

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🌸 NAME 🌸

i915_ttm_move_notify — bestie, it literally prepares an object for a move. that's the whole vibe. 💫

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🦋 SYNOPSIS 🦋

int i915_ttm_move_notify (struct ttm_buffer_object *bo );

like, that's it. one argument, one int back, main character energy. 👑

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⭐ ARGUMENTS ⭐

• bo — the ttm buffer object. yes the WHOLE buffer object, she's the guest of honor at this party 🎀

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🔥 DESCRIPTION 🔥

so what does she actually DO? okay so listen up:

This function prepares an object for move by:

• removing all GPU bindings 👋
• removing all CPU mappings 🧹
• and finally, releasing the pages sg-table 📄✨

it's giving "clear the decks before the big move" and honestly? obsessed. the way she just unbinds everything so the object can travel light. 🧚💜

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🌈 RETURN 🌈

• 0 if it slayed (successful) ✅
• a negative error code on error 😭 — so like, if you see a negative number, something went sideways, no cap.

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🍓 SEE ALSO 🍓

• Kernel file ./drivers/gpu/drm/i915/gem/i915_gem_ttm_move.c — go read the source, iykyk 📖
• Selftest failure modes for failsafe migration:(9) 🧪
• i915_ttm_adjust_domains_after_move(9) 🌀
• i915_ttm_adjust_gem_after_move(9) 🌸
• struct i915_ttm_memcpy_arg(9) 📦
• struct i915_ttm_memcpy_work(9) 🛠️
• i915_ttm_move(9) 🚚
• i915_gem_obj_copy_ttm(9) 📋

like, the whole friend group fr fr 🫶

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lowkey reminder: this whole page lives in ./drivers/gpu/drm/i915/gem — don't @ me, that's just where she's at 💀

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and that's the tea, bestie 🍵 — this lil page is dated October 2026, ships out of ./drivers/gpu/drm/i915/gem, and it's brought to you by the Kernel API Manual. mwah 💋✨ stay slay, stay bound (until you gotta move) 💖