ttm_lru_item_to_res(9)

💅 ttm_lru_item_to_res — the kernel API manual, bestie edition ✨

okay so real quick, before anything else: this whole page is from the Kernel API Manual, and the function we're obsessing over today is literally called ttm_lru_item_to_res. yes it's a mouthful. no we're not changing it. periodt 🌈

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✨ NAME ✨

ttm_lru_item_to_res — downcast a struct ttm_lru_item to a struct ttm_resource 🫶

like, you hand it the little embedded thing, it hands you back the big thing it's chillin' inside. that's the whole gig. iykyk.

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🌸 SYNOPSIS 🌸

struct ttm_resource * ttm_lru_item_to_res (struct ttm_lru_item *item );

literally one call. one argument. one pointer back. we love a low-effort icon 👑

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🎀 ARGUMENTS 🎀

• item — the struct ttm_lru_item you wanna downcast, babe. that's it, that's the whole input. just point it at the item and let the function cook 🍓

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💖 RETURN 💖

a pointer to the embedding struct ttm_resource ✨ — the bigger struct that your item is nested inside, no cap. it's giving "found my person" energy fr fr.

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🦋 SEE ALSO 🦋

bestie. buckle up. the lore is DEEP on this one 😭 the kernel file <cyan>./include/drm/ttm/ttm_resource.h</cyan> is where all the receipts live, and here's the full extended universe:

• TTM_NUM_MOVE_FENCES(9)
• enum ttm_lru_item_type(9)
• struct ttm_lru_item(9)
• ttm_lru_item_init(9)
• struct ttm_resource_manager(9)
• struct ttm_bus_placement(9)
• struct ttm_resource(9)
• struct ttm_lru_bulk_move_pos(9)
• struct ttm_lru_bulk_move(9)
• struct ttm_resource_cursor(9)
• struct ttm_kmap_iter_iomap(9)
• struct ttm_kmap_iter_linear_io(9)
• ttm_resource_manager_set_used(9)
• ttm_resource_manager_used(9)
• ttm_resource_manager_cleanup(9)
• ttm_resource_manager_for_each_res(9)

ngl you could lose a whole afternoon in there. hydration check first though 🧚💜

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okay that's the page 🎀 sourced straight from <purple>./include/drm/ttm</purple> and dated October 2026 — so mark your calendar, screenshot this, send it to the group chat, and go downcast responsibly. mwah 💋