ttm_pool_restore_and_alloc(9)

💖 ttm_pool_restore_and_alloc 💖

okay so bestie, welcome to the Kernel API Manual ✨ — yes, that's the manual we're in, and today's main character is ttm_pool_restore_and_alloc. She's a function. She fills things. She restores things. Let's get into it 🫶

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🌸 NAME 🌸

ttm_pool_restore_and_alloc — literally what it says on the tin: fill a ttm_tt, and while you're at it, restore content that was previously backed up. 💅

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✨ SYNOPSIS ✨

int ttm_pool_restore_and_alloc (struct ttm_pool *pool , struct ttm_tt
*tt , const struct ttm_operation_ctx *ctx );

that's the whole vibe check right there — three args, one int coming back at you 🎀

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🦋 ARGUMENTS 🦋

• pool — the ttm_pool to use. like, the pool she's swimming in 🏊‍♀️
• tt — the ttm_tt object to fill. this is the thing getting stuffed with goodies.
• ctx — the operation context. the ~situationship~ context, if you will 🙈

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💜 DESCRIPTION 💜

so here's the tea, bestie ☕: this function fills the ttm_tt object with pages, and it also makes sure to DMA map them when necessary. no cap, both jobs. and on top of all that? she reads in the backed-up content 📥✨

it's giving "restoration era" and honestly? obsessed.

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⭐ RETURN ⭐

• 0 on successe (that's the source's spelling, not mine, we love her anyway 😭💖)
• a negative error code otherwise 💀

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🌈 SEE ALSO 🌈

• Kernel file ./drivers/gpu/drm/ttm/ttm_pool.c
• struct ttm_pool_dma(9)
• struct ttm_pool_alloc_state(9)
• struct ttm_pool_tt_restore(9)
• Partial backup and restoration of a struct ttm_tt.(9)
• ttm_pool_free_range(9)
• ttm_pool_alloc(9)
• ttm_pool_free(9)
• ttm_pool_drop_backed_up(9)
• ttm_pool_backup(9)
• ttm_pool_init(9)
• ttm_pool_synchronize_shrinkers(9)
• ttm_pool_fini(9)
• ttm_pool_debugfs(9)
• ttm_pool_mgr_init(9)
• ttm_pool_mgr_fini(9)

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okay that's the whole page, bestie, go forth and restore 👑✨ this lil number lives over in ./drivers/gpu/drm/ttm, dated October 2026 — mwah, stan her, bye 💋🎀