drm_pagemap_reinit(9)

💅 drm_pagemap_reinit(9) — reinit that pagemap, bestie

okay so this is a page from the Kernel API Manual, and it's about drm_pagemap_reinit ✨ it's short, it's sweet, it's giving "one job and it does it." let's get into it 🫶

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🌸 NAME 🌸

drm_pagemap_reinit — Reinitialize a drm_pagemap 🎀

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✨ SYNOPSIS ✨

int drm_pagemap_reinit (struct drm_pagemap *dpagemap );

like yes that's the whole signature, she's compact 💅

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🦋 ARGUMENTS 🦋

• dpagemap — the drm_pagemap you're reinitializing. that's it. that's the argument. the main character of this function, fr fr 👑

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🔥 DESCRIPTION 🔥

So you're reinitializing a drm_pagemap — but listen, only one where drm_pagemap_release has already been called. that's the vibe check, don't skip it 🙈

This interface is literally intended for the situation where the driver caches a destroyed drm_pagemap. like the driver held onto it instead of letting it go, and now it wants to bring it back to life. reanimation arc, iconic behavior 🧚✨

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💀 RETURN 💀

• 0 on success 🎉
• a negative error code on failure 😭

no cap, that's the whole return contract.

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🌈 SEE ALSO 🌈

okay this list is long long, so buckle up bestie — here's the whole squad, everybody gets named, no one gets left out 💜

• Kernel file ./drivers/gpu/drm/drm_pagemap.c
• Overview(9)
• Migration(9)
• struct drm_pagemap_zdd(9)
• drm_pagemap_zdd_alloc(9)
• drm_pagemap_zdd_get(9)
• drm_pagemap_zdd_destroy(9)
• drm_pagemap_zdd_put(9)
• drm_pagemap_migration_unlock_put_folio(9)
• drm_pagemap_migration_unlock_put_pages(9)
• drm_pagemap_get_devmem_page(9)
• drm_pagemap_migrate_map_device_private_pages(9)
• struct drm_pagemap_iova_state(9)
• drm_pagemap_migrate_map_system_pages(9)
• drm_pagemap_migrate_populate_src_pages(9)
• drm_pagemap_migrate_unmap_pages(9)
• struct migrate_range_loc(9)
• drm_pagemap_cpages(9)
• drm_pagemap_migrate_to_devmem(9)
• drm_pagemap_migrate_populate_ram_pfn(9)
• struct drm_pagemap_dev_hold(9)
• drm_pagemap_init(9)
• drm_pagemap_put(9)
• drm_pagemap_page_get_flags(9)
• drm_pagemap_page_set_flags(9)
• drm_pagemap_retire_migrated_pages(9)
• drm_pagemap_skip_retired_pages(9)
• drm_pagemap_evict_to_ram(9)
• __drm_pagemap_migrate_to_ram(9)
• drm_pagemap_folio_free(9)
• drm_pagemap_migrate_to_ram(9)
• drm_pagemap_pagemap_ops_get(9)
• drm_pagemap_devmem_init(9)
• drm_pagemap_page_to_dpagemap(9)
• drm_pagemap_populate_mm(9)

like I said. the whole squad. ate 💅

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fr fr go read drm_pagemap_release first if you haven't, because reinit without a prior release is not the move 👀

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and that's the page, bestie — brought to you by ./drivers/gpu/drm, dated October 2026, in the drm_pagemap_reinit(9) era 🎀 stay hydrated, read your kernel docs, mwah 💖