drm_pagemap_folio_free(9)

🌈 drm_pagemap_folio_free(9) 🌈

okay bestie, welcome to the Kernel API Manual page for drm_pagemap_folio_free(9) — yes, manual name folded in right here, we're being efficient 💅. This is the callback moment where GPU SVM zone device data gets put when a folio is released. Stay with me, it's short and iconic. ✨

💖 NAME 💖

drm_pagemap_folio_free — put GPU SVM zone device data associated with a folio. literally that's the whole NAME section, and it ate. 💖

✨ SYNOPSIS ✨

void drm_pagemap_folio_free (struct folio *folio );

That's the exact signature, no cap. 🫶

🎀 ARGUMENTS 🎀

• folio — pointer to the folio, bestie. That's it. Just a pointer to the folio. 🎀

💅 DESCRIPTION 💅

This function is a callback 🫶 — used to put the GPU SVM zone device data associated with a page when it is being released. So when the page is getting released, this callback puts that GPU SVM zone device data. periodt. ✨

🦋 SEE ALSO 🦋

iykyk, the whole friend group is here — every single ref, no skips:

• 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_reinit(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_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)

mwah 💋 — source/version: ./drivers/gpu/drm + Kernel API Manual; date: October 2026. bye bestie, go put that folio data away 🫶✨