drm_pagemap_..._to_dpagemap(9)

💖 NAME 💖

drm_pagemap_page_to_dpagemap — okay so this one hands you back a pointer to the drm_pagemap of a page, bestie ✨ (this is from the Kernel API Manual, drm_pagemap_..._to_dpagemap(9), and it's lowkey iconic 🎀)

🦋 SYNOPSIS 🦋

struct drm_pagemap * drm_pagemap_page_to_dpagemap (struct page *page );

🌸 ARGUMENTS 🌸

• page — the struct page, bestie. that's it. that's the whole vibe 🫶

👑 RETURN 👑

So what you get back is a pointer to the struct drm_pagemap of a device private page that was populated from the struct drm_pagemap. slay 💅

⚠️ But listen — if that page was not populated from a struct drm_pagemap, the result is undefined and the function call may result in dereferencing an invalid address 😭 fr fr do not do this to yourself. the vibe check is not passing. 💀

🧚 SEE ALSO 🧚

Go read the kernel file ./drivers/gpu/drm/drm_pagemap.c first, it's giving main character energy 📖✨ and then literally all of these:

• 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_folio_free(9)
• drm_pagemap_migrate_to_ram(9)
• drm_pagemap_pagemap_ops_get(9)
• drm_pagemap_devmem_init(9)
• drm_pagemap_populate_mm(9)

That's the whole page, no cap 💜 and to send you off: ./drivers/gpu/drm, October 2026, drm_pagemap_..._to_dpagemap(9) — periodt 🎀🌈⭐