drm_pagemap_migrate_to_ram(9)

📦 version 7.3.1, in nixpkgs unstable

💅 drm_pagemap_migrate_to_ram(9) ✨

okay bestie, welcome to the Kernel API Manual — yes that's the manual we're in, and yes this page is about one very specific little function. let's get into it 🫶

🌸 NAME 🌸

drm_pagemap_migrate_to_ram — the function that migrates a virtual range to RAM. it's a page fault handler, and honestly? it's giving cleanup crew energy 💖

✨ SYNOPSIS ✨

vm_fault_t drm_pagemap_migrate_to_ram (struct vm_fault *vmf );

like, that's the whole signature. short, sweet, iconic 👑

🎀 ARGUMENTS 🎀

  • vmf — a pointer to the fault information structure. it's literally the fault info, that's the vibe 🦋

💜 DESCRIPTION 💜

so here's the tea ☕ — this function is a page fault handler, and its whole job is migrating a virtual range to RAM.

and here's the part you cannot miss: the device memory allocation in which the device page is found is migrated in its entirety. not a little piece, not a snack-sized portion — the whole entire allocation. periodt 💅

🔥 RETURN 🔥

  • VM_FAULT_SIGBUS — that's the failure case 😭
  • 0 — and that's the success case, slay 🎉

🌈 SEE ALSO 🌈

the whole friend group, no cap — every single one of these is invited to the group chat:

okay that's the whole page, you ate that 💖 one last lil sign-off: this cutie lives in ./drivers/gpu/drm, and it was dated October 2026 — main character energy fr fr 🌟 byeee 🦋🎀

📦 where this page comes from