amdgpu_hmm_invalidate_gfx(9)

💅 amdgpu_hmm_invalidate_gfx(9) — the Kernel API Manual, bestie edition

okay so picture this: it's a whole kernel API manual page, and the star of the show is amdgpu_hmm_invalidate_gfx. yes that's a mouthful. no we're not shortening it. it's iconic, it stays.

---

✨ NAME ✨

amdgpu_hmm_invalidate_gfx — the callback that slides into your DMs to let you know the mm is about to change 🦋

---

🌸 SYNOPSIS 🌸

bool amdgpu_hmm_invalidate_gfx (struct mmu_interval_notifier *mni ,
       const struct mmu_notifier_range *range , unsigned long cur_seq );

it returns a bool, bestie. keep that in mind. 🎀

---

💖 ARGUMENTS 💖

• mni — the range (mm) is literally about to update, so this is your heads-up notifier. pay attention. 👀
• range — all the deets on the invalidation. the juicy details. the who/what/when of the whole thing. ✨
• cur_seq — the value you pass to mmu_interval_set_seq. that's it. that's the job. don't overthink it. 💅

---

🦋 DESCRIPTION 🦋

okay so what this function actually does: it blocks until operations on BOs finish up, and then it marks pages as accessed — and potentially dirty. that's the whole vibe. 🫶

ngl this is the "wait for everyone to get out of the bathroom before you mop" of kernel callbacks. block first, mark later. periodt.

---

👑 SEE ALSO 👑

the whole friend group, fr fr:

• Kernel file ./drivers/gpu/drm/amd/amdgpu/amdgpu_hmm.c
• MMU Notifier(9)
• amdgpu_hmm_invalidate_hsa(9)
• amdgpu_hmm_register(9)
• amdgpu_hmm_unregister(9)
• amdgpu_hmm_range_valid(9)
• amdgpu_hmm_range_alloc(9)
• amdgpu_hmm_range_free(9)

---

and that's the page, bestie 🧚💜 this masterpiece lives in ./drivers/gpu/drm/amd/amdgpu, it's stamped October 2026, and it goes out under the title amdgpu_hmm_invalidate_gfx(9) from the Kernel API Manual. slay, stay hydrated, and go mark some pages as accessed 💖✨🎀