amdgpu_gem_va_update_vm(9)

💅 amdgpu_gem_va_update_vm — like, the whole vibe

okay so bestie, welcome to the Kernel API Manual ✨ this one's about amdgpu_gem_va_update_vm(9) and it's literally the page that tells you how to update the bo_va in its VM. no cap. let's get into it 🎀

---

🌸 NAME 🌸

amdgpu_gem_va_update_vm — update the bo_va in its VM 🦋

like... that's the whole job. it updates the bo_va. in its VM. iconic behavior honestly 👑

---

✨ SYNOPSIS ✨

struct dma_fence * amdgpu_gem_va_update_vm (struct amdgpu_device *adev ,
       struct amdgpu_vm *vm , struct amdgpu_bo_va *bo_va , uint32_t operation
       );

so you hand it an adev, a vm, a bo_va and an operation, and it gives you back a struct dma_fence *. that's the shape of it, copy it exactly bestie, no typos allowed 💅

---

🫶 ARGUMENTS 🫶

• adev — an amdgpu_device pointer. it's giving "the device in question" energy 🔥
• vm — the vm to update. yes, this is the VM we're updating. main character energy fr 💖
• bo_va — the bo_va to update. she's the one getting refreshed 🌸
• operation — map, unmap or clear. three options, pick your fighter 😭

---

💀 DESCRIPTION 💀

so the deal is: you update the bo_va directly after setting its address. that's the sequence, don't skip steps bestie 🙈

and here's the lowkey important bit — errors are not vital here, so they are not reported back to userspace. like, the kernel is just gonna vibe through it. no error message, no nothing. ngl that's a whole mood 💀

what it returns:

• the resulting fence if freed BO(s) got cleared from the PT 🔥
• otherwise a stub fence in case of error. cute little consolation prize iykyk 🎀

---

🌈 SEE ALSO 🌈

• Kernel file: ./drivers/gpu/drm/amd/amdgpu/amdgpu_gem.c
• amdgpu_gem_timeout(9)
• amdgpu_gem_list_handles_ioctl(9)

go read those too, they're literally right there, bestie 🦋

---

reminder bestie: the errors get swallowed here on purpose. that's not a bug, that's the documented vibe. don't come for me 💅

---

mwah 💖 that's the whole page! source lives in ./drivers/gpu/drm/amd/amdgpu, dated October 2026 — and this little API manual moment was brought to you by the Kernel API Manual gang. slay, bye 🧚✨