amdgpu_vmid_grab(9)

✨ amdgpu_vmid_grab ✨

okay so this is from the Kernel API Manual bestie, and it's literally the page for amdgpu_vmid_grab — the function whose whole job is grabbing you the next free VMID 🎀 no cap, that's the entire vibe.

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🌸 NAME 🌸

amdgpu_vmid_grab — allocate the next free VMID 💅

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🦋 SYNOPSIS 🦋

int amdgpu_vmid_grab (struct amdgpu_vm *vm , struct amdgpu_ring *ring ,
struct amdgpu_job *job , struct dma_fence **fence );

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💖 ARGUMENTS 💖

• vm — the vm we're allocating an id for 🫶
• ring — the ring we want to submit the job to ✨
• job — the job that wants to use the VMID, main character energy fr
• fence — the fence to wait on if no id could be grabbed 😭 like the backup plan

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🌈 DESCRIPTION 🌈

So basically it allocates an id for the vm, and it adds fences to the sync obj as necessary. that's the whole thing. iconic, lowkey does exactly what it says on the tin 💜

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👑 SEE ALSO 👑

kernel file ./drivers/gpu/drm/amd/amdgpu/amdgpu_ids.c — that's where the magic lives 🧚

and the whole friend group:

• amdgpu_pasid_alloc(9)
• amdgpu_pasid_free(9)
• amdgpu_pasid_clear_owner(9)
• amdgpu_pasid_lock(9)
• amdgpu_pasid_unlock(9)
• amdgpu_pasid_get_fpriv_locked(9)
• amdgpu_pasid_free_delayed(9)
• amdgpu_vmid_had_gpu_reset(9)
• amdgpu_vmid_grab_idle(9)
• amdgpu_vmid_grab_reserved(9)
• amdgpu_vmid_grab_used(9)
• amdgpu_vmid_reset(9)
• amdgpu_vmid_reset_all(9)
• amdgpu_vmid_mgr_init(9)
• amdgpu_vmid_mgr_fini(9)
• amdgpu_pasid_mgr_cleanup(9)

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aaaaand that's the page bestie 🍓 ilysm for reading the whole thing. this lil masterpiece comes from ./drivers/gpu/drm/amd/amdgpu and it's dated October 2026 ⭐ periodt, go grab those VMIDs responsibly 💀💖