amdgpu_ib_get(9)

💖 amdgpu_ib_get(9) 💖

okay bestie, welcome to the Kernel API Manual — this one's a lil kernel function from the AMDGPU corner of the world, and it's literally about asking for an IB (an Indirect Buffer, iykyk). no cap, it's short and sweet. 🦋

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✨ NAME ✨

amdgpu_ib_get — request an IB (Indirect Buffer)

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🌸 SYNOPSIS 🌸

int amdgpu_ib_get (struct amdgpu_device *adev , struct amdgpu_vm *vm ,
unsigned int size , enum amdgpu_ib_pool_type pool_type , struct
amdgpu_ib *ib );

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🎀 ARGUMENTS 🎀

• adev — an amdgpu_device pointer. the device, the main character fr 💅
• vm — an amdgpu_vm pointer. virtual memory said hi 👋
• size — the requested IB size. you tell it how big, it does the rest ✨
• pool_type — the IB pool type, and the options are delayed, immediate, and direct. pick your vibe 🫶
• ib — the IB object that gets returned to you. that's your prize 🎁

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🔥 DESCRIPTION 🔥

So basically you're requesting an IB — and this works on all asics, no exceptions, periodt. IBs get allocated using the suballocator (yes, that's the actual mechanism, not me being cute). 🧚

It returns 0 on success, and an error on failure. that's the whole vibe check: zero = slay, error = 😭 💀

ngl, do check that return value — an error means you don't have your IB, and pretending otherwise is not the move 🙈

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⭐ SEE ALSO ⭐

Kernel file ./drivers/gpu/drm/amd/amdgpu/amdgpu_ib.c, plus these iconic neighbors:

• amdgpu_ib_free(9)
• amdgpu_ib_schedule(9)
• amdgpu_ib_pool_init(9)
• amdgpu_ib_pool_fini(9)
• amdgpu_ib_pool_gfp_flags(9)
• amdgpu_ib_ring_tests(9)

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and that's the page, bestie 💜 this lil beauty comes from ./drivers/gpu/drm/amd/amdgpu (you know the source/version), dated October 2026 — so go forth, get your IB, and stan the suballocator for me 🌈👑🍓