amdgpu_bo_create_isp_user(9)

📦 version 7.3.1, in nixpkgs unstable

✨ amdgpu_bo_create_isp_user(9) — from the Kernel API Manual, bestie ✨

okay so bestie, pull up a chair 🎀 because this one's a kernel function and it's lowkey iconic. it lives in the Kernel API Manual (that's the manual name, iykyk) and it's all about making a user BO for isp. let's get into it 💅

🌸 NAME 🌸

amdgpu_bo_create_isp_user — literally "create user BO for isp". that's the whole vibe fr fr 💖

🦋 SYNOPSIS 🦋

int amdgpu_bo_create_isp_user (struct amdgpu_device *adev , struct
       dma_buf *dma_buf , u32 domain , struct amdgpu_bo **bo , u64 *gpu_addr );

💜 ARGUMENTS 💜

  • adev — the amdgpu device object 🖥️ your main character.
  • dma_buf — the DMABUF handle for the isp buffer, bestie 🎀
  • domain — where to place it. that's it. that's the whole description. periodt.
  • bo — used to initialize BOs in structures 🧚
  • gpu_addr — the GPU addr of the pinned BO. slay ⭐

🌈 DESCRIPTION 🌈

so what does it actually do? it imports the isp DMABUF to allocate and pin a user BO for isp internal use 😌✨ it does a GART alloc to generate gpu_addr for the BO, so that the BO is accessible through the GART aperture for the ISP HW. that's the whole flex 💪

and here's the part that's giving main character energy: this function is exported to allow the V4L2 isp device — which lives external to the drm device — to create and access the isp user BO 🫶 no cap, that's the whole reason it exists.

🔥 RETURN 🔥

0 on success, negative error code otherwise. that's it. no drama 💀

👑 SEE ALSO 👑

the kernel file lives right here: ./drivers/gpu/drm/amd/amdgpu/amdgpu_object.c 🍓

and here's the whole friend group, no one left out 💖

and that's the page, bestie 🧚💜 it came from ./drivers/gpu/drm/amd/amdgpu (that's the source/version bit), dated October 2026 — go off, calendar 📅✨ mwah 💋

📦 where this page comes from