dce_v8_0_program_watermarks(9)

📦 version 7.3.1, in nixpkgs unstable

✨ dce_v8_0_program_watermarks(9) ✨

okay so bestie, welcome to the Kernel API Manual 💖 — this little page is all about dce_v8_0_program_watermarks, which is literally the function that handles program display watermarks. yes. watermarks. for a display. no cap. 🎀

🌸 SYNOPSIS 🌸

void dce_v8_0_program_watermarks (struct amdgpu_device *adev , struct
       amdgpu_crtc *amdgpu_crtc , u32 lb_size , u32 num_heads );

that's the whole vibe — it returns void, so don't go looking for a return value, it's not coming 💅

🦋 ARGUMENTS 🦋

  • adev — the amdgpu_device pointer, aka the whole GPU situation 🫶
  • amdgpu_crtc — literally the selected display controller, the main character of this call 👑
  • lb_size — line buffer size, that's the number, that's the unit ✅
  • num_heads — how many display controllers are in use rn, count 'em 🔥

⭐ DESCRIPTION ⭐

Calculate and program the display watermarks for the selected display controller (CIK). that's it, that's the whole job — the function does the math and then writes the results where they need to live. two-step slay ✨

ngl this one's short and sweet — no hidden caveats, no deprecated bits, just calc + program for CIK 💜

🌈 SEE ALSO 🌈

the source of truth lives in the kernel file ./drivers/gpu/drm/amd/amdgpu/dce_v8_0.c — go read it, iykyk 📖

and here's the whole friend group of sibling functions, fr fr:

like, bandwidth this, bandwidth that — it's giving bandwidth-obsessed and honestly? same 🧚

and that's the page, bestie 🫶 this cutie came from ./drivers/gpu/drm/amd/amdgpu and it's dated October 2026 — mwah, iconic, periodt 💅💖

📦 where this page comes from