_dpu_plane_calc_fill_level(9)

📦 version 7.3.1, in nixpkgs unstable

✨ _dpu_plane_calc_fill_level(9) ✨

okay so this is a page from the Kernel API Manual, and bestie, it's a whole little function that figures out the fill level of whatever source format you throw at it. it's giving "tiny but crucial" energy 💅

🌸 NAME 🌸

_dpu_plane_calc_fill_level — literally just calculates the fill level of the given source format, that's it, that's the whole job 🎀

🦋 SYNOPSIS 🦋

int _dpu_plane_calc_fill_level (struct drm_plane *plane , struct
dpu_sw_pipe *pipe , enum dpu_qos_lut_usage lut_usage , const struct
msm_format *fmt , u32 src_width );

💖 ARGUMENTS 💖

  • plane — pointer to the drm plane, bestie 🫶
  • pipe — pointer to the software pipe, yes another pointer, we love pointers
  • lut_usage — the LUT usecase, iykyk ✨
  • fmt — pointer to the source buffer format 🌈
  • src_width — the width of the source buffer, iconic and numeric 👑

🔥 RETURN 🔥

it hands you back the fill level that corresponds to your source buffer / format — or 0 if something went wrong 😭 zero means error here, so don't get it twisted fr fr 💀

🧚 SEE ALSO 🧚

Kernel file ./drivers/gpu/drm/msm/disp/dpu1/dpu_plane.c — that's where the magic lives, go look 🍓

and then the whole friend group of sibling functions, all of them, no gatekeeping:

and that's the whole page, slay 💜

cute sign-off time: this one comes from the source tree at ./drivers/gpu/drm/msm/disp/dpu1, dated October 2026, and it's filed under the Kernel API Manual — periodt 🎀✨

📦 where this page comes from