amdgpu_bo_m...ts_placement(9)

📦 version 7.3.1, in nixpkgs unstable

💅 amdgpu_bo_mem_stats_placement(9) ✨

okay bestie so this is a page straight outta the Kernel API Manual — yes, that Kernel API Manual — and it's about the teeny tiny function amdgpu_bo_mem_stats_placement. it's giving "small function, very important job" energy, and honestly? we're obsessed. let's get into it 🎀

🌸 NAME 🌸

amdgpu_bo_mem_stats_placement — the bo placement situation for memory accounting, iykyk 💖

⭐ SYNOPSIS ⭐

uint32_t amdgpu_bo_mem_stats_placement (struct amdgpu_bo *bo );

like, that's the whole signature. look at her. so clean, so minimal, main character energy fr fr ✨

🦋 ARGUMENTS 🦋

  • bo — the buffer object we should look at 👀 that's literally the entire vibe, she's the one we're inspecting, no cap

🔥 DESCRIPTION 🔥

okay so here's the tea 🍵: a BO can have multiple preferred placements, right? and if we just counted it under all of them we'd be double counting, which is lowkey a mess for memory stats 🙈 like bestie we are NOT doing that.

so to avoid the double counting, we want to file that BO under a single placement for memory stats. one BO, one slot, periodt. 💅

and luckily — and this is the iconic part — if we take the highest set bit in preferred_domains, the result is quite sensible 🌈 like the universe just... handed us the answer? thank u honestly 🫶

👑 RETURN 👑

which of the placements should the BO be accounted under 💖 (yes, that's the whole return value, she tells you where the BO belongs, that's her job and she ate)

🌺 SEE ALSO 🌺

the kernel file lives right here, bestie:

./drivers/gpu/drm/amd/amdgpu/amdgpu_object.c

and now the full friend group 😭 (all of these are (9) pages, we're keeping them exactly as they are because we respect the lore):

like okay go off, entire BO API family 💀 that's a whole squad and they're all iconic 👑

and that's the page!! this absolute gem lives over in ./drivers/gpu/drm/amd/amdgpu and it was dated October 2026 — yes, the future, we said what we said 🧚💜 mwah, go read amdgpu_object.c bestie, ily 🫶

📦 where this page comes from