sdma_v4_4_2_..._fill_buffer(9)

📦 version 7.3.1, in nixpkgs unstable

💅 sdma_v4_4_2_emit_fill_buffer — bestie, let's fill some buffers

okay so this is a page straight out of the Kernel API Manual and honestly? it's a little baddie. her whole job is filling GPU buffers using the sDMA engine and she does it flawlessly. no cap.

✨ NAME ✨

sdma_v4_4_2_emit_fill_buffer — fill buffer using the sDMA engine 🫶

🌸 SYNOPSIS 🌸

void sdma_v4_4_2_emit_fill_buffer (struct amdgpu_ib *ib , uint32_t
src_data , uint64_t dst_offset , uint32_t byte_count );

like… she takes four things and gives you nothing back (void, queen of not overexplaining 💅).

🎀 ARGUMENTS 🎀

  • ib — the indirect buffer we're copying to. this is the destination babe, the moment, the main character.
  • src_data — the actual value being written into the buffer. it's a uint32_t so keep it cute and in range ✨
  • dst_offset — the dst GPU address. that's where the magic lands, a uint64_t address bestie 🔥
  • byte_count — number of bytes to xfer. yes "xfer". yes it's iconic. don't come for her 🙈

🦋 DESCRIPTION 🦋

Fill GPU buffers using the DMA engine.

that's it. that's the whole vibe. no extra lore, no dramatic backstory — she just fills GPU buffers with the DMA engine and leaves. lowkey iconic behavior tbh 👑

🌈 SEE ALSO 🌈

okay these are her friends, her little group chat of kernel functions, all living in the Kernel file ./drivers/gpu/drm/amd/amdgpu/sdma_v4_4_2.c — go say hi fr fr:

💖 source situation: this whole crew lives at ./drivers/gpu/drm/amd/amdgpu, and this manual page is dated October 2026 — mark your calendars bestie, she's got a whole month named after her energy 🗓️✨

and that's the page!! slay, go fill those buffers, ily, mwah 🎀💜🧚

📦 where this page comes from