STRUCT XILINX_AXIDMA_DESC_HW(9)

📦 version 7.3.1, in nixpkgs unstable

💖 NAME 💖

okay bestie, welcome to the Kernel API Manual entry for struct xilinx_axidma_desc_hw — aka the Hardware Descriptor for AXI DMA. that's the whole name, no cap. the way that this page is literally the struct and its offsets? obsessed ✨

✨ SYNOPSIS ✨

ngl, the synopsis is just the struct in all its glory — keep it exact, bestie, no creative edits 💅:

       struct xilinx_axidma_desc_hw {
           u32 next_desc;
           u32 next_desc_msb;
           u32 buf_addr;
           u32 buf_addr_msb;
           u32 reserved1;
           u32 reserved2;
           u32 control;
           u32 status;
           u32 app[XILINX_DMA_NUM_APP_WORDS];
        };

🌸 Members 🌸

okay so here's the member list with every offset, and yes every single one is staying 🫶:

  • next_desc — Next Descriptor Pointer 0x00 ✨
  • next_desc_msb — MSB of Next Descriptor Pointer 0x04 💖
  • buf_addr — Buffer address 0x08 🎀
  • buf_addr_msb — MSB of Buffer address 0x0C 🦋
  • reserved1 — Reserved 0x10 🙈
  • reserved2 — Reserved 0x14 🙈
  • control — Control field 0x18 🔥
  • status — Status field 0x1C ⭐
  • app — APP Fields 0x20 - 0x30 🍓 — it's the XILINX_DMA_NUM_APP_WORDS array from the synopsis, iykyk 💅
bestie, reserved1 and reserved2 are reserved — that's the whole story, no cap 💀

🦋 SEE ALSO 🦋

first up, the kernel file is literally right here: ./drivers/dma/xilinx/xilinx_dma.c 👀

then the whole linked-friend-group, every single ref, periodt:

mwah 💋 — source/version: ./drivers/dma/xilinx; date: October 2026. bye bestie, go slay with your descriptors 🫶✨

📦 where this page comes from