STRUCT XILINX_DPDMA_SW_DESC(9)

📦 version 7.3.1, in nixpkgs unstable

💖 struct xilinx_dpdma_sw_desc(9) 💖

okay so welcome to the Kernel API Manual, bestie — this page is literally all about struct xilinx_dpdma_sw_desc, the DPDMA software descriptor. it's giving "small struct, big main character energy" and we're gonna go through it together, no cap 🫶

✨ NAME ✨

struct xilinx_dpdma_sw_desc — the DPDMA software descriptor. that's it, that's the vibe check 🌸

🦋 SYNOPSIS 🦋

struct xilinx_dpdma_sw_desc {
    struct xilinx_dpdma_hw_desc hw;
    struct list_head node;
    dma_addr_t dma_addr;
 };

three whole members, all iconic in their own way, we love a compact struct 💅

🎀 Members 🎀

  • hw — the DPDMA hardware descriptor. yes the hardware one. it's living inside the software one, we love a crossover episode 🔥
  • node — the list node for software descriptors. it's how the descriptor links up with its little friends, literally a group chat in struct form 😭
  • dma_addr — the DMA address of the software descriptor. where it actually lives, address-wise, periodt 📍

🌈 SEE ALSO 🌈

first up, the kernel file where all of this actually lives: ./drivers/dma/xilinx/xilinx_dpdma.c — go read it, iykwim 👀

and now the full friend group, in the exact order the manual gives them (do not come for me, i'm just the messenger 💀):

like, that is a lot of functions but every single one of them is doing its little job and honestly? obsessed 🧚

ngl bestie, just read the source file too — the manual can only hold so much and ./drivers/dma/xilinx/xilinx_dpdma.c is the whole story 💜

and that's the page!! source/version is ./drivers/dma/xilinx and it's dated October 2026, and the whole thing still signs off as struct xilinx_dpdma_sw_desc(9) — stay slay, stay DMA-safe, and go read those cross-references 🍓💖✨

📦 where this page comes from