STRUCT VSP1_DL_BODY_POOL(9)

📦 version 7.3.1, in nixpkgs unstable

💅 struct vsp1_dl_body_pool(9) — the Kernel API Manual, but make it cute

okay so bestie, welcome to the Kernel API Manual 💖 this is the page for struct vsp1_dl_body_pool, and no cap, it's lowkey one of those supporting-cast structs that makes the whole display-list situation work. it's giving "backstage crew at the awards show" energy — nobody claps for it, but nothing slays without it. 🎀

✨ NAME ✨

struct vsp1_dl_body_pool — display list body pool. that's it, that's the vibe. it's a pool. for display list bodies. 🫶

🌸 SYNOPSIS 🌸

struct vsp1_dl_body_pool {
    dma_addr_t dma;
    size_t size;
    void *mem;
    struct vsp1_dl_body *bodies;
    struct list_head free;
    spinlock_t lock;
    struct vsp1_device *vsp1;
};

like, look at her. seven members, zero notes. the way she's structured? iconic. 👑

🦋 Members 🦋

so here's the member-by-member breakdown, and yes i'm doing full commentary because every single one of these matters:

  • dma — the DMA address of the entries. this is where the hardware actually finds them, fr fr.
  • size — the size of the full DMA memory pool in bytes. the whole pool. not a fraction, not a vibe, the full thing.
  • mem — the CPU memory pointer for the pool. yes, a CPU-side pointer too — bestie gets both addresses, main character energy. 💅
  • bodies — the array of DLB structures for the pool. "DLB" = display list body, iykyk.
  • free — the list of free DLB entries. this is the "available right now" list, the roster of unclaimed bodies~ ✨
  • lock — protects the free list. do not skip the lock. the free list is a shared resource and this spinlock is what keeps everyone from stepping on each other 😭
  • vsp1 — the VSP1 device. the parent, the origin, the one who birthed this whole pool 🍼
quick vibe check: dma and mem are two views of the same pool situation (device-side address vs CPU-side pointer), and size covers the whole thing — so don't go thinking either pointer only covers part of it.

🎀 SEE ALSO 🎀

all the friends and neighbours, in the order they showed up:

Kernel file ./drivers/media/platform/renesas/vsp1/vsp1_dl.c, plus:

like a whole group chat of related symbols and you're invited to every single one 🫶

and that's the page!! mwah 💋 this cutie came straight out of ./drivers/media/platform/renes... (yes it's truncated in the footer, that's literally how it's printed, don't @ me 🙈) and it's dated October 2026, version-tagged with struct vsp1_dl_body_pool(9) for the Kernel API Manual — periodt. go read the SEE ALSOs, bestie, they're all waiting 💜🌈⭐

📦 where this page comes from