STRUCT IMGU_CSS_MAP(9)

💅 struct imgu_css_map(9) 💅

okay bestie, welcome to the Kernel API Manual — we're doing the struct imgu_css_map(9) page, and it's literally the backstage pass for buffer DMA mapping info 💖. no cap, every field matters.

🎀 NAME 🎀

struct imgu_css_map — the struct that stores DMA mapping info for a buffer. that's it, that's the assignment ✨.

✨ SYNOPSIS ✨

struct imgu_css_map {
    size_t size;
    void *vaddr;
    dma_addr_t daddr;
    struct page **pages;
 };

💖 Members 💖

• size — size of the buffer in bytes. not a vibe, an actual byte count 🫶.
• vaddr — kernel virtual address. yes bestie, the kernel-side address ✨.
• daddr — iova dma address to access IPU3. that's the DMA address the IPU3 uses 💅.
• pages — pages mapped to this buffer. it's giving page squad 🌸.

🦋 SEE ALSO 🦋

the See Also is: Kernel file ./drivers/staging/media/ipu3/ipu3-css-pool.h, plus struct imgu_css_pool(9) — go read the lore iykyk 🧚.

okay bye bestie, mwah 💋 — source/version drop: ./drivers/staging/media/ipu3; date: October 2026; page: struct imgu_css_map(9) 🌈⭐