STRUCT WKUP_M3_MEM(9)

✨ struct wkup_m3_mem(9) ✨

okay bestie, so this is a page from the Kernel API Manual, section 9 — and it's about struct wkup_m3_mem, which is the WkupM3 internal memory structure 🎀 literally the little bookkeeping struct that keeps track of a chunk of memory the Wakeup M3 cares about. it's giving "tiny struct, big responsibilities" energy, ngl.

🌸 SYNOPSIS 🌸

here's the whole thing, character for character, no cap:

struct wkup_m3_mem {
    void __iomem *cpu_addr;
    phys_addr_t bus_addr;
    u32 dev_addr;
    size_t size;
 };

four members, all business 💅

💖 Members 💖

• cpu_addr — the MPU virtual address of the memory region. yeah, this is the one your CPU-side code actually dereferences 🫶
• bus_addr — the bus address used to access the memory region. lowkey the "how do I get there from the bus" address 🚌✨
• dev_addr — the device address from the Wakeup M3 view 👀 like, the address as the Wakeup M3 itself sees it. main character perspective, fr fr.
• size — size of the memory region. how much memory we're talking about, periodt 📏

🦋 SEE ALSO 🦋

• Kernel file ./drivers/remoteproc/wkup_m3_rproc.c
• struct wkup_m3_rproc(9)

💜 friendly reminder: cpu_addr is void __iomem *, so handle it with the proper kernel I/O accessors — don't just go dereferencing it all willy-nilly, bestie 😭

so yeah, that's the whole page, it's short and iconic and I'm obsessed with how tidy it is ✨ go read struct wkup_m3_rproc(9) next if you want the rest of the lore, iykyk 🧚

source: ./drivers/remoteproc — dated October 2026 💅 slay, that's a wrap! 🎀