ipc_mmio_set...ddr_and_size(9)

💅 NAME 💅

okay so bestie, we're in the Kernel API Manual — this page is ipc_mmio_set...ddr_and_size(9), and the actual star of the show is:

ipc_mmio_set_psi_addr_and_size — it sets the start address and the size of the primary system image (PSI) so the FW dowload can do its thing. that's it, that's the whole vibe 🎀

✨ SYNOPSIS ✨

void ipc_mmio_set_psi_addr_and_size (struct iosm_mmio *ipc_mmio ,
       dma_addr_t addr , u32 size );

she returns void, she takes three things, she does not miss 👑

🦋 ARGUMENTS 🦋

• ipc_mmio — pointer to your mmio instance. like, hand her the whole mmio situation 🫶
• addr — the PSI address. this is the starting point, bestie 📍
• size — the PSI immage size. (that's literally how the original spells it, we're keeping the lore 💀)

🌸 SEE ALSO 🌸

go read the kernel file ./drivers/net/wwan/iosm/iosm_ipc_mmio.h and also struct iosm_mmio(9), plus the whole friend group:

• ipc_mmio_init(9)
• ipc_mmio_set_contex_info_addr(9)
• ipc_mmio_get_cp_version(9)
• ipc_mmio_get_rom_exit_code(9)
• ipc_mmio_get_exec_stage(9)
• ipc_mmio_get_ipc_state(9)
• ipc_mmio_copy_chip_info(9)
• ipc_mmio_config(9)
• ipc_mmio_update_cp_capability(9)

no cap, that's the full list — every single one, don't skip a single sibling iykyk 🧚

bye bestie!! this masterpiece lives in ./drivers/net/wwan/iosm, dated October 2026, and the page answers to ipc_mmio_set...ddr_and_size(9) — slay, go set some addresses 💖✨🎀