mips_cdmm_cpu_down_prep(9)

🌸 NAME 🌸

okay so welcome to the mips_cdmm_cpu_down_prep(9) page, bestie 💅✨ this one is short and iconic: it's the callback for CPUHP DOWN_PREP, and the official vibe is Callback for CPUHP DOWN_PREP: Tear down the CDMM bus. no cap, that's the tea 🫖

✨ SYNOPSIS ✨

int mips_cdmm_cpu_down_prep (unsigned int cpu );

that's the whole signature, bestie — returns an int, takes an unsigned int cpu. iconic.

🌈 ARGUMENTS 🌈

• cpu — unsigned int CPU number. literally just the CPU number, bestie. 🫶

🦋 DESCRIPTION 🦋

okay so here's the tea: this function is executed on the hotplugged CPU, and it calls the CDMM driver cpu_down callback for all devices on that CPU. that's it. it's giving tear down the CDMM bus main character energy 💅🔥

👑 SEE ALSO 👑

Kernel file ./drivers/bus/mips_cdmm.c plus this whole friend group:

• struct mips_cdmm_work_dev(9)
• mips_cdmm_void_work(9)
• mips_cdmm_int_work(9)
• BUILD_PERCPU_HELPER(9)
• mips_cdmm_driver_register(9)
• mips_cdmm_driver_unregister(9)
• struct mips_cdmm_bus(9)
• mips_cdmm_get_bus(9)
• mips_cdmm_cur_base(9)
• mips_cdmm_phys_base(9)
• mips_cdmm_setup(9)
• mips_cdmm_early_probe(9)
• mips_cdmm_release(9)
• mips_cdmm_bus_discover(9)
• BUILD_PERDEV_HELPER(9)
• mips_cdmm_cpu_online(9)
• mips_cdmm_init(9)

source/version: ./drivers/bus · date: October 2026 — bye bestie, go be iconic with that hotplug teardown 🫶💖