mips_cdmm_get_bus(9)

💖 NAME 💖

okay so bestie, welcome to mips_cdmm_get_bus(9) from the Kernel API Manual ✨. This page is literally about one thing: get the per-CPU CDMM bus information. No cap.

🧚 SYNOPSIS 🧚

struct mips_cdmm_bus * mips_cdmm_get_bus (void );

🫶 ARGUMENTS 🫶

• void — no arguments. Zero. None. The void is voiding 💅.

🌸 DESCRIPTION 🌸

Get information about the per-CPU CDMM bus, if the bus is present. That's the vibe 🦋.

The caller must prevent migration to another CPU — either by disabling pre-emption or by running from a pinned kernel thread. Not optional, bestie. Do not let your task slide over to some other CPU while you're asking about this CPU's bus 😭.

🔥 RETURN 🔥

Pointer to CDMM bus information for the current CPU. It may return ERR_PTR(-errno) in case of error, so check with IS_ERR. Like, do a little vibe check on that pointer before you use it, because error pointers are not it 💀.

🎀 SEE ALSO 🎀

Kernel file ./drivers/bus/mips_cdmm.c:

• 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_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_down_prep(9)
• mips_cdmm_cpu_online(9)
• mips_cdmm_init(9)

cute little sign-off: source/version is ./drivers/bus, date is October 2026, and this page is done, slay 🫶🎀