mips_cdmm_phys_base(9)

okay bestie, you're reading the Kernel API Manual page for mips_cdmm_phys_base 💖 this one is short but it's giving "weak function with main character energy," and we are keeping every detail, no cap.

✨ NAME ✨

mips_cdmm_phys_base — choose a physical base address for the CDMM region 🎀

🌸 SYNOPSIS 🌸

phys_addr_t mips_cdmm_phys_base (void );

🦋 ARGUMENTS 🦋

• void — no arguments, bestie. literally none. 🙈

💅 DESCRIPTION 💅

okay so picking a suitable physical address to map the CDMM region at is platform specific — very "every board has its own vibe" — so platform code can override this weak function to pick a suitable value if none is configured by the bootloader. slay.

By default, this method goes looking for a CDMM-specific node in the system dtb. Note: this won't work for an early serial console. periodt.

lowkey important: the default dtb lookup is not gonna save you for early serial console, so don't come for me when it doesn't. 💀

🔥 SEE ALSO 🔥

Kernel file ./drivers/bus/mips_cdmm.c and all these besties:

• 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_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)

xoxo, your Kernel API Manual bestie 💖 footer sign-off: source/version side is ./drivers/bus, date is October 2026, and the page is mips_cdmm_phys_base(9) 🫶