[LAD] How do I add threadirqs as a default boot parameter for a linux kernel not editing boot configs?

[Kaj Ailomaa]

I've been trying to find some docs on how to get the kernel to boot with 
the threadirqs by default, and not needing to pass that option manually 
at boot time (or editing a boot config).
Or, any boot option for that matter..

Anyone care to shed some light on this? :)