For performance optizimization I should be able to switch bits in ACTLR register of the cp15 unit. I've done stuff like this before in bare metal projects, but from linux user space I can't execute mcr and mrc for good reason (privileged mode required). And I am aware that coprocessor register changes will have special implications in a multiuser environment.So obviously I need a kernel interface to do such a thing, but no matter what term I look for in web search, I don't find anything like that.Well, if nothing like this is implemented in any kernel module, do I have a chance at all besides from taking one of the arm cores away from my linux and have a bare metal job running there?
Is there a linux interface for arm cp15 register access?
linux;kernel;performance;arm;optimization