On Mon, Feb 03, 2003 at 09:57:02AM +0100, Nemanja Popov wrote: > Does Lexra's CPU LX4280 has MMU. I've found from dateaheet LX4280 that > there is only SMMU (S stands for Simple) which does not include TLB and > exceptions related to that. > I've noticed port for lexra (among others also for LX4280) on cvs. Is it > possible to run linux on that kind of processor, and if so will it manage > user space application as it should with mmu. TLB-less processors aren't supported at all by Linux 2.4. Linux 2.5 has the infrastructure in place to support TLB-less processors but we don't support that on MIPS. I guess it's probably not interesting because TLB-less CPUs tend to be part of systems that are too resource constrained to be of interest for use with Linux but I certainly wouldn't refuse such patches. The CVS kernel does not support Lexra processors. There are a bit over one year old Lexra patches for 2.4. Me and the author agreed to not merge those patches into the CVS kernel because Lexra is a dead company. Ralf
