On 8/1/07, Ralf Baechle <ralf@xxxxxxxxxxxxxx> wrote: > On Wed, Aug 01, 2007 at 03:18:00PM +0200, Mohamed Bamakhrama wrote: > > > In those two header files, flush & invalidate operations were > > implemented. Nevertheless, the MIPS32 core supports cache locking as > > well. Is there any implementations for Fetch&Lock instructions within > > the kernel? > > No. The primary use for cache locking seems to be the rather extreme > realtime requirements, a league where Linux isn't playing quite yet. > For a more general purpose OS locking has a good chance of doing more > harm than help. > > Ralf > I agree with you that it fits more to real-time systems. My point was that such a functionality can be added to the list of available macros (i.e. Fetch, invalidate) so that when the developer (of an embedded system for example) needs it, he/she can use it directly. Is it possible to submit a patch which adds this functionality? Regards, -- Mohamed
