On Tue, Dec 09, 2008 at 07:17:13PM +0100, Arnaud Patard wrote: > What about things like _CACHE_UNCACHED_ACCELERATED ? Is there a way to > use this flag ? That's possible but will require some additional care in the code. Multiple mappings using different cache modes need to be avoided and also not all processors support _CACHE_UNCACHED_ACCELERATED. If you know your software is playing nice and your CPU supports _CACHE_UNCACHED_ACCELERATED, you can hack the mmap function to use _CACHE_UNCACHED_ACCELERATED if write_combine is set. Just for now and for something which I'm planning to push for 2.6.28 I don't want anything that's more than trivial. Ralf
