> > You see, this just keeps growing in features and complexity :-) > It would be nice for ioremap() to consider multiple, dynamic 8M > pages on 8xx like it does BATs on traditional PPC. It will do > this .... someday soon.
You should consider 8Mb pages the way we do BATs yes, that is have something like an array of those or use 2 PMD entries to represent them, and then, have ioremap treat them like it does with BATs. Such 8Mb pages could then be setup using io_block_mapping(). Note that I'll soon send the patch I told you about that makes the virtual address picked by io_block_mapping() dynamic, so we no longer have to do crappy assumptions all over the place :) > Perhaps I should go back and push some of this dynamic 8M > page stuff. It would eliminate the tlbie() problems, give us > more flexibility. Damn, not enough hours in a day .... Looks like a good idea though :) Ben.
