Hi Ohad, On Tuesday 07 June 2011 15:46:26 Ohad Ben-Cohen wrote: > On Tue, Jun 7, 2011 at 2:26 PM, Laurent Pinchart wrote: > >> Right now we have a BUG_ON if pa is unaligned, but that can be changed > >> if needed (do we want it to handle offsets ?). > > > > At least for the OMAP3 ISP we need to, as video buffers don't necessarily > > start on page boundaries. > > Where do you take care of those potential offsets today ? Or do you > simply ignore the offsets and map the entire page ? Here http://marc.info/?l=linux-omap&m=130693502326513&w=2 :-) > Seems like omap's iommu (mostly) rejects unaligned pa addresses, see: > > 4abb761749abfb4ec403e4054f9dae2ee604e54f "omap iommu: Reject unaligned > addresses at setting page table entry" > > (this doesn't seem to cover 4KB entries though, only large pages, > sections and super sections) > > > A separate patch is indeed needed, yes. As you're already working on > > iommu it might be simpler if you add it to your tree. > > Sure, i'll send it. -- Regards, Laurent Pinchart -- To unsubscribe from this list: send the line "unsubscribe linux-media" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
