Hello, On Wednesday, August 17, 2011 2:03 AM Jonathan Corbet wrote: > On Tue, 16 Aug 2011 12:34:56 +0200 > Marek Szyprowski <m.szyprowski@xxxxxxxxxxx> wrote: > > > Right, I wasn't aware of that, but it still doesn't look like an issue. The only > > > > client of dma-sg allocator is marvell-ccic, which is used on x86 systems. If one > > needs dma-sg allocator on ARM, he should follow the suggestion from the > > 74facffeca3795ffb5cf8898f5859fbb822e4c5d commit message. > > Um...that driver runs on ARM, actually - the controller is part of the > ARMADA 610 SoC... Ups, I'm really sorry, it looks that I mixed something. I thought that OLPCs are only x86 based. > For the OLPC 1.75 there will never be a scatterlist longer than one > page, I don't think. That controller can do HD, though, so longer > lists are possible in the future. Ok, I see. Do you think it would be possible to ask PXA/MMP platform developers to review all the drivers that can be used on that platform and enable scatter-list chaining for this arm sub-arch? If this is a problem then we will have to delay this sg chaining patch. Best regards -- Marek Szyprowski Samsung Poland R&D Center -- 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