On Tue, Aug 25, 2015 at 04:15:58PM +0200, Hans Verkuil wrote: > On 08/25/15 15:44, Thierry Reding wrote: > > On Mon, Aug 24, 2015 at 05:26:20PM -0700, Bryan Wu wrote: [...] > > > For CMA we need increase the default memory size. > > > > I'd rather not rely on CMA at all, especially since we do have a way > > around it. > > For the record, I have no problem with it if we start out with contiguous > DMA now and enhance it later. I get the impression that getting the IOMMU > to work is non-trivial, and I don't think it should block merging of this > driver. > > This is all internal to the driver, so changing it later will not affect > userspace. Fair enough. Thierry
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