On 03/11/14 10:45, Stefano Stabellini wrote: > On Mon, 27 Oct 2014, Stefano Stabellini wrote: >> Introduce an arch specific function to find out whether a particular dma >> mapping operation needs to bounce on the swiotlb buffer. >> >> On ARM and ARM64, if the page involved is a foreign page and the device >> is not coherent, we need to bounce because at unmap time we cannot >> execute any required cache maintenance operations (we don't know how to >> find the pfn from the mfn). >> >> No change of behaviour for x86. >> >> Signed-off-by: Stefano Stabellini <[email protected]> >> Acked-by: Ian Campbell <[email protected]> > > Konrad, David, are you OK with the swiotlb-xen changes?
Reviewed-by: David Vrabel <[email protected]> But swiotlb is Konrad's responsibility. David -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
