On Tue, Sep 16, 2014 at 12:40:27PM +0100, Robin Murphy wrote: > On 12/09/14 17:34, Will Deacon wrote: > > Here is version three of the RFC I've previously posted here: > > > > RFCv1: > > http://lists.infradead.org/pipermail/linux-arm-kernel/2014-August/283023.html > > RFCv2: > > http://lists.infradead.org/pipermail/linux-arm-kernel/2014-September/283752.html > > > > Changes since RFCv2 include: > > > > - Put the iommu_ops in iommu_data so of_iommu_configure can avoid using > > the bus_type > > - Initialise the offset and DMA masks on the dev in of_dma_configure > > instead of in the arch callback (as this would cause a regression on > > some architectures) > > - Added deconfigure/teardown code based on ref counting the > > iommu_dma_mapping > > - A bunch of small fixes (_OF_DECLARE, some code shuffling, fix multiple > > IOMMU parsing) > > > > All feedback welcome. Hopefully this is now at a point where people can > > start looking to port dma-mapping and/or IOMMU drivers to it. > > > > What about AMBA devices? Playing with this on Juno and wondering why my > PL330 doesn't get any of_xlate callbacks, I see that > of_amba_device_create doesn't call of_dma_configure or anything from > that path. It's easy to work around by removing the arm,primecell > compatible, but that feels pretty dirty.
Yeah, that's just a bug in mainline. I'll look at fixing it if you don't beat me to it. Will _______________________________________________ iommu mailing list iommu@lists.linux-foundation.org https://lists.linuxfoundation.org/mailman/listinfo/iommu
