On Fri, Feb 14, 2020 at 02:58:16PM -0800, Isaac J. Manjarres wrote: > From: Liam Mark <lm...@codeaurora.org> > > Some devices have a memory map which contains gaps or holes. > In order for the device to have as much IOVA space as possible, > allow its driver to inform the DMA-IOMMU layer that it should > not allocate addresses from these holes. > > Change-Id: I15bd1d313d889c2572d0eb2adecf6bebde3267f7 > Signed-off-by: Isaac J. Manjarres <isa...@codeaurora.org>
Ideally this is something put into the IOMMU firmware table by the platform firmware. If its not there, a quirk is the best way to handle this. Regards, Joerg _______________________________________________ iommu mailing list iommu@lists.linux-foundation.org https://lists.linuxfoundation.org/mailman/listinfo/iommu