Hi all, this series with patches originally from Palmer and Wesley adds support for the pcie-xilinx host driver on RISC-V boards. The interesting part about that is that the IP blocks is limited to 32-bit DMA internally, which didn't seem to be an issue with the existing users, but shows up easily with the Sifive RISC-V boards that have physical memory wired up above 4G. Note that patches 1 and 2 depend on changes in the dma-mapping tree to add the bus_dma_mask field to struct device and would have to merge through the dma-mapping tree or a shared stable branch. Patch 3 could be merged independently. Changes since v2: - rename the add_dev callback to add_device and allow it to return an error code (to allow it to replace pcibios_add_device in the future) Changes since v1: - move the add_dev method to struct pci_host_bridge - use the new bus_dma_mask field
