Prandr

XDMA: Add lseek() to all interfaces and add sanity checks for addresses

2

[XDMA driver doesn't implement lseek for AXI Lite interface](https://github.com/Xilinx/dma_ip_drivers/issues/96), which is not only completely illogical, because it is supposed to set the AXI addresses, but potentially problematic, because since version...

XDMA: Implementation of bypass BAR seems to make no sense

4

Host DMA bypass interface (on bypass BAR) and descriptor bypass modes are, despite similar names, are very different, yet they share implementation. write op copies descriptors from an engine to...

I have reworked the XDMA procedure

3

The mainline Xilinx DMA driver creates descriptors strictly on the boundaries of a page, thus limiting them to only 4096 bytes. This way it makes very inefficient use of them....