Lizhi Hou 17ce252266 dmaengine: xilinx: xdma: Add xilinx xdma driver ... Add driver to enable PCIe board which uses XDMA (the DMA/Bridge Subsystem for PCI Express). For example, Xilinx Alveo PCIe devices. https://www.xilinx.com/products/boards-and-kits/alveo.html The XDMA engine support up to 4 Host to Card (H2C) and 4 Card to Host (C2H) channels. Memory transfers are specified on a per-channel basis in descriptor linked lists, which the DMA fetches from host memory and processes. Events such as descriptor completion and errors are signaled using interrupts. The hardware detail is provided by https://docs.xilinx.com/r/en-US/pg195-pcie-dma/Introduction This driver implements dmaengine APIs. - probe the available DMA channels - use dma_slave_map for channel lookup - use virtual channel to manage dmaengine tx descriptors - implement device_prep_slave_sg callback to handle host scatter gather list - implement device_config to config device address for DMA transfer Signed-off-by: Lizhi Hou <lizhi.hou@amd.com> Signed-off-by: Sonal Santan <sonal.santan@amd.com> Signed-off-by: Max Zhen <max.zhen@amd.com> Signed-off-by: Brian Xu <brian.xu@amd.com> Tested-by: Martin Tuma <tumic@gpxsee.org> Link: https://lore.kernel.org/r/1674145926-29449-2-git-send-email-lizhi.hou@amd.com Signed-off-by: Vinod Koul <vkoul@kernel.org>		2023-02-10 11:32:26 +05:30
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Makefile	dmaengine: xilinx: xdma: Add xilinx xdma driver	2023-02-10 11:32:26 +05:30
xdma-regs.h	dmaengine: xilinx: xdma: Add xilinx xdma driver	2023-02-10 11:32:26 +05:30
xdma.c	dmaengine: xilinx: xdma: Add xilinx xdma driver	2023-02-10 11:32:26 +05:30
xilinx_dma.c	dmaengine: xilinx_dma : add xilinx_dma_device_config() return documentation	2022-11-04 19:54:15 +05:30
xilinx_dpdma.c	dmaengine: xilinx: use strscpy to replace strlcpy	2022-07-21 19:04:35 +05:30
zynqmp_dma.c	dmaengine: drivers: Use devm_platform_ioremap_resource()	2023-01-18 22:16:47 +05:30