This is v3 of the patchset. The in-use unbind bits have been sent and accepted as a separate patch set. This patchset just includes the new driver which has been updated to use the common reference counting. This patchset is based off of vkoul/slave-dma.git/next and a git branch is available here: https://github.com/sbates130272/linux-p2pmem/ plx-dma-v3 Changes for v3: * Common in-use unbind bits were submitted as a separate patch set * Rebased onto vkoul/slave-dma.git/next (as of Jan 3rd 2020) Changes for v2: * Rebased onto v5.5-rc1 (no changes) * Pushed the plx_dma_isr() routine into the patch that uses it (per Vinod's feedback) Logan Gunthorpe (3): dmaengine: plx-dma: Introduce PLX DMA engine PCI driver skeleton dmaengine: plx-dma: Implement hardware initialization and cleanup dmaengine: plx-dma: Implement descriptor submission MAINTAINERS | 5 + drivers/dma/Kconfig | 9 + drivers/dma/Makefile | 1 + drivers/dma/plx_dma.c | 639 ++++++++++++++++++++++++++++++++++++++++++ 4 files changed, 654 insertions(+) create mode 100644 drivers/dma/plx_dma.c -- 2.20.1