Hi All, The current PCIe EPF framework supports DMA data transfers using external DMA only, this patch series aims to add support for platforms supporting internal DMAC on PCIe for data transfers. R-Car PCIe supports internal DMAC to transfer data between Internal Bus to PCI Express and vice versa. Last patch fills up the required flags and ops to support internal DMAC. Patches 1-3 are for PCIe EPF core to support internal DMAC handling, patch 4/5 is to fix test cases based on the conversation [1]. Patches are based on top of [1] next branch. [0] https://www.spinics.net/lists/linux-pci/msg92385.html [1] https://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci.git Cheers, Prabhakar Lad Prabhakar (5): PCI: endpoint: Add ops and flag to support internal DMAC PCI: endpoint: Add support to data transfer using internal dmac misc: pci_endpoint_test: Add driver data for Renesas RZ/G2{EHMN} misc: pci_endpoint_test: Add support to pass flags for buffer allocation PCI: rcar-ep: Add support for DMAC drivers/misc/pci_endpoint_test.c | 56 ++++- drivers/pci/controller/pcie-rcar-ep.c | 227 ++++++++++++++++++ drivers/pci/controller/pcie-rcar.h | 23 ++ drivers/pci/endpoint/functions/pci-epf-test.c | 184 ++++++++++---- drivers/pci/endpoint/pci-epf-core.c | 32 +++ include/linux/pci-epc.h | 8 + include/linux/pci-epf.h | 7 + 7 files changed, 483 insertions(+), 54 deletions(-) -- 2.25.1
