This patch series *) add PCI endpoint core layer *) modify designware/dra7xx driver to be configured in EP mode *) add a PCI endpoint *test* function driver and corresponding host driver Changes from v1: *) The preparation patches for adding EP support is removed and is sent separately *) Added device ID for DRA74x/DRA72x and used it instead of using "PCI_ANY_ID" *) Added userguide for PCI endpoint test function Major Improvements from RFC: *) support multi-function devices (hw supported not virtual) *) Access host side buffers *) Raise MSI interrupts *) Add user space program to use the host side PCI driver *) Adapt all other users of designware to use the new design (only compile tested. Since I have only dra7xx boards, the new design has only been tested in dra7xx. I'd require the help of others to test the platforms they have access to). The patch series is created after applying https://lkml.org/lkml/2017/2/16/270 I've also pushed the tree to git://git.kernel.org/pub/scm/linux/kernel/git/kishon/pci-endpoint.git next Kishon Vijay Abraham I (22): PCI: endpoint: Add EP core layer to enable EP controller and EP functions Documentation: PCI: Guide to use PCI Endpoint Core Layer PCI: endpoint: Introduce configfs entry for configuring EP functions Documentation: PCI: Guide to use pci endpoint configfs Documentation: PCI: Add specification for the *pci test* function device PCI: endpoint: functions: Add an EP function to test PCI Documentation: PCI: Add binding documentation for pci-test endpoint function PCI: dwc: designware: Add EP mode support dt-bindings: PCI: Add dt bindings for pci designware EP mode PCI: dwc: dra7xx: Facilitate wrapper and msi interrupts to be enabled independently PCI: dwc: dra7xx: Add EP mode support dt-bindings: PCI: dra7xx: Add dt bindings for pci dra7xx EP mode PCI: dwc: dra7xx: Workaround for errata id i870 dt-bindings: PCI: dra7xx: Add dt bindings to enable legacy mode PCI: Add device IDs for DRA74x and DRA72x misc: Add host side pci driver for pci test function device Documentation: misc-devices: Add Documentation for pci-endpoint-test driver tools: PCI: Add a userspace tool to test PCI endpoint tools: PCI: Add sample test script to invoke pcitest Documentation: PCI: Add userguide for PCI endpoint test function MAINTAINERS: add PCI EP maintainer ARM: DRA7: clockdomain: Change the CLKTRCTRL of CM_PCIE_CLKSTCTRL to SW_WKUP Documentation/PCI/00-INDEX | 8 + .../PCI/endpoint/function/binding/pci-test.txt | 17 + Documentation/PCI/endpoint/pci-endpoint-cfs.txt | 84 +++ Documentation/PCI/endpoint/pci-endpoint.txt | 190 +++++++ Documentation/PCI/endpoint/pci-test-function.txt | 66 +++ Documentation/PCI/endpoint/pci-test-howto.txt | 167 ++++++ .../devicetree/bindings/pci/designware-pcie.txt | 26 +- Documentation/devicetree/bindings/pci/ti-pci.txt | 41 +- Documentation/misc-devices/pci-endpoint-test.txt | 35 ++ MAINTAINERS | 9 + arch/arm/mach-omap2/clockdomains7xx_data.c | 2 +- drivers/Makefile | 2 + drivers/misc/Kconfig | 7 + drivers/misc/Makefile | 1 + drivers/misc/pci_endpoint_test.c | 534 +++++++++++++++++++ drivers/pci/Kconfig | 1 + drivers/pci/dwc/Kconfig | 36 +- drivers/pci/dwc/Makefile | 5 +- drivers/pci/dwc/pci-dra7xx.c | 271 +++++++++- drivers/pci/dwc/pcie-designware-ep.c | 342 ++++++++++++ drivers/pci/dwc/pcie-designware.c | 51 ++ drivers/pci/dwc/pcie-designware.h | 79 +++ drivers/pci/endpoint/Kconfig | 33 ++ drivers/pci/endpoint/Makefile | 7 + drivers/pci/endpoint/functions/Kconfig | 12 + drivers/pci/endpoint/functions/Makefile | 5 + drivers/pci/endpoint/functions/pci-epf-test.c | 513 ++++++++++++++++++ drivers/pci/endpoint/pci-ep-cfs.c | 427 +++++++++++++++ drivers/pci/endpoint/pci-epc-core.c | 548 ++++++++++++++++++++ drivers/pci/endpoint/pci-epc-mem.c | 143 +++++ drivers/pci/endpoint/pci-epf-core.c | 347 +++++++++++++ include/linux/mod_devicetable.h | 10 + include/linux/pci-epc.h | 141 +++++ include/linux/pci-epf.h | 160 ++++++ include/linux/pci_ids.h | 2 + include/uapi/linux/Kbuild | 1 + include/uapi/linux/pcitest.h | 19 + tools/pci/pcitest.c | 186 +++++++ tools/pci/pcitest.sh | 56 ++ 39 files changed, 4544 insertions(+), 40 deletions(-) create mode 100644 Documentation/PCI/endpoint/function/binding/pci-test.txt create mode 100644 Documentation/PCI/endpoint/pci-endpoint-cfs.txt create mode 100644 Documentation/PCI/endpoint/pci-endpoint.txt create mode 100644 Documentation/PCI/endpoint/pci-test-function.txt create mode 100644 Documentation/PCI/endpoint/pci-test-howto.txt create mode 100644 Documentation/misc-devices/pci-endpoint-test.txt create mode 100644 drivers/misc/pci_endpoint_test.c create mode 100644 drivers/pci/dwc/pcie-designware-ep.c create mode 100644 drivers/pci/endpoint/Kconfig create mode 100644 drivers/pci/endpoint/Makefile create mode 100644 drivers/pci/endpoint/functions/Kconfig create mode 100644 drivers/pci/endpoint/functions/Makefile create mode 100644 drivers/pci/endpoint/functions/pci-epf-test.c create mode 100644 drivers/pci/endpoint/pci-ep-cfs.c create mode 100644 drivers/pci/endpoint/pci-epc-core.c create mode 100644 drivers/pci/endpoint/pci-epc-mem.c create mode 100644 drivers/pci/endpoint/pci-epf-core.c create mode 100644 include/linux/pci-epc.h create mode 100644 include/linux/pci-epf.h create mode 100644 include/uapi/linux/pcitest.h create mode 100644 tools/pci/pcitest.c create mode 100644 tools/pci/pcitest.sh -- 1.7.9.5