Hi All, Here is v2 patch-series adding drivers for Intel FPGA devices.
The Intel FPGA driver provides interfaces for userspace applications to configure, enumerate, open, and access FPGA accelerators on platforms equipped with Intel(R) PCIe based FPGA solutions and enables system level management functions such as FPGA partial reconfiguration, power management and virtualization. This patch series only adds the basic functions for FPGA accelerators and partial reconfiguration. Patches for more functions, e.g power management and virtualization, will be submitted after this series gets reviewed. This patch series depends on Alan Tull's patch set v2 on FPGA region support w/o device tree (see [1]). Patch 1: add a document for Intel FPGA driver overview, including the HW architecture, driver organization, device enumeration, virtualization and opens. Patch 2: introduce a fpga-dev class. It's used in below Intel FPGA PCIe device driver, to represent a FPGA device on the system, and all actual feature devices should be registered as child nodes of this container fpga-dev device. Patch 3: remove OF dependency for fpga bridge. allow fpga bridge class to be used in non device tree case. Patch 4: add region_id for fpga_image_info data structure, which allows driver to pass region id information to fpga-mgr for FPGA reconfiguration function. Patch 5: add a 'status' sysfs interface to fpga-mgr class, it reflects the status of the fpga-mgr including reconfiguration errors. Patch 6-10: implement Intel FPGA PCIe device driver. It walks through the 'Device Feature List' in the PCI Bar, creates the container fpga-dev as parent and platform devices as children for the feature devices it found. Patch 11-14: implement Intel FPGA Management Engine (FME) driver. It's a platform driver matching with the FME platform device created by above PCIe driver. Sysfs and device file ioctls are exposed as user interfaces to allow partial reconfiguration to Accelerated Function Units (AFUs) from user space applications. Patch 15-17: implement FPGA manager/bridge/region platform drivers for Intel FPGA Management Engine (FME). These platform drivers match with platform devices created by above FME driver, they use the generic fpga-mgr/bridge/region class infrastructure to implement FPGA partial reconfiguration function. Patch 18-22: implement Intel FPGA Accelerated Function Unit (AFU) driver. It's a platform driver matching with AFU platform device created by above PCIe driver. It provides user interfaces to expose the AFU MMIO region, map/unmap dma buffer, and control the port which AFU connects to. Changes from v1: - Use GPLv2 license instead of Dual BSD/GPL. - Move the code to drivers/fpga folder. - Update the intel-fpga.txt documentation for new driver organization. - Add documentation for new sysfs interfacesa. - Switch to use common fpga-region interface for partial reconfiguration (PR) function in FME. It creates fpga-region/fpga-mgr/fpga-bridge platform devices and leave the implementation to their platform drivers. - Add platform drivers for FME fpga-mgr/bridge/region platform devices. - Fix kbuild warnings, typos and other comments. [1] http://marc.info/?l=linux-kernel&m=149269778606030&w=2 Kang Luwei (3): fpga: intel: add FPGA Management Engine driver basic framework fpga: intel: fme: add header sub feature support fpga: intel: fme: add partial reconfiguration sub feature support Wu Hao (14): docs: fpga: add a document for Intel FPGA driver overview fpga: add FPGA device framework fpga: bridge: remove OF dependency for fpga-bridge fpga: mgr: add region_id to fpga_image_info fpga: mgr: add status for fpga-mgr fpga: intel: pcie: adds fpga_for_each_port callback for fme device fpga: intel: fme: add FPGA_GET_API_VERSION/CHECK_EXTENSION ioctls support fpga: intel: add fpga manager platform driver for FME fpga: intel: add fpga bridge platform driver for FME fpga: intel: add fpga region platform driver for FME fpga: intel: add FPGA Accelerated Function Unit driver basic framework fpga: intel: afu: add header sub feature support fpga: intel: afu add FPGA_GET_API_VERSION/CHECK_EXTENSION ioctls support fpga: intel: afu: add FPGA_PORT_DMA_MAP/UNMAP ioctls support Xiao Guangrong (4): fpga: intel: pcie: parse feature list and create platform device for features. fpga: intel: pcie: add chardev support for feature devices fpga: intel: add feature device infrastructure fpga: intel: afu: add user afu sub feature support Zhang Yi (1): fpga: intel: add FPGA PCIe device driver Documentation/ABI/testing/sysfs-class-fpga-dev | 5 + Documentation/ABI/testing/sysfs-class-fpga-manager | 10 + .../ABI/testing/sysfs-platform-intel-fpga-afu | 16 + .../ABI/testing/sysfs-platform-intel-fpga-fme | 19 + .../ABI/testing/sysfs-platform-intel-fpga-fme-mgr | 8 + Documentation/fpga/intel-fpga.txt | 256 +++++ Documentation/ioctl/ioctl-number.txt | 1 + drivers/fpga/Kconfig | 73 +- drivers/fpga/Makefile | 16 + drivers/fpga/fpga-dev.c | 118 +++ drivers/fpga/fpga-mgr.c | 24 + drivers/fpga/intel-afu-dma-region.c | 372 ++++++++ drivers/fpga/intel-afu-main.c | 469 +++++++++ drivers/fpga/intel-afu-region.c | 127 +++ drivers/fpga/intel-afu.h | 70 ++ drivers/fpga/intel-feature-dev.c | 272 ++++++ drivers/fpga/intel-feature-dev.h | 515 ++++++++++ drivers/fpga/intel-fme-main.c | 265 ++++++ drivers/fpga/intel-fme-pr.c | 494 ++++++++++ drivers/fpga/intel-fme.h | 57 ++ drivers/fpga/intel-fpga-fme-br.c | 77 ++ drivers/fpga/intel-fpga-fme-mgr.c | 307 ++++++ drivers/fpga/intel-fpga-fme-region.c | 91 ++ drivers/fpga/intel-pcie.c | 1003 ++++++++++++++++++++ include/linux/fpga/fpga-dev.h | 31 + include/linux/fpga/fpga-mgr.h | 10 + include/uapi/linux/intel-fpga.h | 175 ++++ 27 files changed, 4880 insertions(+), 1 deletion(-) create mode 100644 Documentation/ABI/testing/sysfs-class-fpga-dev create mode 100644 Documentation/ABI/testing/sysfs-platform-intel-fpga-afu create mode 100644 Documentation/ABI/testing/sysfs-platform-intel-fpga-fme create mode 100644 Documentation/ABI/testing/sysfs-platform-intel-fpga-fme-mgr create mode 100644 Documentation/fpga/intel-fpga.txt create mode 100644 drivers/fpga/fpga-dev.c create mode 100644 drivers/fpga/intel-afu-dma-region.c create mode 100644 drivers/fpga/intel-afu-main.c create mode 100644 drivers/fpga/intel-afu-region.c create mode 100644 drivers/fpga/intel-afu.h create mode 100644 drivers/fpga/intel-feature-dev.c create mode 100644 drivers/fpga/intel-feature-dev.h create mode 100644 drivers/fpga/intel-fme-main.c create mode 100644 drivers/fpga/intel-fme-pr.c create mode 100644 drivers/fpga/intel-fme.h create mode 100644 drivers/fpga/intel-fpga-fme-br.c create mode 100644 drivers/fpga/intel-fpga-fme-mgr.c create mode 100644 drivers/fpga/intel-fpga-fme-region.c create mode 100644 drivers/fpga/intel-pcie.c create mode 100644 include/linux/fpga/fpga-dev.h create mode 100644 include/uapi/linux/intel-fpga.h -- 1.8.3.1
