On Fri, Jul 17, 2015 at 10:51:10AM -0500, atull@xxxxxxxxxxxxxxxxxxxxx wrote: > From: Alan Tull <atull@xxxxxxxxxxxxxxxxxxxxx> > > This patchset adds two chunks plus documentation: > * fpga manager core: exports ABI functions that write an image to a FPGA > * DT Overlay support: simple-fpga-bus to handle FPGA from a DT overlay > > The core's ABI is minimal to start with: only 6 functions. This gives a > common interface for programming various FPGA such that any higher level > interfaces such as the DT Overlays or anything else that is added can be > shared and not be manufacturor-specific. > > The DT Overlays support exists for the usage where the FPGA will contain > some "hardware" that will need drivers. Where that use model is not > appealing, the core ABI can be used to add a different use model such as > using an FPGA as acceleration as has been discussed. > > This patchset gets rid of the sysfs controls that allowed direct > control of a FPGA from userspace. > > This patchset is under drivers/staging as the interface could change. > > The bindings for the socpfga fpga manager already are upstreamed as > 1b4e119 Alan Tull : doc: add bindings document for altera fpga manager > > The DT Support is dependent on Pantelis's dtc overlay patches from > https://github.com/pantoniou/dtc.git > and his DT overlays configfs interface patches and fixes from > https://github.com/pantoniou/linux-beagle-track-mainline > > efb0c04 Pantelis Antoniou : gcl: Fix resource linking > 85e785e Pantelis Antoniou : ARM: DT: Enable symbols when CONFIG_OF_OVERLAY is used > af0321f Pantelis Antoniou : OF: DT-Overlay configfs interface (v5) > 4c1c675 Pantelis Antoniou : configfs: Implement binary attributes (v4) > > > Alan Tull (7): > staging: usage documentation for FPGA manager core > staging: usage documentation for simple fpga bus > staging: add bindings document for simple fpga bus > staging: fpga manager: add sysfs interface document > staging: fpga manager core > staging: add simple-fpga-bus > staging: fpga manager: add driver for socfpga fpga manager > > drivers/staging/Kconfig | 2 + > drivers/staging/Makefile | 1 + > .../Documentation/ABI/sysfs-class-fpga-manager | 26 + > .../Documentation/bindings/simple-fpga-bus.txt | 61 ++ > drivers/staging/fpga/Documentation/fpga-mgr.txt | 117 ++++ > .../staging/fpga/Documentation/simple-fpga-bus.txt | 48 ++ > drivers/staging/fpga/Kconfig | 31 + > drivers/staging/fpga/Makefile | 10 + > drivers/staging/fpga/fpga-mgr.c | 373 ++++++++++++ > drivers/staging/fpga/simple-fpga-bus.c | 323 ++++++++++ > drivers/staging/fpga/socfpga.c | 616 ++++++++++++++++++++ All drivers/staging/*/ directories need a TODO file that lists what needs to be done to it in order to get the code out of staging. Please redo the series and add that. > include/linux/fpga/fpga-mgr.h | 127 ++++ This should be within drivers/staging/ all staging code should be self-contained. Why isn't this going into the "real" part of the kernel? Why staging? thanks, greg k-h _______________________________________________ devel mailing list devel@xxxxxxxxxxxxxxxxxxxxxx http://driverdev.linuxdriverproject.org/mailman/listinfo/driverdev-devel
