This patchset introduces FPGA capabilities, to model what operations
an FPGA Manager low level driver supports.
Exposing them via sysfs allows userland to make smart decisions which FPGA to
deploy
an image to in case there are multiple FPGAs with different capabilities
available.
As an example of a capability: Support for encrypted bitstreams to Zynq &
SocFPGA.
Please note that [4/4] is separate as I couldn't find info on how encrypted
bitstreams
work on socfpga platforms, however Alan mentioned during an offline discussion
it should
'just work'.
On Zynq using the HMAC & AES units in the devcfg peripheral only work when the
system
has been booted in Secure Mode, otherwise the boot rom will disable them.
The FPGA manager capability will only get exposed if available.
Thanks,
Moritz
Moritz Fischer (4):
fpga mgr: Introduce FPGA capabilities
fpga mgr: Expose FPGA capabilities to userland via sysfs
fpga mgr: zynq: Add support for encrypted bitstreams
fpga mgr: socfpga: Expose support for encrypted bitstreams
Documentation/ABI/testing/sysfs-class-fpga-manager | 16 +++++++
drivers/fpga/fpga-mgr.c | 42 ++++++++++++++++++
drivers/fpga/socfpga.c | 11 ++---
drivers/fpga/zynq-fpga.c | 28 ++++++++++--
include/linux/fpga/fpga-mgr.h | 50 +++++++++++++++++++++-
5 files changed, 138 insertions(+), 9 deletions(-)
--
2.10.0
