diff options
| author | Nava kishore Manne <nava.manne@xilinx.com> | 2021-02-11 10:41:48 +0530 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2021-03-24 08:26:26 +0100 |
| commit | 30a2ac9a8bb5fce15e617038bee8f26e5d090667 (patch) | |
| tree | 794ee7281b986306cdd3a10cb25176c454f29794 /drivers/fpga/Kconfig | |
| parent | 8058182fa4402361f25cd701bb90276fba331127 (diff) | |
fpga: Add support for Xilinx DFX AXI Shutdown manager
This patch adds support for Xilinx Dynamic Function eXchange(DFX) AXI
shutdown manager IP. It can be used to safely handling the AXI traffic
on a Reconfigurable Partition when it is undergoing dynamic reconfiguration
and there by preventing system deadlock that may occur if AXI transactions
are interrupted during reconfiguration.
PR-Decoupler and AXI shutdown manager are completely different IPs.
But both the IP registers are compatible and also both belong to the
same sub-system (fpga-bridge).So using same driver for both IP's.
Signed-off-by: Nava kishore Manne <nava.manne@xilinx.com>
Reviewed-by: Tom Rix <trix@redhat.com>
Signed-off-by: Moritz Fischer <mdf@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/fpga/Kconfig')
| -rw-r--r-- | drivers/fpga/Kconfig | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/drivers/fpga/Kconfig b/drivers/fpga/Kconfig index 5ff9438b7b46..d591dd9b7c60 100644 --- a/drivers/fpga/Kconfig +++ b/drivers/fpga/Kconfig @@ -118,10 +118,17 @@ config XILINX_PR_DECOUPLER depends on FPGA_BRIDGE depends on HAS_IOMEM help - Say Y to enable drivers for Xilinx LogiCORE PR Decoupler. + Say Y to enable drivers for Xilinx LogiCORE PR Decoupler + or Xilinx Dynamic Function eXchnage AIX Shutdown Manager. The PR Decoupler exists in the FPGA fabric to isolate one region of the FPGA from the busses while that region is being reprogrammed during partial reconfig. + The Dynamic Function eXchange AXI shutdown manager prevents + AXI traffic from passing through the bridge. The controller + safely handles AXI4MM and AXI4-Lite interfaces on a + Reconfigurable Partition when it is undergoing dynamic + reconfiguration, preventing the system deadlock that can + occur if AXI transactions are interrupted by DFX. config FPGA_REGION tristate "FPGA Region" |