linux-kernel - [PATCH 1/2] dt-bindings: fpga: Add compatible value for Xilinx DFX AXI shutdown manger

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [thread-next>] [day] [month] [year] [list]

Date:   Fri, 15 Jan 2021 07:04:30 +0530
From:   Nava kishore Manne <nava.manne@...inx.com>
To:     <mdf@...nel.org>, <trix@...hat.com>, <robh+dt@...nel.org>,
        <michal.simek@...inx.com>, <linux-fpga@...r.kernel.org>,
        <devicetree@...r.kernel.org>,
        <linux-arm-kernel@...ts.infradead.org>,
        <linux-kernel@...r.kernel.org>
CC:     <git@...inx.com>, <chinnikishore369@...il.com>,
        Nava kishore Manne <nava.manne@...inx.com>
Subject: [PATCH 1/2] dt-bindings: fpga: Add compatible value for Xilinx DFX AXI shutdown manger

This patch Adds compatible value for Xilinx Dynamic Function eXchnage(DFX)
AXI Shutdown manager IP.

Signed-off-by: Nava kishore Manne <nava.manne@...inx.com>
---
 .../bindings/fpga/xilinx-pr-decoupler.txt     | 19 ++++++++++++++++---
 1 file changed, 16 insertions(+), 3 deletions(-)

diff --git a/Documentation/devicetree/bindings/fpga/xilinx-pr-decoupler.txt b/Documentation/devicetree/bindings/fpga/xilinx-pr-decoupler.txt
index 4284d293fa61..42fca058a5f4 100644
--- a/Documentation/devicetree/bindings/fpga/xilinx-pr-decoupler.txt
+++ b/Documentation/devicetree/bindings/fpga/xilinx-pr-decoupler.txt
@@ -7,13 +7,26 @@ changes from passing through the bridge.  The controller can also
 couple / enable the bridges which allows traffic to pass through the
 bridge normally.
 
+Xilinx LogiCORE Dynamic Function eXchange(DFX) AXI shutdown manager
+Softcore
+
+The Xilinx LogiCORE Dynamic Function eXchange(DFX) AXI shutdown manager
+manages one or more shutdown managers / fpga bridges.
+The controller can shutdown/passthrough the bridges which 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 (DFX), preventing system
+deadlock that can occur if AXI transactions are interrupted by DFX
+
 The Driver supports only MMIO handling. A PR region can have multiple
-PR Decouplers which can be handled independently or chained via decouple/
-decouple_status signals.
+PR Decouplers/AXI shutdown manager which can be handled independently
+or chained via decouple/ decouple_status signals.
 
 Required properties:
 - compatible		: Should contain "xlnx,pr-decoupler-1.00" followed by
-                          "xlnx,pr-decoupler"
+                          "xlnx,pr-decoupler" or
+			  "xlnx,dfx-axi-shutdown-manager-1.00" followed by
+			  "xlnx,dfx-axi-shutdown-manager"
 - regs			: base address and size for decoupler module
 - clocks		: input clock to IP
 - clock-names		: should contain "aclk"
-- 
2.18.0