linux-kernel - [PATCH v2] dt-bindings: riscv: Add SiFive vendor extensions description

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]

Message-Id: <20250801070112.12071-1-nick.hu@sifive.com>
Date: Fri,  1 Aug 2025 15:01:12 +0800
From: Nick Hu <nick.hu@...ive.com>
To: conor@...nel.org,
	Alexandre Ghiti <alex@...ti.fr>,
	Paul Walmsley <paul.walmsley@...ive.com>,
	Palmer Dabbelt <palmer@...ive.com>,
	devicetree@...r.kernel.org,
	linux-riscv@...ts.infradead.org,
	linux-kernel@...r.kernel.org
Cc: Nick Hu <nick.hu@...ive.com>,
	Rob Herring <robh@...nel.org>,
	Krzysztof Kozlowski <krzk+dt@...nel.org>,
	Conor Dooley <conor+dt@...nel.org>,
	Palmer Dabbelt <palmer@...belt.com>,
	Albert Ou <aou@...s.berkeley.edu>,
	Samuel Holland <samuel.holland@...ive.com>
Subject: [PATCH v2] dt-bindings: riscv: Add SiFive vendor extensions description

Add description for SiFive vendor extensions "xsfcflushdlone",
"xsfpgflushdlone" and "xsfcease". This is used in the SBI
implementation [1].

[1] https://lore.kernel.org/opensbi/20250708074940.10904-1-nick.hu@sifive.com/

Changes in v2:
- Update the message to indicate the user of the extensions.

Signed-off-by: Nick Hu <nick.hu@...ive.com>
---
 .../devicetree/bindings/riscv/extensions.yaml  | 18 ++++++++++++++++++
 1 file changed, 18 insertions(+)

diff --git a/Documentation/devicetree/bindings/riscv/extensions.yaml b/Documentation/devicetree/bindings/riscv/extensions.yaml
index ede6a58ccf53..5638297759df 100644
--- a/Documentation/devicetree/bindings/riscv/extensions.yaml
+++ b/Documentation/devicetree/bindings/riscv/extensions.yaml
@@ -663,6 +663,24 @@ properties:
             https://www.andestech.com/wp-content/uploads/AX45MP-1C-Rev.-5.0.0-Datasheet.pdf
 
         # SiFive
+        - const: xsfcease
+          description:
+            SiFive CEASE Instruction Extensions Specification.
+            See more details in
+            https://www.sifive.com/document-file/freedom-u740-c000-manual
+
+        - const: xsfcflushdlone
+          description:
+            SiFive L1D Cache Flush Instruction Extensions Specification.
+            See more details in
+            https://www.sifive.com/document-file/freedom-u740-c000-manual
+
+        - const: xsfpgflushdlone
+          description:
+            SiFive PGFLUSH Instruction Extensions for the power management. The
+            CPU will flush the L1D and enter the cease state after executing
+            the instruction.
+
         - const: xsfvqmaccdod
           description:
             SiFive Int8 Matrix Multiplication Extensions Specification.
-- 
2.17.1