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Fri, 01 Aug 2025 00:01:54 -0700 (PDT) Received: from hsinchu26.internal.sifive.com ([210.176.154.34]) by smtp.gmail.com with ESMTPSA id d2e1a72fcca58-76bccfbd1a7sm3319043b3a.73.2025.08.01.00.01.51 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 01 Aug 2025 00:01:53 -0700 (PDT) From: Nick Hu To: conor@kernel.org, Alexandre Ghiti , Paul Walmsley , Palmer Dabbelt , devicetree@vger.kernel.org, linux-riscv@lists.infradead.org, linux-kernel@vger.kernel.org Cc: Nick Hu , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Palmer Dabbelt , Albert Ou , Samuel Holland Subject: [PATCH v2] dt-bindings: riscv: Add SiFive vendor extensions description Date: Fri, 1 Aug 2025 15:01:12 +0800 Message-Id: <20250801070112.12071-1-nick.hu@sifive.com> X-Mailer: git-send-email 2.17.1 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" 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.c= om/ Changes in v2: - Update the message to indicate the user of the extensions. Signed-off-by: Nick Hu Acked-by: Conor Dooley --- .../devicetree/bindings/riscv/extensions.yaml | 18 ++++++++++++++++++ 1 file changed, 18 insertions(+) diff --git a/Documentation/devicetree/bindings/riscv/extensions.yaml b/Docu= mentation/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 =20 # 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 executi= ng + the instruction. + - const: xsfvqmaccdod description: SiFive Int8 Matrix Multiplication Extensions Specification. --=20 2.17.1