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Thu, 27 Mar 2025 12:36:27 -0700 (PDT) Received: from atishp.ba.rivosinc.com ([64.71.180.162]) by smtp.gmail.com with ESMTPSA id 98e67ed59e1d1-3039f6b638csm2624220a91.44.2025.03.27.12.36.26 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 27 Mar 2025 12:36:27 -0700 (PDT) From: Atish Patra Date: Thu, 27 Mar 2025 12:35:51 -0700 Subject: [PATCH v5 10/21] dt-bindings: riscv: add Counter delegation ISA extensions description MIME-Version: 1.0 Message-Id: <20250327-counter_delegation-v5-10-1ee538468d1b@rivosinc.com> References: <20250327-counter_delegation-v5-0-1ee538468d1b@rivosinc.com> In-Reply-To: <20250327-counter_delegation-v5-0-1ee538468d1b@rivosinc.com> To: Paul Walmsley , Palmer Dabbelt , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Anup Patel , Atish Patra , Will Deacon , Mark Rutland , Peter Zijlstra , Ingo Molnar , Arnaldo Carvalho de Melo , Namhyung Kim , Alexander Shishkin , Jiri Olsa , Ian Rogers , Adrian Hunter , weilin.wang@intel.com Cc: linux-riscv@lists.infradead.org, linux-kernel@vger.kernel.org, Conor Dooley , devicetree@vger.kernel.org, kvm@vger.kernel.org, kvm-riscv@lists.infradead.org, linux-arm-kernel@lists.infradead.org, linux-perf-users@vger.kernel.org, Atish Patra X-Mailer: b4 0.15-dev-42535 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20250327_123629_072149_B8C134FF X-CRM114-Status: GOOD ( 11.15 ) X-BeenThere: linux-riscv@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-riscv" Errors-To: linux-riscv-bounces+linux-riscv=archiver.kernel.org@lists.infradead.org Add description for the Smcdeleg/Ssccfg extension. Signed-off-by: Atish Patra Acked-by: Conor Dooley --- .../devicetree/bindings/riscv/extensions.yaml | 45 ++++++++++++++++++++++ 1 file changed, 45 insertions(+) diff --git a/Documentation/devicetree/bindings/riscv/extensions.yaml b/Documentation/devicetree/bindings/riscv/extensions.yaml index c2025949295f..f34bc66940c0 100644 --- a/Documentation/devicetree/bindings/riscv/extensions.yaml +++ b/Documentation/devicetree/bindings/riscv/extensions.yaml @@ -128,6 +128,13 @@ properties: changes to interrupts as frozen at commit ccbddab ("Merge pull request #42 from riscv/jhauser-2023-RC4") of riscv-aia. + - const: smcdeleg + description: | + The standard Smcdeleg supervisor-level extension for the machine mode + to delegate the hpmcounters to supvervisor mode so that they are + directlyi accessible in the supervisor mode as ratified in the + 20240213 version of the privileged ISA specification. + - const: smcsrind description: | The standard Smcsrind supervisor-level extension extends the @@ -175,6 +182,14 @@ properties: behavioural changes to interrupts as frozen at commit ccbddab ("Merge pull request #42 from riscv/jhauser-2023-RC4") of riscv-aia. + - const: ssccfg + description: | + The standard Ssccfg supervisor-level extension for configuring + the delegated hpmcounters to be accessible directly in supervisor + mode as ratified in the 20240213 version of the privileged ISA + specification. This extension depends on Sscsrind, Smcdeleg, Zihpm, + Zicntr extensions. + - const: sscofpmf description: | The standard Sscofpmf supervisor-level extension for count overflow @@ -695,6 +710,36 @@ properties: then: contains: const: zca + # Smcdeleg depends on Sscsrind, Zihpm, Zicntr + - if: + contains: + const: smcdeleg + then: + allOf: + - contains: + const: sscsrind + - contains: + const: zihpm + - contains: + const: zicntr + # Ssccfg depends on Smcdeleg, Sscsrind, Zihpm, Zicntr, Sscofpmf, Smcntrpmf + - if: + contains: + const: ssccfg + then: + allOf: + - contains: + const: smcdeleg + - contains: + const: sscsrind + - contains: + const: sscofpmf + - contains: + const: smcntrpmf + - contains: + const: zihpm + - contains: + const: zicntr allOf: # Zcf extension does not exist on rv64