linux-kernel - [PATCH v2 08/21] dt-bindings: riscv: add Ssccfg ISA extension description

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Message-Id: <20250114-counter_delegation-v2-8-8ba74cdb851b@rivosinc.com>
Date: Tue, 14 Jan 2025 14:57:33 -0800
From: Atish Patra <atishp@...osinc.com>
To: Paul Walmsley <paul.walmsley@...ive.com>, 
 Palmer Dabbelt <palmer@...belt.com>, Rob Herring <robh@...nel.org>, 
 Krzysztof Kozlowski <krzk+dt@...nel.org>, 
 Conor Dooley <conor+dt@...nel.org>, Anup Patel <anup@...infault.org>, 
 Atish Patra <atishp@...shpatra.org>, Will Deacon <will@...nel.org>, 
 Mark Rutland <mark.rutland@....com>, Peter Zijlstra <peterz@...radead.org>, 
 Ingo Molnar <mingo@...hat.com>, Arnaldo Carvalho de Melo <acme@...nel.org>, 
 Namhyung Kim <namhyung@...nel.org>, 
 Alexander Shishkin <alexander.shishkin@...ux.intel.com>, 
 Jiri Olsa <jolsa@...nel.org>, Ian Rogers <irogers@...gle.com>, 
 Adrian Hunter <adrian.hunter@...el.com>, weilin.wang@...el.com
Cc: linux-riscv@...ts.infradead.org, linux-kernel@...r.kernel.org, 
 Palmer Dabbelt <palmer@...ive.com>, Conor Dooley <conor@...nel.org>, 
 devicetree@...r.kernel.org, kvm@...r.kernel.org, 
 kvm-riscv@...ts.infradead.org, linux-arm-kernel@...ts.infradead.org, 
 linux-perf-users@...r.kernel.org, Atish Patra <atishp@...osinc.com>
Subject: [PATCH v2 08/21] dt-bindings: riscv: add Ssccfg ISA extension
 description

Add description for the Ssccfg extension.

Signed-off-by: Atish Patra <atishp@...osinc.com>
---
 Documentation/devicetree/bindings/riscv/extensions.yaml | 13 +++++++++++++
 1 file changed, 13 insertions(+)

diff --git a/Documentation/devicetree/bindings/riscv/extensions.yaml b/Documentation/devicetree/bindings/riscv/extensions.yaml
index 0cfdaa4552a6..c8685fb1fb42 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. This extension depend
+	    on Sscsrind, Zihpm, Zicntr extensions.
+
         - const: smmpm
           description: |
             The standard Smmpm extension for M-mode pointer masking as
@@ -166,6 +173,12 @@ properties:
             interrupt architecture for supervisor-mode-visible csr and
             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. This extension depend on Sscsrind, Smcdeleg, Zihpm, Zicntr
+            extensions.
 
         - const: sscofpmf
           description: |

-- 
2.34.1