[RFC PATCH 1/9] dt-bindings: riscv: Add pointer masking ISA extensions

From: Samuel Holland <samuel.holland@sifive.com>
To: Palmer Dabbelt <palmer@dabbelt.com>, linux-riscv@lists.infradead.org
Cc: devicetree@vger.kernel.org,
	Catalin Marinas <catalin.marinas@arm.com>,
	linux-kernel@vger.kernel.org, tech-j-ext@lists.risc-v.org,
	Conor Dooley <conor@kernel.org>,
	kasan-dev@googlegroups.com, Evgenii Stepanov <eugenis@google.com>,
	Krzysztof Kozlowski <krzysztof.kozlowski+dt@linaro.org>,
	Rob Herring <robh+dt@kernel.org>,
	Samuel Holland <samuel.holland@sifive.com>,
	Albert Ou <aou@eecs.berkeley.edu>,
	Paul Walmsley <paul.walmsley@sifive.com>
Subject: [RFC PATCH 1/9] dt-bindings: riscv: Add pointer masking ISA extensions
Date: Tue, 19 Mar 2024 14:58:27 -0700	[thread overview]
Message-ID: <20240319215915.832127-2-samuel.holland@sifive.com> (raw)
In-Reply-To: <20240319215915.832127-1-samuel.holland@sifive.com>

The RISC-V Pointer Masking specification defines three extensions:
Smmpm, Smnpm, and Ssnpm. Document the behavior as of the current draft
of the specification, which is version 0.8.4.

Signed-off-by: Samuel Holland <samuel.holland@sifive.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 63d81dc895e5..bb7d5d84f31f 100644
--- a/Documentation/devicetree/bindings/riscv/extensions.yaml
+++ b/Documentation/devicetree/bindings/riscv/extensions.yaml
@@ -128,6 +128,18 @@ properties:
             changes to interrupts as frozen at commit ccbddab ("Merge pull
             request #42 from riscv/jhauser-2023-RC4") of riscv-aia.
 
+        - const: smmpm
+          description: |
+            The standard Smmpm extension for M-mode pointer masking as defined
+            at commit a1e68469c60 ("Minor correction to pointer masking spec.")
+            of riscv-j-extension.
+
+        - const: smnpm
+          description: |
+            The standard Smnpm extension for next-mode pointer masking as defined
+            at commit a1e68469c60 ("Minor correction to pointer masking spec.")
+            of riscv-j-extension.
+
         - const: smstateen
           description: |
             The standard Smstateen extension for controlling access to CSRs
@@ -147,6 +159,12 @@ properties:
             and mode-based filtering as ratified at commit 01d1df0 ("Add ability
             to manually trigger workflow. (#2)") of riscv-count-overflow.
 
+        - const: ssnpm
+          description: |
+            The standard Ssnpm extension for next-mode pointer masking as defined
+            at commit a1e68469c60 ("Minor correction to pointer masking spec.")
+            of riscv-j-extension.
+
         - const: sstc
           description: |
             The standard Sstc supervisor-level extension for time compare as
-- 
2.43.1

