linux-kernel - [PATCH v4 1/7] dt-bindings: riscv: Add xmipsexectl ISA extension description

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Message-Id: <20250625-p8700-pause-v4-1-6c7dd7f85756@htecgroup.com>
Date: Wed, 25 Jun 2025 16:20:56 +0200
From: Aleksa Paunovic via B4 Relay <devnull+aleksa.paunovic.htecgroup.com@...nel.org>
To: Rob Herring <robh@...nel.org>, Krzysztof Kozlowski <krzk+dt@...nel.org>, 
 Conor Dooley <conor+dt@...nel.org>, 
 Paul Walmsley <paul.walmsley@...ive.com>, 
 Palmer Dabbelt <palmer@...belt.com>, Albert Ou <aou@...s.berkeley.edu>, 
 Alexandre Ghiti <alex@...ti.fr>, Jonathan Corbet <corbet@....net>
Cc: Palmer Dabbelt <palmer@...ive.com>, Conor Dooley <conor@...nel.org>, 
 devicetree@...r.kernel.org, linux-riscv@...ts.infradead.org, 
 linux-kernel@...r.kernel.org, linux-doc@...r.kernel.org, 
 Aleksa Paunovic <aleksa.paunovic@...cgroup.com>
Subject: [PATCH v4 1/7] dt-bindings: riscv: Add xmipsexectl ISA extension
 description

From: Aleksa Paunovic <aleksa.paunovic@...cgroup.com>

The xmipsexectl extension is described in the MIPS RV64 P8700/P8700-F
Multiprocessing System Programmer’s Guide linked at [1].

Link: https://mips.com/wp-content/uploads/2025/06/P8700_Programmers_Reference_Manual_Rev1.84_5-31-2025.pdf

Signed-off-by: Aleksa Paunovic <aleksa.paunovic@...cgroup.com>
---
 Documentation/devicetree/bindings/riscv/extensions.yaml | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/Documentation/devicetree/bindings/riscv/extensions.yaml b/Documentation/devicetree/bindings/riscv/extensions.yaml
index ede6a58ccf5347d92785dc085a011052c1aade14..de41a6f074d3af2ceaf5293dfe75d16f43d416d6 100644
--- a/Documentation/devicetree/bindings/riscv/extensions.yaml
+++ b/Documentation/devicetree/bindings/riscv/extensions.yaml
@@ -662,6 +662,12 @@ properties:
             Registers in the AX45MP datasheet.
             https://www.andestech.com/wp-content/uploads/AX45MP-1C-Rev.-5.0.0-Datasheet.pdf
 
+        # MIPS
+        - const: xmipsexectl
+          description:
+            The MIPS extension for execution control as documented in
+            https://mips.com/wp-content/uploads/2025/06/P8700_Programmers_Reference_Manual_Rev1.84_5-31-2025.pdf
+
         # SiFive
         - const: xsfvqmaccdod
           description:

-- 
2.34.1