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From: Karunika Choo <karunika.choo@arm.com>
To: dri-devel@lists.freedesktop.org
Cc: nd@arm.com, Boris Brezillon <boris.brezillon@collabora.com>,
	Steven Price <steven.price@arm.com>,
	Liviu Dudau <liviu.dudau@arm.com>,
	linux-kernel@vger.kernel.org,
	Maarten Lankhorst <maarten.lankhorst@linux.intel.com>,
	Maxime Ripard <mripard@kernel.org>,
	Thomas Zimmermann <tzimmermann@suse.de>,
	David Airlie <airlied@gmail.com>, Simona Vetter <simona@ffwll.ch>,
	Rob Herring <robh@kernel.org>,
	Krzysztof Kozlowski <krzk+dt@kernel.org>,
	Conor Dooley <conor+dt@kernel.org>,
	devicetree@vger.kernel.org
Subject: [PATCH v1 18/27] dt-bindings: gpu: panthor: Document AW assignment DT property
Date: Tue, 22 Sep 2026 21:45:12 +0100	[thread overview]
Message-ID: <20260922204535.2850094-19-karunika.choo@arm.com> (raw)
In-Reply-To: <20260922204535.2850094-1-karunika.choo@arm.com>

Introduce arm,access-window-mask property to allow partitions to define
the assigned access windows at probe time.

Signed-off-by: Karunika Choo <karunika.choo@arm.com>
---
 .../bindings/gpu/arm,mali-gen5-am-arbitration.yaml     | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/Documentation/devicetree/bindings/gpu/arm,mali-gen5-am-arbitration.yaml b/Documentation/devicetree/bindings/gpu/arm,mali-gen5-am-arbitration.yaml
index 9ea2b4bb9a344..4e7933829e2be 100644
--- a/Documentation/devicetree/bindings/gpu/arm,mali-gen5-am-arbitration.yaml
+++ b/Documentation/devicetree/bindings/gpu/arm,mali-gen5-am-arbitration.yaml
@@ -52,6 +52,15 @@ patternProperties:
           Hardware partition control index. Must identify a partition present on
           the GPU and be unique among this device's partition nodes.
 
+      arm,access-window-mask:
+        $ref: /schemas/types.yaml#/definitions/uint32
+        maximum: 0xffff
+        default: 0
+        description:
+          Initial access window assignment mask. Bit N selects global
+          access window ID N. Masks must be disjoint across partitions.
+          If omitted, no access windows are assigned by default.
+
     required:
       - reg
       - interrupts
@@ -113,6 +122,7 @@ examples:
             reg = <0x50000 0x10000>;
             interrupts = <GIC_SPI 92 IRQ_TYPE_LEVEL_HIGH 0>;
             arm,id = <0>;
+            arm,access-window-mask = <0xffff>;
         };
 
         resource-group@c0000 {
-- 
2.43.0


  parent reply	other threads:[~2026-09-22 20:47 UTC|newest]

Thread overview: 11+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <20260922204535.2850094-1-karunika.choo@arm.com>
2026-09-22 20:45 ` [PATCH v1 07/27] dt-bindings: gpu: mali-valhall-csf: Add Mali Gen5 AM compatible Karunika Choo
2026-09-28 10:02   ` Krzysztof Kozlowski
2026-09-22 20:45 ` [PATCH v1 10/27] dt-bindings: gpu: panthor: Document panthor-system bindings Karunika Choo
2026-09-22 20:56   ` sashiko-bot
2026-09-28 10:05   ` Krzysztof Kozlowski
2026-09-22 20:45 ` [PATCH v1 12/27] dt-bindings: gpu: panthor: Document panthor-arbitration bindings Karunika Choo
2026-09-22 20:59   ` sashiko-bot
2026-09-28 10:06   ` Krzysztof Kozlowski
2026-09-22 20:45 ` Karunika Choo [this message]
2026-09-22 20:57   ` [PATCH v1 18/27] dt-bindings: gpu: panthor: Document AW assignment DT property sashiko-bot
2026-09-28 10:06   ` Krzysztof Kozlowski

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