Linux ARM-MSM sub-architecture
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From: Konrad Dybcio <konradybcio@kernel.org>
To: Rob Herring <robh@kernel.org>,
	Krzysztof Kozlowski <krzk+dt@kernel.org>,
	 Conor Dooley <conor+dt@kernel.org>,
	Bjorn Andersson <andersson@kernel.org>,
	 Andrew Lunn <andrew+netdev@lunn.ch>,
	 "David S. Miller" <davem@davemloft.net>,
	Eric Dumazet <edumazet@google.com>,
	 Jakub Kicinski <kuba@kernel.org>,
	Paolo Abeni <pabeni@redhat.com>,  Alex Elder <elder@kernel.org>
Cc: Marijn Suijten <marijn.suijten@somainline.org>,
	 linux-arm-msm@vger.kernel.org, devicetree@vger.kernel.org,
	 linux-kernel@vger.kernel.org, netdev@vger.kernel.org,
	 Konrad Dybcio <konrad.dybcio@oss.qualcomm.com>,
	 Krzysztof Kozlowski <krzysztof.kozlowski@oss.qualcomm.com>,
	 Alex Elder <elder@riscstar.com>
Subject: [PATCH net-next v6 1/3] dt-bindings: sram: qcom,imem: Allow modem-tables subnode
Date: Mon, 02 Mar 2026 16:58:43 +0100	[thread overview]
Message-ID: <20260302-topic-ipa_imem-v6-1-c0ebbf3eae9f@oss.qualcomm.com> (raw)
In-Reply-To: <20260302-topic-ipa_imem-v6-0-c0ebbf3eae9f@oss.qualcomm.com>

From: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com>

The IP Accelerator hardware/firmware owns a sizeable region within the
IMEM, named 'modem-tables', containing various packet processing
configuration data.

It's not actually accessed by the OS, although we have to IOMMU-map it
with the IPA device, so that presumably the firmware can act upon it.

Allow it as a subnode of IMEM.

Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@oss.qualcomm.com>
Reviewed-by: Alex Elder <elder@riscstar.com>
Signed-off-by: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com>
---
 Documentation/devicetree/bindings/sram/qcom,imem.yaml | 14 ++++++++++++++
 1 file changed, 14 insertions(+)

diff --git a/Documentation/devicetree/bindings/sram/qcom,imem.yaml b/Documentation/devicetree/bindings/sram/qcom,imem.yaml
index 6a627c57ae2f..c63026904061 100644
--- a/Documentation/devicetree/bindings/sram/qcom,imem.yaml
+++ b/Documentation/devicetree/bindings/sram/qcom,imem.yaml
@@ -67,6 +67,20 @@ properties:
     $ref: /schemas/power/reset/syscon-reboot-mode.yaml#
 
 patternProperties:
+  "^modem-tables@[0-9a-f]+$":
+    type: object
+    description:
+      Region containing packet processing configuration for the IP Accelerator.
+
+    properties:
+      reg:
+        maxItems: 1
+
+    required:
+      - reg
+
+    additionalProperties: false
+
   "^pil-reloc@[0-9a-f]+$":
     $ref: /schemas/remoteproc/qcom,pil-info.yaml#
     description: Peripheral image loader relocation region

-- 
2.53.0


  reply	other threads:[~2026-03-02 15:58 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2026-03-02 15:58 [net-next PATCH v6 0/3] Grab IPA IMEM slice through DT Konrad Dybcio
2026-03-02 15:58 ` Konrad Dybcio [this message]
2026-03-02 15:58 ` [PATCH net-next v6 2/3] dt-bindings: net: qcom,ipa: Add sram property for describing IMEM slice Konrad Dybcio
2026-03-02 15:58 ` [PATCH net-next v6 3/3] net: ipa: Grab IMEM slice base/size from DTS Konrad Dybcio
2026-03-04  1:30 ` [net-next PATCH v6 0/3] Grab IPA IMEM slice through DT patchwork-bot+netdevbpf

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