linux-kernel - [PATCH v2 1/3] arm64: dts: qcom: sc7280: Add memory region for audiopd

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Message-ID: <20250516110029.1637270-2-quic_lxu5@quicinc.com>
Date: Fri, 16 May 2025 16:30:27 +0530
From: Ling Xu <quic_lxu5@...cinc.com>
To: <cros-qcom-dts-watchers@...omium.org>, <andersson@...nel.org>,
        <konradybcio@...nel.org>, <robh@...nel.org>, <krzk+dt@...nel.org>,
        <conor+dt@...nel.org>, <linux-arm-msm@...r.kernel.org>,
        <devicetree@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
        <quic_lxu5@...cinc.com>, <ekansh.gupta@....qualcomm.com>
Subject: [PATCH v2 1/3] arm64: dts: qcom: sc7280: Add memory region for audiopd

Add reserved memory region and VMIDs for audio PD dynamic loading and
remote heap memory requirements.

Signed-off-by: Ling Xu <quic_lxu5@...cinc.com>
---
 arch/arm64/boot/dts/qcom/sc7280.dtsi | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/arch/arm64/boot/dts/qcom/sc7280.dtsi b/arch/arm64/boot/dts/qcom/sc7280.dtsi
index 8e86d75cc6b4..d9af79ff8c4e 100644
--- a/arch/arm64/boot/dts/qcom/sc7280.dtsi
+++ b/arch/arm64/boot/dts/qcom/sc7280.dtsi
@@ -188,6 +188,14 @@ rmtfs_mem: rmtfs@...00000 {
 			qcom,client-id = <1>;
 			qcom,vmid = <QCOM_SCM_VMID_MSS_MSA>;
 		};
+
+		adsp_rpc_remote_heap_mem: adsp-rpc-remote-heap {
+			compatible = "shared-dma-pool";
+			size = <0x0 0x800000>;
+			alignment = <0x0 0x100000>;
+			alloc-ranges = <0x0 0x80000000 0x0 0x40000000>;
+			no-map;
+		};
 	};
 
 	cpus {
@@ -3863,6 +3871,9 @@ fastrpc {
 					qcom,glink-channels = "fastrpcglink-apps-dsp";
 					label = "adsp";
 					qcom,non-secure-domain;
+					memory-region = <&adsp_rpc_remote_heap_mem>;
+					qcom,vmids = <QCOM_SCM_VMID_LPASS>,
+							  <QCOM_SCM_VMID_ADSP_HEAP>;
 					#address-cells = <1>;
 					#size-cells = <0>;
 
-- 
2.34.1