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

Co-developed-by: Ekansh Gupta <ekansh.gupta@oss.qualcomm.com>
Signed-off-by: Ekansh Gupta <ekansh.gupta@oss.qualcomm.com>
Signed-off-by: Ling Xu <quic_lxu5@quicinc.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 b1cc3bc1aec8..982f120511a0 100644
--- a/arch/arm64/boot/dts/qcom/sc7280.dtsi
+++ b/arch/arm64/boot/dts/qcom/sc7280.dtsi
@@ -189,6 +189,14 @@ rmtfs_mem: rmtfs@9c900000 {
 			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 {
@@ -3899,6 +3907,9 @@ 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

On Thu, Jun 26, 2025 at 02:59:51PM +0530, Ling Xu wrote:
> Add reserved memory region and VMIDs for audio PD dynamic loading and
> remote heap memory requirements.

Please specify whether this is required for a standard audio playback /
capture or for some extended usecases.

> 
> Co-developed-by: Ekansh Gupta <ekansh.gupta@oss.qualcomm.com>
> Signed-off-by: Ekansh Gupta <ekansh.gupta@oss.qualcomm.com>
> Signed-off-by: Ling Xu <quic_lxu5@quicinc.com>
> ---
>  arch/arm64/boot/dts/qcom/sc7280.dtsi | 11 +++++++++++
>  1 file changed, 11 insertions(+)
> 

-- 
With best wishes
Dmitry