[PATCH] arm64: dts: qcom: sm8250: Add memory-region for audio PD
From: Vinayak Katoch
Date: Fri Jun 19 2026 - 05:50:53 EST
Reserve memory region for audio PD dynamic loading and remote heap
requirements. Add the required VMID list for memory ownership
transfers.
Signed-off-by: Vinayak Katoch <vinayak.katoch@xxxxxxxxxxxxxxxx>
---
arch/arm64/boot/dts/qcom/sm8250.dtsi | 12 ++++++++++++
1 file changed, 12 insertions(+)
diff --git a/arch/arm64/boot/dts/qcom/sm8250.dtsi b/arch/arm64/boot/dts/qcom/sm8250.dtsi
index 7076720413ab..3f2f1b644db9 100644
--- a/arch/arm64/boot/dts/qcom/sm8250.dtsi
+++ b/arch/arm64/boot/dts/qcom/sm8250.dtsi
@@ -10,6 +10,7 @@
#include <dt-bindings/clock/qcom,gpucc-sm8250.h>
#include <dt-bindings/clock/qcom,rpmh.h>
#include <dt-bindings/dma/qcom-gpi.h>
+#include <dt-bindings/firmware/qcom,scm.h>
#include <dt-bindings/gpio/gpio.h>
#include <dt-bindings/interconnect/qcom,osm-l3.h>
#include <dt-bindings/interconnect/qcom,sm8250.h>
@@ -863,6 +864,14 @@ cdsp_secure_heap: memory@8bf00000 {
reg = <0x0 0x8bf00000 0x0 0x4600000>;
no-map;
};
+
+ adsp_rpc_remote_heap_mem: adsp-rpc-remote-heap {
+ compatible = "shared-dma-pool";
+ alloc-ranges = <0x0 0x80000000 0x0 0x80000000>;
+ reusable;
+ alignment = <0x0 0x400000>;
+ size = <0x0 0x800000>;
+ };
};
smem {
@@ -6077,6 +6086,9 @@ fastrpc {
compatible = "qcom,fastrpc";
qcom,glink-channels = "fastrpcglink-apps-dsp";
label = "adsp";
+ memory-region = <&adsp_rpc_remote_heap_mem>;
+ qcom,vmids = <QCOM_SCM_VMID_LPASS
+ QCOM_SCM_VMID_ADSP_HEAP>;
qcom,non-secure-domain;
#address-cells = <1>;
#size-cells = <0>;
---
base-commit: 4fa3f5fabb30bf00d7475d5a33459ea83d639bf9
change-id: 20260617-sm8250-audio-380d342c48cb
Best regards,
--
Vinayak Katoch <vinayak.katoch@xxxxxxxxxxxxxxxx>