arch/arm64/boot/dts/qcom/talos.dtsi | 12 ++++++++++++ 1 file changed, 12 insertions(+)
From: Ekansh Gupta <ekansh.gupta@oss.qualcomm.com>
Reserve memory region for audio PD dynamic loading and remote heap
requirements. Add the required VMID list for memory ownership
transfers.
Signed-off-by: Ekansh Gupta <ekansh.gupta@oss.qualcomm.com>
---
Changes in v3:
- Use shared-dma-pool representation for adsp_rpc_remote_heap_mem.
- Link to v2: https://lore.kernel.org/r/20260419-talosaudio-v2-1-3a3b5dd67dd4@oss.qualcomm.com
Changes in v2:
- Fixed VMID list alignment.
- Link to v1: https://lore.kernel.org/r/20260418-talosaudio-v1-1-585ab22faaf4@oss.qualcomm.com
---
arch/arm64/boot/dts/qcom/talos.dtsi | 12 ++++++++++++
1 file changed, 12 insertions(+)
diff --git a/arch/arm64/boot/dts/qcom/talos.dtsi b/arch/arm64/boot/dts/qcom/talos.dtsi
index ff5afbfce2a4..c230d46616ea 100644
--- a/arch/arm64/boot/dts/qcom/talos.dtsi
+++ b/arch/arm64/boot/dts/qcom/talos.dtsi
@@ -11,6 +11,7 @@
#include <dt-bindings/clock/qcom,qcs615-videocc.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/interconnect/qcom,icc.h>
#include <dt-bindings/interconnect/qcom,osm-l3.h>
#include <dt-bindings/interconnect/qcom,qcs615-rpmh.h>
@@ -657,6 +658,14 @@ pil_gpu_mem: pil-gpu@97715000 {
reg = <0x0 0x97715000 0x0 0x2000>;
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>;
+ };
};
soc: soc@0 {
@@ -5100,6 +5109,9 @@ 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>;
#address-cells = <1>;
#size-cells = <0>;
---
base-commit: c7275b05bc428c7373d97aa2da02d3a7fa6b9f66
change-id: 20260418-talosaudio-b8ecf8b9a1b3
Best regards,
--
Ekansh Gupta <ekansh.gupta@oss.qualcomm.com>On 4/24/26 12:10 PM, Ekansh Gupta via B4 Relay wrote: > From: Ekansh Gupta <ekansh.gupta@oss.qualcomm.com> > > Reserve memory region for audio PD dynamic loading and remote heap > requirements. Add the required VMID list for memory ownership > transfers. > > Signed-off-by: Ekansh Gupta <ekansh.gupta@oss.qualcomm.com> > --- Reviewed-by: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com> Konrad
On Fri, Apr 24, 2026 at 03:40:22PM +0530, Ekansh Gupta via B4 Relay wrote: > From: Ekansh Gupta <ekansh.gupta@oss.qualcomm.com> > > Reserve memory region for audio PD dynamic loading and remote heap > requirements. Add the required VMID list for memory ownership > transfers. And what happens if there is no such region allocated / assigned? Also, can we please get the remote heap set up for all the platforms where it makes sense? I see that it is only currently set for a very few devices (hamoa, kodiak, lemans, monaco and SM8750). Checking the downstream sources, I see the remoteheap being set starting from the era of MSM8996 / SDM660. > Signed-off-by: Ekansh Gupta <ekansh.gupta@oss.qualcomm.com> -- With best wishes Dmitry
On 25-04-2026 20:43, Dmitry Baryshkov wrote: > On Fri, Apr 24, 2026 at 03:40:22PM +0530, Ekansh Gupta via B4 Relay wrote: >> From: Ekansh Gupta <ekansh.gupta@oss.qualcomm.com> >> >> Reserve memory region for audio PD dynamic loading and remote heap >> requirements. Add the required VMID list for memory ownership >> transfers. > > And what happens if there is no such region allocated / assigned? If there is no region assigned and audio PD dynamic loading is requested for any offload use-case, it would result in audio PD dynamic loading failure which is the major purpose of audio fastrpc daemon. > > Also, can we please get the remote heap set up for all the platforms > where it makes sense? I see that it is only currently set for a very few > devices (hamoa, kodiak, lemans, monaco and SM8750). Checking the > downstream sources, I see the remoteheap being set starting from the > era of MSM8996 / SDM660. Noted. I'll bring this region for other platforms also. > >> Signed-off-by: Ekansh Gupta <ekansh.gupta@oss.qualcomm.com> >
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