[PATCH v2] arm64: dts: qcom: agatti: Add memory-region for audio PD

[PATCH v2] arm64: dts: qcom: agatti: Add memory-region for audio PD

[Vinayak Katoch]

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@oss.qualcomm.com>
---
Changes in v2:
- Fixed VMID list alignment.
- Link to v1: https://lore.kernel.org/r/20260806-agatti-audio-v1-1-cd6766cc9ccb@oss.qualcomm.com
---
 arch/arm64/boot/dts/qcom/agatti.dtsi | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/arch/arm64/boot/dts/qcom/agatti.dtsi b/arch/arm64/boot/dts/qcom/agatti.dtsi
index 590bd2432d85..2064eed01327 100644
--- a/arch/arm64/boot/dts/qcom/agatti.dtsi
+++ b/arch/arm64/boot/dts/qcom/agatti.dtsi
@@ -381,6 +381,14 @@ rmtfs_mem: memory@89b01000 {
 			qcom,client-id = <1>;
 			qcom,vmid = <QCOM_SCM_VMID_MSS_MSA QCOM_SCM_VMID_NAV>;
 		};
+
+		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>;
+		};
 	};
 
 	smp2p-adsp {
@@ -2348,6 +2356,9 @@ 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;
 

---
base-commit: 1701fda2f58e345c050f4309971bdc07cd6146ba
change-id: 20260806-agatti-audio-357bcd74ae9c

Best regards,
-- 
Vinayak Katoch <vinayak.katoch@oss.qualcomm.com>

Re: [PATCH v2] arm64: dts: qcom: agatti: Add memory-region for audio PD

[Dmitry Baryshkov]

On Fri, Aug 07, 2026 at 11:20:56AM +0530, Vinayak Katoch wrote:
> 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@oss.qualcomm.com>
> ---
> Changes in v2:
> - Fixed VMID list alignment.
> - Link to v1: https://lore.kernel.org/r/20260806-agatti-audio-v1-1-cd6766cc9ccb@oss.qualcomm.com
> ---
>  arch/arm64/boot/dts/qcom/agatti.dtsi | 11 +++++++++++
>  1 file changed, 11 insertions(+)
> 

Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>


-- 
With best wishes
Dmitry

Re: [PATCH v2] arm64: dts: qcom: agatti: Add memory-region for audio PD

[Ekansh Gupta]

On 07-08-2026 11:20, Vinayak Katoch wrote:
> 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@oss.qualcomm.com>
> ---
> Changes in v2:
> - Fixed VMID list alignment.
> - Link to v1: https://lore.kernel.org/r/20260806-agatti-audio-v1-1-cd6766cc9ccb@oss.qualcomm.com
> ---
>  arch/arm64/boot/dts/qcom/agatti.dtsi | 11 +++++++++++
>  1 file changed, 11 insertions(+)

Reviewed-by: Ekansh Gupta <ekansh.gupta@oss.qualcomm.com>

> 
> diff --git a/arch/arm64/boot/dts/qcom/agatti.dtsi b/arch/arm64/boot/dts/qcom/agatti.dtsi
> index 590bd2432d85..2064eed01327 100644
> --- a/arch/arm64/boot/dts/qcom/agatti.dtsi
> +++ b/arch/arm64/boot/dts/qcom/agatti.dtsi
> @@ -381,6 +381,14 @@ rmtfs_mem: memory@89b01000 {
>  			qcom,client-id = <1>;
>  			qcom,vmid = <QCOM_SCM_VMID_MSS_MSA QCOM_SCM_VMID_NAV>;
>  		};
> +
> +		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>;
> +		};
>  	};
>  
>  	smp2p-adsp {
> @@ -2348,6 +2356,9 @@ 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;
>  
> 
> ---
> base-commit: 1701fda2f58e345c050f4309971bdc07cd6146ba
> change-id: 20260806-agatti-audio-357bcd74ae9c
> 
> Best regards,

Re: [PATCH v2] arm64: dts: qcom: agatti: Add memory-region for audio PD

[Chris Obbard]

Hi Vinayak,

On Fri, Aug 7, 2026 at 6:51 AM Vinayak Katoch
<vinayak.katoch@oss.qualcomm.com> wrote:
>
> 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@oss.qualcomm.com>
> ---
> Changes in v2:
> - Fixed VMID list alignment.
> - Link to v1: https://lore.kernel.org/r/20260806-agatti-audio-v1-1-cd6766cc9ccb@oss.qualcomm.com
> ---
>  arch/arm64/boot/dts/qcom/agatti.dtsi | 11 +++++++++++
>  1 file changed, 11 insertions(+)

Thanks for the patch!

This fixes a boot loop on Qualcomm QRB2210 RB1 and Arduino UNO Q, I
wonder if we could add a suitable Fixes tag ?

Tested-by: Christopher Obbard <chris.obbard@oss.qualcomm.com>

> diff --git a/arch/arm64/boot/dts/qcom/agatti.dtsi b/arch/arm64/boot/dts/qcom/agatti.dtsi
> index 590bd2432d85..2064eed01327 100644
> --- a/arch/arm64/boot/dts/qcom/agatti.dtsi
> +++ b/arch/arm64/boot/dts/qcom/agatti.dtsi
> @@ -381,6 +381,14 @@ rmtfs_mem: memory@89b01000 {
>                         qcom,client-id = <1>;
>                         qcom,vmid = <QCOM_SCM_VMID_MSS_MSA QCOM_SCM_VMID_NAV>;
>                 };
> +
> +               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>;
> +               };
>         };
>
>         smp2p-adsp {
> @@ -2348,6 +2356,9 @@ 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;
>
>
> ---
> base-commit: 1701fda2f58e345c050f4309971bdc07cd6146ba
> change-id: 20260806-agatti-audio-357bcd74ae9c
>
> Best regards,
> --
> Vinayak Katoch <vinayak.katoch@oss.qualcomm.com>
>
>

Re: [PATCH v2] arm64: dts: qcom: agatti: Add memory-region for audio PD

[Vinayak Katoch]

On 8/15/2026 2:56 AM, Chris Obbard wrote:
> Hi Vinayak,
> 
> On Fri, Aug 7, 2026 at 6:51 AM Vinayak Katoch
> <vinayak.katoch@oss.qualcomm.com> wrote:
>>
>> 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@oss.qualcomm.com>
>> ---
>> Changes in v2:
>> - Fixed VMID list alignment.
>> - Link to v1: https://lore.kernel.org/r/20260806-agatti-audio-v1-1-cd6766cc9ccb@oss.qualcomm.com
>> ---
>>  arch/arm64/boot/dts/qcom/agatti.dtsi | 11 +++++++++++
>>  1 file changed, 11 insertions(+)
> 
> Thanks for the patch!
> 
> This fixes a boot loop on Qualcomm QRB2210 RB1 and Arduino UNO Q, I
> wonder if we could add a suitable Fixes tag ?
> 
> Tested-by: Christopher Obbard <chris.obbard@oss.qualcomm.com>
>

Thanks for testing!

This patch is a feature addition rather than a bug fix, so a Fixes tag
would not be appropriate here.

The boot loop on QRB2210 RB1 and Arduino UNO Q was caused by the
userspace audiopd service file, not a kernel regression. That issue has
already been addressed in the userspace FastRPC repository:
https://github.com/qualcomm/fastrpc/commit/cd0c0dbbfef8ae950f9ebb4483a9b0192d8fb6a6


>> diff --git a/arch/arm64/boot/dts/qcom/agatti.dtsi b/arch/arm64/boot/dts/qcom/agatti.dtsi
>> index 590bd2432d85..2064eed01327 100644
>> --- a/arch/arm64/boot/dts/qcom/agatti.dtsi
>> +++ b/arch/arm64/boot/dts/qcom/agatti.dtsi
>> @@ -381,6 +381,14 @@ rmtfs_mem: memory@89b01000 {
>>                         qcom,client-id = <1>;
>>                         qcom,vmid = <QCOM_SCM_VMID_MSS_MSA QCOM_SCM_VMID_NAV>;
>>                 };
>> +
>> +               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>;
>> +               };
>>         };
>>
>>         smp2p-adsp {
>> @@ -2348,6 +2356,9 @@ 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;
>>
>>
>> ---
>> base-commit: 1701fda2f58e345c050f4309971bdc07cd6146ba
>> change-id: 20260806-agatti-audio-357bcd74ae9c
>>
>> Best regards,
>> --
>> Vinayak Katoch <vinayak.katoch@oss.qualcomm.com>
>>
>>

Re: [PATCH v2] arm64: dts: qcom: agatti: Add memory-region for audio PD

[Konrad Dybcio]

On 8/7/26 7:50 AM, Vinayak Katoch wrote:
> 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@oss.qualcomm.com>
> ---
> Changes in v2:
> - Fixed VMID list alignment.
> - Link to v1: https://lore.kernel.org/r/20260806-agatti-audio-v1-1-cd6766cc9ccb@oss.qualcomm.com
> ---
>  arch/arm64/boot/dts/qcom/agatti.dtsi | 11 +++++++++++
>  1 file changed, 11 insertions(+)
> 
> diff --git a/arch/arm64/boot/dts/qcom/agatti.dtsi b/arch/arm64/boot/dts/qcom/agatti.dtsi
> index 590bd2432d85..2064eed01327 100644
> --- a/arch/arm64/boot/dts/qcom/agatti.dtsi
> +++ b/arch/arm64/boot/dts/qcom/agatti.dtsi
> @@ -381,6 +381,14 @@ rmtfs_mem: memory@89b01000 {
>  			qcom,client-id = <1>;
>  			qcom,vmid = <QCOM_SCM_VMID_MSS_MSA QCOM_SCM_VMID_NAV>;
>  		};
> +
> +		adsp_rpc_remote_heap_mem: adsp-rpc-remote-heap {
> +			compatible = "shared-dma-pool";
> +			alloc-ranges = <0x0 0x80000000 0x0 0x80000000>;

RAM starts at 0x4000_000 on this platform.. I'm starting to think
that asking to provide a base was a mistake. Let's just make it
<0x0 0x0 0x1 0x0> to allow the whole 32-bit space

Konrad