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charset="utf-8" Add a dynamic CMA pool for the AudioReach audio stack on qcs6490-rb3gen2. Use alloc-ranges to let the kernel pick a free address rather than a fixed reg, which avoided EFI-reserved memory at 0x9cc00000. Add 4 MiB alignment to satisfy CMA_MIN_ALIGNMENT_BYTES. Wire memory-region into q6apmdai so the q6apm-audio-mem-cma child driver can attach the pool. Based on the equivalent implementation for lemans (SA8295P). Signed-off-by: Karthik S --- arch/arm64/boot/dts/qcom/qcs6490-audioreach.dtsi | 1 + arch/arm64/boot/dts/qcom/qcs6490-rb3gen2.dts | 8 ++++++++ 2 files changed, 9 insertions(+) diff --git a/arch/arm64/boot/dts/qcom/qcs6490-audioreach.dtsi b/arch/arm64/= boot/dts/qcom/qcs6490-audioreach.dtsi index c1867711298b..06f65ae8afbc 100644 --- a/arch/arm64/boot/dts/qcom/qcs6490-audioreach.dtsi +++ b/arch/arm64/boot/dts/qcom/qcs6490-audioreach.dtsi @@ -97,6 +97,7 @@ q6apm: service@1 { q6apmdai: dais { compatible =3D "qcom,q6apm-dais"; iommus =3D <&apps_smmu 0x1801 0x0>; + memory-region =3D <&audio_cma_mem>; }; =20 q6apmbedai: bedais { diff --git a/arch/arm64/boot/dts/qcom/qcs6490-rb3gen2.dts b/arch/arm64/boot= /dts/qcom/qcs6490-rb3gen2.dts index a13315bf0fb0..d39246f34172 100644 --- a/arch/arm64/boot/dts/qcom/qcs6490-rb3gen2.dts +++ b/arch/arm64/boot/dts/qcom/qcs6490-rb3gen2.dts @@ -174,6 +174,14 @@ rmtfs_mem: memory@f8500000 { qcom,client-id =3D <1>; qcom,vmid =3D , ; }; + + audio_cma_mem: qcom,audio-ml { + compatible =3D "shared-dma-pool"; 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Without these SIDs the CMA device has no IOMMU domain (has_iommu=3D0) and IOCTL_MAP_HYP_ASSIGN falls through to the SCM path, which fails on RB3Gen2 because Gunyah owns the SMMU. SID assignments: 0x1860 / mask 0x9 =E2=80=94 ML Activation + Weights + Write streams 0x1862 / mask 0x1 =E2=80=94 ML Config + Bias streams 0x1864 / mask 0x0 =E2=80=94 ML Normalized Data stream Signed-off-by: Karthik S --- arch/arm64/boot/dts/qcom/kodiak-el2.dtso | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/arch/arm64/boot/dts/qcom/kodiak-el2.dtso b/arch/arm64/boot/dts= /qcom/kodiak-el2.dtso index 8daf7f02fd75..d050857cab31 100644 --- a/arch/arm64/boot/dts/qcom/kodiak-el2.dtso +++ b/arch/arm64/boot/dts/qcom/kodiak-el2.dtso @@ -13,7 +13,10 @@ &gpu_zap_shader { }; =20 &remoteproc_adsp { - iommus =3D <&apps_smmu 0x1800 0x0>; + iommus =3D <&apps_smmu 0x1800 0x0>, + <&apps_smmu 0x1860 0x9>, + <&apps_smmu 0x1862 0x1>, + <&apps_smmu 0x1864 0x0>; }; =20 &remoteproc_cdsp { --=20 2.34.1