Re: [PATCH v2 6/6] arm64: dts: qcom: msm8996: Remove FastRPC compute CB9 entry

[Konrad Dybcio]

On 10/23/26 11:03 AM, Abhinav Parihar wrote:
> Remove the compute-cb@9 nodes from msm8996 device tree to
> prevent clients from selecting a secure context bank for normal FastRPC
> workloads.
> 
> Secure use case support is not currently implemented upstream.
> 
> Fixes: 1b80b83f893d ("arm64: dts: qcom: msm8996: add fastrpc nodes")
> Cc: stable@xxxxxxxxxxxxxxx
> Signed-off-by: Abhinav Parihar <abhinav.parihar@xxxxxxxxxxxxxxxx>
> ---
>  arch/arm64/boot/dts/qcom/msm8996.dtsi | 6 ------
>  1 file changed, 6 deletions(-)
> 
> diff --git a/arch/arm64/boot/dts/qcom/msm8996.dtsi b/arch/arm64/boot/dts/qcom/msm8996.dtsi
> index 818e5660df91..51ef306c1ce0 100644
> --- a/arch/arm64/boot/dts/qcom/msm8996.dtsi
> +++ b/arch/arm64/boot/dts/qcom/msm8996.dtsi
> @@ -3701,12 +3701,6 @@ cb@8 {
>  						iommus = <&lpass_q6_smmu 8>;
>  					};
>  
> -					cb@9 {
> -						compatible = "qcom,fastrpc-compute-cb";
> -						reg = <9>;
> -						iommus = <&lpass_q6_smmu 9>;
> -					};

The docs I managed to find suggest the protected SIDs are
2 and 3 on msm8996

Konrad