linux-kernel - Re: [PATCH v7 5/7] arm64: dts: qcom: sdm845: Add DT nodes for the TBUs

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Message-ID: <d21b1b9b-6f1d-4ffe-b5e3-41d0a43fb17d@linaro.org>
Date: Wed, 10 Apr 2024 14:08:37 +0200
From: Konrad Dybcio <konrad.dybcio@...aro.org>
To: Georgi Djakov <quic_c_gdjako@...cinc.com>, will@...nel.org,
 robin.murphy@....com, joro@...tes.org, iommu@...ts.linux.dev
Cc: robh+dt@...nel.org, krzysztof.kozlowski+dt@...aro.org,
 conor+dt@...nel.org, devicetree@...r.kernel.org, andersson@...nel.org,
 robdclark@...il.com, linux-arm-kernel@...ts.infradead.org,
 linux-kernel@...r.kernel.org, linux-arm-msm@...r.kernel.org,
 quic_cgoldswo@...cinc.com, quic_sukadev@...cinc.com, quic_pdaly@...cinc.com,
 quic_sudaraja@...cinc.com, djakov@...nel.org
Subject: Re: [PATCH v7 5/7] arm64: dts: qcom: sdm845: Add DT nodes for the
 TBUs



On 3/29/24 22:06, Georgi Djakov wrote:
> Add the device-tree nodes for the TBUs (translation buffer units) that
> are present on the sdm845 platforms. The TBUs can be used debug the
> kernel and provide additional information when a context faults occur.
> 
> Describe the all registers, clocks, interconnects and power-domain
> resources that are needed for each of the TBUs.
> 
> Signed-off-by: Georgi Djakov <quic_c_gdjako@...cinc.com>
> ---

[...]

> +		mnoc_hf_0_tbu: tbu@...cd000 {
> +			compatible = "qcom,sdm845-tbu";
> +			reg = <0x0 0x150cd000 0x0 0x1000>;
> +			interconnects = <&mmss_noc MASTER_MDP0 QCOM_ICC_TAG_ACTIVE_ONLY
> +					 &mmss_noc SLAVE_MNOC_HF_MEM_NOC QCOM_ICC_TAG_ACTIVE_ONLY>;
> +			qcom,stream-id-range = <&apps_smmu 0x800 0x400>;
> +		};
> +
> +		mnoc_hf_1_tbu: tbu@...d1000 {
> +			compatible = "qcom,sdm845-tbu";
> +			reg = <0x0 0x150d1000 0x0 0x1000>;
> +			interconnects = <&mmss_noc MASTER_MDP0 QCOM_ICC_TAG_ACTIVE_ONLY
> +					 &mmss_noc SLAVE_MNOC_HF_MEM_NOC QCOM_ICC_TAG_ACTIVE_ONLY>;
> +			qcom,stream-id-range = <&apps_smmu 0xc00 0x400>;
> +		};
> +
> +		mnoc_sf_0_tbu: tbu@...d5000 {
> +			compatible = "qcom,sdm845-tbu";
> +			reg = <0x0 0x150d5000 0x0 0x1000>;
> +			interconnects = <&mmss_noc MASTER_CAMNOC_SF QCOM_ICC_TAG_ACTIVE_ONLY
> +					 &mmss_noc SLAVE_MNOC_SF_MEM_NOC QCOM_ICC_TAG_ACTIVE_ONLY>;
> +			qcom,stream-id-range = <&apps_smmu 0x1000 0x400>;
> +		};

These three are missing their GDSCs, the rest looks in line with msm-4.4

Konrad