[PATCH 0/2] arm64: dts: qcom: sm8750: Introduce BWMONs

[PATCH 0/2] arm64: dts: qcom: sm8750: Introduce BWMONs

[Melody Olvera]

Document and describe the BWMONs in the SM8750 SoC.

Signed-off-by: Melody Olvera <quic_molvera@quicinc.com>
---
Shivnandan Kumar (2):
      dt-bindings: interconnect: qcom,msm8998-bwmon: Add SM8750 CPU BWMONs
      arm64: dts: qcom: sm8750: Add BWMONs

 .../bindings/interconnect/qcom,msm8998-bwmon.yaml  |  1 +
 arch/arm64/boot/dts/qcom/sm8750.dtsi               | 74 ++++++++++++++++++++++
 2 files changed, 75 insertions(+)
---
base-commit: 37136bf5c3a6f6b686d74f41837a6406bec6b7bc
change-id: 20250107-sm8750_bwmon_master-cd4b8e1080c9

Best regards,
-- 
Melody Olvera <quic_molvera@quicinc.com>

[PATCH 1/2] dt-bindings: interconnect: qcom,msm8998-bwmon: Add SM8750 CPU BWMONs

[Melody Olvera]

From: Shivnandan Kumar <quic_kshivnan@quicinc.com>

Document the SM8750 BWMONs, which has one instance per cluster of
BWMONv4.

Signed-off-by: Shivnandan Kumar <quic_kshivnan@quicinc.com>
Signed-off-by: Melody Olvera <quic_molvera@quicinc.com>
---
 Documentation/devicetree/bindings/interconnect/qcom,msm8998-bwmon.yaml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/Documentation/devicetree/bindings/interconnect/qcom,msm8998-bwmon.yaml b/Documentation/devicetree/bindings/interconnect/qcom,msm8998-bwmon.yaml
index ff24b5ee2c6613ba71f8c5f840e77226131edc3e..83bcf0575cd372926102e2764055c3576822c915 100644
--- a/Documentation/devicetree/bindings/interconnect/qcom,msm8998-bwmon.yaml
+++ b/Documentation/devicetree/bindings/interconnect/qcom,msm8998-bwmon.yaml
@@ -38,6 +38,7 @@ properties:
               - qcom,sm8250-cpu-bwmon
               - qcom,sm8550-cpu-bwmon
               - qcom,sm8650-cpu-bwmon
+              - qcom,sm8750-cpu-bwmon
               - qcom,x1e80100-cpu-bwmon
           - const: qcom,sdm845-bwmon    # BWMON v4, unified register space
       - items:

-- 
2.46.1

[PATCH 2/2] arm64: dts: qcom: sm8750: Add BWMONs

[Melody Olvera]

From: Shivnandan Kumar <quic_kshivnan@quicinc.com>

Add the CPU BWMONs for SM8750 SoCs.

Signed-off-by: Shivnandan Kumar <quic_kshivnan@quicinc.com>
Signed-off-by: Melody Olvera <quic_molvera@quicinc.com>
---
 arch/arm64/boot/dts/qcom/sm8750.dtsi | 74 ++++++++++++++++++++++++++++++++++++
 1 file changed, 74 insertions(+)

diff --git a/arch/arm64/boot/dts/qcom/sm8750.dtsi b/arch/arm64/boot/dts/qcom/sm8750.dtsi
index 3bbd7d18598ee0a3a0d5130c03a3166e1fc14d82..09fe3149da1926b74a98280fe209ae7f423db864 100644
--- a/arch/arm64/boot/dts/qcom/sm8750.dtsi
+++ b/arch/arm64/boot/dts/qcom/sm8750.dtsi
@@ -2802,6 +2802,80 @@ rpmhpd_opp_super_turbo_no_cpr: opp-480 {
 			};
 		};
 
+		/* cluster0 */
+		pmu@240b3400 {
+			compatible = "qcom,sm8750-cpu-bwmon", "qcom,sdm845-bwmon";
+			reg = <0x0 0x240b3400 0x0 0x600>;
+
+			interrupts = <GIC_SPI 581 IRQ_TYPE_LEVEL_HIGH>;
+
+			interconnects = <&gem_noc MASTER_APPSS_PROC QCOM_ICC_TAG_ACTIVE_ONLY
+					 &mc_virt SLAVE_EBI1 QCOM_ICC_TAG_ALWAYS>;
+
+			operating-points-v2 = <&cpu_bwmon_opp_table>;
+
+			cpu_bwmon_opp_table: opp-table {
+				compatible = "operating-points-v2";
+
+				opp-0 {
+					opp-peak-kBps = <800000>;
+				};
+
+				opp-1 {
+					opp-peak-kBps = <2188000>;
+				};
+
+				opp-2 {
+					opp-peak-kBps = <5414400>;
+				};
+
+				opp-3 {
+					opp-peak-kBps = <6220800>;
+				};
+
+				opp-4 {
+					opp-peak-kBps = <6835200>;
+				};
+
+				opp-5 {
+					opp-peak-kBps = <8371200>;
+				};
+
+				opp-6 {
+					opp-peak-kBps = <10944000>;
+				};
+
+				opp-7 {
+					opp-peak-kBps = <12748800>;
+				};
+
+				opp-8 {
+					opp-peak-kBps = <14745600>;
+				};
+
+				opp-9 {
+					opp-peak-kBps = <16896000>;
+				};
+
+				opp-10 {
+					opp-peak-kBps = <19046400>;
+				};
+			};
+		};
+
+		/* cluster1 */
+		pmu@240b7400 {
+			compatible = "qcom,sm8750-cpu-bwmon", "qcom,sdm845-bwmon";
+			reg = <0x0 0x240b7400 0x0 0x600>;
+
+			interrupts = <GIC_SPI 581 IRQ_TYPE_LEVEL_HIGH>;
+
+			interconnects = <&gem_noc MASTER_APPSS_PROC QCOM_ICC_TAG_ACTIVE_ONLY
+					 &mc_virt SLAVE_EBI1 QCOM_ICC_TAG_ALWAYS>;
+
+			operating-points-v2 = <&cpu_bwmon_opp_table>;
+		};
+
 		timer@16800000 {
 			compatible = "arm,armv7-timer-mem";
 			reg = <0x0 0x16800000 0x0 0x1000>;

-- 
2.46.1

Re: [PATCH 1/2] dt-bindings: interconnect: qcom,msm8998-bwmon: Add SM8750 CPU BWMONs

[Krzysztof Kozlowski]

On 13/01/2025 22:08, Melody Olvera wrote:
> From: Shivnandan Kumar <quic_kshivnan@quicinc.com>
> 
> Document the SM8750 BWMONs, which has one instance per cluster of
> BWMONv4.
> 
> Signed-off-by: Shivnandan Kumar <quic_kshivnan@quicinc.com>
> Signed-off-by: Melody Olvera <quic_molvera@quicinc.com>


Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>

Best regards,
Krzysztof

Re: [PATCH 2/2] arm64: dts: qcom: sm8750: Add BWMONs

[Stephan Gerhold]

On Mon, Jan 13, 2025 at 01:08:18PM -0800, Melody Olvera wrote:
> From: Shivnandan Kumar <quic_kshivnan@quicinc.com>
> 
> Add the CPU BWMONs for SM8750 SoCs.
> 
> Signed-off-by: Shivnandan Kumar <quic_kshivnan@quicinc.com>
> Signed-off-by: Melody Olvera <quic_molvera@quicinc.com>
> ---
>  arch/arm64/boot/dts/qcom/sm8750.dtsi | 74 ++++++++++++++++++++++++++++++++++++
>  1 file changed, 74 insertions(+)
> 
> diff --git a/arch/arm64/boot/dts/qcom/sm8750.dtsi b/arch/arm64/boot/dts/qcom/sm8750.dtsi
> index 3bbd7d18598ee0a3a0d5130c03a3166e1fc14d82..09fe3149da1926b74a98280fe209ae7f423db864 100644
> --- a/arch/arm64/boot/dts/qcom/sm8750.dtsi
> +++ b/arch/arm64/boot/dts/qcom/sm8750.dtsi
> @@ -2802,6 +2802,80 @@ rpmhpd_opp_super_turbo_no_cpr: opp-480 {
>  			};
>  		};
>  
> +		/* cluster0 */
> +		pmu@240b3400 {
> +			compatible = "qcom,sm8750-cpu-bwmon", "qcom,sdm845-bwmon";
> +			reg = <0x0 0x240b3400 0x0 0x600>;
> +
> +			interrupts = <GIC_SPI 581 IRQ_TYPE_LEVEL_HIGH>;
> +
> +			interconnects = <&gem_noc MASTER_APPSS_PROC QCOM_ICC_TAG_ACTIVE_ONLY
> +					 &mc_virt SLAVE_EBI1 QCOM_ICC_TAG_ALWAYS>;

The start of the interconnect path is QCOM_ICC_TAG_ACTIVE_ONLY, but the
destination is QCOM_ICC_TAG_ALWAYS? This is strange. Interconnect used
by the CPU should be QCOM_ICC_TAG_ACTIVE_ONLY.

Stephan

Re: [PATCH 2/2] arm64: dts: qcom: sm8750: Add BWMONs

[Konrad Dybcio]

On 16.01.2025 6:05 PM, Stephan Gerhold wrote:
> On Mon, Jan 13, 2025 at 01:08:18PM -0800, Melody Olvera wrote:
>> From: Shivnandan Kumar <quic_kshivnan@quicinc.com>
>>
>> Add the CPU BWMONs for SM8750 SoCs.
>>
>> Signed-off-by: Shivnandan Kumar <quic_kshivnan@quicinc.com>
>> Signed-off-by: Melody Olvera <quic_molvera@quicinc.com>
>> ---
>>  arch/arm64/boot/dts/qcom/sm8750.dtsi | 74 ++++++++++++++++++++++++++++++++++++
>>  1 file changed, 74 insertions(+)
>>
>> diff --git a/arch/arm64/boot/dts/qcom/sm8750.dtsi b/arch/arm64/boot/dts/qcom/sm8750.dtsi
>> index 3bbd7d18598ee0a3a0d5130c03a3166e1fc14d82..09fe3149da1926b74a98280fe209ae7f423db864 100644
>> --- a/arch/arm64/boot/dts/qcom/sm8750.dtsi
>> +++ b/arch/arm64/boot/dts/qcom/sm8750.dtsi
>> @@ -2802,6 +2802,80 @@ rpmhpd_opp_super_turbo_no_cpr: opp-480 {
>>  			};
>>  		};
>>  
>> +		/* cluster0 */
>> +		pmu@240b3400 {
>> +			compatible = "qcom,sm8750-cpu-bwmon", "qcom,sdm845-bwmon";
>> +			reg = <0x0 0x240b3400 0x0 0x600>;
>> +
>> +			interrupts = <GIC_SPI 581 IRQ_TYPE_LEVEL_HIGH>;
>> +
>> +			interconnects = <&gem_noc MASTER_APPSS_PROC QCOM_ICC_TAG_ACTIVE_ONLY
>> +					 &mc_virt SLAVE_EBI1 QCOM_ICC_TAG_ALWAYS>;
> 
> The start of the interconnect path is QCOM_ICC_TAG_ACTIVE_ONLY, but the
> destination is QCOM_ICC_TAG_ALWAYS? This is strange. Interconnect used
> by the CPU should be QCOM_ICC_TAG_ACTIVE_ONLY.

I'm not sure if this is a question, but I second, both should be ACTIVE_ONLY

Konrad

Re: [PATCH 2/2] arm64: dts: qcom: sm8750: Add BWMONs

[Melody Olvera]

On 2/7/2025 5:48 PM, Konrad Dybcio wrote:
> On 16.01.2025 6:05 PM, Stephan Gerhold wrote:
>> On Mon, Jan 13, 2025 at 01:08:18PM -0800, Melody Olvera wrote:
>>> From: Shivnandan Kumar <quic_kshivnan@quicinc.com>
>>>
>>> Add the CPU BWMONs for SM8750 SoCs.
>>>
>>> Signed-off-by: Shivnandan Kumar <quic_kshivnan@quicinc.com>
>>> Signed-off-by: Melody Olvera <quic_molvera@quicinc.com>
>>> ---
>>>   arch/arm64/boot/dts/qcom/sm8750.dtsi | 74 ++++++++++++++++++++++++++++++++++++
>>>   1 file changed, 74 insertions(+)
>>>
>>> diff --git a/arch/arm64/boot/dts/qcom/sm8750.dtsi b/arch/arm64/boot/dts/qcom/sm8750.dtsi
>>> index 3bbd7d18598ee0a3a0d5130c03a3166e1fc14d82..09fe3149da1926b74a98280fe209ae7f423db864 100644
>>> --- a/arch/arm64/boot/dts/qcom/sm8750.dtsi
>>> +++ b/arch/arm64/boot/dts/qcom/sm8750.dtsi
>>> @@ -2802,6 +2802,80 @@ rpmhpd_opp_super_turbo_no_cpr: opp-480 {
>>>   			};
>>>   		};
>>>   
>>> +		/* cluster0 */
>>> +		pmu@240b3400 {
>>> +			compatible = "qcom,sm8750-cpu-bwmon", "qcom,sdm845-bwmon";
>>> +			reg = <0x0 0x240b3400 0x0 0x600>;
>>> +
>>> +			interrupts = <GIC_SPI 581 IRQ_TYPE_LEVEL_HIGH>;
>>> +
>>> +			interconnects = <&gem_noc MASTER_APPSS_PROC QCOM_ICC_TAG_ACTIVE_ONLY
>>> +					 &mc_virt SLAVE_EBI1 QCOM_ICC_TAG_ALWAYS>;
>> The start of the interconnect path is QCOM_ICC_TAG_ACTIVE_ONLY, but the
>> destination is QCOM_ICC_TAG_ALWAYS? This is strange. Interconnect used
>> by the CPU should be QCOM_ICC_TAG_ACTIVE_ONLY.
> I'm not sure if this is a question, but I second, both should be ACTIVE_ONLY

Apologies for not getting back to this for a while, but I spoke w some 
folks and y'all are right. Will correct.

Thanks,
Melody