linux-kernel - Re: [PATCH v3 1/2] arm64: dts: qcom: sa8775p: Add gpu and gmu nodes

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Message-ID: <bf997a81-45e9-43f6-ad65-5eff16101891@quicinc.com>
Date: Fri, 1 Nov 2024 20:16:02 +0530
From: Akhil P Oommen <quic_akhilpo@...cinc.com>
To: Konrad Dybcio <konrad.dybcio@....qualcomm.com>,
        Rob Clark
	<robdclark@...il.com>, Sean Paul <sean@...rly.run>,
        Konrad Dybcio
	<konradybcio@...nel.org>,
        Abhinav Kumar <quic_abhinavk@...cinc.com>,
        "Dmitry
 Baryshkov" <dmitry.baryshkov@...aro.org>,
        Marijn Suijten
	<marijn.suijten@...ainline.org>,
        David Airlie <airlied@...il.com>, "Simona
 Vetter" <simona@...ll.ch>,
        Maarten Lankhorst
	<maarten.lankhorst@...ux.intel.com>,
        Maxime Ripard <mripard@...nel.org>,
        Thomas Zimmermann <tzimmermann@...e.de>, Rob Herring <robh@...nel.org>,
        Krzysztof Kozlowski <krzk+dt@...nel.org>,
        Conor Dooley <conor+dt@...nel.org>,
        Bjorn Andersson <andersson@...nel.org>,
        Connor Abbott <cwabbott0@...il.com>
CC: <linux-arm-msm@...r.kernel.org>, <dri-devel@...ts.freedesktop.org>,
        <freedreno@...ts.freedesktop.org>, <linux-kernel@...r.kernel.org>,
        <devicetree@...r.kernel.org>,
        Puranam V G Tejaswi <quic_pvgtejas@...cinc.com>
Subject: Re: [PATCH v3 1/2] arm64: dts: qcom: sa8775p: Add gpu and gmu nodes

On 11/1/2024 2:00 AM, Konrad Dybcio wrote:
> On 30.10.2024 8:02 AM, Akhil P Oommen wrote:
>> From: Puranam V G Tejaswi <quic_pvgtejas@...cinc.com>
>>
>> Add gpu and gmu nodes for sa8775p chipset. As of now all
>> SKUs have the same GPU fmax, so there is no requirement of
>> speed bin support.
>>
>> Signed-off-by: Puranam V G Tejaswi <quic_pvgtejas@...cinc.com>
>> Signed-off-by: Akhil P Oommen <quic_akhilpo@...cinc.com>
>> Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@...aro.org>
>> ---
>>  arch/arm64/boot/dts/qcom/sa8775p.dtsi | 94 +++++++++++++++++++++++++++++++++++
>>  1 file changed, 94 insertions(+)
>>
>> diff --git a/arch/arm64/boot/dts/qcom/sa8775p.dtsi b/arch/arm64/boot/dts/qcom/sa8775p.dtsi
>> index e8dbc8d820a6..c6cb18193787 100644
>> --- a/arch/arm64/boot/dts/qcom/sa8775p.dtsi
>> +++ b/arch/arm64/boot/dts/qcom/sa8775p.dtsi
>> @@ -3072,6 +3072,100 @@ tcsr_mutex: hwlock@...0000 {
>>  			#hwlock-cells = <1>;
>>  		};
>>  
>> +		gpu: gpu@...0000 {
>> +			compatible = "qcom,adreno-663.0", "qcom,adreno";
> 
> Is the patchlevel zero for this SKU?

Yes. There is only a single revision implemented downstream.


> 
> 
>> +			reg = <0x0 0x03d00000 0x0 0x40000>,
>> +			      <0x0 0x03d9e000 0x0 0x1000>,
>> +			      <0x0 0x03d61000 0x0 0x800>;
>> +			reg-names = "kgsl_3d0_reg_memory",
>> +				    "cx_mem",
>> +				    "cx_dbgc";
>> +			interrupts = <GIC_SPI 300 IRQ_TYPE_LEVEL_HIGH>;
>> +			iommus = <&adreno_smmu 0 0xc00>,
>> +				 <&adreno_smmu 1 0xc00>;
>> +			operating-points-v2 = <&gpu_opp_table>;
>> +			qcom,gmu = <&gmu>;
>> +			interconnects = <&gem_noc MASTER_GFX3D QCOM_ICC_TAG_ALWAYS
>> +					 &mc_virt SLAVE_EBI1 QCOM_ICC_TAG_ALWAYS>;
>> +			interconnect-names = "gfx-mem";
>> +			#cooling-cells = <2>;
> 
> You might want to hook this up to a thermal-zone right away

I am checking with our Thermal team on this. Will get back shortly.

-Akhil.

> 
> Konrad