linux-kernel - Re: [PATCH v3 2/2] arm64: dts: qcom: qcs8300: Add device node for gfx

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Message-ID: <18327fca-2c9e-4b33-8085-270cd2c29aa4@quicinc.com>
Date: Wed, 8 Jan 2025 17:43:11 +0530
From: Pratyush Brahma <quic_pbrahma@...cinc.com>
To: Bjorn Andersson <andersson@...nel.org>
CC: <konradybcio@...nel.org>, <robh@...nel.org>, <krzk+dt@...nel.org>,
        <conor+dt@...nel.org>, <linux-arm-msm@...r.kernel.org>,
        <devicetree@...r.kernel.org>, <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH v3 2/2] arm64: dts: qcom: qcs8300: Add device node for
 gfx_smmu


On 12/28/2024 9:05 AM, Bjorn Andersson wrote:
> On Fri, Dec 27, 2024 at 04:30:24PM +0530, Pratyush Brahma wrote:
>> Add the device node for gfx smmu that is required for gpu
>> specific address translations.
>>
>> This patch depends on the patch series [1] posted by Imran Shaik
>> adding the clock support for gpu.
>>
>> [1] https://lore.kernel.org/all/802d32f1-ff7e-4d61-83f1-f804ee1750ed@oss.qualcomm.com/
> It's over a month since Konrad rejected that patch so you're just
> wasting out time sending this to the list.
>
> Further, this dependency has no value in the git history, and as such it
> should not be mentioned in the commit message, but rather under the
> '---' line.
>
> Lastly, you sent this same patch both as part of a series and then
> alone, within 2 minutes. go/upstream has instructions on how to use b4
> instead of making these manual mistakes.
>
>
> PS. Just to be clear, either make sure this patch is sent together with
> the next version of [1], or wait for that to have become available in
> linux-next before resubmitting it.
I see the patch [1] has been merged now [2]. Will resend another version 
of this on top of
the merged commit using b4.

[2] 
https://lore.kernel.org/all/173631205044.113795.272368168541784140.b4-ty@kernel.org/

>
> Regards,
> Bjorn
>
>> Signed-off-by: Pratyush Brahma <quic_pbrahma@...cinc.com>
>> ---
>>   arch/arm64/boot/dts/qcom/qcs8300.dtsi | 37 +++++++++++++++++++++++++++
>>   1 file changed, 37 insertions(+)
>>
>> diff --git a/arch/arm64/boot/dts/qcom/qcs8300.dtsi b/arch/arm64/boot/dts/qcom/qcs8300.dtsi
>> index 80226992a65d..8eb688e2df0a 100644
>> --- a/arch/arm64/boot/dts/qcom/qcs8300.dtsi
>> +++ b/arch/arm64/boot/dts/qcom/qcs8300.dtsi
>> @@ -816,6 +816,43 @@
>>   			#power-domain-cells = <1>;
>>   		};
>>   
>> +		adreno_smmu: iommu@...0000 {
>> +			compatible = "qcom,qcs8300-smmu-500", "qcom,adreno-smmu",
>> +				   "qcom,smmu-500", "arm,mmu-500";
>> +			reg = <0x0 0x3da0000 0x0 0x20000>;
>> +			#iommu-cells = <2>;
>> +			#global-interrupts = <2>;
>> +			dma-coherent;
>> +
>> +			power-domains = <&gpucc GPU_CC_CX_GDSC>;
>> +			clocks = <&gcc GCC_GPU_MEMNOC_GFX_CLK>,
>> +				 <&gcc GCC_GPU_SNOC_DVM_GFX_CLK>,
>> +				 <&gpucc GPU_CC_AHB_CLK>,
>> +				 <&gpucc GPU_CC_HLOS1_VOTE_GPU_SMMU_CLK>,
>> +				 <&gpucc GPU_CC_CX_GMU_CLK>,
>> +				 <&gpucc GPU_CC_HUB_CX_INT_CLK>,
>> +				 <&gpucc GPU_CC_HUB_AON_CLK>;
>> +			clock-names = "gcc_gpu_memnoc_gfx_clk",
>> +				      "gcc_gpu_snoc_dvm_gfx_clk",
>> +				      "gpu_cc_ahb_clk",
>> +				      "gpu_cc_hlos1_vote_gpu_smmu_clk",
>> +				      "gpu_cc_cx_gmu_clk",
>> +				      "gpu_cc_hub_cx_int_clk",
>> +				      "gpu_cc_hub_aon_clk";
>> +			interrupts = <GIC_SPI 672 IRQ_TYPE_LEVEL_HIGH>,
>> +				     <GIC_SPI 673 IRQ_TYPE_LEVEL_HIGH>,
>> +				     <GIC_SPI 678 IRQ_TYPE_LEVEL_HIGH>,
>> +				     <GIC_SPI 679 IRQ_TYPE_LEVEL_HIGH>,
>> +				     <GIC_SPI 680 IRQ_TYPE_LEVEL_HIGH>,
>> +				     <GIC_SPI 681 IRQ_TYPE_LEVEL_HIGH>,
>> +				     <GIC_SPI 682 IRQ_TYPE_LEVEL_HIGH>,
>> +				     <GIC_SPI 683 IRQ_TYPE_LEVEL_HIGH>,
>> +				     <GIC_SPI 684 IRQ_TYPE_LEVEL_HIGH>,
>> +				     <GIC_SPI 685 IRQ_TYPE_LEVEL_HIGH>,
>> +				     <GIC_SPI 686 IRQ_TYPE_LEVEL_HIGH>,
>> +				     <GIC_SPI 687 IRQ_TYPE_LEVEL_HIGH>;
>> +		};
>> +
>>   		pmu@...1000 {
>>   			compatible = "qcom,qcs8300-llcc-bwmon", "qcom,sc7280-llcc-bwmon";
>>   			reg = <0x0 0x9091000 0x0 0x1000>;
>> -- 
>> 2.17.1
>>
-- 
Thanks and Regards
Pratyush Brahma