Re: [PATCH v2] arm64: dts: qcom: sc7280: Add gpu support

[Akhil P Oommen <akhilpo@xxxxxxxxxxxxxx>]

On 7/27/2021 5:46 AM, Stephen Boyd wrote:
> Quoting Akhil P Oommen (2021-07-24 10:29:00)
> > Add the necessary dt nodes for gpu support in sc7280.
> >
> > Signed-off-by: Akhil P Oommen <akhilpo@xxxxxxxxxxxxxx>
> > ---
> > This patch has dependency on the GPUCC bindings patch here:
> > https://patchwork.kernel.org/project/linux-arm-msm/patch/1619519590-3019-4-git-send-email-tdas@xxxxxxxxxxxxxx/
>
> To avoid the dependency the plain numbers can be used.

But, won't that reduce readability and make things prone to error? If 
the other patch doesn't get picked up soon, we should try this option. 
We like to get this patch merged in v5.15.

> > Changes in v2:
> > - formatting update and removed a duplicate header (Stephan)
> >
> >   arch/arm64/boot/dts/qcom/sc7280.dtsi | 116 +++++++++++++++++++++++++++++++++++
> >   1 file changed, 116 insertions(+)
> >
> > diff --git a/arch/arm64/boot/dts/qcom/sc7280.dtsi b/arch/arm64/boot/dts/qcom/sc7280.dtsi
> > index 029723a..524a5e0 100644
> > --- a/arch/arm64/boot/dts/qcom/sc7280.dtsi
> > +++ b/arch/arm64/boot/dts/qcom/sc7280.dtsi
> > @@ -585,6 +586,121 @@
> >                          #clock-cells = <1>;
> >                  };
> >
> > +               gpu@3d00000 {
> > +                       compatible = "qcom,adreno-635.0", "qcom,adreno";
> > +                       #stream-id-cells = <16>;
> > +                       reg = <0 0x03d00000 0 0x40000>,
> > +                             <0 0x03d9e000 0 0x1000>,
> > +                             <0 0x03d61000 0 0x800>;
> > +                       reg-names = "kgsl_3d0_reg_memory",
> > +                                   "cx_mem",
> > +                                   "cx_dbgc";
> > +                       interrupts = <GIC_SPI 300 IRQ_TYPE_LEVEL_HIGH>;
> > +                       iommus = <&adreno_smmu 0 0x401>;
> > +                       operating-points-v2 = <&gpu_opp_table>;
> > +                       qcom,gmu = <&gmu>;
> > +                       interconnects = <&gem_noc MASTER_GFX3D 0 &mc_virt SLAVE_EBI1 0>;
> > +                       interconnect-names = "gfx-mem";
> > +
> > +                       gpu_opp_table: opp-table {
> > +                               compatible = "operating-points-v2";
> > +
> > +                               opp-550000000 {
> > +                                       opp-hz = /bits/ 64 <550000000>;
> > +                                       opp-level = <RPMH_REGULATOR_LEVEL_SVS_L1>;
> > +                                       opp-peak-kBps = <6832000>;
> > +                               };
> > +
> > +                               opp-450000000 {
> > +                                       opp-hz = /bits/ 64 <450000000>;
> > +                                       opp-level = <RPMH_REGULATOR_LEVEL_SVS>;
> > +                                       opp-peak-kBps = <4068000>;
> > +                               };
> > +
> > +                               opp-315000000 {
> > +                                       opp-hz = /bits/ 64 <315000000>;
> > +                                       opp-level = <RPMH_REGULATOR_LEVEL_LOW_SVS>;
> > +                                       opp-peak-kBps = <1804000>;
> > +                               };
> > +                       };
> > +               };
> > +
> > +               gmu: gmu@3d69000 {
> > +                       compatible="qcom,adreno-gmu-635.0", "qcom,adreno-gmu";
> > +                       reg = <0 0x03d6a000 0 0x34000>,
> > +                               <0 0x3de0000 0 0x10000>,
> > +                               <0 0x0b290000 0 0x10000>;
> > +                       reg-names = "gmu", "rscc", "gmu_pdc";
> > +                       interrupts = <GIC_SPI 304 IRQ_TYPE_LEVEL_HIGH>,
> > +                                       <GIC_SPI 305 IRQ_TYPE_LEVEL_HIGH>;
> > +                       interrupt-names = "hfi", "gmu";
> > +                       clocks = <&gpucc GPU_CC_CX_GMU_CLK>,
> > +                                       <&gpucc GPU_CC_CXO_CLK>,
> > +                                       <&gcc GCC_DDRSS_GPU_AXI_CLK>,
> > +                                       <&gcc GCC_GPU_MEMNOC_GFX_CLK>,
> > +                                       <&gpucc GPU_CC_AHB_CLK>,
> > +                                       <&gpucc GPU_CC_HUB_CX_INT_CLK>,
> > +                                       <&gpucc GPU_CC_HLOS1_VOTE_GPU_SMMU_CLK>;
> > +                       clock-names = "gmu",
> > +                                     "cxo",
> > +                                     "axi",
> > +                                     "memnoc",
> > +                                     "ahb",
> > +                                     "hub",
> > +                                     "smmu_vote";
> > +                       power-domains = <&gpucc GPU_CC_CX_GDSC>,
> > +                                       <&gpucc GPU_CC_GX_GDSC>;
> > +                       power-domain-names = "cx",
> > +                                            "gx";
> > +                       iommus = <&adreno_smmu 5 0x400>;
> > +                       operating-points-v2 = <&gmu_opp_table>;
> > +
> > +                       gmu_opp_table: opp-table {
> > +                               compatible = "operating-points-v2";
> > +
> > +                               opp-200000000 {
> > +                                       opp-hz = /bits/ 64 <200000000>;
> > +                                       opp-level = <RPMH_REGULATOR_LEVEL_MIN_SVS>;
> > +                               };
> > +                       };
> > +               };
> > +
> > +               adreno_smmu: iommu@3da0000 {
> > +                       compatible = "qcom,sc7280-smmu-500", "qcom,adreno-smmu", "arm,mmu-500";
> > +                       reg = <0 0x03da0000 0 0x20000>;
> > +                       #iommu-cells = <2>;
> > +                       #global-interrupts = <2>;
> > +                       interrupts = <GIC_SPI 673 IRQ_TYPE_LEVEL_HIGH>,
> > +                                       <GIC_SPI 675 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>;
> > +
> > +                       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";
> > +
> > +                       power-domains = <&gpucc GPU_CC_CX_GDSC>;
> > +               };
> > +
> >                  lpass_ag_noc: interconnect@3c40000 {
>
> This node is 3c40000 and the one above is 3da0000. 3c comes before 3d.
> Please order nodes properly.

Yeah, I messed up the order at a couple of places. Will fix.

-Akhil.
> >                          reg = <0 0x03c40000 0 0xf080>;
> >                          compatible = "qcom,sc7280-lpass-ag-noc";