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Message-ID: <CAA8EJpqNXb+pJp0OQXi5Pn7d2u2zGeJmVkTvsgFXzvkHn6FjqA@mail.gmail.com>
Date: Tue, 24 Sep 2024 08:14:17 +0200
From: Dmitry Baryshkov <dmitry.baryshkov@...aro.org>
To: Akhil P Oommen <quic_akhilpo@...cinc.com>
Cc: Rob Clark <robdclark@...il.com>, Sean Paul <sean@...rly.run>,
Konrad Dybcio <konrad.dybcio@...aro.org>, Abhinav Kumar <quic_abhinavk@...cinc.com>,
Marijn Suijten <marijn.suijten@...ainline.org>, David Airlie <airlied@...il.com>,
Daniel Vetter <daniel@...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>, 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 3/3] arm64: dts: qcom: sa8775p: Add gpu and gmu nodes
On Mon, 23 Sept 2024 at 22:05, Akhil P Oommen <quic_akhilpo@...cinc.com> wrote:
>
> On Wed, Sep 18, 2024 at 12:27:03AM +0300, Dmitry Baryshkov wrote:
> > On Wed, Sep 18, 2024 at 02:08:43AM GMT, Akhil P Oommen wrote:
> > > From: Puranam V G Tejaswi <quic_pvgtejas@...cinc.com>
> > >
> > > Add gpu and gmu nodes for sa8775p based platforms.
> >
> > Which platforms? The commit adds nodes to the SoC and the single RIDE
> > platform.
> >
> > >
> > > Signed-off-by: Puranam V G Tejaswi <quic_pvgtejas@...cinc.com>
> > > Signed-off-by: Akhil P Oommen <quic_akhilpo@...cinc.com>
> > > ---
> > > arch/arm64/boot/dts/qcom/sa8775p-ride.dtsi | 8 ++++
> > > arch/arm64/boot/dts/qcom/sa8775p.dtsi | 75 ++++++++++++++++++++++++++++++
> > > 2 files changed, 83 insertions(+)
> > >
> > > diff --git a/arch/arm64/boot/dts/qcom/sa8775p-ride.dtsi b/arch/arm64/boot/dts/qcom/sa8775p-ride.dtsi
> > > index 2a6170623ea9..a01e6675c4bb 100644
> > > --- a/arch/arm64/boot/dts/qcom/sa8775p-ride.dtsi
> > > +++ b/arch/arm64/boot/dts/qcom/sa8775p-ride.dtsi
> > > @@ -407,6 +407,14 @@ queue3 {
> > > };
> > > };
> > >
> > > +&gpu {
> > > + status = "okay";
> > > +
> > > + zap-shader {
> >
> > It's easier to add gpu_zap_shader_link label in the DTSI file and then
> > reference it instead of using the subnode again.
> >
> > > + firmware-name = "qcom/sa8775p/a663_zap.mbn";
> > > + };
> > > +};
> >
> > Separate patch, please.
> >
> > > +
> > > &i2c11 {
> > > clock-frequency = <400000>;
> > > pinctrl-0 = <&qup_i2c11_default>;
> > > diff --git a/arch/arm64/boot/dts/qcom/sa8775p.dtsi b/arch/arm64/boot/dts/qcom/sa8775p.dtsi
> > > index 23f1b2e5e624..12c79135a303 100644
> > > --- a/arch/arm64/boot/dts/qcom/sa8775p.dtsi
> > > +++ b/arch/arm64/boot/dts/qcom/sa8775p.dtsi
> > > @@ -2824,6 +2824,81 @@ tcsr_mutex: hwlock@...0000 {
> > > #hwlock-cells = <1>;
> > > };
> > >
> > > + gpu: gpu@...0000 {
> > > + compatible = "qcom,adreno-663.0", "qcom,adreno";
> > > + reg = <0 0x03d00000 0 0x40000>,
> > > + <0 0x03d9e000 0 0x1000>,
> > > + <0 0x03d61000 0 0x800>;
> >
> > I think it's suggested to use 0x0 now
> >
> > > + 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 0 &mc_virt SLAVE_EBI1 0>;
> >
> > QCOM_ICC_TAG_ALWAYS instead of 0
> >
> > > + interconnect-names = "gfx-mem";
> > > + #cooling-cells = <2>;
> >
> > No speed bins?
>
> Thanks for the review. Agree on all comments.
>
> Speedbins were missed because we are sharing these changes early in the
> developement cycle, sort of like what we did for chromeos develeopment.
> Will try to pick it up in the next patchset.
Ack. If you mention this in the commit message, that would be great!
>
> -Akhil
>
> >
> > > +
> > > + status = "disabled";
> > > +
> > > + zap-shader {
> >
> > gpu_zap_shader: zap-shader
> >
> > > + memory-region = <&pil_gpu_mem>;
> > > + };
> > > +
> > > + gpu_opp_table: opp-table {
> > > + compatible = "operating-points-v2";
> > > +
> > > + opp-405000000 {
> >
> > Just a single freq?
> >
> > > + opp-hz = /bits/ 64 <405000000>;
> > > + opp-level = <RPMH_REGULATOR_LEVEL_SVS_L1>;
> > > + opp-peak-kBps = <8368000>;
> > > + };
> > > +
> >
> > Drop the empty line, please.
> >
> > > + };
> > > + };
> > > +
> > > + gmu: gmu@...a000 {
> > > + compatible = "qcom,adreno-gmu-663.0", "qcom,adreno-gmu";
> > > + reg = <0 0x03d6a000 0 0x34000>,
> > > + <0 0x3de0000 0 0x10000>,
> > > + <0 0x0b290000 0 0x10000>;
> >
> > Wrong indentation, please align to the angle bracket.
> > Also I think it's suggested to use 0x0 now
> >
> > > + reg-names = "gmu", "rscc", "gmu_pdc";
> > > + interrupts = <GIC_SPI 304 IRQ_TYPE_LEVEL_HIGH>,
> > > + <GIC_SPI 305 IRQ_TYPE_LEVEL_HIGH>;
> >
> > And here
> >
> > > + 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 0xc00>;
> > > + 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>;
> > > + };
> > > + };
> > > + };
> > > +
> > > gpucc: clock-controller@...0000 {
> > > compatible = "qcom,sa8775p-gpucc";
> > > reg = <0x0 0x03d90000 0x0 0xa000>;
> > >
> > > --
> > > 2.45.2
> > >
> >
> > --
> > With best wishes
> > Dmitry
--
With best wishes
Dmitry
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