linux-kernel - Re: [RESEND PATCH v2 00/13] Enable GPU for SM8150 and SM8250

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Date:   Mon, 6 Jul 2020 22:50:37 +0300
From:   Dmitry Baryshkov <dmitry.baryshkov@...aro.org>
To:     Jonathan Marek <jonathan@...ek.ca>, linux-arm-msm@...r.kernel.org
Cc:     Andy Gross <agross@...nel.org>,
        Bjorn Andersson <bjorn.andersson@...aro.org>,
        Deepak Katragadda <dkatraga@...eaurora.org>,
        "open list:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS" 
        <devicetree@...r.kernel.org>,
        "open list:COMMON CLK FRAMEWORK" <linux-clk@...r.kernel.org>,
        open list <linux-kernel@...r.kernel.org>,
        Michael Turquette <mturquette@...libre.com>,
        Rob Herring <robh+dt@...nel.org>,
        Stephen Boyd <sboyd@...nel.org>,
        Taniya Das <tdas@...eaurora.org>, Vinod Koul <vkoul@...nel.org>
Subject: Re: [RESEND PATCH v2 00/13] Enable GPU for SM8150 and SM8250

On 03/07/2020 18:03, Dmitry Baryshkov wrote:
> On 30/06/2020 00:17, Jonathan Marek wrote:
>> This series adds the missing clock drivers and dts nodes to enable
>> the GPU on both SM8150 and SM8250.
>>
>> Note an extra patch [1] is still required for GPU to work on SM8250.
>>
>> Changes in V2:
>> * Added "clk: qcom: gcc: fix sm8150 GPU and NPU clocks" to fix the 
>> newly added
>>    SM8150 GPU gcc clocks
>> * Added "Fixes:" tag to "clk: qcom: clk-alpha-pll: remove 
>> unused/incorrect PLL_CAL_VAL"
>> * Added yaml schemas to gpucc dt-bindings patches
>> * Added "clk: qcom: add common gdsc_gx_do_nothing_enable for gpucc 
>> drivers" and changed
>>    gpucc patches to use it.
>> * Removed CLK_IS_CRITICAL from gpu_cc_ahb_clk
>> * Added missing rpmh regulator level for sm8250 GPU clock levels
>> * Use sm8150/sm8250 iommu compatibles in dts
>> * Add gcc_gpu_gpll0_clk_src/gcc_gpu_gpll0_div_clk_src to gpucc clocks 
>> in dts
>>
>> [1] https://gist.github.com/flto/784f1aca761ebf2fe6c105719a4a04ca
> 
> With your patches applied:
> 
> [   56.751977] msm msm: [drm:adreno_request_fw] loaded qcom/a650_sqe.fw 
> from new location
> [   56.760166] msm msm: [drm:adreno_request_fw] loaded qcom/a650_gmu.bin 
> from new location
> [   56.768485] arm-smmu 3da0000.iommu: genpd_runtime_resume()
> [   56.774196] PM: gpu_cx_gdsc: Power-on latency exceeded, new value 
> 49531 ns
> [   56.781730] arm-smmu 3da0000.iommu: resume latency exceeded, 462604 ns
> [   56.799559] platform 3d6a000.gmu: [drm:a6xx_gmu_resume] *ERROR* GMU 
> firmware initialization timed out
> [   56.809260] arm-smmu 3da0000.iommu: genpd_runtime_suspend()
> [   56.813062] msm msm: [drm:adreno_load_gpu] *ERROR* Couldn't power up 
> the GPU: -110


Confirmed to be a firmware issue. With older firmware proposed patches 
work fine. A patch to support newer firmware releases will be submitted 
separately.


-- 
With best wishes
Dmitry