linux-kernel - Re: [PATCH v8 10/11] arm64: dts: qcom: sm8350: Add Crypto Engine support

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Date:   Sun, 18 Jun 2023 12:19:48 +0530
From:   Bhupesh Sharma <bhupesh.sharma@...aro.org>
To:     Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
Cc:     Konrad Dybcio <konrad.dybcio@...aro.org>,
        linux-arm-msm@...r.kernel.org, devicetree@...r.kernel.org,
        agross@...nel.org, linux-kernel@...r.kernel.org,
        linux-crypto@...r.kernel.org, andersson@...nel.org,
        bhupesh.linux@...il.com, robh+dt@...nel.org,
        vladimir.zapolskiy@...aro.org, rfoss@...nel.org,
        neil.armstrong@...aro.org, djakov@...nel.org, stephan@...hold.net,
        Anders Roxell <anders.roxell@...aro.org>,
        Linux Kernel Functional Testing <lkft@...aro.org>
Subject: Re: [PATCH v8 10/11] arm64: dts: qcom: sm8350: Add Crypto Engine support

On Sat, 17 Jun 2023 at 12:58, Krzysztof Kozlowski
<krzysztof.kozlowski@...aro.org> wrote:
>
> On 17/06/2023 01:33, Konrad Dybcio wrote:
> > On 16.06.2023 19:36, Krzysztof Kozlowski wrote:
> >> On 26/05/2023 21:22, Bhupesh Sharma wrote:
> >>> Add crypto engine (CE) and CE BAM related nodes and definitions to
> >>> 'sm8350.dtsi'.
> >>>
> >>> Tested-by: Anders Roxell <anders.roxell@...aro.org>
> >>> Tested-by: Linux Kernel Functional Testing <lkft@...aro.org>
> >>> Co-developed-by and Signed-off-by: Robert Foss <rfoss@...nel.org>
> >>> [Bhupesh: Switch to '#interconnect-cells = <2>', available since commit 4f287e31ff5f]
> >>> Signed-off-by: Bhupesh Sharma <bhupesh.sharma@...aro.org>
> >>> ---
> >>
> >> #regzbot introduced: f1040a7fe8f069d2259ab3dab9190210005ceb33
> >> #regzbot title: HDK8350 silently crashes early on boot
> >>
> >> Hi, this landed in the next but unfortunately it causes silent crash
> >> (and reboot) of HDK8350. Reverting this commit helps.
> > Downstream also references the following SIDs:
> >
> > iommus = <&apps_smmu 0x592 0>,
> >        <&apps_smmu 0x598 0>,
> >        <&apps_smmu 0x599 0>,
> >        <&apps_smmu 0x59F 0>;
>
> I already tried iommus from downstream from:
> 1. qcrypto node (0x584, 0x594)
> 2. qcedev (0x586, 0x596)
> 3. qcom_cedev_ns_cb (0x592, 0x598, 0x599, 0x59F), although with 0x0011
> last argument.
>
> Same results, but indeed iommu would be nice reason here.
>
> I also double checked the version of block (BAM DMA is v1.7.4) and other
> properties. When I disabled crypto but left BAM DMA, the result was the
> same, thus it is maybe the BAM who causes abort.

I remember testing it on the sm8350-mtp and found no issues. Infact
Robert (the original author of the patch) had also done some testing
in the past.

I am sure - mtp v/s hdk board variation would not cause this, so let
me have a stab at it tomorrow.

Thanks,
Bhupesh