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From:   Javier Martinez Canillas <javierm@redhat.com>
Date:   Wed, 15 Feb 2023 11:57:38 +0100
Message-ID: <CAFOAJEdBbzqkGVqw+vgNYNxyaTHwvjFyskTwjycP820L2tOctA@mail.gmail.com>
Subject: Re: [PATCH] Revert "venus: firmware: Correct non-pix start and end addresses"
To:     Linux regressions mailing list <regressions@lists.linux.dev>
Cc:     Vikash Garodia <vgarodia@qti.qualcomm.com>,
        "linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
        "mka@chromium.org" <mka@chromium.org>,
        Albert Esteve <aesteve@redhat.com>,
        "stanimir.varbanov@linaro.org" <stanimir.varbanov@linaro.org>,
        Enric Balletbo i Serra <eballetb@redhat.com>,
        Andy Gross <agross@kernel.org>,
        Bjorn Andersson <andersson@kernel.org>,
        Konrad Dybcio <konrad.dybcio@linaro.org>,
        Mauro Carvalho Chehab <mchehab@kernel.org>,
        Stanimir Varbanov <stanimir.k.varbanov@gmail.com>,
        "Vikash Garodia (QUIC)" <quic_vgarodia@quicinc.com>,
        "linux-arm-msm@vger.kernel.org" <linux-arm-msm@vger.kernel.org>,
        "linux-media@vger.kernel.org" <linux-media@vger.kernel.org>,
        Fritz Koenig <frkoenig@google.com>,
        "Dikshita Agarwal (QUIC)" <quic_dikshita@quicinc.com>,
        "Rajeshwar Kurapaty (QUIC)" <quic_rkurapat@quicinc.com>
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On Wed, Feb 15, 2023 at 11:53 AM Linux regression tracking (Thorsten
Leemhuis) <regressions@leemhuis.info> wrote:
>
> On 11.02.23 15:27, Linux regression tracking (Thorsten Leemhuis) wrote:
> > On 10.02.23 11:07, Javier Martinez Canillas wrote:
> >> On 2/10/23 10:22, Vikash Garodia wrote:
> >>
> >>>> So what should we do about this folks? Since not allowing the driver to probe on
> >>>> at least SC7180 is a quite serious regression, can we revert for now until a proper
> >>>> fix is figured out?
> >>>
> >>> I am able to repro this issue on sc7180 and discussing with firmware team on the cause
> >>> of reset failure. The original patch was raised for fixing rare SMMU faults during warm
> >>> boot of video hardware. Hence looking to understand the regressing part before we
> >>> proceed to revert.
> >>
> >> Great, if you are working on a proper fix then that would be much better indeed.
> >
> > Yeah, that's great, but OTOH: there is almost certainly just one week
> > before 6.2 will be released. Ideally this should be fixed by then.
> > Vikash, do you think that's in the cards? If not: why not revert this
> > now to make sure 6.2 works fine?
>
> Hmm, no reply. And we meanwhile have Wednesday and 6.2 is almost
> certainly going to be out on Sunday. And the problem was called "a quite
> serious regression" above. So why not quickly fix this with the revert,
> as proposed earlier?
>
> Vikash? Javier?
>

I agree with you, that we should land this revert and then properly
fix the page fault issue in v6.3.

But it's not my call, the v4l2/media folks have to decide that.

-- 
Best regards,

Javier Martinez Canillas
Core Platforms
Red Hat