linux-kernel - Re: [PATCH] media: qcom: venus: flip the venus/iris switch

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Message-ID: <aR9umzhuSLKB5G8E@trux>
Date: Thu, 20 Nov 2025 20:40:11 +0100
From: Jorge Ramirez <jorge.ramirez@....qualcomm.com>
To: Bryan O'Donoghue <bod@...nel.org>
Cc: Dmitry Baryshkov <dmitry.baryshkov@....qualcomm.com>,
        Vikash Garodia <vikash.garodia@....qualcomm.com>,
        Dikshita Agarwal <dikshita.agarwal@....qualcomm.com>,
        Abhinav Kumar <abhinav.kumar@...ux.dev>,
        Mauro Carvalho Chehab <mchehab@...nel.org>,
        linux-media@...r.kernel.org, linux-arm-msm@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH] media: qcom: venus: flip the venus/iris switch

On 20/11/25 09:58:18, Bryan O'Donoghue wrote:
> On 19/11/2025 15:18, Dmitry Baryshkov wrote:
> > With the Iris and Venus driver having more or less feature parity for
> > "HFI 6xx" platforms and with Iris gaining support for SC7280, flip the
> > switch. Use Iris by default for SM8250 and SC7280, the platforms which
> > are supported by both drivers, and use Venus only if Iris is not
> > compiled at all. Use IS_ENABLED to strip out the code and data
> > structures which are used by the disabled platforms.
> >
> > Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@....qualcomm.com>
> > ---
> > Note: then intention is to land this in 6.20, which might let us to
> > start dropping those platforms from the Venus driver in 6.21+.
> In principal this seems fine. I think we should have a metrics as opposed to
> vibes based criteria for the drop though i.e. an analysis of encoder/decoder
> features supported and test comparators to show either nop or benefit from
> the switch.

why not just revalidate using the same set of tests used for the particular
platform to be replaced ?

ie, when AR50_LITE support is moved to Iris, perhaps just re-run the tests
detailed in the commit:  https://lwn.net/Articles/1033022/