linux-kernel - Re: [PATCH v2] drm/msm/adreno: Allow larger address space size

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Message-ID: <CAPaKu7QDoZiPRDAptk7+cfv3Da+oXU7f0f4m6LQiwfzd=x=TuA@mail.gmail.com>
Date:   Sat, 11 Jun 2022 21:02:59 -0700
From:   Chia-I Wu <olvaffe@...il.com>
To:     Rob Clark <robdclark@...il.com>
Cc:     ML dri-devel <dri-devel@...ts.freedesktop.org>,
        freedreno@...ts.freedesktop.org, linux-arm-msm@...r.kernel.org,
        Connor Abbott <cwabbott0@...il.com>,
        Jonathan Marek <jonathan@...ek.ca>,
        Rob Clark <robdclark@...omium.org>,
        Abhinav Kumar <quic_abhinavk@...cinc.com>,
        Dmitry Baryshkov <dmitry.baryshkov@...aro.org>,
        Sean Paul <sean@...rly.run>, David Airlie <airlied@...ux.ie>,
        Daniel Vetter <daniel@...ll.ch>,
        Akhil P Oommen <quic_akhilpo@...cinc.com>,
        Jordan Crouse <jordan@...micpenguin.net>,
        Bjorn Andersson <bjorn.andersson@...aro.org>,
        AngeloGioacchino Del Regno 
        <angelogioacchino.delregno@...labora.com>,
        Vladimir Lypak <vladimir.lypak@...il.com>,
        Emma Anholt <emma@...olt.net>,
        Dan Carpenter <dan.carpenter@...cle.com>,
        open list <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH v2] drm/msm/adreno: Allow larger address space size

On Sun, May 29, 2022 at 11:04 AM Rob Clark <robdclark@...il.com> wrote:
>
> From: Rob Clark <robdclark@...omium.org>
>
> The restriction to 4G was strictly to work around 64b math bug in some
> versions of SQE firmware.  This appears to be fixed in a650+ SQE fw, so
> allow a larger address space size on these devices.
>
> Also, add a modparam override for debugging and igt.
>
> v2: Send the right version of the patch (ie. the one that actually
>     compiles)
>
> Signed-off-by: Rob Clark <robdclark@...omium.org>
Reviewed-by: Chia-I Wu <olvaffe@...il.com>