linux-kernel - Re: [PATCH] drm: msm: adreno: Disable preemption on Adreno 510

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Message-ID: <5cfc6a2b-5b70-c44c-17d4-9c5dfaa33f54@linaro.org>
Date:   Thu, 16 Mar 2023 12:29:23 +0200
From:   Dmitry Baryshkov <dmitry.baryshkov@...aro.org>
To:     Adam Skladowski <a39.skl@...il.com>
Cc:     phone-devel@...r.kernel.org, ~postmarketos/upstreaming@...ts.sr.ht,
        Rob Clark <robdclark@...il.com>,
        Abhinav Kumar <quic_abhinavk@...cinc.com>,
        Sean Paul <sean@...rly.run>, David Airlie <airlied@...il.com>,
        Daniel Vetter <daniel@...ll.ch>,
        Elliot Berman <quic_eberman@...cinc.com>,
        Akhil P Oommen <quic_akhilpo@...cinc.com>,
        Chia-I Wu <olvaffe@...il.com>,
        Douglas Anderson <dianders@...omium.org>,
        AngeloGioacchino Del Regno <kholk11@...il.com>,
        linux-arm-msm@...r.kernel.org, dri-devel@...ts.freedesktop.org,
        freedreno@...ts.freedesktop.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] drm: msm: adreno: Disable preemption on Adreno 510

On 15/03/2023 00:17, Adam Skladowski wrote:
> Downstream driver appears to not support preemption on A510 target,
> trying to use one make device slow and fill log with rings related errors.
> Set num_rings to 1 to disable preemption.
> 
> Suggested-by: Dmitry Baryshkov <dmitry.baryshkov@...aro.org>
> Fixes: e20c9284c8f2 ("drm/msm/adreno: Add support for Adreno 510 GPU")
> Signed-off-by: Adam Skladowski <a39.skl@...il.com>

Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@...aro.org>

-- 
With best wishes
Dmitry