linux-kernel - Re: [PATCH Resend v11 12/15] drm/msm/disp/dpu: wait for extra vsync till timing engine status is disabled

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <84079c60-984a-1939-850d-23869c9ce5df@linaro.org>
Date:   Tue, 24 Jan 2023 02:25:30 +0200
From:   Dmitry Baryshkov <dmitry.baryshkov@...aro.org>
To:     Vinod Polimera <quic_vpolimer@...cinc.com>,
        dri-devel@...ts.freedesktop.org, linux-arm-msm@...r.kernel.org,
        freedreno@...ts.freedesktop.org, devicetree@...r.kernel.org
Cc:     linux-kernel@...r.kernel.org, robdclark@...il.com,
        dianders@...omium.org, swboyd@...omium.org,
        quic_kalyant@...cinc.com, quic_khsieh@...cinc.com,
        quic_vproddut@...cinc.com, quic_bjorande@...cinc.com,
        quic_abhinavk@...cinc.com, quic_sbillaka@...cinc.com
Subject: Re: [PATCH Resend v11 12/15] drm/msm/disp/dpu: wait for extra vsync
 till timing engine status is disabled

On 19/01/2023 16:26, Vinod Polimera wrote:
> There can be a race between timing gen disable and vblank irq. The
> wait post timing gen disable may return early but intf disable sequence
> might not be completed. Ensure that, intf status is disabled before
> we retire the function.
> 
> Signed-off-by: Vinod Polimera <quic_vpolimer@...cinc.com>

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

> ---
>   .../gpu/drm/msm/disp/dpu1/dpu_encoder_phys_vid.c    | 21 +++++++++++++++++++++
>   1 file changed, 21 insertions(+)

-- 
With best wishes
Dmitry