linux-kernel - Re: [PATCH v2] drm/panfrost: Sync IRQ by job's timeout handler

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Message-ID: <c484069d-f41b-1abe-e17d-2a7624964724@collabora.com>
Date:   Mon, 24 Jul 2023 10:43:11 +0200
From:   AngeloGioacchino Del Regno 
        <angelogioacchino.delregno@...labora.com>
To:     Dmitry Osipenko <dmitry.osipenko@...labora.com>,
        Rob Herring <robh@...nel.org>,
        Steven Price <steven.price@....com>,
        Boris Brezillon <boris.brezillon@...labora.com>
Cc:     dri-devel@...ts.freedesktop.org, linux-kernel@...r.kernel.org,
        kernel@...labora.com
Subject: Re: [PATCH v2] drm/panfrost: Sync IRQ by job's timeout handler

Il 23/07/23 02:01, Dmitry Osipenko ha scritto:
> Panfrost IRQ handler may stuck for a long time, for example this happens
> when there is a bad HDMI connection and HDMI handler takes a long time to
> finish processing, holding Panfrost. Make Panfrost's job timeout handler
> to sync IRQ before checking fence signal status in order to prevent
> spurious job timeouts due to a slow IRQ processing.
> 
> Signed-off-by: Dmitry Osipenko <dmitry.osipenko@...labora.com>

Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@...labora.com>

Also, on MediaTek MT8192 and MT8195 Chromebooks:

Tested-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@...labora.com>