linux-kernel - Re: [PATCH v6 4/8] mailbox: mtk-cmdq: Support GCE loop packets in interrupt handler

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Message-ID: <26c862ec-1613-46fc-ba37-5649fd55e159@collabora.com>
Date: Tue, 28 May 2024 12:24:46 +0200
From: AngeloGioacchino Del Regno <angelogioacchino.delregno@...labora.com>
To: "Jason-JH.Lin" <jason-jh.lin@...iatek.com>,
 Jassi Brar <jassisinghbrar@...il.com>,
 Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
 Rob Herring <robh+dt@...nel.org>, Matthias Brugger <matthias.bgg@...il.com>,
 Chun-Kuang Hu <chunkuang.hu@...nel.org>
Cc: Conor Dooley <conor+dt@...nel.org>,
 Jason-ch Chen <jason-ch.chen@...iatek.com>,
 Singo Chang <singo.chang@...iatek.com>, Nancy Lin <nancy.lin@...iatek.com>,
 Shawn Sung <shawn.sung@...iatek.com>, linux-kernel@...r.kernel.org,
 devicetree@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
 linux-mediatek@...ts.infradead.org, dri-devel@...ts.freedesktop.org,
 Project_Global_Chrome_Upstream_Group@...iatek.com
Subject: Re: [PATCH v6 4/8] mailbox: mtk-cmdq: Support GCE loop packets in
 interrupt handler

Il 26/05/24 01:08, Jason-JH.Lin ha scritto:
> 1. Add a loop flag for CMDQ packet struct.
> CMDQ helper will use a loop flag to mark CMDQ packet as lopping command
> and make current command buffer jumps to the beginning when GCE executes
> to the end of command buffer.
> 
> 2. Add a looping task handle flow in irq handler.
> GCE irq occurs when GCE executes to the end of command(EOC) instruction.
> If the CMDQ packet is a loopping command, GCE irq handler can not
> delete the CMDQ task and disable the GCE thread.
> 
> Signed-off-by: Jason-JH.Lin <jason-jh.lin@...iatek.com>
> Signed-off-by: Hsiao Chien Sung <shawn.sung@...iatek.com>

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