linux-kernel - Re: [PATCH 07/15] mailbox: mediatek: Add loop pkt flag and irq handling for loop command

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Message-ID: <00f0bae9940be7b397c587c651e23c6c1e19a174.camel@mediatek.com>
Date:   Mon, 25 Sep 2023 05:21:48 +0000
From:   Jason-JH Lin (林睿祥) 
        <Jason-JH.Lin@...iatek.com>
To:     "jassisinghbrar@...il.com" <jassisinghbrar@...il.com>,
        "matthias.bgg@...il.com" <matthias.bgg@...il.com>,
        "krzysztof.kozlowski@...aro.org" <krzysztof.kozlowski@...aro.org>,
        "chunkuang.hu@...nel.org" <chunkuang.hu@...nel.org>,
        "robh+dt@...nel.org" <robh+dt@...nel.org>,
        "krzysztof.kozlowski+dt@...aro.org" 
        <krzysztof.kozlowski+dt@...aro.org>,
        "angelogioacchino.delregno@...labora.com" 
        <angelogioacchino.delregno@...labora.com>
CC:     "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        Singo Chang (張興國) 
        <Singo.Chang@...iatek.com>,
        Johnson Wang (王聖鑫) 
        <Johnson.Wang@...iatek.com>,
        Jason-ch Chen (陳建豪) 
        <Jason-ch.Chen@...iatek.com>,
        "devicetree@...r.kernel.org" <devicetree@...r.kernel.org>,
        Shawn Sung (宋孝謙) 
        <Shawn.Sung@...iatek.com>,
        "linux-mediatek@...ts.infradead.org" 
        <linux-mediatek@...ts.infradead.org>,
        Nancy Lin (林欣螢) <Nancy.Lin@...iatek.com>,
        "conor+dt@...nel.org" <conor+dt@...nel.org>,
        "dri-devel@...ts.freedesktop.org" <dri-devel@...ts.freedesktop.org>,
        Elvis Wang (王军) <Elvis.Wang@...iatek.com>,
        "linux-arm-kernel@...ts.infradead.org" 
        <linux-arm-kernel@...ts.infradead.org>,
        Project_Global_Chrome_Upstream_Group 
        <Project_Global_Chrome_Upstream_Group@...iatek.com>
Subject: Re: [PATCH 07/15] mailbox: mediatek: Add loop pkt flag and irq
 handling for loop command

Hi Krzysztof,

Thanks for the reviews.

On Sat, 2023-09-23 at 20:03 +0200, Krzysztof Kozlowski wrote:
>  	 
> External email : Please do not click links or open attachments until
> you have verified the sender or the content.
>  On 18/09/2023 21:21, Jason-JH.Lin wrote:
> > CMDQ client can use a loop flag for the CMDQ packet to make current
> > command buffer jumps to the beginning when GCE executes to the end
> > of commands buffer.
> > 
> > GCE irq occurs when GCE executes to the end of command instruction.
> > If the CMDQ packet is a loopping command, GCE irq handler can not
> > delete the CMDQ task and disable the GCE thread.
> > 
> > Add cmdq_mbox_stop to support thread disable
> 
> How or where do you add it? I do not see it in this patch. Your
> patchset
> looks randomly organized.

This will be used in cmdq_pkt_finialize_loop() at [PATCH 8/15].

mtk-cmdq-helper.c and mtk-cmdq-mailbox.c are not in the
same maintainer's tree, so I separate this to another patch from [PATCH
8/15].

Regards,
Jason-JH.Lin

> 
> Best regards,
> Krzysztof
> 
>