linux-kernel - Re: [PATCH 01/15] soc: mediatek: Add register definitions for GCE

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Message-ID: <82dd93e59bb8914eba13cb3bc9e831f11feb0616.camel@mediatek.com>
Date:   Mon, 11 Sep 2023 13:38:27 +0000
From:   Shawn Sung (宋孝謙) 
        <Shawn.Sung@...iatek.com>
To:     "p.zabel@...gutronix.de" <p.zabel@...gutronix.de>,
        "airlied@...il.com" <airlied@...il.com>,
        "matthias.bgg@...il.com" <matthias.bgg@...il.com>,
        "daniel@...ll.ch" <daniel@...ll.ch>,
        "angelogioacchino.delregno@...labora.com" 
        <angelogioacchino.delregno@...labora.com>,
        "chunkuang.hu@...nel.org" <chunkuang.hu@...nel.org>,
        "jassisinghbrar@...il.com" <jassisinghbrar@...il.com>
CC:     "linux-arm-kernel@...ts.infradead.org" 
        <linux-arm-kernel@...ts.infradead.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "linux-mediatek@...ts.infradead.org" 
        <linux-mediatek@...ts.infradead.org>,
        Jason-JH Lin (林睿祥) 
        <Jason-JH.Lin@...iatek.com>,
        Nancy Lin (林欣螢) <Nancy.Lin@...iatek.com>,
        Singo Chang (張興國) 
        <Singo.Chang@...iatek.com>,
        Project_Global_Chrome_Upstream_Group 
        <Project_Global_Chrome_Upstream_Group@...iatek.com>
Subject: Re: [PATCH 01/15] soc: mediatek: Add register definitions for GCE

Hi Angelo,

On Thu, 2023-09-07 at 14:11 +0200, AngeloGioacchino Del Regno wrote:
> Il 23/08/23 17:13, Hsiao Chien Sung ha scritto:
> > Add register definitions for GCE so users can use them
> > as a buffer to store data.
> > 
> > Signed-off-by: Hsiao Chien Sung <shawn.sung@...iatek.com>
> > ---
> >   include/linux/soc/mediatek/mtk-cmdq.h | 7 +++++++
> >   1 file changed, 7 insertions(+)
> > 
> > diff --git a/include/linux/soc/mediatek/mtk-cmdq.h
> > b/include/linux/soc/mediatek/mtk-cmdq.h
> > index 649955d2cf5c..3eb95ef34c6c 100644
> > --- a/include/linux/soc/mediatek/mtk-cmdq.h
> > +++ b/include/linux/soc/mediatek/mtk-cmdq.h
> > @@ -14,6 +14,13 @@
> >   #define CMDQ_ADDR_HIGH(addr)	((u32)(((addr) >> 16) &
> > GENMASK(31, 0)))
> >   #define CMDQ_ADDR_LOW(addr)	((u16)(addr) | BIT(1))
> >   
> 
> Please add a comment explaining "TPR"

It means Time Purpose Register. Will remove it in the new version since
it is not being used.

> 
> > +#define CMDQ_TPR_ID		(56)
> > +
> 
> Please add a comment explaining what those definitions are, what is
> "SPR"?

SPR is Specific Purpose Registers. Will add a comment in the next
version.

Thanks,
Hsiao Chien Sung