linux-kernel - Re: [PATCH V2] remoteproc: imx_rproc: Ignore create mem entry for resource table

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Message-ID: <YiuS/pVVdqFXy9mA@builder.lan>
Date:   Fri, 11 Mar 2022 12:20:46 -0600
From:   Bjorn Andersson <bjorn.andersson@...aro.org>
To:     "Peng Fan (OSS)" <peng.fan@....nxp.com>
Cc:     mathieu.poirier@...aro.org, shawnguo@...nel.org,
        s.hauer@...gutronix.de, kernel@...gutronix.de, festevam@...il.com,
        linux-imx@....com, linux-remoteproc@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
        Peng Fan <peng.fan@....com>
Subject: Re: [PATCH V2] remoteproc: imx_rproc: Ignore create mem entry for
 resource table

On Tue 08 Mar 00:57 CST 2022, Peng Fan (OSS) wrote:

> From: Peng Fan <peng.fan@....com>
> 
> Resource table will not be used for memory allocation, no need to create
> rproc mem entry.

Can you please expand this to cover why the "resource table will not be
used for memory allocation"?

Regards,
Bjorn

> 
> Fixes: b29b4249f8f0c ("remoteproc: imx_rproc: add i.MX specific parse fw hook")
> Signed-off-by: Peng Fan <peng.fan@....com>
> ---
> 
> V2:
>  Add Fixes tag
>  Separate the patch from https://patchwork.kernel.org/project/linux-remoteproc/patch/20220111033333.403448-7-peng.fan@oss.nxp.com/
>  Address typo
> 
>  drivers/remoteproc/imx_rproc.c | 3 +++
>  1 file changed, 3 insertions(+)
> 
> diff --git a/drivers/remoteproc/imx_rproc.c b/drivers/remoteproc/imx_rproc.c
> index 7a096f1891e6..f2bfc9077c19 100644
> --- a/drivers/remoteproc/imx_rproc.c
> +++ b/drivers/remoteproc/imx_rproc.c
> @@ -423,6 +423,9 @@ static int imx_rproc_prepare(struct rproc *rproc)
>  		if (!strcmp(it.node->name, "vdev0buffer"))
>  			continue;
>  
> +		if (!strncmp(it.node->name, "rsc-table", strlen("rsc-table")))
> +			continue;
> +
>  		rmem = of_reserved_mem_lookup(it.node);
>  		if (!rmem) {
>  			dev_err(priv->dev, "unable to acquire memory-region\n");
> -- 
> 2.30.0
>