linux-kernel - RE: [PATCH] remoteproc: imx_dsp_rproc: Make rsc

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Date:   Wed, 6 Apr 2022 10:18:49 +0000
From:   "S.J. Wang" <shengjiu.wang@....com>
To:     "Daniel Baluta (OSS)" <daniel.baluta@....nxp.com>,
        "linux-remoteproc@...r.kernel.org" <linux-remoteproc@...r.kernel.org>,
        "mathieu.poirier@...aro.org" <mathieu.poirier@...aro.org>,
        "bjorn.andersson@...aro.org" <bjorn.andersson@...aro.org>
CC:     "s.hauer@...gutronix.de" <s.hauer@...gutronix.de>,
        "kernel@...gutronix.de" <kernel@...gutronix.de>,
        "festevam@...il.com" <festevam@...il.com>,
        dl-linux-imx <linux-imx@....com>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "daniel.baluta@...il.com" <daniel.baluta@...il.com>,
        Daniel Baluta <daniel.baluta@....com>
Subject: RE: [PATCH] remoteproc: imx_dsp_rproc: Make rsc_table optional



> 
> There are cases when we want to test a simple "hello world"
> app on the DSP and we do not need a resource table.
> 
> remoteproc core allows us having an optional rsc_table.
> 
> Signed-off-by: Daniel Baluta <daniel.baluta@....com>

Acked-by: Shengjiu Wang <shengjiu.wang@...il.com>

Best regards
Wang Shengjiu

> ---
>  drivers/remoteproc/imx_dsp_rproc.c | 10 +++++++++-
>  1 file changed, 9 insertions(+), 1 deletion(-)
> 
> diff --git a/drivers/remoteproc/imx_dsp_rproc.c
> b/drivers/remoteproc/imx_dsp_rproc.c
> index 2abee78df96e..987ab1add761 100644
> --- a/drivers/remoteproc/imx_dsp_rproc.c
> +++ b/drivers/remoteproc/imx_dsp_rproc.c
> @@ -802,6 +802,14 @@ static void imx_dsp_rproc_kick(struct rproc *rproc,
> int vqid)
>  		dev_err(dev, "%s: failed (%d, err:%d)\n", __func__, vqid,
> err);  }
> 
> +static int imx_dsp_rproc_parse_fw(struct rproc *rproc, const struct
> +firmware *fw) {
> +	if (rproc_elf_load_rsc_table(rproc, fw))
> +		dev_warn(&rproc->dev, "no resource table found for this
> firmware\n");
> +
> +	return 0;
> +}
> +
>  static const struct rproc_ops imx_dsp_rproc_ops = {
>  	.prepare	= imx_dsp_rproc_prepare,
>  	.unprepare	= imx_dsp_rproc_unprepare,
> @@ -809,7 +817,7 @@ static const struct rproc_ops imx_dsp_rproc_ops = {
>  	.stop		= imx_dsp_rproc_stop,
>  	.kick		= imx_dsp_rproc_kick,
>  	.load		= imx_dsp_rproc_elf_load_segments,
> -	.parse_fw	= rproc_elf_load_rsc_table,
> +	.parse_fw	= imx_dsp_rproc_parse_fw,
>  	.sanity_check	= rproc_elf_sanity_check,
>  	.get_boot_addr	= rproc_elf_get_boot_addr,
>  };
> --
> 2.27.0