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From: Iuliana Prodan <iuliana.prodan@nxp.com>
To: Shengjiu Wang <shengjiu.wang@nxp.com>,
	andersson@kernel.org, mathieu.poirier@linaro.org,
	shawnguo@kernel.org, s.hauer@pengutronix.de,
	kernel@pengutronix.de, festevam@gmail.com, daniel.baluta@nxp.com,
	linux-remoteproc@vger.kernel.org, imx@lists.linux.dev,
	linux-arm-kernel@lists.infradead.org,
	linux-kernel@vger.kernel.org
Subject: Re: [PATCH] remoteproc: imx_dsp_rproc: only reset carveout memory at RPROC_OFFLINE state
Date: Thu, 18 Dec 2025 01:06:27 +0200	[thread overview]
Message-ID: <ad45e803-1235-4320-a87b-a60b18df2cf0@nxp.com> (raw)
In-Reply-To: <20251216074216.447193-1-shengjiu.wang@nxp.com>

On 12/16/2025 9:42 AM, Shengjiu Wang wrote:
> Don't need to reset memory at suspend and resume stage, because some
> memory is used to save the software state for resume, if it is cleared,
> the resume operation can fail.
> 
> Fixes: c4c432dfb00f ("remoteproc: imx_dsp_rproc: Add support of recovery and coredump process")
> Signed-off-by: Shengjiu Wang <shengjiu.wang@nxp.com>

Reviewed-by: Iuliana Prodan <iuliana.prodan@nxp.com>

Thanks,
Iulia

> ---
>   drivers/remoteproc/imx_dsp_rproc.c | 8 +++++---
>   1 file changed, 5 insertions(+), 3 deletions(-)
> 
> diff --git a/drivers/remoteproc/imx_dsp_rproc.c b/drivers/remoteproc/imx_dsp_rproc.c
> index d03017d6b214..ac8aa71aa56c 100644
> --- a/drivers/remoteproc/imx_dsp_rproc.c
> +++ b/drivers/remoteproc/imx_dsp_rproc.c
> @@ -984,9 +984,11 @@ static int imx_dsp_rproc_load(struct rproc *rproc, const struct firmware *fw)
>   	 * Clear buffers after pm rumtime for internal ocram is not
>   	 * accessible if power and clock are not enabled.
>   	 */
> -	list_for_each_entry(carveout, &rproc->carveouts, node) {
> -		if (carveout->va)
> -			memset(carveout->va, 0, carveout->len);
> +	if (rproc->state == RPROC_OFFLINE) {
> +		list_for_each_entry(carveout, &rproc->carveouts, node) {
> +			if (carveout->va)
> +				memset(carveout->va, 0, carveout->len);
> +		}
>   	}
>   
>   	ret = imx_dsp_rproc_elf_load_segments(rproc, fw);


      parent reply	other threads:[~2025-12-18  2:30 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2025-12-16  7:42 Shengjiu Wang
2025-12-16  8:52 ` Daniel Baluta
2025-12-17 23:06 ` Iuliana Prodan [this message]

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