linux-kernel - Re: [PATCH v6 5/6] remoteproc: imx_rproc: Add support for System Manager CPU API

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Message-ID: <CAEnQRZDjfyrcMj5ykvAQX1RzTMBCj-EaiM8SSKePb=6FyG+1cg@mail.gmail.com>
Date: Tue, 13 Jan 2026 12:29:58 +0200
From: Daniel Baluta <daniel.baluta@...il.com>
To: "Peng Fan (OSS)" <peng.fan@....nxp.com>
Cc: Bjorn Andersson <andersson@...nel.org>, Mathieu Poirier <mathieu.poirier@...aro.org>, 
	Rob Herring <robh@...nel.org>, Krzysztof Kozlowski <krzk+dt@...nel.org>, Conor Dooley <conor+dt@...nel.org>, 
	Shawn Guo <shawnguo@...nel.org>, Sascha Hauer <s.hauer@...gutronix.de>, 
	Pengutronix Kernel Team <kernel@...gutronix.de>, Fabio Estevam <festevam@...il.com>, 
	Daniel Baluta <daniel.baluta@....com>, Frank Li <Frank.Li@....com>, 
	linux-remoteproc@...r.kernel.org, devicetree@...r.kernel.org, 
	imx@...ts.linux.dev, linux-arm-kernel@...ts.infradead.org, 
	linux-kernel@...r.kernel.org, Peng Fan <peng.fan@....com>
Subject: Re: [PATCH v6 5/6] remoteproc: imx_rproc: Add support for System
 Manager CPU API

On Fri, Jan 9, 2026 at 2:16 PM Peng Fan (OSS) <peng.fan@....nxp.com> wrote:
>
> From: Peng Fan <peng.fan@....com>
>
> When the System Manager configuration places the M7 core in the same
> Logical Machine(LM) as the A55 cores (M7 LM ID equals A55 LM ID), Linux
> can control M7 using the CPU protocol API. For more details, see the
> previous patch that adds LMM API support.
>
> Changes include:
> - Introduce imx_rproc_ops_sm_cpu for CPU API operations.
> - Reuse imx_rproc_sm_detect_mode to detect shared LM and set priv->ops to
>   imx_rproc_ops_sm_cpu.
> - Implement imx_rproc_sm_cpu_{start,stop} to handle M7 start and stop.
>
> Signed-off-by: Peng Fan <peng.fan@....com>

Reviewed-by: Daniel Baluta <daniel.baluta@....com>