linux-kernel - RE: [EXT] Re: [PATCH 0/8] ethosu: Add Arm Ethos-U driver

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Message-ID: <AM9PR04MB89076472B9A29DDFFB2F958CF458A@AM9PR04MB8907.eurprd04.prod.outlook.com>
Date:   Fri, 16 Jun 2023 08:26:28 +0000
From:   Alison Wang <alison.wang@....com>
To:     Greg KH <gregkh@...uxfoundation.org>
CC:     "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "linux-arm-kernel@...ts.infradead.org" 
        <linux-arm-kernel@...ts.infradead.org>,
        Leo Li <leoyang.li@....com>, Forrest Shi <xuelin.shi@....com>,
        "X.F. Ren" <xiaofeng.ren@....com>, Feng Guo <feng.guo@....com>
Subject: RE: [EXT] Re: [PATCH 0/8] ethosu: Add Arm Ethos-U driver

On Fri, Jun 16, 2023 at 01:59:05PM +0800, Alison Wang wrote:
> This series contains Arm's NPU Ethos-U driver for NXP i.MX93 platform.
>
> Ethos-U Linux driver is to provide an example of how a rich operating 
> system like Linux can dispatch inferences to an Arm Cortex-M 
> subsystem, consisting of an Arm Cortex-M and an Arm Ethos-U NPU.

What is an "inference"?
[Alison Wang] The inference here means machine learning inference. It is the process of
running data points into a machine learning model to calculate an output such as a single 
numerical score. For example, we use this driver, user space application and Cortex-M firmware
to complete an inference about image classification.

Where are the userspace tools (if any) that are needed for this driver to work properly?
[Alison Wang] You could refer to https://github.com/nxp-imx/ethos-u-driver-stack-imx.git .

thanks,

greg k-h