From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 8172CEB64D7 for ; Fri, 16 Jun 2023 09:06:52 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1344026AbjFPJGv (ORCPT ); Fri, 16 Jun 2023 05:06:51 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:53880 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1343975AbjFPJGX (ORCPT ); Fri, 16 Jun 2023 05:06:23 -0400 Received: from dfw.source.kernel.org (dfw.source.kernel.org [IPv6:2604:1380:4641:c500::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id D636E3C3C for ; Fri, 16 Jun 2023 02:04:25 -0700 (PDT) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits)) (No client certificate requested) by dfw.source.kernel.org (Postfix) with ESMTPS id 5D79D63185 for ; Fri, 16 Jun 2023 09:04:25 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 4679FC433C0; Fri, 16 Jun 2023 09:04:24 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1686906264; bh=ApZSchng3QVjySvucr/CxJMq9FxqU7kumKKqVh5yzjg=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=Y7HysZYaeJ0B4uWVDfOff4vQKFAoKJEiHuYfBYQMxF6hFbR/+ho4s/XMDx0N4rAMx s0uAvcbbXiMWxCEpQQl4np+g/cg/SnlPqOZgNVth8b6gNPLEKTH4hKqeOFQuLW5D4x cuOCGn5z+aqqriaZ6ruOJWHXLypG7+dEy7CYWzfs= Date: Fri, 16 Jun 2023 11:04:21 +0200 From: Greg KH To: Alison Wang Cc: "linux-kernel@vger.kernel.org" , "linux-arm-kernel@lists.infradead.org" , Leo Li , Forrest Shi , "X.F. Ren" , Feng Guo Subject: Re: [EXT] Re: [PATCH 0/8] ethosu: Add Arm Ethos-U driver Message-ID: <2023061646-coil-broadly-9efc@gregkh> References: <20230616055913.2360-1-alison.wang@nxp.com> <2023061647-upward-petty-7695@gregkh> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Fri, Jun 16, 2023 at 08:26:28AM +0000, Alison Wang wrote: > > 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. Nice, so why isn't this under drivers/accel/ then? Does it not need that framework? > 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 . Please put that in the documentation for the commit. thanks, greg k-h