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 X-Spam-Level: X-Spam-Status: No, score=-2.4 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE, SPF_PASS,USER_AGENT_SANE_1 autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id DB4DCC43603 for ; Tue, 10 Dec 2019 10:18:56 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id AC6DA2053B for ; Tue, 10 Dec 2019 10:18:56 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=linaro.org header.i=@linaro.org header.b="aGoM1Sg4" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727335AbfLJKSz (ORCPT ); Tue, 10 Dec 2019 05:18:55 -0500 Received: from mail-pg1-f193.google.com ([209.85.215.193]:46409 "EHLO mail-pg1-f193.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727032AbfLJKSz (ORCPT ); Tue, 10 Dec 2019 05:18:55 -0500 Received: by mail-pg1-f193.google.com with SMTP id z124so8658352pgb.13 for ; Tue, 10 Dec 2019 02:18:55 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; h=date:from:to:cc:subject:message-id:references:mime-version :content-disposition:in-reply-to:user-agent; bh=MjJMrLdfpPJ4Sc3kZhH/VjXjH5+SHZoVHKv3pR43FLk=; b=aGoM1Sg4g9adkhnRSZkca8ipBYqH5zDXO6Sn8dVvkuMuBaD0+kTFKL8siM4sm9zEp7 lGLuxvo/M9CNikbqj3KnIxLENsqlMB9CZ8PPWH5BrjONlfLYN1Pc3R5CDMeM0B96mIst p1VtxX7v/OfIUeBmMI+Wkm0Qnpv7Wmi0KqEBGkU9Won8QYiXe83qsocnN3L0z2o3lFyP 8ftiMcAZXD8h9ZQkzg/OQiOYqfFuSPDH8PynDld/iot3oJPCg4ol6S+rLBR87MDV1PJB xCVbzdQ8FISzsF9bgU3shE4ipMBny5JTBWws2h6l2pV7y7EHlhjtTatKLqNIupIwgRnI JcaQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:date:from:to:cc:subject:message-id:references :mime-version:content-disposition:in-reply-to:user-agent; bh=MjJMrLdfpPJ4Sc3kZhH/VjXjH5+SHZoVHKv3pR43FLk=; b=i1NHEe512IDolywS/rwHv+v+fD2+nxuruAeTUNXdIFODFvyKhqiSzTjg6yuQPu3cPS MSER4YidAeA0YNs3en7KvRe+FAmFESZ6c6eeJh6DJAEUCoexPZgY0uW8keNuKuwjegSz s9sXAmTzqWj9Y1n8mTwu4jC8Gd7ZPsDGr/ZM33EvpyS6Zx/7wG7vI2F6HnR+k27l1PYc GZcdpXModYYju7abVMqUSYQU9SPGMS9rT42YTIKhQxxDxY+Nm6H2AkFXmLCXSXdtnpXd ycu/Hofh/r57DTtrcJqMsbPDuxgdjBiMsISs2cr3YfpIQSp75xVoOedrOCLT/kF/w3aI JS1w== X-Gm-Message-State: APjAAAWkCR+uKcujI+FnMdzHy2ItBPie2FPk9tgvMNXUMoqX+cG+t7JP YDFZ47/VETs4NLIGY4lUvTcpAQ== X-Google-Smtp-Source: APXvYqxyHPhqMG4TPXyS2uSioe8CvqmwehPnF4vkNuYU85Y8GyvvVGdr/eAXk14Erkx4+waKABZllQ== X-Received: by 2002:a63:e648:: with SMTP id p8mr23578874pgj.259.1575973134356; Tue, 10 Dec 2019 02:18:54 -0800 (PST) Received: from localhost ([122.171.112.123]) by smtp.gmail.com with ESMTPSA id p16sm2723690pgm.8.2019.12.10.02.18.53 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Tue, 10 Dec 2019 02:18:53 -0800 (PST) Date: Tue, 10 Dec 2019 15:48:51 +0530 From: Viresh Kumar To: Sudeep Holla Cc: Vincent Guittot , Arnd Bergmann , Jassi Brar , linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org Subject: Re: [PATCH] firmware: arm_scmi: Make scmi core independent of transport type Message-ID: <20191210101851.gpayo7bnyf54opyu@vireshk-i7> References: <5c545c2866ba075ddb44907940a1dae1d823b8a1.1575019719.git.viresh.kumar@linaro.org> <20191203120002.GB4171@bogus> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20191203120002.GB4171@bogus> User-Agent: NeoMutt/20180716-391-311a52 Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 03-12-19, 12:00, Sudeep Holla wrote: > I am more interested in this part. As I am aware the only 2 other > transport being discussed is SMC/HVC and new/yet conceptual SPCI(built > on top of SMC/HVC). There are already discussions on the list to make > former as mailbox[1]. While I see both pros and cons with that approach, > there's a need to converge. One main advantage I see with SMC/HVC mailbox > is that it can be used with any other client and not just SCMI. Equally, > the queuing in the mailbox may not be needed with fast SMC/HVC but may > be needed for new SPCI(not yet fully analysed). We were also looking for OPTEE based mailbox which is similar to SPCI. -- viresh