From mboxrd@z Thu Jan 1 00:00:00 1970 From: Tomasz Figa Subject: Re: Bare metal Code to test Big Little on Arndale Octa (5420) Date: Fri, 02 May 2014 19:43:41 +0200 Message-ID: <5363D94D.3090106@gmail.com> References: <0DC06F23-1FB7-48D0-9341-8CE94A49060E@gmail.com> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Return-path: Received: from mail-qa0-f54.google.com ([209.85.216.54]:51211 "EHLO mail-qa0-f54.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752980AbaEBRnm (ORCPT ); Fri, 2 May 2014 13:43:42 -0400 Received: by mail-qa0-f54.google.com with SMTP id s7so4643135qap.27 for ; Fri, 02 May 2014 10:43:42 -0700 (PDT) In-Reply-To: <0DC06F23-1FB7-48D0-9341-8CE94A49060E@gmail.com> Sender: linux-samsung-soc-owner@vger.kernel.org List-Id: linux-samsung-soc@vger.kernel.org To: armdev , linux-samsung-soc , linaro-kernel@lists.linaro.org, Tushar Behera Hi, On 28.04.2014 07:51, armdev wrote: > Hi, > > We are trying a write a bare metal test code for Switching tasks from A15 Core to A7 core. > As of now we have this article to start with https://lwn.net/Articles/481055/. > > Can the list help us in > a) Where (file/directory ) in Linux kernel code that does the switching code (arch specific) for 5420 ? There is no mainline support for big.LITTLE on Exynos5420 yet. There were some patches [1] posted for MCPM support, though. [1] http://www.spinics.net/lists/arm-kernel/msg321666.html > b) Any test cases for big little on 5420 ? I'm not aware of any, but Exynos5 is not the primary platform I work on. Best regards, Tomasz