Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752803AbdDKEkM (ORCPT ); Tue, 11 Apr 2017 00:40:12 -0400 Received: from edison.jonmasters.org ([173.255.233.168]:35056 "EHLO edison.jonmasters.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751587AbdDKEkL (ORCPT ); Tue, 11 Apr 2017 00:40:11 -0400 To: Catalin Marinas , Imran Khan References: <1458120743-12145-1-git-send-email-opensource.ganesh@gmail.com> <20160321171403.GE25466@e104818-lin.cambridge.arm.com> <10fef112-37f1-0a1b-b5af-435acd032f01@codeaurora.org> <4525901c-45d4-6bd8-eec6-ae92977f16d1@codeaurora.org> <20170406155825.GA7705@e104818-lin.cambridge.arm.com> Cc: "\"Chalamarla," "Tirumalesh\"" ";" Ganesh Mahendran , open list , linux-arm-kernel@lists.infradead.org, "open list:ARM/QUALCOMM SUPPORT" From: Jon Masters Organization: World Organi{s,z}ation Of Broken Dreams Message-ID: <5d1fc066-d551-31cf-51bc-8fb17d7e2ec3@jonmasters.org> Date: Tue, 11 Apr 2017 00:40:09 -0400 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:45.0) Gecko/20100101 Thunderbird/45.0 MIME-Version: 1.0 In-Reply-To: <20170406155825.GA7705@e104818-lin.cambridge.arm.com> Content-Type: text/plain; charset=windows-1252 Content-Transfer-Encoding: 7bit X-SA-Exim-Connect-IP: 74.92.29.237 X-SA-Exim-Mail-From: jcm@jonmasters.org Subject: Re: [PATCH] Revert "arm64: Increase the max granular size" X-SA-Exim-Version: 4.2.1 (built Sun, 08 Nov 2009 07:31:22 +0000) X-SA-Exim-Scanned: Yes (on edison.jonmasters.org) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 385 Lines: 11 On 04/06/2017 11:58 AM, Catalin Marinas wrote: > The Cavium guys haven't shown any numbers (IIUC) to back the > L1_CACHE_BYTES performance improvement but I would not revert the > original commit since ARCH_DMA_MINALIGN definitely needs to cover the > maximum available cache line size, which is 128 for them. I am pinging them via other channels to ensure they've seen this. Jon.