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 9CADCC0015E for ; Mon, 24 Jul 2023 09:31:18 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230323AbjGXJbR (ORCPT ); Mon, 24 Jul 2023 05:31:17 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:42184 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229577AbjGXJbP (ORCPT ); Mon, 24 Jul 2023 05:31:15 -0400 Received: from frasgout.his.huawei.com (frasgout.his.huawei.com [185.176.79.56]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id F2F0DF3 for ; Mon, 24 Jul 2023 02:31:14 -0700 (PDT) Received: from lhrpeml500005.china.huawei.com (unknown [172.18.147.207]) by frasgout.his.huawei.com (SkyGuard) with ESMTP id 4R8ZYY3Hz7z6GD5M; Mon, 24 Jul 2023 17:26:57 +0800 (CST) Received: from localhost (10.202.227.76) by lhrpeml500005.china.huawei.com (7.191.163.240) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2507.27; Mon, 24 Jul 2023 10:31:12 +0100 Date: Mon, 24 Jul 2023 10:31:11 +0100 From: Jonathan Cameron To: Tanmay Jagdale CC: , , , , , , , , , , , Subject: Re: [RESEND PATCH 0/4] Add support for SMMU ECMDQ Message-ID: <20230724103111.0000131d@Huawei.com> In-Reply-To: <20230721063513.33431-1-tanmay@marvell.com> References: <20230721063513.33431-1-tanmay@marvell.com> Organization: Huawei Technologies Research and Development (UK) Ltd. X-Mailer: Claws Mail 4.1.0 (GTK 3.24.33; x86_64-w64-mingw32) MIME-Version: 1.0 Content-Type: text/plain; charset="US-ASCII" Content-Transfer-Encoding: 7bit X-Originating-IP: [10.202.227.76] X-ClientProxiedBy: lhrpeml100001.china.huawei.com (7.191.160.183) To lhrpeml500005.china.huawei.com (7.191.163.240) X-CFilter-Loop: Reflected Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Fri, 21 Jul 2023 02:35:09 -0400 Tanmay Jagdale wrote: > Resending the patches by Zhen Lei that add > support for SMMU's ECMDQ feature. > > I have tested these patches on Marvell SoC that has the ECMDQ feature. Hi Tammay, If sending someone else's series you are 'handling' the patches, so should add your own SoB after the original author's one. Also, given you've tested them, a Tested-by tag would make sense. Any perf numbers you can share would also help push this forwards by showing why people care. I believe Leizhen's numbers were emulation based, so not as good as real hardware for making the justification for the added complexity! Jonathan > > Zhen Lei (4): > iommu/arm-smmu-v3: Add support for ECMDQ register mode > iommu/arm-smmu-v3: Ensure that a set of associated commands are > inserted in the same ECMDQ > iommu/arm-smmu-v3: Add arm_smmu_ecmdq_issue_cmdlist() for non-shared > ECMDQ > iommu/arm-smmu-v3: Add support for less than one ECMDQ per core > > drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.c | 419 +++++++++++++++++++- > drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.h | 37 ++ > 2 files changed, 448 insertions(+), 8 deletions(-) >