Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751098AbdISEbH (ORCPT ); Tue, 19 Sep 2017 00:31:07 -0400 Received: from smtp.codeaurora.org ([198.145.29.96]:32936 "EHLO smtp.codeaurora.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750750AbdISEbG (ORCPT ); Tue, 19 Sep 2017 00:31:06 -0400 DMARC-Filter: OpenDMARC Filter v1.3.2 smtp.codeaurora.org 2E8A0601C4 Authentication-Results: pdx-caf-mail.web.codeaurora.org; dmarc=none (p=none dis=none) header.from=codeaurora.org Authentication-Results: pdx-caf-mail.web.codeaurora.org; spf=none smtp.mailfrom=nwatters@codeaurora.org Subject: Re: [PATCH v2 0/3] arm-smmu: performance optimization To: Zhen Lei , Will Deacon , Joerg Roedel , linux-arm-kernel , iommu , Robin Murphy , linux-kernel Cc: Jinyue Li , Kefeng Wang , Libin , Hanjun Guo References: <1505221238-9428-1-git-send-email-thunder.leizhen@huawei.com> From: Nate Watterson Message-ID: <6b051916-c49f-f9d0-81d8-05f857e4672e@codeaurora.org> Date: Tue, 19 Sep 2017 00:31:03 -0400 User-Agent: Mozilla/5.0 (Windows NT 10.0; WOW64; rv:52.0) Gecko/20100101 Thunderbird/52.3.0 MIME-Version: 1.0 In-Reply-To: <1505221238-9428-1-git-send-email-thunder.leizhen@huawei.com> Content-Type: text/plain; charset=utf-8; format=flowed Content-Language: en-US Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1332 Lines: 36 Hi Leizhen, On 9/12/2017 9:00 AM, Zhen Lei wrote: > v1 -> v2: > base on (add02cfdc9bc2 "iommu: Introduce Interface for IOMMU TLB Flushing") > > Zhen Lei (3): > iommu/arm-smmu-v3: put off the execution of TLBI* to reduce lock > confliction > iommu/arm-smmu-v3: add support for unmap an iova range with only one > tlb sync I tested these (2) patches on QDF2400 hardware and saw performance improvements in line with those I reported when testing the original series. I don't have any hardware close at hand to test the 3rd patch in the series so that will have to come from someone else. Tested-by: Nate Watterson Thanks, Nate > iommu/arm-smmu: add support for unmap a memory range with only one tlb > sync > > drivers/iommu/arm-smmu-v3.c | 52 ++++++++++++++++++++++++++++++++++---- > drivers/iommu/arm-smmu.c | 10 ++++++++ > drivers/iommu/io-pgtable-arm-v7s.c | 32 +++++++++++++++-------- > drivers/iommu/io-pgtable-arm.c | 30 ++++++++++++++-------- > drivers/iommu/io-pgtable.h | 1 + > 5 files changed, 99 insertions(+), 26 deletions(-) > -- Qualcomm Datacenter Technologies as an affiliate of Qualcomm Technologies, Inc. Qualcomm Technologies, Inc. is a member of the Code Aurora Forum, a Linux Foundation Collaborative Project.