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Date: Tue, 19 Sep 2017 00:31:03 -0400 From: Nate Watterson <nwatters@...eaurora.org> To: Zhen Lei <thunder.leizhen@...wei.com>, Will Deacon <will.deacon@....com>, Joerg Roedel <joro@...tes.org>, linux-arm-kernel <linux-arm-kernel@...ts.infradead.org>, iommu <iommu@...ts.linux-foundation.org>, Robin Murphy <robin.murphy@....com>, linux-kernel <linux-kernel@...r.kernel.org> Cc: Jinyue Li <lijinyue@...wei.com>, Kefeng Wang <wangkefeng.wang@...wei.com>, Libin <huawei.libin@...wei.com>, Hanjun Guo <guohanjun@...wei.com> Subject: Re: [PATCH v2 0/3] arm-smmu: performance optimization 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 <nwatters@...eaurora.org> 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.
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