[PATCH v2 0/3] arm-smmu: performance optimization
Nate Watterson
nwatters at codeaurora.org
Mon Sep 18 21:31:03 PDT 2017
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 at codeaurora.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(-)
>
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