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Groups > linux.kernel > #1730850 > unrolled thread
| Started by | Zhen Lei <thunder.leizhen@huawei.com> |
|---|---|
| First post | 2017-09-12 15:10 +0200 |
| Last post | 2017-09-19 08:30 +0200 |
| Articles | 3 — 3 participants |
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[PATCH v2 0/3] arm-smmu: performance optimization Zhen Lei <thunder.leizhen@huawei.com> - 2017-09-12 15:10 +0200
Re: [PATCH v2 0/3] arm-smmu: performance optimization Nate Watterson <nwatters@codeaurora.org> - 2017-09-19 06:40 +0200
Re: [PATCH v2 0/3] arm-smmu: performance optimization "Leizhen (ThunderTown)" <thunder.leizhen@huawei.com> - 2017-09-19 08:30 +0200
| From | Zhen Lei <thunder.leizhen@huawei.com> |
|---|---|
| Date | 2017-09-12 15:10 +0200 |
| Subject | [PATCH v2 0/3] arm-smmu: performance optimization |
| Message-ID | <uoT6V-1Hz-5@gated-at.bofh.it> |
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
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(-)
--
2.5.0
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| From | Nate Watterson <nwatters@codeaurora.org> |
|---|---|
| Date | 2017-09-19 06:40 +0200 |
| Message-ID | <uriud-7Qg-3@gated-at.bofh.it> |
| In reply to | #1730850 |
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@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(-) > -- 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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| From | "Leizhen (ThunderTown)" <thunder.leizhen@huawei.com> |
|---|---|
| Date | 2017-09-19 08:30 +0200 |
| Message-ID | <urkcF-xj-17@gated-at.bofh.it> |
| In reply to | #1734652 |
On 2017/9/19 12:31, Nate Watterson wrote: > 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. Thanks a lot. > > Tested-by: Nate Watterson <nwatters@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(-) >> > -- Thanks! BestRegards
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