Re: [PATCH v2 0/8] io-pgtable lock removal

John Garry
2017-06-23T08:47:16Z

On 22/06/2017 16:53, Robin Murphy wrote:
> The feedback has been promising, so v2 is just a final update to cover
> a handful of memory ordering and cosmetic tweaks that came up when Will
> and I went through this offline.
>
> Thanks,
> Robin.

Hi Robin,

Is it worth us retesting this patchset?

If yes, as for a branch (for convenience), does this one now match v2:
git://linux-arm.org/linux-rm iommu/pgtable

I saw it was rewritten recently.

Thanks,
John

>
>
> Robin Murphy (8):
> iommu/io-pgtable-arm-v7s: Check table PTEs more precisely
> iommu/io-pgtable-arm: Improve split_blk_unmap
> iommu/io-pgtable-arm-v7s: Refactor split_blk_unmap
> iommu/io-pgtable: Introduce explicit coherency
> iommu/io-pgtable-arm: Support lockless operation
> iommu/io-pgtable-arm-v7s: Support lockless operation
> iommu/arm-smmu: Remove io-pgtable spinlock
> iommu/arm-smmu-v3: Remove io-pgtable spinlock
>
> drivers/iommu/arm-smmu-v3.c | 36 ++-----
> drivers/iommu/arm-smmu.c | 48 ++++------
> drivers/iommu/io-pgtable-arm-v7s.c | 179 +++++++++++++++++++++-------------
> drivers/iommu/io-pgtable-arm.c | 191 ++++++++++++++++++++++++-------------
> drivers/iommu/io-pgtable.h | 6 ++
> 5 files changed, 274 insertions(+), 186 deletions(-)
>