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

On 23/06/17 09:47, John Garry wrote:

On 22/06/2017 16:53, Robin Murphy wrote:

quoted

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.

Indeed, I pushed the branch out before posting. Functionally it ought to
be identical to v1, so this was more just a heads-up - feel free to
double-check I've not broken anything, but I wouldn't say you need to
throw the full test lab at it again.

Thanks,
Robin.

Thanks,
John

quoted

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(-)