Re: [PATCH v8 0/7] Add non-strict mode support for iommu-dma

[Robin Murphy]

Hi John,

On 2018-09-21 10:20 AM, John Garry wrote:
> On 20/09/2018 17:10, Robin Murphy wrote:
> > Hi all,
> >
> > Hopefully this is the last spin of the series - I've now dropped my light
> > touch and fixed up all the various prose text, plus implemented the 
> > proper
> > quirk support for short-descriptor because it's actually just a trivial
> > cut-and-paste job.
> >
> > Robin.
>
> Hi Robin,
>
> JFYI, I'm trying to test this patchset to get some figures and provide a 
> tested-by tag, but 4/8 seems to rely on "iommu/io-pgtable-arm: Fix race 
> handling in split_blk_unmap()" - more specifically, it seems to rely on 
> the version which Will rewrote in your patch review, and I am not sure 
> on what branch it exists on, if any.

Sorry, I should have said this is based on Will's iommu/devel branch:

https://git.kernel.org/pub/scm/linux/kernel/git/will/linux.git/log/?h=iommu/devel

Robin.

> Thanks,
> John
>
> > Robin Murphy (2):
> >   iommu/io-pgtable-arm-v7s: Add support for non-strict mode
> >   iommu/arm-smmu: Support non-strict mode
> >
> > Zhen Lei (5):
> >   iommu/arm-smmu-v3: Implement flush_iotlb_all hook
> >   iommu/dma: Add support for non-strict mode
> >   iommu: Add "iommu.strict" command line option
> >   iommu/io-pgtable-arm: Add support for non-strict mode
> >   iommu/arm-smmu-v3: Add support for non-strict mode
> >
> >  .../admin-guide/kernel-parameters.txt         | 12 +++
> >  drivers/iommu/arm-smmu-v3.c                   | 89 +++++++++++++-----
> >  drivers/iommu/arm-smmu.c                      | 93 +++++++++++++------
> >  drivers/iommu/dma-iommu.c                     | 32 ++++++-
> >  drivers/iommu/io-pgtable-arm-v7s.c            | 11 ++-
> >  drivers/iommu/io-pgtable-arm.c                | 14 ++-
> >  drivers/iommu/io-pgtable.h                    |  5 +
> >  drivers/iommu/iommu.c                         | 23 +++++
> >  include/linux/iommu.h                         |  1 +
> >  9 files changed, 225 insertions(+), 55 deletions(-)