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Re: [PATCH 6/6] iommu/arm-smmu: Make use of phandle iterators in device-tree parsing

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Hi Robin,

On Tue, Mar 22, 2016 at 06:53:48PM +0000, Robin Murphy wrote:
> In a stream-matching implementation, a device may quite legitimately
> own anything up to _all_ of the stream IDs (32768, or 65536 if we
> ever implement support for the SMMUv2 EXID extension), so this is
> only a genuine limit for stream indexing (and if anyone ever
> actually made one of those, I don't think they're running mainline
> on it).

Do you mean we might see a lot more than the currently 128 supported
stream-ids for an smmu?

> Alternatively, how straightforward is it to change the DT on your
> machine? I'll be getting a v2 of [1] out in a couple of weeks (after
> imminent holidays), which already gets rid of MAX_MASTER_STREAMIDS
> altogether, and might also have grown proper SMR support by then.

Hmm, I don't know how to change the DT of this Seattle machine. I think
it is provided by the ACPI BIOS. At least it boots with grub2 and not
u-boot and there is no DT in /boot.


	Joerg

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[PATCH 0/6] of: Implement iterator for phandles Joerg Roedel <joro@8bytes.org> - 2016-03-22 19:00 +0100
  [PATCH 3/6] of: Remove counting special case from __of_parse_phandle_with_args() Joerg Roedel <joro@8bytes.org> - 2016-03-22 19:00 +0100
  [PATCH 4/6] of: Introduce of_for_each_phandle() helper macro Joerg Roedel <joro@8bytes.org> - 2016-03-22 19:00 +0100
  [PATCH 6/6] iommu/arm-smmu: Make use of phandle iterators in device-tree parsing Joerg Roedel <joro@8bytes.org> - 2016-03-22 19:00 +0100
    Re: [PATCH 6/6] iommu/arm-smmu: Make use of phandle iterators in  device-tree parsing Rob Herring <robh+dt@kernel.org> - 2016-03-22 19:40 +0100
      [PATCH v2] iommu/arm-smmu: Make use of phandle iterators in  device-tree device-tree parsing Joerg Roedel <joro@8bytes.org> - 2016-03-23 12:50 +0100
        Re: [PATCH v2] iommu/arm-smmu: Make use of phandle iterators in  device-tree device-tree parsing kbuild test robot <lkp@intel.com> - 2016-03-23 16:20 +0100
    Re: [PATCH 6/6] iommu/arm-smmu: Make use of phandle iterators in  device-tree parsing Robin Murphy <robin.murphy@arm.com> - 2016-03-22 20:00 +0100
      Re: [PATCH 6/6] iommu/arm-smmu: Make use of phandle iterators in  device-tree parsing Joerg Roedel <joro@8bytes.org> - 2016-03-23 13:00 +0100
        Re: [PATCH 6/6] iommu/arm-smmu: Make use of phandle iterators in  device-tree parsing Will Deacon <will.deacon@arm.com> - 2016-03-29 19:30 +0200
    Re: [PATCH 6/6] iommu/arm-smmu: Make use of phandle iterators in  device-tree parsing Will Deacon <will.deacon@arm.com> - 2016-03-29 19:30 +0200
  [PATCH 2/6] of: Move phandle walking to of_phandle_iterator_next() Joerg Roedel <joro@8bytes.org> - 2016-03-22 19:10 +0100
  [PATCH 1/6] of: Introduce struct of_phandle_iterator Joerg Roedel <joro@8bytes.org> - 2016-03-22 19:10 +0100
  Re: [PATCH 0/6] of: Implement iterator for phandles Rob Herring <robh+dt@kernel.org> - 2016-03-22 19:50 +0100
    Re: [PATCH 0/6] of: Implement iterator for phandles Joerg Roedel <joro@8bytes.org> - 2016-03-23 13:00 +0100
      Re: [PATCH 0/6] of: Implement iterator for phandles Rob Herring <robh+dt@kernel.org> - 2016-03-23 21:40 +0100

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