Messages in this thread |  | | Date | Mon, 16 Dec 2013 11:46:56 -0700 | From | Stephen Warren <> | Subject | Re: [PATCHv7 07/12] iommu/tegra: smmu: register device to iommu dynamically |
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On 12/12/2013 12:57 AM, Hiroshi Doyu wrote: > platform_devices are registered as IOMMU'able dynamically via > add_device() and remove_device().
That says {add,remove}_device() ...
> Tegra SMMU can have multiple address spaces(AS). IOMMU'able devices > can belong to one of them. Multiple IOVA maps are created at boot-up, > which can be attached to devices later. We reserve 2 of them for > static assignment, AS[0] for system default, AS[1] for AHB clusters as > protected domain from others, where there are many traditional > pheripheral devices like USB, SD/MMC. They should be isolated from > some smart devices like host1x for system robustness. Even if smart > devices behaves wrongly, the traditional devices(SD/MMC, USB) wouldn't > be affected, and the system could continue most likely. DMA API(ARM) > needs ARM_DMA_USE_IOMMU to be enabled. > > Signed-off-by: Hiroshi Doyu <hdoyu@nvidia.com> > --- > v6: > Use smmu_iommu_{bound,unbind}_driver() instead of > smmu_iommu_{add,del}_device() to register devices to SMMU.
... yet that says it's been changed to {bound,unbind}_driver(). BTW, what was the reason for this change?
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