RFC MT8173 IOMMU SUPPORT
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Cover letter [RFC v2 PATCH 0/6] MT8173 IOMMU SUPPORT
Quoted 8 lines · Daniel Kurtz
Quoted 4 lines · Yong Wu
This patch adds support for m4u(Multimedia Memory Management Unit),
Currently it only support the m4u with 2 levels of page table on mt8173.It is based on Robin Murphy's arm64: IOMMU-backed DMA mapping[1].
Hi Yong, Robin,
Hi Dan,
Quoted 3 lines
The quoted "arm64 iommu-backed DMA mapping" patch set is from 2015-February. That was over 3 months ago.
What is the status of this work?
Still in progress - I've been hampered a bit by having to rework a whole bunch of SMMU driver changes and other in-development stuff in parallel so I can do at least try to test as much as I can, not to mention various unrelated internal work. It also doesn't help that I also tried re-engineering things for v3 in a way that made some of it nicer, but turned out not to work so well elsewhere.
Quoted 4 lines
Is that still the most recent version of these patches?
If so, is there a plan when an update will be posted?
Or, is there an updated public git repo with a more recent version of these patches?
This is now my primary focus again, so I'll get an updated posting out by the end of next week at the latest.
Quoted 2 lines
My apologies if these questions have been asked and answered before and/or elsewhere.
Not on-list, at any rate, so there's no harm calling it out - helps me get my priorities straight ;)
Thanks,
Robin.