Messages in this thread | | | Date | Tue, 23 May 2023 18:06:23 +0200 | From | Joerg Roedel <> | Subject | Re: [PATCH v4] iommu: Optimise PCI SAC address trick |
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On Fri, Apr 14, 2023 at 06:45:57PM +0100, Robin Murphy wrote: > Sounds good - I'm considerably more confident in this approach, but although > it should not be able to break any scenario which wasn't already broken, it > could potentially still make such a breakage more noticeable. Thus in all > honesty I'd feel happiest giving it a full cycle of -next coverage as well.
I had some second thoughts on this, wouldn't it be better to change the allocator to allocate from lowest addresses first? Then we can just remove the SAC trick and rely on dma-masks only.
Thoughts?
Regards,
Joerg
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