Re: [OT] Wrapping memory.

David Woodhouse (dwmw2@infradead.org)
Tue, 04 Dec 2001 10:45:04 +0000

rmk@arm.linux.org.uk said:
> We actually still map the pages as cached, but when update_mmu_cache
> detects that a page has been mmapped more than once, we ensure that
> the other mappings in the current mm will fault when accessed.

Oooh. Can you do that without having phys->virt lookup? And what about
mappings in other mms? Or are the ARM caches so broken that you have to
flush the whole damn thing on mm switch anyway?

VIVT. Urgh.

--
dwmw2




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