Re: [PATCH] - Mapping ACPI tables as CACHED

[Len Brown]

> I'll bet we can improve the boot sequence so that
> some of the stuff we do before we have cached mappings
> we can do with cached mappings...

Nope, that is a losing bet...

The early mappings are temporary, but they are cached,
for they use __pgprot(__PAGE_KERNEL_IO), which is 
(__PAGE_KERNEL | _PAGE_IOMAP)

rather than __pgprot(__PAGE_KERNEL_IO_NOCACHE) or its variants.

We just need to update the permanent mappings to match.

cheers,
Len Brown, Intel Open Source Technology Center

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