CONFIG_HIGHMEM on PPC

Roman Zippel zippel at fh-brandenburg.de
Thu Jan 25 20:25:38 EST 2001


Hi,

On Thu, 25 Jan 2001, Dan Malek wrote:

> When HIGHMEM is used, memory pages are mapped to virtual addresses
> that are not 1:1 mapped.  Our simple virt_to_phys macros won't work
> with HIGHMEM pages.

And they don't have to. If you have a highmem page, use kmap to get
temporary virtual mapping. On the other hand most of the drivers should
never see a highmem page.

> I would like to know who works on APUS as well.

I do currently.

bye, Roman


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