Re: Marking a physical page as uncacheable

Jeff Garzik
2000-07-21T13:51:41Z

On Thu, 20 Jul 2000, Timur Tabi wrote:
> ** Reply to message from Manfred Spraul <manfred@colorfullife.com> on Thu, 20
> Jul 2000 18:16:56 +0200
> > You could use ClearPageReserved() + ioremap(), but ioremap() is limited
> > to the first 4 GB.
>
> Is there an ioUNremap()? I need to perform tests on the memory region with the

It's called iounmap. Please take a look at drivers which use the
functions are you interested in... Also look at the docs :)
Documentation/IO-mapping.txt would be particularly helpful in this
instance.

Jeff