On Wednesday 13 April 2005 13:19, Russell King wrote:
> This has come up before. ARM implements dma_mmap_*() to allow this
> to happen, but it never got propagated to the other architectures.
I know, this is why I referenced the other LKML threads. What keeps these
functions from being propagated to the other archs? Are there still
unresolved issues? (x86 not marking RAM pages reserved would be one I
assume)?
>
> Here's the (untested) x86 version. There may be a problem with
> x86 not marking the pages reserved, which is required for
> remap_pfn_range() to work.
So the fact that remap_pfn_range() does not work on pages allocated with
__get_free_pages() is an x86-only issue? Or is it by design?
-Rolf
--
Rolf Offermanns <[email protected]>
SYSGO AG Tel.: +49-6136-9948-0
Am Pfaffenstein 14 Fax: +49-6136-9948-10
55270 Klein-Winternheim http://www.sysgo.com
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