On Thu, Nov 10, 2005 at 11:56:52AM -0800, Linus Torvalds wrote:
> On Thu, 10 Nov 2005, Andrew Morton wrote:
> >
> > IOW we're assuming that no 32-bit architectures will obtain pagetables from
> > slab?
>
> I thought ARM does?
ARM26 does. On ARM, we play some games to weld to page tables together.
(We also duplicate them to give us a level of independence from the MMU
architecture and to give us space for things like young and dirty bits.)
As far as Linux is concerned, a 2nd level page table is one struct page
and L1 entries are two words in size.
I wrote up some docs on this and threw them into a comment in
include/asm-arm/pgtable.h...
--
Russell King
Linux kernel 2.6 ARM Linux - http://www.arm.linux.org.uk/
maintainer of: 2.6 Serial core
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