Subject: Re: pmap stuff
To: Todd Vierling <tv@pobox.com>
From: Jason Thorpe <thorpej@nas.nasa.gov>
List: port-arm32
Date: 08/25/1998 10:24:51
On Tue, 25 Aug 1998 09:37:41 -0400 (EDT) 
 Todd Vierling <tv@pobox.com> wrote:

 > : b) the swapping out of L1 page tables so that we can do away with the
 > : maxproc= stuff. Is this limited to arm32 only?
 > 
 > Limited to arm32 only (though, IIRC, Alpha has some similar annoyances that
 > have been worked around).

Uh... On the Alpha, the problem was that LARGE amounts of KVA space were
being wasted on page tables.  When I rewrote page table management in the
Alpha pmap, I changed it to use KSEG, the direct-mapped segment.  I don't
think the arm32 has an analog.

Jason R. Thorpe                                       thorpej@nas.nasa.gov
NASA Ames Research Center                            Home: +1 408 866 1912
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