Date: Sat, 29 Mar 2003 17:16:19 -0800 (PST) From: Jake Burkholder <jake@FreeBSD.org> To: src-committers@FreeBSD.org, cvs-src@FreeBSD.org, cvs-all@FreeBSD.org Subject: cvs commit: src/sys/i386/i386 db_interface.c pmap.c src/sys/i386/include pmap.h Message-ID: <200303300116.h2U1GJ0L036670@repoman.freebsd.org>
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jake 2003/03/29 17:16:19 PST
FreeBSD src repository
Modified files:
sys/i386/i386 db_interface.c pmap.c
sys/i386/include pmap.h
Log:
- Convert all uses of pmap_pte and get_ptbase to pmap_pte_quick. When
accessing an alternate address space this causes 1 page table page at
a time to be mapped in, rather than using the recursive mapping technique
to map in an entire alternate address space. The recursive mapping
technique changes large portions of the address space and requires global
tlb flushes, which seem to cause problems when PAE is enabled. This will
also allow IPIs to be avoided when mapping in new page table pages using
the same technique as is used for pmap_copy_page and pmap_zero_page.
Sponsored by: DARPA, Network Associates Laboratories
Revision Changes Path
1.72 +3 -3 src/sys/i386/i386/db_interface.c
1.399 +108 -177 src/sys/i386/i386/pmap.c
1.91 +1 -1 src/sys/i386/include/pmap.h
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