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Add MI flags PMAP_WRITE_COMBINE, PMAP_WRITE_BACK, PMAP_NOCACHE_OVR. Update pmap(9) manpage. hppa: Remove MD PMAP_NOCACHE flag as it exists as MI flag mips: Rename MD PMAP_NOCACHE to PGC_NOCACHE. x86: Implement new MI flags using Page-Attribute Tables. x86: Implement BUS_SPACE_MAP_PREFETCHABLE. Patch presented on tech-kern@: http://mail-index.netbsd.org/tech-kern/2010/06/30/msg008458.html No comments on this last version.