Module Name:	src
Committed By:	pk
Date:		Sat Aug 16 19:21:23 UTC 2003

Modified Files:
	src/sys/arch/sparc/include: pmap.h
	src/sys/arch/sparc/sparc: pmap.c

Log Message:
sun4/sun4c MMU: keep `wired' status per page, implemented by defining a bit
in the PTE word that is not used by the hardware. Use it to unlock a `pmeg'
if the wired count in a segment drops to zero.


To generate a diff of this commit:
cvs rdiff -r1.69 -r1.70 src/sys/arch/sparc/include/pmap.h
cvs rdiff -r1.266 -r1.267 src/sys/arch/sparc/sparc/pmap.c

Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.