Date: Wed, 31 Mar 2010 22:05:53 +0000 (UTC) From: Marius Strobl <marius@FreeBSD.org> To: cvs-src-old@freebsd.org Subject: cvs commit: src/sys/sparc64/sparc64 pmap.c Message-ID: <201003312206.o2VM6Em5029401@repoman.freebsd.org>
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marius 2010-03-31 22:05:53 UTC
FreeBSD src repository
Modified files: (Branch: RELENG_7)
sys/sparc64/sparc64 pmap.c
Log:
SVN rev 206014 on 2010-03-31 22:05:53Z by marius
MFC: r205399
Improve the KVA space sizing of r186682 (r190080); on machines with large
dTLBs we can actually use all of the available lockable entries of the tiny
dTLB for the kernel TSB. With this change the KVA space sizing happens to
be more in line with the MI one so up to at least 24GB machines KVA doesn't
need to be limited manually. This is just another stopgap though, the
real solution is to take advantage of ASI_ATOMIC_QUAD_LDD_PHYS on CPUs
providing it so we don't need to lock the kernel TSB pages into the dTLB
in the first place.
Revision Changes Path
1.166.2.15 +35 -11 src/sys/sparc64/sparc64/pmap.c
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