Date: Sat, 20 Feb 2010 16:23:29 +0000 (UTC) From: Nathan Whitehorn <nwhitehorn@FreeBSD.org> To: cvs-src-old@freebsd.org Subject: cvs commit: src/sys/powerpc/aim machdep.c mmu_oea.c mmu_oea64.c uma_machdep.c src/sys/powerpc/include sr.h vmparam.h Message-ID: <201002201623.o1KGNn8P013115@repoman.freebsd.org>
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nwhitehorn 2010-02-20 16:23:29 UTC
FreeBSD src repository
Modified files:
sys/powerpc/aim machdep.c mmu_oea.c mmu_oea64.c
uma_machdep.c
sys/powerpc/include sr.h vmparam.h
Log:
SVN rev 204128 on 2010-02-20 16:23:29Z by nwhitehorn
Reduce KVA pressure on OEA64 systems running in bridge mode by mapping
UMA segments at their physical addresses instead of into KVA. This emulates
the direct mapping behavior of OEA32 in an ad-hoc way. To make this work
properly required sharing the entire kernel PMAP with Open Firmware, so
ofw_pmap is transformed into a stub on 64-bit CPUs.
Also implement some more tweaks to get more mileage out of our limited
amount of KVA, principally by extending KVA into segment 16 until the
beginning of the first OFW mapping.
Reported by: linimon
Revision Changes Path
1.134 +5 -0 src/sys/powerpc/aim/machdep.c
1.134 +2 -2 src/sys/powerpc/aim/mmu_oea.c
1.13 +28 -48 src/sys/powerpc/aim/mmu_oea64.c
1.7 +8 -13 src/sys/powerpc/aim/uma_machdep.c
1.6 +1 -0 src/sys/powerpc/include/sr.h
1.16 +2 -8 src/sys/powerpc/include/vmparam.h
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