Date: Wed, 2 Jan 2002 10:49:20 -0800 (PST) From: Thomas Moestl <tmm@FreeBSD.org> To: cvs-committers@FreeBSD.org, cvs-all@FreeBSD.org Subject: cvs commit: src/sys/sparc64/include pmap.h tsb.h src/sys/sparc64/sparc64 pmap.c tsb.c Message-ID: <200201021849.g02InKh17334@freefall.freebsd.org>
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tmm 2002/01/02 10:49:20 PST
Modified files:
sys/sparc64/include pmap.h tsb.h
sys/sparc64/sparc64 pmap.c tsb.c
Log:
1. Implement an optimization for pmap_remove() and pmap_protect(): if a
substantial fraction of the number of entries of tte's in the tsb
would need to be looked up, traverse the tsb instead. This is crucial
in some places, e.g. when swapping out a process, where a certain
pmap_remove() call would take very long time to complete without this.
2. Implement pmap_qenter_flags(), which will become used later
3. Reactivate the instruction cache flush done when mapping as executable.
This is required e.g. when executing files via NFS, but is known to
cause problems on UltraSPARC-IIe CPU's. If you have such a CPU, you
will need to comment this call out for now.
Submitted by: jake (3)
Revision Changes Path
1.11 +1 -0 src/sys/sparc64/include/pmap.h
1.8 +8 -1 src/sys/sparc64/include/tsb.h
1.19 +106 -47 src/sys/sparc64/sparc64/pmap.c
1.9 +28 -0 src/sys/sparc64/sparc64/tsb.c
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