Date: Mon, 25 Jul 2011 18:41:52 +0000 (UTC) From: Marius Strobl <marius@FreeBSD.org> To: cvs-src-old@freebsd.org Subject: cvs commit: src/sys/boot/sparc64/loader main.c src/sys/sparc64/include cache.h cpu.h tlb.h src/sys/sparc64/sparc64 cache.c cheetah.c machdep.c mp_machdep.c pmap.c spitfire.c zeus.c Message-ID: <201107251842.p6PIgQOp097094@repoman.freebsd.org>
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marius 2011-07-25 18:41:52 UTC
FreeBSD src repository
Modified files: (Branch: RELENG_8)
sys/boot/sparc64/loader main.c
sys/sparc64/include cache.h cpu.h tlb.h
sys/sparc64/sparc64 cache.c cheetah.c machdep.c mp_machdep.c
pmap.c spitfire.c zeus.c
Log:
SVN rev 224370 on 2011-07-25 18:41:52Z by marius
MFC: r223719
- For Cheetah- and Zeus-class CPUs don't flush all unlocked entries from
the TLBs in order to get rid of the user mappings but instead traverse
them an flush only the latter like we also do for the Spitfire-class.
Also flushing the unlocked kernel entries can cause instant faults which
when called from within cpu_switch() are handled with the scheduler lock
held which in turn can cause timeouts on the acquisition of the lock by
other CPUs. This was easily seen with a 16-core V890 but occasionally
also happened with 2-way machines.
While at it, move the SPARC64-V support code entirely to zeus.c. This
causes a little bit of duplication but is less confusing than partially
using Cheetah-class bits for these.
- For SPARC64-V ensure that 4-Mbyte page entries are stored in the 1024-
entry, 2-way set associative TLB.
- In {d,i}tlb_get_data_sun4u() turn off the interrupts in order to ensure
that ASI_{D,I}TLB_DATA_ACCESS_REG actually are read twice back-to-back.
Tested by: Peter Jeremy (16-core US-IV), Michael Moll (2-way SPARC64-V)
Revision Changes Path
1.42.2.9 +63 -25 src/sys/boot/sparc64/loader/main.c
1.15.2.5 +5 -4 src/sys/sparc64/include/cache.h
1.18.2.3 +1 -0 src/sys/sparc64/include/cpu.h
1.29.2.3 +14 -1 src/sys/sparc64/include/tlb.h
1.22.2.6 +3 -3 src/sys/sparc64/sparc64/cache.c
1.10.2.6 +79 -28 src/sys/sparc64/sparc64/cheetah.c
1.155.2.18 +3 -2 src/sys/sparc64/sparc64/machdep.c
1.52.2.13 +4 -2 src/sys/sparc64/sparc64/mp_machdep.c
1.182.2.17 +15 -7 src/sys/sparc64/sparc64/pmap.c
1.8.2.3 +18 -20 src/sys/sparc64/sparc64/spitfire.c
1.1.2.3 +107 -1 src/sys/sparc64/sparc64/zeus.c
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