[POWERPC] spufs: serialize SLB invalidation against SLB loading

Browse source

There is a potential race between flushes of the entire SLB in the MFC
and the point where new entries are being established. The problem is
that we might put a ESID entry into the MFC SLB when the VSID entry has
just been cleared by the global flush.

This can be circumvented by holding the register_lock throughout both
the flushing and the creation of SLB entries.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Jeremy Kerr <jk@ozlabs.org>

...

This commit is contained in:

Arnd Bergmann 2008-02-28 06:06:30 +01:00 • committed by Jeremy Kerr

parent cc4b7c1814

commit c92a1acb67

1 changed files with 9 additions and 3 deletions

Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL

Download patch file Download diff file Expand all files Collapse all files

12

arch/powerpc/platforms/cell/spu_base.c

View file