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3 Commits

Author SHA1 Message Date
Thomas Bogendoerfer
7a2852e49f [MIPS] IP28: switch to "normal" mode after PROM no longer needed 
SGI-IP28 is running in so called slow mode, when kernel is started
from the PROM. PROM calls must be done in slow mode otherwise the
PROM will issue an error. To get better memory performance we now
switch to normal mode, when the PROM is no longer needed.

Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
 2008-07-15 18:44:32 +01:00
Ralf Baechle
17099b1142 [MIPS] Make support for weakly ordered LL/SC a config option. 
None of weakly ordered processor supported in tree need this but it seems
like this could change ...

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
 2007-07-20 18:57:39 +01:00
Ralf Baechle
0004a9dfea [MIPS] Cleanup memory barriers for weakly ordered systems. 
Also the R4000 / R4600 LL/SC instructions imply a sync so no explicit sync
needed.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
 2006-12-04 22:43:14 +00:00