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[POWERPC] Fix rmb to order cacheable vs. noncacheable
authorNick Piggin <npiggin@suse.de>
Wed, 21 May 2008 14:10:56 +0000 (00:10 +1000)
committerPaul Mackerras <paulus@samba.org>
Mon, 16 Jun 2008 05:00:20 +0000 (15:00 +1000)
lwsync is explicitly defined not to have any effect on the ordering of
accesses to device memory, so it cannot be used for rmb(). sync appears
to be the only barrier which fits the bill.

Signed-off-by: Nick Piggin <npiggin@suse.de>
Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
include/asm-powerpc/system.h patch | blob | history

diff --cc include/asm-powerpc/system.h
Simple merge
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