24 Feb, 2006
1 commit
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Add a newline at the end of the ISYNC_ON_SMP string.
Needed for a subsequent patch.Signed-off-by: Nick Piggin
Signed-off-by: Paul Mackerras
13 Jan, 2006
1 commit
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eieio is only a store - store ordering. When used to order an unlock
operation loads may leak out of the critical region. This is potentially
buggy, one example is if a user wants to atomically read a couple of
values.We can solve this with an lwsync which orders everything except store - load.
I removed the (now unused) EIEIO_ON_SMP macros and the c versions
isync_on_smp and eieio_on_smp now we dont use them. I also removed some
old comments that were used to identify inline spinlocks in assembly,
they dont make sense now our locks are out of line.Another interesting thing was that read_unlock was using an eieio even
though the rest of the spinlock code had already been converted to
use lwsync.Signed-off-by: Anton Blanchard
Signed-off-by: Paul Mackerras
09 Jan, 2006
1 commit
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include/asm-ppc/ had #ifdef __KERNEL__ in all header files that
are not meant for use by user space, include/asm-powerpc does
not have this yet.This patch gets us a lot closer there. There are a few cases
where I was not sure, so I left them out. I have verified
that no CONFIG_* symbols are used outside of __KERNEL__
any more and that there are no obvious compile errors when
including any of the headers in user space libraries.Signed-off-by: Arnd Bergmann
Signed-off-by: Paul Mackerras
25 Sep, 2005
1 commit
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powerpc: Merge atomic.h and memory.h into powerpc
Merged atomic.h into include/powerpc. Moved asm-style HMT_ defines from
memory.h into ppc_asm.h, where there were already HMT_defines; moved c-style
HMT_ defines to processor.h. Renamed memory.h to synch.h to better reflect
its contents.Signed-off-by: Kumar Gala
Signed-off-by: Becky Bruce
Signed-off-by: Jon Loeliger
Signed-off-by: Paul Mackerras
