Peter Grehan
8e9238c604
Fix bugs with operand ordering and unnecessary sync/eieio ops. Mostly
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obtained from Alpha atomic.h
Approved by: Benno
2003-01-18 11:28:36 +00:00
Peter Grehan
6e1073f023
Fixed branch labels
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Approved by: benno
2002-09-19 04:39:59 +00:00
Benno Rice
dfc02c301d
Make atomic_cmpset_32 correctly return 0 on failure.
2002-02-24 23:31:49 +00:00
Benno Rice
abc5579e8c
Fix the atomic_*_32 operations. These were written before I had the ability
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to test them properly and before I had a working knowledge of GCC asm
constraints.
2001-06-27 12:17:23 +00:00
Benno Rice
7a0e745f1a
Don't initialise ret in atomic_cmpset_32.
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Add more synchronisation.
2001-06-26 13:54:17 +00:00
Benno Rice
e2d53d7c4a
Fix asm constraints for atomic_cmpset_32. This fix may also be needed
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elsewhere.
2001-06-24 06:36:28 +00:00
Benno Rice
d27f1d4c12
This commit (along with one pending in sys/dev/ofw and one in sys/conf) give
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us our first minimal glimpse of PowerPC support.
With this code we can get to the "mountroot>" prompt on my Apple iMac. We
can't get any further due to lack of clock and interrupt handling, among other
things. This does however mean that pmap and VM are initialising.
We're fairly dependant on OpenFirmware at this point, but I hope to add
support for other classes of firmware at a later stage.
Reviewed by: obrien, dfr
2001-06-16 07:14:07 +00:00
Benno Rice
199a2415c0
PowerPC atomic operation functions.
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Some of these are dependant on an inline function (powerpc_mb()) that is
yet to come.
Reviewed by: obrien
2001-01-07 03:46:01 +00:00
David E. O'Brien
b5073b49d9
Shells for the atomic operations FreeBSD needs.
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This is just waiting for a budding PowerPC ASM guy to fill in the blanks.
2001-01-01 23:06:59 +00:00
