wireguard-linux/include/asm-mips/atomic.h, branch stable

MIPS: Move headfiles to new location below arch/mips/include

2008-10-11T15:18:52Z

Signed-off-by: Ralf Baechle

[MIPS] Fix bug in atomic_sub_if_positive.

2008-07-04T07:22:15Z

The branch optimization fixes in 2.6.21 introduced a bug in atomic_sub_if_positive that causes it to return even when the sc instruction fails. The result is that e.g. down_trylock becomes unreliable as the semaphore counter is not always decremented. Original MUA-shredded patch from Morten Larsen . Signed-off-by: Ralf Baechle

[MIPS] checkfiles: Fix "need space after that ','" errors.

2007-10-11T22:46:15Z

Signed-off-by: Ralf Baechle

[MIPS] Make support for weakly ordered LL/SC a config option.

2007-07-20T17:57:39Z

None of weakly ordered processor supported in tree need this but it seems like this could change ... Signed-off-by: Ralf Baechle

[MIPS] Fix build error in atomic64_cmpxchg

2007-05-11T13:28:33Z

Signed-off-by: Atsushi Nemoto Signed-off-by: Ralf Baechle

atomic.h: atomic_add_unless as inline. Remove system.h atomic.h circular dependency

2007-05-08T18:15:20Z

atomic_add_unless as inline. Remove system.h atomic.h circular dependency. I agree (with Andi Kleen) this typeof is not needed and more error prone. All the original atomic.h code that uses cmpxchg (which includes the atomic_add_unless) uses defines instead of inline functions, probably to circumvent a circular dependency between system.h and atomic.h on powerpc (which my patch addresses). Therefore, it makes sense to use inline functions that will provide type checking. atomic_add_unless as inline. Remove system.h atomic.h circular dependency. Digging into the FRV architecture shows me that it is also affected by such a circular dependency. Here is the diff applying this against the rest of my atomic.h patches. It applies over the atomic.h standardization patches. Signed-off-by: Mathieu Desnoyers Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds

atomic.h: add atomic64 cmpxchg, xchg and add_unless to mips

2007-05-08T18:15:19Z

Signed-off-by: Mathieu Desnoyers Cc: Ralf Baechle Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds

[MIPS] Lockdep: Fix recursion bug.

2007-03-17T01:03:29Z

trace_hardirqs_off -> atomic_inc -> local_irq_restore -> trace_hardirqs_off Signed-off-by: Ralf Baechle

[MIPS] Improve branch prediction in ll/sc atomic operations.

2007-02-13T22:40:50Z

Now that finally all supported versions of binutils have functioning support for .subsection use .subsection to tweak the branch prediction I did not modify the R10000 errata variants because it seems unclear if this will invalidate the workaround which actually relies on the cheesy prediction of branch likely to cause a misspredict if the sc was successful. Signed-off-by: Ralf Baechle

[MIPS] Cleanup memory barriers for weakly ordered systems.

2006-12-04T22:43:14Z

Also the R4000 / R4600 LL/SC instructions imply a sync so no explicit sync needed. Signed-off-by: Ralf Baechle