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

sh: migrate to arch/sh/include/

2008-07-28T23:09:44Z

This follows the sparc changes a439fe51a1f8eb087c22dd24d69cebae4a3addac. Most of the moving about was done with Sam's directions at: http://marc.info/?l=linux-sh&m=121724823706062&w=2 with subsequent hacking and fixups entirely my fault. Signed-off-by: Sam Ravnborg Signed-off-by: Paul Mundt

sh: GUSA atomic rollback support.

2008-01-28T04:18:58Z

This implements kernel-level atomic rollback built on top of gUSA, as an alternative non-IRQ based atomicity method. This is generally a faster method for platforms that are lacking the LL/SC pairs that SH-4A and later use, and is only supportable on legacy cores. Signed-off-by: Stuart Menefy Signed-off-by: Paul Mundt

sh: Split out atomic ops logically.

2006-12-11T23:42:08Z

We have a few different ways to do the atomic operations, so split them out in to different headers rather than bloating atomic.h. Kernelspace gUSA will take this up to a third implementation. Signed-off-by: Paul Mundt

sh: Fixup movli.l/movco.l atomic ops for gcc4.

2006-12-06T01:45:40Z

gcc4 gets a bit pissy about the outputs: include/asm/atomic.h: In function 'atomic_add': include/asm/atomic.h:37: error: invalid lvalue in asm statement include/asm/atomic.h:30: error: invalid lvalue in asm output 1 ... this ended up being a thinko anyways, so just fix it up. Verified for proper behaviour with the older toolchains, too. Signed-off-by: Paul Mundt

sh: New atomic ops for SH-4A movli.l/movco.l

2006-09-27T08:52:19Z

SH-4A implements LL/SC instructions, so we implement a simple set of atomic operations using these. Signed-off-by: Paul Mundt

sh: Various cosmetic cleanups.

2006-09-27T03:31:01Z

We had quite a bit of whitespace damage, clean most of it up.. Signed-off-by: Stuart Menefy Signed-off-by: Arthur Othieno Signed-off-by: Paul Mundt

[PATCH] mutex subsystem, add atomic_xchg() to all arches

2006-01-09T23:59:17Z

add atomic_xchg() to all the architectures. Needed by the new mutex code. Signed-off-by: Ingo Molnar Signed-off-by: Arjan van de Ven

[PATCH] atomic_long_t & include/asm-generic/atomic.h V2

2006-01-06T16:33:29Z

Several counters already have the need to use 64 atomic variables on 64 bit platforms (see mm_counter_t in sched.h). We have to do ugly ifdefs to fall back to 32 bit atomic on 32 bit platforms. The VM statistics patch that I am working on will also make more extensive use of atomic64. This patch introduces a new type atomic_long_t by providing definitions in asm-generic/atomic.h that works similar to the c "long" type. Its 32 bits on 32 bit platforms and 64 bits on 64 bit platforms. Also cleans up the determination of the mm_counter_t in sched.h. Signed-off-by: Christoph Lameter Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds

[PATCH] atomic: inc_not_zero

2005-11-14T02:14:16Z

Introduce an atomic_inc_not_zero operation. Make this a special case of atomic_add_unless because lockless pagecache actually wants atomic_inc_not_negativeone due to its offset refcount. Signed-off-by: Nick Piggin Cc: "Paul E. McKenney" Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds

[PATCH] atomic: cmpxchg

2005-11-14T02:14:16Z

Introduce an atomic_cmpxchg operation. Signed-off-by: Nick Piggin Cc: "Paul E. McKenney" Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds