BMC/Intel-BMC/linux.git/arch/hexagon/include/asm/atomic.h, branch dev-4.6

atomic, arch: Audit atomic_{read,set}()

2015-09-23T07:54:28+00:00

This patch makes sure that atomic_{read,set}() are at least {READ,WRITE}_ONCE(). We already had the 'requirement' that atomic_read() should use ACCESS_ONCE(), and most archs had this, but a few were lacking. All are now converted to use READ_ONCE(). And, by a symmetry and general paranoia argument, upgrade atomic_set() to use WRITE_ONCE(). Signed-off-by: Peter Zijlstra (Intel) Cc: Andrew Morton Cc: Dmitry Vyukov Cc: Linus Torvalds Cc: Paul E. McKenney Cc: Peter Zijlstra Cc: Thomas Gleixner Cc: james.hogan@imgtec.com Cc: linux-kernel@vger.kernel.org Cc: oleg@redhat.com Cc: will.deacon@arm.com Signed-off-by: Ingo Molnar

atomic: Provide atomic_{or,xor,and}

2015-07-27T12:06:24+00:00

Implement atomic logic ops -- atomic_{or,xor,and}. These will replace the atomic_{set,clear}_mask functions that are available on some archs. Signed-off-by: Peter Zijlstra (Intel) Signed-off-by: Thomas Gleixner

hexagon: Provide atomic_{or,xor,and}

2015-07-27T12:06:22+00:00

locking,arch,hexagon: Fold atomic_ops

2014-08-14T10:48:06+00:00

OK, no LoC saved in this case because the !return variants were defined in terms of the return ops. Still do it because this also prepares for easy addition of new ops. Signed-off-by: Peter Zijlstra Acked-by: Richard Kuo Cc: Linus Torvalds Cc: Paul E. McKenney Cc: Vineet Gupta Cc: linux-hexagon@vger.kernel.org Link: http://lkml.kernel.org/r/20140508135852.171567636@infradead.org Signed-off-by: Ingo Molnar

arch,hexagon: Convert smp_mb__*()

2014-04-18T12:20:35+00:00

Hexagon uses asm-gemeric/barrier.h and its smp_mb() is barrier(). Therefore we can use the default implementation that uses smp_mb(). Signed-off-by: Peter Zijlstra Acked-by: Paul E. McKenney Link: http://lkml.kernel.org/n/tip-87irqrrbgizeojjfdqhypud3@git.kernel.org Cc: Linus Torvalds Cc: Richard Kuo Cc: Vineet Gupta Cc: linux-hexagon@vger.kernel.org Cc: linux-kernel@vger.kernel.org Signed-off-by: Ingo Molnar

Hexagon: fix atomic_set

2014-04-04T23:20:02+00:00

Normal writes in our our architecture don't invalidate lock reservations. Signed-off-by: Richard Kuo

arch: Move smp_mb__{before,after}_atomic_{inc,dec}.h into asm/atomic.h

2014-01-12T09:37:14+00:00

Move the barriers functions that depend on the atomic implementation into the atomic implementation. Reviewed-by: Paul E. McKenney Signed-off-by: Peter Zijlstra Acked-by: Vineet Gupta [for arch/arc bits] Cc: Peter Zijlstra Cc: Linus Torvalds Cc: Andrew Morton Cc: Thomas Gleixner Cc: Paul E. McKenney Link: http://lkml.kernel.org/r/20131213150640.786183683@infradead.org Signed-off-by: Ingo Molnar

Hexagon: update copyright dates

2013-05-01T00:40:27+00:00

Signed-off-by: Richard Kuo

Hexagon: fix __atomic_add_unless

2013-05-01T00:40:22+00:00

Signed-off-by: Richard Kuo

Hexagon: Copyright marking changes

2012-10-18T22:07:21+00:00

Code Aurora Forum (CAF) is becoming a part of Linux Foundation Labs. Signed-off-by: Richard Kuo