kernel/linux.git/arch/sparc/lib/atomic32.c, branch linux-4.4.y

sparc: Provide atomic_{or,xor,and}

2015-07-27T12:06:23+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. Acked-by: David S. Miller Signed-off-by: Peter Zijlstra (Intel) Signed-off-by: Thomas Gleixner

sparc32: Implement xchg and atomic_xchg using ATOMIC_HASH locks

2014-11-07T20:51:44+00:00

Atomicity between xchg and cmpxchg cannot be guaranteed when xchg is implemented with a swap and cmpxchg is implemented with locks. Without this, e.g. mcs_spin_lock and mcs_spin_unlock are broken. Signed-off-by: Andreas Larsson Signed-off-by: David S. Miller

locking,arch,sparc: Fold atomic_ops

2014-08-14T10:48:13+00:00

Many of the atomic op implementations are the same except for one instruction; fold the lot into a few CPP macros and reduce LoC. This also prepares for easy addition of new ops. Signed-off-by: Peter Zijlstra Acked-by: David S. Miller Cc: Bjorn Helgaas Cc: Kirill Tkhai Cc: Linus Torvalds Cc: Paul E. McKenney Cc: Sam Ravnborg Cc: sparclinux@vger.kernel.org Link: http://lkml.kernel.org/r/20140508135852.825281379@infradead.org Signed-off-by: Ingo Molnar

sparc: Fix __atomic_add_unless() return value.

2011-08-04T09:47:40+00:00

Signed-off-by: David S. Miller

sparc: rename atomic_add_unless

2011-07-27T19:53:36+00:00

Should have been done in commit 1af08a1407f4 ("This is in preparation for more generic atomic"). Signed-off-by: Stephen Rothwell Cc: Arun Sharma Cc: David Miller Cc: "Hans-Christian Egtvedt" Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds

atomic: use

2011-07-26T23:49:47+00:00

This allows us to move duplicated code in (atomic_inc_not_zero() for now) to Signed-off-by: Arun Sharma Reviewed-by: Eric Dumazet Cc: Ingo Molnar Cc: David Miller Cc: Eric Dumazet Acked-by: Mike Frysinger Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds

sparc: Replace deprecated spinlock initialization

2011-01-27T11:30:37+00:00

SPIN_LOCK_UNLOCK is deprecated. Use the lockdep capable variant instead. Signed-off-by: Thomas Gleixner Acked-by: David S. Miller

[SPARC32]: Build fix.

2007-05-31T08:52:51+00:00

Fix 6197fe4d720ea3e2ee94cdc7ef32d6c0151199de arch/sparc/lib/atomic32.c: In function '__cmpxchg_u32': arch/sparc/lib/atomic32.c:127: error: 'addr' undeclared (first use in this function) arch/sparc/lib/atomic32.c:127: error: (Each undeclared identifier is reported only once arch/sparc/lib/atomic32.c:127: error: for each function it appears in.) I assume this is what was intended.. Signed-off-by: Andrew Morton Acked-by: William Irwin Signed-off-by: David S. Miller

[SPARC]: Emulate cmpxchg like parisc

2007-05-29T09:51:13+00:00

Signed-off-by: Kyle McMartin Signed-off-by: David S. Miller

[SPARC32]: Fix SMP build regression

2007-03-27T04:49:13+00:00

commit b19cbe2a1695c09c74f83646c4b82b51123b3690 [BRIDGE]: Fix fdb RCU race breaks sparc SMP build because atomic_add_unless is not exported. This patch exports atomic_add_unless and atomic_cmpxchg. Signed-off-by: Robert Reif Signed-off-by: David S. Miller