BMC/Intel-BMC/linux.git/arch/sparc/lib/atomic_64.S, branch dev

locking, sparc64: Fix atomics

2014-09-10T09:45:04+00:00

The patch folding the atomic ops had a silly fail in the _return primitives. Fixes: 4f3316c2b5fe ("locking,arch,sparc: Fold atomic_ops") Reported-by: Guenter Roeck Tested-by: Guenter Roeck Signed-off-by: Peter Zijlstra (Intel) Cc: "David S. Miller" Cc: Stephen Rothwell Cc: David S. Miller Cc: Linus Torvalds Cc: sparclinux@vger.kernel.org Link: http://lkml.kernel.org/r/20140902094016.GD31157@worktop.ger.corp.intel.com Signed-off-by: Ingo Molnar

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: Support atomic64_dec_if_positive properly.

2012-11-10T03:37:59+00:00

Sparc32 already supported it, as a consequence of using the generic atomic64 implementation. And the sparc64 implementation is rather trivial. This allows us to set ARCH_HAS_ATOMIC64_DEC_IF_POSITIVE for all of sparc, and avoid the annoying warning from lib/atomic64_test.c Signed-off-by: David S. Miller

sparc: Convert some assembler over to linakge.h's ENTRY/ENDPROC

2012-05-12T03:33:22+00:00

Use those, instead of doing it all by hand. Signed-off-by: David S. Miller

sparc64: Make lock backoff really a NOP on UP builds.

2010-08-19T05:53:26+00:00

As noticed by Mikulas Patocka, the backoff macros don't completely nop out for UP builds, we still get a branch always and a delay slot nop. Fix this by making the branch to the backoff spin loop selective, then we can nop out the spin loop completely. Signed-off-by: David S. Miller

sparc64: simple microoptimizations for atomic functions

2010-08-19T05:51:08+00:00

Simple microoptimizations for sparc64 atomic functions: Save one instruction by using a delay slot. Use %g1 instead of %g7, because %g1 is written earlier. Signed-off-by: Mikulas Patocka Signed-off-by: David S. Miller

sparc,sparc64: unify lib/

2008-12-04T17:17:19+00:00

o Renamed files in sparc64 to _64.S when identical to sparc32 files. o iomap.c were equal for sparc32 and sparc64 o adjusted sparc/Makefile now we have only one lib/ Signed-off-by: Sam Ravnborg Signed-off-by: David S. Miller