diff options
| author |   Sirshak Das <sirshak.das@arm.com> | 2018-10-03 22:53:51 +0000 |
|---|---|---|
| committer |   Damjan Marion <dmarion@me.com> | 2018-10-19 07:10:47 +0000 |
| commit | 2f6d7bb93c157b874efb79a2d1583a4c368bf89a (patch) | |
| tree | 05dc2867c598cbb8d711f074b4b0eb62dd464f41 /src/vppinfra/smp.h | |
| parent | bf3443b0f852f5a4c551d12f926defbd047f2161 (diff) | |
vppinfra: add atomic macros for __sync builtins
This is first part of addition of atomic macros with only macros for
__sync builtins.
- Based on earlier patch by Damjan (https://gerrit.fd.io/r/#/c/10729/)
Additionally
- clib_atomic_release macro added and used in the absence
of any memory barrier.
- clib_atomic_bool_cmp_and_swap added
Change-Id: Ie4e48c1e184a652018d1d0d87c4be80ddd180a3b
Original-patch-by: Damjan Marion <damarion@cisco.com>
Signed-off-by: Sirshak Das <sirshak.das@arm.com>
Reviewed-by: Honnappa Nagarahalli <honnappa.nagarahalli@arm.com>
Reviewed-by: Ola Liljedahl <ola.liljedahl@arm.com>
Reviewed-by: Steve Capper <steve.capper@arm.com>
Diffstat (limited to 'src/vppinfra/smp.h')
| -rw-r--r-- | src/vppinfra/smp.h | 2 |
1 files changed, 0 insertions, 2 deletions
diff --git a/src/vppinfra/smp.h b/src/vppinfra/smp.h index e4ab66ad5c3..7146e51ac77 100644 --- a/src/vppinfra/smp.h +++ b/src/vppinfra/smp.h @@ -41,9 +41,7 @@ #include <vppinfra/cache.h> #include <vppinfra/os.h> /* for os_panic */ -#define clib_smp_compare_and_swap(addr,new,old) __sync_val_compare_and_swap(addr,old,new) #define clib_smp_swap(addr,new) __sync_lock_test_and_set(addr,new) -#define clib_smp_atomic_add(addr,increment) __sync_fetch_and_add(addr,increment) #if defined (i386) || defined (__x86_64__) #define clib_smp_pause() do { asm volatile ("pause"); } while (0) |