diff options
| author | Petri Savolainen <petri.savolainen@nokia.com> | 2015-10-23 10:00:21 +0300 |
|---|---|---|
| committer | Maxim Uvarov <maxim.uvarov@linaro.org> | 2016-02-08 20:45:24 +0300 |
| commit | 0fca2460ae4f638dca523b0bd557a00f930fb1d3 (patch) | |
| tree | dcf2a41ae0e00a79c35b8c82dda856c5b72d2bc9 /platform/linux-generic | |
| parent | 630b3fa076205c73fcc0843a216d34e0e05be234 (diff) | |
api: atomic: added 32 bit acquire and release
Added 32 bit acquire load/cas and release store/add/sub calls.
These are the minimum set of non-relaxed calls that are needed
for building lock-free algorithms. 64 bit versions can be added
later.
Signed-off-by: Petri Savolainen <petri.savolainen@nokia.com>
Reviewed-by: Mike Holmes <mike.holmes@linaro.org>
Signed-off-by: Maxim Uvarov <maxim.uvarov@linaro.org>
Diffstat (limited to 'platform/linux-generic')
| -rw-r--r-- | platform/linux-generic/include/odp/atomic.h | 32 |
1 files changed, 32 insertions, 0 deletions
diff --git a/platform/linux-generic/include/odp/atomic.h b/platform/linux-generic/include/odp/atomic.h index d99117bc1..f86cb6063 100644 --- a/platform/linux-generic/include/odp/atomic.h +++ b/platform/linux-generic/include/odp/atomic.h @@ -257,6 +257,38 @@ static inline void odp_atomic_min_u64(odp_atomic_u64_t *atom, uint64_t new_min) } } +static inline uint32_t odp_atomic_load_acq_u32(odp_atomic_u32_t *atom) +{ + return __atomic_load_n(&atom->v, __ATOMIC_ACQUIRE); +} + +static inline int odp_atomic_cas_acq_u32(odp_atomic_u32_t *atom, + uint32_t *old_val, uint32_t new_val) +{ + return __atomic_compare_exchange_n(&atom->v, old_val, new_val, + 0 /* strong */, + __ATOMIC_ACQUIRE, + __ATOMIC_RELAXED); +} + +static inline void odp_atomic_store_rls_u32(odp_atomic_u32_t *atom, + uint32_t val) +{ + __atomic_store_n(&atom->v, val, __ATOMIC_RELEASE); +} + +static inline void odp_atomic_add_rls_u32(odp_atomic_u32_t *atom, + uint32_t val) +{ + (void)__atomic_fetch_add(&atom->v, val, __ATOMIC_RELEASE); +} + +static inline void odp_atomic_sub_rls_u32(odp_atomic_u32_t *atom, + uint32_t val) +{ + (void)__atomic_fetch_sub(&atom->v, val, __ATOMIC_RELEASE); +} + /** * @} */ |