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author | Christian Ehrhardt <christian.ehrhardt@canonical.com> | 2017-05-16 14:51:32 +0200 |
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committer | Christian Ehrhardt <christian.ehrhardt@canonical.com> | 2017-05-16 16:20:45 +0200 |
commit | 7595afa4d30097c1177b69257118d8ad89a539be (patch) | |
tree | 4bfeadc905c977e45e54a90c42330553b8942e4e /lib/librte_eal/common/include/generic/rte_atomic.h | |
parent | ce3d555e43e3795b5d9507fcfc76b7a0a92fd0d6 (diff) |
Imported Upstream version 17.05
Change-Id: Id1e419c5a214e4a18739663b91f0f9a549f1fdc6
Signed-off-by: Christian Ehrhardt <christian.ehrhardt@canonical.com>
Diffstat (limited to 'lib/librte_eal/common/include/generic/rte_atomic.h')
-rw-r--r-- | lib/librte_eal/common/include/generic/rte_atomic.h | 27 |
1 files changed, 27 insertions, 0 deletions
diff --git a/lib/librte_eal/common/include/generic/rte_atomic.h b/lib/librte_eal/common/include/generic/rte_atomic.h index 43a704ec..7b81705b 100644 --- a/lib/librte_eal/common/include/generic/rte_atomic.h +++ b/lib/librte_eal/common/include/generic/rte_atomic.h @@ -100,6 +100,33 @@ static inline void rte_smp_wmb(void); */ static inline void rte_smp_rmb(void); +/** + * General memory barrier for I/O device + * + * Guarantees that the LOAD and STORE operations that precede the + * rte_io_mb() call are visible to I/O device or CPU before the + * LOAD and STORE operations that follow it. + */ +static inline void rte_io_mb(void); + +/** + * Write memory barrier for I/O device + * + * Guarantees that the STORE operations that precede the + * rte_io_wmb() call are visible to I/O device before the STORE + * operations that follow it. + */ +static inline void rte_io_wmb(void); + +/** + * Read memory barrier for IO device + * + * Guarantees that the LOAD operations on I/O device that precede the + * rte_io_rmb() call are visible to CPU before the LOAD + * operations that follow it. + */ +static inline void rte_io_rmb(void); + #endif /* __DOXYGEN__ */ /** |