[dpdk-dev] [PATCH 02/15] eal/tile: add atomic operations for TileGx
This patch adds architecture specific memory barrier operations for
TileGx.
Signed-off-by: Zhigang Lu
Signed-off-by: Cyril Chemparathy
---
.../common/include/arch/tile/rte_atomic.h | 62 ++
1 file changed, 62 insertions(+)
create mode 100644 lib/librte_eal/common/include/arch/tile/rte_atomic.h
diff --git a/lib/librte_eal/common/include/arch/tile/rte_atomic.h
b/lib/librte_eal/common/include/arch/tile/rte_atomic.h
new file mode 100644
index 000..24c9b0a
--- /dev/null
+++ b/lib/librte_eal/common/include/arch/tile/rte_atomic.h
@@ -0,0 +1,62 @@
+/*-
+ * BSD LICENSE
+ *
+ * Copyright(c) 2014 Tilera Corporation. All rights reserved.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * * Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in
+ * the documentation and/or other materials provided with the
+ * distribution.
+ * * Neither the name of Tilera Corporation nor the names of its
+ * contributors may be used to endorse or promote products derived
+ * from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifndef _RTE_ATOMIC_TILE_H_
+#define _RTE_ATOMIC_TILE_H_
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#include "generic/rte_atomic.h"
+
+static inline void rte_mb(void)
+{
+ __sync_synchronize();
+}
+
+static inline void rte_wmb(void)
+{
+ __sync_synchronize();
+}
+
+static inline void rte_rmb(void)
+{
+ __sync_synchronize();
+}
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* _RTE_ATOMIC_TILE_H_ */
--
2.1.2
[dpdk-dev] [PATCH 02/15] eal/tile: add atomic operations for TileGx
On 12/8/2014 6:28 AM, Neil Horman wrote: > On Mon, Dec 08, 2014 at 04:59:25PM +0800, Zhigang Lu wrote: >> This patch adds architecture specific memory barrier operations for >> TileGx. >> >> Signed-off-by: Zhigang Lu >> Signed-off-by: Cyril Chemparathy >> --- [...] >> +__sync_synchronize(); > I don't see __sync_synchronize defined anywhere. Is that an intrinsic for > gcc, > or a library call? That is a GCC primitive. -- Cyril.
[dpdk-dev] [PATCH 02/15] eal/tile: add atomic operations for TileGx
On Mon, Dec 08, 2014 at 04:59:25PM +0800, Zhigang Lu wrote:
> This patch adds architecture specific memory barrier operations for
> TileGx.
>
> Signed-off-by: Zhigang Lu
> Signed-off-by: Cyril Chemparathy
> ---
> .../common/include/arch/tile/rte_atomic.h | 62
> ++
> 1 file changed, 62 insertions(+)
> create mode 100644 lib/librte_eal/common/include/arch/tile/rte_atomic.h
>
> diff --git a/lib/librte_eal/common/include/arch/tile/rte_atomic.h
> b/lib/librte_eal/common/include/arch/tile/rte_atomic.h
> new file mode 100644
> index 000..24c9b0a
> --- /dev/null
> +++ b/lib/librte_eal/common/include/arch/tile/rte_atomic.h
> @@ -0,0 +1,62 @@
> +/*-
> + * BSD LICENSE
> + *
> + * Copyright(c) 2014 Tilera Corporation. All rights reserved.
> + * All rights reserved.
> + *
> + * Redistribution and use in source and binary forms, with or without
> + * modification, are permitted provided that the following conditions
> + * are met:
> + *
> + * * Redistributions of source code must retain the above copyright
> + * notice, this list of conditions and the following disclaimer.
> + * * Redistributions in binary form must reproduce the above copyright
> + * notice, this list of conditions and the following disclaimer in
> + * the documentation and/or other materials provided with the
> + * distribution.
> + * * Neither the name of Tilera Corporation nor the names of its
> + * contributors may be used to endorse or promote products derived
> + * from this software without specific prior written permission.
> + *
> + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
> + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
> + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
> + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
> + * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
> + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
> + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
> + * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
> + * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
> + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
> + * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
> + */
> +
> +#ifndef _RTE_ATOMIC_TILE_H_
> +#define _RTE_ATOMIC_TILE_H_
> +
> +#ifdef __cplusplus
> +extern "C" {
> +#endif
> +
> +#include "generic/rte_atomic.h"
> +
> +static inline void rte_mb(void)
> +{
> + __sync_synchronize();
> +}
> +
> +static inline void rte_wmb(void)
> +{
> + __sync_synchronize();
> +}
> +
> +static inline void rte_rmb(void)
> +{
> + __sync_synchronize();
I don't see __sync_synchronize defined anywhere. Is that an intrinsic for gcc,
or a library call?
Neil
