This patch adds empty functions for CPU flags operations to support DPDK,
since tile processor doesn't have CPU flag hardware registers.
Signed-off-by: Zhigang Lu <zlu at ezchip.com>
Signed-off-by: Cyril Chemparathy <cchemparathy at ezchip.com>
---
.../common/include/arch/tile/rte_cpuflags.h | 78 ++++++++++++++++++++++
1 file changed, 78 insertions(+)
create mode 100644 lib/librte_eal/common/include/arch/tile/rte_cpuflags.h
diff --git a/lib/librte_eal/common/include/arch/tile/rte_cpuflags.h
b/lib/librte_eal/common/include/arch/tile/rte_cpuflags.h
new file mode 100644
index 0000000..872e38c
--- /dev/null
+++ b/lib/librte_eal/common/include/arch/tile/rte_cpuflags.h
@@ -0,0 +1,78 @@
+/*-
+ * 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_CPUFLAGS_TILE_H_
+#define _RTE_CPUFLAGS_TILE_H_
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#include <stdint.h>
+
+#include <rte_common.h>
+
+#include "generic/rte_cpuflags.h"
+
+enum rte_cpu_flag_t {
+ RTE_CPUFLAG_SSE4_1 = 0, /**< SSE4_1 */
+ /* The last item */
+ RTE_CPUFLAG_NUMFLAGS, /**< This should always be the last! */
+};
+
+static const struct feature_entry cpu_feature_table[] = {
+ FEAT_DEF(SSE4_1, 0x00000000, 0, 0, 0)
+};
+
+static inline void
+rte_cpu_get_features(__rte_unused uint32_t leaf,
+ __rte_unused uint32_t subleaf,
+ __rte_unused cpuid_registers_t out)
+{
+}
+
+static inline int
+rte_cpu_get_flag_enabled(__rte_unused enum rte_cpu_flag_t feature)
+{
+ if (feature >= RTE_CPUFLAG_NUMFLAGS)
+ /* Flag does not match anything in the feature tables */
+ return -ENOENT;
+
+ return 0;
+}
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* _RTE_CPUFLAGS_TILE_H_ */
--
2.1.2
