Imported Upstream version 16.07-rc3

Change-Id: I321148bfa234858ba1986d109470b7aa280cd429
Signed-off-by: Ricardo Salveti <ricardo.salveti@linaro.org>
Signed-off-by: Christian Ehrhardt <christian.ehrhardt@canonical.com>

1 files changed, 45 insertions, 0 deletions

diff --git a/lib/librte_eal/common/arch/x86/rte_spinlock.c b/lib/librte_eal/common/arch/x86/rte_spinlock.c
new file mode 100644
index 00000000..c383e9f0
--- /dev/null
+++ b/lib/librte_eal/common/arch/x86/rte_spinlock.c
@@ -0,0 +1,45 @@
+/*-
+ *   BSD LICENSE
+ *
+ *   Copyright(c) 2010-2014 Intel 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 Intel 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.
+ */
+
+#include <stdint.h>
+
+#include "rte_cpuflags.h"
+
+uint8_t rte_rtm_supported; /* cache the flag to avoid the overhead
+			      of the rte_cpu_get_flag_enabled function */
+
+static void __attribute__((constructor))
+rte_rtm_init(void)
+{
+	rte_rtm_supported = rte_cpu_get_flag_enabled(RTE_CPUFLAG_RTM);
+}